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聚合酶链反应检测4种猪源细胞系中的内源性反转录病毒(英文) 被引量:8

Polymerase Chain Reaction Detection for Porcine Endogenous Retrovirus in 4 Pig Cell Lines
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摘要 为了建立检测猪内源性反转录病毒 (porcine endogenous retrovirus,PERV)的特异性方法 ,根据已发表的 PERV的序列 ,设计并合成了针对 PERV核心蛋白 (gag)、多聚酶 (pol)、囊膜蛋白 (env)基因的 3对引物 ,预期扩增片段分别为 36 1、15 0、2 6 5 bp。应用 PCR技术检测了 PERV在 4株猪源细胞中的整合情况。结果表明 ,在所有被检细胞的基因组中均存在有 PERV的前病毒序列 ;应用 RT- PCR检测上述 4株猪源细胞中 PERV特异性 m RNA的表达 ,结果均为阳性。试验还对建立的上述 2种方法的特异性进行了探讨 ,结果表明试验建立的 PERV检测法具有较高的特异性。该方法的建立为进一步研究 PERV奠定了基础 ,还可对异种移植动物模型及异种移植受体进行病原安全性监测。 Porcine endogenous retroviruses (PERV) can infect human cell in vitr o, which raised widely concerns regarding the transmission of PERV to xenograft re cipients. It′s essential to establish a method for detection of PERV. 3 pairs o f primers were synthesized according to the sequence of gag, pol and env gene of PERV. Polymerase chain reaction (PCR) and reverse transcription PCR (RT-PCR) a ssays were performed for detection of PERV provirus DNA and PERV specific mRNA. The results showed that provirus DNA and mRNA of PERV existed and expressed in a ll 4 tested cell lines. The sizes of amplified fragments are identical with the predicted. These methods may be suitable for monitoring PERV in other cells or t issue.
出处 《中国兽医学报》 CAS CSCD 北大核心 2003年第1期1-3,共3页 Chinese Journal of Veterinary Science
基金 国家自然科学基金资助项目 ( 30 2 70 989) 国家社会公益研究专项资金资助项目 ( 2 0 0 1DIA40 0 36 )~~
关键词 聚合酶链反应检测 猪源细胞系 内源性反转录病毒 porcine endogenous retrovirus polymerase chain re action detection pig cell lines
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