FTR33, a member of fish-specific TRIM (finTRIM) subfamily, regulates negatively type I IFN antiviral immunity in zebrafish
文献类型： 外文期刊
作者： Huang, Lin 1 ; Zhang, Lin 4 ; Huo, Hui Jun 5 ; Hou, Jing 5 ; Niu, Meng Meng 1 ; Nie, Pin 1 ; Chen, Shan Nan 1 ;
作者机构： 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquaculture Dis Control, Wuhan 430072, Hubei, Peoples R China
3.Guangxi Acad Sci, Guangxi Engn Res Ctr Fishery Major Dis Control & E, Nanning 530001, Peoples R China
4.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wudayuan First Rd 8, Wuhan 430223, Hubei, Peoples R China
5.Qingdao Agr Univ, Sch Marine Sci & Engn, Qingdao 266109, Shandong, Peoples R China
6.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
关键词： finTRIM; FTR33; ifnu; RLR; IFN; Zebrafish
期刊名称：DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY （ 影响因子：2.9； 五年影响因子：3.1 ）
ISSN： 0145-305X
年卷期： 2023 年 142 卷
页码：
收录情况： SCI
摘要： In mammals, the tripartite motif (TRIM) proteins have been identified as critical factors involved in various cellular processes, including antiviral immunity. In teleost fish, a subfamily of fish-specific TRIM (finTRIM, FTR) has emerged in genus-or species-specific duplication. In this study, a finTRIM gene, called ftr33, was identified in zebrafish (Danio rerio), and phylogenic analysis revealed that FTR33 is closely related with zebrafish FTR14. The FTR33 protein contains all conservative domains reported in other finTRIMs. The ftr33 has a constitutive expression in embryos and in tissues/organs of adult fish, and its expression can be induced following spring viremia of carp virus (SVCV) infection and interferon (IFN) stimulation. The overexpression of FTR33 signifi-cantly downregulated the expression of type I IFNs and IFN-stimulated genes (ISGs) both in vitro and in vivo, respectively, leading to the increased replication of SVCV. It was also found that FTR33 interacted with mela-noma differentiation associated gene 5 (MDA5) or mitochondrial anti-viral signaling protein (MAVS) to weaken the promoter activity of type I IFN. It is thus concluded that the FTR33, as an ISG, in zebrafish can negatively regulate IFN-mediated antiviral response.
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