Molecular characterization of a novel CC chemokine in large yellow croaker (Pseudosciaena crocea) and its involvement in modulation of MHC class I antigen processing and presentation pathway

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	Molecular characterization of a novel CC chemokine in large yellow croaker (Pseudosciaena crocea) and its involvement in modulation of MHC class I antigen processing and presentation pathway
	Zhang, JZ ; Chen, XH
刊名	http://dx.doi.org/10.1016/j.molimm.2007.10.020
	2008-04
关键词	TROUT ONCORHYNCHUS-MYKISS FLOUNDER PARALICHTHYS-OLIVACEUS HERPES-SIMPLEX-VIRUS JAPANESE FLOUNDER IMMUNE-RESPONSE FUNCTIONAL-CHARACTERIZATION EXPRESSION ANALYSIS CHANNEL CATFISH DNA VACCINE CLONING
英文摘要	A novel CC chemokine gene was isolated from large yellow croaker (Pseudosciaena crocea) by expressed sequence tag (EST) analysis (LycCC). The open reading frame (ORF) of 300 nucleotides (m) of LycCC encodes a polypeptide of 100 amino acids (aa), including a 22-aa signal peptide and a 78-aa mature polypeptide. The deduced LycCC possesses the typical arrangement of four cysteines as found in other known CC chemokines (C-27 C-28, C-55 and C-77). Genomic analysis revealed that LycCC gene, spanning 2259 nt, consisted of three exons and two introns. Recombinant LycCC (rLycCC) protein produced in Pichia pastoris exhibited marked chemotactic activity for peripheral blood leucocytes (PBLs) from large yellow croaker. RT-PCR analysis showed that LycCC gene was constitutively expressed in all nine tissues examined, although at a different level. Upon stimulation with poly(I:C) or inactivated trivalent bacterial vaccine, LycCC gene expression was obviously up-regulated in kidney, gills, spleen, liver. intestine, blood and heart at 12 h post-induction, and poly(I:C) was more potent than bacterial vaccine in up-regulating LycCC expression. Time-course analysis using a real time PCR revealed that LycCC transcripts in spleen and kidney were quickly increased by either poly(I:C) or bacterial vaccine and reached their peak levels at 12 h, followed by a rapid decrease at 24 h. An in vivo administration of rLycCC could significantly up-regulate the expression of low molecular mass polypeptide 10 (LMP10), MHC class I alpha chain and beta 2-microglobulin (beta(2)m) in spleen, kidney and blood at 24 h after treatment. These results suggest that LycCC may not only have a pro-inflammatory function in immune response triggered by poly(I:C) or bacterial vaccine, but also be involved in adaptive immune response by modulating MHC class I antigen processing and presenting pathway in large yellow croaker. (C) 2007 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/70890]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	Zhang, JZ,Chen, XH. Molecular characterization of a novel CC chemokine in large yellow croaker (Pseudosciaena crocea) and its involvement in modulation of MHC class I antigen processing and presentation pathway[J]. http://dx.doi.org/10.1016/j.molimm.2007.10.020,2008.
APA	Zhang, JZ,&Chen, XH.(2008).Molecular characterization of a novel CC chemokine in large yellow croaker (Pseudosciaena crocea) and its involvement in modulation of MHC class I antigen processing and presentation pathway.http://dx.doi.org/10.1016/j.molimm.2007.10.020.
MLA	Zhang, JZ,et al."Molecular characterization of a novel CC chemokine in large yellow croaker (Pseudosciaena crocea) and its involvement in modulation of MHC class I antigen processing and presentation pathway".http://dx.doi.org/10.1016/j.molimm.2007.10.020 (2008).