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Development of neutralizing antibodies against SARS-CoV-2, using a high-throughput single-B-cell cloning method

Development of neutralizing antibodies against SARS-CoV-2, using a high-throughput single-B-cell... BackgroundRapid and efficient strategies are needed to discover neutralizing antibodies (nAbs) from B cells derived from virus-infected patients.MethodsHere, we report a high-throughput single-B-cell cloning method for high-throughput isolation of nAbs targeting diverse epitopes on the SARS-CoV-2-RBD (receptor binding domain) from convalescent COVID-19 patients. This method is simple, fast and highly efficient in generating SARS-CoV-2-neutralizing antibodies from COVID-19 patients’ B cells.ResultsUsing this method, we have developed multiple nAbs against distinct SARS-CoV-2-RBD epitopes. CryoEM and crystallography revealed precisely how they bind RBD. In live virus assay, these nAbs are effective in blocking viral entry to the host cells.ConclusionThis simple and efficient method may be useful in developing human therapeutic antibodies for other diseases and next pandemic. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Antibody Therapeutics Oxford University Press

Development of neutralizing antibodies against SARS-CoV-2, using a high-throughput single-B-cell cloning method

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References (87)

Publisher
Oxford University Press
Copyright
© The Author(s) 2023. Published by Oxford University Press on behalf of Antibody Therapeutics. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
eISSN
2516-4236
DOI
10.1093/abt/tbad002
Publisher site
See Article on Publisher Site

Abstract

BackgroundRapid and efficient strategies are needed to discover neutralizing antibodies (nAbs) from B cells derived from virus-infected patients.MethodsHere, we report a high-throughput single-B-cell cloning method for high-throughput isolation of nAbs targeting diverse epitopes on the SARS-CoV-2-RBD (receptor binding domain) from convalescent COVID-19 patients. This method is simple, fast and highly efficient in generating SARS-CoV-2-neutralizing antibodies from COVID-19 patients’ B cells.ResultsUsing this method, we have developed multiple nAbs against distinct SARS-CoV-2-RBD epitopes. CryoEM and crystallography revealed precisely how they bind RBD. In live virus assay, these nAbs are effective in blocking viral entry to the host cells.ConclusionThis simple and efficient method may be useful in developing human therapeutic antibodies for other diseases and next pandemic.

Journal

Antibody TherapeuticsOxford University Press

Published: Feb 17, 2023

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