The RSVPreF3-AS01 vaccine elicits broad neutralization of contemporary and antigenically distant respiratory syncytial virus strains

Author:

Sacconnay Lionel1ORCID,De Smedt Jonathan1ORCID,Rocha-Perugini Vera1ORCID,Ong Edison1,Mascolo Romuald1,Atas Anne1ORCID,Vanden Abeele Carline2ORCID,de Heusch Magali2ORCID,De Schrevel Nathalie1ORCID,David Marie-Pierre2ORCID,Bouzya Badiaa2ORCID,Stobbelaar Kim3ORCID,Vanloubbeeck Yannick1,Delputte Peter L.3ORCID,Mallett Corey P.4ORCID,Dezutter Nancy2ORCID,Warter Lucile1ORCID

Affiliation:

1. GSK, 1330 Rixensart, Belgium.

2. GSK, 1300 Wavre, Belgium.

3. Department of Biomedical Sciences and Infla-Med Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium.

4. GSK, Rockville, MD 20850, USA.

Abstract

The RSVPreF3-AS01 vaccine, containing the respiratory syncytial virus (RSV) prefusion F protein and the AS01 adjuvant, was previously shown to boost neutralization responses against historical RSV strains and to be efficacious in preventing RSV-associated lower respiratory tract diseases in older adults. Although RSV F is highly conserved, variation does exist between strains. Here, we characterized variations in the major viral antigenic sites among contemporary RSV sequences when compared with RSVPreF3 and showed that, in older adults, RSVPreF3-AS01 broadly boosts neutralization responses against currently dominant and antigenically distant RSV strains. RSV-neutralizing responses are thought to play a central role in preventing RSV infection. Therefore, the breadth of RSVPreF3-AS01–elicited neutralization responses may contribute to vaccine efficacy against contemporary RSV strains and those that may emerge in the future.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

General Medicine

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