Characterization of LPS-induced TNF alpha factor (LITAF) from orange-spotted grouper, Epinephelus coioides

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Characterization of LPS-induced TNF alpha factor (LITAF) from orange-spotted grouper, Epinephelus coioides
	[Cai, Jia ; Huang, Youhua ; Wei, Shina ; Ouyang, Zhengliang ; Huang, Xiaohong ; Qin, Qiwei] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China ; [Cai, Jia] Guangdong Ocean Univ, Coll Fishery, Zhanjiang 524025, Peoples R China
刊名	FISH & SHELLFISH IMMUNOLOGY
	2013
卷号	35 期号:6 页码:1858-1866
关键词	Epinephelus coioides LPS-induced TNF alpha factor (LITAF) Singapore grouper iridovirus (SGIV) Apoptosis Viral replication
ISSN号	1050-4648
通讯作者	huangxh@scsio.ac.cn ; qinqw@scsio.ac.cn
中文摘要	Lipopolysaccharide-induced TNF alpha factor (LITAF) is an important transcription factor that mediates cell apoptosis and inflammatory response. In the present study, we cloned and characterized a LITAF gene from orange-spotted grouper (Epinephelus coioides) (Ec-LITAF). Ec-LITAF encoded a predicted 142 amino acid protein which shared 74% identity to sablefish (Anoplopoma fimbria) LITAF homolog. Multiple amino acid alignment showed that Ec-LITAF contained a typical LITAF domain with two CXXC motifs. Phylogenetic analysis indicated that Ec-LITAF was closely related to that of sablefish. Ec-LITAF mRNA was widely expressed in different tissues and its expression level in spleen was up-regulated after Singapore grouper iridovirus (SGIV) infection. Subcellular localization analysis revealed that the distribution of Ec-LITAF showed diffuse and aggregated patterns in cytoplasm. Interestingly, the distribution of Ec-LITAF overlayed with a viral LITAF homolog (vLITAF) encoded by SGIV. Overexpression of Ec-LITAF in vitro up-regulated the expression of tumor necrosis factors (TNF1 and TNF2) and TNF receptors (TNFR1 and TNFR2), and the expression of itself initiated apoptosis in fish cells. In addition, overexpression of Ec-LITAF not only accelerated SGIV infection induced CPE and cell death, but also increased viral gene transcription. Taken together, our data suggested that Ec-LITAF might play crucial roles during SGIV replication. (C) 2013 Elsevier Ltd. All rights reserved.
学科主题	Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
资助信息	This work was supported by grants from the National Basic Research Program of China (973) (2012CB114402, 2012CB114404), the National Natural Science Foundation of China (31172445, 31172437, 30930070) and the National High Technology Development Program of China (863) (2012AA092201).
原文出处	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
语种	英语
WOS记录号	WOS:000330158800019
公开日期	2015-01-22
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10951]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	[Cai, Jia,Huang, Youhua,Wei, Shina,et al. Characterization of LPS-induced TNF alpha factor (LITAF) from orange-spotted grouper, Epinephelus coioides[J]. FISH & SHELLFISH IMMUNOLOGY,2013,35(6):1858-1866.
APA	[Cai, Jia.,Huang, Youhua.,Wei, Shina.,Ouyang, Zhengliang.,Huang, Xiaohong.,...&[Cai, Jia] Guangdong Ocean Univ, Coll Fishery, Zhanjiang 524025, Peoples R China.(2013).Characterization of LPS-induced TNF alpha factor (LITAF) from orange-spotted grouper, Epinephelus coioides.FISH & SHELLFISH IMMUNOLOGY,35(6),1858-1866.
MLA	[Cai, Jia,et al."Characterization of LPS-induced TNF alpha factor (LITAF) from orange-spotted grouper, Epinephelus coioides".FISH & SHELLFISH IMMUNOLOGY 35.6(2013):1858-1866.