Synthetic antibodies neutralize SARS-CoV-2 infection of mammalian cells

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Author(s)

Author Name

Shane Miersch

Mart Ustav

Zhijie Li

Published 2 Projects

Biochemistry Synthetic Biology

James B. Case

Published 1 Project

Biochemistry

Safder Ganaie

Published 2 Projects

Biochemistry Synthetic Biology

Giulia Matusali

Francesca Colavita

Daniele Lapa

Published 2 Projects

Immunology Biochemistry

Giuseppe Novelli

Published 2 Projects

Biochemistry Synthetic Biology

Jang B. Gupta

Published 2 Projects

Biochemistry Synthetic Biology

Suresh Jain

Published 2 Projects

Biochemistry Synthetic Biology

Pier Paolo Pandolfi

Published 2 Projects

Biochemistry Synthetic Biology

Michael Diamond

Gaya Amarasinghe

James M Rini

Published 2 Projects

Biochemistry Synthetic Biology

Sachdev S Sidhu

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Coronaviruses (CoV) are a large family of enveloped, RNA viruses that circulate in mammals and birds. Three highly pathogenic strains have caused zoonotic infections in humans that result in severe respiratory syndromes including the Middle East Respiratory Syndrome CoV (MERS), Severe Acute Respiratory Syndrome CoV (SARS), and the ongoing Coronavirus Disease 2019 (COVID-19) pandemic. Here, we describe a panel of synthetic monoclonal antibodies, built on a human IgG framework, that bind to the spike protein of SARS-CoV-2 (the causative agent of COVID-19), compete for ACE2 binding, and potently inhibit SARS-CoV-2. All antibodies that exhibited neutralization potencies at sub-nanomolar concentrations against SARS-CoV-2/USA/WA1 in Vero E6 cells, also bound to the receptor binding domain (RBD), suggesting competition for the host receptor ACE2. These antibodies represent strong immunotherapeutic candidates for treatment of COVID-19. ### Competing Interest Statement S.S, P.P.P and S.J, are cofounders of Virna Therapeutics. The company is developing novel therapies for COVID-19 and other viruses.

Biochemistry
Biochemistry 38 Projects