Beta-spike-containing boosters induce robust and functional antibody responses to SARS-CoV-2 in macaques primed with distinct vaccines

Yixiang Deng; Caroline Atyeo; Dansu Yuan; Taras M. Chicz; Timothy Tibbitts; Matthew Gorman; Sabian Taylor; Valerie Lecouturier; Douglas A. Lauffenburger; Roman M. Chicz; Galit Alter; Ryan P. McNamara

Cell Reports (Nov 2023)

Beta-spike-containing boosters induce robust and functional antibody responses to SARS-CoV-2 in macaques primed with distinct vaccines

Yixiang Deng,
Caroline Atyeo,
Dansu Yuan,
Taras M. Chicz,
Timothy Tibbitts,
Matthew Gorman,
Sabian Taylor,
Valerie Lecouturier,
Douglas A. Lauffenburger,
Roman M. Chicz,
Galit Alter,
Ryan P. McNamara

Affiliations

Yixiang Deng: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA; Massachusetts Institute of Technology, Cambridge, MA, USA
Caroline Atyeo: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
Dansu Yuan: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
Taras M. Chicz: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
Timothy Tibbitts: Sanofi, Cambridge, MA, USA
Matthew Gorman: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
Sabian Taylor: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
Valerie Lecouturier: Sanofi, Marcy l’Etoile, France
Douglas A. Lauffenburger: Massachusetts Institute of Technology, Cambridge, MA, USA
Roman M. Chicz: Sanofi, Waltham, MA, USA
Galit Alter: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
Ryan P. McNamara: Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA; Corresponding author

Journal volume & issue: Vol. 42, no. 11
p. 113292

Abstract

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Summary: The reduced effectiveness of COVID-19 vaccines due to the emergence of variants of concern (VOCs) necessitated the use of vaccine boosters to bolster protection against disease. However, it remains unclear how boosting expands protective breadth when primary vaccine platforms are distinct and how boosters containing VOC spike(s) broaden humoral responses. Here, we report that boosters composed of recombinant spike antigens of ancestral (prototype) and Beta VOCs elicit a robust, pan-VOC, and multi-functional humoral response in non-human primates largely independent of the primary vaccine series platform. Interestingly, Beta-spike-containing boosters stimulate immunoglobulin A (IgA) with a greater breadth of recognition in protein-primed recipients when administered with adjuvant system 03 (AS03). Our results highlight the utility of a component-based booster strategy for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) for broad humoral recognition, independent of primary vaccine series. This is of high global health importance given the heterogeneity of primary vaccination platforms distributed.

CP: Immunology

Published in Cell Reports

ISSN: 2211-1247 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Biology (General)
Website: http://www.cell.com/cell-reports/home

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