人肝细胞生长因子基因表达质粒的构建及其活性研究

被引:11
作者
哈小琴
王新国
吴祖泽
机构
[1] 北京军事医学科学院放射医学研究所,北京军事医学科学院放射医学研究所,北京军事医学科学院放射医学研究所北京,北京,北京
关键词
人肝细胞生长因子基因; 质粒载体; 构建; 表达产物; 活性;
D O I
10.13459/j.cnki.cjap.2002.03.022
中图分类号
Q78 [基因工程(遗传工程)];
学科分类号
071007 ; 0836 ; 090102 ;
摘要
目的 :构建一种携带人肝细胞生长因子 (HGF)基因的表达质粒 (pUDKH) ,并对其体外活性进行研究 ,为其体内应用提供依据。方法 :从人胎盘cDNA文库用PCR方法克隆人HGF基因 ,并将其克隆至自行构建的真核表达载体 pUDK上 ,获得表达质粒 pUDKH。将pUDKH体外转染原代培养的骨骼肌细胞 ,分析其转染效率及表达上清中HGF、血管内皮生长因子 (VEGF)的表达水平 ,并采用MTT法分析不同剂量HGF表达产物对人脐静脉内皮细胞的作用。结果 :所克隆构建的携带人HGF基因的质粒 pUDKH可有效转染原代培养的骨骼肌细胞 (0 .0 5 7% ) ,并表达HGF(16~ 18ng/ 4× 10 5cells)和VEGF ,其表达产物对人脐静脉内皮细胞具有明显的增殖刺激活性 (P <0 .0 5 ) ,而且有剂量效应关系。结论 :初步证实本研究构建的质粒 pUDKH具有体内治疗缺血性疾病的应用潜力
引用
收藏
页码:71 / 75
页数:5
相关论文
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