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Fab and Fc contribute to maximal protection against SARS-CoV-2 following NVX-CoV2373 subunit vaccine with Matrix-M vaccination

Cell Reports Medicine, ISSN: 2666-3791, Vol: 2, Issue: 9, Page: 100405
2021
  • 100
    Citations
  • 0
    Usage
  • 74
    Captures
  • 0
    Mentions
  • 4
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    100
  • Captures
    74
  • Social Media
    4
    • Shares, Likes & Comments
      4
      • Facebook
        4

Article Description

Recently approved vaccines have shown remarkable efficacy in limiting SARS-CoV-2-associated disease. However, with the variety of vaccines, immunization strategies, and waning antibody titers, defining the correlates of immunity across a spectrum of antibody titers is urgently required. Thus, we profiled the humoral immune response in a cohort of non-human primates immunized with a recombinant SARS-CoV-2 spike glycoprotein (NVX-CoV2373) at two doses, administered as a single- or two-dose regimen. Both antigen dose and boosting significantly altered neutralization titers and Fc-effector profiles, driving unique vaccine-induced antibody fingerprints. Combined differences in antibody effector functions and neutralization were associated with distinct levels of protection in the upper and lower respiratory tract. Moreover, NVX-CoV2373 elicited antibodies that functionally targeted emerging SARS-CoV-2 variants. Collectively, the data presented here suggest that a single dose may prevent disease via combined Fc/Fab functions but that two doses may be essential to block further transmission of SARS-CoV-2 and emerging variants.

Bibliographic Details

Gorman, Matthew J; Patel, Nita; Guebre-Xabier, Mimi; Zhu, Alex L; Atyeo, Caroline; Pullen, Krista M; Loos, Carolin; Goez-Gazi, Yenny; Carrion, Ricardo; Tian, Jing-Hui; Yuan, Dansu; Bowman, Kathryn A; Zhou, Bin; Maciejewski, Sonia; McGrath, Marisa E; Logue, James; Frieman, Matthew B; Montefiori, David; Mann, Colin; Schendel, Sharon; Amanat, Fatima; Krammer, Florian; Saphire, Erica Ollmann; Lauffenburger, Douglas A; Greene, Ann M; Portnoff, Alyse D; Massare, Michael J; Ellingsworth, Larry; Glenn, Gregory; Smith, Gale; Alter, Galit

Elsevier BV

Biochemistry, Genetics and Molecular Biology

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