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Vascular endothelial growth factor signaling in health and disease: from molecular mechanisms to therapeutic perspectives

Chunsik Lee, Myung-Jin Kim, Anil Kumar and 3 more

Signal Transduction and Targeted Therapy · 2025 · Review · CC BY

doi:10.1038/s41392-025-02249-0

Abstract

Vascular endothelial growth factor (VEGF) signaling is a critical regulator of vasculogenesis, angiogenesis, and lymphangiogenesis, processes that are vital for the development of vascular and lymphatic systems, tissue repair, and the maintenance of homeostasis. VEGF ligands and their receptors orchestrate endothelial cell proliferation, migration, and survival, playing a pivotal role in dynamic vascular remodeling. Dysregulated VEGF signaling drives diverse pathological conditions, including tumor angiogenesis, cardiovascular diseases, and ocular disorders. Excessive VEGF activity promotes tumor growth, invasion, and metastasis, while insufficient signaling contributes to impaired wound healing and ischemic diseases. VEGF-targeted therapies, such as monoclonal antibodies and tyrosine kinase inhibitors, have revolutionized the treatment of diseases involving pathological angiogenesis, offering significant clinical benefits in oncology and ophthalmology. These therapies inhibit angiogenesis and slow disease progression, but they often face challenges such as therapeutic resistance, suboptimal efficacy, and adverse effects. To further explore these issues, this review provides a comprehensive overview of VEGF ligands and receptors, elucidating their molecular mechanisms and regulatory networks. It evaluates the latest progress in VEGF-targeted therapies and examines strategies to address current challenges, such as resistance mechanisms. Moreover, the discussion includes emerging therapeutic strategies such as innovative drug delivery systems and combination therapies, highlighting the continuous efforts to improve the effectiveness and safety of VEGF-targeted treatments. This review highlights the translational potential of recent discoveries in VEGF biology for improving patient outcomes.

Full text

From PubMed Central, U.S. National Library of Medicine, as current on Oct 19, 2026. Paragraph numbers are ours, so an answer can point at one.

Introduction

Vascular endothelial growth factors (VEGF) and their receptors (VEGFR) are critical factors of angiogenesis, a process critical for physiological and pathological conditions., Specifically, the signaling axis of VEGF-VEGFR controls endothelial cell (EC) proliferation, migration, and survival, thereby facilitating the organized development of new blood vessels. Vascular development is indispensable for embryonic growth, wound healing, and the female reproductive cycle. However, when VEGF signaling is dysregulated, various disorders such as cancer, diabetic retinopathy (DR, diabetes-induced retinal vascular disorder), and age-related macular degeneration (AMD, retinal disease characterized by macular degeneration) develop. Extensive research on VEGF-VEGFR signaling has advanced the development of therapeutic inhibitors that disrupt pathological angiogenesis. As a result, this therapeutic intervention has achieved significant milestones, especially in cancer therapy and ocular disease treatment. Despite this progress with anti-angiogenic drugs, therapeutic resistance and the complex regulation of angiogenesis remain major challenges, highlighting the critical need to target the VEGF-VEGFR pathway across various indications effectively.

The concept of angiogenesis has been acknowledged as a fundamental biological process since the 18th century (Fig. 1). British surgeon John Hunter first observed vascular growth in rabbit ears exposed to cold, with his 1794 publication laying the foundation for vascular research., Carl Thiersch later linked angiogenesis to tumor biology by demonstrating that new vessels in carcinoma originate from preexisting capillaries. Further expanding this understanding, the role of angiogenesis in cancer was emphasized by Rudolf Virchow and Ernst Goldmann, who proposed its dual function in tumor progression., This connection was further strengthened by Algire and Chalkley’s studies, which culminated in Judah Folkman’s 1971 hypothesis that tumor growth is angiogenesis-dependent, thereby establishing angiogenesis as a therapeutic target.

A major breakthrough occurred in 1983 when Harold Dvorak and colleagues identified vascular permeability factor (VPF), a protein that significantly increased vascular permeability. Subsequent purification and sequencing confirmed that VPF was identical to VEGF,, with Napoleone Ferrara successfully isolating VEGF from bovine pituitary follicular cells in 1989. This identification revealed VEGF as a potent endothelial mitogen with high specificity, further confirmed by studies on its role in vascular permeability and EC proliferation., The discovery of VEGF catalyzed the identification of additional family members, including VEGF-B, VEGF-C, and VEGF-D, and their receptors VEGFR1, VEGFR2, and VEGFR3.– Moreover, alternative splicing of VEGF-A generated isoforms such as VEGF-A121, VEGF-A165, and VEGF-A189, which differ in receptor binding and bioavailability.,

The identification of VEGF as a central regulator of angiogenesis established its importance in both physiological and pathological contexts. Targeting VEGF has since become a cornerstone of anti-angiogenic therapies, profoundly impacting oncology and ophthalmology. This review examines VEGF family members and their receptors in angiogenesis and lymphangiogenesis, therapeutic interventions, and emerging research directions to advance precision medicine.

Structural diversity of VEGF family members with their receptors

The VEGF family, comprising VEGF-A, VEGF-B, VEGF-C, and VEGF-D, regulates vascular and lymphatic development through isoforms generated by alternative splicing or proteolytic cleavage. These proteins share a cystine-knot motif critical for receptor binding and dimerization,, interacting with VEGFR1, VEGFR2, VEGFR3, and neuropilin (NRP) as a co-receptor to modulate diverse functions.

VEGF-A

VEGF-A exists in multiple isoforms (Fig. 2a), including VEGF-A111, 121, 145, 165, 183, 189, and 206, generated through alternative splicing of exons such as 6A, 6B, 7A, and 7B, which tailor their lengths and interactions with extracellular matrix (ECM) components to specific tissues and contexts.– All isoforms share a conserved N-terminal region responsible for binding to VEGFRs and initiating signaling.

VEGF-A111, excluding exons 5–7, diffuses easily, resists proteolysis, and is induced by DNA damage, while VEGF-A121, lacking exons 6A and 7, is soluble, forming stable homodimers resilient to oxidative stress.,, In contrast, VEGF-A145, missing exon 7, strongly binds ECM but exhibits reduced binding with its receptor and NRP1 due to missing motifs., VEGF-A165, the predominant isoform, features an N-terminal receptor-binding domain (RBD) and a C-terminal heparin-binding domain (HBD), enabling ECM retention and systemic distribution.– This isoform binds VEGFR2 with a dissociation constant (Kd) of 1–10 nM, ensuring rapid receptor engagement at physiological levels,, and forms a homodimer (Fig. 4a), with each monomer stabilized by hydrogen bonds and hydrophobic contacts, notably Glu64 and Asp63, interacting with the VEGFR2 D2 domain.– The HBD of VEGF-A165 anchors it to the ECM, prolonging receptor activation and enhancing vascular stability.

However, VEGF-A121, lacking this HBD (Fig. 2a), disperses widely but is unable to bind co-receptor, NRP1, resulting in lower VEGFR2 activation and approximately 10-100 times reduced mitogenic activity, often leading to leakier vessels due to limited tissue retention.,, Similarly, VEGF-A145 retains partial ECM-binding capacity but has reduced heparin affinity compared with VEGF-A189, forming intermediate gradients that support vascularization when VEGF-A165 is insufficient. VEGF-A183, with a truncated exon 6A, exhibits intermediate heparin-binding affinity, remaining ECM-associated,, whereas VEGF-A189 and VEGF-A206, both retaining exons 6 and 7 (Fig. 2a), tightly bind heparan sulfate proteoglycans (HSPGs), restricting diffusion and forming steep VEGF gradients that promote dense, structured vascular networks., Furthermore, VEGF-A189’s interaction with NRP1 enhances VEGFR2 signaling, although proteolytic cleavage modulates its bioavailability. Lastly, VEGF-A206, the longest isoform, contains an extended HBD, strongly binding the ECM to localize angiogenic activity, particularly in fetal and pathological tissues.,, Thus, the diverse isoforms of VEGF-A, through their unique structural properties and receptor interactions, finely tune angiogenesis across physiological and pathological contexts.

VEGF-B

VEGF-B exists in two isoforms, VEGF-B167 and VEGF-B186 (Fig. 2b), arising from alternative splicing and distinguished by their C-terminal domains. Both share an identical N-terminal domain containing a VEGF homology domain (VHD) and eight cysteine residues crucial for forming intra- and intermolecular disulfide bonds, predominantly resulting in homodimers with a molecular weight of 44–54 kDa, widely expressed in normal and tumor tissues., Specifically, VEGF-B167, featuring a heparin-binding C-terminal domain (CTD), attaches to cell surface heparan sulfate proteoglycans (HSPGs) and constitutes >80% of VEGF-B levels in most tissues. In contrast, VEGF-B186, with a hydrophobic O-glycosylated CTD, is freely soluble, upregulated in several primary tumors and tumor cell lines, and prone to proteolytic cleavage that generates biologically active fragments. Additionally, both isoforms can form disulfide-linked heterodimers with VEGF-A, which remain cell-associated, unlike the secreted VEGF-A homodimers, suggesting diverse functions across physiological contexts., Functionally, VEGF-B binds exclusively to VEGFR1 (Fig. 4a), engaging the same region as VEGF-A but with slightly lower affinity (Kd 1–3 nM for VEGF-B167), and plays a specialized role in tissue protection and metabolic regulation rather than promoting angiogenesis.– However, despite this high-affinity binding, VEGF-B167 induces minimal signaling due to low kinase activity of VEGFR1, constrained by an inhibitory sequence in the juxtamembrane region, thus limiting its ability to transduce angiogenic signals.,, Consequently, unique structural and binding properties of VEGF-B underscore its distinct contributions to tissue homeostasis and disease.

VEGF-C

VEGF-C stands out in the VEGF family for its structural complexity and intricate post-translational modifications. It is a 419-amino acid protein with 30% sequence identity to VEGF-A and 27% to VEGF-B., VEGF-C is initially synthesized as an inactive precursor sequestered in the ECM (Fig. 2c) and undergoes sequential proteolytic cleavages to achieve full activation.

Proprotein convertases (PC) including furin generate a partially active intermediate, while the final cleavage by ADAMTS3 produces the mature form (~21 kDa) with high affinity for VEGFR2 and VEGFR3, driving lymphangiogenesis and vascular remodeling., Additionally, proteases, such as plasmin, thrombin, KLK3, and cathepsin D, modify VEGF-C, altering its receptor-binding affinities and activity profiles., These modifications, particularly in the tumor microenvironment (TME), fine-tune the role of VEGF-C in cancer progression, metastasis, and tumor-associated lymphangiogenesis.

VEGF-D

VEGF-D was identified from a human EST sequence, resulting in a full-length cDNA encoding a 354-amino acid protein with 23% identity to VEGF-C. It is structurally similar to VEGF-C but features unique N- and C-terminal extensions. VEGF-D undergoes proteolytic processing (Fig. 2c) to generate isoforms with distinct receptor affinities., The unprocessed precursor (~50 kDa) is inactive until N- and C-terminal propeptides are cleaved. Intermediate forms (31–35 kDa) bind VEGFR3 with high affinity but exhibit lower activity than the fully processed form (~21 kDa), which binds VEGFR2 and VEGFR3, promoting angiogenesis and lymphangiogenesis. This maturation, regulated by extracellular proteases such as PC and plasmin, modulates receptor specificity and bioactivity., VEGF-D differs from VEGF-C in expression patterns, predominantly found in the lungs, heart, skeletal muscle, and intestines., VEGF-C and VEGF-D regulate lymphangiogenesis via VEGFR3 and contribute to angiogenesis through VEGFR2 under specific conditions., This dual functionality highlights its role in coordinating vascular and lymphatic growth, particularly in cancer metastasis, underscoring its significance in tissue homeostasis and disease progression.

VEGF-C and VEGF-D primarily drive lymphangiogenesis by binding to VEGFR3 (Fig. 4a), a receptor predominantly expressed in lymphatic endothelial cells (LECs). Both ligands require proteolytic processing for full activity. Initially, full-length VEGF-C exhibits low affinity for VEGFR3, but cleavage by enzymes such as ADAMTS3 (Fig. 2c) enhances its binding strength, potently activating VEGFR3 to promote LEC proliferation and migration., Similarly, VEGF-D binds both VEGFR2 and VEGFR3 (Fig. 4a), with its affinity increasing post-processing, enabling the mature form to strongly support angiogenesis and lymphangiogenesis, while the unprocessed form binds VEGFR3 less effectively.,, Additionally, VEGF-D can activate VEGFR2/VEGFR3 heterodimers, contributing to lymphatic dilation and vascular remodeling, particularly in cancer.

VEGFxxxb

VEGF-A isoforms are primarily pro-angiogenic; however, specific inhibitory variants, known as VEGFxxxb isoforms, such as VEGF165b, arise through alternative splicing at the distal splice site of exon 8 (Fig. 2a). These isoforms feature a C-terminal sequence (SLTRKD) that replace the pro-angiogenic CDKPRR sequence in VEGF-Axxx isoforms, allowing them to bind VEGFR2 competitively without initiating complete receptor phosphorylation and signaling, which reduce angiogenic responses.

The existence and role of VEGFxxxb isoforms in angiogenic balance are debated. Some studies suggest they may be methodological artifacts, as large-scale RNA-seq often fails to detect them in human tissues, and antibody specificity is questioned.– This inconsistency fuels skepticism, implying VEGFxxxb isoforms might only appear under specific experimental conditions. However, VEGF-A165b, known for its anti-angiogenic properties, is elevated in peripheral artery disease (PAD) and linked to reduced vascularization despite higher total VEGF-A levels. In a PAD mouse model, metabolic dysfunction and Wnt5a signaling increased VEGF-A165b, impairing angiogenesis, while its neutralization restored revascularization. These results indicate VEGF-A165b may suppress pathological angiogenesis in PAD, suggesting potential as a therapeutic target. While the physiological relevance of VEGFxxxb remains controversial, the evidence of VEGF-A165b’s inhibitory effect in PAD highlights their potential clinical significance.

Placenta growth factor (PlGF)

PlGF is a VEGF family glycoprotein sharing ~42% sequence homology with VEGF-A., It features a conserved VHD essential for dimerization and receptor binding. Alternative splicing of PlGF generates four isoforms: PlGF-1, PlGF-2, PlGF-3, and PlGF-4, distinguished by C-terminal variations that affect their receptor affinities, spatial distribution, and biological properties.–

PlGF-1 (131 amino acids) is the most studied isoform, lacking HBD and circulating as a soluble protein. It forms homo- and heterodimers with VEGF family members to modulate VEGF-A activity., PlGF-2 (152 amino acids) contains an additional 21-amino acid HBD, enabling interactions with the ECM and cell surface, confining its distribution and enhancing localized paracrine signaling., PlGF-3 (203 amino acids) includes a unique 72-amino acid C-terminal region, with tissue-specific roles yet to be fully defined, suggesting potential regulatory functions in specific pathological contexts. In addition, PlGF-4 (224 amino acids) is the longest isoform, similar to PlGF-2 in HBD-mediated ECM and cell interactions, although expressed at lower levels. Notably, the VEGF-A/PlGF heterodimer primarily binds to VEGFR1, which leads to enhanced receptor activation compared with the individual factor alone, thereby promoting EC migration, permeability, particularly in pathological conditions, such as cancer and ischemia, where it facilitates neovascularization and vascular inflammation.

PlGF binds exclusively to VEGFR1 (Fig. 4a), playing a significant role in pathological angiogenesis. Through high-affinity binding, it promotes VEGFR1 dimerization and activation, triggering unique angiogenic and inflammatory signaling pathways despite the lower kinase activity of VEGFR1. PlGF modulates VEGF-A signaling by competing for VEGFR1 binding, reducing VEGF-A sequestration. This competition shifts receptor dynamics, freeing more VEGF-A to engage VEGFR2, thereby amplifying VEGF-A-driven angiogenesis. Furthermore, PlGF enhances vascular remodeling and inflammation through VEGFR1 signaling, extending its effect beyond direct receptor activation.

VEGFR1

VEGFR1, also known as Fms-like tyrosine kinase-1 (Flt1), regulates various aspects of angiogenesis through its complex multi-domain structure, serving as a decoy receptor. Its extracellular domain (ECD) comprises seven immunoglobulin-like (Ig) domains, with D2 and D3 forming the primary ligand-binding interface that confers high affinity for VEGF-A (Fig. 3a). This interaction sequesters VEGF-A, reducing its availability for VEGFR2, and thus modulates angiogenic signaling., The remaining Ig-like domains (D4-D7) contribute to structural integrity and facilitate receptor dimerization, supporting interactions with other receptors and stabilizing the receptor complex.–

The transmembrane domain (TMD) is crucial for anchoring the receptor to the cell membrane and facilitating its function in VEGF signaling. Notably, VEGFR1 is expressed in two isoforms: a membrane-bound full-length form and a soluble variant lacking the TMD. The TMD anchors VEGFR1 to the cell surface, enabling it to modulate the spatial distribution of VEGF and regulate downstream signaling. The intracellular domain (ICD) of VEGFR1 (Fig. 3a) comprises the juxtamembrane domain (JMD), split tyrosine kinase domain (KD), and C-terminal tail. VEGFR1 exhibits low kinase activity compared with VEGFR2, which is linked to unique structural features. The JMD includes a repressor sequence with three serine residues that inhibit downstream signaling, such as PI3K activation, even in the presence of VEGF. Additionally, an “electrostatic latch” in the JMD maintains VEGFR1 in an auto-inhibitory conformation, preventing ligand-independent activation. Moreover, VEGFR1 catalytic function is impaired by a critical asparagine in its activation loop, replacing a conserved aspartic acid, which disrupts transphosphorylation of essential tyrosine residues, further limiting its activity. These structural elements collectively define its unique role in signaling., Collectively, the complex architecture and regulatory features of VEGFR1 enable it to fine-tune angiogenesis by modulating VEGF availability and selectively suppressing signaling.

Soluble VEGFR1 (sVEGFR1)

The sVEGFR1 isoforms, sVEGFR1-i13, sVEGFR1-i14, sVEGFR1-e15a, and sVEGFR1-e15b (Fig. 3b), arise from alternative splicing and retain VEGF-binding capacity without downstream signaling. Produced by various cells, including endothelial and melanoma cells, sVEGFR1 often circulates bound to VEGF, playing a key role in regulating angiogenesis, particularly in pathological states such as pre-eclampsia.

sVEGFR1-i13, the most common isoform, is generated by intron 13 retention and acts as a VEGF scavenger, inhibiting VEGF-A-induced angiogenesis by forming non-signaling complexes with VEGFR2. sVEGFR1-i14, generated via intron 14 retention (Fig. 3b), is primarily expressed in the brain and testes, where it regulates local VEGF activity and vascular stability. sVEGFR1-e15a, formed through exon 15a inclusion, is abundant in the placenta, playing a crucial role in vascular development., Elevated levels are linked to pre-eclampsia, disrupting angiogenesis. Moreover, sVEGFR1-e15b, produced by exon 15b inclusion (Fig. 3b), features matrix-binding properties and is expressed in the placenta and vascular tissues, contributing to abnormal angiogenesis in cancers and ocular diseases. Functioning as decoy receptors, these isoforms regulate VEGF ligand distribution, limiting VEGFR2 activation and attenuating pro-angiogenic signaling. Collectively, these variants provide a dynamic regulatory mechanism that ensures tissue-specific vascular stability and growth control.

VEGFR2

VEGFR2, also known as kinase insert domain receptor (KDR) in humans and fetal liver kinase-1 (Flk1) in mice, is a receptor tyrosine kinase (RTK).– The ECD comprises seven Ig-like domains (D1-D7), each with D2 and D3 primarily responsible for high-affinity VEGF binding (Fig. 3a). D2 forms hydrophobic interactions as the main binding site, while D3 stabilizes the receptor-ligand complex through hydrophilic interactions., Ligand binding induces conformational changes in D2 and D3, essential for receptor dimerization and activation., D4 and D5 support receptor dimerization and allosteric regulation, ensuring proper alignment of the intracellular kinase domains, while D7 facilitates receptor dimerization via charged interactions in its E-F loop., Ligand binding also reorients TMD helices, a prerequisite for the kinase domain activation. Although VEGFR2 can dimerize, ligand binding ensures correct helix alignment downstream signaling.

The JMD functions as a regulatory gate, keeping the receptor in an inactive state until ligand-induced conformational changes activate the KD. The KD phosphorylates specific tyrosine residues, such as Tyr1059 (Y1059) in the activation loop, transitioning the kinase to an active state. The kinase insert domain (KID) serves as a docking platform for downstream signaling molecules, with phosphorylation at sites such as Y951 enabling interactions with effectors such as TSAd, which mediate vascular permeability and remodeling. The CTD stabilizes the receptor in an inactive state but undergoes structural rearrangements upon ligand binding to facilitate full activation. Phosphorylation of key residues within the CTD, such as Y1175, recruits signaling proteins including PLCγ1, driving EC proliferation and migration. Moreover, the KID and CTD are integral to intrinsic receptor dimerization, which is essential for full kinase activation. Deletion of these domains diminishes dimerization efficiency and compromises signaling. Together, these structural features ensure precise regulation of VEGFR2 activity, supporting its pivotal role in vascular development and pathological angiogenesis.

VEGFR3

VEGFR3, also known as Fms-related tyrosine kinase-4, is an RTK essential for vascular development but is primarily involved in lymphangiogenesis. A unique feature of VEGFR3 is the proteolytic cleavage of its ECD (Fig. 3a), resulting in a mature form linked by disulfide bonds. D1-D3 in the ECD are critical for VEGF-C binding, particularly through interactions with D2, while D1 stabilizes the ligand-receptor complex. D4-D7 mediate receptor dimerization and activation., Proteolytic cleavage at D5 divides the ECD into two subunits, which remain connected by disulfide bonds. This cleavage is essential for effective ligand binding, signaling, and receptor activation, facilitated by homotypic interactions between D5 and D7. The TMD and ICD are structurally similar to those of VEGFR1 and VEGFR2, featuring a single-pass transmembrane region and split tyrosine KD, enabling ligand-induced dimerization and autophosphorylation. VEGFR3 primarily mediates lymphangiogenesis through VEGF-C and VEGF-D signaling in lymphatic endothelial cells (LECs). It also modulates VEGFR2 activity via heterodimerization, indirectly supporting blood vessel development while maintaining its distinct role in lymphatic growth.

VEGFR dimerization

VEGFR homodimers are formed when two identical receptors pair in response to ligand binding. VEGFR2 homodimers (Fig. 4) are mainly activated by VEGF-A, which triggers a series of key processes in ECs., Upon activation, these receptors undergo autophosphorylation, initiating intracellular signaling cascades, which drive angiogenesis. In contrast, VEGFR1 homodimers, which are capable of binding to VEGF-A and other ligands, play a regulatory role. They regulate VEGFR2 signaling and inhibit excessive angiogenic responses. VEGFR2 can exist in a monomeric or dimeric state without ligand binding., VEGFR2 forms dimers without ligands at physiological levels, showing low levels of basal phosphorylation. This pre-formed, partially active state enables rapid angiogenic signaling, offering a refined model of RTK activation beyond traditional ligand-induced dimerization.

Heterodimerization fine-tunes VEGF signaling by modulating receptor activity in response to ligand concentrations and receptor abundances. VEGFR1-VEGFR2 heterodimers (Fig. 4) regulate VEGF-A activity by inhibiting VEGFR2, primarily through reduced PI3K-mediated phosphorylation, balancing EC migration and angiogenic processes. VEGFR2-VEGFR3 heterodimers, induced by VEGF-C and VEGF-D (Fig. 4), are critical for blood and lymphatic vessel formation, particularly in angiogenic tip cells where they control sprouting and branching., Modeling studies predict that VEGFR1-VEGFR2 heterodimers constitute 10–50% of active signaling complexes, depending on receptor expression levels. High VEGFR2 abundance suppresses VEGFR1 homodimer formation, favoring VEGFR2 signaling. Notably, VEGFR1-VEGFR2 heterodimers are more prevalent in neuronal cells, whereas VEGFR2 homodimers dominate in ECs. This differential dimerization may explain VEGF’s distinct roles in nerve regeneration versus blood vessel growth, underscoring the various regulatory functions of receptor interactions across physiological contexts.

Heteromeric complexes between VEGFRs and non-VEGFRs generate diverse signaling outcomes, enhancing functional flexibility. VEGFR1 forms heterodimers with NRP1 (Fig. 5a), increasing VEGF binding and modulating signaling. Additionally, VEGFR1 also forms a complex with NRP2 (Fig. 5a), enabling NRP2 to bind VEGF-A121. Moreover, VEGFR1 interacts with integrin α5β1 (Fig. 5a) to mediate endothelial adhesion to the ECM and binds FGFR1, suppressing FGF2-induced angiogenesis.

VEGFR2 similarly forms complexes with non-VEGFRs, notably NRP1 and NRP2, which act as co-receptors (Fig. 5b). VEGFR2-NRP1 heterodimers enhance VEGF binding and signaling potential. VEGF facilitates these interactions by bridging VEGFR2 and NRP1, forming complexes in cis (within the same cell) or trans (between cells), with the cis configuration being kinetically favored., The VEGF-NRP1 interaction relies on the C-terminal tail of VEGF binding to the b1 domain of NRP1, offering structural flexibility that allows these complexes to adapt to diverse cellular contexts.

αvβ3 integrin binds vitronectin to amplify VEGFR2 phosphorylation and angiogenic signaling. Similarly, α4β1 integrin forms a complex with VEGFR2 in chronic lymphocytic leukemia cells (Fig. 5b), enhancing VEGF signaling and inducing apoptosis when disrupted, underscoring a therapeutic target. VEGFR2-platelet-derived growth factor receptor β (PDGFRβ) heterodimers (Fig. 5b) link angiogenesis to vessel maturation via pericyte recruitment, stabilizing tumor vasculature. VEGFR2-epidermal growth factor receptor (EGFR) heterodimers, formed in the presence of both EGF and VEGF, offer a ligand-dependent mechanism for diversifying cancer signaling. Moreover, the CD44v6 isoform acts as a co-receptor for VEGFR2 in ECs, enhancing ERK signaling (Fig. 5b). EphA4, a receptor tyrosine kinase involved in neuronal development, forms a kinase-dependent complex with VEGFR2 (Fig. 5b), promoting neuronal differentiation in neural stem and progenitor cells when activated by ephrin A1 and VEGF-A165.

VEGFR2 forms a complex with VE-cadherin (VE-cad) at cell-cell junctions (Fig. 5b), limiting VEGFR2 phosphorylation by recruiting phosphatases. This interaction reduces VEGF-induced proliferation while promoting EC survival. Additionally, VEGFR2 interacts with c-Met (hepatocyte growth factor receptor) in a heterocomplex (Fig. 5b), where VEGF-A recruits protein tyrosine phosphatase 1B (PTP1B) to dephosphorylate c-Met, inhibiting its signaling and reducing tumor cell migration and invasiveness. VEGFR3 also forms a complex with NRP2 (Fig. 5c), enhancing lymphangiogenesis and supporting EC survival. VEGF-C stimulation strengthens this interaction, leading to increased VEGFR3 phosphorylation and activation of downstream signaling. This association with non-VEGFRs highlights the complex regulation of angiogenesis and lymphangiogenesis, offering new avenues for therapeutic intervention for abnormal blood and lymphatic vessel formation.

Neuropilin

NRP1 and NRP2 are non-tyrosine kinase co-receptors that enhance VEGF signaling by binding to the VEGF family in conjunction with VEGFRs. Although they lack catalytic activity, their ECD enhance VEGF-VEGFR signaling, playing critical roles in angiogenesis and lymphangiogenesis.

Both NRP1 and NRP2 feature a structured ECD comprising two complement-binding (CUB) domains (a1/a2) and two coagulation factor homology domains (b1/b2), which enable their binding ligands such as VEGFs and semaphorins (Fig. 5d). The a1/a2 domains are essential for binding semaphorins, such as sema3A, involved in axonal guidance, while the b1 domain allows high-affinity binding to VEGF-A165 in NRP1 and to VEGF-C in NRP2, with the b2 domain enhancing these interactions. Additionally, both NRPs contain a MAM domain (c) that supports homodimerization and receptor interactions, strengthening their signaling roles. Although both have short ICDs without catalytic activity, they feature PDZ-binding motifs (SEA) that allow interactions with intracellular proteins, such as synectin, to facilitate downstream signaling. NRP2 uniquely includes soluble splice variants (sNRP2) that act as decoy receptors by sequestering VEGF-C and VEGF-D, thus modulating their bioavailability and lymphangiogenic functions. Together, the structural motifs of NRP1 and NRP2 enable their versatile roles across physiological and pathological processes.

VEGFR1 signaling

Specific tyrosine phosphorylation sites on VEGFR1 are crucial for recruiting adaptor molecules and mediating key signaling pathways to regulate cell migration, proliferation and survival. In particular, Y794 is located in the JMD region (Fig. 6a) and is an important site for PLCγ1 binding. Additionally, activation of endothelial nitric oxide synthase (eNOS) depends on Y794, resulting in nitric oxide (NO) release, which is essential for forming capillary-like networks in vitro. Y1169 was identified as a major phosphorylation site,, critical for recruiting PLCγ1. Y1213, Y1242, and Y1333 were identified as key phosphorylation sites for VEGFR1’s biological functions (Fig. 6a). Phosphorylation at Y1213 enables the binding of several SH2 domain-containing proteins, such as PLCγ1, SHP2, and GRB2. Specifically, PLCγ1 and SHP2 were found to be directly associated with Y1213 in a phosphotyrosine-dependent manner. They also facilitate the binding of PI3K, which play an important role in cell proliferation and survival in response to VEGF. Although Y1242 and Y1333 retain kinase activity and support PLCγ1 phosphorylation, they cannot mediate downstream mitogenic signals., Y1333 also binds important signaling proteins such as NCK and CRK, while it allows for PLCγ1 recruitment, it is insufficient for full signal transduction and biological responses such as cell proliferation., Interestingly, phosphorylation at Y1333 was inhibited by VEGF165b in ischemic muscle and blocking VEGF165b restored VEGFR1 phosphorylation and enhanced the VEGFR1-STAT3 pathway, promoting angiogenesis and perfusion recovery in PAD.

Although VEGF-B binds to VEGFR1 with high affinity, it does not induce tyrosine phosphorylation. However, in human retinal ECs, it leads to only a modest increase in VEGFR1 phosphorylation. This contrasts with other VEGF family ligands such as VEGF-A, which robustly activate VEGFR1, triggering extensive phosphorylation at multiple tyrosine residues. Mass spectrometry analysis revealed that stimulation with human PlGF-2 resulted in Y1309 phosphorylation of VEGFR1 whereas Y1213 remained unphosphorylated, highlighting a selective phosphorylation pattern in response to different ligands that could lead to the differential signaling potential of VEGF-B and PlGF on VEGFR1.

sVEGFR1 signaling

sVEGFR1 is highly expressed in trophoblasts, particularly under hypoxic conditions, it reduces VEGF-mediated EC migration and angiogenesis. This upregulation, linked to conditions such as pre-eclampsia, correlates with impaired placental angiogenesis. Additionally, VEGF-A stimulates its own negative regulator, sVEGFR1, through the VEGFR2-PKC-MEK pathway, establishing a feedback loop that limits VEGF-A activity and angiogenesis.

However, in squamous cell lung carcinoma, sVEGFR1-i13 regulates a β1 integrin/VEGFR autocrine loop, promoting tumor proliferation and resistance to anti-angiogenic therapies. Elevated sVEGFR1-i13 levels are associated with advanced disease stages and poor outcomes. Moreover, sVEGFR1 interacts with α5β1 integrins, modulating cytoskeletal dynamics, and activating RAC1 signaling, thereby driving EC migration and motility through the phosphorylation of proteins such as MARCKS and RADIXIN. Notably, sVEGFR1 is essential for podocyte function and glomerular barrier integrity, interacting with lipid microdomains to regulate cytoskeletal organization and actin dynamics. Moreover, loss of sVEGFR1 disrupts the cytoskeleton, leading to proteinuria and glomerular dysfunction. These findings highlight the dual functions of sVEGFR1, acting as both an inhibitor and promoter of angiogenesis depending on the biological context and its molecular interactions.

VEGFR2 signaling

VEGFR2 dimerizes and autophosphorylates upon VEGF binding, activating pathways that regulate EC proliferation, migration, and vascular permeability. Activation of VEGFR2 is characterized by significant heterogeneity at the single-molecule level, with receptor mobility and interactions varying across the EC surface. VEGF binding triggers diverse activation mechanisms, including ligand-induced dimerization and engagement with pre-formed dimers. Even without VEGF, VEGFR2 exists as dimers with low phosphorylation levels, with ligand binding enhancing kinase activity through conformational change. Structural studies emphasize inter-domain contacts in stabilizing dimer formation, but pathogenic mutations such as C482R and R1051Q disrupt regulation, causing ligand-independent activation and altered membrane dynamics, underscoring the complexity of VEGFR2 regulation and its implications for signaling and disease progression.

