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学科主题: Immunology; Veterinary Sciences
题名: Molecular structural and functional characterization of STAT1 gene regulatory region in teleost Channa argus
作者: Jia, Weizhang1; Zhou, Xiuxia2
通讯作者: Jia, WZ, Guangdong Pharmaceut Univ, Sch Life Sci & Biopharmaceut, Guangzhou 510006, Guangdong, Peoples R China
关键词: Interferon ; STAT1 ; Regulatory region ; ISRE ; Luciferase activity
刊名: VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY
发表日期: 2010-05-15
DOI: 10.1016/j.vetimm.2009.11.003
卷: 135, 期:1-2, 页:146-151
收录类别: SCI
文章类型: Article
部门归属: [Jia, Weizhang] Guangdong Pharmaceut Univ, Sch Life Sci & Biopharmaceut, Guangzhou 510006, Guangdong, Peoples R China; [Zhou, Xiuxia] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China [30371091]; Scientific Research Startup of Guangdong Pharmaceutical University [43555022]
类目[WOS]: Immunology ; Veterinary Sciences
研究领域[WOS]: Immunology ; Veterinary Sciences
摘要: The transcription factor STAT1 is involved in signal transduction of type I and II interferons (IFNs). However, the molecular characteristics of the STAT1 regulatory region still remain to be elucidated in teleosts. In the present study, the complete cDNA and the regulatory region of the STAT1 gene were isolated from snakehead (Channa argus). More than 2.4 kb 5'-flanking region of STAT1 shares the regulatory elements of IFN-stimulated response element (ISRE) and IFN-gamma activation site (GAS). Consensus ISRE and GAS were located from -373 to -361 and -716 to -724 in the promoter region, respectively. Moreover, it is noticeable that the crucial elements of ISRE (+698 to +710) and GAS (+294 and +301) are present in the first intron of snakehead STAT1. Comparisons of six vertebrate STAT1 5'-flanking regions all present the common sequence characteristics of IFN-induced gene promoter, which include ISRE, GAS and Sp1 sites. In order to further characterize the snakehead STAT1 regulatory region, six reporter constructs of snakehead STAT1 promoter and first intron were generated to examine the specificity to human interferon-gamma (hIFN-gamma). Only those constructs containing the ISRE element showed notable reporter activity after stimulation of Hela cells with hIFN-gamma. However, sequential deletions of putative transcription factor binding sites indicated that GAS elements have little effect on the promoter and intronic activity in response to hIFN-gamma. Taken together, these results suggest that the regulatory mechanisms of IFN-signalling appear to be mediated in a similar manner in fish and mammals. (C) 2009 Elsevier B.V. All rights reserved.
英文摘要: The transcription factor STAT1 is involved in signal transduction of type I and II interferons (IFNs). However, the molecular characteristics of the STAT1 regulatory region still remain to be elucidated in teleosts. In the present study, the complete cDNA and the regulatory region of the STAT1 gene were isolated from snakehead (Channa argus). More than 2.4 kb 5'-flanking region of STAT1 shares the regulatory elements of IFN-stimulated response element (ISRE) and IFN-gamma activation site (GAS). Consensus ISRE and GAS were located from -373 to -361 and -716 to -724 in the promoter region, respectively. Moreover, it is noticeable that the crucial elements of ISRE (+698 to +710) and GAS (+294 and +301) are present in the first intron of snakehead STAT1. Comparisons of six vertebrate STAT1 5'-flanking regions all present the common sequence characteristics of IFN-induced gene promoter, which include ISRE, GAS and Sp1 sites. In order to further characterize the snakehead STAT1 regulatory region, six reporter constructs of snakehead STAT1 promoter and first intron were generated to examine the specificity to human interferon-gamma (hIFN-gamma). Only those constructs containing the ISRE element showed notable reporter activity after stimulation of Hela cells with hIFN-gamma. However, sequential deletions of putative transcription factor binding sites indicated that GAS elements have little effect on the promoter and intronic activity in response to hIFN-gamma. Taken together, these results suggest that the regulatory mechanisms of IFN-signalling appear to be mediated in a similar manner in fish and mammals. (C) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: TROUT ONCORHYNCHUS-MYKISS ; PROMOTER-REPORTER SYSTEM ; RAINBOW-TROUT ; MX1 PROMOTER ; DANIO-RERIO ; IFN-GAMMA ; CELL-LINE ; INTERFERON ; EXPRESSION ; CLONING
语种: 英语
WOS记录号: WOS:000277557600016
ISSN号: 0165-2427
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13854
Appears in Collections:水生生物分子与细胞生物学研究中心_期刊论文

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作者单位: 1.Guangdong Pharmaceut Univ, Sch Life Sci & Biopharmaceut, Guangzhou 510006, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
Jia, Weizhang; Zhou, Xiuxia.Molecular structural and functional characterization of STAT1 gene regulatory region in teleost Channa argus,VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY,2010,135(1-2):146-151
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