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Synthetic Antibodies neutralize SARS-CoV-2 infection of mammalian cells
Shane Miersch; Mart Ustav; Zhijie Li; James B. Case; Safder Ganaie; Giulia Matusali; Francesca Colavita; Daniele Lapa; Maria R. Capobianchi; Giuseppe Novelli; Jang B. Gupta; Suresh Jain; Pier Paolo Pandolfi; Michael S. Diamond; Gaya Amarasinghe; James M. Rini; Sachdev S. Sidhu.
Afiliação
  • Shane Miersch; University of Toronto
  • Mart Ustav; University of Toronto
  • Zhijie Li; University of Toronto
  • James B. Case; Washington University School of Medicine
  • Safder Ganaie; Washington University School of Medicine
  • Giulia Matusali; Washington University School of Medicine
  • Francesca Colavita; National Institute for Infectious Diseases "L. Spallanzani" IRCCS
  • Daniele Lapa; National Institute for Infectious Diseases "L. Spallanzani" IRCCS
  • Maria R. Capobianchi; National Institute for Infectious Diseases "L. Spallanzani" IRCCS
  • Giuseppe Novelli; University of Rome
  • Jang B. Gupta; Intonation Research Laboratories
  • Suresh Jain; Intonation Research Laboratories
  • Pier Paolo Pandolfi; University of Turin
  • Michael S. Diamond; Washington University School of Medicine
  • Gaya Amarasinghe; Washington University School of Medicine
  • James M. Rini; University of Toronto
  • Sachdev S. Sidhu; University of Toronto
Preprint em Inglês | bioRxiv | ID: ppbiorxiv-137349
ABSTRACT
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.
Licença
cc_by_nd
Texto completo: Disponível Coleções: Preprints Base de dados: bioRxiv Idioma: Inglês Ano de publicação: 2020 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: bioRxiv Idioma: Inglês Ano de publicação: 2020 Tipo de documento: Preprint
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