Document Detail


Immune response of turbot (Scophthalmus maximus L.) to a broad spectrum vaccine candidate, recombinant glyceraldehyde-3-phosphate dehydrogenase of Edwardsiella tarda.
MedLine Citation:
PMID:  23084627     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Edwardsiella tarda is a Gram-negative pathogen which causes systemic infection in turbot. The increasing frequency of edwardsiellosis in turbot farming has stressed the need to understand the immune responses of fish, for the further development of prevention and control strategies. As a broad spectrum protective antigen, a recombinant glyceraldehyde-3-phosphate dehydrogenase (GAPDH) of E. tarda EIB202 has been proven to present remarkable protection against E. tarda, Aeromonas hydrophila, Vibrio anguillarum, Vibrio alginolyticus and Vibrio harvei in zebrafish. Here, the protection and immune responses of turbot vaccinated with this antigen were studied. Fish vaccinated with recombinant GAPDH via intraperitoneal injection exhibited a low cumulative mortality when challenged with E. tarda EIB202, while high levels of specific antibodies and enhanced bactericidal activities of the immunized sera were observed. In addition, significantly increased transcription levels of four immune-related genes including IL-1β, MHC Iα and IIα, and IgM in the liver, spleen and kidney tissues of vaccinated fish showed that both humoral and cellular immune responses were soundly aroused in the vaccinated fish. Moreover, the IgM antibodies induced by recombinant GAPDH exhibited obvious cross-reactions with the other four pathogens. These results suggested that recombinant GAPDH could present effective protective immunity not only against E. tarda but also other extracellular pathogens, and would be a potential vaccine candidate against polymicrobial infections in the aquaculture industry.
Authors:
Shunqing Liang; Haizhen Wu; Bing Liu; Jingfan Xiao; Qiyao Wang; Yuanxing Zhang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-29
Journal Detail:
Title:  Veterinary immunology and immunopathology     Volume:  -     ISSN:  1873-2534     ISO Abbreviation:  Vet. Immunol. Immunopathol.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-10-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8002006     Medline TA:  Vet Immunol Immunopathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, PR China.
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