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学科主题: Immunology; Veterinary Sciences
题名: RNAi suppression of zebrafish peptidoglycan recognition protein 6 (zfPGRP6) mediated differentially expressed genes involved in Toll-like receptor signaling pathway and caused increased susceptibility to Flavobacterium columnare
作者: Chang, M. X.; Nie, P.1
通讯作者: Nie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
关键词: zebrafish ; Flavobacterium columnare ; zfPGRP6 ; TLR ; beta-defensin
刊名: VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY
发表日期: 2008-08-15
DOI: 10.1016/j.vetimm.2008.04.003
卷: 124, 期:3-4, 页:295-301
收录类别: SCI
文章类型: Article
部门归属: [Nie, P.] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Lab Fish Dis, Wuhan 430072, Hubei, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China [30500380]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-YW-N-021]
类目[WOS]: Immunology ; Veterinary Sciences
研究领域[WOS]: Immunology ; Veterinary Sciences
摘要: In Drosophila, Toll signaling cascade, which resembles the mammalian Toll-like receptor (TLR)/IL-1R signaling pathways and regulates the expression of anti-microbial peptide genes, mainly relies on peptidoglycan recognition proteins (PGRPs) for the detection of bacterial pathogens. To explore the effect of zebrafish peptidoglycan recognition protein 6 (zfPGRP6) on Toll-like receptor signaling pathway, RNA interference (siRNA) and real time quantitative PCR (RQ-PCR) methods were used to identify differentially expressed genes regulated by zfPGRP6. The target genes included TLR2, TLR3, TLR5, TLR7, TLR8, IL1R, Sterile-alpha and Armadillo motif containing protein (SARM), myeloid differentiation factor 88 (MyD88) and nuclear factor (NF)-kappa B2 (p100/p52). The results of RQ-PCR showed that RNAi-mediated Suppression of zfPGRP6 significantly down-regulated the expression of TLR2, TLR5, IL1R, SARM, MyD88 and p100/p52. The expression of beta-defensin-1 was also down-regulated in those embryos silenced by zfPGRP6. In challenge experiments to determine the anti-bacterial response to Gram-negative bacteria, RNAi knock-down of zfPGRP6 markedly increased susceptibility to Flavobacterium columnare. (C) 2008 Elsevier B.V. All rights reserved.
英文摘要: In Drosophila, Toll signaling cascade, which resembles the mammalian Toll-like receptor (TLR)/IL-1R signaling pathways and regulates the expression of anti-microbial peptide genes, mainly relies on peptidoglycan recognition proteins (PGRPs) for the detection of bacterial pathogens. To explore the effect of zebrafish peptidoglycan recognition protein 6 (zfPGRP6) on Toll-like receptor signaling pathway, RNA interference (siRNA) and real time quantitative PCR (RQ-PCR) methods were used to identify differentially expressed genes regulated by zfPGRP6. The target genes included TLR2, TLR3, TLR5, TLR7, TLR8, IL1R, Sterile-alpha and Armadillo motif containing protein (SARM), myeloid differentiation factor 88 (MyD88) and nuclear factor (NF)-kappa B2 (p100/p52). The results of RQ-PCR showed that RNAi-mediated Suppression of zfPGRP6 significantly down-regulated the expression of TLR2, TLR5, IL1R, SARM, MyD88 and p100/p52. The expression of beta-defensin-1 was also down-regulated in those embryos silenced by zfPGRP6. In challenge experiments to determine the anti-bacterial response to Gram-negative bacteria, RNAi knock-down of zfPGRP6 markedly increased susceptibility to Flavobacterium columnare. (C) 2008 Elsevier B.V. All rights reserved.
关键词[WOS]: PEPTIDOGLYCAN RECOGNITION PROTEINS ; EPITHELIAL-CELLS ; INNATE IMMUNITY ; TELEOST FISH ; DANIO-RERIO ; ZEBRAFISH ; PGRPS ; HOMOLOGS ; FAMILY ; TRIF
语种: 英语
WOS记录号: WOS:000258638500010
ISSN号: 0165-2427
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8028
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Lab Fish Dis, Wuhan 430072, Hubei, Peoples R China

Recommended Citation:
Chang, M. X.; Nie, P..RNAi suppression of zebrafish peptidoglycan recognition protein 6 (zfPGRP6) mediated differentially expressed genes involved in Toll-like receptor signaling pathway and caused increased susceptibility to Flavobacterium columnare,VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY,2008,124(3-4):295-301
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