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Transmissible SARS-CoV-2 variants with resistance to clinical protease inhibitors
Seyed Arad Moghadasi, Emmanuel Heilmann, Ahmed Magdy Khalil and 12 more
Science Advances · 2023
Abstract
Vaccines and drugs have helped reduce disease severity and blunt the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, ongoing virus transmission, continuous evolution, and increasing selective pressures have the potential to yield viral variants capable of resisting these interventions. Here, we investigate the susceptibility of natural variants of the main protease [M pro ; 3C-like protease (3CL pro )] of SARS-CoV-2 to protease inhibitors. Multiple single amino acid changes in M pro confer resistance to nirmatrelvir (the active component of Paxlovid). An additional clinical-stage inhibitor, ensitrelvir (Xocova), shows a different resistance mutation profile. Importantly, phylogenetic analyses indicate that several of these resistant variants have pre-existed the introduction of these drugs into the human population and are capable of spreading. These results encourage the monitoring of resistance variants and the development of additional protease inhibitors and other antiviral drugs with different mechanisms of action and resistance profiles for combinatorial therapy.
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Cited by papers we hold 3
- Naturally Occurring Mutations of SARS-CoV-2 Main Protease Confer Drug Resistance to Nirmatrelvir · 2023No notice
- SARS-CoV-2 3CL pro mutations selected in a VSV-based system confer resistance to nirmatrelvir, ensitrelvir, and GC376 · 2023No notice
- Fitness effects of mutations to SARS-CoV-2 proteins · 2023No notice
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