期刊
MOLECULAR IMMUNOLOGY
卷 46, 期 8-9, 页码 1710-1717出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.molimm.2009.02.006
关键词
Innate immunity; Toll-like receptor; DNA vaccine; Viral haemorrhagic septicaemia rhabdovirus; Rainbow trout; Tumour necrosis factor; Interleukin; Unmethylated CpG motifs; CXC chemokine receptor; Cluster of differentiation 83
资金
- Consolider ingenio 2010 [CSD2007-00002, AGL2008-03519-C04]
- Generalitat Valenciana (Spain)
The aim of this work was to improve the knowledge about the factors contributing to the immunogenicity of the DNA vaccines based on the viral haemorrhagic septicaemia virus glycoprotein G gene, through identifying the rainbow trout Toll-like receptor 9 (Omtlr9) gene that curiously contains an insertion of an incomplete transposon at the 5'-end of the third intron. Concerning the role played by this receptor in the fish innate defence, in response to the injection of a plasmid (pAE6) encoding or not the viral haemorrhagic septicaemia rhabdovirus (VHSV) glycoprotein G gene (pAE6-G), the presence of Omtlr9 transcripts remained unchanged in the fish secondary lymphoid organs while was highly increased at the injection site (muscle). The level of Omtlr9 transcripts correlated with those of cluster of differentiation 83 (cd83) and CXC chemokine receptor 4 (cxcr4), suggesting the recruitment of dendritic-like cells into the muscle as the source of Omtlr9 expressing cells. Transcription of turnout necrosis factor-alpha (tnf alpha) two cytokines directly related to TLR9 induction with unmethylated CpG and interleukin-6 (il6) genes, oligodeoxynucleotides (CpG ODNs), was solely observed in head kidney and spleen of the fish immunised with pAE6-G. Thus, the glycoprotein G of VHSV could be more implicated in triggering the pathways for TNF-alpha and IL6 production than the recognition of the unmethylated CpG motifs of the plasmid backbone by OmTLR9. Therefore, our results seem to indicate that OmTLR9-mediated recognition of plasmid DNA is not the key of the innate immune recognition of the adjuvant elements of fish DNA vaccines. (C) 2009 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据