畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (9): 1613-1619.doi: 10.11843/j.issn.0366-6964.2015.09.017

• 预防兽医 • 上一篇    下一篇

禽呼肠孤病毒蛋白质启动PI3K/Akt信号通路的分析

谢丽基,谢芝勋*,黄莉,谢志勤,邓显文,刘加波,罗思思,黄娇玲, 曾婷婷,张艳芳,王盛   

  1. (广西壮族自治区兽医研究所 广西畜禽疫苗新技术重点实验室, 南宁 530001)
  • 收稿日期:2014-12-19 出版日期:2015-09-23 发布日期:2015-09-22
  • 通讯作者: 谢芝勋, E-mail: xiezhixun@126.com
  • 作者简介:谢丽基(1981-),女,广西灵山人,副研究员,硕士,主要从事动物传染病病原分子生物学研究, Tel:0771-3120371, E-mail: xie3120371@126.com
  • 基金资助:

    国家自然科学基金项目(31160512);广西特聘专家专项(2011B020);广西科技重大专项(1222003-2-4)

The Study of the Activation of PI3K/Akt Pathway by the Protein of Avian Reovirus

XIE Li-ji,XIE Zhi-xun*,HUANG Li,XIE Zhi-qin,DENG Xian-wen,LIU Jia-bo,LUO Si-si,HUANG Jiao-ling,ZENG Ting-ting,ZHANG Yan-fang,WANG Sheng   

  1. (Guangxi Veterinary Research Institute,Guangxi Key Laboratory of Animal Vaccines and Diagnostics,Nanning 530001,China )
  • Received:2014-12-19 Online:2015-09-23 Published:2015-09-22

摘要:

旨在找出激活PI3K/Akt信号通路的禽呼肠孤病毒(ARV)蛋白质。选取ARV中潜在具有激活PI3K/Akt信号通路活性的σA、σNS、μA、μB和μNS蛋白作为研究对象,将这5个基因克隆到真核表达载体pcAGEN,成功构建重组质粒σA-pcAGEN、σNS-pcAGEN、μA-pcAGEN、μB-pcAGEN和μNS-pcAGEN。将构建的重组质粒转染Vero细胞,采用间接免疫荧光和Western blot检测目的蛋白质的表达,并通过流式细胞术和Western blot,检测转染后Vero细胞磷酸化Akt(P-Akt)的表达量。结果显示,5个目的蛋白质均得到表达。转染σA-pcAGEN或σNS-pcAGEN的Vero细胞,P-Akt的表达量明显升高,而使用PI3K特异性抑制剂LY294002则能抑制P-Akt的表达量明显升高。结果表明,ARV的σA蛋白和σNS蛋白能激活细胞的PI3K/Akt信号通路。

关键词: 禽呼肠孤病毒, PI3K/Akt信号通路, 蛋白质

Abstract:

This study was conducted to find out the avian reovirus (ARV) proteins which can activate the phosphatidylinositol 3-Kinase-dependent Akt(PI3K/Akt) pathway.According to the analysis of amino acid sequence of ARV proteins,the σA,σNS,μA,μB and μNS were selected as the putative proteins which mediated the activation of PI3K/Akt pathway.Reconbinant plasmids,σA-pcAGEN,σNS-pcAGEN,μA-pcAGEN,μB-pcAGEN and μNS-pcAGEN were constructed and transfected into Vero cells,and the expression of the target genes were identified by immunofluorescence test and Western blot.The phosphorylated Akt (P-Akt) profile of transfected cells were examined by flow cytometry and Western blot.The results showed that σA,σNS,μA,μB and μNS genes were expressed in the Vero cells,and the expression of P-Akt of σA-pcAGEN and σNS-pcAGEN groups increased markedly.The PI3K inhibitor LY294002 could inhibit the expression of the P-Akt of σA-pcAGEN and σNS-pcAGEN groups.The results indicate that σA and σNS protein could activate the PI3K/Akt pathway.

Key words: ARV, PI3K/Akt pathway, protein

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