Kinase assays and phosphopeptide mapping analysis reveal VEGFR2 contains 19 tyrosine residues, with 11 potential phosphorylation sites in non-catalytic regions., Key phosphorylation sites include Y951 in the KID and Y1054, Y1059, Y1175, and Y1214 in the C-terminal tail (Fig. 6b), while other residues, such as Y801, Y822, Y938, and Y996 remain unphosphorylated. Low-level phosphorylation at Y1305, Y1309, and Y1319 suggest minor role or transient roles. Phosphorylation at Y801 and Y1214, activates GAB1, promoting PI3K/AKT signaling for EC survival, migration, and NO production. Y951 (Y949 in mice) phosphorylation recruits TSAd, essential for vascular permeability by destabilizing VE-cad via the VEGFR2-TSAd-SRC complex. Mice with the Y949 mutation (Flk1Y949F/Y949F) show reduced VEGFA-induced vascular leakage and metastasis, offering therapeutic potential for conditions such as oxygen-induced retinopathy.

Y1054 and Y1059 in the kinase activation loop are critical for full VEGFR2 activity, with mutations at these sites impairing downstream signaling. Y1175 recruits adaptor proteins such as SHB (SRC homology 2 domain-containing adaptor protein B), SCK (Shc-like protein), PLCγ1, and Y1173F mutations (Flk1Y1173F/+; Y1175 in humans) in mice reduce vascular leakage and improve chemotherapy responses while preserving normal vessel development.,– Y1214 phosphorylation activates CDC42, leading to SAPK2/p38 activation, stress fiber formation, and cell migration via NCK and FYN recruitment., Y1212F mutations in mice (Flk1Y1212F/Y1212F;Y1214 in humans) show strain-specific effects, with C57Bl/6 mutants exhibiting partial embryonic lethality and reduced EC proliferation whereas FVB mutants display delayed retinal vascular development and vessel instability, suggesting the essential role of Y1212 in vascular integrity.

Serine phosphorylation at S1183 and S1188 (S1185 and S1190 in humans) in the proline, glutamic acid, serine and threonine (PEST) domain (K1171-K1209) of mouse VEGFR2 has been reported., These phosphorylation recruit β-TRCP1 E3 ligase (Fig. 6b), promoting VEGFR2 ubiquitination and proteasomal degradation. Mutation of these serine residues reduces ubiquitination, whereas phosphomimetic mutations enhance it, underscoring the role of serine phosphorylation in VEGFR2 stability. While tyrosine phosphorylation is well-studied and crucial for VEGFR2 signaling, serine phosphorylation remains less explored and threonine phosphorylation has yet to be identified.

VEGFR3 signaling

VEGFR3 phosphorylation occurs at several tyrosine residues upon VEGF-C binding with different patterns depending on whether VEGFR3 forms a homodimer or heterodimer with VEGFR2. In VEGFR3 homodimers, five key tyrosine residues are phosphorylated: Y1230, Y1231, Y1265, Y1337, and Y1363 (Fig. 6c). When VEGFR3 forms a heterodimer with VEGFR2, only Y1230, Y1231, and Y1265 are phosphorylated. Phosphorylation at Y1063 recruits adapter proteins, CRK I/II (Fig. 6c), activating the JNK pathway, which is vital for promoting cell survival. Similarly, phosphorylation at Y1230 and Y1231 plays a key role in recruiting GRB2, triggering the ERK and AKT pathways that drive cell proliferation and migration. Y1337 has also been identified as a critical phosphorylation site and serves as a docking site for the GRB2-SHC complex (Fig. 6c), which participates in RAS signaling. In the analysis of families with primary lymphedema, it was found that VEGFR3 proteins carrying mutations such as G857R, R1041P, and L1044P are tyrosine kinase-negative. Additionally, these mutant VEGFR3 receptors exhibit a longer half-life compared with wild-type receptors. Consequently, they accumulate on the cell surface, potentially contributing to the dominant-negative effects observed in individuals harboring with these mutations.

NRP signaling

NRPs utilize a conserved binding site structured by the b1 coagulation factor loop, which specifically interacts with the C-terminal arginine motif present in certain VEGF ligands., The interaction of VEGF-A165 with NRP1 is facilitated through specific residues in the b1 domain, where the ligand C-terminal arginine forms a salt bridge with Asp320 in NRP1. Additional hydrogen bonds between other amino acids stabilize this interaction, allowing for precise isoform-specific binding, which is critical for the selective signaling roles of NRP1 and NRP2. Structural studies have demonstrated that VEGF-A isoforms bind exclusively to NRP1, while VEGF-C and its related isoforms target NRP2. This distinction enables NRP1 to dominate blood vessel formation and NRP2 to dominate lymphatic vessel development.

NRP1 lacks intrinsic signaling activity. Instead, it relies on its activity to enhance VEGFR2 signaling by recruiting VEGF-A165 and positioning VEGFR2 to amplify downstream pathways. When VEGF-A165 binds to VEGFR2 with NRP1 assistance, it initiates a cascade of phosphorylation events in VEGFR2. Importantly, NRP1-mediated VEGF-A165/VEGFR2 signaling is also involved in vascular permeability, allowing for better tumor infiltration by blood vessels., NRP2, structurally similar to NRP1, is more selective in lymphangiogenesis, particularly through its interactions with VEGF-C and VEGFR3., NRP2 enhances VEGF-C binding to VEGFR3, facilitating the LEC responses required for lymphangiogenesis. Tumors often induce high expression levels of VEGF-C, which, through the VEGF-C/VEGFR3/NRP2 axis, promotes the proliferation, migration, and survival of LECs., This mechanism is especially relevant in lymphatic metastasis, as lymphatic vessels serve as conduits for tumor cells to reach and colonize distant sites.

Crosstalk with angiopoietin-TIE receptor

Angiopoietin (Ang) ligands and TIE receptors dynamically interact with the VEGF-VEGFR system to regulate vascular homeostasis and adapt to physiological and pathological changes. Ang1, via TIE2 activation, stabilizes blood vessels, supporting EC survival, vascular barrier integrity, and quiescence. In contrast, Ang2 acts as a context-dependent modulator, often destabilizing vessels under conditions such as inflammation, ischemia, and tumor angiogenesis., By increasing vessel permeability, Ang2 sensitizes ECs to VEGF, enhancing angiogenic sprouting., Notably, VEGF signaling upregulates Ang2, creating a feedback loop where VEGF-induced Ang2 expression counteracts TIE2 stabilization by Ang1.

Additionally, vascular endothelial protein tyrosine phosphatase (VE-PTP) modulates TIE2 and VEGFR2, stabilizing endothelial junctions by dephosphorylating these receptors., Its inhibition enhances TIE2 signaling and strengthens the endothelial barrier, emphasizing the interplay between the VEGF and Ang-TIE pathways in regulating vascular stability. In pathological conditions, such as cancer and retinal diseases, this balance is disrupted. Combined inhibition of VEGF and Ang2, as seen with faricimab, normalizes tumor vessels, reduces vascular permeability, and improves outcomes in diseases such as diabetic macular edema (DME, a complication of diabetes characterized by the accumulation of fluid in the macula due to damaged blood vessels) and AMD.– This Ang-TIE-VEGF interplay is critical for vascular stability, and its imbalance contributes to diseases such as cancer.

Multi-level regulatory mechanisms of VEGF and VEGFR

The VEGF family is tightly regulated at transcriptional and translational levels in response to factors such as hypoxia and metabolic changes. Disruption of this delicate regulation can lead to diseases such as cancer and lymphedema in which abnormal blood vessel growth or lymphatic function becomes a problem.

Transcriptional and post-transcriptional regulation of VEGF family

The expression of VEGF genes is highly controlled by a complex interplay between transcription factors, signaling pathways, and external stimuli. This network reflects the essential role of VEGFs in physiological processes, as well as in pathological conditions such as cancer.

Hypoxia

One of the most significant regulatory mechanisms of VEGF-A transcription is hypoxia, which is mediated by hypoxia-inducible factor 1 (HIF-1). Under normoxic conditions, HIF-1α is hydroxylated by prolyl hydroxylases, marking it for degradation via the von Hippel-Lindau tumor suppressor protein. However, under low oxygen conditions, HIF-1α is stabilized, allowing it to dimerize with HIF-1β and bind to the hypoxia response element located in the VEGF-A promoter region. This binding leads to enhanced transcription of VEGF-A and drives angiogenesis in oxygen-deprived tissues, such as growing tumor. Interestingly, HIF-1-mediated activation is not the only factor involved in VEGF-A regulation under hypoxic conditions. Additional regions upstream of the HIF-1 binding site also contribute to transcriptional activation. For example, the AP1 transcription factor binds to the region between -1168 and -1015 of the promoter, which is essential for full transcriptional activation under hypoxic conditions, particularly in glioblastoma cells.

Hypoxia-independent regulation

Several studies reveal VEGF regulation mechanisms independent of the HIF pathway, highlighting alternative angiogenesis routes. Peroxisome proliferator-activated receptor gamma coactivator 1α (PGC1α) promotes VEGF expression and angiogenesis via estrogen-related receptor α (ERRα) binding to the VEGF gene, identified in muscle cells aiding ischemic recovery. Oxidative stress also drives VEGF production, as seen in hypertrophied adipocytes releasing VEGF-A120 through the PI3K pathway without hypoxia. Similarly, cold-induced angiogenesis in adipose tissue, mediated by sympathetic activation and VEGFR2 signaling, further demonstrates hypoxia-independent regulation. Notably, a nuclear VEGF fragment (N-VEGF) upregulates VEGF-A and hypoxia-related genes independently, offering a novel HIF-bypassing mechanism.

Promoters of VEGF family members exhibit unique regulatory features enabling differential responses to stimuli. VEGF-A and VEGF-B promoters contain Sp1 and AP2 transcription factor binding sites and a CpG island, but VEGF-B uniquely includes Egr-1 sites and lacks AP1 and HIF-1 binding sites, suggesting distinct regulatory pathways., The VEGF-C promoter lacks a TATA box but contains Sp1, AP2, and NF-κB binding sites with a long 5’-untranslated region potentially affecting post-transcriptional regulation. Additionally, VEGF-D regulation involves a critical direct repeat element in its proximal region, where orphan nuclear receptors HNF-4A and COUP-TF1/TF2 bind coactivators such as CBP and GRIP-1 to enhance expression. The AP1 pathway, particularly c-Fos/c-Jun-dependent, regulates VEGF-D in lung cancer, with IL-7/IL-7R signaling upregulating VEGF-D via AP1 binding, promoting lymphangiogenesis through enhanced c-Fos/c-Jun heterodimers.

N6-methyladenosine modification

N6-methyladenosine (m6A) is a prevalent modification in eukaryotic mRNA that plays a critical role in post-transcriptional regulation. m6A modifications occur at specific adenine residues in a consensus sequence and are dynamically regulated by m6A writers (methyltransferases, such as METTL3 and METTL14), erasers (demethylases, such as FTO and ALKBH5), and readers (binding proteins, such as YTH domain family proteins). m6A modification in the 5′UTR of VEGF-A mRNA enhances cap-independent translation, driven by METTL3-mediated methylation and YTHDC2/eIF4GI interactions, which promotes VEGF-A expression and tumor progression. Knockdown of METTL3 reduced VEGF-A translation and angiogenesis, demonstrating the therapeutic potential of targeting the m6A/VEGF-A axis in lung cancer. In addition, Wilms tumor 1-associated protein (WTAP), a key component of the m6A methyltransferase complex, promotes colorectal cancer progression by enhancing VEGF-A through m6A modification mediated by YTHDC1. Interestingly, YTHDF2, an m6A reader protein, promotes hepatocellular carcinoma (HCC) progression by enhancing ETV5 translation, which upregulates PD-L1 and VEGF-A, driving immune evasion and angiogenesis. Targeting YTHDF2 with siRNA-loaded liposomes effectively reduces tumor growth and restores immune activity, highlighting its therapeutic potential. m6A modification is a dynamic regulatory mechanism that enhances VEGF-A expression, contributing to tumor progression and angiogenesis in various cancers. Targeting key components of the m6A machinery, such as METTL3, WTAP, and YTHDF2, offers promising therapeutic strategies for inhibiting VEGF-A-driven oncogenic pathways.

MicroRNAs and non-coding RNAs

MicroRNAs (miRNAs) are small, evolutionarily conserved non-coding RNAs, approximately twenty-two nucleotides in length, first discovered in C. elegans. Typically, miRNAs act as negative regulators by binding to complementary sequences in the 3′-UTR of mRNAs, promoting mRNA degradation or inhibiting translation. This post-transcriptional regulation is essential for controlling homeostatic and developmental events.

miR-126 is a key regulator of VEGF signaling, which elevates angiogenesis by suppressing negative regulators such as SPRED1 and PIK3R2, affecting the MAPK and PI3K pathways. miR-126 downregulation elevates VEGF-A expression, driving tumor angiogenesis. Epigenetic silencing of miR-126 increases VEGF-A levels, enhancing neovascularization and metastasis. Conversely, miR-16 directly targets VEGF-A in cancers such as multiple myeloma and lung cancer, reducing tumor growth and angiogenesis., Similarly, miR-205 is a key regulator in various cancers, affecting angiogenesis, metastasis, and chemoresistance. In breast cancer, miR-205 enhances chemosensitivity by targeting VEGF-A and FGF2, reducing resistance to drugs, such as doxorubicin and paclitaxel, and promoting apoptosis through the PI3K/AKT pathway. In HCC, miR-205 inhibits tumor growth and metastasis by directly targeting VEGF-A, suggesting its potential as a therapeutic target. Additionally, in breast cancer-associated fibroblasts, miR-205 mediates VEGF-independent angiogenesis through the YAP1-IL-11/IL-15-STAT3 axis, providing new strategies to combat resistance to anti-VEGF treatments. These findings underscore the dual role of miRNAs in regulating VEGF-A expression and angiogenesis, either promoting or inhibiting tumor growth and metastasis. The activity of specific miRNAs, such as miR-126 and miR-205, to modulate key pathways associated with tumor progression and angiogenesis highlights their significance in disease mechanisms and their potential as therapeutic targets.

Long non-coding RNAs (lncRNAs), RNA molecules over 200 nucleotides long, regulate gene expression without encoding proteins., They function through various mechanisms such as chromatin remodeling or acting as decoys for proteins or miRNAs. Maternally expressed gene 3 (MEG3), a key lncRNA, regulates angiogenesis and vascular function by exerting anti-proliferative and pro-apoptotic effects, partly through p53 accumulation.– In DR, MEG3 downregulation exacerbates microvascular damage by increasing VEGF and inflammatory cytokines., MEG3 also regulates VEGFR2 expression in ECs, and its reduction impairs VEGF-driven angiogenesis. Overexpression of MEG3 can mitigate high glucose-induced VEGF and TGFβ1 levels, suggesting therapeutic potential for pathological angiogenesis. In contrast, the lncRNA MALAT1 plays a pro-angiogenic role. In DR, MALAT1 supported EC growth and migration via the YAP1/miR-200b-3p/VEGF-A pathway. In retinopathy of prematurity (ROP, eye disorder of abnormal retinal blood vessel development in premature infants), MALAT1 inhibition with siRNA reduced retinal neovascularization and lowered VEGF and inflammatory markers, highlighting its role in abnormal retinal vessel development. Together, MEG3 and MALAT1 illustrate the diverse and opposing roles of lncRNAs in angiogenesis and vascular pathology.

Post-translational regulation

Post-translational modifications enhance protein diversity and help cells maintain homeostasis by altering the protein structure, stability, and interactions.

Glycosylation

Glycosylation of VEGF and VEGFR family members plays a subtle yet key role in their stability, secretion, and interactions, although it is not always essential for core functions, such as receptor binding. For VEGF-A, glycosylation at Asn74 (N74) is not essential for receptor binding or EC proliferation, although it enhances protein stability and binding to GAGs. Similarly, VEGF-B186 is glycosylated in its C-terminal region, increasing its molecular weight and solubility compared with the non-glycosylated VEGF-B167, facilitating its secretion and extracellular stability. N-glycosylation is critical for VEGF-D, as glycosylation at N155 and N185 ensures proper folding, solubility, and secretion. Similarly, for VEGFR2, glycosylation at N247 regulates receptor activation, specifically, removing sialylated N-glycans at this site increases ligand-induced activation, which, in turn, regulates receptor dimerization and downstream signaling. Moreover, glycosylation and sialylation of VEGFR2 regulate its stability, trafficking, and receptor-ligand interactions, underscoring their critical role in regulating VEGF/VEGFR signaling and function.

SUMOylation

SUMOylation is a reversible process in which small ubiquitin-like modifier (SUMO) proteins are attached to target proteins, and regulate key functions, such as DNA repair., This modification involves a series of enzymes (E1, E2, and E3) that attach SUMO to specific lysine residues, while SUMO-specific proteases (SENPs) remove it, allowing for dynamic control of protein activity. SUMOylation of Lys1270 of VEGFR2 leads to its retention in the Golgi, reducing its expression on the cell surface and impairing VEGFR2 signaling. SENP1, a SUMO-specific protease, removes this modification, allowing VEGFR2 to reach the cell membrane and activate angiogenesis., In SENP1-deficient cells, VEGFR2 remains hyper-SUMOylated and trapped in the Golgi, leading to impaired angiogenesis. Moreover, SENP6 deSUMOylates VEGFR2, promoting its transport from the Golgi to the cell membrane and enhancing VEGFR2-mediated angiogenesis. This process is particularly important in conditions such as diabetic microangiopathy, where altered SUMOylation dynamics can affect pathological angiogenesis. Similarly, SUMOylation at Lys1270 inhibits VEGFR2 activity by reducing its phosphorylation and downstream signaling pathways, such as the AKT and ERK pathways. This modification also impairs cell proliferation and migration while promoting apoptosis in non-small cell lung carcinoma cells. Conversely, deSUMOylation of VEGFR2 by enzymes such as SENP1 can enhance VEGFR2 activity and restore angiogenic signaling.

Ubiquitination

VEGFR2 ubiquitination is a critical post-translational modification that regulates its signaling, stability, and degradation, and directly affects angiogenesis. Among the key regulators, various E3 ubiquitin ligases, such as c-CBL, β-TRCP, and RNF121, activate VEGFR2 with ubiquitin, marking it for degradation through the endosomal-lysosomal system. This process is particularly important because ligand-dependent ubiquitination is necessary for regulating receptor expression on the membrane and preventing overstimulation of VEGF-A signaling., In addition, the CUL3-SPOP-DAXX axis has been identified as a key regulator of VEGFR2 expression., This complex facilitates ubiquitination of VEGFR2, reducing its expression and subsequently limiting angiogenic signaling. Moreover, E2 ubiquitin-conjugating enzymes such as UBE2D1 and UBE2D2 play crucial roles in modulating VEGFR2 ubiquitination. Notably, their depletion leads to increased VEGFR2 levels, enhancing VEGF-A-stimulated signaling pathways, such as MAPK, AKT, and PLCγ1, and promoting EC migration and tubulogenesis. Thus, the balance of ubiquitination, recycling, and degradation orchestrates the intensity and duration of VEGFR2 signaling in physiological and pathological angiogenesis. Conversely, USP8, a deubiquitinating enzyme, removes ubiquitin chains from VEGFR2, facilitating its recycling from early endosomes back to the membrane and preventing its degradation in the lysosome. However, when USP8 is depleted, VEGFR2 accumulates in early endosomes, leading to the generation of a novel 120 kDa proteolytic fragment. As a result, this accumulation also impairs VEGF-A-induced signaling, particularly through the AKT and ERK pathways.

Regulatory mechanisms of VEGFR activity

VEGFR activity is tightly regulated by various molecular processes that maintain vascular homeostasis and modulate the angiogenic response. These regulatory mechanisms include both positive and negative modulators, which fine-tune VEGFRs signaling to prevent excessive or insufficient angiogenesis.

Protein phosphatase

VE-PTP, a receptor-type phosphatase, is crucial for regulating endothelial junctions and blood vessel development., VE-PTP is highly expressed in ECs, especially during vascular development, VE-PTP interacts with TIE2 (Fig. 7a), dephosphorylating it to regulate Ang/TIE2 signaling. It also negatively regulates VEGFR2 phosphorylation at endothelial junctions, controlling VEGFR2 activity and preventing excessive angiogenic signaling. VE-PTP ensures proper EC polarity and lumen formation with its deficiency leading to increased VEGFR2 phosphorylation, abnormal vessel sprouting and endothelial dysfunction., Recent studies showed that activin A, a member of the TGFβ family, reduces VEGF-induced vascular permeability by increasing VE-PTP expression which dephosphorylates VEGFR2 and dampens VEGF signaling, suggesting therapeutic potential for conditions such as DR (Fig. 7a).

PTP1B, another phosphatase, binds to the cytoplasmic domain of VEGFR2 and directly dephosphorylates it (Fig. 7b), acting as a negative regulator. Overexpression of PTP1B reduces VEGF-induced VEGFR2 autophosphorylation, inhibiting downstream signaling ERK signaling and EC proliferation. PTP1B also dephosphorylates VEGFR2 at Y1175 site during endocytic trafficking, suppressing VEGF signaling and the PLCγ1-MAPK pathway essential for arterial development. Similarly, SHP1 negatively regulates VEGFR2 by dephosphorylating key tyrosine residues (Y996, Y1059, Y1175) (Fig. 7c) upon VEGF stimulation via a c-SRC-dependent mechanism. In addition, thrombospondin-1 (TSP-1) enhances this regulation by binding to CD36 and recruiting SHP1 to dephosphorylate VEGFR2 at Y1175 (Fig. 7d), further suppressing VEGF signaling and angiogenesis. While this study focuses on tyrosine phosphatases, serine/threonine phosphatases also play distinct roles in VEGFR2 regulation and downstream signaling.

Negative feedback regulator

Negative feedback regulation maintains homeostasis by reducing or turning off a signaling pathway once the desired response is achieved. Key regulators such as Sprouty, suppressor of cytokine signaling (SOCS), and ErbB receptor feedback inhibitor-1 (ERRFI1) inhibit excessive signaling by targeting pathways such as RTKs, JAK/STAT, and RAS/MAPK pathways, ensuring tight control over signaling cascades.,

Vasohibin (VASH), identified as a VEGF-inducible gene in ECs, acts as a negative regulator of angiogenesis., VASH inhibits EC migration, proliferation, and network formation, specifically targeting ECs without affecting other cell types., Its expression is downregulated by hypoxia and inflammatory cytokines, such as TNF-α, potentially impairing its anti-angiogenic activity in conditions such as cancer. VASH has two isoforms: VASH1 and VASH2. VASH1, with two variants (VASH1A and VASH1B), primarily functions as an anti-angiogenic factor. VASH1A normalizes tumor vessels, improving perfusion and chemotherapy efficacy, while VASH1B induces autophagic cell death in ECs, leading to vascular pruning and increased hypoxia. In contrast, VASH2 promotes angiogenesis and is highly expressed in cancers, supporting tumor growth and metastasis by facilitating new blood vessel formation.– This dual role of VASH, acting as both an inhibitor and a promoter of angiogenesis, highlights its dynamic function in tumor development and therapeutic outcomes.

The VEGF/VEGFR and Notch/Dll4 pathways function together in a finely tuned negative feedback loop., Indeed, Notch signaling is essential for angiogenesis, coordinating blood vessel formation., When Dll4 on endothelial tip cells binds to Notch receptors on neighboring stalk cells, it triggers the release of Notch intracellular domain (NICD), which moves to the nucleus to affect gene expression. This Notch/Dll4 signaling balances tip and stalk cell roles during vessel sprouting and acts closely with VEGF signaling to maintain blood vessel formation (Fig. 7e). Tip cells, which lead to new vessel sprouting, are highly affected by VEGF-A/VEGFR2 activation, which triggers strong ERK signaling and upregulates tip cell-specific genes such as Dll4.– In turn, Dll4 interacts with Notch receptors in nearby stalk cells, reducing their expression of VEGFR2 and VEGFR3 and making them less responsive to VEGF., As a result, these cells adopt the role of stabilizing newly formed vessels rather than participating in further sprouting. This feedback loop ensures that stalk cells stabilize new vessels rather than participating in further sprouting, maintaining a balance between sprouting and stabilization., This tightly regulated interaction is vital for proper vascular development, as it ensures that sprouting occurs in a controlled manner.

In contrast, Jagged1, another Notch ligand, promotes angiogenesis by antagonizing Dll4-Notch signaling (Fig. 7e), especially in cells expressing the Fringe glycosyltransferase. Fringe enhances Dll4-Notch signaling while diminishing the Jagged1 effect, allowing Jagged1 to support tip cell formation and sprouting. This interplay between Dll4 and Jagged1 finely balances angiogenesis. Interestingly, Notch signaling can drive angiogenesis independently of VEGF-A and VEGFR2 by upregulating VEGFR3, enabling vessel sprouting even when VEGFR2 is inhibited. Blocking Notch signaling increased sprouting and vessel density in the absence of VEGFR2, revealing a VEGF-A-independent mechanism. This challenges the traditional reliance on VEGF-A/VEGFR2 in angiogenesis and suggests that targeting Notch and VEGFR3 could offer new strategies, particularly for tumors resistant to anti-VEGF treatment. Overall, this complex interplay between Notch, Dll4, Jagged1, VEGF, and VEGFR signaling pathways forms a multilayered feedback system that precisely controls angiogenic sprouting and vessel stability, highlighting a sophisticated regulatory network essential for balanced vascular growth.

Physiological roles of VEGF/VEGFR signaling

In multicellular animals, the slow efficiency of oxygen and nutrient diffusion limits their reach to short distances. To address the high demand for oxygen and nutrients driven by body size expansion during evolution, the development of an internal transport and exchange system became essential for substance delivery and waste removal. Invertebrates evolved circulatory systems - both open and closed - with vessels lined by ECM. Vertebrates, however, developed a closed circulatory system featuring vessels with a true endothelial lining. This endothelial lining, composed of tightly interconnected ECs anchored to a basement membrane (BM) with basoapical polarity, represents an evolutionary innovation. Beyond forming a functional vasculature for oxygen and nutrient delivery, ECs interact with perivascular cells to regulate blood flow, modulate immune cell trafficking, and produce signaling molecules to maintain tissue homeostasis.

Angiogenesis

Angiogenesis has been recognized since ancient times, with early descriptions by the Greek physician Galen, who compared embryonic growth along umbilical veins to plant growth., While its morphological features were detailed in the 1960s,, the molecular mechanisms were not elucidated until the 1970s by Judah Folkman and others.

Angiogenesis begins (Fig. 8a) with (1) the degradation of BM and loss of pericyte coverage in response to angiogenic stimuli. (2) ECs then migrate toward the stimulus with stalk cells aligning under the control of tip cells. (3) tip cells survey the microenvironment and connect to sprouts. Following this, (4) vessel maturation occurs, involving new BM formation and coverage by perivascular cell types, (5) blood flow is established, supporting the survival of new vessels., Angiogenesis is tightly regulated by a balance of pro-angiogenic and anti-angiogenic factors. Among these, VEGF/VEGFR signaling is the best-defined key stimulator, demonstrated in models such as chicken embryos, and primate, and plays a critical role in every step of angiogenesis.

VEGF in BM degradation

During BM degradation step, ECs lose structural support and tissues undergo decompartmentalization, enabling sprouting. The BM, composed of collagen, laminin, and elastin, and inter-EC adhesion molecules such as VE-cad, claudin, and junctional adhesion molecules, separates blood from underlying tissue. BM degradation, mediated by the proteolytic process of urokinase plasminogen activator (uPA) and matrix metalloproteinases (MMPs), facilitates angiogenesis. ECM-degrading enzymes regulate VEGF signaling through:releasing bio-unavailable ligands: due to the varying heparin-binding and heparan sulfate-binding capacities of VEGF isoforms, some VEGF ligands are sequestered in the ECM. These bio-unavailable VEGF ligands are released following proteoglycan degradation, promoting angiogenesis;directly cleaving matrix-bound VEGF isoforms to modulate their angiogenic properties; andstimulating VEGF expression via membrane-type MMP and SRC tyrosine kinases., Following degradation, ECM fragments such as endorepellin, endostatin, thrombospondin-1, and tumstatin, often act as endogenous inhibitors, balancing pro-angiogenic and anti-angiogenic signals.

releasing bio-unavailable ligands: due to the varying heparin-binding and heparan sulfate-binding capacities of VEGF isoforms, some VEGF ligands are sequestered in the ECM. These bio-unavailable VEGF ligands are released following proteoglycan degradation, promoting angiogenesis;

directly cleaving matrix-bound VEGF isoforms to modulate their angiogenic properties; and

stimulating VEGF expression via membrane-type MMP and SRC tyrosine kinases., Following degradation, ECM fragments such as endorepellin, endostatin, thrombospondin-1, and tumstatin, often act as endogenous inhibitors, balancing pro-angiogenic and anti-angiogenic signals.

Accompanying BM degradation, VEGF also disrupts inter-EC adhesion in quiescent vessels by:adherens junction dissociation: VEGF induces rapid dissociation of the EC-specific tyrosine phosphatase VE-PTP from VE-cad (Fig. 8b), thereby disrupting the endothelial barrier;endocytosis of adhesion molecules: VEGF stimulation promotes endocytosis of VE-cad, enabling EC migration and proliferation; andregulating adherens junctions to control tight junctions: VE-cad promotes intracellular signaling that upregulates claudin-5, a major component of tight junction component, ensuring coordinated regulation of endothelial permeability.

adherens junction dissociation: VEGF induces rapid dissociation of the EC-specific tyrosine phosphatase VE-PTP from VE-cad (Fig. 8b), thereby disrupting the endothelial barrier;

endocytosis of adhesion molecules: VEGF stimulation promotes endocytosis of VE-cad, enabling EC migration and proliferation; and

regulating adherens junctions to control tight junctions: VE-cad promotes intracellular signaling that upregulates claudin-5, a major component of tight junction component, ensuring coordinated regulation of endothelial permeability.

Thus, VEGF downregulates both junction types and promotes angiogenesis. Conversely, adherens junction proteins, including VE-cad and PECAM1 (also known as CD31) can be phosphorylated by mechanical forces, activating VEGFR-related signaling., This integrates mechanical and chemical stimuli in ECs, driving angiogenesis.

VEGF in tip cell formation and EC migration

Once the barrier is breached, a small subset of ECs undergoes an angiogenic switch, enabling migration and proliferation. At this stage, tip cells emerge from this EC subpopulation, becoming the leading cells of sprouting vessels (Fig. 8a). Morphologically distinct, tip cells function as sensors, using dynamic filopodia to survey the environment for guidance cues and direct migration. This process resembles the insect tracheal system, where specialized cells guide migration and determine cell fate. Interestingly, although tip cells were observed in the 1970s, their molecular understanding emerged in the 2000s.

VEGF signaling strongly drives the tip cell phenotype. During retinal development, tip cells exhibit high VEGFR2 expression compared with stalk or quiescent ECs. VEGF ligands guide tip cell migration and are essential for tip cell filopodia formation, extension, and orientation. In addition to VEGF/VEGFR2 signaling, VEGFR3 is highly expressed in tip cells and sustains angiogenesis even when VEGFR2 is inhibited. VEGFR2/3 heterodimers often found on tip cell filopodia, likely mediate responses to VEGF-A and VEGF-C in vivo. Beyond regulating tip cell behavior, VEGF also affects its metabolic phenotype. While ECs in perfused vessels rely on oxygen, VEGF-driven tip cells depend on glycolysis, mediated by 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase (PFKFB).,

Uncontrolled tip cell formation results in dysfunctional vessels, so tip cells must regulate neighboring ECs to maintain the stalk cell phenotype. In zebrafish, VEGFR1 is highly expressed in stalk cells, and its loss leads to excessive tip cells and hyperbranching, indicating that VEGFR1 negatively regulates the tip cell phenotype. Furthermore, through Notch signaling, tip cells suppress VEGFR2 and VEGFR3 expression whereas increasing VEGFR1 and sVEGFR1 in stalk cells, reducing their sensitivity to VEGF and maintain the stalk phenotype., Tip cells also produce various immune and angiogenic modulators that facilitate tip-stalk cell communication. Importantly, tip and stalk cells are not fixed phenotypes. Therefore, continuous communication is essential to sustain their distinct roles during angiogenesis.

Stalk cells follow tip cells, proliferating perpendicular to their guidance to elongate vessels and form lumens for tubular morphogenesis. Disrupted VEGF signaling misorients stalk cell division, causing vessel dysmorphogenesis, indicating a flow-independent regulatory mechanism. During lumen formation, cell-cell contact is crucial for EC shape changes. In mouse aortic development, VEGF recruits myosin to apical cell surfaces at EC contact sites, driving morphological alterations.

VEGF in sprout anastomosis

The mechanism of tip cell fusion during sprout anastomosis remains unclear but appears to involve tip cell recognition, EC polarization, and apical membrane fusion. VE-cad and filopodia are essential for this process., Interestingly, the spatial distribution of VEGFR1 regulates anastomosis, as in vitro studies show that tip cells make transient contacts before stable vessel connection, while VEGFR1 reduces contact frequency and alters vessel connection site. Perivascular cells may act as chaperones and resident macrophages, which secrete sVEGFR1 via a non-canonical pathway, could play a regulatory role in sprout anastomosis.

VEGF in vessel maturation

After sprouting, vessels undergo remodeling and maturation, a critical step for establishing a functional vascular network. Blood flow delivers oxygen and mechanical forces that shape vascular remodeling., As vessels mature, ECs form a new BM to stabilize and pattern the vasculature. Perivascular cells, including pericytes, are recruited and stabilize vessels through non-VEGF signals such as PDGF, TGFβ, Ang1, and Notch., Notably, VEGF signaling inhibits vessel maturation, highlighting its role in early angiogenesis rather than stabilization.

Interplay between VEGF and other pro-angiogenic factors

Several angiogenic factors, including FGFs and Ang, stimulate angiogenesis under physiological conditions, differing from VEGF pathways., For example, FGFs are widely expressed, promoting EC proliferation, whereas VEGF is mainly EC-specific, exerting diverse regulatory effects. During development, FGF1 and FGF2 are less critical, whereas TIE2, expressed in ECs, interacts with Ang1 and Ang2. Ang1 stabilizes quiescent blood vessels, whereas Ang2 modulates the Ang1/TIE2 axis, sensitizing vessels to VEGF and other factors. Ang1 and VEGF complement in each other in early vascular development, with VEGF initiating vessel formation and Ang1 supporting subsequent maturation. Ang2 is required for post-natal angiogenesis. These factors, along with VEGF, synergistically orchestrate angiogenesis to meet tissue-specific vascular needs.,

VEGF signaling is central to every step of angiogenesis (Fig. 8a), yet its exact role in processes such as sprout anastomosis remain unclear due to EC heterogeneity and dynamic phenotypic changes. The involvement of other cell types also requires further investigation. Recent single-cell studies may provide deeper insights. While the molecular mechanisms of VEGF signaling in angiogenesis are well understood, angiogenesis relies on precise spatiotemporal regulation to ensure proper vascular development. A comprehensive understanding of these dynamic processes may open new avenues for therapeutic strategies targeting pathological angiogenesis.

Vasculogenesis and other types of vascular formation

Vasculogenesis involves the de novo formation of blood vessels from endothelial progenitor cells (EPC), occurring during early embryonic development or rapid vascularization of avascular tissues., Endothelial and hematopoietic progenitor cells arise from the embryonic mesoderm, yolk sac, allantois, and placenta, migrating to blood islands where they differentiate into angioblasts (forming ECs) and hematopoietic precursors (forming blood cells)., Differentiated ECs polarize and form a vascular lumen, through intracellular vesicle fusion or slit formation, eventually forming major vessels such as aorta or middle cerebral artery after BM deposition.

Morphogens including Wnt, Hedgehog, TGFβ, and FGFs, collectively regulate blood island formation, angioblast induction, and yolk sac vasculogenesis. Additionally, VEGF, expressed in the extra-embryonic endoderm and mesoderm, is crucial for vasculogenesis; for instance, embryos lacking VEGF, VEGFR2, or VEGFR3 exhibit severe defect (Table 1), including failed blood island formation, aortic abnormalities, or large vessel defects,– Moreover, VEGFR1 inhibits EC overgrowth and thereby tightly regulates VEGF signaling during vasculogenesis.

Intussusceptive angiogenesis involves vessels splitting to form new vessels, observed in developing organs and pathological vascular remodeling., During this process, transluminal tissue pillars develop and fuse, creating new vascular structures. While VEGF and Notch signaling are implicated in intussusceptive angiogenesis,, the detailed molecular mechanisms remain unclear. Alternatively, another mode of vascular formation involves the segregation of cells from a common precursor vessel into discrete arterial and venous vessels, as seen in zebrafish embryo development. Specifically, VEGF-induced Ephb2a directs angioblast migration, determining vessel identity. Compared with angiogenesis, vasculogenesis and other types of vascular formation are less studied with most descriptive studies, offering limited insights into molecular mechanisms. This is partly due to the transient nature of these processes and their overlapping occurrence in vivo, which complicates understanding. To address this, models that can specifically induce distinct forms of vascular formation are needed to clarify whether and how VEGF signaling affects these processes.

Lymphangiogenesis

Approximately 400 years ago, lymphatic vessels were first described by Gaspare Aselli in Italy and their route was correctly identified by Jean Pecquet in France. Functioning as a parallel circulatory system to blood vessels, lymphatic vessels maintain tissue homeostasis by draining interstitial fluid and transporting antigens and immune cells to lymph nodes for immune surveillance. During early development, lymphatic vessels originate from the cardinal, as demonstrated by genetic tracing of Prox1 cells in mice.

Since the 1990s, lymphangiogenic factors have been identified with the VEGF-C/D-VEGFR3 axis emerging as the most critical signaling pathway regulating lymphangiogenesis., Notably, VEGF-C transgenic mice exhibited overgrowth of lymphatic vessels but not blood vessels, underscoring its specific role in lymphangiogenesis. Subsequently, VEGF-D was identified and shown to also promote lymphangiogenesis., However, while Vegfc-deficient mouse embryos failed to form lymphatic vessels, this defect could be rescued by external VEGF-C or -D supplementation. Interestingly, although VEGF-D is a potent lymphangiogenic factor, it is not essential for lymphatic development. VEGFR3 is crucial for blood and lymphatic vascular formation during early developmental stages. Studies involving mutations in the ligand-binding domain or tyrosine KD of VEGFR3 revealed that ligand binding is essential for lymphatic vessel development but not for blood vessel development. This supports a regulatory model where VEGFR3 modulates VEGF-A/VEGFR2 signaling through VEGFR2/3 heterodimers for blood vascular formation. Thus, the VEGF-C/D-VEGFR3 axis plays a pivotal role in lymphangiogenesis, distinct from its tole in blood vessel development. Furthermore, other members of the VEGF/VEGFR family also contribute significantly to lmphangiogenesis. LEC-specific knockout of Vegfr2 (Flk1) leads to hypoplastic yet functional lymphatic vessels, indicating that VEGFR2, activated by both VEGF-A and VEGF-C, plays a role in this process. Additionally, VEGF-A alone has been shown to induce lymphangiogenesis,, although this effect is partially mediated by macrophage recruitment., Thus, while VEGF-C/D-VEGFR3 remains central to lymphangiogenesis, VEGFR2 and VEGF-A also play supportive roles, often involving indirect mechanisms such as macrophage involvement.

Ang-TIE signaling,, FGF signaling,, and other factors including HGF, PDGF, and IGF have been shown to promote lymphangiogenesis., However, despite the identification of numerous lymphangiogenic factors, it remains unclear whether the mechanisms of lymphatic vessel sprouting and guidance resemble those of angiogenesis. The current model divides lymphangiogenesis into four key steps: (1) guidance/alignment, (2) proliferation, (3) sprouting, and (4) redirection. In this process, the BM stabilizes lymphatic vessels, LEC tip cells guiding sprouting, and tissue macrophages provide VEGF-C guidance. Future studies should focus on dissecting each step of lymphangiogenesis and uncovering the molecular mechanisms underlying these processes.

Embryonic development

Blood vessels are present in nearly all tissues, making VEGF signaling crucial for regulating angiogenesis and maintaining tissue homeostasis, including vascular permeability. To highlight its physiological significance, VEGF signaling plays key roles in (1) embryonic development by regulating angiogenesis, (2) maintaining endocrine organ homeostasis through vascular permeability, and (3) exerting neurotrophic functions independent of ECs.

Mouse embryos lacking VEGF ligands or their receptors exhibit embryonic lethality due to vascular defects (Table 1).–, Specifically, VEGF-A, VEGFR2, and VEGFR3 promote hematopoietic and EC development, while VEGFR1 ensures precise blood vessel assembly. In contrast, PlGF and VEGF-B have minimal roles in development, whereas VEGF-C drives lymphatic vascular formation. Even slight alterations in VEGF levels, such as deletion of a single allele or modest overexpression, lead to abnormal blood vessel development and embryonic lethality,, emphasizing the need for precise VEGF signaling regulation during embryonic development. Postnatally, VEGF signaling is critical for organ development, as its disruption causes glomerular defects in neonates, but not in adult mice. Although VEGF/VEGFR signaling is vital for embryonic development, it remains active in adults, affecting both pathological and physiological conditions. For instance, modestly elevated circulating VEGF levels from early adulthood have been shown to preserve a youthful microvascular phenotype and extend lifespan in mice. Thus, while VEGF signaling is indispensable during development, its regulation continues to play a beneficial role in maintaining physiological health throughout life.

Vascular permeability

Vascular permeability is a selective mechanism that regulates material exchange between blood vessels and surrounding tissues through small and large pores, glycocalyx, and tight junctions on ECs (Fig. 8b). Under normal conditions, the endothelium allows the passage of solutes and small molecules while restricting larger molecules. However, in response to stimuli, the endothelium can become more permeable, enabling the leakage of larger molecules or cells. This permeability varies across organs based on physiological needs; for example, fenestrated endothelial in endocrine glands and kidney peritubular capillaries facilitate rapid transport, while the blood–brain barrier features tight junctions and perivascular coverage to restrict permeability. This plasticity is tightly controlled by various extracellular signaling molecules, including VEGF, Ang, histamine, platelet-activating factor, as well as intracellular mediators, such as NO, focal adhesion kinase (FAK), and GTPases.,

VEGF-A/VEGFR2 signaling is widely recognized for promoting vascular permeability through multiple mechanisms. Specifically, the Y949 (Y951 in humans) in VEGFR2 in mice binds to TSad, regulating c-SRC signaling at the EC junction. Disruption of Y949 signaling stabilizes adherens junctions, blocking extravasation. In contrast, the Y1173 in mice (Y1175 in humans) binds to PLCγ1, driving EC proliferation, and its disruption halts developmental processes. Notably, the role of VEGFR2 in permeability depends on its co-receptor NRP1, as SRC signaling in EC is largely NRP1-dependent. Beyond direct junction regulation, VEGFR2 activates AKT and eNOS to promote NO synthesis, indirectly enhancing vascular permeability, a process regulated by caveolin-1., These findings highlight the critical role of VEGF-A/VEGFR2 in paracellular permeability, surpassing even certain inflammatory cytokines in potency. Additionally, VEGF stimulates the formation of vesiculo-vacuolar organelles (VVO) in EC, interconnected structures spanning the EC lumen, which support transcellular permeability and macromolecular extravasation. Thus, VEGF signaling plays a dual role in regulating both paracellular and transcellular permeability, underscoring its importance in vascular function. VEGF/VEGFR signaling primarily regulates endothelial permeability through VEGFR2, facilitating the rapid extravasation of macromolecules (Fig. 8b). Furthermore, the glycocalyx, a key structural component for vascular permeability, can be cleaved by inflammatory cytokines. While it remains unclear whether VEGF signaling directly regulates the glycocalyx in EC, the glycocalyx itself inhibits VEGFR2 internalization, reducing VEGF-induced vessel permeability. Overall, these interactions highlight the complex relationship between VEGF signaling and the glycocalyx in regulating vascular function.

Under physiological conditions, most tissues require a certain degree of vascular permeability for efficient substance exchange. Particularly, endocrine organs exhibit high permeability to facilitate hormone delivery, maintained by both general and organ-specific factors. For example, the thyroid gland, the largest endocrine organ, features a dense capillary network with abundant endothelial fenestrae, which are VEGF-dependent for their maintenance. Recent studies highlight that VEGF/VEGFR signaling, rather than Ang/TIE signaling molecules, is prominently expressed in thyroid organs. Blocking VEGF or VEGFR2 in the thyroid leads to thickened cytoplasmic membrane, loss of EC fenestration, and accumulation of caveolae, modestly reducing circulating hormone levels., Importantly, VEGF-VEGFR2 inhibition not only alters vascular permeability but also causes significant vascular regression in thyroid, more pronounced than tumors., Clinically, this is evident as bevacizumab rapidly reduces thyroid perfusion. Even in healthy adults, autocrine VEGF is essential for blood vessel homeostasis, as endothelial-specific deletion of Vegf results in progressive endothelial degeneration. Thus, endocrine organs uniquely depend on VEGF-VEGFR2 signaling not only for vascular permeability but also for maintaining vascular homeostasis.

Animal models of VEGF and VEGFR

Animal models, including various VEGF and VEGFR knockout and conditional knockout mouse lines, have provided pivotal insights into the complexities of VEGF signaling in endothelial and lymphatic cells. These models reveal how genetic alterations in the VEGF/VEGFR pathways affect vascular development, lymphangiogenesis, and pathological processes, offering a detailed view of the VEGF regulatory network in both physiological and pathological contexts. These distinct phenotypes underscore the crucial roles of VEGF signaling in various biological processes (Table 1).

VEGF and VEGFR signaling in diseases

The discovery of VEGF has been a pivotal milestone and has significantly advanced our understanding of angiogenesis. Recent studies have investigated the specific roles of different VEGF isoforms under various conditions. These isoforms have also been found to contribute to several cardiovascular, ocular, metabolic, and reproductive disease. Despite this advancement in our knowledge, the intricate relationship between hyperglycemia, oxidative stress, inflammation, and VEGF expression remains a challenging area of research.

Cancer

Cancer, the second leading cause of death worldwide, is projected to account for approximately 618,120 fatalities and 2 million new cases in the US in 2025, according to the American Cancer Society’s latest estimates. Globally, the burden continues to escalate, with projections suggesting new cancer cases could surpass 35 million by 2050. This complex disease can originate in nearly any part of the body, characterized by the uncontrolled proliferation of abnormal cells that invade neighboring tissues and metastasize to distant sites through blood vessels, reflecting its developmental intricacy and diverse manifestations.

Tumor angiogenesis

Dr. Folkman proposed the existence of a tumor angiogenic factor (TAF) critical for tumor growth, suggesting that inhibiting TAF could suppress tumor progression. Angiogenesis, essential for solid tumor growth and metastasis, is regulated by a balance of pro- and anti-angiogenic factors. Tumor cells promote angiogenesis by secreting VEGFs, stabilized by HIF-1α in a hypoxic TME,, while oncogenes such as RAS and RAF (Fig. 9) further affect VEGF expression.– In turn, VEGF from tumor and stromal cells drives pathological angiogenesis by activating VEGFR1 and VEGFR2 on tumor ECs.

Recent studies show that most VEGF family members, except PlGF, correlate with angiogenesis and lymphangiogenesis in cancer. However, the role of PlGF remains complex, as it can either promote, or inhibit tumor growth, depending on the context. Similarly, VEGF-B exhibits varying effects on tumor angiogenesis and survival, with its dual functions linked to FGF-2/FGFR activity. Likewise, VEGF-C, activating VEGFR2 and VEGFR3, promotes blood vessel growth in breast cancer, while its overexpression enhances lymphangiogenesis and lymphatic metastasis.,– In addition, VEGF-A also supports lymphangiogenesis by activating VEGFR2, forming heterodimers with VEGFR3, and recruiting macrophages and mast cells to secrete VEGF-C and VEGF-D, thus promoting lymphatic vessel growth., Furthermore, inhibition of VEGFR3 signaling blocks VEGF-C-induced lymphangiogenesis and tumor cell infiltration into lymphatic vessels. Notably, VEGF-D overexpression can drive tumor growth and angiogenesis, enabling to anti-VEGF-A therapy and highlighting its critical role in cancer progression., These findings underscore the complex and pivotal roles of VEGF family members in tumor angiogenesis, lymphangiogeneis, and therapeutic evasion.

Importantly, a recent study presents a single-cell atlas of tumor vasculature, analyzing around 200,000 cells from various cancers. Specifically, tumor angiogenesis is traced from venous ECs to capillary and arterial ECs through angiogenic stages, with apelin+ tip cells identified as biomarkers for poor prognosis and anti-VEGF therapy response. Furthermore, LECs show two lineages, one driving lymphangiogenesis and another enhancing antigen presentation. Additionally, BASP1+ matrix-producing pericytes linked to endoplasmic reticulum stress were shown to play a pro-angiogenic role. Moreover, neovascular ECs also contribute to an immunosuppressive TME through stromal and immune cell interactions. In summary, these findings highlight the interplay between vascular cells and the TME, offering insights into vascular heterogeneity and novel anti-angiogenic therapeutic targets.

Cardiovascular diseases

Cardiovascular diseases (CVDs) encompass a range of disorders affecting the heart and blood vessels, rooted in vascular dysfunction, including atherosclerosis, myocardial infarction, and hypertension.

Atherosclerosis

VEGF plays a complex role in atherosclerosis, with both beneficial and detrimental effects. Systemic VEGF gene delivery does not induce atherosclerosis in hypercholesterolemic mice, but local administration of VEGF-A and VEGF-D promotes angiogenesis and intimal hyperplasia in rabbits. Moreover, VEGF can recruit macrophages and monocytes, potentially exacerbating plaque formation, as demonstrated by intracoronary VEGF-A164 delivery, which worsened arteriosclerotic injury in rabbits. Similarly, macrophages in human plaques express VEGF-A via HIF-1α, highlighting its inflammatory role. Additionally, PlGF-2 gene transfer increases VEGF-A levels, driving inflammatory angiogenesis, while PlGF itself promotes atherosclerosis in hypercholesterolemic models despite reducing macrophage content., Furthermore, VEGF facilitates macrophage infiltration through VEGFR1 and mobilizes endothelial and smooth muscle progenitor cells via VEGFR2, contributing to coronary arteriosclerosis., Additionally, VEGF-A accelerates vascular remodeling by enhancing T cell recruitment to vessels. Therefore, while VEGF supports angiogenesis and vascular repair, its role in plaque formation and progression underscores its context-dependent and multifaceted impact on atherosclerosis (Fig. 9).

Low VEGF-C levels are linked to higher mortality in patients with coronary artery disease and may enhance plaque stability, positioning VEGF-C as a promising biomarker and therapeutic target for CVD. Specifically, its protective effects on smooth muscle cells, promotion of cholesterol efflux, and reduction of cellular stress underscore its role in maintaining vascular health and mitigating the progression of atherosclerosis., Thus, further investigation is warranted to explore its clinical applications for risk stratification and innovative treatments. Similarly, VEGF-D is expressed at all stages of human atherosclerotic lesion development, implicating its involvement in the disease. For example, adenovirus-mediated VEGF-D gene transfer has been shown to reduce neointimal thickening and macrophage infiltration, suggesting its therapeutic potential. Moreover, elevated VEGF-D levels also independently predict mortality in patients with coronary artery disease undergoing elective angiography. Collectively, these findings emphasize multifaceted role of VEGF-D in atherosclerosis, highlighting its potential as both a therapeutic target and a prognostic marker in CVD. Together, VEGF-C and VEGF-D represent critical factors in understanding and managing cardiovascular diseases.

Myocardial ischemia (MI)

The roles of VEGFs and VEGFRs in MI are complex, significantly impacting cardiac function and recovery. Specifically, ischemia triggers VEGF release from cardiomyocytes, binding to VEGFR1 and VEGFR2 on microvascular ECs,,, promoting angiogenesis and vascular remodeling. However, recent studies show mild hypoxia in developing mouse hearts does not induce VEGF-A or coronary angiogenesis, suggesting other factors. Moreover, Vegfa deletion in cardiomyocytes impairs blood vessel formation and worsens heart contractions.

Inflammation drives MI, with Annexin A1 promoting cardiac repair and angiogenesis via macrophage-derived VEGF-A. Similarly, VEGFR2 signaling also aids barrier function with losartan treatment reduces ischemic reperfusion injury in mice. Intracoronary VEGF-A gene transfer improves myocardial perfusion, offering a strategy for therapeutic angiogenesis in ischemic heart disease. Furthermore, VEGF-B or PlGF overexpression enhances coronary vasculature and stimulates cardiomyocyte hypertrophy, yet long-term hypertrophy effects remain unclear.,, Combining PlGF and VEGF-A enhances angiogenesis in ischemic myocardial tissue resistant to VEGF-A alone, suggesting synergistic benefits in certain clinical scenarios. Notably, VEGF-B promotes coronary blood vessel development without permeability or inflammation, making it an attractive therapeutic target.,

Post-MI, VEGF-C enhances lymphangiogenesis, reduces fluid retention and inflammation (Fig. 9), and improves cardiac function., Additionally, VEGF-C protects cardiomyocytes by activating AKT signaling through VEGFR2, thereby reducing apoptosis. Similarly, VEGF-D increases vascular permeability, stimulates angiogenesis, and improves blood flow, yet it also contributes cardiac fibrosis, underscoring the need to balance its therapeutic benefits and adverse effects., In summary, the VEGFs and their receptors diversely affect MI through angiogenesis, inflammation, cardiac repair, necessitating deeper understanding for targeted therapies.

Hypertension

Hypertension is the most common comorbidity associated with anti-VEGF therapy., Under hypertensive conditions, disrupted VEGF signaling impairs endothelial dysfunction and alters hemodynamics. Specifically, VEGF-A binding to VEGFR2 or shear stress activates the PI3K/AKT pathway, stimulating eNOS to produce vasodilators such as NO and prostacyclin (PGI2), highlighting the critical role of VEGF signaling in vascular tone regulation.,

Studies in animal models and patients treated with VEGF signaling pathway (VSP) inhibitors show reduced urinary nitrite/nitrate excretion and serum NO metabolites, impairing NO-dependent microvasodilation., Additionally, VSP inhibitors upregulate endothelin-1 (ET-1), a potent vasoconstrictor, contributing to hypertensive effects. These findings reveal the complex interplay between VEGF signaling, NO production, and blood pressure regulation., In patients with gastrointestinal stromal tumors, regorafenib-induced ET-1 fluctuations correlated with therapy cycles and blood pressure changes. In contrast, sorafenib did not significantly alter ET-1 levels in renal cell carcinoma patients, despite hypertension. Similarly, preclinical studies in rats showed that sunitinib increased ET-1 and blood pressure, effects reversed by the endothelin receptor antagonist macitentan. These results suggest a variable interplay between VSP inhibitors, ET-1, and blood pressure, depending on the inhibitor and cancer type. Moreover, VSP inhibition may trigger hypertension via microvascular rarefaction, reducing vessel density, or functional rarefaction, heightening vasomotor tone and limiting blood flow. Recent studies also link VSP inhibitors to salt-sensitive hypertension through interstitial sodium buildup and osmotic stress, especially in the skin.– This complex interplay between VEGF signaling, endothelial function, and blood pressure highlights challenges in managing anti-VEGF therapy-induced hypertension, warranting further research for effective strategies.

Ocular diseases

Ocular diseases encompass a range of conditions that target the eye and its visual system, significantly impacting various retinal cell types and structures. Notably, the prevalence of ocular microvascular diseases, such as DR and AMD has risen considerably. These conditions pose significant threats to ocular health and visual acuity, often leading to visual impairment or blindness if not treated promptly.

Diabetic retinopathy

The global rise in diabetes has intensified microvascular complications, notably, DR, a leading cause of vision., Specifically, hyperglycemia forms AGEs, driving neovascularization, permeability, and macular edema in DR. As a result, retinal cells such as ganglion cells, astrocytes, ECs, pericytes, microglia, Müller glia, and retinal pigment epithelial (RPE) cells secrete VEGFs. Moreover, ischemia worsens inflammation and endothelial damage, upregulating VEGFs, VEGFRs, and HIF-1α to regulate neovascularization.–

VEGF-A plays a dual role in DR, both promoting vascular permeability and protecting retinal cells. Initially, it increases edema, and disrupts blood-retinal barrier,, fueling endothelial proliferation and proliferative diabetic retinopathy (PDR), marked by abnormal retinal vessel growth. Yet, it also guards neurons and Müller cells against apoptosis,, reflecting complex regulation.

Hyperglycemia-induced reactive oxygen species (ROS) abnormally phosphorylate VEGFR2 independently of VEGF-A, with elevated VEGFR2 expression in diabetic retinal microvascular ECs, especially in the macula. Consequently, VEGF-A phosphorylates tight junction proteins such as occludin, increasing permeability,– and activates pathways such as phospholipase A2, PKC, and PI3K/AKT, driving endothelial dysfunction and plasma extravasation. Additionally, VEGF-A level variations affect DR risk,, with elevated VEGF-A, PlGF, and VEGF-B in vitreous and serum promoting angiogenesis and PDR., However, their roles in progression and treatment response remain unclear.

In contrast, VEGF-B, VEGFR1, and NRP1 provide neuroprotection via AKT and ERK pathways, reducing apoptosis, while low VEGF-B impairs vascular integrity by downregulating VE-cad, ZO-1, and CDC42. Similarly, PlGF rises in diabetic macular edema (DME) and PDR,– disrupting RPE barrier integrity via MEK/ERK under hypoxia. For instance, PlGF deletion in diabetic mice reduces apoptosis and microcapillary damage by inhibiting HIF-1α-induced VEGF signaling through AKT, yet its overexpression increases microaneurysms, leakage, and inflammation via IL-6. Additionally, dysfunctional lipid metabolism upregulates VEGF-A, VEGF-C, VEGF-D, and PlGF, advancing DR. Notably, VEGFR2 localizes to leaky microvessels, while VEGFR3 is limited to specific PAL-E-positive vessels, indicating altered receptor expression. Although VEGFs’ roles in DR are clear, isoform-specific contributions and receptor crosstalk require further study to refine targeted therapies.

Age-related macular degeneration

AMD is a complex, multifactorial disease influenced by aging, environmental factors, and genetic predisposition. Its pathogenesis is associated with chronic inflammation, lipid accumulation, oxidative stress, and ECM dysfunction. In neovascular (wet) AMD (nAMD), immune cell recruitment to the macula leads to the release of pro-inflammatory and pro-angiogenic cytokines, including VEGF, driving pathological neovascularization.

VEGF-A is the primary factor mediating this process, making it a key therapeutic target. Additionally, VEGF-B overexpression disrupts the outer blood-retinal barrier and promotes inflammatory angiogenesis by upregulating cell survival factors. Notably, patients with wet AMD and polypoidal choroidal vasculopathy exhibit elevated VEGF-B levels, suggesting its involvement in disease progression, particularly after VEGF-A inhibition.

Beyond VEGF-A and VEGF-B, VEGF-C and VEGF-D, traditionally recognized for their roles in lymphangiogenesis via VEGFR-3, have recently been implicated in retinal and choroidal angiogenesis., These factors can activate VEGFR-2, contributing to vascular permeability and neovascularization independently of VEGF-A. Importantly, VEGF-C and VEGF-D are upregulated following VEGF-A inhibition with agents such as aflibercept or bevacizumab, which may limit the efficacy of anti-VEGF-A therapy and lead to persistent disease activity. RPE cells from wet AMD patients express VEGF-C and VEGF-D, further promoting neovascularization despite the absence of lymphatic vessels. Inflammatory cytokines in AMD also upregulate VEGF-A and VEGF-C, with VEGFR-2 and VEGFR-3 detected in choroidal neovascularization (CNV) membranes, reinforcing the role of VEGF family members in disease progression., Given the limitations of VEGF-A inhibition alone, novel approaches targeting VEGF-C and VEGF-D have emerged. A phase 2b clinical trial of OPT-302, a VEGF-C/D inhibitor, demonstrated that adding VEGF-C/D blockade to standard anti-VEGF-A therapy (ranibizumab) significantly improved visual outcomes in nAMD patients. These findings suggest that dual VEGF-A and VEGF-C/D inhibition may enhance therapeutic efficacy by targeting alternative angiogenic pathways, although further studies are needed to confirm long-term benefits.

Meanwhile, VEGFR1, highly expressed by infiltrating monocytes and macrophages in AMD, modulates angiogenesis by suppressing VEGF-A-induced migration when neutralized. Blocking PlGF and VEGFR1 reduces monocyte recruitment after laser-induced injury, highlighting VEGFR1’s role in immune cell infiltration., Additionally, excessive VEGF-A disrupts RPE barrier function, exacerbating choroidal neovascularization. However, while VEGF-A/VEGFR-2 inhibition reduces vascular permeability, RPE-derived VEGF-A is essential for choriocapillaris maintenance,, underscoring the need for a delicate balance in anti-VEGF therapies to suppress pathological signaling without compromising retinal function.

A comprehensive understanding of VEGF signaling in AMD, particularly the interplay between VEGF-A, VEGF-B, VEGF-C, and VEGF-D, is essential for optimizing therapeutic strategies and refining treatment approaches to improve long-term patient outcomes.

Metabolic diseases

Metabolic disorders arise from disruptions in energy utilization and storage, driven by hormonal, enzymatic, and cellular imbalances. In this context, VEGFs play a dual role in metabolic diseases, influencing vascular complications in diabetes mellitus, diabetic nephropathy, and non-alcoholic fatty liver disease with both protective and detrimental effects.

Type 2 diabetes mellitus (T2DM)

T2DM is a metabolic disorder driven by insulin resistance or β-cell dysfunction, leading to vascular alterations in insulin-sensitive tissues. Notably, VEGF-A, primarily produced by pancreatic α and β cells, plays a key role in islet microvasculature. Deleting Vegf in insulin-producing cells reduces islet vascularization and impairs insulin secretion, while VEGF-A deficiency leads to islet hypoxia and elevated blood glucose levels.–

Glucose homeostasis and VEGF-A secretion are tightly linked. Lower glucose levels reduce VEGF-A secretion, whereas prolonged hypoglycemia induces apoptosis in ECs and β cells. Exogenous VEGF-A mitigates hypoglycemia-induced damage, suggesting potential therapeutic applications. However, chronic VEGF upregulation may be detrimental, contributing to β-cell dysfunction and PKC-mediated endothelial abnormalities in diabetic vasculopathy., In the inflammatory context, VEGF-A exerts complex effects. Diabetic patients exhibit impaired monocyte responses to VEGF-A, hindering inflammatory cell infiltration in ischemic tissues and compromising wound healing. Conversely, VEGF-A promotes macrophage recruitment, supporting β-cell proliferation and regeneration.– Blocking VEGF-B improves glucose tolerance (Fig. 9) and insulin sensitivity, while VEGF-C accelerates wound healing in diabetic conditions.

Ultimately, VEGF signaling acts as a double-edged sword in T2DM. While essential for islet function, dysregulated VEGF expression may worsen β-cell dysfunction and vascular complications. Future research should clarify the roles of VEGF isoforms to develop targeted therapies that optimize VEGF levels, improving glycemic control and preventing diabetic complications.

Diabetic nephropathy (DN)

DN, a major renal complication of diabetes, arises from chronic hyperglycemia-induced oxidative stress, inflammation, and vascular dysfunction., In the kidney, VEGF-A, mainly produced by podocytes and detected in distal tubules and collecting ducts,– is expressed in glomerular and tubular cells such as pericapillary ECs, mesangial cells, and interstitial fibroblasts, to maintain vascular integrity.,, Initially, in early DN, rising VEGF-A levels in renal and urinary systems increase permeability and endothelial dysfunction, driving glomerular damage,, with elevated VEGF and VEGFR2 expression in diabetic models., For example, in eNOS (Nos3) knockout mice, higher VEGF-A correlates with glomerular hypervascularization, worsening DN. However, anti-VEGF therapy reduces albuminuria and glomerular dysfunction in diabetic mice,, although excessive suppression risks endothelial injury and increased permeability.

VEGF-B contributes to DN by inducing podocyte insulin resistance via lipid accumulation, with elevated levels in T2DM patients linked to renal decline. Notably, an anti-VEGF-B/IL-22 fusion protein mitigates oxidative stress, inflammation, and lipid deposition, offering therapeutic potential. Similarly, VEGF-C and VEGF-D, signaling through VEGFR3, regulate glomerular permeability despite the absence of lymphatics in glomeruli, as podocyte-derived VEGF-C enhances permeability via VEGFR3 and VEGFR2., In contrast, podocyte-specific VEGF-C overexpression in diabetic mice improves albuminuria and endothelial function by lowering VEGFR2,, while elevated VEGF-D correlates with renal impairment, albuminuria, and proteinuria.

Nevertheless, excessive VEGF manipulation can be detrimental. Complete Vegfa loss in podocytes causes neonatal death, and a single allele leads to proteinuria and endotheliosis, while its deficiency disrupts complement regulation, increasing C3 accumulation. Likewise, bevacizumab-induced VEGF inhibition in humans causes endothelial injury and plasma buildup, and Vegfr1 deletion in podocytes triggers severe proteinuria, although kinase-deficient VEGFR1 mitigates this, suggesting sVEGFR1’s protective role.

Thus, VEGF signaling in DN balances vascular protection and pathological remodeling. The complex interplay of VEGF isoforms and receptors highlights the need for precise therapies to modulate VEGF activity, preserve renal function, and minimize harm, necessitating further research.–

Non-alcoholic fatty liver disease (NAFLD)

NAFLD is a major public health concern characterized by excessive hepatic lipid accumulation in individuals with minimal or no alcohol consumption. It encompasses a spectrum from simple steatosis to non-alcoholic steatohepatitis (NASH), which can progress to fibrosis, cirrhosis, and HCC. The advancement of liver fibrosis is marked by increased vascular growth, as observed in both human and animal models. Recent findings suggest a potential role for VEGF in NAFLD pathogenesis and progression., Notably, VEGF and VEGFR1 mRNA levels are elevated in steatotic livers compared with NASH, indicating an early induction of angiogenesis in NAFLD. However, clinical studies have shown conflicting results regarding VEGF-A and VEGFR alterations in NAFLD progression.,

Hepatocytes play a key role in NAFLD progression by synthesizing VEGF-A, which promotes fibrosis and endothelial dysfunction, contributing to disease severity. In a murine model of diet-induced NASH, VEGFR2 inhibition reduced steatosis and inflammation, highlighting VEGF signaling as a potential therapeutic target. Beyond hepatic angiogenesis, adipose tissue metabolism affects NAFLD development. VEGF-B signaling enhances fatty acid uptake in the liver, driving hepatic steatosis in diabetic models. Additionally, VEGF-B has been identified in the subcutaneous white adipose tissue of NAFLD patients, emphasizing its translational relevance in human disease. Patients with NAFLD also exhibit elevated serum levels of angiogenic markers, including VEGF, sVEGFR1, and sVEGFR2, which correlate with hepatic fibrosis severity and may serve as biomarkers.

