中国畜牧兽医

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靶向envLTR基因的siRNA抑制ALV-J 复制的研究

李娇, 冯少珍, 黄武, 吴晓婵, 李育豪, 曹伟胜, 廖明   

  1. 华南农业大学兽医学院,农业部兽用疫苗创制重点实验室,广东广州 510642
  • 收稿日期:2012-02-07 出版日期:2012-08-20 发布日期:2012-08-24
  • 通讯作者: 廖明 E-mail:mliao@scau.edu.cn
  • 作者简介:李娇(1988-),女,湖南人,硕士生,研究方向:动物传染病。
  • 基金资助:

    NSFC-广东联合基金(U0831002);国家肉鸡产业技术体系项目(nycytx-42-G3-03);广东省自然科学基金项目(S2011010001946;10451064201005432)。

siRNAs Targeted to env and LTR Gene for Inhibition of Avian Leukosis Virus Subgroup J Replication

LI Jiao, FENG Shao-zhen, HUANG Wu, WU Xiao-chan, LI Yu-hao, CAO Wei-sheng, LIAO Ming   

  1. MOA Key Laboratory for Animal Vaccine Development,College of Veterinary Medicine, South China Agricultural University,Guangzhou 510642,China
  • Received:2012-02-07 Online:2012-08-20 Published:2012-08-24

摘要: 试验针对J亚群禽白血病病毒的envLTR基因,根据它们的保守序列,分别设计合成了4~5对siRNA,并将其克隆至pSilencer 4.1,构建siRNA重组表达质粒。将该质粒转染DF-1细胞6 h后以103 TCID50接种ALV-J,利用Real-time RT-PCR在mRNA表达水平检测各重组质粒对病毒复制的影响。结果表明,与阴性对照相比,pSi4.1-env各重组质粒对env基因的抑制效果达到18.15%~63.43%,pSi4.1-LTR各重组质粒的抑制效果则达到19.37%~45.41%。

关键词: J亚群禽白血病病毒; env基因; LTR基因; siRNA

Abstract: According to the env and LTR gene of avian leukosis virus subgroup J, 4 and 5 short hairpin RNAs (shRNAs) targeting their conserved sequences were designed systhessised and cloned into pSilencer 4.1 vector respectively. The recombinant plasmids were transfected into DF-1 cell and infected with 103 TCID50 ALV-J at 6 hours post-transfection, the efficiency of RNA interfering was assayed by Real-time RT-PCR .The results revealed that the recombinant plasmids of pSi4.1-env inhibited virus growth by 18.15% to 63.43% and pSi4.1-LTR by 19.37% to 45.41% compared to negative control.

Key words: avian leukosis virus subgroup J virus; env gene; LTR gene; siRNA

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