›› 2009, Vol. 36 ›› Issue (6): 56-60.

• 生物技术 • 上一篇    下一篇

从全长cDNA克隆恢复猪瘟病毒方法的研究

范运峰1,2,赵启祖1,赵耘1,邹兴启1,张仲秋1,2,王琴1,宁宜宝1   

  1. (1.中国兽医药品监察所, 北京 100081; 2.中国动物疫病预防控制中心, 北京 100026)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-20 发布日期:2009-06-20
  • 通讯作者: 赵启祖

The Study of Recovered Infectious Classical Swine Fever Virus from Full-length cDNA Clone

FAN Yun-feng1,2,ZHAO Qi-zu1, ZHAO Yun1, ZOU Xing-qi1, ZHANG Zhong-qiu1,2,WANG Qin1, NING Yi-bao1   

  1. (1.China Institute of Veterinary Drug Control, Beijing 100081, China; 2.China Animal Disease Control Center, Beijing 100026, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-20 Published:2009-06-20

摘要: 以携带猪瘟病毒Thiverval株全长cDNA克隆的pAC/F101/T1-7载体质粒为模板,在体外转录病毒基因组RNA,并转染PK-15和BHK-21细胞,通过传代、RT-PCR、免疫过氧化物酶细胞单层试验鉴定,成功地在两种细胞中拯救出具有感染性的病毒粒子。同时,通过2种细胞转染效率的对比试验,成功建立了利用高转染效率的其它真核细胞作为病毒拯救的过渡细胞,然后再在猪肾细胞系上进行增殖的病毒拯救方式,极大提高了猪瘟病毒拯救的效率。

关键词: 瘟病毒; 疫苗Thiverval株; 全长cDNA克隆; 病毒拯救

Abstract: The viral RNA was synthesized in vitro with T7 RNA polymerase using recombinant plasmid pAC/F101/T1-7 as a model, which contained the complete genome of CSFV Thiverval strain, and transfected into PK-15 and BHK-21 cells. After the cell passage, RT-PCR detection and immunoperoxidase monolayer assay with E2 monoclonal antibody, the results indicated that the virus had been rescued successfully from the Thiverval strain full-length cDNA clone in two cells. At the same time, through the comparison of transfected efficiency of PK-15 and BHK-21 cells, the new method of CSFV virus rescue was established that using the high thansfected efficiency cells as transfection and porcine kidney cells as multiplication. This method highly enhanced efficiency of CSFV virus rescue.

Key words: classical swine fever virus; Thiverval strain; full-length cDNA clone; virus rescue

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