病毒载体致突变性的实验研究

Study of viral vector for mutagenesis in tumor genetherapy

目的 :观察逆转录病毒pLXSN与腺病毒LacZ作为转基因载体所构建的转基因细胞的致突变作用 ,为转基因肿瘤细胞作为瘤苗进行临床提供安全性检测参数。方法 :将病毒与细胞共培养 ,用细胞DNA通过遗传毒理学实验技术进行体内和体外的致变性实验研究。结果 :转基因细胞DNA及培养上清液未显出致突变作用。结论

Objective:To observe mutagenesis of retrovirus and adenovirus as transgenic vector,and provide safe clinic evidence for transgenic tumor cell as tumor vaccin.Methods:Cells were cultured together with virus.Then,DNA and supernatant were carried on an in vestigation in mutagenesis by means of laboratory technique about genetic toxicology.Results:The result indicated that DNA and supernatant of transgenic cell had no mutagenesis through test both In vivo and in vitroConclusion:The virus modified had no mutagenesis as transgenic vector.