Chen L, Guo S, Wu L, Fan X, Ma H, Wu K, Wu J, Zhang J. IL-17A Autoantibody Induced by Recombinant Mycobacterium smegmatis Expressing Ag85A-IL-17A Fusion Protein.
Appl Biochem Biotechnol 2015;
176:2018-26. [PMID:
26047929 DOI:
10.1007/s12010-015-1697-9]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 05/28/2015] [Indexed: 11/30/2022]
Abstract
Interleukin-17A is a newly described proinflammatory cytokine, which plays important roles in autoimmune diseases as well as asthma. In current work, we constructed a recombinant plasmid pMFA42S-Ag85a-IL-17a by inserting fusion gene Ag85a-IL-17a into shuttle vector pMFA42S, which was transformed to Mycobacterium smegmatis by electroporation to obtain recombinant M. smegmatis named rMS-Ag85a-IL-17a. The comparison of growth pattern between M. smegmatis and rMS-Ag85a-IL-17a suggested fusion gene had no significant influence on the growth of strains, and rMS-Ag85a-IL-17a expressed fusion protein Ag85A-IL-17A which had good immunogenicity revealed by Western blot. M. smegmatis and rMS-Ag85a-IL-17a were performed to intranasally immunize mice; then, antibody response in sera was detected by enzyme-linked immunosorbent assay. Our findings demonstrated that rMS-Ag85a-IL-17a could induce specific IL-17A autoantibody in mice, which laid the foundation for further study.
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