Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
CsIFIT1, an interferon-induced protein with tetratricopeptide repeat, inhibits viral infection in tongue sole (Cynoglossus semilaevis) | |
Long, Hao1,2; Sun, Li1; Sun, L (reprint author), Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China. | |
2014-12-01 | |
发表期刊 | FISH & SHELLFISH IMMUNOLOGY |
卷号 | 41期号:2页码:231-237 |
文章类型 | Article |
摘要 | Interferon-induced protein with tetratricopeptide repeats (IFIT) is involved in antiviral immunity in mammalian cells. In fish, the function of this group of proteins is unknown. In this study, we report the identification of an IFIT homologue (named CsIFIT1) from tongue sole (Cynoglossus semilaevis) and examined its antiviral potential. CsIFIT1 is composed of 436 residues and shares 30.9%-58.7% overall sequence identities with the known IFITs of a number of teleost species. In silico analysis identified two tetratricopeptide repeats in CsIFIT1. Quantitative real time RT-PCR analysis showed that CsIFIT1 expression was most abundant in immune relevant organs and upregulated, in a time-dependent manner, by experimental infection with the fish viral pathogen megalocytivirus. When CsIFIT1 was overexpressed in tongue sole before megalocytivirus infection, viral replication in fish tissues was blocked to significant extents. Consistently, when CsIFIT1 expression in tongue sole was knocked down by siRNA, viral replication in fish tissues was significantly enhanced. Taken together, these results indicate that CsIFIT1 is likely a key factor of antiviral immunity and is required for optimal defense against viral infection. (C) 2014 Elsevier Ltd. All rights reserved. |
关键词 | Interferon-induced Protein Cynoglossus Semilaevis Antiviral Protein Rnai |
学科领域 | Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences |
DOI | 10.1016/j.fsi.2014.09.006 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000347017500014 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/24097 |
专题 | 实验海洋生物学重点实验室 研究生部 |
通讯作者 | Sun, L (reprint author), Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China. |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
第一作者单位 | 实验海洋生物学重点实验室 |
推荐引用方式 GB/T 7714 | Long, Hao,Sun, Li,Sun, L . CsIFIT1, an interferon-induced protein with tetratricopeptide repeat, inhibits viral infection in tongue sole (Cynoglossus semilaevis)[J]. FISH & SHELLFISH IMMUNOLOGY,2014,41(2):231-237. |
APA | Long, Hao,Sun, Li,&Sun, L .(2014).CsIFIT1, an interferon-induced protein with tetratricopeptide repeat, inhibits viral infection in tongue sole (Cynoglossus semilaevis).FISH & SHELLFISH IMMUNOLOGY,41(2),231-237. |
MLA | Long, Hao,et al."CsIFIT1, an interferon-induced protein with tetratricopeptide repeat, inhibits viral infection in tongue sole (Cynoglossus semilaevis)".FISH & SHELLFISH IMMUNOLOGY 41.2(2014):231-237. |
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