Objective To investigate the effects of combination adenovirusmediated HSVtk/GCV system and antisense IGF1 gene therapy for rat glioma and analyze the mechanism.Methods Using the recombinant adenovirus vector,GCV kill...Objective To investigate the effects of combination adenovirusmediated HSVtk/GCV system and antisense IGF1 gene therapy for rat glioma and analyze the mechanism.Methods Using the recombinant adenovirus vector,GCV killing effeciency after combined gene transfer of HSVtk and antisense IGF1 was observed in vitro.Rat glioma was treated with HSVtk/GCV and antisense IGF1 and the survival rate of rats was observed.Results C6 cells transfected with tk and antisense IGF1 gene were more sensitive to GCV than that transfected with tk gene alone.The survival of the combination gene therapy group was prolonged significantly and large amounts of CD+ 4,CD+ 8 lymphocytes were detected in the tumor tissues.Conclusion Antisense IGF1 gene may enhance the tumorkilling effects of HSVtk/GCV.展开更多
substituted 6 aza 2’ deoxyuridines are inhibitors of herps simplex virius type 1 thymidine kinase (HSV 1 TK). In this paper, the semiempirical self consistent field PM3 calculations have been undertaken for two typic...substituted 6 aza 2’ deoxyuridines are inhibitors of herps simplex virius type 1 thymidine kinase (HSV 1 TK). In this paper, the semiempirical self consistent field PM3 calculations have been undertaken for two typical HSV 1 TK inhibitors: compound (I) and (II)(to see Fig.1). Their active sites have been discussed on the basis of studies of electronic structure and correlative analysis. The molecular docking between the two inhibitors and HSV 1 TK active center has also been carried out. It is found that the major binding forces between the two inhibitors and enzyme arise from hydrogen bonding interactions and lipophilic stacking interactions. The result may be used for rational molecular design of new and more potent HSV 1 TK inhibitors.展开更多
将 I型牛疱疹病毒 (BHV- 1 ) LA株DNA H ind III A片段中的 Sal I- Sal I亚片段(含 TK基因 )克隆到载体质粒 p BluescriptSK中 ,再用 Bgl II和 Sac I切去 347bp,获得含 TK基因部分缺失的重组质粒 p Sd TK,然后用 H ind III和 Xba I切去...将 I型牛疱疹病毒 (BHV- 1 ) LA株DNA H ind III A片段中的 Sal I- Sal I亚片段(含 TK基因 )克隆到载体质粒 p BluescriptSK中 ,再用 Bgl II和 Sac I切去 347bp,获得含 TK基因部分缺失的重组质粒 p Sd TK,然后用 H ind III和 Xba I切去其中的多克隆位点 ;将来源于 p CR3- Uni的 CMV启动子、多克隆位点和 BGH poly A信号插入 p Sd TK的Xho I位点上 ,构建了 BHV- 1通用转移载体p Sd TK- CMB,此载体可用来表达牛其它病毒的抗原基因 。展开更多
文摘Objective To investigate the effects of combination adenovirusmediated HSVtk/GCV system and antisense IGF1 gene therapy for rat glioma and analyze the mechanism.Methods Using the recombinant adenovirus vector,GCV killing effeciency after combined gene transfer of HSVtk and antisense IGF1 was observed in vitro.Rat glioma was treated with HSVtk/GCV and antisense IGF1 and the survival rate of rats was observed.Results C6 cells transfected with tk and antisense IGF1 gene were more sensitive to GCV than that transfected with tk gene alone.The survival of the combination gene therapy group was prolonged significantly and large amounts of CD+ 4,CD+ 8 lymphocytes were detected in the tumor tissues.Conclusion Antisense IGF1 gene may enhance the tumorkilling effects of HSVtk/GCV.
文摘substituted 6 aza 2’ deoxyuridines are inhibitors of herps simplex virius type 1 thymidine kinase (HSV 1 TK). In this paper, the semiempirical self consistent field PM3 calculations have been undertaken for two typical HSV 1 TK inhibitors: compound (I) and (II)(to see Fig.1). Their active sites have been discussed on the basis of studies of electronic structure and correlative analysis. The molecular docking between the two inhibitors and HSV 1 TK active center has also been carried out. It is found that the major binding forces between the two inhibitors and enzyme arise from hydrogen bonding interactions and lipophilic stacking interactions. The result may be used for rational molecular design of new and more potent HSV 1 TK inhibitors.
文摘将 I型牛疱疹病毒 (BHV- 1 ) LA株DNA H ind III A片段中的 Sal I- Sal I亚片段(含 TK基因 )克隆到载体质粒 p BluescriptSK中 ,再用 Bgl II和 Sac I切去 347bp,获得含 TK基因部分缺失的重组质粒 p Sd TK,然后用 H ind III和 Xba I切去其中的多克隆位点 ;将来源于 p CR3- Uni的 CMV启动子、多克隆位点和 BGH poly A信号插入 p Sd TK的Xho I位点上 ,构建了 BHV- 1通用转移载体p Sd TK- CMB,此载体可用来表达牛其它病毒的抗原基因 。
