id author title date pages extension mime words sentences flesch summary cache txt cord-298172-iyxyennq Guo, Youjia Potent mouse monoclonal antibodies that block SARS-CoV-2 infection 2020-10-02 .txt text/plain 4557 295 49 Various recombinant monoclonal antibodies of human origin that neutralize SARS-CoV-2 infection have been isolated from convalescent patients and will be applied as therapies and prophylaxis. Here, we produced mouse anti-SARS-CoV-2 spike monoclonal antibodies that exhibit not only robust performance in immunoassays including western blotting, ELISA, immunofluorescence, and immunoprecipitation, but also neutralizing activity against SARS-CoV-2 infection in vitro. Among them, two antibodies were shown to attenuate the interaction of spike proteins with ACE2 and neutralized infection of VeroE6/TMPRSS2 cells by SARS-CoV-2. Mice were immunized with these recombinant spike proteins to generate antibodies against the SARS-CoV-2 virus, followed by cell fusion to generate a hybridoma-producing antibody. The performance of our antibodies in IP experiments prompted us to examine whether they were capable of inhibiting spike-ACE2 binding or even neutralizing SARS-CoV-2 infection. Our antibodies, S1D7 and S3D8, have been shown to attenuate the interaction of spike proteins with ACE2 and neutralize infection of VeroE6/TM2 cells by SARS-CoV-2. ./cache/cord-298172-iyxyennq.txt ./txt/cord-298172-iyxyennq.txt