Emerging evidence suggests VEGF-C as a therapeutic target for NAFLD, with flavonoid-based interventions showing potential in modulating VEGF-C activity. The interplay between VEGF-A, VEGF-B, and VEGF-C contributes to hepatic lipid accumulation, fibrosis, and carcinogenesis, highlighting VEGF signaling as a critical target for therapeutic strategies in NAFLD.

Immune-related diseases

Immune-related diseases are characterized by dysregulation of the immune system, resulting in inflammation and tissue damage. VEGFs are critical in these conditions by promoting angiogenesis and modulating immune responses.

Rheumatoid arthritis (RA)

RA is a chronic autoimmune disorder characterized by persistent synovial inflammation, leading to joint damage and functional impairment. A key driver of RA progression is angiogenesis, which facilitates inflammatory cell infiltration and pannus formation, accelerating joint destruction. Notably, HIF-1 and HIF-2 are highly expressed in the RA synovium, promoting VEGF production and excessive vascularization, which exacerbate inflammation and synovial hyperplasia.

VEGF-A plays dual roles as both a pro-inflammatory mediator and an angiogenesis promoter within synovial tissue. Synovial macrophages and fibroblasts produce VEGF, while osteoclasts and their precursors express VEGF receptors, forming a complex network that drives disease progression. Elevated serum VEGF levels correlate with c-reactive protein (CRP), highlighting its diagnostic and prognostic value in RA., Furthermore, VEGF supports rheumatoid synoviocyte survival and proliferation through IL-6/JAK2/STAT3 and Notch signaling, reinforcing its role in RA pathogenesis.

Other VEGF family members contribute to RA pathology. VEGF-B deficiency reduces synovial angiogenesis and inflammation, whereas VEGF-C promotes lymphangiogenesis, improving lymphatic drainage and reducing tissue damage. Given the central role of VEGF signaling, targeted therapies such as soluble VEGFRs, anti-VEGF antibodies, and the VEGFR2 inhibitor ramucirumab have shown promise in reducing inflammation and disease severity.– Their efficacy is further enhanced in combination with methotrexate, presenting a potential therapeutic strategy for managing RA.

Psoriasis

Psoriasis is a chronic inflammatory skin disorder that significantly impacts the quality of life. A key but underappreciated factor in its pathogenesis is aberrant angiogenesis, which increases vascular permeability, capillary dilation, and elongation, contributing to epidermal hyperplasia and disease progression., Elevated VEGF-A levels in psoriatic epidermis and plasma promote EC proliferation, migration, and survival while enhancing vasodilation and permeability. VEGF-A also regulates keratinocyte proliferation and differentiation, with VEGFR1, VEGFR2, and NRPs expressed in keratinocytes, indicating autocrine VEGF-A signaling.,

Non-lesional psoriatic skin overexpresses VEGF isoforms such as VEGF-A, VEGFR3, and sNRP1., VEGFR1, VEGFR2, and VEGFR3 are upregulated in psoriatic lesions, while VEGF-C, in conjunction with nerve growth factor (NGF), has been implicated in disease development. Preclinical models highlight the role of VEGF in psoriasis pathogenesis (Fig. 9). Transgenic VEGF delivery induces chronic inflammation with hyperplasia and vascular abnormalities resembling psoriasis. Excess VEGF-A increases vascular density and permeability, exacerbating inflammation. In psoriasis mouse models, anti-VEGF therapies reduce inflammation, normalize epidermal structure, and decrease vascular density and immune infiltration.

Targeting angiogenesis through anti-VEGF therapies holds potential for psoriasis treatment, yet further clinical studies are required to assess their efficacy and safety. A better understanding of the angiogenesis-inflammation interplay may lead to improved therapeutic strategies and better patient outcomes.

Reproductive disorders

Reproductive disorders, a broad spectrum of conditions that affect male and female reproductive health, significantly affect hormone production, gamete formation, and reproductive capacity. VEGFs play a crucial role in the development and maintenance of reproductive tissues, including follicular development, corpus luteum formation, and endometrial vascularization.

Pre-eclampsia (PE)

PE is a significant hypertensive disorder arising after the 20th week of gestation, often accompanied by complications such as proteinuria, maternal organ dysfunction, or uteroplacental dysfunction. A key pathological feature is the disruption of angiogenic balance due to trophoblast dysfunction and incomplete spiral artery remodeling, leading to placental hypoxia, oxidative stress, and endothelial dysfunction.

Endovascular trophoblasts and decidual leukocytes regulate VEGF and PlGF production in normal pregnancies. Free VEGF helps counteract endothelial shear stress and inflammation, maintaining vascular quiescence. However, PE is marked by elevated plasma sVEGFR1 levels before clinical diagnosis. Placental hypoxia triggers VEGF secretion, which in turn increases sVEGFR1 expression, disrupting angiogenic balance. Experimental models confirm that sVEGFR1 infusion induces PE-like features, including hypertension and proteinuria. Similarly, adenoviral sVEGFR1 overexpression reduces VEGF and PlGF, impairing placental and fetal growth. Clinically, placental sVEGFR1 levels are markedly elevated in PE, antagonizing VEGF and PlGF, which leads to systemic endothelial dysfunction. The severity of PE correlates with sVEGFR1 elevation, emphasizing the critical VEGF-sVEGFR1 balance. The sVEGFR1:PlGF ratio serves as a predictive marker for PE risk., Additionally, the sVEGFR1-e15a variant predominates in PE circulation, highlighting its role in disease pathogenesis.

Targeting VEGF and PlGF have been explored in experimental PE models. In sVEGFR1-induced PE, recombinant VEGF-A121 administration lowered blood pressure without affecting proteinuria. Similarly, in the reduced uterine perfusion pressure model (widely used animal model of pre-eclampsia), rhVEGF-A121 and recombinant PlGF reduced sVEGFR1 levels, improved renal function, and mitigated oxidative stress.– Furthermore, adenoviral VEGF expression in hypertensive mouse models decreased blood pressure and proteinuria., Notably, modified VEGF-B conjugated with an elastin-like polypeptide showed therapeutic potential without inducing angiogenesis.

Despite promising results, VEGF-based therapies raise safety concerns. Excess VEGF can cause in utero mortality due to cardiac failure, and its placental transfer remains unclear. The potential fetal risks highlight the need for rigorous safety evaluations before clinical application. Careful translation of VEGF-targeted therapies from preclinical models to clinical practice is essential for effective PE management.

Endometriosis

Endometriosis is a persistent gynecological disorder characterized by the ectopic growth of endometrial-like tissue, primarily in the pelvic region. Its pathogenesis involves endocrine, inflammatory, and pro-angiogenic factors, although their precise role—whether causal or secondary—remains debated. Notably, angiogenesis is a key driver of lesion progression.

VEGF is regulated by multiple signaling pathways, with IL-1β playing a significant role. Normal endometrial stromal cells express VEGF at baseline, but its levels rise in response to estrogen and progesterone., Patients with endometriosis exhibit increased VEGF concentrations in peritoneal fluid and ectopic lesions, fostering a pro-angiogenic environment., VEGFR1/VEGF signaling in macrophages and fibroblasts further promotes lesion growth and lymphangiogenesis.,

Hypoxia plays a crucial role in endometriosis pathogenesis. HIF-1α levels are significantly elevated in ovarian endometriomas, correlating with increased VEGF mRNA expression under hypoxic conditions.– Additionally, VEGF-C and VEGF-D contribute to lymphangiogenesis in endometriotic lesions, as observed in patients undergoing laparoscopic surgery. VEGF-C levels are consistently elevated, with recent findings linking COUP-TFII deficiency in ectopic stromal cells to excessive VEGF-C production. This imbalance enhances immune cell migration and lymphatic vessel formation, driving disease progression.–

Elevated VEGF-A, VEGFR2, and MMP9 levels correlate with lesion development in animal models. Anti-angiogenic therapies such as pazopanib and sorafenib show potential in treating endometriosis. Pazopanib reduces lesion size by at least 45%, while sorafenib more effectively modulates VEGF levels, suggesting distinct therapeutic roles. Given the cyclical regeneration of the endometrium, angiogenesis should remain precisely regulated. Further research is essential to refine targeted interventions while preserving normal reproductive function.

Current anti-VEGF/VEGFR therapies

The development of VEGF-targeting therapies has transformed treatment strategies for angiogenesis-driven diseases. Bevacizumab, a humanized anti-VEGF-A Ab, the first FDA-approved VEGF inhibitor (Table 2), marked a breakthrough in VEGF/VEGFR research. It has shown improved survival in metastatic colorectal cancer and other malignancies., Additionally, decoy receptors such as aflibercept sequester VEGF family members have further enhanced therapeutic efficacy.,

Recent clinical trials continue to highlight the importance of anti-VEGF therapies. For instance, the PAOLA-1 trial (NCT02477644) demonstrated that combining olaparib, a PARP (poly ADP-ribose polymerase) inhibitor targeting DNA damage repair, with bevacizumab provides a significant survival benefit in ovarian cancer patients with homologous recombination deficiency-positive tumors. Similarly, the BEACON CRC trial (NCT02928224) showed that the combination of encorafenib (a BRAF inhibitor specifically targeting the BRAF V600E mutation), cetuximab (an anti-EGFR antibody), and bevacizumab substantially improves overall survival in BRAF-mutated metastatic colorectal cancer. Likewise, the RELAY study (NCT02411448) demonstrated that ramucirumab (anti-VEGFR2 Ab) plus erlotinib (EGFR TKI) significantly improved progression-free survival in EGFR-mutated metastatic non-small cell lung cancer (NSCLC), regardless of baseline mutations or resistance-associated alterations. Liquid biopsy revealed worse outcomes in patients with detectable circulating EGFR mutations, but VEGFR2 inhibition still provided benefits, supporting its role in overcoming EGFR-TKI resistance. The VEGFR inhibition has also demonstrated strong clinical benefits, particularly in HCC. The REACH-2 trial (NCT02435433) validated that ramucirumab provides significant survival benefits in patients with high levels of alpha-fetoprotein, a biomarker commonly used in HCC. Furthermore, combining VEGF inhibition with immune checkpoint and epigenetic regulators has emerged as a promising strategy to enhance VEGF-targeted therapy, potentially offering synergistic benefits. The CAPability-01 trial (NCT04724239) showed that addition of bevacizumab to sintilimab (anti-PD-1 Ab) and chidamide (histone deacetylase inhibitor) significantly improved survival and response rates in microsatellite (MSS)/proficient mismatch repair (pMMR) colorectal cancer, further supporting the rationale for combinatorial treatment strategies.

In ophthalmology, novel anti-VEGF approaches are redefining treatment paradigms. Smaller molecules designed for rapid ocular penetration have revolutionized AMD management. Ranibizumab, a humanized anti-VEGF-A Ab fragment, and brolucizumab, a single-chain anti-VEGF-A Ab, continue to improve retinal disease outcomes., The NORSE-EIGHT clinical trial validated ranibizumab’s superior efficacy over bevacizumab in improving best-corrected visual acuity. Notably, bevacizumab, under the brand name LYTENAVA™, has received regulatory approval for wet AMD treatment in the EU and UK.

Collectively, these advancements in anti-VEGF/VEGFR therapies reinforce their integral role across oncology and ophthalmology. As combination approaches and biomarker-driven treatments continue to emerge, optimizing dosing strategies and overcoming resistance remain key priorities in the field.

Biomarkers for VEGF/VEGFR pathway activity

Identifying biomarkers for VEGF/VEGFR activity is critical for optimizing therapy and predicting patient outcomes. Circulating VEGF levels, sVEGFRs, and Ang2 are commonly studied biomarkers. Elevated VEGF levels correlate with poor prognosis in cancers such as breast and lungs, whereas sVEGFR1 has been linked to pre-eclampsia and various cancers. Ang2 complements VEGF as a marker of vascular instability and disease severity. Additionally, epigenetic markers such as DNA methylation and circulating miRNAs provide minimally invasive tools for monitoring pathway activity.,

Advanced imaging techniques, including VEGF-specific PET tracers, enable real-time assessment of VEGF pathway activity, enhancing treatment precision. Additionally, transcriptomic and proteomic analyses have identified unique biomarker signatures, establishing a foundation for personalized therapy. Ongoing research continues to explore novel biomarkers, aiming to refine therapeutic strategies and improve patient outcomes. Furthermore, microvessel density (MVD) in tumor tissues indirectly reflects VEGF activity and correlates with poor outcomes in cancers such as breast and colorectal cancer., Circulating endothelial progenitor cells (EPCs) also serve as indicators of vascular repair and VEGF activity, with reduced EPC levels linked to impaired angiogenesis in cardiovascular diseases.–

Emerging paradigms in anti-VEGF/VEGFR therapies and innovative strategies

The multifaceted biology of VEGF presents challenges for anti-VEGF/VEGFR therapies. Several mechanisms contribute to their enhanced efficacy: (1) anti-angiogenesis, targeting immature and leaky tumor vasculature to inhibit growth. (2) sensitization to chemotherapy, enhancing the anti-EC effects of low-dose chemotherapy by blocking EC survival. (3) vessel normalization, improving blood flow and enhancing delivery of therapeutics. (4) direct anti-tumor effects, interfering with tumor cell survival. (5) off-tumor benefits, improving cancer-associated systemic syndromes., (6) immune modulation, countering tumor immune privilege by enhancing dendritic cell (DC) differentiation., (7) reduced toxicity, mitigating chemotherapy-induced adverse effects such as bone marrow suppression.

Resistance arises from alternative angiogenic pathways (e.g., FGF2, PDGF), vessel co-option, vasculogenic mimicry, or recruitment of myeloid-derived suppressor cells (MDSCs).– Moreover, tumor heterogeneity and hypoxic/inflammatory microenvironments select resistant clones, necessitating novel approaches. To tackle resistance, combination therapies are actively explored. One strategy pairs anti-VEGF agent with FGF or Ang2 inhibitors. Another integrates anti-VEGF therapies with immune checkpoint inhibitors (ICIs), such as anti-PD-1/PD-L1 therapies, where tumor vessel normalization enhances immune cell infiltration. Consequently, FDA-approved regimens include atezolizumab (anti-PD-L1 Ab) plus bevacizumab for HCC, pembrolizumab (anti-PD-1 Ab) plus axitinib (TKI) for renal cell carcinoma, and atezolizumab (anti-PD-L1 Ab) plus bevacizumab (anti-VEGF-A Ab) with chemotherapy for NSCLC. Yet, efforts persist to optimize patient selection and minimize toxicity.,

Importantly, the theoretical framework for combining anti-VEGF/VEGFR therapies with ICIs involves two key mechanisms: (1) immune modulation, where VEGF inhibition reduces immunosuppression and transforms tumors into a “hot” phenotype more responsive to ICIs,, and (2) vessel normalization, which enhances immune infiltration by improving vascular perfusion. Yet, critical issues remain. Considering the anti-tumor effects observed in immunodeficient models, it remains unclear to what degree VEGF/VEGFR inhibition relies on immunomodulation. Additionally, in “non-angiogenic” tumors resistant to these therapies, can the immunomodulatory benefits of combination therapy provide an advantage? While vessel normalization improves immune infiltration, excessive vascular reduction may impair it, underscoring the need to balance normalization with maintaining adequate vascular density. Moreover, unraveling the interplay between TME dynamics and VEGF signaling could unlock new strategies to overcome these limitations (Fig. 10).

To address these challenges, proteolysis-targeting chimeras (PROTACs) have emerged as a novel modality. Additionally, antibody-drug conjugates (ADC) targeting VEGF-VEGFR pathways represent another promising modality, combining precise targeting of angiogenic signaling with the delivery of cytotoxic agents to inhibit tumor growth and angiogenesis. Concurrently, artificial intelligence (AI) is revolutionizing drug discovery by identifying dual-target VEGFR inhibitors with greater precision. Coupled with genomic and transcriptomic profiling, AI provides critical insights into oncogenic pathways, enabling biomarker development and rational combination therapies. Despite progress, toxicity and biomarker gaps hinder adoption, necessitating refined patient selection. These advances signal a shift toward personalized, multi-modal approaches, tackling resistance and expanding therapeutic horizons.

Conclusion and perspective

The VEGF/VEGFR signaling pathway remains central to angiogenesis, lymphangiogenesis, and vascular remodeling, affecting diverse physiological and pathological processes. Over the past few decades, the development of VEGF-targeted therapies has transformed the treatment landscape for cancer, ocular diseases, and inflammatory disorders. Monoclonal antibodies, tyrosine kinase inhibitors, and VEGF-trap fusion proteins have significantly improved patient survival and quality of life. However, therapeutic resistance, systemic toxicities, and limitations in predictive biomarkers continue to present challenges.

One of the major challenges in anti-VEGF therapy is the emergence of compensatory pro-angiogenic pathways. The upregulation of FGF2, Ang, and the induction of vasculogenic mimicry - where tumor cells adopt endothelial-like characteristics - contribute to tumor escape from VEGF inhibition. Similarly, VEGF-C and VEGF-D-mediated lymphangiogenesis facilitates cancer progression and metastasis, emphasizing the need for combinatorial targeting strategies. In wet AMD and DR, VEGF-C/D upregulation has been implicated in resistance to anti-VEGF-A monotherapies. The ongoing development of VEGF-C/D inhibitors, such as OPT-302, represents a promising approach to overcoming this resistance.

The role of VEGFs extends beyond angiogenesis, impacting fibrosis, metabolic syndromes, and neurodegeneration. VEGF-B, traditionally considered minimally angiogenic, has emerged as a critical player in neuroprotection, with potential implications for neurodegenerative disorders such as Alzheimer’s disease., In addition, VEGF signaling contributes to endothelial dysfunction in diabetes and cardiovascular disease, highlighting its potential as a therapeutic target in metabolic disorders. Moreover, recent findings show VEGF-B inhibits angiogenesis by suppressing FGF2/FGFR1 signaling and forming VEGFR1/FGFR1 complexes that block ERK activation. This raises concerns about therapies including aflibercept, which targets both VEGF-A and VEGF-B, as blocking VEGF-B may disrupt its regulatory function in pathological angiogenesis.

Advancements in precision medicine have introduced new opportunities for optimizing VEGF-targeted therapies. AI-driven biomarker identification and spatial transcriptomics hold promises for improving patient stratification and treatment personalization. However, the standardization of predictive biomarkers remains a challenge due to tumor heterogeneity and the dynamic nature of VEGF signaling. For instance, VEGF-A+ fibroblasts have been proposed as a biomarker in HCC, yet their clinical validation across diverse patient cohorts is still lacking. Future efforts should focus on refining biomarker discovery approaches to enhance their clinical utility. Additionally, identifying non-invasive biomarkers, such as circulating exosomal VEGF or imaging-based vascular signatures, could improve real-time monitoring of treatment responses.

To address systemic toxicities associated with VEGF inhibition, emerging drug modalities offer alternative solutions. Long-acting gene therapy, nanoparticle-encapsulated siRNA, and CRISPR-based VEGF modulation represent promising strategies to mitigate hypertension, proteinuria, and impaired wound healing. Additionally, newer modalities such as bi-specific antibodies (e.g., faricimab, targeting both VEGF and Ang2) and VEGF-trap fusion proteins (e.g., conbercept in ocular diseases) provide enhanced specificity and efficacy. Recent advances in ADCs and PROTACs have further expanded the landscape of VEGF-related interventions, enabling more selective and potent therapeutic strategies. These approaches warrant further clinical exploration to determine their safety, efficacy, and long-term benefits.

Furthermore, research into the interplay between VEGF and other angiogenic factors is essential for refining combination therapies. Dual inhibition of VEGF and HIF-1α has shown promise in overcoming hypoxia-induced resistance, while VEGF and PDGFRβ co-targeting strategies aim to enhance vascular normalization and drug delivery in tumors., Additionally, integrating VEGF-targeted approaches with ICIs continues to gain momentum, particularly in cancers with immunosuppressive microenvironments. A deeper mechanistic understanding of these interactions will be critical for optimizing treatment regimens and improving patient outcomes.

Future research should also explore the impact of VEGF inhibition in aging and regenerative medicine. As the aging population grows, understanding the consequences of long-term VEGF suppression on vascular integrity, wound healing, and neurovascular health is crucial. VEGF plays a pivotal role in tissue repair and homeostasis, and prolonged inhibition may contribute to frailty, cognitive decline, and impaired organ regeneration. Balancing VEGF suppression for disease treatment while preserving its physiological functions will be essential for minimizing unintended side effects.

Additionally, continued investigation into the role of VEGFs in inflammatory and autoimmune diseases is warranted. VEGF has been implicated in conditions such as RA, psoriasis, and multiple sclerosis, where its modulation could provide therapeutic benefits. Exploring VEGF-targeting strategies in these diseases could expand the clinical applications of anti-angiogenic therapies beyond oncology and ophthalmology. Furthermore, understanding the interplay between VEGF signaling and the gut microbiome may offer novel insights into angiogenesis-related metabolic disorders, paving the way for innovative treatment approaches.

In conclusion, VEGF-targeted therapies have fundamentally reshaped disease management. However, their future success depends on overcoming resistance, enhancing treatment precision, and exploring novel applications beyond angiogenesis. Continued investigation into VEGF signaling complexity, combined with cutting-edge technological innovations, will be essential in maintaining VEGF inhibitors as a cornerstone of therapeutic intervention. As these efforts progress, VEGF-targeted therapies will continue to hold transformative potential across cancer, ocular diseases, and other fields, offering new hope to patients.

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    Not in our library10.1186/1476-4598-9-320

  77. 77.

    Nowak DG, et al. Expression of pro- and anti-angiogenic isoforms of VEGF is differentially regulated by splicing and growth factors. J. Cell. Sci. 2008;121:3487-3495.

    Not in our library10.1242/jcs.016410

  78. 78.

    Harris S, et al. Do anti-angiogenic VEGF (VEGFxxxb) isoforms exist? A cautionary tale. PLoS ONE. 2012;7:e35231.

    Not in our library10.1371/journal.pone.0035231

  79. 79.

    Lomet D, Piégu B, Wood SH, Dardente H. Anti-angiogenic VEGFAxxxb transcripts are not expressed in the medio-basal hypothalamus of the seasonal sheep. PLoS ONE. 2018;13:e0197123.

    Not in our library10.1371/journal.pone.0197123

  80. 80.

    Bridgett S, Dellett M, Simpson DA. RNA-sequencing data supports the existence of novel VEGFA splicing events but not of VEGFA(xxx)b isoforms. Sci. Rep. 2017;7:58.

    Not in our library10.1038/s41598-017-00100-3

  81. 81.

    Qiu Y, Hoareau-Aveilla C, Oltean S, Harper SJ, Bates DO. The anti-angiogenic isoforms of VEGF in health and disease. Biochem. Soc. Trans. 2009;37:1207-1213.

    Not in our library10.1042/bst0371207

  82. 82.

    Kikuchi R, et al. An antiangiogenic isoform of VEGF-A contributes to impaired vascularization in peripheral artery disease. Nat. Med. 2014;20:1464-1471.

    Not in our library10.1038/nm.3703

  83. 83.

    Maglione D, Guerriero V, Viglietto G, Delli-Bovi P, Persico MG. Isolation of a human placenta cDNA coding for a protein related to the vascular permeability factor. Proc. Natl. Acad. Sci. USA. 1991;88:9267-9271.

    Not in our library10.1073/pnas.88.20.9267

  84. 84.

    Carmeliet P, Jain RK. Molecular mechanisms and clinical applications of angiogenesis. Nature. 2011;473:298-307.

    Not in our library10.1038/nature10144

  85. 85.

    Hauser S, Weich HA. A heparin-binding form of placenta growth factor (PlGF-2) is expressed in human umbilical vein endothelial cells and in placenta. Growth Factors. 1993;9:259-268.

    Not in our library10.3109/08977199308991586

  86. 86.

    Cao Y, Ji WR, Qi P, Rosin A, Cao Y. Placenta growth factor: identification and characterization of a novel isoform generated by RNA alternative splicing. Biochem. Biophys. Res. Commun. 1997;235:493-498.

    Not in our library10.1006/bbrc.1997.6813

  87. 87.

    Carmeliet P, et al. Synergism between vascular endothelial growth factor and placental growth factor contributes to angiogenesis and plasma extravasation in pathological conditions. Nat. Med. 2001;7:575-583.

    Not in our library10.1038/87904

  88. 88.

    Cao Y, et al. Heterodimers of placenta growth factor/vascular endothelial growth factor. Endothelial activity, tumor cell expression, and high affinity binding to Flk-1/KDR. J. Biol. Chem. 1996;271:3154-3162.

    Not in our library10.1074/jbc.271.6.3154

  89. 89.

    Hoffmann DC, et al. Proteolytic processing regulates placental growth factor activities. J. Biol. Chem. 2013;288:17976-17989.

    Not in our library10.1074/jbc.m113.451831

  90. 90.

    Yang W, Ahn H, Hinrichs M, Torry RJ, Torry DS. Evidence of a novel isoform of placenta growth factor (PlGF-4) expressed in human trophoblast and endothelial cells. J. Reprod. Immunol. 2003;60:53-60.

    Not in our library10.1016/s0165-0378(03)00082-2

  91. 91.

    Dewerchin M, Carmeliet P. Placental growth factor in cancer. Expert Opin. Ther. Targets. 2014;18:1339-1354.

    Not in our library10.1517/14728222.2014.948420

  92. 92.

    Mac Gabhann F, Popel AS. Model of competitive binding of vascular endothelial growth factor and placental growth factor to VEGF receptors on endothelial cells. Am. J. Physiol. Heart Circ. Physiol. 2004;286:H153-H164.

    Not in our library10.1152/ajpheart.00254.2003

  93. 93.

    Shibuya M, et al. Nucleotide sequence and expression of a novel human receptor-type tyrosine kinase gene (flt) closely related to the fms family. Oncogene. 1990;5:519-524.

    Not in our library

  94. 94.

    Kendall RL, Thomas KA. Inhibition of vascular endothelial cell growth factor activity by an endogenously encoded soluble receptor. Proc. Natl. Acad. Sci. USA. 1993;90:10705-10709.

    Not in our library10.1073/pnas.90.22.10705

  95. 95.
  96. 96.

    Tanaka K, Yamaguchi S, Sawano A, Shibuya M. Characterization of the extracellular domain in vascular endothelial growth factor receptor-1 (Flt-1 tyrosine kinase). Jpn. J. Cancer Res. 1997;88:867-876.

    Not in our library10.1111/j.1349-7006.1997.tb00463.x

  97. 97.

    Shaik F, et al. Structural basis for vascular endothelial growth factor receptor activation and implications for disease therapy. Biomolecules. 2020;10:1673.

    Not in our library10.3390/biom10121673

  98. 98.

    Stuttfeld E, Ballmer-Hofer K. Structure and function of VEGF receptors. IUBMB Life. 2009;61:915-922.

    Not in our library10.1002/iub.234

  99. 99.

    Markovic-Mueller S. Structure of the full-length VEGFR-1 extracellular domain in complex with VEGFA. Structure. 2017;25:341-352.

    Not in our library10.1016/j.str.2016.12.012

  100. 100.

    Olsson AK, Dimberg A, Kreuger J, Claesson-Welsh L. VEGF receptor signalling - in control of vascular function. Nat. Rev. Mol. Cell Biol. 2006;7:359-371.

    Not in our library10.1038/nrm1911

  101. 101.

    Ferrara N, Gerber HP, LeCouter J. The biology of VEGF and its receptors. Nat. Med. 2003;9:669-676.

    Not in our library10.1038/nm0603-669

  102. 102.

    Chakraborty MP, et al. Molecular basis of VEGFR1 autoinhibition at the plasma membrane. Nat. Commun. 2024;15:1346.

    Not in our library10.1038/s41467-024-45499-2

  103. 103.

    Meyer RD, Mohammadi M, Rahimi N. A single amino acid substitution in the activation loop defines the decoy characteristic of VEGFR-1/FLT-1. J. Biol. Chem. 2006;281:867-875.

    Not in our library10.1074/jbc.m506454200

  104. 104.

    Rahimi N. VEGFR-1 and VEGFR-2: two non-identical twins with a unique physiognomy. Front. Biosci. 2006;11:818-829.

    Not in our library10.2741/1839

  105. 105.

    Wazan LE, Widhibrata A, Liu GS. Soluble FLT-1 in angiogenesis: pathophysiological roles and therapeutic implications. Angiogenesis. 2024;27:641-661.

    Not in our library10.1007/s10456-024-09942-8

  106. 106.

    Hornig C, et al. Release and complex formation of soluble VEGFR-1 from endothelial cells and biological fluids. Lab. Invest. 2000;80:443-454.

    Not in our library10.1038/labinvest.3780050

  107. 107.

    Thomas CP, Raikwar NS, Kelley EA, Liu KZ. Alternate processing of Flt1 transcripts is directed by conserved cis-elements within an intronic region of FLT1 that reciprocally regulates splicing and polyadenylation. Nucleic Acids Res. 2010;38:5130-5140.

    Not in our library10.1093/nar/gkq198

  108. 108.

    Abou Faycal C, Gazzeri S, Eymin B. A VEGF-A/SOX2/SRSF2 network controls VEGFR1 pre-mRNA alternative splicing in lung carcinoma cells. Sci. Rep. 2019;9:336.

    Not in our library10.1038/s41598-018-36728-y

  109. 109.

    Heydarian M, et al. Novel splice variants of sFlt1 are upregulated in preeclampsia. Placenta. 2009;30:250-255.

    Not in our library10.1016/j.placenta.2008.12.010

  110. 110.

    Terman BI, et al. Identification of a new endothelial cell growth factor receptor tyrosine kinase. Oncogene. 1991;6:1677-1683.

    Not in our library

  111. 111.

    Millauer B, et al. High affinity VEGF binding and developmental expression suggest Flk-1 as a major regulator of vasculogenesis and angiogenesis. Cell. 1993;72:835-846.

    Not in our library10.1016/0092-8674(93)90573-9

  112. 112.

    Matthews W, et al. A receptor tyrosine kinase cDNA isolated from a population of enriched primitive hematopoietic cells and exhibiting close genetic linkage to c-kit. Proc. Natl. Acad. Sci. USA. 1991;88:9026-9030.

    Not in our library10.1073/pnas.88.20.9026

  113. 113.

    Brozzo MS, et al. Thermodynamic and structural description of allosterically regulated VEGFR-2 dimerization. Blood. 2012;119:1781-1788.

    Not in our library10.1182/blood-2011-11-390922

  114. 114.
  115. 115.

    Shinkai A, et al. Mapping of the sites involved in ligand association and dissociation at the extracellular domain of the kinase insert domain-containing receptor for vascular endothelial growth factor. J. Biol. Chem. 1998;273:31283-31288.

    Not in our library10.1074/jbc.273.47.31283

  116. 116.

    Hyde CA, et al. Targeting extracellular domains D4 and D7 of vascular endothelial growth factor receptor 2 reveals allosteric receptor regulatory sites. Mol. Cell. Biol. 2012;32:3802-3813.

    Not in our library10.1128/mcb.06787-11

  117. 117.

    King C, Wirth D, Workman S, Hristova K. Cooperative interactions between VEGFR2 extracellular Ig-like subdomains ensure VEGFR2 dimerization. Biochim. Biophys. Acta Gen. Subj. 2017;1861:2559-2567.

    Not in our library10.1016/j.bbagen.2017.08.021

  118. 118.

    Mineev KS, et al. NMR-based approach to measure the free energy of transmembrane helix-helix interactions. Biochim. Biophys. Acta. 2014;1838:164-172.

    Not in our library10.1016/j.bbamem.2013.08.021

  119. 119.

    Dosch DD, Ballmer-Hofer K. Transmembrane domain-mediated orientation of receptor monomers in active VEGFR-2 dimers. FASEB J. 2010;24:32-38.

    Not in our library10.1096/fj.09-132670

  120. 120.

    Parast CV, et al. Characterization and kinetic mechanism of catalytic domain of human vascular endothelial growth factor receptor-2 tyrosine kinase (VEGFR2 TK), a key enzyme in angiogenesis. Biochemistry. 1998;37:16788-16801.

    Not in our library10.1021/bi981291f

  121. 121.

    Koch S, Tugues S, Li X, Gualandi L, Claesson-Welsh L. Signal transduction by vascular endothelial growth factor receptors. Biochem. J. 2011;437:169-183.

    Not in our library10.1042/bj20110301

  122. 122.

    Meyer RD, Dayanir V, Majnoun F, Rahimi N. The presence of a single tyrosine residue at the carboxyl domain of vascular endothelial growth factor receptor-2/FLK-1 regulates its autophosphorylation and activation of signaling molecules. J. Biol. Chem. 2002;277:27081-27087.

    Not in our library10.1074/jbc.m110544200

  123. 123.

    Manni S, Kisko K, Schleier T, Missimer J, Ballmer-Hofer K. Functional and structural characterization of the kinase insert and the carboxy terminal domain in VEGF receptor 2 activation. FASEB J. 2014;28:4914-4923.

    Not in our library10.1096/fj.14-256206

  124. 124.

    Leppänen VM, et al. Structural and mechanistic insights into VEGF receptor 3 ligand binding and activation. Proc. Natl. Acad. Sci. USA. 2013;110:12960-12965.

    Not in our library10.1073/pnas.1301415110

  125. 125.

