Immune-related proteins detected through iTRAQ-based proteomics analysis of intestines from Apostichopus japonicus in response to tussah immunoreactive substances

文献类型： 外文期刊

第一作者： Mi, Rui

作者： Mi, Rui;Sun, Yongxin;Ma, Shuhui;Wen, Zhixin;Li, Xuejun;Meng, Nan;Li, Yajie;Du, Xingfan;Li, Shuying;Li, Jianguang

作者机构：

关键词： Apostichopus japonicus; Proteomics; Tussah immunoreactive substances; Intestines

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

ISSN： 1050-4648

年卷期： 2018 年 74 卷

页码：

收录情况： SCI

摘要： Apostichopus japonicus is a species of sea cucumber that is extensively bred as a marine delicacy because of its high nutritive and medicinal value. Immunostimulants are usually used to enhance the immunity of sea cucumber against diseases, but the physiological function of immunostimulants is poorly understood. In this study, we fed A. japonicus individuals with a diet supplemented with different concentrations of tussah immunoreactive substances (TIS), and then subjected their intestines to iTRAQ-based proteomic analysis. A total of 51 differentially expressed proteins were detected in response to TIS, 13 proteins were upregulated, while 38 proteins were reduced. These proteins are involved in phagocytosis, tissue protection, cell apoptosis and energy metabolism. Among these 51 proteins, 7 proteins (GLO2, ACOX, CTTN, MARK, FADD, CSTA and CASP6) related to immunity with functional annotation in sea cucumber were further analyzed. In addition, the upregulated expression of 4 immune-related proteins (GLO2, ACOX, CTTN and MARK) was validated by qRT-PCR. The findings of this study gave further insight into the mechanism by which TIS might enhance the immunity of A. japonicus.

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