Cited by 187SARS-CoV-2 and COVID-19 ResearchAnimal Virus Infections Studiesvaccines and immunoinformatics approaches

Elicitation of broadly protective sarbecovirus immunity by receptor-binding domain nanoparticle vaccines

Open access
Walls, Alexandra C., Miranda, Marcos C., Schäfer, Alexandra, Pham, Minh N., Greaney, Allison, Arunachalam, Prabhu S., Navarro, Mary-Jane, Tortorici, M. Alejandra +41 more·2021·Cell

Published version of a preprint

Abstract

Understanding the ability of SARS-CoV-2 vaccine-elicited antibodies to neutralize and protect against emerging variants of concern and other sarbecoviruses is key for guiding vaccine development decisions and public health policies. We show that a clinical stage multivalent SARS-CoV-2 receptor-binding domain nanoparticle vaccine (SARS-CoV-2 RBD-NP) protects mice from SARS-CoV-2-induced disease after a single shot, indicating that the vaccine could allow dose-sparing. SARS-CoV-2 RBD-NP elicits high antibody titers in two non-human primate (NHP) models against multiple distinct RBD antigenic sites known to be recognized by neutralizing antibodies. We benchmarked NHP serum neutralizing activity elicited by RBD-NP against a lead prefusion-stabilized SARS-CoV-2 spike immunogen using a panel of single-residue spike mutants detected in clinical isolates as well as the B.1.1.7 and B.1.351 variants of concern. Polyclonal antibodies elicited by both vaccines are resilient to most RBD mutations tested, but the E484K substitution has similar negative consequences for neutralization, and exhibit modest but comparable neutralization breadth against distantly related sarbecoviruses. We demonstrate that mosaic and cocktail sarbecovirus RBD-NPs elicit broad sarbecovirus neutralizing activity, including against the SARS-CoV-2 B.1.351 variant, and protect mice against severe SARS-CoV challenge even in the absence of the SARS-CoV RBD in the vaccine. This study provides proof of principle that sarbecovirus RBD-NPs induce heterotypic protection and enables advancement of broadly protective sarbecovirus vaccines to the clinic.

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  1. [37]Collier D. A. SARS-CoV-2 B.1.1.7 escape from mRNA vaccine-elicited neutralizing antibodies. medRxiv 2021.01.19.21249840 (2021).
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Authors
Walls, A. C., Miranda, M. C., Schäfer, A., Pham, M. N., Greaney, A., Arunachalam, P. S., Navarro, M.-J., Tortorici, M. A., Rogers, K., O’Connor, M. A., Shirreff, L., Ferrell, D. E., Bowen, J., Brunette, N., Kepl, E., Zepeda, S. K., Starr, T., Hsieh, C.-L., Fiala, B., Wrenn, S., Pettie, D., Sydeman, C., Sprouse, K. R., Johnson, M., Blackstone, A., Ravichandran, R., Ogohara, C., Carter, L., Tilles, S. W., Rappuoli, R., Leist, S. R., Martinez, D. R., Clark, M., Tisch, R., O’Hagan, D. T., Van Der Most, R., Van Voorhis, W. C., Corti, D., McLellan, J. S., Kleanthous, H., Sheahan, T. P., Smith, K. D., Fuller, D. H., Villinger, F., Bloom, J., Pulendran, B., Baric, R. S., King, N. P., & Veesler, D.
Affiliations
  • University of Washington (US)
  • University of North Carolina at Chapel Hill (US)
  • Stanford University (US)
  • Centre National de la Recherche Scientifique (FR)
  • University of Louisiana at Lafayette (US)
  • Fred Hutch Cancer Center (US)
  • The University of Texas at Austin (US)
  • GlaxoSmithKline (Italy) (IT)
  • Vir Biotechnology (Switzerland) (CH)
  • Gates Foundation (US)
Corresponding author
  • King, Neil P.
  • Veesler, David
Venue
Cell
Publisher
Elsevier BV
Published
2021-10
Volume
184
Issue
21
Pages
5432-5447.e16
ISSN
0092-8674 (ISSN-L)
OpenAlex
W3199882158
Cited by
185
References
116
Citations by year
2026: 15 · 2025: 24 · 2024: 27 · 2023: 35 · 2022: 59 · 2021: 25
FWCI
11.55
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (submittedVersion, cc-by-nc-nd)
Funders
  • Burroughs Wellcome Fund (U01 AI149644, HHSN272201700036I-75N93020F00001)
  • Howard Hughes Medical Institute
  • Defense Threat Reduction Agency (HDTRA1-18-1-0001)
  • National Institute of General Medical Sciences (R01GM120553)
  • Bill and Melinda Gates Foundation (017592, OPP1156262, INV\u2013017592)
  • Pfizer
  • University of Washington
  • Gilead Sciences
  • GlaxoSmithKline (63/032,502)
  • North Carolina General Assembly
  • National Institute of Allergy and Infectious Diseases (DP1AI158186, F32 AI152296, T32 AI007151, R01-AI127521, 5T32GM008268-32, HHSN272201700059C)
  • Office of Research Infrastructure Programs, National Institutes of Health (P51-OD010425)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Virus Infections Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
Keywords
Sarbecovirus, SARS-CoV-2, receptor binding domain, nanoparticle vaccine, multivalent vaccine, heterologous protection, neutralizing antibodies, SARS-CoV, spike protein mutations, mosaic vaccine, dose sparing, non-human primates

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