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肝细胞生长因子诱导华通胶干细胞向肝细胞样细胞分化的体外实验

柰超 于聪慧 余昌中 石志远

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肝细胞生长因子诱导华通胶干细胞向肝细胞样细胞分化的体外实验

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  • 中图分类号: R329

In vitro study of hepatocyte growth factor in inducing Wharton′s jelly-derived mesenchymal stem cells into hepatocyte-like cells

  • 摘要: 目的观察外源性肝细胞生长因子对华通胶干细胞向肝细胞样细胞分化的诱导作用。方法取人脐带华通胶干细胞,进行细胞表型分析和端粒酶活性评价;通过检测华通胶干细胞中甲胎蛋白(AFP)和白蛋白(Alb)两种基因的相对含量,对两种浓度肝细胞生长因子诱导能力进行初步评估。分组:A组:华通胶干细胞+肝细胞生长因子(HGF)(20 ng/ml);B组:华通胶干细胞+HGF(40 ng/ml);C组:HL-7702人肝细胞株;D组:华通胶干细胞。结果华通胶干细胞表达间充质细胞表型:CD73、CD90、CD105与HLA-ABC阳性;不表达造血干细胞表型:CD45、HLA-DR阴性;华通胶干细胞端粒酶表达呈阳性。AFP基因相对含量在第7 d表达增高,仍未达到阳性对照组水平(P<0.05);高剂量组含量高于低剂量组(P<0.05);在21、42 d两组相对含量与阳性对照组差异无统计学意义;Alb基因相对含量在第7 d表达增高,高剂量与低剂量组差异无统计学意义,低于阳性对照组(P<0.05);在21 d两组相对含量与阳性对照组差异无统计学意义;在42 d,两组相对含量高于阳性对照组(P<0...

     

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  • 出版日期:  2012-02-20
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