腺病毒介导重组hKGF基因转染HaCat细胞及其表达

Recombinant Adenovirus Infected HaCat Cells Express Human Kerotinocyte Growth Factor (hKGF)

将PCR扩增得到的人角质细胞生长因子(hKGF)基因片段插入穿梭载体pAdTrack-CMV,产生重组质粒pAdTrack-CMV-hKGF,经PmeI线性化后,通过电转法导入含腺病毒骨架质粒pAdEasy-1的大肠杆菌BJ5183进行同源重组,得到重组腺病毒质粒pAdEasy-hKGF。采用Lipofectamine2000将pAdEasy-hKGF转染到HEK-293细胞,在HEK-293细胞中包装并扩增出大量的腺病毒,经PCR鉴定含有hKGF基因。获得的重组hKGF腺病毒感染颗粒可高效感染HaCat细胞。Western blot结果显示,重组腺病毒感染的HaCat细胞可分泌表达hKGF蛋白。

Human kerotinocyte growth factor （hKGF） gene amplified by PCR was inserted into the shuttle vector pAdTrack-CMV to get the recombinant plasmid pAdTrack-CMV-hKGF, which was linearized with Pme I and transferred into Escherichia coli BJ5183 containing the adenoviral bone plasmid pAdEasy-1 to obtain the recombinant adenoviral plasmid pAdEasy-hKGF. The recombinant adenoviral plasmid was then transfected into HEK-293 cell lines via Lipofectamine 2000 to package and amplify the recombinant adenovirus containing hKGF gene detected by PCR. The recombinant adenovirus produced could effectively infect HaCat cells. The result of Western blotting showed that HaCat cells infected with the recombinant adenovirus expressed and secreted hKGF protein.