    Wang J, et al. Pathway-related molecules of VEGFC/D-VEGFR3/NRP2 axis in tumor lymphangiogenesis and lymphatic metastasis. Clin. Chim. Acta. 2016;461:165-171.

    Not in our library10.1016/j.cca.2016.08.008

  126. 126.

    Domigan CK, Ziyad S, Iruela-Arispe ML. Canonical and noncanonical vascular endothelial growth factor pathways: new developments in biology and signal transduction. Arterioscler. Thromb. Vasc. Biol. 2015;35:30-39.

    Not in our library10.1161/atvbaha.114.303215

  127. 127.

    King C, Hristova K. Direct measurements of VEGF–VEGFR2 binding affinities reveal the coupling between ligand binding and receptor dimerization. J. Biol. Chem. 2019;294:9064-9075.

    Not in our library10.1074/jbc.ra119.007737

  128. 128.

    Mac Gabhann F, Popel AS. Dimerization of VEGF receptors and implications for signal transduction: a computational study. Biophys. Chem. 2007;128:125-139.

    Not in our library10.1016/j.bpc.2007.03.010

  129. 129.
  130. 130.

    Cudmore MJ, et al. The role of heterodimerization between VEGFR-1 and VEGFR-2 in the regulation of endothelial cell homeostasis. Nat. Commun. 2012;3:972.

    Not in our library10.1038/ncomms1977

  131. 131.

    Dixelius J, et al. Ligand-induced vascular endothelial growth factor receptor-3 (VEGFR-3) heterodimerization with VEGFR-2 in primary lymphatic endothelial cells regulates tyrosine phosphorylation sites. J. Biol. Chem. 2003;278:40973-40979.

    Not in our library10.1074/jbc.m304499200

  132. 132.

    Nilsson I, et al. VEGF receptor 2/-3 heterodimers detected in situ by proximity ligation on angiogenic sprouts. EMBO J. 2010;29:1377-1388.

    Not in our library10.1038/emboj.2010.30

  133. 133.

    Sarkar J, et al. VEGF receptor heterodimers and homodimers are differentially expressed in neuronal and endothelial cell types. PLoS ONE. 2022;17:e0269818.

    Not in our library10.1371/journal.pone.0269818

  134. 134.

    Fuh G, Garcia KC, de Vos AM. The interaction of neuropilin-1 with vascular endothelial growth factor and its receptor flt-1. J. Biol. Chem. 2000;275:26690-26695.

    Not in our library10.1016/s0021-9258(19)61431-6

  135. 135.

    Gluzman-Poltorak Z, Cohen T, Shibuya M, Neufeld G. Vascular endothelial growth factor receptor-1 and neuropilin-2 form complexes. J. Biol. Chem. 2001;276:18688-18694.

    Not in our library10.1074/jbc.m006909200

  136. 136.

    Orecchia A, et al. Vascular endothelial growth factor receptor-1 is deposited in the extracellular matrix by endothelial cells and is a ligand for the alpha 5 beta 1 integrin. J. Cell. Sci. 2003;116:3479-3489.

    Not in our library10.1242/jcs.00673

  137. 137.

    Lee C, et al. VEGF-B prevents excessive angiogenesis by inhibiting FGF2/FGFR1 pathway. Signal Transduct. Target. Ther. 2023;8:305.

    Not in our library10.1038/s41392-023-01539-9

  138. 138.

    Zachary I. Neuropilins: role in signalling, angiogenesis and disease. Chem. Immunol. Allergy. 2014;99:37-70.

    Not in our library10.1159/000354169

  139. 139.

    Koch S, et al. NRP1 presented in trans to the endothelium arrests VEGFR2 endocytosis, preventing angiogenic signaling and tumor initiation. Dev. Cell. 2014;28:633-646.

    Not in our library10.1016/j.devcel.2014.02.010

  140. 140.

    Soker S, Miao HQ, Nomi M, Takashima S, Klagsbrun M. VEGF165 mediates formation of complexes containing VEGFR-2 and neuropilin-1 that enhance VEGF165-receptor binding. J. Cell. Biochem. 2002;85:357-368.

    Not in our library10.1002/jcb.10140

  141. 141.

    Gutiérrez-González A, et al. α4β1 integrin associates with VEGFR2 in CLL cells and contributes to VEGF binding and intracellular signaling. Blood Adv. 2019;3:2144-2148.

    Not in our library10.1182/bloodadvances.2019000019

  142. 142.

    Greenberg JI, et al. A role for VEGF as a negative regulator of pericyte function and vessel maturation. Nature. 2008;456:809-813.

    Not in our library10.1038/nature07424

  143. 143.

    Paul MD, Hristova K. Interactions between Ligand-Bound EGFR and VEGFR2. J. Mol. Biol. 2021;433:167006.

    Not in our library10.1016/j.jmb.2021.167006

  144. 144.

    Tremmel M, et al. A CD44v6 peptide reveals a role of CD44 in VEGFR-2 signaling and angiogenesis. Blood. 2009;114:5236-5244.

    Not in our library10.1182/blood-2009-04-219204

  145. 145.

    Chen Q, et al. Possible role of EphA4 and VEGFR2 interactions in neural stem and progenitor cell differentiation. Exp. Ther. Med. 2020;19:1789-1796.

    Not in our library10.3892/etm.2020.8419

  146. 146.

    Lampugnani MG, Orsenigo F, Gagliani MC, Tacchetti C, Dejana E. Vascular endothelial cadherin controls VEGFR-2 internalization and signaling from intracellular compartments. J. Cell Biol. 2006;174:593-604.

    Not in our library10.1083/jcb.200602080

  147. 147.

    Lu KV, et al. VEGF inhibits tumor cell invasion and mesenchymal transition through a MET/VEGFR2 complex. Cancer Cell. 2012;22:21-35.

    Not in our library10.1016/j.ccr.2012.05.037

  148. 148.

    Favier B, et al. Neuropilin-2 interacts with VEGFR-2 and VEGFR-3 and promotes human endothelial cell survival and migration. Blood. 2006;108:1243-1250.

    Not in our library10.1182/blood-2005-11-4447

  149. 149.

    Soker S, Takashima S, Miao HQ, Neufeld G, Klagsbrun M. Neuropilin-1 is expressed by endothelial and tumor cells as an isoform-specific receptor for vascular endothelial growth factor. Cell. 1998;92:735-745.

    Not in our library10.1016/s0092-8674(00)81402-6

  150. 150.

    Nakamura F, Goshima Y. Structural and functional relation of neuropilins. Adv. Exp. Med. Biol. 2002;515:55-69.

    Not in our library10.1007/978-1-4615-0119-0_5

  151. 151.

    Prahst C, et al. Neuropilin-1-VEGFR-2 complexing requires the PDZ-binding domain of neuropilin-1. J. Biol. Chem. 2008;283:25110-25114.

    Not in our library10.1074/jbc.c800137200

  152. 152.

    Parker MW, et al. Structural basis for VEGF-C binding to neuropilin-2 and sequestration by a soluble splice form. Structure. 2015;23:677-687.

    Not in our library10.1016/j.str.2015.01.018

  153. 153.

    Cunningham SA, Stephan CC, Arrate MP, Ayer KG, Brock TA. Identification of the extracellular domains of Flt-1 that mediate ligand interactions. Biochem. Biophys. Res. Commun. 1997;231:596-599.

    Not in our library10.1006/bbrc.1997.6156

  154. 154.

    Ahmad S, et al. Direct evidence for endothelial vascular endothelial growth factor receptor-1 function in nitric oxide-mediated angiogenesis. Circ. Res. 2006;99:715-722.

    Not in our library10.1161/01.res.0000243989.46006.b9

  155. 155.

    Sawano A, Takahashi T, Yamaguchi S, Shibuya M. The phosphorylated 1169-tyrosine containing region of flt-1 kinase (VEGFR-1) is a major binding site for PLCγ. Biochem. Biophys. Res. Commun. 1997;238:487-491.

    Not in our library10.1006/bbrc.1997.7327

  156. 156.

    Ito N, Wernstedt C, Engström U, Claesson-Welsh L. Identification of vascular endothelial growth factor receptor-1 tyrosine phosphorylation sites and binding of SH2 domain-containing molecules. J. Biol. Chem. 1998;273:23410-23418.

    Not in our library10.1074/jbc.273.36.23410

  157. 157.

    Yu Y, et al. Direct identification of a major autophosphorylation site on vascular endothelial growth factor receptor Flt-1 that mediates phosphatidylinositol 3’-kinase binding. Biochem. J. 2001;358:465-472.

    Not in our library10.1042/bj3580465

  158. 158.

    Ito N, Huang K, Claesson-Welsh L. Signal transduction by VEGF receptor-1 wild type and mutant proteins. Cell. Signal. 2001;13:849-854.

    Not in our library10.1016/s0898-6568(01)00209-1

  159. 159.

    Ganta VC, Choi M, Kutateladze A, Annex BH. VEGF165b modulates endothelial VEGFR1-STAT3 signaling pathway and angiogenesis in human and experimental peripheral arterial disease. Circ. Res. 2017;120:282-295.

    Not in our library10.1161/circresaha.116.309516

  160. 160.

    Scotney PD, et al. Human vascular endothelial growth factor B: characterization of recombinant isoforms and generation of neutralizing monoclonal antibodies. Clin. Exp. Pharmacol. Physiol. 2002;29:1024-1029.

    Not in our library10.1046/j.1440-1681.2002.03769.x

  161. 161.

    Singh NK, Hansen DE, Kundumani-Sridharan V, Rao GN. Both Kdr and Flt1 play a vital role in hypoxia-induced Src-PLD1-PKCγ-cPLA(2) activation and retinal neovascularization. Blood. 2013;121:1911-1923.

    Not in our library10.1182/blood-2012-03-419234

  162. 162.

    Autiero M, et al. Role of PlGF in the intra- and intermolecular cross talk between the VEGF receptors Flt1 and Flk1. Nat. Med. 2003;9:936-943.

    Not in our library10.1038/nm884

  163. 163.

    Ahmad S, Ahmed A. Antiangiogenic effect of soluble vascular endothelial growth factor receptor-1 in placental angiogenesis. Endothelium. 2005;12:89-95.

    Not in our library10.1080/10623320590933888

  164. 164.

    Saito T, et al. VEGF-A induces its negative regulator, soluble form of VEGFR-1, by modulating its alternative splicing. FEBS Lett. 2013;587:2179-2185.

    Not in our library10.1016/j.febslet.2013.05.038

  165. 165.

    Abou Faycal C, et al. The sVEGFR1-i13 splice variant regulates a β1 integrin/VEGFR autocrine loop involved in the progression and the response to anti-angiogenic therapies of squamous cell lung carcinoma. Br. J. Cancer. 2018;118:1596-1608.

    Not in our library10.1038/s41416-018-0128-4

  166. 166.

    Jin J, et al. Soluble FLT1 binds lipid microdomains in podocytes to control cell morphology and glomerular barrier function. Cell. 2012;151:384-399.

    Not in our library10.1016/j.cell.2012.08.037

  167. 167.

    da Rocha-Azevedo B, et al. Heterogeneity in VEGF receptor-2 mobility and organization on the endothelial cell surface leads to diverse models of activation by VEGF. Cell Rep. 2020;32:108187.

    Not in our library10.1016/j.celrep.2020.108187

  168. 168.

    Corsini M, Ravelli C, Grillo E, Domenichini M, Mitola S. Mutation in the kinase domain alters the VEGFR2 membrane dynamics. Cells. 2024;13:1346.

    Not in our library10.3390/cells13161346

  169. 169.

    Matsumoto T, et al. VEGF receptor-2 Y951 signaling and a role for the adapter molecule TSAd in tumor angiogenesis. EMBO J. 2005;24:2342-2353.

    Not in our library10.1038/sj.emboj.7600709

  170. 170.

    Caron C, et al. Non-redundant roles of the Gab1 and Gab2 scaffolding adapters in VEGF-mediated signalling, migration, and survival of endothelial cells. Cell. Signal. 2009;21:943-953.

    Not in our library10.1016/j.cellsig.2009.02.004

  171. 171.
  172. 172.

    Dougher M, Terman BI. Autophosphorylation of KDR in the kinase domain is required for maximal VEGF-stimulated kinase activity and receptor internalization. Oncogene. 1999;18:1619-1627.

    Not in our library10.1038/sj.onc.1202478

  173. 173.

    Holmqvist K, et al. The adaptor protein shb binds to tyrosine 1175 in vascular endothelial growth factor (VEGF) receptor-2 and regulates VEGF-dependent cellular migration. J. Biol. Chem. 2004;279:22267-22275.

    Not in our library10.1074/jbc.m312729200

  174. 174.

    Warner AJ, Lopez-Dee J, Knight EL, Feramisco JR, Prigent SA. The Shc-related adaptor protein, Sck, forms a complex with the vascular-endothelial-growth-factor receptor KDR in transfected cells. Biochem. J. 2000;347:501-509.

    Not in our library10.1042/bj3470501

  175. 175.

    Sjöberg E, et al. Endothelial VEGFR2-PLCγ signaling regulates vascular permeability and antitumor immunity through eNOS/Src. J. Clin. Invest. 2023;133:e161366.

    Not in our library10.1172/jci161366

  176. 176.

    Lamalice L, Houle F, Jourdan G, Huot J. Phosphorylation of tyrosine 1214 on VEGFR2 is required for VEGF-induced activation of Cdc42 upstream of SAPK2/p38. Oncogene. 2004;23:434-445.

    Not in our library10.1038/sj.onc.1207034

  177. 177.

    Lamalice L, Houle F, Huot J. Phosphorylation of Tyr1214 within VEGFR-2 triggers the recruitment of Nck and activation of Fyn leading to SAPK2/p38 activation and endothelial cell migration in response to VEGF. J. Biol. Chem. 2006;281:34009-34020.

    Not in our library10.1074/jbc.m603928200

  178. 178.

    Testini C, et al. Myc-dependent endothelial proliferation is controlled by phosphotyrosine 1212 in VEGF receptor-2. EMBO Rep. 2019;20:e47845.

    Not in our library10.15252/embr.201947845

  179. 179.

    Meyer RD, et al. PEST motif serine and tyrosine phosphorylation controls vascular endothelial growth factor receptor 2 stability and downregulation. Mol. Cell. Biol. 2011;31:2010-2025.

    Not in our library10.1128/mcb.01006-10

  180. 180.

    Rahimi N, Costello CE. Emerging roles of post-translational modifications in signal transduction and angiogenesis. Proteomics. 2015;15:300-309.

    Not in our library10.1002/pmic.201400183

  181. 181.

    Salameh A, Galvagni F, Bardelli M, Bussolino F, Oliviero S. Direct recruitment of CRK and GRB2 to VEGFR-3 induces proliferation, migration, and survival of endothelial cells through the activation of ERK, AKT, and JNK pathways. Blood. 2005;106:3423-3431.

    Not in our library10.1182/blood-2005-04-1388

  182. 182.

    Fournier E, Dubreuil P, Birnbaum D, Borg JP. Mutation at tyrosine residue 1337 abrogates ligand-dependent transforming capacity of the FLT4 receptor. Oncogene. 1995;11:921-931.

    Not in our library

  183. 183.

    Karkkainen MJ, et al. Missense mutations interfere with VEGFR-3 signalling in primary lymphoedema. Nat. Genet. 2000;25:153-159.

    Not in our library10.1038/75997

  184. 184.

    Teesalu T, Sugahara KN, Kotamraju VR, Ruoslahti E. C-end rule peptides mediate neuropilin-1-dependent cell, vascular, and tissue penetration. Proc. Natl. Acad. Sci. USA. 2009;106:16157-16162.

    Not in our library10.1073/pnas.0908201106

  185. 185.

    Parker MW, Xu P, Li X, Vander Kooi CW. Structural basis for selective vascular endothelial growth factor-A (VEGF-A) binding to neuropilin-1. J. Biol. Chem. 2012;287:11082-11089.

    Not in our library10.1074/jbc.m111.331140

  186. 186.
  187. 187.

    Klagsbrun M, Takashima S, Mamluk R. The role of neuropilin in vascular and tumor biology. Adv. Exp. Med. Biol. 2002;515:33-48.

    Not in our library10.1007/978-1-4615-0119-0_3

  188. 188.

    Wang L, Zeng H, Wang P, Soker S, Mukhopadhyay D. Neuropilin-1-mediated vascular permeability factor/vascular endothelial growth factor-dependent endothelial cell migration. J. Biol. Chem. 2003;278:48848-48860.

    Not in our library10.1074/jbc.m310047200

  189. 189.

    Fantin A, et al. VEGF165-induced vascular permeability requires NRP1 for ABL-mediated SRC family kinase activation. J. Exp. Med. 2017;214:1049-1064.

    Not in our library10.1084/jem.20160311

  190. 190.

    Kärpänen T, et al. Functional interaction of VEGF-C and VEGF-D with neuropilin receptors. FASEB J. 2006;20:1462-1472.

    Not in our library10.1096/fj.05-5646com

  191. 191.

    Zeng Y, Opeskin K, Goad J, Williams ED. Tumor-induced activation of lymphatic endothelial cells via vascular endothelial growth factor receptor-2 is critical for prostate cancer lymphatic metastasis. Cancer Res. 2006;66:9566-9575.

    Not in our library10.1158/0008-5472.can-06-1488

  192. 192.
  193. 193.

    Papapetropoulos A, et al. Direct actions of angiopoietin-1 on human endothelium: evidence for network stabilization, cell survival, and interaction with other angiogenic growth factors. Lab. Investig. 1999;79:213-223.

    Not in our library

  194. 194.

    London NR, Whitehead KJ, Li DY. Endogenous endothelial cell signaling systems maintain vascular stability. Angiogenesis. 2009;12:149-158.

    Not in our library10.1007/s10456-009-9130-z

  195. 195.

    Nicolini G, Forini F, Kusmic C, Iervasi G, Balzan S. Angiopoietin 2 signal complexity in cardiovascular disease and cancer. Life Sci. 2019;239:117080.

    Not in our library10.1016/j.lfs.2019.117080

  196. 196.

    Nguyen QD, et al. The Tie2 signaling pathway in retinal vascular diseases: a novel therapeutic target in the eye. Int. J. Retin. Vitreous. 2020;6:48.

    Not in our library10.1186/s40942-020-00250-z

  197. 197.

    Tsiamis AC, Morris PN, Marron MB, Brindle NP. Vascular endothelial growth factor modulates the Tie-2:Tie-1 receptor complex. Microvasc. Res. 2002;63:149-158.

    Not in our library10.1006/mvre.2001.2377

  198. 198.

    Winderlich M, et al. VE-PTP controls blood vessel development by balancing Tie-2 activity. J. Cell Biol. 2009;185:657-671.

    Not in our library10.1083/jcb.200811159

  199. 199.

    Frye M, et al. Interfering with VE-PTP stabilizes endothelial junctions in vivo via Tie-2 in the absence of VE-cadherin. J. Exp. Med. 2015;212:2267-2287.

    Not in our library10.1084/jem.20150718

  200. 200.

    Hashizume H, et al. Complementary actions of inhibitors of angiopoietin-2 and VEGF on tumor angiogenesis and growth. Cancer Res. 2010;70:2213-2223.

    Not in our library10.1158/0008-5472.can-09-1977

  201. 201.

    Gerald D, Chintharlapalli S, Augustin HG, Benjamin LE. Angiopoietin-2: an attractive target for improved antiangiogenic tumor therapy. Cancer Res. 2013;73:1649-1657.

    Not in our library10.1158/0008-5472.can-12-4697

  202. 202.

    Cao Y, Langer R, Ferrara N. Targeting angiogenesis in oncology, ophthalmology and beyond. Nat. Rev. Drug Discov. 2023;22:476-495.

    Not in our library10.1038/s41573-023-00671-z

  203. 203.

    Semenza GL. HIF-1: using two hands to flip the angiogenic switch. Cancer Metastasis Rev. 2000;19:59-65.

    Not in our library10.1023/a:1026544214667

  204. 204.

    Maxwell PH, Ratcliffe PJ. Oxygen sensors and angiogenesis. Semin. Cell Dev. Biol. 2002;13:29-37.

    Not in our library10.1006/scdb.2001.0287

  205. 205.

    Forsythe JA, et al. Activation of vascular endothelial growth factor gene transcription by hypoxia-inducible factor 1. Mol. Cell. Biol. 1996;16:4604-4613.

    Not in our library10.1128/mcb.16.9.4604

  206. 206.

    Damert A, Ikeda E, Risau W. Activator-protein-1 binding potentiates the hypoxia-induciblefactor-1-mediated hypoxia-induced transcriptional activation of vascular-endothelial growth factor expression in C6 glioma cells. Biochem. J. 1997;327:419-423.

    Not in our library10.1042/bj3270419

  207. 207.

    Arany Z, et al. HIF-independent regulation of VEGF and angiogenesis by the transcriptional coactivator PGC-1alpha. Nature. 2008;451:1008-1012.

    Not in our library10.1038/nature06613

  208. 208.

    Takahashi K, et al. Endogenous oxidative stress, but not ER stress, induces hypoxia-independent VEGF120 release through PI3K-dependent pathways in 3T3-L1 adipocytes. Obesity. 2013;21:1625-1634.

    Not in our library10.1002/oby.20206

  209. 209.

    Xue Y, et al. Hypoxia-independent angiogenesis in adipose tissues during cold acclimation. Cell Metab. 2009;9:99-109.

    Not in our library10.1016/j.cmet.2008.11.009

  210. 210.

    Katsman M, Azriel A, Horev G, Reizel Y, Levi BZN-VEGF. The autoregulatory arm of VEGF-A. Cells. 2022;11:1289.

    Not in our library10.3390/cells11081289

  211. 211.

    Silins G, Grimmond S, Egerton M, Hayward N. Analysis of the promoter region of the human VEGF-related factor gene. Biochem. Biophys. Res. Commun. 1997;230:413-418.

    Not in our library10.1006/bbrc.1996.5979

  212. 212.

    Chilov D, et al. Genomic organization of human and mouse genes for vascular endothelial growth factor C. J. Biol. Chem. 1997;272:25176-25183.

    Not in our library10.1074/jbc.272.40.25176

  213. 213.

    Ming J, Zhang Q, Qiu X, Wang E. Interleukin 7/interleukin 7 receptor induce c-Fos/c-Jun-dependent vascular endothelial growth factor-D up-regulation: a mechanism of lymphangiogenesis in lung cancer. Eur. J. Cancer. 2009;45:866-873.

    Not in our library10.1016/j.ejca.2008.12.006

  214. 214.

    Chen K, Li WD, Li XQ. The role of m6A in angiogenesis and vascular diseases. iScience. 2024;27:110082.

    Not in our library10.1016/j.isci.2024.110082

  215. 215.

    Zhang H, et al. N6-methyladenosine promotes translation of VEGFA to accelerate angiogenesis in lung cancer. Cancer Res. 2023;83:2208-2225.

    Not in our library10.1158/0008-5472.can-22-2449

  216. 216.

    Ye M, et al. WTAP activates MAPK signaling through m6A methylation in VEGFA mRNA-mediated by YTHDC1 to promote colorectal cancer development. FASEB J. 2023;37:e23090.

    Not in our library10.1096/fj.202300344rrr

  217. 217.

    Wen J, et al. YTHDF2 is a therapeutic target for HCC by suppressing immune evasion and angiogenesis through ETV5/PD-L1/VEGFA axis. Adv. Sci. 2024;11:e2307242.

    Not in our library10.1002/advs.202307242

  218. 218.

    Kato M, Slack FJ. microRNAs: small molecules with big roles—C. elegans to human cancer. Biol. Cell. 2008;100:71-81.

    Not in our library10.1042/bc20070078

  219. 219.

    Fabian MR, Sonenberg N, Filipowicz W. Regulation of mRNA translation and stability by microRNAs. Annu. Rev. Biochem. 2010;79:351-379.

    Not in our library10.1146/annurev-biochem-060308-103103

  220. 220.

    Jalil AT, et al. The emerging role of microRNA-126 as a potential therapeutic target in cancer: a comprehensive review. Pathol. Res. Pract. 2023;248:154631.

    Not in our library10.1016/j.prp.2023.154631

  221. 221.

    Wang S, et al. The endothelial-specific microRNA miR-126 governs vascular integrity and angiogenesis. Dev. Cell. 2008;15:261-271.

    Not in our library10.1016/j.devcel.2008.07.002

  222. 222.

    Zhang Y, et al. Epigenetic silencing of miR-126 contributes to tumor invasion and angiogenesis in colorectal cancer. Oncol. Rep. 2013;30:1976-1984.

    Not in our library10.3892/or.2013.2633

  223. 223.

    Sun CY, et al. miR-15a and miR-16 affect the angiogenesis of multiple myeloma by targeting VEGF. Carcinogenesis. 2013;34:426-435.

    Not in our library10.1093/carcin/bgs333

  224. 224.

    Tung YT, et al. Lung tumorigenesis induced by human vascular endothelial growth factor (hVEGF)-A165 overexpression in transgenic mice and amelioration of tumor formation by miR-16. Oncotarget. 2015;6:10222-10238.

    Not in our library10.18632/oncotarget.3390

  225. 225.

    Hu Y, et al. miRNA-205 targets VEGFA and FGF2 and regulates resistance to chemotherapeutics in breast cancer. Cell Death Dis. 2016;7:e2291.

    Not in our library10.1038/cddis.2016.194

  226. 226.

    Zhao X, et al. MicroRNA-205 is downregulated in hepatocellular carcinoma and inhibits cell growth and metastasis via directly targeting vascular endothelial growth factor A. Oncol. Lett. 2018;16:2207-2214.

    Not in our library10.3892/ol.2018.8933

  227. 227.

    Du YE, et al. MiR-205/YAP1 in activated fibroblasts of breast tumor promotes VEGF-independent angiogenesis through STAT3 signaling. Theranostics. 2017;7:3972-3988.

    Not in our library10.7150/thno.18990

  228. 228.

    Fontemaggi G. Non-coding RNA regulatory networks in post-transcriptional regulation of VEGFA in cancer. IUBMB Life. 2023;75:30-39.

    Not in our library10.1002/iub.2620

  229. 229.

    Gandhi P, Wang Y, Li G, Wang S. The role of long noncoding RNAs in ocular angiogenesis and vascular oculopathy. Cell Biosci. 2024;14:39.

    Not in our library10.1186/s13578-024-01217-5

  230. 230.

    Zhou Y, et al. Activation of p53 by MEG3 non-coding RNA. J. Biol. Chem. 2007;282:24731-24742.

    Not in our library10.1074/jbc.m702029200

  231. 231.

    Zhou Y, Zhang X, Klibanski A. MEG3 noncoding RNA: a tumor suppressor. J. Mol. Endocrinol. 2012;48:R45-R53.

    Not in our library10.1530/jme-12-0008

  232. 232.

    Qiu GZ, Tian W, Fu HT, Li CP, Liu B. Long noncoding RNA-MEG3 is involved in diabetes mellitus-related microvascular dysfunction. Biochem. Biophys. Res. Commun. 2016;471:135-141.

    Not in our library10.1016/j.bbrc.2016.01.164

  233. 233.

    Zhang D, et al. LncRNA MEG3 overexpression inhibits the development of diabetic retinopathy by regulating TGF-β1 and VEGF. Exp. Ther. Med. 2018;16:2337-2342.

    Not in our library10.3892/etm.2018.6451

  234. 234.

    Ruan W, et al. Knockdown of long noncoding RNA MEG3 impairs VEGF-stimulated endothelial sprouting angiogenesis via modulating VEGFR2 expression in human umbilical vein endothelial cells. Gene. 2018;649:32-39.

    Not in our library10.1016/j.gene.2018.01.072

  235. 235.

    Han N, Tian W, Yu N, Yu L. YAP1 is required for the angiogenesis in retinal microvascular endothelial cells via the inhibition of MALAT1-mediated miR-200b-3p in high glucose-induced diabetic retinopathy. J. Cell. Physiol. 2020;235:1309-1320.

    Not in our library10.1002/jcp.29047

  236. 236.

    Wang Y, Wang X, Wang YX, Ma Y, Di Y. Effect and mechanism of the long noncoding RNA MALAT1 on retinal neovascularization in retinopathy of prematurity. Life Sci. 2020;260:118299.

    Not in our library10.1016/j.lfs.2020.118299

  237. 237.

    Claffey KP, Senger DR, Spiegelman BM. Structural requirements for dimerization, glycosylation, secretion, and biological function of VPF/VEGF. Biochim. Biophys. Acta. 1995;1246:1-9.

    Not in our library10.1016/0167-4838(94)00144-6

  238. 238.

    Davydova N, et al. Preparation of human vascular endothelial growth factor-D for structural and preclinical therapeutic studies. Protein Expr. Purif. 2012;82:232-239.

    Not in our library10.1016/j.pep.2012.01.001

  239. 239.

    Chandler KB, et al. N-Glycosylation regulates ligand-dependent activation and signaling of vascular endothelial growth factor receptor 2 (VEGFR2). J. Biol. Chem. 2019;294:13117-13130.

    Not in our library10.1074/jbc.ra119.008643

  240. 240.

    Yeh ET. SUMOylation and De-SUMOylation: wrestling with life’s processes. J. Biol. Chem. 2009;284:8223-8227.

    Not in our library10.1074/jbc.r800050200

  241. 241.

    Flotho A, Melchior F. Sumoylation: a regulatory protein modification in health and disease. Annu. Rev. Biochem. 2013;82:357-385.

    Not in our library10.1146/annurev-biochem-061909-093311

  242. 242.

    Zhou HJ, et al. SUMOylation of VEGFR2 regulates its intracellular trafficking and pathological angiogenesis. Nat. Commun. 2018;9:3303.

    Not in our library10.1038/s41467-018-05812-2

  243. 243.

    Xu Y, et al. Induction of SENP1 in endothelial cells contributes to hypoxia-driven VEGF expression and angiogenesis. J. Biol. Chem. 2010;285:36682-36688.

    Not in our library10.1074/jbc.m110.164236

  244. 244.

    He Q, et al. SENP6-mediated deSUMOylation of VEGFR2 enhances its cell membrane transport in angiogenesis. Int. J. Mol. Sci. 2023;24:2544.

    Not in our library10.3390/ijms24032544

  245. 245.

    Wang M, Jiang X. SUMOylation of vascular endothelial growth factor receptor 2 inhibits the proliferation, migration, and angiogenesis signaling pathway in non-small cell lung cancer. Anticancer Drugs. 2020;31:492-499.

    Not in our library10.1097/cad.0000000000000896

  246. 246.

    Smith GA, et al. Ubiquitination of basal VEGFR2 regulates signal transduction and endothelial function. Biol. Open. 2017;6:1404-1415.

    Not in our library10.1242/bio.027896

  247. 247.

    Shaik S, et al. SCF(β-TRCP) suppresses angiogenesis and thyroid cancer cell migration by promoting ubiquitination and destruction of VEGF receptor 2. J. Exp. Med. 2012;209:1289-1307.

    Not in our library10.1084/jem.20112446

  248. 248.

    Sakaue T, Maekawa M, Nakayama H, Higashiyama S. Prospect of divergent roles for the CUL3 system in vascular endothelial cell function and angiogenesis. J. Biochem. 2017;162:237-245.

    Not in our library10.1093/jb/mvx051

  249. 249.

    Sakaue T, et al. The CUL3-SPOP-DAXX axis is a novel regulator of VEGFR2 expression in vascular endothelial cells. Sci. Rep. 2017;7:42845.

    Not in our library10.1038/srep42845

  250. 250.

    Critchley WR, Smith GA, Zachary IC, Harrison MA, Ponnambalam S. The E2 ubiquitin-conjugating enzymes UBE2D1 and UBE2D2 regulate VEGFR2 dynamics and endothelial function. J. Cell. Sci. 2023;136:jcs260657.

    Not in our library10.1242/jcs.260657

  251. 251.

    Smith GA, et al. VEGFR2 trafficking, signaling and proteolysis is regulated by the ubiquitin isopeptidase USP8. Traffic. 2016;17:53-65.

    Not in our library10.1111/tra.12341

  252. 252.

    Corti F, Simons M. Modulation of VEGF receptor 2 signaling by protein phosphatases. Pharmacol. Res. 2017;115:107-123.

    Not in our library10.1016/j.phrs.2016.11.022

  253. 253.

    Drexler HCA, et al. Vascular endothelial receptor tyrosine phosphatase: identification of novel substrates related to junctions and a ternary complex with EPHB4 and TIE2. Mol. Cell. Proteom. 2019;18:2058-2077.

    Not in our library10.1074/mcp.ra119.001716

  254. 254.

    Fachinger G, Deutsch U, Risau W. Functional interaction of vascular endothelial-protein-tyrosine phosphatase with the angiopoietin receptor Tie-2. Oncogene. 1999;18:5948-5953.

    Not in our library10.1038/sj.onc.1202992

  255. 255.

    Nawroth R, et al. VE-PTP and VE-cadherin ectodomains interact to facilitate regulation of phosphorylation and cell contacts. EMBO J. 2002;21:4885-4895.

    Not in our library10.1093/emboj/cdf497

  256. 256.

    Hayashi M, et al. VE-PTP regulates VEGFR2 activity in stalk cells to establish endothelial cell polarity and lumen formation. Nat. Commun. 2013;4:1672.

    Not in our library10.1038/ncomms2683

  257. 257.

    Mellberg S, et al. Transcriptional profiling reveals a critical role for tyrosine phosphatase VE-PTP in regulation of VEGFR2 activity and endothelial cell morphogenesis. FASEB J. 2009;23:1490-1502.

