Identification of Potent Small Molecule Inhibitors of SARS-CoV-2 Entry

Autor: Pierre Baillargeon, Huihui Mou, S. Valente, Thomas D. Bannister, S. Jablonski, Timothy P. Spicer, Louis Scampavia, Lalit Batra, Michael Farzan, Christopher Rood, Tu-Trinh Nguyen, Mitchell V. Hull, J. Jablonski, Robert S. Adcock, Donghoon Chung, Emily Chen, X. Yu, Sultan Ullah, R. Rahaim, I. M. de Vera, Yuka Otsuka
Rok vydání: 2021
Předmět:
DOI: 10.1101/2021.08.05.455262
Popis: The severe acute respiratory syndrome coronavirus 2 responsible for COVID-19 remains a persistent threat to mankind, especially for the immunocompromised and elderly for which the vaccine may have limited effectiveness. Entry of SARS-CoV-2 requires a high affinity interaction of the viral spike protein with the cellular receptor angiotensin-converting enzyme 2. Novel mutations on the spike protein correlate with the high transmissibility of new variants of SARS-CoV-2, highlighting the need for small molecule inhibitors of virus entry into target cells. We report the identification of such inhibitors through a robust high-throughput screen testing 15,000 small molecules from unique libraries. Several leads were validated in a suite of mechanistic assays, including whole cell SARS-CoV-2 infectivity assays. The main lead compound, Calpeptin, was further characterized using SARS-CoV-1 and the novel SARS-CoV-2 variant entry assays, SARS-CoV-2 protease assays and molecular docking. This study reveals Calpeptin as a potent and specific inhibitor of SARS-CoV-2 and some variants.
Databáze: OpenAIRE