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CONSTRUCTION OF RECOMBINANT RETROVIRAL VECTOR CARRYING RAT IGF-1 GENE
Author(s): 
Pages: 187-189
Year: Issue:  2
Journal: ACTA ANATOMICA SINICA

Keyword:  胰岛素样生长因子-1逆转录病毒载体病毒滴度基因重组质粒;
Abstract: 目的构建胰岛素样生长因子-1(IGF-1)基因重组逆转录病毒,为将IGF-1基因应用于神经系统疾病的治疗打下基础.方法质粒pcDNA3.1-IGF-1经EcoR Ⅰ和Xho Ⅰ双酶切后亚克隆至逆转录病毒载体pLXSN,构建成重组逆转录病毒表达载体pLXSN-IGF-1,采用酶切及测序对重组体进行鉴定.而后脂质体转染pLXSN-IGF-1至包装细胞pA317,检测培养上清病毒滴度.结果重组真核基因表达载体pLXSN-IGF-1经EcoR Ⅰ和Xho Ⅰ双酶切后,得到了400 bp和6.0 kb两条带;以重组体为模板进行PCR检测,400 bp的目的基因片段呈阳性;重组体测序结果与预期结果完全一致;建立了细胞系PA317-IGF-1,其培养上清平均病毒滴度为6.5×105 CFU/ml.结论成功构建了IGF-1基因重组逆转录病毒.
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