Cited by 912SARS-CoV-2 and COVID-19 Researchvaccines and immunoinformatics approachesAnimal Virus Infections Studies

Alarming antibody evasion properties of rising SARS-CoV-2 BQ and XBB subvariants

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Wang, Qian, Iketani, Sho, Li, Zhiteng, Liu, Liyuan, Guo, Yicheng, Huang, Yiming, Bowen, Anthony D., Liu, Michael +9 more·2023·Cell

Published version of a preprint

Abstract

SUMMARY The SARS-CoV-2 Omicron variant continues to evolve, with new BQ and XBB subvariants now rapidly expanding in Europe/US and Asia, respectively. As these new subvariants have additional spike mutations, they may possess altered antibody evasion properties. Here, we report that neutralization of BQ.1, BQ.1.1, XBB, and XBB.1 by sera from vaccinees and infected persons was markedly impaired, including sera from individuals who were boosted with a WA1/BA.5 bivalent mRNA vaccine. Compared to the ancestral strain D614G, serum neutralizing titers against BQ and XBB subvariants were lower by 13-81-fold and 66-155-fold, respectively, far beyond what had been observed to date. A panel of monoclonal antibodies capable of neutralizing the original Omicron variant, including those with Emergency Use Authorization, were largely inactive against these new subvariants. The spike mutations that conferred antibody resistance were individually studied and structurally explained. Finally, the ACE2-binding affinities of the spike proteins of these novel subvariants were found to be similar to those of their predecessors. Taken together, our findings indicate that BQ and XBB subvariants present serious threats to the efficacy of current COVID-19 vaccines, render inactive all authorized monoclonal antibodies, and may have gained dominance in the population because of their advantage in evading antibodies.

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Authors
Wang, Q., Iketani, S., Li, Z., Liu, L., Guo, Y., Huang, Y., Bowen, A. D., Liu, M., Wang, M., Yu, J., Valdez, R., Lauring, A. S., Sheng, Z., Wang, H. H., Gordon, A., Liu, L., & Ho, D. D.
Affiliations
  • Aaron Diamond AIDS Research Center (US)
  • Columbia University (US)
  • University of Michigan (US)
Corresponding author
  • Liu, Lihong
  • Ho, David D.
Venue
Cell
Publisher
Elsevier BV
Published
2023-01
Volume
186
Issue
2
Pages
279-286.e8
ISSN
0092-8674 (ISSN-L)
OpenAlex
W4311359167
Cited by
912
References
45
Citations by year
2026: 69 · 2025: 170 · 2024: 289 · 2023: 376 · 2022: 6
FWCI
102.79
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • ImmPort
Funders
  • NIH
  • Janssen Pharmaceuticals
  • Columbia University
  • Bill & Melinda Gates Foundation
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
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Virus Infections Studies
Keywords
SARS-CoV-2 Omicron subvariants, BQ.1, BQ.1.1, XBB, XBB.1, antibody escape, neutralizing antibodies, spike protein mutations, bivalent mRNA vaccine, monoclonal antibodies, ACE2 binding affinity
MeSH terms
COVID-19, SARS-CoV-2, COVID-19 Vaccines, Antibodies, Monoclonal, Antibodies, Viral, Humans, Immune Evasion, Antibodies, Neutralizing

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