    Not in our library10.1096/fj.08-123810

  258. 258.

    Baccouche B, Lietuvninkas L, Kazlauskas A. Activin A limits VEGF-induced permeability via VE-PTP. Int. J. Mol. Sci. 2023;24:8698.

    Not in our library10.3390/ijms24108698

  259. 259.

    Nakamura Y, et al. Role of protein tyrosine phosphatase 1B in vascular endothelial growth factor signaling and cell-cell adhesions in endothelial cells. Circ. Res. 2008;102:1182-1191.

    Not in our library10.1161/circresaha.107.167080

  260. 260.

    Lanahan AA, et al. VEGF receptor 2 endocytic trafficking regulates arterial morphogenesis. Dev. Cell. 2010;18:713-724.

    Not in our library10.1016/j.devcel.2010.02.016

  261. 261.

    Bhattacharya R, Kwon J, Wang E, Mukherjee P, Mukhopadhyay D. Src homology 2 (SH2) domain containing protein tyrosine phosphatase-1 (SHP-1) dephosphorylates VEGF Receptor-2 and attenuates endothelial DNA synthesis, but not migration. J. Mol. Signal. 2008;3:8.

    Not in our library10.1186/1750-2187-3-8

  262. 262.

    Chu L-Y, Ramakrishnan DP, Silverstein RL. Thrombospondin-1 modulates VEGF signaling via CD36 by recruiting SHP-1 to VEGFR2 complex in microvascular endothelial cells. Blood. 2013;122:1822-1832.

    Not in our library10.1182/blood-2013-01-482315

  263. 263.

    Chandarlapaty S. Negative feedback and adaptive resistance to the targeted therapy of cancer. Cancer Discov. 2012;2:311-319.

    Not in our library10.1158/2159-8290.cd-12-0018

  264. 264.

    Mason JM, Morrison DJ, Basson MA, Licht JD. Sprouty proteins: multifaceted negative-feedback regulators of receptor tyrosine kinase signaling. Trends Cell. Biol. 2006;16:45-54.

    Not in our library10.1016/j.tcb.2005.11.004

  265. 265.

    Anastasi S, Lamberti D, Alemà S, Segatto O. Regulation of the ErbB network by the MIG6 feedback loop in physiology, tumor suppression and responses to oncogene-targeted therapeutics. Semin. Cell Dev. Biol. 2016;50:115-124.

    Not in our library10.1016/j.semcdb.2015.10.001

  266. 266.

    Watanabe K, et al. Vasohibin as an endothelium-derived negative feedback regulator of angiogenesis. J. Clin. Invest. 2004;114:898-907.

    Not in our library10.1172/jci200421152

  267. 267.

    Kerbel RS. Vasohibin: the feedback on a new inhibitor of angiogenesis. J. Clin. Invest. 2004;114:884-886.

    Not in our library10.1172/jci23153

  268. 268.

    Shen J, et al. Vasohibin is up-regulated by VEGF in the retina and suppresses VEGF receptor 2 and retinal neovascularization. FASEB J. 2006;20:723-725.

    Not in our library10.1096/fj.05-5046fje

  269. 269.

    Nimmagadda S, et al. Expression pattern of Vasohibin during chick development. Dev. Dyn. 2007;236:1358-1362.

    Not in our library10.1002/dvdy.21134

  270. 270.

    Horie S, et al. Distinctive role of vasohibin-1A and its splicing variant vasohibin-1B in tumor angiogenesis. Cancer Gene Ther. 2016;23:133-141.

    Not in our library10.1038/cgt.2016.13

  271. 271.

    Kimura H, et al. Distinctive localization and opposed roles of vasohibin-1 and vasohibin-2 in the regulation of angiogenesis. Blood. 2009;113:4810-4818.

    Not in our library10.1182/blood-2008-07-170316

  272. 272.

    Takahashi Y, et al. Vasohibin-2 expressed in human serous ovarian adenocarcinoma accelerates tumor growth by promoting angiogenesis. Mol. Cancer Res. 2012;10:1135-1146.

    Not in our library10.1158/1541-7786.mcr-12-0098-t

  273. 273.

    Sato Y. Double-face of vasohibin-1 for the maintenance of vascular homeostasis and healthy longevity. J. Atheroscler. Thromb. 2018;25:461-466.

    Not in our library10.5551/jat.43398

  274. 274.

    Lobov IB, et al. Delta-like ligand 4 (Dll4) is induced by VEGF as a negative regulator of angiogenic sprouting. Proc. Natl. Acad. Sci. USA. 2007;104:3219-3224.

    Not in our library10.1073/pnas.0611206104

  275. 275.

    Jakobsson L, Bentley K, Gerhardt H. VEGFRs and Notch: a dynamic collaboration in vascular patterning. Biochem. Soc. Trans. 2009;37:1233-1236.

    Not in our library10.1042/bst0371233

  276. 276.

    Hellström M, et al. Dll4 signalling through Notch1 regulates formation of tip cells during angiogenesis. Nature. 2007;445:776-780.

    Not in our library10.1038/nature05571

  277. 277.

    Siekmann AF, Lawson ND. Notch signalling and the regulation of angiogenesis. Cell Adh. Migr. 2007;1:104-105.

    Not in our library10.4161/cam.1.2.4488

  278. 278.

    Hellström M, Phng L-K, Gerhardt H. VEGF and notch signaling. Cell Adh. Migr. 2007;1:133-136.

    Not in our library10.4161/cam.1.3.4978

  279. 279.

    Gerhardt H. VEGF and endothelial guidance in angiogenic sprouting. Organogenesis. 2008;4:241-246.

    Not in our library10.4161/org.4.4.7414

  280. 280.

    Shin M, et al. Vegfa signals through ERK to promote angiogenesis, but not artery differentiation. Development. 2016;143:3796-3805.

    Not in our library10.1242/dev.137919

  281. 281.

    Eilken HM, Adams RH. Dynamics of endothelial cell behavior in sprouting angiogenesis. Curr. Opin. Cell Biol. 2010;22:617-625.

    Not in our library10.1016/j.ceb.2010.08.010

  282. 282.

    Blanco R, Gerhardt H. VEGF and Notch in tip and stalk cell selection. Cold Spring Harb. Perspect. Med. 2013;3:a006569.

    Not in our library10.1101/cshperspect.a006569

  283. 283.

    Benedito R, et al. The notch ligands Dll4 and Jagged1 have opposing effects on angiogenesis. Cell. 2009;137:1124-1135.

    Not in our library10.1016/j.cell.2009.03.025

  284. 284.

    Benedito R, et al. Notch-dependent VEGFR3 upregulation allows angiogenesis without VEGF-VEGFR2 signalling. Nature. 2012;484:110-114.

    Not in our library10.1038/nature10908

  285. 285.

    Monahan-Earley R, Dvorak AM, Aird WC. Evolutionary origins of the blood vascular system and endothelium. J. Thromb. Haemost. 2013;11(Suppl 1):46-66.

    Not in our library10.1111/jth.12253

  286. 286.

    Hartenstein V, Mandal L. The blood/vascular system in a phylogenetic perspective. Bioessays. 2006;28:1203-1210.

    Not in our library10.1002/bies.20497

  287. 287.

    Farmer CG. Evolution of the vertebrate cardio-pulmonary system. Annu. Rev. Physiol. 1999;61:573-592.

    Not in our library10.1146/annurev.physiol.61.1.573

  288. 288.

    Patan S. Vasculogenesis and angiogenesis. Cancer Treat. Res. 2004;117:3-32.

    Not in our library10.1007/978-1-4419-8871-3_1

  289. 289.

    Littman RJ. The heart and the vascular system in ancient-Greek medicine— from Alcmaeon to Galen - Harris,Crs. Classical World. 1975;69:143-144.

    Not in our library10.2307/4348383

  290. 290.

    Schoefl GI. Studies on inflammation. Iii. Growing capillaries: their structure and permeability. Virchows Arch. Pathol. Anat. Physiol. Klin. Med. 1963;337:97-141.

    Not in our library10.1007/bf00963592

  291. 291.

    Cliff WJ. Observations on healing tissue—a combined light and electron microscopic investigation. Philos. Trans. R. Soc. Lond. B Biol. Sci. 1963;246:305.

    Not in our library10.1098/rstb.1963.0008

  292. 292.

    Folkman J. How is blood vessel growth regulated in normal and neoplastic tissue? G.H.A. Clowes memorial Award lecture. Cancer Res. 1986;46:467-473.

    Not in our library

  293. 293.

    Herbert SP, Stainier DY. Molecular control of endothelial cell behaviour during blood vessel morphogenesis. Nat. Rev. Mol. Cell Biol. 2011;12:551-564.

    Not in our library10.1038/nrm3176

  294. 294.

    Potente M, Gerhardt H, Carmeliet P. Basic and therapeutic aspects of angiogenesis. Cell. 2011;146:873-887.

    Not in our library10.1016/j.cell.2011.08.039

  295. 295.

    Tolentino MJ, et al. Vascular endothelial growth factor is sufficient to produce iris neovascularization and neovascular glaucoma in a nonhuman primate. Arch. Ophthalmol. 1996;114:964-970.

    Not in our library10.1001/archopht.1996.01100140172010

  296. 296.

    Abdelrahim M, Smith R, Burghardt R, Safe S. Role of Sp proteins in regulation of vascular endothelial growth factor expression and proliferation of pancreatic cancer cells. Cancer Res. 2004;64:6740-6749.

    Not in our library10.1158/0008-5472.can-04-0713

  297. 297.

    Hallmann R, et al. Expression and function of laminins in the embryonic and mature vasculature. Physiol. Rev. 2005;85:979-1000.

    Not in our library10.1152/physrev.00014.2004

  298. 298.

    Mecham RP, Ramirez F. Extracellular determinants of arterial morphogenesis, growth, and homeostasis. Curr. Top. Dev. Biol. 2018;130:193-216.

    Not in our library10.1016/bs.ctdb.2018.02.001

  299. 299.

    Giannotta M, Trani M, Dejana E. VE-cadherin and endothelial adherens junctions: active guardians of vascular integrity. Dev. Cell. 2013;26:441-454.

    Not in our library10.1016/j.devcel.2013.08.020

  300. 300.

    Lal-Nag M, Morin PJ. The claudins. Genome Biol. 2009;10:235.

    Not in our library10.1186/gb-2009-10-8-235

  301. 301.

    Mandell KJ, Parkos CA. The JAM family of proteins. Adv. Drug Deliv. Rev. 2005;57:857-867.

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    van Hinsbergh VW, Engelse MA, Quax PH. Pericellular proteases in angiogenesis and vasculogenesis. Arterioscler. Thromb. Vasc. Biol. 2006;26:716-728.

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    Mongiat M, Sweeney SM, San Antonio JD, Fu J, Iozzo RV. Endorepellin, a novel inhibitor of angiogenesis derived from the C terminus of perlecan. J. Biol. Chem. 2003;278:4238-4249.

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    Maeshima Y, et al. Tumstatin, an endothelial cell-specific inhibitor of protein synthesis. Science. 2002;295:140-143.

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    Gavard J, Gutkind JS. VEGF controls endothelial-cell permeability by promoting the beta-arrestin-dependent endocytosis of VE-cadherin. Nat. Cell Biol. 2006;8:1223-1234.

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    Bar T, Wolff JR. The formation of capillary basement membranes during internal vascularization of the rat’s cerebral cortex. Z. Zellforsch. Mikros Anat. 1972;133:231-248.

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    Miller DL, Ortega S, Bashayan O, Basch R, Basilico C. Compensation by fibroblast growth factor 1 (FGF1) does not account for the mild phenotypic defects observed in FGF2 null mice. Mol. Cell. Biol. 2000;20:2260-2268.

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    Thurston G, et al. Leakage-resistant blood vessels in mice transgenically overexpressing angiopoietin-1. Science. 1999;286:2511-2514.

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    Pan X, et al. Tumour vasculature at single-cell resolution. Nature. 2024;632:429-436.

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    Shalaby F, et al. Failure of blood-island formation and vasculogenesis in Flk-1-deficient mice. Nature. 1995;376:62-66.

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    Djonov VG, Kurz H, Burri PH. Optimality in the developing vascular system: branching remodeling by means of intussusception as an efficient adaptation mechanism. Dev. Dyn. 2002;224:391-402.

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    Dill MT, et al. Disruption of Notch1 induces vascular remodeling, intussusceptive angiogenesis, and angiosarcomas in livers of mice. Gastroenterology. 2012;142:967-977 e962.

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    Herbert SP, et al. Arterial-venous segregation by selective cell sprouting: an alternative mode of blood vessel formation. Science. 2009;326:294-298.

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    Zhang L, et al. VEGFR-3 ligand-binding and kinase activity are required for lymphangiogenesis but not for angiogenesis. Cell Res. 2010;20:1319-1331.

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    Hong YK, et al. VEGF-A promotes tissue repair-associated lymphatic vessel formation via VEGFR-2 and the alpha1beta1 and alpha2beta1 integrins. FASEB J. 2004;18:1111-1113.

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  380. 380.

    Cursiefen C, et al. VEGF-A stimulates lymphangiogenesis and hemangiogenesis in inflammatory neovascularization via macrophage recruitment. J. Clin. Invest. 2004;113:1040-1050.

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    Murakami M, et al. VEGFR1 tyrosine kinase signaling promotes lymphangiogenesis as well as angiogenesis indirectly via macrophage recruitment. Arterioscler. Thromb. Vasc. Biol. 2008;28:658-664.

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    Tammela T, et al. Angiopoietin-1 promotes lymphatic sprouting and hyperplasia. Blood. 2005;105:4642-4648.

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  384. 384.

    Cao R, et al. Hepatocyte growth factor is a lymphangiogenic factor with an indirect mechanism of action. Blood. 2006;107:3531-3536.

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    Cao R, et al. PDGF-BB induces intratumoral lymphangiogenesis and promotes lymphatic metastasis. Cancer Cell. 2004;6:333-345.

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    Detry B, et al. Matrix metalloproteinase-2 governs lymphatic vessel formation as an interstitial collagenase. Blood. 2012;119:5048-5056.

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    Zheng W, et al. Notch restricts lymphatic vessel sprouting induced by vascular endothelial growth factor. Blood. 2011;118:1154-1162.

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    Schoppmann SF, et al. Tumor-associated macrophages express lymphatic endothelial growth factors and are related to peritumoral lymphangiogenesis. Am. J. Pathol. 2002;161:947-956.

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  391. 391.

    Bellomo D, et al. Mice lacking the vascular endothelial growth factor-B gene (Vegfb) have smaller hearts, dysfunctional coronary vasculature, and impaired recovery from cardiac ischemia. Circ. Res. 2000;86:E29-E35.

    Not in our library10.1161/01.res.86.2.e29

  392. 392.

    Eremina V, et al. Glomerular-specific alterations of VEGF-A expression lead to distinct congenital and acquired renal diseases. J. Clin. Invest. 2003;111:707-716.

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    Gerber HP, et al. VEGF is required for growth and survival in neonatal mice. Development. 1999;126:1149-1159.

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  394. 394.

    Grunewald M, et al. Counteracting age-related VEGF signaling insufficiency promotes healthy aging and extends life span. Science. 2021;373:eabc8479.

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  395. 395.

    Grotte G. Passage of dextran molecules across the blood-lymph barrier. Acta Chir. Scand. Suppl. 1956;211:1-84.

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    Levick JR, Michel CC. Microvascular fluid exchange and the revised Starling principle. Cardiovasc. Res. 2010;87:198-210.

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  398. 398.

    Nagy JA, Benjamin L, Zeng H, Dvorak AM, Dvorak HF. Vascular permeability, vascular hyperpermeability and angiogenesis. Angiogenesis. 2008;11:109-119.

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    Sun Z, et al. VEGFR2 induces c-Src signaling and vascular permeability in vivo via the adaptor protein TSAd. J. Exp. Med. 2012;209:1363-1377.

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  400. 400.

    Takahashi T, Yamaguchi S, Chida K, Shibuya M. A single autophosphorylation site on KDR/Flk-1 is essential for VEGF-A-dependent activation of PLC-gamma and DNA synthesis in vascular endothelial cells. EMBO J. 2001;20:2768-2778.

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  401. 401.

    Sakurai Y, Ohgimoto K, Kataoka Y, Yoshida N, Shibuya M. Essential role of Flk-1 (VEGF receptor 2) tyrosine residue 1173 in vasculogenesis in mice. Proc. Natl. Acad. Sci. USA. 2005;102:1076-1081.

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  402. 402.

    Ackah E, et al. Akt1/protein kinase Balpha is critical for ischemic and VEGF-mediated angiogenesis. J. Clin. Invest. 2005;115:2119-2127.

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  403. 403.

    Bauer PM, et al. Endothelial-specific expression of caveolin-1 impairs microvascular permeability and angiogenesis. Proc. Natl. Acad. Sci. USA. 2005;102:204-209.

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    Labrecque L, et al. Regulation of vascular endothelial growth factor receptor-2 activity by caveolin-1 and plasma membrane cholesterol. Mol. Biol. Cell. 2003;14:334-347.

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  405. 405.

    Matsunaga Y, Yamazaki Y, Suzuki H, Morita T. VEGF-A and VEGF-F evoke distinct changes in vascular ultrastructure. Biochem. Biophys. Res. Commun. 2009;379:872-875.

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  406. 406.

    Kohn S, Nagy JA, Dvorak HF, Dvorak AM. Pathways of macromolecular tracer transport across venules and small veins. Structural basis for the hyperpermeability of tumor blood vessels. Lab. Investig. 1992;67:596-607.

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    Yang J, et al. ADAM10 and ADAM17 proteases mediate proinflammatory cytokine-induced and constitutive cleavage of endomucin from the endothelial surface. J. Biol. Chem. 2020;295:6641-6651.

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  408. 408.

    LeBlanc ME, et al. Glycocalyx regulation of vascular endothelial growth factor receptor 2 activity. FASEB J. 2019;33:9362-9373.

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  409. 409.

    LeCouter J, et al. Identification of an angiogenic mitogen selective for endocrine gland endothelium. Nature. 2001;412:877-884.

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  410. 410.

    Colin IM, Denef JF, Lengele B, Many MC, Gerard AC. Recent insights into the cell biology of thyroid angiofollicular units. Endocr. Rev. 2013;34:209-238.

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  411. 411.

    Kamba T, et al. VEGF-dependent plasticity of fenestrated capillaries in the normal adult microvasculature. Am. J. Physiol. Heart Circ. Physiol. 2006;290:H560-H576.

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  412. 412.

    Jang JY, et al. VEGFR2 but not VEGFR3 governs integrity and remodeling of thyroid angiofollicular unit in normal state and during goitrogenesis. EMBO Mol. Med. 2017;9:750-769.

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  413. 413.

    Yang Y, et al. Anti-VEGF- and anti-VEGF receptor-induced vascular alteration in mouse healthy tissues. Proc. Natl. Acad. Sci. USA. 2013;110:12018-12023.

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  414. 414.

    Zhang Y, et al. Endocrine vasculatures are preferable targets of an antitumor ineffective low dose of anti-VEGF therapy. Proc. Natl. Acad. Sci. USA. 2016;113:4158-4163.

    Not in our library10.1073/pnas.1601649113

  415. 415.

    van der Veldt AA, Lammertsma AA, Smit EF. Reduction in thyroid perfusion after bevacizumab treatment. Thyroid. 2013;23:1329-1330.

    Not in our library10.1089/thy.2013.0147

  416. 416.

    Lee S, et al. Autocrine VEGF signaling is required for vascular homeostasis. Cell. 2007;130:691-703.

    Not in our library10.1016/j.cell.2007.06.054

  417. 417.

    Siegel RL, Kratzer TB, Giaquinto AN, Sung H, Jemal A. Cancer statistics, 2025. CA Cancer J. Clin. 2025;75:10-45.

    Not in our library10.3322/caac.21871

  418. 418.

    Carmeliet P. VEGF as a key mediator of angiogenesis in cancer. Oncology. 2005;69(Suppl 3):4-10.

    Not in our library10.1159/000088478

  419. 419.

    Krock BL, Skuli N, Simon MC. Hypoxia-induced angiogenesis: good and evil. Genes Cancer. 2011;2:1117-1133.

    Not in our library10.1177/1947601911423654

  420. 420.

    Rak J, et al. Oncogenes as inducers of tumor angiogenesis. Cancer Metastasis Rev. 1995;14:263-277.

    Not in our library10.1007/bf00690598

  421. 421.

    Rak J, et al. Mutant ras oncogenes upregulate VEGF/VPF expression: implications for induction and inhibition of tumor angiogenesis. Cancer Res. 1995;55:4575-4580.

    Not in our library

  422. 422.

    Khromova NV, Kopnin PB, Stepanova EV, Agapova LS, Kopnin BP. p53 hot-spot mutants increase tumor vascularization via ROS-mediated activation of the HIF1/VEGF-A pathway. Cancer Lett. 2009;276:143-151.

    Not in our library10.1016/j.canlet.2008.10.049

  423. 423.

    Nagy JA, Dvorak AM, Dvorak HF. VEGF-A and the induction of pathological angiogenesis. Annu. Rev. Pathol. 2007;2:251-275.

    Not in our library10.1146/annurev.pathol.2.010506.134925

  424. 424.

    Nayarisseri A, et al. Potential inhibitors of VEGFR1, VEGFR2, and VEGFR3 developed through deep learning for the treatment of cervical cancer. Sci. Rep. 2024;14:13251.

    Not in our library10.1038/s41598-024-63762-w

  425. 425.

    Fischer C, et al. Anti-PlGF inhibits growth of VEGF(R)-inhibitor-resistant tumors without affecting healthy vessels. Cell. 2007;131:463-475.

    Not in our library10.1016/j.cell.2007.08.038

  426. 426.

    Marcellini M, et al. Increased melanoma growth and metastasis spreading in mice overexpressing placenta growth factor. Am. J. Pathol. 2006;169:643-654.

    Not in our library10.2353/ajpath.2006.051041

  427. 427.

    Schomber T, et al. Placental growth factor-1 attenuates vascular endothelial growth factor-A-dependent tumor angiogenesis during beta cell carcinogenesis. Cancer Res. 2007;67:10840-10848.

    Not in our library10.1158/0008-5472.can-07-1034

  428. 428.

    Bais C, et al. PlGF blockade does not inhibit angiogenesis during primary tumor growth. Cell. 2010;141:166-177.

    Not in our library10.1016/j.cell.2010.01.033

  429. 429.

    Valtola R, et al. VEGFR-3 and its ligand VEGF-C are associated with angiogenesis in breast cancer. Am. J. Pathol. 1999;154:1381-1390.

    Not in our library10.1016/s0002-9440(10)65392-8

  430. 430.

    Karpanen T, et al. Vascular endothelial growth factor C promotes tumor lymphangiogenesis and intralymphatic tumor growth. Cancer Res. 2001;61:1786-1790.

    Not in our library

  431. 431.

    Skobe M, et al. Induction of tumor lymphangiogenesis by VEGF-C promotes breast cancer metastasis. Nat. Med. 2001;7:192-198.

    Not in our library10.1038/84643

  432. 432.

    Tammela T, Alitalo K. Lymphangiogenesis: molecular mechanisms and future promise. Cell. 2010;140:460-476.

    Not in our library10.1016/j.cell.2010.01.045

  433. 433.

    He Y, et al. Vascular endothelial cell growth factor receptor 3-mediated activation of lymphatic endothelium is crucial for tumor cell entry and spread via lymphatic vessels. Cancer Res. 2005;65:4739-4746.

    Not in our library10.1158/0008-5472.can-04-4576

  434. 434.

    Bokhari SMZ, Hamar P. Vascular endothelial growth factor-D (VEGF-D): an angiogenesis bypass in malignant tumors. Int. J. Mol. Sci. 2023;24:13317.

    Not in our library10.3390/ijms241713317

  435. 435.

    Yang Z, et al. Changes in serum growth factors during resistance to atezolizumab plus bevacizumab treatment in patients with unresectable hepatocellular carcinoma. Cancers. 2023;15:593.

    Not in our library10.3390/cancers15030593

  436. 436.

    Holm PW, Slart RH, Zeebregts CJ, Hillebrands JL, Tio RA. Atherosclerotic plaque development and instability: a dual role for VEGF. Ann. Med. 2009;41:257-264.

    Not in our library10.1080/07853890802516507

  437. 437.

    Bhardwaj S, Roy H, Heikura T, Yla-Herttuala S. VEGF-A, VEGF-D and VEGF-D(DeltaNDeltaC) induced intimal hyperplasia in carotid arteries. Eur. J. Clin. Invest. 2005;35:669-676.

    Not in our library10.1111/j.1365-2362.2005.01555.x

  438. 438.

    Celletti FL, et al. Vascular endothelial growth factor enhances atherosclerotic plaque progression. Nat. Med. 2001;7:425-429.

    Not in our library10.1038/86490

  439. 439.

    Guo L, et al. CD163+ macrophages promote angiogenesis and vascular permeability accompanied by inflammation in atherosclerosis. J. Clin. Invest. 2018;128:1106-1124.

    Not in our library10.1172/jci93025

  440. 440.

    Roy H, et al. Adenovirus-mediated gene transfer of placental growth factor to perivascular tissue induces angiogenesis via upregulation of the expression of endogenous vascular endothelial growth factor-A. Hum. Gene Ther. 2005;16:1422-1428.

    Not in our library10.1089/hum.2005.16.1422

  441. 441.

    Dewerchin M, Carmeliet P. PlGF: a multitasking cytokine with disease-restricted activity. Cold Spring Harb. Perspect. Med. 2012;2:a011056.

    Not in our library10.1101/cshperspect.a011056

  442. 442.

    Khurana R, et al. Placental growth factor promotes atherosclerotic intimal thickening and macrophage accumulation. Circulation. 2005;111:2828-2836.

    Not in our library10.1161/circulationaha.104.495887

  443. 443.

    Barleon B, et al. Migration of human monocytes in response to vascular endothelial growth factor (VEGF) is mediated via the VEGF receptor flt-1. Blood. 1996;87:3336-3343.

    Not in our library10.1182/blood.v87.8.3336.bloodjournal8783336

  444. 444.

    Yamashita J, et al. Flk1-positive cells derived from embryonic stem cells serve as vascular progenitors. Nature. 2000;408:92-96.

    Not in our library10.1038/35040568

  445. 445.

    Zhang J, et al. VEGF blockade inhibits lymphocyte recruitment and ameliorates immune-mediated vascular remodeling. Circ. Res. 2010;107:408-417.

    Not in our library10.1161/circresaha.109.210963

  446. 446.

    Wada H, et al. VEGF-C and mortality in patients with suspected or known coronary artery disease. J. Am. Heart Assoc. 2018;7:e010355.

    Not in our library10.1161/jaha.118.010355

  447. 447.

    Silvestre-Roig C, et al. Arterial delivery of VEGF-C stabilizes atherosclerotic lesions. Circ. Res. 2021;128:284-286.

    Not in our library10.1161/circresaha.120.317186

  448. 448.

    Rutanen J, et al. Vascular endothelial growth factor-D expression in human atherosclerotic lesions. Cardiovasc. Res. 2003;59:971-979.

    Not in our library10.1016/s0008-6363(03)00518-2

  449. 449.

    Rutanen J, et al. Gene transfer using the mature form of VEGF-D reduces neointimal thickening through nitric oxide-dependent mechanism. Gene Ther. 2005;12:980-987.

    Not in our library10.1038/sj.gt.3302489

  450. 450.
  451. 451.

    Kuwabara M, et al. Nitric oxide stimulates vascular endothelial growth factor production in cardiomyocytes involved in angiogenesis. J. Physiol. Sci. 2006;56:95-101.

    Not in our library10.2170/physiolsci.rp002305

  452. 452.
  453. 453.

    Cai LX, Alkassis FF, Kasahara H. Defective coronary vessel organization and reduction of VEGF-A in mouse embryonic hearts with gestational mild hypoxia. Dev. Dyn. 2020;249:636-645.

    Not in our library10.1002/dvdy.149

  454. 454.

    Giordano FJ, et al. A cardiac myocyte vascular endothelial growth factor paracrine pathway is required to maintain cardiac function. Proc. Natl. Acad. Sci. USA. 2001;98:5780-5785.

    Not in our library10.1073/pnas.091415198

  455. 455.

    Ferraro B, et al. Pro-angiogenic macrophage phenotype to promote myocardial repair. J. Am. Coll. Cardiol. 2019;73:2990-3002.

    Not in our library10.1016/j.jacc.2019.03.503

  456. 456.

    Li Y, et al. Losartan protects against myocardial ischemia and reperfusion injury via vascular integrity preservation. FASEB J. 2019;33:8555-8564.

    Not in our library10.1096/fj.201900060r

  457. 457.

    Hedman M, et al. Safety and feasibility of catheter-based local intracoronary vascular endothelial growth factor gene transfer in the prevention of postangioplasty and in-stent restenosis and in the treatment of chronic myocardial ischemia: phase II results of the Kuopio Angiogenesis Trial (KAT). Circulation. 2003;107:2677-2683.

    Not in our library10.1161/01.cir.0000070540.80780.92

  458. 458.

    Jaba IM, et al. NO triggers RGS4 degradation to coordinate angiogenesis and cardiomyocyte growth. J. Clin. Invest. 2013;123:1718-1731.

    Not in our library10.1172/jci65112

  459. 459.

    Bry M, et al. Vascular endothelial growth factor-B acts as a coronary growth factor in transgenic rats without inducing angiogenesis, vascular leak, or inflammation. Circulation. 2010;122:1725-1733.

    Not in our library10.1161/circulationaha.110.957332

  460. 460.
  461. 461.

    Klotz L, et al. Cardiac lymphatics are heterogeneous in origin and respond to injury. Nature. 2015;522:62-67.

    Not in our library10.1038/nature14483

  462. 462.

    Henri O, et al. Selective stimulation of cardiac lymphangiogenesis reduces myocardial edema and fibrosis leading to improved cardiac function following myocardial infarction. Circulation. 2016;133:1484-1497.

    Not in our library10.1161/circulationaha.115.020143

  463. 463.

    Chen XG, et al. Vascular endothelial growth factor-C protects heart from ischemia/reperfusion injury by inhibiting cardiomyocyte apoptosis. Mol. Cell. Biochem. 2016;413:9-23.

    Not in our library10.1007/s11010-015-2622-9

  464. 464.

    Rutanen J, et al. Adenoviral catheter-mediated intramyocardial gene transfer using the mature form of vascular endothelial growth factor-D induces transmural angiogenesis in porcine heart. Circulation. 2004;109:1029-1035.

    Not in our library10.1161/01.cir.0000115519.03688.a2

  465. 465.

    Zhao T, et al. Vascular endothelial growth factor-D mediates fibrogenic response in myofibroblasts. Mol. Cell. Biochem. 2016;413:127-135.

    Not in our library10.1007/s11010-015-2646-1

  466. 466.

    Piccirillo JF, Tierney RM, Costas I, Grove L, Spitznagel EL. Prognostic importance of comorbidity in a hospital-based cancer registry. JAMA. 2004;291:2441-2447.

    Not in our library10.1001/jama.291.20.2441

  467. 467.

    Meadows KL, Hurwitz HI. Anti-VEGF therapies in the clinic. Cold Spring Harb. Perspect. Med. 2012;2:a006577.

    Not in our library10.1101/cshperspect.a006577

  468. 468.

    Facemire CS, Nixon AB, Griffiths R, Hurwitz H, Coffman TM. Vascular endothelial growth factor receptor 2 controls blood pressure by regulating nitric oxide synthase expression. Hypertension. 2009;54:652-658.

    Not in our library10.1161/hypertensionaha.109.129973

  469. 469.

    Hood JD, Meininger CJ, Ziche M, Granger HJ. VEGF upregulates ecNOS message, protein, and NO production in human endothelial cells. Am. J. Physiol. 1998;274:H1054-H1058.

    Not in our library10.1152/ajpheart.1998.274.3.h1054

  470. 470.

    Robinson ES, et al. Suppression of the nitric oxide pathway in metastatic renal cell carcinoma patients receiving vascular endothelial growth factor-signaling inhibitors. Hypertension. 2010;56:1131-1136.

    Not in our library10.1161/hypertensionaha.110.160481

  471. 471.

    Mayer EL, et al. Contrary effects of the receptor tyrosine kinase inhibitor vandetanib on constitutive and flow-stimulated nitric oxide elaboration in humans. Hypertension. 2011;58:85-92.

    Not in our library10.1161/hypertensionaha.110.168120

  472. 472.

    Kappers MH, et al. The vascular endothelial growth factor receptor inhibitor sunitinib causes a preeclampsia-like syndrome with activation of the endothelin system. Hypertension. 2011;58:295-302.

    Not in our library10.1161/hypertensionaha.111.173559

  473. 473.

    Kappers MH, et al. Hypertension induced by the tyrosine kinase inhibitor sunitinib is associated with increased circulating endothelin-1 levels. Hypertension. 2010;56:675-681.

    Not in our library10.1161/hypertensionaha.109.149690

  474. 474.

    de Jesus-Gonzalez N, et al. Regorafenib induces rapid and reversible changes in plasma nitric oxide and endothelin-1. Am. J. Hypertens. 2012;25:1118-1123.

    Not in our library10.1038/ajh.2012.97

  475. 475.

    Veronese ML, et al. Mechanisms of hypertension associated with BAY 43-9006. J. Clin. Oncol. 2006;24:1363-1369.

