A novel DNA and protein combination COVID-19 vaccine formulation provides full protection against SARS-CoV-2 in rhesus macaques.

Abstract:

:The current study aims to develop a safe and highly immunogenic COVID-19 vaccine. The novel combination of a DNA vaccine encoding the full-length Spike (S) protein of SARS-CoV-2 and a recombinant S1 protein vaccine induced high level neutralizing antibody and T cell immune responses in both small and large animal models. More significantly, the co-delivery of DNA and protein components at the same time elicited full protection against intratracheal challenge of SARS-CoV-2 viruses in immunized rhesus macaques. As both DNA and protein vaccines have been proven safe in previous human studies, and DNA vaccines are capable of eliciting germinal center B cell development, which is critical for high-affinity memory B cell responses, the DNA and protein co-delivery vaccine approach has great potential to serve as a safe and effective approach to develop COVID-19 vaccines that provide long-term protection.

journal_name

Emerg Microbes Infect

authors

Li Y,Bi Y,Xiao H,Yao Y,Liu X,Hu Z,Duan J,Yang Y,Li Z,Li Y,Zhang H,Ding C,Yang J,Li H,He Z,Liu L,Hu G,Liu S,Che Y,Wang S,Li Q,Lu S,Cun W

doi

10.1080/22221751.2021.1887767

keywords:

["DNA vaccine","SARS-CoV-2","non-human primate","protein vaccine","spike glycoprotein"]

subject

Has Abstract

pub_date

2021-12-01 00:00:00

pages

342-355

issue

1

issn

2222-1751

journal_volume

10

pub_type

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