›› 2015, Vol. 42 ›› Issue (7): 1686-1691.doi: 10.16431/j.cnki.1671-7236.2015.07.010

• 生物技术 • 上一篇    下一篇

水貂阿留申病基因工程诊断抗原的制备

张蕾1, 柴秀丽1, 冯佩平1, 张海玲1, 胡博1, 白雪1, 赵建军1, 冯卓1, 王振军1, 徐磊2, 闫喜军1, 吴威1   

  1. 1. 中国农业科学院特产研究所, 吉林省特种动物分子生物学省部共建国家重点实验室, 长春 130112;
    2. 中国兽医药品监察所, 北京 100081
  • 收稿日期:2014-12-16 出版日期:2015-07-20 发布日期:2015-07-23
  • 通讯作者: 闫喜军 E-mail:yanxijunjmp163.com
  • 作者简介:张蕾(1979-),女,吉林榆树人,博士,副研究员,研究方向:毛皮动物诊断制剂,E-mail:908834146@qq.com
  • 基金资助:
    吉林省科技发展计划项目(201201001);吉林省科技攻关计划(20140204074NY)

Preparation of Genetic Engineering Diagnostic Antigen of Mink Aleutian Disease

ZHANG Lei1, CHAI Xiu-li1, FENG Pei-ping1, ZHANG Hai-ling1, HU Bo1, BAI Xue1, ZHAO Jian-jun1, FENG Zhuo1, WANG Zhen-jun1, XU Lei2, YAN Xi-jun1, WU Wei1   

  1. 1. State Key Laboratory for Molecular Biology of Special Economic Animals, Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun 130112, China;
    2. China Institute of Verterinary Drug Control, Beijing 100081, China
  • Received:2014-12-16 Online:2015-07-20 Published:2015-07-23

摘要: 本研究旨在建立一种生产水貂阿留申病(Aleutian disease,AD)诊断抗原的新方法。试验提取水貂阿留申病毒(Aleutian disease virus,ADV)的基因组,PCR扩增ADV核衣壳蛋白VP2基因,构建重组表达质粒Bacmid-VP2,脂质体介导其转染昆虫细胞Sf9获得重组杆状病毒AcMVPV-VP2。电镜下观察表达的VP2蛋白,Western blotting检测目的蛋白的反应原性。以传统接毒方法生产的AD诊断抗原作对照,通过对流免疫电泳试验检测表达蛋白的生物学活性。结果表明,表达的重组VP2蛋白在电镜下组装成病毒样颗粒且能与ADV阳性血清发生反应。与商业诊断抗原相比,重组抗原诊断AD的阴阳性的符合率为100%。该方法可成为生产AD诊断抗原的替代方法。

关键词: 水貂阿留申病; 基因工程; 诊断抗原

Abstract: To develop a new method of Aleutian disease (AD) diagnostic antigen production,we used Bac-to-Bac expression system in this study.Firstly,Aleutian disease virus (ADV) genome was extracted and ADV VP2 gene was amplified by PCR method.Then Bacmid-VP2 was constructed and transfected into insect cell Sf9 by liposomes to construct AcMVPV-VP2.Secondly,the VP2 protein was observed by electromicroscope and antigency was detected by Western blotting.At last,the activity of recombinant protein was inspected by countercurrent immunoelectrophoresis.The results showed that the expressed recombinant VP2 protein could react with ADV positive serum and form virus like particles.Compared with the commercial diagnostic antigen,the coincidence rate of recombinant antigen was 100%.This method could be a candidate for AD diagnostic antigen production.

Key words: mink Aleutian disease; genetic engineering; diagnostic antigen

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