中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Toll-like receptor 4 signaling pathway can be triggered by grass carp reovirus and Aeromonas hydrophila infection in rare minnow Gobiocypris rarus

文献类型:期刊论文

作者Su, Jianguo1; Yang, Chunrong1; Xiong, Feng2; Wang, Yaping2; Zhu, Zuoyan2
刊名FISH & SHELLFISH IMMUNOLOGY
出版日期2009-07-01
卷号27期号:1页码:33-39
关键词Gobiocypris rarus Grass carp reovirus Aeromonas hydrophila Toll-like receptor 4 Gene cloning Characterization
ISSN号1050-4648
通讯作者Su, JG, NW A&F Univ, Shaanxi Key Lab Mol Biol Agr, 22 Xinong Rd, Yangling 712100, Peoples R China
中文摘要Toll-like receptor 4 (TLR4) is critical for LPS recognition and cellular responses. It also recognizes some viral envelope proteins. Detection mostly results in the inflammation rather than specific antiviral responses. However, it's unclear in fish. In this report, a TLR4 gene (named as GrTLR4b) was cloned and characterized from rare minnow Gobiocypris rarus. The full length of GrTLR4b cDNA consists of 2766 nucleotides and encodes a polypeptide of 818 amino acids with an estimated molecular mass of 94,518 Da and a predicted isoelectric point of 8.41. The predicted amino acid sequence comprises a signal peptide, six leucine-rich repeat (LRR) motifs, one leucine-rich repeat C-terminal (LRRCT) motif, followed by a transmembrane segment of 23 amino acids, and a cytoplasmic region of 167 amino acids containing one Toll - interleukin 1 - receptor (TIR) motif. It's closely similar to the zebrafish (Danio rerio) TLR4b amino acid sequence with an identity of 77%. Quantitative RT-PCR analysis showed GrTLR4b mRNA was constitutive expression in gill, heart, intestine, kidney, liver, muscle and spleen tissues in healthy animals and up-regulated by viruses and bacteria. After being infected by grass carp reovirus or Aeromonas hydrophila, GrTLR4b expressions were up-regulated from 24 h post-injection and lasted until the fish became moribund (P < 0.05). These data implied that TLR4 signaling pathway could be activated by both viral and bacterial infection in rare minnow. (C) 2009 Elsevier Ltd. All rights reserved.
英文摘要Toll-like receptor 4 (TLR4) is critical for LPS recognition and cellular responses. It also recognizes some viral envelope proteins. Detection mostly results in the inflammation rather than specific antiviral responses. However, it's unclear in fish. In this report, a TLR4 gene (named as GrTLR4b) was cloned and characterized from rare minnow Gobiocypris rarus. The full length of GrTLR4b cDNA consists of 2766 nucleotides and encodes a polypeptide of 818 amino acids with an estimated molecular mass of 94,518 Da and a predicted isoelectric point of 8.41. The predicted amino acid sequence comprises a signal peptide, six leucine-rich repeat (LRR) motifs, one leucine-rich repeat C-terminal (LRRCT) motif, followed by a transmembrane segment of 23 amino acids, and a cytoplasmic region of 167 amino acids containing one Toll - interleukin 1 - receptor (TIR) motif. It's closely similar to the zebrafish (Danio rerio) TLR4b amino acid sequence with an identity of 77%. Quantitative RT-PCR analysis showed GrTLR4b mRNA was constitutive expression in gill, heart, intestine, kidney, liver, muscle and spleen tissues in healthy animals and up-regulated by viruses and bacteria. After being infected by grass carp reovirus or Aeromonas hydrophila, GrTLR4b expressions were up-regulated from 24 h post-injection and lasted until the fish became moribund (P < 0.05). These data implied that TLR4 signaling pathway could be activated by both viral and bacterial infection in rare minnow. (C) 2009 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科主题Fisheries; Immunology; Marine & Freshwater Biology; Veterinary Sciences
类目[WOS]Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
研究领域[WOS]Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
关键词[WOS]RESPIRATORY SYNCYTIAL VIRUS ; MESSENGER-RNA DEGRADATION ; INNATE IMMUNITY ; EXPRESSION ANALYSIS ; TLR4 POLYMORPHISMS ; ADAPTIVE IMMUNITY ; GENE FAMILY ; ENDOTOXIN ; SEQUENCE ; TIR
收录类别SCI
资助信息National Natural Science Foundation of China [30871917]; SRF [14110104]
语种英语
WOS记录号WOS:000267478200005
公开日期2010-10-13
源URL[http://ir.ihb.ac.cn/handle/152342/7674]  
专题水生生物研究所_中科院水生所知识产出(2009年前)_期刊论文
作者单位1.NW A&F Univ, Shaanxi Key Lab Mol Biol Agr, Yangling 712100, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
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Su, Jianguo,Yang, Chunrong,Xiong, Feng,et al. Toll-like receptor 4 signaling pathway can be triggered by grass carp reovirus and Aeromonas hydrophila infection in rare minnow Gobiocypris rarus[J]. FISH & SHELLFISH IMMUNOLOGY,2009,27(1):33-39.
APA Su, Jianguo,Yang, Chunrong,Xiong, Feng,Wang, Yaping,&Zhu, Zuoyan.(2009).Toll-like receptor 4 signaling pathway can be triggered by grass carp reovirus and Aeromonas hydrophila infection in rare minnow Gobiocypris rarus.FISH & SHELLFISH IMMUNOLOGY,27(1),33-39.
MLA Su, Jianguo,et al."Toll-like receptor 4 signaling pathway can be triggered by grass carp reovirus and Aeromonas hydrophila infection in rare minnow Gobiocypris rarus".FISH & SHELLFISH IMMUNOLOGY 27.1(2009):33-39.

入库方式: OAI收割

来源:水生生物研究所

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