Ⅰ型牛疱疹病毒TK-/gE- 基因双缺失突变株生物学特性
作者:
作者简介:

定明,男,(1986 -),研究实习员,主要从事人兽共患传染病研究。E-mail:raydming@yahoo.com.cn。

基金项目:

农业公益性行业科研专项资助项目(200803018)。


Study on the Characteristics of BHV-1 TK-/gE-/EGFP+ Gene-deleted Mutant Virus Strain
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [8]
  • |
  • 相似文献
  • |
  • 引证文献
  • | |
  • 文章评论
    摘要:

    目的构建Ⅰ型牛疱疹病毒(BHV-1)的TK-/gE-双缺失突变株,检测其生物学功能,为治疗牛传染性鼻气管炎提供参考。方法构建了带有EGFP 表达盒的BHV-1 TK-/gE-双缺失突变株。通过southern杂交、蛋白质斑点印迹、空斑试验、MDBK细胞增殖实验等技术方法,对重组基因所构成病毒突变株的生物学特性进行鉴定。结果Southern杂交及蛋白斑点印迹表明,课题组成功构建了带有EGFP表达盒的双缺失突变株;该突变株具有与野生株相当的繁殖力,但TK-/gE-成功缺失,毒力大幅减弱;BHV-1 TK-/gE-遗传稳定,不会返强。结论本项目组成功构建了Ⅰ型牛疱疹病毒(BHV-1)的TK-/gE-双缺失突变株,该缺失株具有良好的安全性和稳定性,为该突变株进一步作为生物安全疫苗和多价病毒载体提供了依据,为预防和治疗牛传染性鼻气管炎提供了技术支持。

    Abstract:

    ObjectiveTo detect the function of I BHV-1 TK-/gE-/ EGFP+ gene-deleted mutant virus strain, find a new method to prevent infectious bovine rhinotracheitis (IBR), the charaction of TK-/gE-/ EGFP+ gene-deleted mutant virus strain was further studied. Methods Southern hybridization, western dot blot and Plaques test were employed in this investment. ResultsTK gene is deleted and the mutant cannot produce glycoprotein E when gE gene is deleted. The diameter of mutant strain much smaller than that of field strain, the mutant strain grows on MDBK cells and the virus titer can keep 106.0TCID50/0.1 mL for more than 40 hours, which indicated that the mutant strain inherit instantly. Conclusion The gene-deleted mutant virus strain was successful constructed in this study, and the mutant virus strain was stable. This will be useful for the further study of IBR.

    参考文献
    [1] Graham, F.L.and Van der Eb[J].A.J.Virology ,3,2:456.
    [2] Hutchings DL.Lymphocyte proliferative responses to separated bovine herpesvirus 1 proteins in immune cattle[J].J Virol, 0,4:5114-5122.
    [3] Kaashoek M.J.Early immunity induced by a live gE-negative bovine herpesvirus 1 marker vaccine[J].J.Vet.Microbiol, 6,3:20-26.
    [4] Smith GA.Development and trial of a bovine herpesvirus 1-thymidine kinase deletion virus as a vaccine[J].Aust Vet J, 1994; 71:65-70.
    [5] 李继昌,于少军,等.牛传染性鼻气管炎病的研究进展[J].黑龙江畜牧兽医,2002,4:50.
    [6] 萨姆布鲁克(美),E.F.弗里奇,T曼尼阿蒂斯著。金冬雁,黎孟枫等译。分子克隆实验指南(第二版)[M/T].科学技术出版社,1996.
    [7] 殷震,刘景华.动物病毒学(第二版)[M].北京:科学出版社,1997.
    [8] 周泰冲,叶章明,等.从新西兰进口奶牛中分离传染性牛鼻道气管炎病毒[J].兽医科技杂志,1981:8-11.
    相似文献
    引证文献
引用本文

定明,范强,时彦胜,张小飞,张广州,李春,白杰英,刘正飞.Ⅰ型牛疱疹病毒TK-/gE- 基因双缺失突变株生物学特性[J].中国比较医学杂志,2012,(7):5~8.

复制
分享
文章指标
  • 点击次数:2092
  • 下载次数: 1770
  • HTML阅读次数: 0
  • 引用次数: 0
历史
防诈骗提示!请勿点击不明链接或添加个人微信。编辑部所有邮箱后缀均为@cnilas.org
关闭