›› 2007, Vol. 34 ›› Issue (12): 59-61.

• 生物技术 • 上一篇    下一篇

HCLV在PK-15细胞中的滴度和12-nt的变化

亢文华1,郝俊峰2,潘春刚1,宁宜宝3
  

  1. 1中牧股份实业有限公司,北京 100070; 2中国科学院生物物理研究所,北京 100101;3中国兽医药品监察所,北京 100081
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-12-20 发布日期:2007-12-20

Change of a 12-nt and Titer of HCLV in PK-15 Cells

KANG Wenhua1,HAO Junfeng2,PAN Chungang1,NIN
G Yibao3
  

  1. 1.China Animal Husbandry Industry Company,Beijing 100070,China;2.Institute of Biophysics Chinese Academy of Sciences,Beijing 100101,China;3.China Institute of Veterinary Drug Control,Beijing 100081,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20

摘要: 在PK-15细胞上连续传代获得的HCLV,从第1~25代病毒的测序结果一致,同源性为100%。从第26代开始在12-nt(ttttttctttttt)插入处出现变化,第26、27代在69位碱基
C的左右各多插入了一个T;第28、29代在碱基C的右侧多插入了2个T;第30、31代在C的左侧多插入了6个T,碱基C也变成了T;第32、33代在C的右侧缺失了2个T,碱基C也缺失;第34代在C的左侧缺失了5个T,在C的右侧缺失了5个T,碱基C也缺失,并且在第86位由原来的A变成G,第92位由原来的T变成C。将HCLV 1~34代病毒接种24孔板中长满单层的PK-15细胞,于接种后72 h进行荧光抗体检查,比较不同代次HCLV在PK-15细胞上增殖的差异。结果发现,从28代开始病毒滴度有所下降。

关键词: 猪瘟兔化弱毒株; 3’端非编码区; RT-PCR; 序列测定

Abstract: HCLV strain was grown in Primary bovine testicular cells, from 1 to 34serial passages were made continuously. The result of Sequence analysis showed
The homologies of 3’-UTR nucleotide sequence was 100% from 1 to 25 serial passages. 12-nt(ttttttctttttt) insertion began to change from 26 serial passages, two T more than 1 serial passages in 69 place from 26 to 27 serial passages, Two T more than 1 serial passages in 69 place from 28 to 29 serial passages, six T more than 1 serial passages in 69 place from 30 to 31 serial passages, two T lack than 1 serial passages in 69 place from 32 to 33 serial passages, ten T more than 1 serial passages in 69 place 34 serial passages, A to G in 86 place, T to C in 92 place. HCLV strain from 1 to 34 serial passages cultured in PK-15 cells, immuno fluorescence assay in 72 h, Detection the difference of HCLV from 1 to 34 serial passages. detection indicated the titer of HCLV began to decrease from 28 serial passages.

Key words: hog cholcra lapinized vaccine; 3’-UTR; RT-PCR; sequencing

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