Nirmatrelvir-Resistant Mutations in SARS-CoV-2 Mpro Enhance Host Immune Evasion via Cleavage of NF-κB Essential Modulator

Thomas, M.; Hughes, T.

doi:10.1101/2024.10.18.619137

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bioRxiv · 10.1101/2024.10.18.619137

Nirmatrelvir-Resistant Mutations in SARS-CoV-2 Mpro Enhance Host Immune Evasion via Cleavage of NF-κB Essential Modulator

Thomas, M.·Hughes, T.

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Abstract

Nirmatrelvir is a SARS-CoV-2 Mpro inhibitor in Paxlovid. Patients treated with it often produce mutant viruses in which the Mpro resists Nirmatrelvir inhibition. A common interpretation is that the mutations allow the virus to escape inhibition, but here we report that these mutations enable the protease to more effectively cleave the host protein NF-kappa-B essential modulator (NEMO), which weakens the immune response, improves viral replication, and may contribute to long COVID.

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Thomas, M., Hughes, T.. 2024-10-19. Nirmatrelvir-Resistant Mutations in SARS-CoV-2 Mpro Enhance Host Immune Evasion via Cleavage of NF-κB Essential Modulator. https://doi.org/10.1101/2024.10.18.619137

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