期刊
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
卷 34, 期 2, 页码 133-140出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dci.2009.08.013
关键词
Delayed-type hypersensitivity; Tuberculin response; Fish cell-mediated immunity; cDNA microarray; Live attenuated vaccine
Mycobacteriosis, caused by Mycobacterium sp., results in severe loss of fish production in Japan's aquaculture industry. In this study, the effects of two vaccine candidates, Bacillus Calmette and Guerin (BCG, an attenuated strain of Mycobacterium bovis) and formalin-killed cells of Mycobacterium sp. were evaluated in Japanese flounder, Paralichthys olivaceus. In the immediate response and tuberculin response, BCG-vaccinated fish showed higher gene expression levels of inflammatory cytokines such as IL-1 beta, IL-6, IFN-gamma and TNF alpha. Furthermore, BCG vaccination conferred protective efficacy against Mycobacterium sp. infection in Japanese flounder., Transcriptome analysis using a Japanese flounder cDNA microarray revealed that BCG vaccination induced not only adaptive immunity against Mycobacterium sp. antigen but also the expression of non-specific bactericidal proteins such as lysozyme. These data suggest that BCG confers immunity to Mycobacterium sp. infection and is a potent vaccine candidate for fish mycobacteriosis. (C) 2009 Elsevier Ltd. All rights reserved.
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