日本Kyoto Institute of Technology-Faculty of Textile Science的研究人员利用专门设计的病毒载体,将萤火虫虫荧光素酶基因导入蚕中。他们还成功地导入了外源基因,并成功地获得了后代。 以Hajime Mori为首的研究人员将虫荧光素酶基因...日本Kyoto Institute of Technology-Faculty of Textile Science的研究人员利用专门设计的病毒载体,将萤火虫虫荧光素酶基因导入蚕中。他们还成功地导入了外源基因,并成功地获得了后代。 以Hajime Mori为首的研究人员将虫荧光素酶基因导入苜蓿银纹夜蛾核多角体病毒(AcNPV),置于Drosophila热激蛋白基因启动子调控之下。用重组病毒接种蚕的第5次蜕皮期的幼虫时。展开更多
In order to quantitate the bovine immunodeficiency virus line （BIVL） was established by transfecting baby hamster kidney （BIV） cells infection in vitro, a BIV indicator cell with reporter plasmids containing the f...In order to quantitate the bovine immunodeficiency virus line （BIVL） was established by transfecting baby hamster kidney （BIV） cells infection in vitro, a BIV indicator cell with reporter plasmids containing the firefly luciferase gene driven by a BIV long terminal repeat promoter. The BIV activates promoter activity of the LTR to express luciferase upon infection. BIV infection could therefore by quantified by detection of luciferase activity. Compared to standard assays used to detect BIV infection, the BIVL-based assay is 10 times more sensitive than the the CPE-based assay, and has similar sensitivity with the viral capsid protein Western blot assay BIV indicator cell line could detect BIV infection specifically. Luciferase activity of BIV infected BIVL cells showed a time dependent manner, and 60 h post infection is the optimal time to detect BIV infection. Luciferase activity of BIVL cells correlates with the BIV capsid protein expression. Moreover, a linear relationship was found between MOI and the activated intensity of luciferase expression. In brief, the BIV indicator cell line is an easy, robust and quantitive method for monitoring BIV infection.展开更多
文摘日本Kyoto Institute of Technology-Faculty of Textile Science的研究人员利用专门设计的病毒载体,将萤火虫虫荧光素酶基因导入蚕中。他们还成功地导入了外源基因,并成功地获得了后代。 以Hajime Mori为首的研究人员将虫荧光素酶基因导入苜蓿银纹夜蛾核多角体病毒(AcNPV),置于Drosophila热激蛋白基因启动子调控之下。用重组病毒接种蚕的第5次蜕皮期的幼虫时。
基金The General Foundation of Tianjin Science Committee for Applied Basic Research (08JCZDJC21000)Chinese Ministry of Education (30770081)
文摘In order to quantitate the bovine immunodeficiency virus line （BIVL） was established by transfecting baby hamster kidney （BIV） cells infection in vitro, a BIV indicator cell with reporter plasmids containing the firefly luciferase gene driven by a BIV long terminal repeat promoter. The BIV activates promoter activity of the LTR to express luciferase upon infection. BIV infection could therefore by quantified by detection of luciferase activity. Compared to standard assays used to detect BIV infection, the BIVL-based assay is 10 times more sensitive than the the CPE-based assay, and has similar sensitivity with the viral capsid protein Western blot assay BIV indicator cell line could detect BIV infection specifically. Luciferase activity of BIV infected BIVL cells showed a time dependent manner, and 60 h post infection is the optimal time to detect BIV infection. Luciferase activity of BIVL cells correlates with the BIV capsid protein expression. Moreover, a linear relationship was found between MOI and the activated intensity of luciferase expression. In brief, the BIV indicator cell line is an easy, robust and quantitive method for monitoring BIV infection.
