Development of an Aeromonas hydrophila recombinant extracellular protease vaccine

Autor: Chengping Lu, Lei Wu, Ya-nan Jiang, Huochun Yao, Qian Tang, Hui-xing Lin
Rok vydání: 2012
Předmět:
Zdroj: Microbial Pathogenesis. 53:183-188
ISSN: 0882-4010
DOI: 10.1016/j.micpath.2012.07.007
Popis: Aeromonas hydrophila (Ah) exists widely in the aquatic environment and infects a variety of animals. Extracellular protease (EPR) is an important protective antigen that induces a specific antibody response to resist Ah infection. In this study, two genes encoding extracellular protease epr2 and epr3 were linked within the expression vector pET32a to construct a recombinant pET-epr2-3 plasmid. The immunogenicity of the fusion protein epr2-3 was investigated as a subunit vaccine in ICR mice. The recombinant epr2-3 protein induced the production of high antibody titers. The survival rate against homogenous Ah J-1 challenge was significantly higher in the epr2-3 vaccinated group (≥80%) compared with the inactivated Ah vaccinated group and the challenge control group (P
Databáze: OpenAIRE