通过负链RNA病毒反向遗传操作技术,成功救获了表达增强绿色荧光蛋白(Enhanced green fluorescent protein,EGFP)的重组印地安纳株水疱性口炎病毒(Vesicular stomatitis virus Indianaserotype)。救获的重组病毒保持了野生型VsV高滴度生长特性,细胞连续传代10次仍保持GFP的稳定表达及生物学特性不变。本研究为VSV作为新型重组活病毒载体疫苗和肿瘤治疗载体研制及基础病毒学相关研究提供了理想的技术平台。
The establishment of reverse genetic for non-segment negative single strand RNA viruses has made the vesicular stomatitis virus (VSV) an attractive candidate as viral vector. In this study, a recombinant VSV Indiana strain rVSV-EGFP expressing enhanced green fluorescent protein (EGFP) was generated by reverse genetics techniques. The GFP expression of rVSV-EGFP was stable for at least ten passages on BHK21 cells. There was no significant difference in replication kinetics between rVSV-EGFP and parent wild type VSV. The reverse genetic system established for VSV-Ind provided a useful platform for development of novel live viral vector vaccines in the future.