학술논문

Two-component spike nanoparticle vaccine protects macaques from SARS-CoV-2 infection
Document Type
Report
Source
Cell. March 4, 2021, Vol. 184 Issue 5, 1188
Subject
Prevention
Health aspects
Severe acute respiratory syndrome -- Prevention
Virus diseases -- Prevention
Coronaviruses -- Health aspects
Vaccines -- Health aspects
B cells -- Health aspects
Medical research -- Health aspects
Bacterial infections -- Prevention
Disease transmission -- Prevention
Vaccination -- Health aspects
COVID-19 -- Prevention
Medicine, Experimental -- Health aspects
Language
English
ISSN
0092-8674
Abstract
Keywords SARS-CoV-2; COVID-19; protection; antibodies; nanoparticles; vaccine; macaques; B cells; immunity Highlights * Two-component protein nanoparticles display multiple copies of the SARS-CoV-2 spike * Spike protein nanoparticles enhance cognate B cell activation in vitro * Vaccination induces potent neutralization in mice, rabbits, and cynomolgus macaques * Vaccination protects macaques against a high-dose SARS-CoV-2 challenge Summary The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic is continuing to disrupt personal lives, global healthcare systems, and economies. Hence, there is an urgent need for a vaccine that prevents viral infection, transmission, and disease. Here, we present a two-component protein-based nanoparticle vaccine that displays multiple copies of the SARS-CoV-2 spike protein. Immunization studies show that this vaccine induces potent neutralizing antibody responses in mice, rabbits, and cynomolgus macaques. The vaccine-induced immunity protects macaques against a high-dose challenge, resulting in strongly reduced viral infection and replication in the upper and lower airways. These nanoparticles are a promising vaccine candidate to curtail the SARS-CoV-2 pandemic.