Skip to main content
Top
Published in: Virology Journal 1/2022

Open Access 01-12-2022 | Rabies | Research

An mRNA-based rabies vaccine induces strong protective immune responses in mice and dogs

Authors: Jianglong Li, Qi Liu, Jun Liu, Xiaohong Wu, Yixin Lei, Shuang Li, Danhua Zhao, Zhi Li, Liping Luo, Sophia Peng, Yingrao Ou, Hong Yang, Jing Jin, Yuhua Li, Yucai Peng

Published in: Virology Journal | Issue 1/2022

Login to get access

Abstract

Rabies is a lethal zoonotic disease that is mainly caused by the rabies virus (RABV). Although effective vaccines have long existed, current vaccines take both time and cost to produce. Messenger RNA (mRNA) technology is an emergent vaccine platform that supports rapid vaccine development on a large scale. Here, an optimized mRNA vaccine construct (LVRNA001) expressing rabies virus glycoprotein (RABV-G) was developed in vitro and then evaluated in vivo for its immunogenicity and protective capacity in mice and dogs. LVRNA001 induced neutralizing antibody production and a strong Th1 cellular immune response in mice. In both mice and dogs, LVRNA001 provided protection against challenge with 50-fold lethal dose 50 (LD50) of RABV. With regards to protective efficiency, an extended dosing interval (14 days) induced greater antibody production than 3- or 7-day intervals in mice. Finally, post-exposure immunization against RABV was performed to evaluate the survival rates of dogs receiving two 25 μg doses of LVRNA001 vs. five doses of inactivated vaccine over the course of three months. Survival rate in the LVRNA001 group was 100%, whereas survival rate in the inactivated vaccine control group was only 33.33%. In conclusion, these results demonstrated that LVRNA001 induced strong protective immune responses in mice and dogs, which provides a new and promising prophylactic strategy for rabies.
Literature
47.
go back to reference Ross J, Sullivan TD. Half-lives of beta and gamma globin messenger RNAs and of protein synthetic capacity in cultured human reticulocytes. Blood. 1985;66:1149–54.CrossRefPubMed Ross J, Sullivan TD. Half-lives of beta and gamma globin messenger RNAs and of protein synthetic capacity in cultured human reticulocytes. Blood. 1985;66:1149–54.CrossRefPubMed
50.
52.
go back to reference Cher DJ, Mosmann TR. Two types of murine helper T cell clone. II. Delayed-type hypersensitivity is mediated by TH1 clones. J Immunol. 1987;138:3688–94.PubMed Cher DJ, Mosmann TR. Two types of murine helper T cell clone. II. Delayed-type hypersensitivity is mediated by TH1 clones. J Immunol. 1987;138:3688–94.PubMed
54.
go back to reference Mosmann TR, Cherwinski H, Bond MW, Giedlin MA, Coffman RL. Two types of murine helper T cell clone. I. Definition according to profiles of lymphokine activities and secreted proteins. J Immunol. 1986;136:2348–57.PubMed Mosmann TR, Cherwinski H, Bond MW, Giedlin MA, Coffman RL. Two types of murine helper T cell clone. I. Definition according to profiles of lymphokine activities and secreted proteins. J Immunol. 1986;136:2348–57.PubMed
Metadata
Title
An mRNA-based rabies vaccine induces strong protective immune responses in mice and dogs
Authors
Jianglong Li
Qi Liu
Jun Liu
Xiaohong Wu
Yixin Lei
Shuang Li
Danhua Zhao
Zhi Li
Liping Luo
Sophia Peng
Yingrao Ou
Hong Yang
Jing Jin
Yuhua Li
Yucai Peng
Publication date
01-12-2022
Publisher
BioMed Central
Keyword
Rabies
Published in
Virology Journal / Issue 1/2022
Electronic ISSN: 1743-422X
DOI
https://doi.org/10.1186/s12985-022-01919-7

Other articles of this Issue 1/2022

Virology Journal 1/2022 Go to the issue