PreprintCited by 75SARS-CoV-2 and COVID-19 Researchvaccines and immunoinformatics approachesMonoclonal and Polyclonal Antibodies Research

A public vaccine-induced human antibody protects against SARS-CoV-2 and emerging variants

Open access
Schmitz, Aaron J., Turner, Jackson S., Liu, Zhuoming, Aziati, Ishmael D., Chen, Rita E., Joshi, Astha, Bricker, Traci L., Darling, Tamarand L. +15 more·2021·Immunity

Preprint — published as 10.1016/j.immuni.2021.08.013

Abstract

The emergence of antigenically distinct severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants with increased transmissibility is a public health threat. Some of these variants show substantial resistance to neutralization by SARS-CoV-2 infection- or vaccination-induced antibodies, which principally target the receptor binding domain (RBD) on the virus spike glycoprotein. Here, we describe 2C08, a SARS-CoV-2 mRNA vaccine-induced germinal center B cell-derived human monoclonal antibody that binds to the receptor binding motif within the RBD. 2C08 broadly neutralizes SARS-CoV-2 variants with remarkable potency and reduces lung inflammation, viral load, and morbidity in hamsters challenged with either an ancestral SARS-CoV-2 strain or a recent variant of concern. Clonal analysis identified 2C08-like public clonotypes among B cell clones responding to SARS-CoV-2 infection or vaccination in at least 20 out of 78 individuals. Thus, 2C08-like antibodies can be readily induced by SARS-CoV-2 vaccines and mitigate resistance by circulating variants of concern. One Sentence Summary: Protection against SARS-CoV-2 variants by a potently neutralizing vaccine-induced human monoclonal antibody.

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  • Five RBD-binding monoclonal antibodies showed high neutralization potency, with 80% neutralization values of less than 100 ng ml−1.

    “A more detailed analysis36 of these RBD-binding monoclonal antibodies assessed their in vitro inhibitory capacity against the WA1/2020 D614G strain using an authentic SARS-CoV-2 neutralization assay: five showed high neutralization potency, with 80% neutralization values of less than 100 ng ml−1.”

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  1. [52]Liu Z., VanBlargan L. A., Bloyet L.-M., Rothlauf P. W., Chen R. E., Stumpf S., Zhao H., Errico J. M., Theel E. S., Liebeskind M. J., Alford B., Buchser W. J., Ellebedy A. H., Fremont D. H., Diamond M. S., Whelan S. P. J., Identification of SARS-CoV-2 spike mutations that attenuate monoclonal and serum antibody neutralization. Cell Host Microbe, S1931312821000445 (2021). PMC7839837 33535027

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Authors
Schmitz, A. J., Turner, J. S., Liu, Z., Aziati, I. D., Chen, R. E., Joshi, A., Bricker, T. L., Darling, T. L., Adelsberg, D. C., Alsoussi, W. B., Case, J. B., Lei, T., Thapa, M., Amanat, F., O’Halloran, J. A., Shi, P.-Y., Presti, R. M., Krammer, F., Bajic, G., Whelan, S. P. J., Diamond, M. S., Boon, A. C. M., & Ellebedy, A. H.
Affiliations
  • Washington University in St. Louis (US)
  • Icahn School of Medicine at Mount Sinai (US)
  • The University of Texas Medical Branch at Galveston (US)
Corresponding author
  • Boon, Adrianus C. M.
  • Ellebedy, Ali H.
Venue
Immunity
Publisher
openRxiv
Published
2021-03-25
Volume
54
Issue
9
Pages
2159-2166.e6
ISSN
1074-7613 (ISSN-L)
OpenAlex
W3194943053
Cited by
72
References
80
Citations by year
2026: 4 · 2025: 7 · 2024: 6 · 2023: 5 · 2022: 32 · 2021: 17
FWCI
4.98
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (submittedVersion, cc-by)
Funders
  • Helen Hay Whitney Foundation
  • National Institutes of Health (HHSN272201400006C, UL1TR002345, UL1TR001439)
  • National Cancer Institute (T32CA009547)
  • National Institute of General Medical Sciences (U24GM129539)
  • National Institute of Allergy and Infectious Diseases (HHSN272201400008C), R01AI157155, R01AI118938, U01AI151810, R01AI134907, contract HHSN272201400006C, 75N93019C00051, 75N93019C00062, 75N93021C00016, U01AI150747, U01AI141990, HHSN 272201400006C)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
Keywords
SARS-CoV-2, COVID-19 vaccines, vaccine-induced antibodies, monoclonal antibodies, receptor binding domain, neutralizing antibodies, variants of concern, Delta variant, Alpha variant, Beta variant, D614G mutation, germinal center B cells, antibody resistance, hamster challenge, lung viral load

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