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Identification and expression analysis of fetuin B (FETUB) in turbot (Scophthalmus maximus L.) mucosal barriers following bacterial challenge

文献类型： 外文期刊

作者： Li, Chao 1 ; Gao, Chengbin 1 ; Fu, Qiang 1 ; Su, Baofeng 2 ; Chen, Jinghua 1 ;

作者机构： 1.Qingdao Agr Univ, Marine Sci & Engn Coll, Qingdao 266109, Peoples R China

2.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Natl & Local Joint Engn Lab Freshwater Fish Breed, Harbin 150070, Heilongjiang, Peoples R China

3.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Minist Agr, Key Lab Freshwater Aquat Biotechnol & Breeding, Harbin 150070, Heilongjiang, Peoples R China

关键词： FETUB;Mucosal immunity;Turbot;Vibrio anguillarum;Streptococcus iniae

期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.581； 五年影响因子：4.851 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Fetuin B (FETUB), a recently described cysteine proteinase inhibitor, has numerous conserved N-glycosylation sites, species-specific O-glycosylation sites, and two cystatin (CY) domains. FETUB is likely to play regulatory roles in acute inflammation, female infertility, fish organogenesis and tumor suppression. In the present study, transcript of turbot FETUS gene was captured, its protein structure and expression patterns in different tissues with emphasis on mucosal barriers following different bacterial infection were characterized. Turbot FETUS gene showed the closest relationship with Takifugu rubripes in phylogenetic analysis. In addition, FETUB was ubiquitously expressed in all examined tissues with the highest expression level in skin. Finally, FETUB gene showed different expression patterns following both bacterial challenge. The rapidly and significantly differential expression patterns of FETUB in mucosal surfaces against bacterial infections might indicate its key roles to prevent pathogen attachment and entry in turbot mucosal immunity. Functional studies should be carried out to further characterize the FETUB and avail utilization of its function to increase the disease resistance of turbot in maintaining the integrity of the mucosal barriers against infections and to facilitate selection of the fine family/varieties of disease resistance in turbot. (C) 2017 Elsevier Ltd. All rights reserved.

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