    Not in our library10.1200/jco.2005.02.0503

  476. 476.

    Levy BI, Ambrosio G, Pries AR, Struijker-Boudier HA. Microcirculation in hypertension: a new target for treatment? Circulation. 2001;104:735-740.

    Not in our library10.1161/hc3101.091158

  477. 477.

    Machnik A, et al. Macrophages regulate salt-dependent volume and blood pressure by a vascular endothelial growth factor-C-dependent buffering mechanism. Nat. Med. 2009;15:545-552.

    Not in our library10.1038/nm.1960

  478. 478.

    Wiig H, et al. Immune cells control skin lymphatic electrolyte homeostasis and blood pressure. J. Clin. Invest. 2013;123:2803-2815.

    Not in our library10.1172/jci60113

  479. 479.

    Lankhorst S, et al. Salt sensitivity of angiogenesis inhibition-induced blood pressure rise: role of interstitial sodium accumulation? Hypertension. 2017;69:919-926.

    Not in our library10.1161/hypertensionaha.116.08565

  480. 480.

    Wong TY, Cheung CM, Larsen M, Sharma S, Simo R. Diabetic retinopathy. Nat. Rev. Dis. Prim. 2016;2:16012.

    Not in our library10.1038/nrdp.2016.12

  481. 481.

    Kaur A, Kumar R, Sharma A. Diabetic retinopathy leading to blindness—a review. Curr. Diab. Rev. 2024;20:e240124225997.

    Not in our library10.2174/0115733998274599231109034741

  482. 482.

    Jhaveri CD, et al. Aflibercept monotherapy or bevacizumab first for diabetic macular edema. New Engl. J. Med. 2022;387:692-703.

    Not in our library10.1056/nejmoa2204225

  483. 483.

    Froger N, et al. VEGF is an autocrine/paracrine neuroprotective factor for injured retinal ganglion neurons. Sci. Rep. 2020;10:12409.

    Not in our library10.1038/s41598-020-68488-z

  484. 484.

    Stone J, et al. Development of retinal vasculature is mediated by hypoxia-induced vascular endothelial growth factor (VEGF) expression by neuroglia. J. Neurosci. 1995;15:4738-4747.

    Not in our library10.1523/jneurosci.15-07-04738.1995

  485. 485.

    Darland DC, et al. Pericyte production of cell-associated VEGF is differentiation-dependent and is associated with endothelial survival. Dev. Biol. 2003;264:275-288.

    Not in our library10.1016/j.ydbio.2003.08.015

  486. 486.

    Ding X, et al. Microglia enhanced the angiogenesis, migration and proliferation of co-cultured RMECs. BMC Ophthalmol. 2018;18:249.

    Not in our library10.1186/s12886-018-0886-z

  487. 487.

    Bai Y, et al. Muller cell-derived VEGF is a significant contributor to retinal neovascularization. J. Pathol. 2009;219:446-454.

    Not in our library10.1002/path.2611

  488. 488.

    Saint-Geniez M, Maldonado AE, D’Amore PA. VEGF expression and receptor activation in the choroid during development and in the adult. Invest. Ophthalmol. Vis. Sci. 2006;47:3135-3142.

    Not in our library10.1167/iovs.05-1229

  489. 489.

    Kim I, et al. Constitutive expression of VEGF, VEGFR-1, and VEGFR-2 in normal eyes. Invest. Ophthalmol. Vis. Sci. 1999;40:2115-2121.

    Not in our library

  490. 490.

    Mammadzada P, Corredoira PM, Andre H. The role of hypoxia-inducible factors in neovascular age-related macular degeneration: a gene therapy perspective. Cell Mol. Life Sci. 2020;77:819-833.

    Not in our library10.1007/s00018-019-03422-9

  491. 491.
  492. 492.

    Qaum T, et al. VEGF-initiated blood-retinal barrier breakdown in early diabetes. Invest. Ophthalmol. Vis. Sci. 2001;42:2408-2413.

    Not in our library

  493. 493.

    Aiello LP, et al. Vascular endothelial growth factor in ocular fluid of patients with diabetic retinopathy and other retinal disorders. New Engl. J. Med. 1994;331:1480-1487.

    Not in our library10.1056/nejm199412013312203

  494. 494.

    Ahuja S, et al. Serum vascular endothelial growth factor is a biomolecular biomarker of severity of diabetic retinopathy. Int. J. Retin. Vitreous. 2019;5:29.

    Not in our library10.1186/s40942-019-0179-6

  495. 495.

    Adamis AP, et al. Increased vascular endothelial growth factor levels in the vitreous of eyes with proliferative diabetic retinopathy. Am. J. Ophthalmol. 1994;118:445-450.

    Not in our library10.1016/s0002-9394(14)75794-0

  496. 496.

    Jin KL, Mao XO, Greenberg DA. Vascular endothelial growth factor: direct neuroprotective effect in in vitro ischemia. Proc. Natl. Acad. Sci. USA. 2000;97:10242-10247.

    Not in our library10.1073/pnas.97.18.10242

  497. 497.

    Kida T, Oku H, Osuka S, Horie T, Ikeda T. Hyperglycemia-induced VEGF and ROS production in retinal cells is inhibited by the mTOR inhibitor, rapamycin. Sci. Rep. 2021;11:1885.

    Not in our library10.1038/s41598-021-81482-3

  498. 498.

    Warren CM, Ziyad S, Briot A, Der A, Iruela-Arispe ML. A ligand-independent VEGFR2 signaling pathway limits angiogenic responses in diabetes. Sci. Signal. 2014;7:ra1.

    Not in our library10.1126/scisignal.2004235

  499. 499.

    Sun D, et al. Molecular imaging reveals elevated VEGFR-2 expression in retinal capillaries in diabetes: a novel biomarker for early diagnosis. FASEB J. 2014;28:3942-3951.

    Not in our library10.1096/fj.14-251934

  500. 500.

    Zhao B, Smith G, Cai J, Ma A, Boulton M. Vascular endothelial growth factor C promotes survival of retinal vascular endothelial cells via vascular endothelial growth factor receptor-2. Br. J. Ophthalmol. 2007;91:538-545.

    Not in our library10.1136/bjo.2006.101543

  501. 501.

    Harhaj NS, et al. VEGF activation of protein kinase C stimulates occludin phosphorylation and contributes to endothelial permeability. Invest. Ophthalmol. Vis. Sci. 2006;47:5106-5115.

    Not in our library10.1167/iovs.06-0322

  502. 502.

    Murakami T, Felinski EA, Antonetti DA. Occludin phosphorylation and ubiquitination regulate tight junction trafficking and vascular endothelial growth factor-induced permeability. J. Biol. Chem. 2009;284:21036-21046.

    Not in our library10.1074/jbc.m109.016766

  503. 503.

    Lupo G, et al. Role of phospholipases A2 in diabetic retinopathy: in vitro and in vivo studies. Biochem. Pharmacol. 2013;86:1603-1613.

    Not in our library10.1016/j.bcp.2013.09.008

  504. 504.

    Murakami T, Frey T, Lin C, Antonetti DA. Protein kinase cbeta phosphorylates occludin regulating tight junction trafficking in vascular endothelial growth factor-induced permeability in vivo. Diabetes. 2012;61:1573-1583.

    Not in our library10.2337/db11-1367

  505. 505.

    Lu JM, Zhang ZZ, Ma X, Fang SF, Qin XH. Repression of microRNA-21 inhibits retinal vascular endothelial cell growth and angiogenesis via PTEN dependent-PI3K/Akt/VEGF signaling pathway in diabetic retinopathy. Exp. Eye Res. 2020;190:107886.

    Not in our library10.1016/j.exer.2019.107886

  506. 506.

    Abhary S, et al. Common sequence variation in the VEGFA gene predicts risk of diabetic retinopathy. Invest. Ophthalmol. Vis. Sci. 2009;50:5552-5558.

    Not in our library10.1167/iovs.09-3694

  507. 507.

    Tetikoglu M, Yuksel Z, Aktas S, Sagdik HM, Ozcura F. VEGF-A gene polymorphisms and responses to intravitreal ranibizumab treatment in patients with diabetic macular edema. Int. Ophthalmol. 2018;38:2381-2388.

    Not in our library10.1007/s10792-017-0738-5

  508. 508.

    Wu F, et al. Correlation of aqueous, vitreous, and plasma cytokine levels in patients with proliferative diabetic retinopathy. Invest. Ophthalmol. Vis. Sci. 2020;61:26.

    Not in our library10.1167/iovs.61.2.26

  509. 509.

    Mesquita J, et al. Evaluation of the growth factors VEGF-a and VEGF-B in the vitreous and serum of patients with macular and retinal vascular diseases. Growth Factors. 2018;36:48-57.

    Not in our library10.1080/08977194.2018.1477140

  510. 510.

    Huang D, et al. VEGF-B inhibits hyperglycemia- and Macugen-induced retinal apoptosis. Sci. Rep. 2016;6:26059.

    Not in our library10.1038/srep26059

  511. 511.

    Xu Y, et al. VEGF-B prevents chronic hyperglycemia-induced retinal vascular leakage by regulating the CDC42-ZO1/VE-cadherin pathway. FASEB J. 2024;38:e70019.

    Not in our library10.1096/fj.202300987rr

  512. 512.

    Mitamura Y, et al. Vitreous levels of placenta growth factor and vascular endothelial growth factor in patients with proliferative diabetic retinopathy. Diab. Care. 2002;25:2352.

    Not in our library10.2337/diacare.25.12.2352

  513. 513.

    Nguyen QD, et al. Placental growth factor and its potential role in diabetic retinopathy and other ocular neovascular diseases. Acta Ophthalmol. 2018;96:e1-e9.

    Not in our library10.1111/aos.13325

  514. 514.

    Van Bergen T, et al. The role of placental growth factor (PlGF) and its receptor system in retinal vascular diseases. Prog. Retin. Eye Res. 2019;69:116-136.

    Not in our library10.1016/j.preteyeres.2018.10.006

  515. 515.

    Miyamoto N, et al. Placental growth factor-1 and epithelial haemato-retinal barrier breakdown: potential implication in the pathogenesis of diabetic retinopathy. Diabetologia. 2007;50:461-470.

    Not in our library10.1007/s00125-006-0539-2

  516. 516.

    Huang H, et al. Deletion of placental growth factor prevents diabetic retinopathy and is associated with Akt activation and HIF1alpha-VEGF pathway inhibition. Diabetes. 2015;64:200-212.

    Not in our library10.2337/db14-0016

  517. 517.

    Kowalczuk L, et al. Placental growth factor contributes to micro-vascular abnormalization and blood-retinal barrier breakdown in diabetic retinopathy. PLoS ONE. 2011;6:e17462.

    Not in our library10.1371/journal.pone.0017462

  518. 518.

    Zhang X, et al. Dysregulated serum lipid metabolism promotes the occurrence and development of diabetic retinopathy associated with upregulated circulating levels of VEGF-A, VEGF-D, and PlGF. Front. Med. 2021;8:779413.

    Not in our library10.3389/fmed.2021.779413

  519. 519.

    Witmer AN, et al. Altered expression patterns of VEGF receptors in human diabetic retina and in experimental VEGF-induced retinopathy in monkey. Invest. Ophthalmol. Vis. Sci. 2002;43:849-857.

    Not in our library

  520. 520.

    Fleckenstein M, et al. Age-related macular degeneration. Nat. Rev. Dis. Prim. 2021;7:31.

    Not in our library10.1038/s41572-021-00265-2

  521. 521.

    Aiello LP. Targeting intraocular neovascularization and edema–one drop at a time. New Engl. J. Med. 2008;359:967-969.

    Not in our library10.1056/nejmcibr0804551

  522. 522.

    Zhang F, et al. VEGF-B is dispensable for blood vessel growth but critical for their survival, and VEGF-B targeting inhibits pathological angiogenesis. Proc. Natl. Acad. Sci. USA. 2009;106:6152-6157.

    Not in our library10.1073/pnas.0813061106

  523. 523.

    Zhou H, Zhao X, Wang S, Chen Y. Determination of vascular endothelial growth factor-B concentrations in aqueous humor and plasma of neovascular age-related macular degeneration and polypoidal choroidal vasculopathy patients before and after anti-VEGF therapy. Ophthalmol. Ther. 2023;12:827-837.

    Not in our library10.1007/s40123-022-00618-4

  524. 524.

    Ikeda Y, et al. The regulation of vascular endothelial growth factors (VEGF-A, -C, and -D) expression in the retinal pigment epithelium. Exp. Eye Res. 2006;83:1031-1040.

    Not in our library10.1016/j.exer.2006.05.007

  525. 525.

    Leitch IM, et al. Vascular endothelial growth factor C and D signaling pathways as potential targets for the treatment of neovascular age-related macular degeneration: a narrative review. Ophthalmol. Ther. 2024;13:1857-1875.

    Not in our library10.1007/s40123-024-00973-4

  526. 526.

    Cabral T, et al. Bevacizumab injection in patients with neovascular age-related macular degeneration increases angiogenic biomarkers. Ophthalmol. Retin. 2018;2:31-37.

    Not in our library10.1016/j.oret.2017.04.004

  527. 527.

    Nagineni CN, Kommineni VK, William A, Detrick B, Hooks JJ. Regulation of VEGF expression in human retinal cells by cytokines: implications for the role of inflammation in age-related macular degeneration. J. Cell. Physiol. 2012;227:116-126.

    Not in our library10.1002/jcp.22708

  528. 528.

    Zhou H, Zhao X, Yuan M, Chen Y. Comparison of cytokine levels in the aqueous humor of polypoidal choroidal vasculopathy and neovascular age-related macular degeneration patients. BMC Ophthalmol. 2020;20:15.

    Not in our library10.1186/s12886-019-1278-8

  529. 529.

    Jackson TL, et al. A randomized controlled trial of OPT-302, a VEGF-C/D inhibitor for neovascular age-related macular degeneration. Ophthalmology. 2023;130:588-597.

    Not in our library10.1016/j.ophtha.2023.02.001

  530. 530.

    Sawano A, et al. Flt-1, vascular endothelial growth factor receptor 1, is a novel cell surface marker for the lineage of monocyte-macrophages in humans. Blood. 2001;97:785-791.

    Not in our library10.1182/blood.v97.3.785

  531. 531.

    Crespo-Garcia S, et al. Inhibition of placenta growth factor reduces subretinal mononuclear phagocyte accumulation in choroidal neovascularization. Invest. Ophthalmol. Vis. Sci. 2017;58:4997-5006.

    Not in our library10.1167/iovs.16-21283

  532. 532.

    Huang H, Parlier R, Shen JK, Lutty GA, Vinores SA. VEGF receptor blockade markedly reduces retinal microglia/macrophage infiltration into laser-induced CNV. PLoS ONE. 2013;8:e71808.

    Not in our library10.1371/journal.pone.0071808

  533. 533.

    Marneros AG. NLRP3 inflammasome blockade inhibits VEGF-A-induced age-related macular degeneration. Cell Rep. 2013;4:945-958.

    Not in our library10.1016/j.celrep.2013.08.002

  534. 534.

    Saint-Geniez M, Kurihara T, Sekiyama E, Maldonado AE, D’Amore PA. An essential role for RPE-derived soluble VEGF in the maintenance of the choriocapillaris. Proc. Natl. Acad. Sci. USA. 2009;106:18751-18756.

    Not in our library10.1073/pnas.0905010106

  535. 535.

    Kurihara T, Westenskow PD, Bravo S, Aguilar E, Friedlander M. Targeted deletion of Vegfa in adult mice induces vision loss. J. Clin. Invest. 2012;122:4213-4217.

    Not in our library10.1172/jci65157

  536. 536.

    Howangyin KY, Silvestre JS. Diabetes mellitus and ischemic diseases: molecular mechanisms of vascular repair dysfunction. Arterioscler. Thromb. Vasc. Biol. 2014;34:1126-1135.

    Not in our library10.1161/atvbaha.114.303090

  537. 537.

    Brissova M, et al. Pancreatic islet production of vascular endothelial growth factor-A is essential for islet vascularization, revascularization, and function. Diabetes. 2006;55:2974-2985.

    Not in our library10.2337/db06-0690

  538. 538.

    Watada H. Role of VEGF-A in pancreatic beta cells. Endocr. J. 2010;57:185-191.

    Not in our library10.1507/endocrj.k09e-035

  539. 539.

    Iwashita N, et al. Impaired insulin secretion in vivo but enhanced insulin secretion from isolated islets in pancreatic beta cell-specific vascular endothelial growth factor-A knock-out mice. Diabetologia. 2007;50:380-389.

    Not in our library10.1007/s00125-006-0512-0

  540. 540.

    Jansson L, Andersson A, Bodin B, Kallskog O. Pancreatic islet blood flow during euglycaemic, hyperinsulinaemic clamp in anaesthetized rats. Acta Physiol. 2007;189:319-324.

    Not in our library10.1111/j.1748-1716.2006.01666.x

  541. 541.

    Xiao X, et al. Hypoglycemia reduces vascular endothelial growth factor A production by pancreatic beta cells as a regulator of beta cell mass. J. Biol. Chem. 2013;288:8636-8646.

    Not in our library10.1074/jbc.m112.422949

  542. 542.

    Agudo J, et al. Vascular endothelial growth factor-mediated islet hypervascularization and inflammation contribute to progressive reduction of beta-cell mass. Diabetes. 2012;61:2851-2861.

    Not in our library10.2337/db12-0134

  543. 543.

    Kizub IV, Klymenko KI, Soloviev AI. Protein kinase C in enhanced vascular tone in diabetes mellitus. Int. J. Cardiol. 2014;174:230-242.

    Not in our library10.1016/j.ijcard.2014.04.117

  544. 544.

    Waltenberger J, Lange J, Kranz A. Vascular endothelial growth factor-A-induced chemotaxis of monocytes is attenuated in patients with diabetes mellitus: a potential predictor for the individual capacity to develop collaterals. Circulation. 2000;102:185-190.

    Not in our library10.1161/01.cir.102.2.185

  545. 545.

    Brissova M, et al. Islet microenvironment, modulated by vascular endothelial growth factor-A signaling, promotes beta cell regeneration. Cell Metab. 2014;19:498-511.

    Not in our library10.1016/j.cmet.2014.02.001

  546. 546.

    De Leu N, et al. Short-term overexpression of VEGF-A in mouse beta cells indirectly stimulates their proliferation and protects against diabetes. Diabetologia. 2014;57:140-147.

    Not in our library10.1007/s00125-013-3076-9

  547. 547.

    Staels W, Heremans Y, Heimberg H, De Leu N. VEGF-A and blood vessels: a beta cell perspective. Diabetologia. 2019;62:1961-1968.

    Not in our library10.1007/s00125-019-4969-z

  548. 548.

    Hagberg CE, et al. Targeting VEGF-B as a novel treatment for insulin resistance and type 2 diabetes. Nature. 2012;490:426-430.

    Not in our library10.1038/nature11464

  549. 549.

    Brunner LM, et al. Promotion of lymphangiogenesis by targeted delivery of VEGF-C improves diabetic wound healing. Cells. 2023;12:472.

    Not in our library10.3390/cells12030472

  550. 550.

    Natesan V, Kim SJ. Diabetic nephropathy—a review of risk factors, progression, mechanism, and dietary management. Biomol. Ther. 2021;29:365-372.

    Not in our library10.4062/biomolther.2020.204

  551. 551.
  552. 552.

    Simon M, et al. Expression of vascular endothelial growth factor and its receptors in human renal ontogenesis and in adult kidney. Am. J. Physiol. 1995;268:F240-F250.

    Not in our library10.1152/ajprenal.1995.268.2.f240

  553. 553.

    Brown LF, et al. Vascular permeability factor mRNA and protein expression in human kidney. Kidney Int. 1992;42:1457-1461.

    Not in our library10.1038/ki.1992.441

  554. 554.

    Breier G, Albrecht U, Sterrer S, Risau W. Expression of vascular endothelial growth factor during embryonic angiogenesis and endothelial cell differentiation. Development. 1992;114:521-532.

    Not in our library10.1242/dev.114.2.521

  555. 555.

    Thomas S, et al. Vascular endothelial growth factor receptors in human mesangium in vitro and in glomerular disease. J. Am. Soc. Nephrol. 2000;11:1236-1243.

    Not in our library10.1681/asn.v1171236

  556. 556.

    Kanellis J, Fraser S, Katerelos M, Power DA. Vascular endothelial growth factor is a survival factor for renal tubular epithelial cells. Am. J. Physiol. Ren. Physiol. 2000;278:F905-F915.

    Not in our library10.1152/ajprenal.2000.278.6.f905

  557. 557.

    Kim NH, et al. Vascular endothelial growth factor (VEGF) and soluble VEGF receptor FLT-1 in diabetic nephropathy. Kidney Int. 2005;67:167-177.

    Not in our library10.1111/j.1523-1755.2005.00067.x

  558. 558.

    Kanesaki Y, et al. Vascular endothelial growth factor gene expression is correlated with glomerular neovascularization in human diabetic nephropathy. Am. J. Kidney Dis. 2005;45:288-294.

    Not in our library10.1053/j.ajkd.2004.09.020

  559. 559.

    Huang H, et al. Effect of fosinopril on chemerin and VEGF expression in diabetic nephropathy rats. Int. J. Clin. Exp. Pathol. 2015;8:11470-11474.

    Not in our library

  560. 560.

    Cha DR, et al. Vascular endothelial growth factor is increased during early stage of diabetic nephropathy in type II diabetic rats. J. Endocrinol. 2004;183:183-194.

    Not in our library10.1677/joe.1.05647

  561. 561.

    Nakagawa T, et al. Diabetic endothelial nitric oxide synthase knockout mice develop advanced diabetic nephropathy. J. Am. Soc. Nephrol. 2007;18:539-550.

    Not in our library10.1681/asn.2006050459

  562. 562.

    Vriese AS, et al. Antibodies against vascular endothelial growth factor improve early renal dysfunction in experimental diabetes. J. Am. Soc. Nephrol. 2001;12:993-1000.

    Not in our library10.1681/asn.v125993

  563. 563.

    Sung SH, et al. Blockade of vascular endothelial growth factor signaling ameliorates diabetic albuminuria in mice. J. Am. Soc. Nephrol. 2006;17:3093-3104.

    Not in our library10.1681/asn.2006010064

  564. 564.

    Weis SM, Cheresh DA. Pathophysiological consequences of VEGF-induced vascular permeability. Nature. 2005;437:497-504.

    Not in our library10.1038/nature03987

  565. 565.

    Falkevall A, et al. Reducing VEGF-B signaling ameliorates renal lipotoxicity and protects against diabetic kidney disease. Cell Metab. 2017;25:713-726.

    Not in our library10.1016/j.cmet.2017.01.004

  566. 566.

    Wei Y, et al. Increased serum VEGF-B level is associated with renal function impairment in patients with type 2 diabetes. Front. Endocrinol. 2022;13:862545.

    Not in our library10.3389/fendo.2022.862545

  567. 567.
  568. 568.

    Zarjou A, et al. Dynamic signature of lymphangiogenesis during acute kidney injury and chronic kidney disease. Lab. Investig. 2019;99:1376-1388.

    Not in our library10.1038/s41374-019-0259-0

  569. 569.

    Foster RR, et al. VEGF-C promotes survival in podocytes. Am. J. Physiol. Ren. Physiol. 2006;291:F196-F207.

    Not in our library10.1152/ajprenal.00431.2005

  570. 570.

    Foster RR, et al. Vascular endothelial growth factor-C, a potential paracrine regulator of glomerular permeability, increases glomerular endothelial cell monolayer integrity and intracellular calcium. Am. J. Pathol. 2008;173:938-948.

    Not in our library10.2353/ajpath.2008.070416

  571. 571.

    Onions KL, et al. VEGFC reduces glomerular albumin permeability and protects against alterations in VEGF receptor expression in diabetic nephropathy. Diabetes. 2019;68:172-187.

    Not in our library10.2337/db18-0045

  572. 572.

    Tanabe K, Wada J, Sato Y. Targeting angiogenesis and lymphangiogenesis in kidney disease. Nat. Rev. Nephrol. 2020;16:289-303.

    Not in our library10.1038/s41581-020-0260-2

  573. 573.

    Nguyen TTU, Kim H, Chae YJ, Jung JH, Kim W. Serum VEGF-D level is correlated with renal dysfunction and proteinuria in patients with diabetic chronic kidney disease. Medicine. 2022;101:e28804.

    Not in our library10.1097/md.0000000000028804

  574. 574.
  575. 575.

    Person F, et al. Bevacizumab-associated glomerular microangiopathy. Mod. Pathol. 2019;32:684-700.

    Not in our library10.1038/s41379-018-0186-4

  576. 576.

    Iruela-Arispe L, et al. Participation of glomerular endothelial cells in the capillary repair of glomerulonephritis. Am. J. Pathol. 1995;147:1715-1727.

    Not in our library

  577. 577.

    Masuda Y, et al. Vascular endothelial growth factor enhances glomerular capillary repair and accelerates resolution of experimentally induced glomerulonephritis. Am. J. Pathol. 2001;159:599-608.

    Not in our library10.1016/s0002-9440(10)61731-2

  578. 578.

    Guan F, Villegas G, Teichman J, Mundel P, Tufro A. Autocrine VEGF-A system in podocytes regulates podocin and its interaction with CD2AP. Am. J. Physiol. Ren. Physiol. 2006;291:F422-F428.

    Not in our library10.1152/ajprenal.00448.2005

  579. 579.

    Maurice J, Manousou P. Non-alcoholic fatty liver disease. Clin. Med. 2018;18:245-250.

    Not in our library10.7861/clinmedicine.18-3-245

  580. 580.

    Chalasani N, et al. The diagnosis and management of nonalcoholic fatty liver disease: Practice guidance from the American Association for the Study of Liver Diseases. Hepatology. 2018;67:328-357.

    Not in our library10.1002/hep.29367

  581. 581.

    Yoshiji H, et al. Vascular endothelial growth factor and receptor interaction is a prerequisite for murine hepatic fibrogenesis. Gut. 2003;52:1347-1354.

    Not in our library10.1136/gut.52.9.1347

  582. 582.

    Lei L, Ei Mourabit H, Housset C, Cadoret A, Lemoinne S. Role of angiogenesis in the pathogenesis of NAFLD. J. Clin. Med. 2021;10:1338.

    Not in our library10.3390/jcm10071338

  583. 583.

    Li YQ, Xin L, Zhao YC, Li SQ, Li YN. Role of vascular endothelial growth factor B in nonalcoholic fatty liver disease and its potential value. World J. Hepatol. 2023;15:786-796.

    Not in our library10.4254/wjh.v15.i6.786

  584. 584.

    Coulon S, et al. Evaluation of inflammatory and angiogenic factors in patients with non-alcoholic fatty liver disease. Cytokine. 2012;59:442-449.

    Not in our library10.1016/j.cyto.2012.05.001

  585. 585.

    Yilmaz Y, et al. Circulating levels of vascular endothelial growth factor A and its soluble receptor in patients with biopsy-proven nonalcoholic fatty liver disease. Arch. Med. Res. 2011;42:38-43.

    Not in our library10.1016/j.arcmed.2010.12.001

  586. 586.

    Shen H, et al. Hepatocyte-derived VEGFA accelerates the progression of non-alcoholic fatty liver disease to hepatocellular carcinoma via activating hepatic stellate cells. Acta Pharmacol. Sin. 2022;43:2917-2928.

    Not in our library10.1038/s41401-022-00907-5

  587. 587.

    Coulon S, et al. Role of vascular endothelial growth factor in the pathophysiology of nonalcoholic steatohepatitis in two rodent models. Hepatology. 2013;57:1793-1805.

    Not in our library10.1002/hep.26219

  588. 588.

    Falkevall A, et al. Inhibition of VEGF-B signaling prevents non-alcoholic fatty liver disease development by targeting lipolysis in the white adipose tissue. J. Hepatol. 2023;78:901-913.

    Not in our library10.1016/j.jhep.2023.01.014

  589. 589.

    Osorio-Conles O, et al. A distinctive NAFLD signature in adipose tissue from women with severe obesity. Int. J. Mol. Sci. 2021;22:10541.

    Not in our library10.3390/ijms221910541

  590. 590.

    Hong W, et al. Prediction of VEGF-C as a key target of pure total flavonoids from citrus against NAFLD in mice via network pharmacology. Front. Pharmacol. 2019;10:582.

    Not in our library10.3389/fphar.2019.00582

  591. 591.

    Harris ED. Rheumatoid arthritis. Pathophysiology and implications for therapy. New Engl. J. Med. 1990;322:1277-1289.

    Not in our library10.1056/nejm199005033221805

  592. 592.

    Marrelli A, et al. Angiogenesis in rheumatoid arthritis: a disease specific process or a common response to chronic inflammation? Autoimmun. Rev. 2011;10:595-598.

    Not in our library10.1016/j.autrev.2011.04.020

  593. 593.

    Giatromanolaki A, et al. Upregulated hypoxia inducible factor-1alpha and -2alpha pathway in rheumatoid arthritis and osteoarthritis. Arthritis Res. Ther. 2003;5:R193-R201.

    Not in our library10.1186/ar756

  594. 594.

    Yoo SA, Kwok SK, Kim WU. Proinflammatory role of vascular endothelial growth factor in the pathogenesis of rheumatoid arthritis: prospects for therapeutic intervention. Mediators Inflamm. 2008;2008:129873.

    Not in our library10.1155/2008/129873

  595. 595.

    Kasama T, et al. Expression of vascular endothelial growth factor by synovial fluid neutrophils in rheumatoid arthritis (RA). Clin. Exp. Immunol. 2000;121:533-538.

    Not in our library10.1046/j.1365-2249.2000.01272.x

  596. 596.

    Lee SS, et al. Vascular endothelial growth factor levels in the serum and synovial fluid of patients with rheumatoid arthritis. Clin. Exp. Rheumatol. 2001;19:321-324.

    Not in our library

  597. 597.

    Harada M, et al. Vascular endothelial growth factor in patients with rheumatoid arthritis. Scand. J. Rheumatol. 1998;27:377-380.

    Not in our library10.1080/03009749850154429

  598. 598.

    Cheng WX, et al. Genistein inhibits angiogenesis developed during rheumatoid arthritis through the IL-6/JAK2/STAT3/VEGF signalling pathway. J. Orthop. Transl. 2020;22:92-100.

    Not in our library10.1016/j.jot.2019.07.007

  599. 599.

    Mould AW, et al. Vegfb gene knockout mice display reduced pathology and synovial angiogenesis in both antigen-induced and collagen-induced models of arthritis. Arthritis Rheum. 2003;48:2660-2669.

    Not in our library10.1002/art.11232

  600. 600.

    Zhou Q, et al. Vascular endothelial growth factor C attenuates joint damage in chronic inflammatory arthritis by accelerating local lymphatic drainage in mice. Arthritis Rheum. 2011;63:2318-2328.

    Not in our library10.1002/art.30421

  601. 601.

    Miotla J, Maciewicz R, Kendrew J, Feldmann M, Paleolog E. Treatment with soluble VEGF receptor reduces disease severity in murine collagen-induced arthritis. Lab. Investig. 2000;80:1195-1205.

    Not in our library10.1038/labinvest.3780127

  602. 602.

    Sone H, et al. Neutralization of vascular endothelial growth factor prevents collagen-induced arthritis and ameliorates established disease in mice. Biochem. Biophys. Res. Commun. 2001;281:562-568.

    Not in our library10.1006/bbrc.2001.4395

  603. 603.

    Abdel-Maged AE, Gad AM, Wahdan SA, Azab SS. Efficacy and safety of Ramucirumab and methotrexate co-therapy in rheumatoid arthritis experimental model: involvement of angiogenic and immunomodulatory signaling. Toxicol. Appl. Pharmacol. 2019;380:114702.

    Not in our library10.1016/j.taap.2019.114702

  604. 604.

    Armstrong AW, Read C. Pathophysiology, clinical presentation, and treatment of psoriasis: a review. JAMA. 2020;323:1945-1960.

    Not in our library10.1001/jama.2020.4006

  605. 605.

    Heidenreich R, Rocken M, Ghoreschi K. Angiogenesis drives psoriasis pathogenesis. Int. J. Exp. Pathol. 2009;90:232-248.

    Not in our library10.1111/j.1365-2613.2009.00669.x

  606. 606.

    Vybohova D, Adamicova K, Mellova Y, Heskova G. Microvascular changes in relation to inflammation and epidermal hyperplasia in chronic cutaneous lesions of psoriasis vulgaris. Histol. Histopathol. 2017;32:461-470.

    Not in our library10.14670/hh-11-811

  607. 607.

    Watanabe A, et al. Serum levels of angiogenesis-related factors in patients with psoriasis. J. Dermatol. 2023;50:222-228.

    Not in our library10.1111/1346-8138.16588

  608. 608.

    Wilgus TA, et al. Novel function for vascular endothelial growth factor receptor-1 on epidermal keratinocytes. Am. J. Pathol. 2005;167:1257-1266.

    Not in our library10.1016/s0002-9440(10)61213-8

  609. 609.

    Man XY, Yang XH, Cai SQ, Yao YG, Zheng M. Immunolocalization and expression of vascular endothelial growth factor receptors (VEGFRs) and neuropilins (NRPs) on keratinocytes in human epidermis. Mol. Med. 2006;12:127-136.

    Not in our library10.2119/2006-00024.man

  610. 610.

