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SARS-CoV-2 vaccination induces immunological memory able to cross-recognize variants from Alpha to Omicron
Alison Tarke; Camila H. Coelho; Zeli Zhang; Jennifer M. Dan; Esther Dawen Yu; Nils Methot; Nathaniel I Bloom; Benjamin Goodwin; Elizabeth Phillips; Simon Mallal; John Sidney; Gilberto Filaci; Daniela Weiskopf; Ricardo da Silva Antunes; Shane Crotty; Alba Grifoni; Alessandro Sette.
Afiliación
  • Alison Tarke; La Jolla Institute for immunology
  • Camila H. Coelho; La Jolla institute for immunology
  • Zeli Zhang; La Jolla Institute for immunology
  • Jennifer M. Dan; La Jolla Institute for immunology
  • Esther Dawen Yu; La Jolla Institute for immunology
  • Nils Methot; La Jolla Institute for immunology
  • Nathaniel I Bloom; La Jolla Institute for immunology
  • Benjamin Goodwin; La Jolla Institute for immunology
  • Elizabeth Phillips; Institute for Immunology and Infectious Diseases, Murdoch University,
  • Simon Mallal; Institute for Immunology and Infectious Diseases, Murdoch University,
  • John Sidney; La Jolla Institute For Immunology
  • Gilberto Filaci; Bioterapy Unit, IRCCS Ospedale Policlinico San Martino
  • Daniela Weiskopf; La Jolla Institute For Immunology
  • Ricardo da Silva Antunes; La Jolla Institute for Immunology
  • Shane Crotty; La Jolla Institute For Immunology (LJI)
  • Alba Grifoni; La Jolla Institute for Immunology
  • Alessandro Sette; La Jolla Institute for Immunology
Preprint en En | PREPRINT-BIORXIV | ID: ppbiorxiv-474333
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ABSTRACT
We address whether T cell responses induced by different vaccine platforms (mRNA-1273, BNT162b2, Ad26.COV2.S, NVX-CoV2373) cross-recognize SARS-CoV-2 variants. Preservation of at least 83% and 85% for CD4+ and CD8+ T cell responses was found, respectively, regardless of vaccine platform or variants analyzed. By contrast, highly significant decreases were observed for memory B cell and neutralizing antibody recognition of variants. Bioinformatic analyses showed full conservation of 91% and 94% of class II and class I spike epitopes. For Omicron, 72% of class II and 86% of class I epitopes were fully conserved, and 84% and 85% of CD4+ and CD8+ T cell responses were preserved. In-depth epitope repertoire analysis showed a median of 11 and 10 spike epitopes recognized by CD4+ and CD8+ T cells from vaccinees. Functional preservation of the majority of the T cell responses may play an important role as a second-level defense against diverse variants.
Licencia
cc_by_nc_nd
Texto completo: 1 Colección: 09-preprints Base de datos: PREPRINT-BIORXIV Tipo de estudio: Rct Idioma: En Año: 2021 Tipo del documento: Preprint
Texto completo: 1 Colección: 09-preprints Base de datos: PREPRINT-BIORXIV Tipo de estudio: Rct Idioma: En Año: 2021 Tipo del documento: Preprint