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An ACE2-dependent Sarbecovirus in Russian bats is resistant to SARS-CoV-2 vaccines.
Seifert, Stephanie N; Bai, Shuangyi; Fawcett, Stephen; Norton, Elizabeth B; Zwezdaryk, Kevin J; Robinson, James; Gunn, Bronwyn; Letko, Michael.
Afiliação
  • Seifert SN; Paul G. Allen School for Global Health, Washington State University, Pullman, Washington, United States of America.
  • Bai S; Paul G. Allen School for Global Health, Washington State University, Pullman, Washington, United States of America.
  • Fawcett S; Paul G. Allen School for Global Health, Washington State University, Pullman, Washington, United States of America.
  • Norton EB; Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America.
  • Zwezdaryk KJ; Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America.
  • Robinson J; Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana, United States of America.
  • Gunn B; Paul G. Allen School for Global Health, Washington State University, Pullman, Washington, United States of America.
  • Letko M; Paul G. Allen School for Global Health, Washington State University, Pullman, Washington, United States of America.
PLoS Pathog ; 18(9): e1010828, 2022 09.
Article em En | MEDLINE | ID: mdl-36136995
Spillover of sarbecoviruses from animals to humans has resulted in outbreaks of severe acute respiratory syndrome SARS-CoVs and the ongoing COVID-19 pandemic. Efforts to identify the origins of SARS-CoV-1 and -2 has resulted in the discovery of numerous animal sarbecoviruses-the majority of which are only distantly related to known human pathogens and do not infect human cells. The receptor binding domain (RBD) on sarbecoviruses engages receptor molecules on the host cell and mediates cell invasion. Here, we tested the receptor tropism and serological cross reactivity for RBDs from two sarbecoviruses found in Russian horseshoe bats. While these two viruses are in a viral lineage distinct from SARS-CoV-1 and -2, the RBD from one virus, Khosta 2, was capable of using human ACE2 to facilitate cell entry. Viral pseudotypes with a recombinant, SARS-CoV-2 spike encoding for the Khosta 2 RBD were resistant to both SARS-CoV-2 monoclonal antibodies and serum from individuals vaccinated for SARS-CoV-2. Our findings further demonstrate that sarbecoviruses circulating in wildlife outside of Asia also pose a threat to global health and ongoing vaccine campaigns against SARS-CoV-2.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Quirópteros / COVID-19 Tipo de estudo: Prognostic_studies Limite: Animals / Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Quirópteros / COVID-19 Tipo de estudo: Prognostic_studies Limite: Animals / Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article