    Detmar M. The role of VEGF and thrombospondins in skin angiogenesis. J. Dermatol. Sci. 2000;24(Suppl 1):S78-S84.

    Not in our library10.1016/s0923-1811(00)00145-6

  611. 611.

    Henno A, et al. Altered expression of angiogenesis and lymphangiogenesis markers in the uninvolved skin of plaque-type psoriasis. Br. J. Dermatol. 2009;160:581-590.

    Not in our library10.1111/j.1365-2133.2008.08889.x

  612. 612.

    Liew SC, et al. Differential expression of the angiogenesis growth factors in psoriasis vulgaris. BMC Res. Notes. 2012;5:201.

    Not in our library10.1186/1756-0500-5-201

  613. 613.

    Xia YP, et al. Transgenic delivery of VEGF to mouse skin leads to an inflammatory condition resembling human psoriasis. Blood. 2003;102:161-168.

    Not in our library10.1182/blood-2002-12-3793

  614. 614.

    Schonthaler HB, Huggenberger R, Wculek SK, Detmar M, Wagner EF. Systemic anti-VEGF treatment strongly reduces skin inflammation in a mouse model of psoriasis. Proc. Natl. Acad. Sci. USA. 2009;106:21264-21269.

    Not in our library10.1073/pnas.0907550106

  615. 615.

    Dimitriadis E, et al. Pre-eclampsia. Nat. Rev. Dis. Prim. 2023;9:8.

    Not in our library10.1038/s41572-023-00417-6

  616. 616.

    Velegrakis A, Kouvidi E, Fragkiadaki P, Sifakis S. Predictive value of the sFlt‑1/PlGF ratio in women with suspected preeclampsia: an update (Review). Int. J. Mol. Med. 2023;52:89.

    Not in our library10.3892/ijmm.2023.5292

  617. 617.

    Gamliel M, et al. Trained memory of human uterine NK cells enhances their function in subsequent pregnancies. Immunity. 2018;48:951-962.

    Not in our library10.1016/j.immuni.2018.03.030

  618. 618.

    Chaiworapongsa T, et al. Evidence supporting a role for blockade of the vascular endothelial growth factor system in the pathophysiology of preeclampsia. Young Investigator Award. Am. J. Obstet. Gynecol. 2004;190:1541-1547.

    Not in our library10.1016/j.ajog.2004.03.043

  619. 619.

    Chaiworapongsa T, et al. Plasma soluble vascular endothelial growth factor receptor-1 concentration is elevated prior to the clinical diagnosis of pre-eclampsia. J. Matern. Fetal Neonatal Med. 2005;17:3-18.

    Not in our library10.1080/14767050400028816

  620. 620.

    Nagamatsu T, et al. Cytotrophoblasts up-regulate soluble fms-like tyrosine kinase-1 expression under reduced oxygen: an implication for the placental vascular development and the pathophysiology of preeclampsia. Endocrinology. 2004;145:4838-4845.

    Not in our library10.1210/en.2004-0533

  621. 621.

    Bridges JP, et al. Oxidative stress contributes to soluble fms-like tyrosine kinase-1 induced vascular dysfunction in pregnant rats. Am. J. Hypertens. 2009;22:564-568.

    Not in our library10.1038/ajh.2009.24

  622. 622.

    Maynard SE, et al. Excess placental soluble fms-like tyrosine kinase 1 (sFlt1) may contribute to endothelial dysfunction, hypertension, and proteinuria in preeclampsia. J. Clin. Invest. 2003;111:649-658.

    Not in our library10.1172/jci17189

  623. 623.

    Zeisler H, et al. Predictive value of the sFlt-1:PlGF ratio in women with suspected preeclampsia. New Engl. J. Med. 2016;374:13-22.

    Not in our library10.1056/nejmoa1414838

  624. 624.

    Levine RJ, et al. Circulating angiogenic factors and the risk of preeclampsia. New Engl. J. Med. 2004;350:672-683.

    Not in our library10.1056/nejmoa031884

  625. 625.

    Palmer KR, et al. Placental-specific sFLT-1 e15a protein is increased in preeclampsia, antagonizes vascular endothelial growth factor signaling, and has antiangiogenic activity. Hypertension. 2015;66:1251-1259.

    Not in our library10.1161/hypertensionaha.115.05883

  626. 626.

    Li Z, et al. Recombinant vascular endothelial growth factor 121 attenuates hypertension and improves kidney damage in a rat model of preeclampsia. Hypertension. 2007;50:686-692.

    Not in our library10.1161/hypertensionaha.107.092098

  627. 627.

    Gilbert JS, Babcock SA, Granger JP. Hypertension produced by reduced uterine perfusion in pregnant rats is associated with increased soluble fms-like tyrosine kinase-1 expression. Hypertension. 2007;50:1142-1147.

    Not in our library10.1161/hypertensionaha.107.096594

  628. 628.

    Gilbert JS, et al. Recombinant vascular endothelial growth factor 121 infusion lowers blood pressure and improves renal function in rats with placentalischemia-induced hypertension. Hypertension. 2010;55:380-385.

    Not in our library10.1161/hypertensionaha.109.141937

  629. 629.

    Spradley FT, et al. Placental growth factor administration abolishes placental ischemia-induced hypertension. Hypertension. 2016;67:740-747.

    Not in our library10.1161/hypertensionaha.115.06783

  630. 630.

    Davisson RL, et al. Discovery of a spontaneous genetic mouse model of preeclampsia. Hypertension. 2002;39:337-342.

    Not in our library10.1161/hy02t2.102904

  631. 631.

    Woods AK, et al. Adenoviral delivery of VEGF121 early in pregnancy prevents spontaneous development of preeclampsia in BPH/5 mice. Hypertension. 2011;57:94-102.

    Not in our library10.1161/hypertensionaha.110.160242

  632. 632.

    Waller JP, et al. Elastin-like polypeptide: VEGF-B fusion protein for treatment of preeclampsia. Hypertension. 2021;78:1888-1901.

    Not in our library10.1161/hypertensionaha.121.17713

  633. 633.

    Hastie R, et al. EGFR (Epidermal growth factor receptor) signaling and the mitochondria regulate sFlt-1 (soluble FMS-like tyrosine kinase-1) secretion. Hypertension. 2019;73:659-670.

    Not in our library10.1161/hypertensionaha.118.12300

  634. 634.

    Benagiano G, Brosens I, Lippi D. The history of endometriosis. Gynecol. Obstet. Invest. 2014;78:1-9.

    Not in our library10.1159/000358919

  635. 635.

    Zondervan KT, Becker CM, Missmer SA. Endometriosis. New Engl. J. Med. 2020;382:1244-1256.

    Not in our library10.1056/nejmra1810764

  636. 636.

    Taylor RN, Lebovic DI, Mueller MD. Angiogenic factors in endometriosis. Ann. NY Acad. Sci. 2002;955:89-100.

    Not in our library10.1111/j.1749-6632.2002.tb02769.x

  637. 637.

    Lebovic DI, et al. Ovarian steroid and cytokine modulation of human endometrial angiogenesis. Hum. Reprod. 2000;15(Suppl 3):67-77.

    Not in our library10.1093/humrep/15.suppl_3.67

  638. 638.

    Iruela-Arispe ML, Rodriguez-Manzaneque JC, Abu-Jawdeh G. Endometrial endothelial cells express estrogen and progesterone receptors and exhibit a tissue specific response to angiogenic growth factors. Microcirculation. 1999;6:127-140.

    Not in our library10.1080/713773947

  639. 639.

    Donnez J, Smoes P, Gillerot S, Casanas-Roux F, Nisolle M. Vascular endothelial growth factor (VEGF) in endometriosis. Hum. Reprod. 1998;13:1686-1690.

    Not in our library10.1093/humrep/13.6.1686

  640. 640.

    Bourlev V, et al. The relationship between microvessel density, proliferative activity and expression of vascular endothelial growth factor-A and its receptors in eutopic endometrium and endometriotic lesions. Reproduction. 2006;132:501-509.

    Not in our library10.1530/rep.1.01110

  641. 641.

    Hattori K, et al. Lymphangiogenesis induced by vascular endothelial growth factor receptor 1 signaling contributes to the progression of endometriosis in mice. J. Pharmacol. Sci. 2020;143:255-263.

    Not in our library10.1016/j.jphs.2020.05.003

  642. 642.

    Sekiguchi K, et al. VEGF Receptor 1-expressing macrophages recruited from bone marrow enhances angiogenesis in endometrial tissues. Sci. Rep. 2019;9:7037.

    Not in our library10.1038/s41598-019-43185-8

  643. 643.

    Filippi I, et al. Different expression of hypoxic and angiogenic factors in human endometriotic lesions. Reprod. Sci. 2016;23:492-497.

    Not in our library10.1177/1933719115607978

  644. 644.

    Dai W, et al. Hypoxia and the endometrium: an indispensable role for HIF-1alpha as therapeutic strategies. Redox Biol. 2024;73:103205.

    Not in our library10.1016/j.redox.2024.103205

  645. 645.

    Li J, et al. HIF1A and VEGF regulate each other by competing endogenous RNA mechanism and involve in the pathogenesis of peritoneal fibrosis. Pathol. Res. Pract. 2019;215:644-652.

    Not in our library10.1016/j.prp.2018.12.022

  646. 646.

    Keichel S, et al. Lymphangiogenesis in deep infiltrating endometriosis. Hum. Reprod. 2011;26:2713-2720.

    Not in our library10.1093/humrep/der230

  647. 647.

    Takehara M, et al. Vascular endothelial growth factor A and C gene expression in endometriosis. Hum. Pathol. 2004;35:1369-1375.

    Not in our library10.1016/j.humpath.2004.07.020

  648. 648.

    Xu H, et al. Vascular endothelial growth factor C is increased in endometrium and promotes endothelial functions, vascular permeability and angiogenesis and growth of endometriosis. Angiogenesis. 2013;16:541-551.

    Not in our library10.1007/s10456-013-9333-1

  649. 649.

    Li WN, et al. Extracellular vesicle-associated VEGF-C promotes lymphangiogenesis and immune cells infiltration in endometriosis. Proc. Natl. Acad. Sci. USA. 2020;117:25859-25868.

    Not in our library10.1073/pnas.1920037117

  650. 650.

    Machado DE, Berardo PT, Palmero CY, Nasciutti LE. Higher expression of vascular endothelial growth factor (VEGF) and its receptor VEGFR-2 (Flk-1) and metalloproteinase-9 (MMP-9) in a rat model of peritoneal endometriosis is similar to cancer diseases. J. Exp. Clin. Cancer Res. 2010;29:4.

    Not in our library10.1186/1756-9966-29-4

  651. 651.

    Yildiz C, et al. Effects of pazopanib, sunitinib, and sorafenib, anti-VEGF agents, on the growth of experimental endometriosis in rats. Reprod. Sci. 2015;22:1445-1451.

    Not in our library10.1177/1933719115584448

  652. 652.

    Hurwitz H, et al. Bevacizumab plus irinotecan, fluorouracil, and leucovorin for metastatic colorectal cancer. New Engl. J. Med. 2004;350:2335-2342.

    Not in our library10.1056/nejmoa032691

  653. 653.

    Ellis LM, Hicklin DJ. VEGF-targeted therapy: mechanisms of anti-tumour activity. Nat. Rev. Cancer. 2008;8:579-591.

    Not in our library10.1038/nrc2403

  654. 654.

    Holash J, et al. VEGF-Trap: a VEGF blocker with potent antitumor effects. Proc. Natl. Acad. Sci. USA. 2002;99:11393-11398.

    Not in our library10.1073/pnas.172398299

  655. 655.

    Van Cutsem E, et al. Addition of aflibercept to fluorouracil, leucovorin, and irinotecan improves survival in a phase III randomized trial in patients with metastatic colorectal cancer previously treated with an oxaliplatin-based regimen. J. Clin. Oncol. 2012;30:3499-3506.

    Not in our library10.1200/jco.2012.42.8201

  656. 656.

    Ray-Coquard I, et al. Olaparib plus bevacizumab as first-line maintenance in ovarian cancer. New Engl. J. Med. 2019;381:2416-2428.

    Not in our library10.1056/nejmoa1911361

  657. 657.

    Kopetz S, et al. Encorafenib, binimetinib, and cetuximab in BRAF V600E-mutated colorectal cancer. New Engl. J. Med. 2019;381:1632-1643.

    Not in our library10.1056/nejmoa1908075

  658. 658.

    Garon EB, et al. Ramucirumab plus erlotinib versus placebo plus erlotinib in previously untreated EGFR-mutated metastatic non-small-cell lung cancer (RELAY): exploratory analysis of next-generation sequencing results. ESMO Open. 2023;8:101580.

    Not in our library10.1016/j.esmoop.2023.101580

  659. 659.

    Zhu AX, et al. Ramucirumab after sorafenib in patients with advanced hepatocellular carcinoma and increased α-fetoprotein concentrations (REACH-2): a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Oncol. 2019;20:282-296.

    Not in our library10.1016/s1470-2045(18)30937-9

  660. 660.

    Wang F, et al. Combined anti-PD-1, HDAC inhibitor and anti-VEGF for MSS/pMMR colorectal cancer: a randomized phase 2 trial. Nat. Med. 2024;30:1035-1043.

    Not in our library10.1038/s41591-024-02813-1

  661. 661.

    Ferrara N, Damico L, Shams N, Lowman H, Kim R. Development of ranibizumab, an anti-vascular endothelial growth factor antigen binding fragment, as therapy for neovascular age-related macular degeneration. Retina. 2006;26:859-870.

    Not in our library10.1097/01.iae.0000242842.14624.e7

  662. 662.

    Dugel PU, et al. HAWK and HARRIER: phase 3, multicenter, randomized, double-masked trials of brolucizumab for neovascular age-related macular degeneration. Ophthalmology. 2020;127:72-84.

    Not in our library10.1016/j.ophtha.2019.04.017

  663. 663.

    Therapeutics, O. Outlook Therapeutics® Announces Preliminary Topline Results of NORSE EIGHT Clinical Trial (New Jersey, 2024).

    Not in our library

  664. 664.

    Therapeutics, O. Outlook Therapeutics® Announces NICE Recommendation of LYTENAVA™ (bevacizumabgamma) for the Treatment of Wet AMD (New Jersey, 2024).

    Not in our library

  665. 665.

    Caine GJ, Stonelake PS, Lip GY, Blann AD. Changes in plasma vascular endothelial growth factor, angiopoietins, and their receptors following surgery for breast cancer. Cancer Lett. 2007;248:131-136.

    Not in our library10.1016/j.canlet.2006.06.011

  666. 666.

    Chi Y, et al. Role of Angiopoietin/Tie2 system in sepsis: a potential therapeutic target. Clin. Appl. Thromb. Hemost. 2024;30:10760296241238010.

    Not in our library10.1177/10760296241238010

  667. 667.

    Ha TY. MicroRNAs in human diseases: from cancer to cardiovascular disease. Immune Netw. 2011;11:135-154.

    Not in our library10.4110/in.2011.11.3.135

  668. 668.

    Gorenjak V, et al. Epigenome-wide association study in healthy individuals identifies significant associations with DNA methylation and PBMC extract VEGF-A concentration. Clin. Epigenetics. 2020;12:79.

    Not in our library10.1186/s13148-020-00874-w

  669. 669.
  670. 670.
  671. 671.
  672. 672.

    Werner N, et al. Circulating endothelial progenitor cells and cardiovascular outcomes. New Engl. J. Med. 2005;353:999-1007.

    Not in our library10.1056/nejmoa043814

  673. 673.

    Lee PS, Poh KK. Endothelial progenitor cells in cardiovascular diseases. World J. Stem Cells. 2014;6:355-366.

    Not in our library10.4252/wjsc.v6.i3.355

  674. 674.

    Liu X, et al. Endothelial progenitor cells (EPCs) mobilized and activated by neurotrophic factors may contribute to pathologic neovascularization in diabetic retinopathy. Am. J. Pathol. 2010;176:504-515.

    Not in our library10.2353/ajpath.2010.081152

  675. 675.

    Klement G, et al. Continuous low-dose therapy with vinblastine and VEGF receptor-2 antibody induces sustained tumor regression without overt toxicity. J. Clin. Invest. 2000;105:R15-R24.

    Not in our library10.1172/jci8829

  676. 676.

    Bachelder RE, et al. Vascular endothelial growth factor is an autocrine survival factor for neuropilin-expressing breast carcinoma cells. Cancer Res. 2001;61:5736-5740.

    Not in our library

  677. 677.

    Xue Y, et al. Anti-VEGF agents confer survival advantages to tumor-bearing mice by improving cancer-associated systemic syndrome. Proc. Natl. Acad. Sci. USA. 2008;105:18513-18518.

    Not in our library10.1073/pnas.0807967105

  678. 678.

    Cao Y. Off-tumor target–beneficial site for antiangiogenic cancer therapy? Nat. Rev. Clin. Oncol. 2010;7:604-608.

    Not in our library10.1038/nrclinonc.2010.118

  679. 679.

    Gabrilovich DI, et al. Production of vascular endothelial growth factor by human tumors inhibits the functional maturation of dendritic cells. Nat. Med. 1996;2:1096-1103.

    Not in our library10.1038/nm1096-1096

  680. 680.

    Ohm JE, et al. VEGF inhibits T-cell development and may contribute to tumor-induced immune suppression. Blood. 2003;101:4878-4886.

    Not in our library10.1182/blood-2002-07-1956

  681. 681.

    Zhang D, et al. Antiangiogenic agents significantly improve survival in tumor-bearing mice by increasing tolerance to chemotherapy-induced toxicity. Proc. Natl. Acad. Sci. USA. 2011;108:4117-4122.

    Not in our library10.1073/pnas.1016220108

  682. 682.

    Pinto MP, Sotomayor P, Carrasco-Avino G, Corvalan AH, Owen GI. Escaping antiangiogenic therapy: strategies employed by cancer cells. Int. J. Mol. Sci. 2016;17:1489.

    Not in our library10.3390/ijms17091489

  683. 683.

    Belotti D, Pinessi D, Taraboletti G. Alternative vascularization mechanisms in tumor resistance to therapy. Cancers. 2021;13:1912.

    Not in our library10.3390/cancers13081912

  684. 684.

    Vimalraj S. A concise review of VEGF, PDGF, FGF, Notch, angiopoietin, and HGF signalling in tumor angiogenesis with a focus on alternative approaches and future directions. Int. J. Biol. Macromol. 2022;221:1428-1438.

    Not in our library10.1016/j.ijbiomac.2022.09.129

  685. 685.

    Finn RS, et al. Atezolizumab plus bevacizumab in unresectable hepatocellular carcinoma. New Engl. J. Med. 2020;382:1894-1905.

    Not in our library10.1056/nejmoa1915745

  686. 686.

    Rini BI, et al. Pembrolizumab plus axitinib versus sunitinib for advanced renal-cell carcinoma. New Engl. J. Med. 2019;380:1116-1127.

    Not in our library10.1056/nejmoa1816714

  687. 687.

    Reck M, et al. Atezolizumab plus bevacizumab and chemotherapy in non-small-cell lung cancer (IMpower150): key subgroup analyses of patients with EGFR mutations or baseline liver metastases in a randomised, open-label phase 3 trial. Lancet Respir. Med. 2019;7:387-401.

    Not in our library10.1016/s2213-2600(19)30084-0

  688. 688.

    Pal SK, et al. Atezolizumab plus cabozantinib versus cabozantinib monotherapy for patients with renal cell carcinoma after progression with previous immune checkpoint inhibitor treatment (CONTACT-03): a multicentre, randomised, open-label, phase 3 trial. Lancet. 2023;402:185-195.

    Not in our library10.1016/s0140-6736(23)00922-4

  689. 689.

    Kuo HY, Khan KA, Kerbel RS. Antiangiogenic-immune-checkpoint inhibitor combinations: lessons from phase III clinical trials. Nat. Rev. Clin. Oncol. 2024;21:468-482.

    Not in our library10.1038/s41571-024-00886-y

  690. 690.

    Khan KA, Kerbel RS. Improving immunotherapy outcomes with anti-angiogenic treatments and vice versa. Nat. Rev. Clin. Oncol. 2018;15:310-324.

    Not in our library10.1038/nrclinonc.2018.9

  691. 691.
  692. 692.

    Fukumura D, Kloepper J, Amoozgar Z, Duda DG, Jain RK. Enhancing cancer immunotherapy using antiangiogenics: opportunities and challenges. Nat. Rev. Clin. Oncol. 2018;15:325-340.

    Not in our library10.1038/nrclinonc.2018.29

  693. 693.

    Paulsen EE, et al. Impact of microvessel patterns and immune status in NSCLC: a non-angiogenic vasculature is an independent negative prognostic factor in lung adenocarcinoma. Front. Oncol. 2023;13:1157461.

    Not in our library10.3389/fonc.2023.1157461

  694. 694.

    Li Y, et al. Discovery of novel antibody-drug conjugates bearing tissue protease specific linker with both anti-angiogenic and strong cytotoxic effects. Bioorg. Chem. 2023;137:106575.

    Not in our library10.1016/j.bioorg.2023.106575

  695. 695.

    Caballero B, Sherman SJ, Falk T. Insights into the mechanisms involved in protective effects of VEGF-B in dopaminergic neurons. Parkinsons Dis. 2017;2017:4263795.

    Not in our library10.1155/2017/4263795

  696. 696.

    Ceci C, et al. The VEGFs/VEGFRs system in Alzheimer’s and Parkinson’s diseases: pathophysiological roles and therapeutic implications. Pharmacol. Res. 2024;201:107101.

    Not in our library10.1016/j.phrs.2024.107101

  697. 697.

    Liu Y, Dong G, Yu J, Liang P. Integration of single-cell and spatial transcriptomics reveals fibroblast subtypes in hepatocellular carcinoma: spatial distribution, differentiation trajectories, and therapeutic potential. J. Transl. Med. 2025;23:198.

    Not in our library10.1186/s12967-025-06192-0

  698. 698.
  699. 699.

    Hosaka K, et al. Therapeutic paradigm of dual targeting VEGF and PDGF for effectively treating FGF-2 off-target tumors. Nat. Commun. 2020;11:3704.

    Not in our library10.1038/s41467-020-17525-6

  700. 700.

    Stalmans I, et al. Arteriolar and venular patterning in retinas of mice selectively expressing VEGF isoforms. J. Clin. Invest. 2002;109:327-336.

    Not in our library10.1172/jci0214362

  701. 701.

    Nilsson, I. et al. Thrombolysis exacerbates cerebrovascular injury after ischemic stroke via a VEGF-B dependent effect on adipose lipolysis. Preprint at http://www.biorxiv.org/content/10.1101/2024.10.11.617532v1.full.pdf (2024).

    Not in our library

  702. 702.

    Ning FC, et al. VEGF-B ablation in pancreatic β-cells upregulates insulin expression without affecting glucose homeostasis or islet lipid uptake. Sci. Rep. 2020;10:923.

    Not in our library10.1038/s41598-020-57599-2

  703. 703.

    He J, et al. Autocrine VEGF-B signaling maintains lipid synthesis and mitochondrial fitness to support T cell immune responses. J. Clin. Invest. 2024;134:e176586.

    Not in our library10.1172/jci176586

  704. 704.

    Lim L, et al. Hemostasis stimulates lymphangiogenesis through release and activation of VEGFC. Blood. 2019;134:1764-1775.

    Not in our library10.1182/blood.2019001736

  705. 705.

    Ho VC, Duan LJ, Cronin C, Liang BT, Fong GH. Elevated vascular endothelial growth factor receptor-2 abundance contributes to increased angiogenesis in vascular endothelial growth factor receptor-1-deficient mice. Circulation. 2012;126:741-752.

    Not in our library10.1161/circulationaha.112.091603

  706. 706.

    Hiratsuka S, Minowa O, Kuno J, Noda T, Shibuya M. Flt-1 lacking the tyrosine kinase domain is sufficient for normal development and angiogenesis in mice. Proc. Natl. Acad. Sci. USA. 1998;95:9349-9354.

    Not in our library10.1073/pnas.95.16.9349

  707. 707.

    Okabe K, et al. Neurons limit angiogenesis by titrating VEGF in retina. Cell. 2014;159:584-596.

    Not in our library10.1016/j.cell.2014.09.025

  708. 708.

    Dellinger MT, Meadows SM, Wynne K, Cleaver O, Brekken RA. Vascular endothelial growth factor receptor-2 promotes the development of the lymphatic vasculature. PLoS ONE. 2013;8:e74686.

    Not in our library10.1371/journal.pone.0074686

  709. 709.

    Ferrara N, Hillan KJ, Gerber HP, Novotny W. Discovery and development of bevacizumab, an anti-VEGF antibody for treating cancer. Nat. Rev. Drug Discov. 2004;3:391-400.

    Not in our library10.1038/nrd1381

  710. 710.

    Mésange P, et al. Intrinsic bevacizumab resistance is associated with prolonged activation of autocrine VEGF signaling and hypoxia tolerance in colorectal cancer cells and can be overcome by nintedanib, a small molecule angiokinase inhibitor. Oncotarget. 2014;5:4709-4721.

    Not in our library10.18632/oncotarget.1671

  711. 711.

    Casak SJ, et al. FDA’s approval of the first biosimilar to bevacizumab. Clin. Cancer Res. 2018;24:4365-4370.

    Not in our library10.1158/1078-0432.ccr-18-0566

  712. 712.

    Javle M, Smyth EC, Chau I. Ramucirumab: successfully targeting angiogenesis in gastric cancer. Clin. Cancer Res. 2014;20:5875-5881.

    Not in our library10.1158/1078-0432.ccr-14-1071

  713. 713.

    Fuchs CS, et al. Biomarker analyses in REGARD gastric/GEJ carcinoma patients treated with VEGFR2-targeted antibody ramucirumab. Br. J. Cancer. 2016;115:974-982.

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  714. 714.

    Tiwari P. Ramucirumab: boon or bane. J. Egypt. Natl. Cancer Inst. 2016;28:133-140.

    Not in our library10.1016/j.jnci.2016.03.001

  715. 715.

    Blick SK, Keating GM, Wagstaff AJ. Ranibizumab. Drugs. 2007;67:1199-1206.

    Not in our library10.2165/00003495-200767080-00007

  716. 716.

    Shirley M. Faricimab: first approval. Drugs. 2022;82:825-830.

    Not in our library10.1007/s40265-022-01713-3

  717. 717.

    Stewart MW, Grippon S, Kirkpatrick P. Aflibercept. Nat. Rev. Drug Discov. 2012;11:269-270.

    Not in our library10.1038/nrd3700

  718. 718.

    Chung C, Pherwani N. Ziv-aflibercept: a novel angiogenesis inhibitor for the treatment of metastatic colorectal cancer. Am. J. Health Syst. Pharm. 2013;70:1887-1896.

    Not in our library10.2146/ajhp130143

  719. 719.

    Ng EW, et al. Pegaptanib, a targeted anti-VEGF aptamer for ocular vascular disease. Nat. Rev. Drug Discov. 2006;5:123-132.

    Not in our library10.1038/nrd1955

  720. 720.

    Bukowski RM, Yasothan U, Kirkpatrick P. Pazopanib. Nat. Rev. Drug Discov. 2010;9:17-18.

    Not in our library10.1038/nrd3073

  721. 721.

    Yokoyama N, et al. Activation of ERK1/2 causes pazopanib resistance via downregulation of DUSP6 in synovial sarcoma cells. Sci. Rep. 2017;7:45332.

    Not in our library10.1038/srep45332

  722. 722.

    Kane RC, et al. Sorafenib for the treatment of advanced renal cell carcinoma. Clin. Cancer Res. 2006;12:7271-7278.

    Not in our library10.1158/1078-0432.ccr-06-1249

  723. 723.

    Goodman VL, et al. Approval summary: sunitinib for the treatment of imatinib refractory or intolerant gastrointestinal stromal tumors and advanced renal cell carcinoma. Clin. Cancer Res. 2007;13:1367-1373.

    Not in our library10.1158/1078-0432.ccr-06-2328

  724. 724.

    Morais C. Sunitinib resistance in renal cell carcinoma. J. Kidney Cancer VHL. 2014;1:1-11.

    Not in our library10.15586/jkcvhl.2014.7

  725. 725.

    Makhov P, et al. Resistance to systemic therapies in clear cell renal cell carcinoma: mechanisms and management strategies. Mol. Cancer Ther. 2018;17:1355-1364.

    Not in our library10.1158/1535-7163.mct-17-1299

  726. 726.

    Makhov PB, et al. Modulation of Akt/mTOR signaling overcomes sunitinib resistance in renal and prostate cancer cells. Mol. Cancer Ther. 2012;11:1510-1517.

    Not in our library10.1158/1535-7163.mct-11-0907

  727. 727.

    Gross-Goupil M, François L, Quivy A, Ravaud A. Axitinib: a review of its safety and efficacy in the treatment of adults with advanced renal cell carcinoma. Clin. Med. Insights Oncol. 2013;7:269-277.

    Not in our library10.4137/cmo.s10594

  728. 728.

    Li W, et al. Knockdown of LINC00467 contributed to Axitinib sensitivity in hepatocellular carcinoma through miR-509-3p/PDGFRA axis. Gene Ther. 2021;28:634-645.

    Not in our library10.1038/s41434-020-0137-9

  729. 729.

    Singh H, et al. U.S. Food and Drug Administration Approval: cabozantinib for the treatment of advanced renal cell carcinoma. Clin. Cancer Res. 2017;23:330-335.

    Not in our library10.1158/1078-0432.ccr-16-1073

  730. 730.

    Hoy SM. Cabozantinib: a review of its use in patients with medullary thyroid cancer. Drugs. 2014;74:1435-1444.

    Not in our library10.1007/s40265-014-0265-x

  731. 731.

    Park KY, et al. Immune cell mediated cabozantinib resistance for patients with renal cell carcinoma. Integr. Biol. 2021;13:259-268.

    Not in our library10.1093/intbio/zyab018

  732. 732.

    Scott LJ. Lenvatinib: first global approval. Drugs. 2015;75:553-560.

    Not in our library10.1007/s40265-015-0383-0

  733. 733.

    Bo W, Chen Y. Lenvatinib resistance mechanism and potential ways to conquer. Front. Pharmacol. 2023;14:1153991.

    Not in our library10.3389/fphar.2023.1153991

  734. 734.

    Heo YA, Syed YY. Regorafenib: a review in hepatocellular carcinoma. Drugs. 2018;78:951-958.

    Not in our library10.1007/s40265-018-0932-4

  735. 735.

    Kehagias P, et al. Regorafenib induces senescence and epithelial-mesenchymal transition in colorectal cancer to promote drug resistance. Cells. 2022;11:3663.

    Not in our library10.3390/cells11223663

  736. 736.

    Wei N, Chu E, Wu SY, Wipf P, Schmitz JC. The cytotoxic effects of regorafenib in combination with protein kinase D inhibition in human colorectal cancer cells. Oncotarget. 2015;6:4745-4756.

    Not in our library10.18632/oncotarget.2938

  737. 737.

    Frampton JE. Vandetanib: in medullary thyroid cancer. Drugs. 2012;72:1423-1436.

    Not in our library10.2165/11209300-000000000-00000

  738. 738.

    Nakaoku T, et al. A secondary RET mutation in the activation loop conferring resistance to vandetanib. Nat. Commun. 2018;9:625.

    Not in our library10.1038/s41467-018-02994-7

  739. 739.

    Ichihara E, et al. Effects of vandetanib on lung adenocarcinoma cells harboring epidermal growth factor receptor T790M mutation in vivo. Cancer Res. 2009;69:5091-5098.

    Not in our library10.1158/0008-5472.can-08-4204

  740. 740.

    Tan FH, Putoczki TL, Stylli SS, Luwor RB. Ponatinib: a novel multi-tyrosine kinase inhibitor against human malignancies. OncoTargets Ther. 2019;12:635-645.

    Not in our library10.2147/ott.s189391

  741. 741.

    Eide CA, et al. Combining the allosteric inhibitor asciminib with ponatinib suppresses emergence of and restores efficacy against highly resistant BCR-ABL1 mutants. Cancer Cell. 2019;36:431-443.e435.

    Not in our library10.1016/j.ccell.2019.08.004

  742. 742.

    Li H, et al. Apatinib: a novel antiangiogenic drug in monotherapy or combination immunotherapy for digestive system malignancies. Front. Immunol. 2022;13:937307.

    Not in our library10.3389/fimmu.2022.937307

  743. 743.

    Zhou X, et al. Activated amino acid response pathway generates apatinib resistance by reprograming glutamine metabolism in non-small-cell lung cancer. Cell Death Dis. 2022;13:636.

    Not in our library10.1038/s41419-022-05079-y

  744. 744.

    Teng F, et al. DUSP1 induces apatinib resistance by activating the MAPK pathway in gastric cancer. Oncol. Rep. 2018;40:1203-1222.

    Not in our library10.3892/or.2018.6520

  745. 745.

    Fala L. Ofev (nintedanib): first tyrosine kinase inhibitor approved for the treatment of patients with idiopathic pulmonary fibrosis. Am. Health Drug Benefits. 2015;8:101-104.

    Not in our library

  746. 746.

    Englinger B, et al. Acquired nintedanib resistance in FGFR1-driven small cell lung cancer: role of endothelin-A receptor-activated ABCB1 expression. Oncotarget. 2016;7:50161-50179.

    Not in our library10.18632/oncotarget.10324

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