Potent SARS-CoV-2 neutralizing antibodies with therapeutic effects in two animal models.

ABSTRACT: The use of therapeutic neutralizing antibodies against SARS-CoV-2 infection has been highly effective. However, there remain few practical antibodies against viruses that are acquiring mutations. In this study, we created 494 monoclonal antibodies from patients with COVID-19-convalescent, and identified antibodies that exhibited the comparable neutralizing ability to clinically used antibodies in the neutralization assay using pseudovirus and authentic virus including variants of concerns. These antibodies have different profiles against various mutations, which were confirmed by cell-based assay and cryo-electron microscopy. To prevent antibody-dependent enhancement, N297A modification was introduced. Our antibodies showed a reduction of lung viral RNAs by therapeutic administration in a

SUBMITTER: Takeshita M 

PROVIDER: S-EPMC9664764 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature