SPIO processing in macrophages for MPI: The breast cancer MPI-SNLB-concept

Breast cancer (BC) is the most common cancer in women worldwide. We aim to develop a new sentinel lymph node biopsy (SLNB) method with superparamagnetic iron oxide nanoparticles (SPIOs) and magnetic particle imaging (MPI) in BC to avoid tissue damaging while axillary surgery. As we know from i.v. SPIO application in magnetic resonance imaging (MRI), macrophages (MP) are key role player in processing of SPIOs (e.g. in liver) causing a drop of signal intensity. But, knowledge lacks concerning enrichment processes of SPIOs after injection in breast tissue, the adjacent lymphatic tissues and associated cells, especially in BC and metastatic lymph nodes. We already evaluated the distribution of SPIOs in an in vivo healthy and tumor mouse model. Based on these studies we investigate the processing of the SPIOs in MP.

Abstract licence: CC BY-NC-ND

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