摘要
用DNA直接克隆连接的方法,构建人Smad7腺病毒重组质粒,再用293细胞包装。重组腺病毒经扩增、纯化后,感染体外培养的瘢痕疙瘩成纤维细胞,用RT-PCR方法检测细胞中人Smad7mRNA的转录。经酶切和PCR鉴定证实了人Smad7重组腺病毒质粒构建成功,RT-PCR证实瘢痕疙瘩细胞中有腺病毒载体介导的Smad7mRNA的过度表达。结果证实构建的人Smad7腺病毒表达载体可在体外细胞中表达,并可进一步应用于瘢痕疙瘩基因治疗方面的研究。
The recombinant human Smad7 adenoviral vector was constructed by direct DNA cloning protocol and then transfected into 293 cells for virus packaging. After amplification and purification, the recombinant adenovirus was used to infect the keloid fibroblasts. The Smad7 mRNA transcription of the infected cells was detected by RT-PCR. The recombinant Adeno-Smad7 was correctly constructed and confirmed by both restriction analysis and PCR analysis. RT-PCR showed the over expression of adenovirus mediated Smad7 mRNA in keloid cells. These results demonstrated that the recombinant Smad7 adenoviral vector can be expressed in cultured cells in vitro, and it may provide a new therapeutic strategy for keloid gene therapy.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2005年第4期769-772,共4页
Journal of Biomedical Engineering
基金
上海市科委重大项目资助(00JC14032)
作者简介
通讯作者。E—mail：wangdanru@hotmail．com
