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Transcription factor T-bet in Atlantic salmon: characterization and gene expression in mucosal tissues during Aeromonas salmonicida infection

Permanent link
https://hdl.handle.net/10037/8763
DOI
https://doi.org/10.3389/fimmu.2015.00345
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Date
2015-07-06
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Kumari, Jaya; Zhang, Zuobing; Swain, Trilochan; Chi, Heng; Niu, Cuijuan; Bøgwald, Jarl; Dalmo, Roy Ambli
Abstract
The T-box transcription factor T-bet is expressed in a number of hematopoietic cell types in mammals and plays an essential role in the lineage determination of Th1 T-helper cells and is considered as an essential feature for both innate and adaptive immune responses in higher vertebrates. In the present study, we have identified and characterized the full-length Atlantic salmon T-bet cDNA (3502 bp). The putative primary structure of the polypeptide deduced from the cDNA sequence contained 612 aa, which possessed a T-box DNA binding domain. Phylogenetic study and gene synteny revealed it is as a homolog to mammalian T-bet. Quantitative PCR analysis of different tissues in healthy fish showed that salmon T-bet gene was highly expressed in spleen, followed by head kidney, and was expressed in intestine, skin, and liver at lower levels. Moreover, the time-dependent expression profile of T-bet, interferon gamma (IFNγ), interleukin-22 (IL-22), and natural killer enhancement factor in mucosal tissues during water-borne infection with live Aeromonas salmonicida, indicated the involvement of T-bet in mucosal immune response in Atlantic salmon.
Description
Published version. Also available at http://dx.doi.org/10.3389/fimmu.2015.00345
Publisher
Frontiers
Citation
Frontiers in Immunology 2015, 6:345
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