| Literature DB >> 34529476 |
Kizzmekia S Corbett1, Martha C Nason2, Britta Flach1, Matthew Gagne1, Sarah O'Connell1, Timothy S Johnston1, Shruti N Shah1, Venkata Viswanadh Edara3, Katharine Floyd3, Lilin Lai3, Charlene McDanal4, Joseph R Francica1, Barbara Flynn1, Kai Wu5, Angela Choi5, Matthew Koch5, Olubukola M Abiona1, Anne P Werner1, Juan I Moliva1, Shayne F Andrew1, Mitzi M Donaldson1, Jonathan Fintzi1, Dillon R Flebbe1, Evan Lamb1, Amy T Noe1, Saule T Nurmukhambetova1, Samantha J Provost1, Anthony Cook6, Alan Dodson6, Andrew Faudree6, Jack Greenhouse6, Swagata Kar6, Laurent Pessaint6, Maciel Porto6, Katelyn Steingrebe6, Daniel Valentin6, Serge Zouantcha6, Kevin W Bock7, Mahnaz Minai7, Bianca M Nagata7, Renee van de Wetering1, Seyhan Boyoglu-Barnum1, Kwanyee Leung1, Wei Shi1, Eun Sung Yang1, Yi Zhang1, John-Paul M Todd1, Lingshu Wang1, Gabriela S Alvarado1, Hanne Andersen6, Kathryn E Foulds1, Darin K Edwards5, John R Mascola1, Ian N Moore7, Mark G Lewis6, Andrea Carfi5, David Montefiori4, Mehul S Suthar3,8, Adrian McDermott1, Mario Roederer1, Nancy J Sullivan1, Daniel C Douek1, Barney S Graham1, Robert A Seder1.
Abstract
Immune correlates of protection can be used as surrogate endpoints for vaccine efficacy. Here, nonhuman primates (NHPs) received either no vaccine or doses ranging from 0.3 to 100 μg of the mRNA-1273 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine. mRNA-1273 vaccination elicited circulating and mucosal antibody responses in a dose-dependent manner. Viral replication was significantly reduced in bronchoalveolar lavages and nasal swabs after SARS-CoV-2 challenge in vaccinated animals and most strongly correlated with levels of anti–S antibody and neutralizing activity. Lower antibody levels were needed for reduction of viral replication in the lower airway than in the upper airway. Passive transfer of mRNA-1273–induced immunoglobulin G to naïve hamsters was sufficient to mediate protection. Thus, mRNA-1273 vaccine–induced humoral immune responses are a mechanistic correlate of protection against SARS-CoV-2 in NHPs.Entities:
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Year: 2021 PMID: 34529476 PMCID: PMC8449013 DOI: 10.1126/science.abj0299
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728