Cited by 258SARS-CoV-2 and COVID-19 ResearchCOVID-19 Clinical Research StudiesAnimal Virus Infections Studies

SARS-CoV-2 variant B.1.617 is resistant to bamlanivimab and evades antibodies induced by infection and vaccination

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Hoffmann, Markus, Hofmann-Winkler, Heike, Krüger, Nadine, Kempf, Amy, Nehlmeier, Inga, Graichen, Luise, Arora, Prerna, Sidarovich, Anzhalika +7 more·2021·Cell Reports

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Abstract

The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants threatens efforts to contain the coronavirus disease 2019 (COVID-19) pandemic. The number of COVID-19 cases and deaths in India has risen steeply, and a SARS-CoV-2 variant, B.1.617, is believed to be responsible for many of these cases. The spike protein of B.1.617 harbors two mutations in the receptor binding domain, which interacts with the angiotensin converting enzyme 2 (ACE2) receptor and constitutes the main target of neutralizing antibodies. Therefore, we analyze whether B.1.617 is more adept in entering cells and/or evades antibody responses. B.1.617 enters two of eight cell lines tested with roughly 50% increased efficiency and is equally inhibited by two entry inhibitors. In contrast, B.1.617 is resistant against bamlanivimab, an antibody used for COVID-19 treatment. B.1.617 evades antibodies induced by infection or vaccination, although less so than the B.1.351 variant. Collectively, our study reveals that antibody evasion of B.1.617 may contribute to the rapid spread of this variant.

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Crossref · 10.1016/j.celrep.2021.109415

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  • Of convalescent plasma samples, about 40% had 3-fold to 10-fold and 15% had >10-fold reduced neutralizing activity against the Kappa variant.

    “Of convalescent plasma samples, about 40% had 3-fold to 10-fold and 15% had >10-fold reduced neutralizing activity 100,122,234 .”

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Authors
Hoffmann, M., Hofmann-Winkler, H., Krüger, N., Kempf, A., Nehlmeier, I., Graichen, L., Arora, P., Sidarovich, A., Moldenhauer, A.-S., Winkler, M. S., Schulz, S., Jäck, H.-M., Stankov, M. V., Behrens, G. M. N., & Pöhlmann, S.
Affiliations
  • German Primate Center (DE)
  • Universitätsmedizin Göttingen (DE)
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
  • Medizinische Hochschule Hannover (DE)
Corresponding author
  • Hoffmann, Markus
  • Pöhlmann, Stefan
Venue
Cell Reports
Publisher
Elsevier BV
Published
2021-07
Volume
36
Issue
3
Pages
109415
ISSN
2211-1247 (ISSN-L)
OpenAlex
W3173241791
Cited by
258
References
62
Citations by year
2026: 3 · 2025: 9 · 2024: 18 · 2023: 22 · 2022: 97 · 2021: 108 · 2020: 1
FWCI
19.38
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (01KI2043, 01KI2074A, PO 716/11-1, PO 716/14-1, RTG1660, TRR130)
  • Bundesministerium für Bildung und Forschung (01KI2006D, 01KI20328A, 01KI20396, 01KX2021)
  • Niedersächsisches Ministerium für Wissenschaft und Kultur (14-76103-184, MWK HZI COVID-19)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Virus Infections Studies
Keywords
SARS-CoV-2, Omicron variant, bamlanivimab, antibody escape, viral entry, neutralizing antibodies, COVID-19 vaccines, B.1.351 variant, ACE2 receptor
MeSH terms
Angiotensin-Converting Enzyme 2, COVID-19, SARS-CoV-2, COVID-19 Drug Treatment, Antibodies, Viral, Cell Line, Esters, Guanidines, Humans, Protease Inhibitors, Protein Binding, Vaccination, Antibodies, Neutralizing, Antibodies, Monoclonal, Humanized, Spike Glycoprotein, Coronavirus

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