生物技术通报 ›› 2014, Vol. 0 ›› Issue (12): 190-194.doi: 10.13560/j.cnki.biotech.bull.1985.2014.12.032

• 研究报告 • 上一篇    下一篇

PRRS 病毒主要受体蛋白CD151CD163真核表达载体的构建

阮征1,2, 李杰1, 刘开武2 ,王莲芳1 ,华娟1 ,胡小明3 ,刘杰1,3 ,黄海军1,4   

  1. 1. 武汉市畜牧兽医科学研究所,武汉 430208; 2. 武汉市重大动物疫病防控中心,武汉 430023; 3. 华中农业大学 猪遗传育种农业部重点 实验室 & 农业动物遗传育种与繁殖教育部重点实验室,武汉 430070; 4. 武汉市畜牧兽医局,武汉 430023
  • 收稿日期:2014-09-22 出版日期:2014-12-08 发布日期:2014-12-12
  • 作者简介:阮征,男,学士,高级兽医师,研究方向:动物疫病防控;E-mail:paper2006@sina.cn
  • 基金资助:
    国家自然科学基金项目(31201938),武汉市科技局项目(2013020705070350-9,2013020705070350-14),武汉市农科院创新项 目(CX201309),武汉市农科院青年英才项目(YC201101)

Construction of Eukaryotic Expression Vector for the CD151 and CD163 Receptor Proteins of Porcine Reproductive and Respiratory Syndrome Virus

1,2Ruan Zheng,1Li Jie,2Liu Kaiwu,1Wang Lianfang,1Hua Juan,3Hu Xiaoming,1,3Liu Jie,1,4Huang Haijun   

  1. (1 .Wuhan Institute of Animal and Veterinary Science, Wuhan 430208; 2. Wuhan Animal Disease Prevention and Control Center, Wuhan 430023; Key Laboratory of Swine Breeding and Genetics, Ministry of Agriculture & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction(Huazhong Agricultural University), Ministry of Education, Wuhan 430070; 4. Wuhan Bureau of Animal Husbandry and Veterinary, Wuhan 430023)
  • Received:2014-09-22 Published:2014-12-08 Online:2014-12-12

摘要: 为了进一步研究 PRRSV 与细胞受体之间的相互作用机理,通过基因工程方法从 PAM 细胞中克隆获得了 CD151 和 CD163 全长编码片段,利用 Sal I 和 Kpn I 内切酶对回收得到的 CD151(762 bp)和 CD163(3 333 bp)DNA 片段进行酶切,构建了 pIRES2-EGFP-CD151 和 pIRES2-EGFP-CD163 真核表达载体。经 PCR 和酶切鉴定后,分别提取重组质粒进行细胞转染。荧光显微 镜下可见单独转染 CD151 和 CD163 基因或 CD151/CD163 共转染的 Marc 145 细胞表达强烈的绿色荧光,Western blot 分析结果进一 步证实,CD151 和 CD163 蛋白在转染后的细胞中获得超表达。猪 CD151 和 CD163 真核表达载体的成功构建为进一步探索 CD151 和 CD163 在 PRRSV 感染细胞过程中的协同作用提供了物质基础,特别是对深入研究 PRRS 病毒的入侵及宿主识别具有重要意义。

关键词: 猪繁殖与呼吸综合征病毒, CD151, 分子, CD163, 分子, 真核表达载体, 细胞转染

Abstract: In order to study the interaction mechanism between the PRRSV and cell receptors, the CD151 and CD163 code fragments were obtained from PAM cells by PCR. These PCR products were digested with Sal I and Kpn I, then inserted into pIRES2-EGFP vectors separately to construct eukaryotic expression plasmid pIRES2 EGFP - CD151 or pIRES2 EGFP - CD163. These vectors were identified by the methods of restriction enzyme digestion, PCR and sequencing. Marc 145 cells transfected with CD151 or CD163 or CD151/CD163 expressed strong green fluorescence, which was further confirmed by western blot. The successful establishment of eukaryotic expression vectors of CD151 and CD163 provides the material foundation for the further exploring the synergistic effect of CD151 and CD163 in the process of PRRSV infection, especially to the further study of PRRS virus invasion and the host identification.

Key words: Porcine reproductive and respiratory syndrome, CD151, CD163, Eukaryotic expression vector, Cell transfection