mRNA-1273 or mRNA-Omicron boost in vaccinated macaques elicits similar B cell expansion, neutralizing responses, and protection from Omicron

SARS-CoV-2 Omicron is highly transmissible and has substantial resistance to neutralization following immunization with ancestral spike-matched vaccines. It is unclear whether boosting with Omicron-matched vaccines would enhance protection. Here, nonhuman primates that received mRNA-1273 at weeks 0...

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Detalles Bibliográficos
Autores principales: Gagne, Matthew, Moliva, Juan I., Foulds, Kathryn E., Andrew, Shayne F., Flynn, Barbara J., Werner, Anne P., Wagner, Danielle A., Teng, I-Ting, Lin, Bob C., Moore, Christopher, Jean-Baptiste, Nazaire, Carroll, Robin, Foster, Stephanie L., Patel, Mit, Ellis, Madison, Edara, Venkata-Viswanadh, Maldonado, Nahara Vargas, Minai, Mahnaz, McCormick, Lauren, Honeycutt, Christopher Cole, Nagata, Bianca M., Bock, Kevin W., Dulan, Caitlyn N.M., Cordon, Jamilet, Flebbe, Dillon R., Todd, John-Paul M., McCarthy, Elizabeth, Pessaint, Laurent, Van Ry, Alex, Narvaez, Brandon, Valentin, Daniel, Cook, Anthony, Dodson, Alan, Steingrebe, Katelyn, Nurmukhambetova, Saule T., Godbole, Sucheta, Henry, Amy R., Laboune, Farida, Roberts-Torres, Jesmine, Lorang, Cynthia G., Amin, Shivani, Trost, Jessica, Naisan, Mursal, Basappa, Manjula, Willis, Jacquelyn, Wang, Lingshu, Shi, Wei, Doria-Rose, Nicole A., Zhang, Yi, Yang, Eun Sung, Leung, Kwanyee, O’Dell, Sijy, Schmidt, Stephen D., Olia, Adam S., Liu, Cuiping, Harris, Darcy R., Chuang, Gwo-Yu, Stewart-Jones, Guillaume, Renzi, Isabella, Lai, Yen-Ting, Malinowski, Agata, Wu, Kai, Mascola, John R., Carfi, Andrea, Kwong, Peter D., Edwards, Darin K., Lewis, Mark G., Andersen, Hanne, Corbett, Kizzmekia S., Nason, Martha C., McDermott, Adrian B., Suthar, Mehul S., Moore, Ian N., Roederer, Mario, Sullivan, Nancy J., Douek, Daniel C., Seder, Robert A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cell Press 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8947944/
https://www.ncbi.nlm.nih.gov/pubmed/35447072
http://dx.doi.org/10.1016/j.cell.2022.03.038
Descripción
Sumario:SARS-CoV-2 Omicron is highly transmissible and has substantial resistance to neutralization following immunization with ancestral spike-matched vaccines. It is unclear whether boosting with Omicron-matched vaccines would enhance protection. Here, nonhuman primates that received mRNA-1273 at weeks 0 and 4 were boosted at week 41 with mRNA-1273 or mRNA-Omicron. Neutralizing titers against D614G were 4,760 and 270 reciprocal ID(50) at week 6 (peak) and week 41 (preboost), respectively, and 320 and 110 for Omicron. 2 weeks after the boost, titers against D614G and Omicron increased to 5,360 and 2,980 for mRNA-1273 boost and 2,670 and 1,930 for mRNA-Omicron, respectively. Similar increases against BA.2 were observed. Following either boost, 70%–80% of spike-specific B cells were cross-reactive against WA1 and Omicron. Equivalent control of virus replication in lower airways was observed following Omicron challenge 1 month after either boost. These data show that mRNA-1273 and mRNA-Omicron elicit comparable immunity and protection shortly after the boost.

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