Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| Molecular characterization and expression analysis of eleven interferon regulatory factors in half-smooth tongue sole, Cynoglossus semilaevis | |
| Zhang, Jian1; Li, Yong-xin2; Hu, Yong-hua1 | |
| 2015-05-01 | |
| 发表期刊 | FISH & SHELLFISH IMMUNOLOGY
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| 卷号 | 44期号:1页码:272-282 |
| 文章类型 | Article |
| 摘要 | Interferon regulatory factors (IRFs) act as transcription mediators in virus-, bacteria-, and interferon (IFN)-induced signaling pathways and play diverse functions in antimicrobial defense, immune modulation, hematopoietic differentiation, and cell apoptosis. In this study, we described for the first time eleven IRFs (IRF1, IRF1L, IRF2X1, IRF3, IRF4a, IRF4b, IRF5, IRF6, IRF7, IRF8, and IRF9) from half-smooth tongue sole (Cynoglossus semilaevis) and examined their tissue distributions and expression patterns under different conditions. The deduced protein sequences of these IRFs (except IRF1) share high identities (71.8-86.6%) with other corresponding IRFs in other teleosts, whereas the sequence identity of IRF1 with the corresponding IRF1 in other teleosts is only 58.1%. A conserved N-terminal DNA binding domain (DBD), which is characterized by a winged type helix-loop-helix motif with four to six tryptophan repeats, is present in all IRFs. Another conserved IRF associated domain (IAD), which mediates the interactions in the C-terminal part of the protein, is present in all IRFs except IRF1 and IRF2X1, which instead contain the IAD2 domain. Several special domains also were found, including a serine-rich domain (SRD) in IRF3, IRF4a, IRF4b, and IRF7; a proline-rich domain (PRD) in IRF9; nuclear localization signals (NLSs) in IRF5, IRF8, and IRF9; and a virus activated domain (VAD) in IRF5. Quantitative real time RT-PCR (qRT-PCR) analysis showed that expression of all IRFs occurred in multiple tissues. IRF1, IRF2X1, IRF4a, IRF5, IRF7, and IRF8 exhibited relatively high levels of expression in immune organs, whereas the other five IRFs displayed high levels of expression in non-immune organs. Infection with extracellular and intracellular bacterial pathogens and virus upregulated the expression of 1RFs in a manner that depended on tissue type, pathogen, and infection stage. Specifically, IRF1 and IRF2X1 were highly induced by bacterial and viral pathogens; IRF1L and IRF6 responded mainly to extracellular and intracellular bacterial pathogens; IRF3, IRF5, IRF7, IRF8, and IRF9 were markedly induced by intracellular bacterial pathogen and virus; IRF4a and IRF4b were mainly induced by virus and intracellular bacterial pathogen respectively. These results indicate that the IRFs of C semilaevis can be categorized into several groups which exhibit different expression patterns in response to the infection of different microbial pathogens. These results provide new insights into the roles of teleost IRFs in antimicrobial immunity. (C) 2015 Elsevier Ltd. All rights reserved. |
| 关键词 | Interferon Regulatory Factor Cynoglossus Semilaevis Antivirus Antibacteria Immune Defense |
| DOI | 10.1016/j.fsi.2015.02.033 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000353743900032 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/26954 |
| 专题 | 实验海洋生物学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Taishan Vocat Coll Nursing, Tai An 271000, Shandong, 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 | Zhang, Jian,Li, Yong-xin,Hu, Yong-hua. Molecular characterization and expression analysis of eleven interferon regulatory factors in half-smooth tongue sole, Cynoglossus semilaevis[J]. FISH & SHELLFISH IMMUNOLOGY,2015,44(1):272-282. |
| APA | Zhang, Jian,Li, Yong-xin,&Hu, Yong-hua.(2015).Molecular characterization and expression analysis of eleven interferon regulatory factors in half-smooth tongue sole, Cynoglossus semilaevis.FISH & SHELLFISH IMMUNOLOGY,44(1),272-282. |
| MLA | Zhang, Jian,et al."Molecular characterization and expression analysis of eleven interferon regulatory factors in half-smooth tongue sole, Cynoglossus semilaevis".FISH & SHELLFISH IMMUNOLOGY 44.1(2015):272-282. |
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