自杀基因修饰内皮祖细胞对肝细胞癌体外作用的效应

Journal of Southeast University (Medical Science Edition)(2014)

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Abstract
目的:研究自杀基因胞嘧啶脱氨酶(CD)基因转染的小鼠骨髓源性内皮祖细胞(EPCs)联合酶前体药物5-氟胞嘧啶(5-FC)对小鼠肝癌细胞株H22的体外抗增殖作用。方法:分离普通小鼠骨髓源性EPCs,培养鉴定,Polybrene技术转染含CD基因的慢病毒载体重组体plenti6.3-EGFP-CD至EPCs,Western blotting检测目的蛋白的表达。利用Transwell小室共培养体系,用转染CD基因的EPCs处理H22细胞。 CCK-8法检测H22细胞增殖变化,流式细胞仪检测细胞凋亡水平。结果:成功转染CD基因至EPCs;CCK-8法检测显示随着5-FC浓度增加,细胞增殖逐渐下降,5-FC浓度达100 mg· L-1时,肿瘤细胞增殖抑制率达到(54.74±5.38)%(P<0.05),细胞平均凋亡率为(48.71±4.62)%(P<0.05)。结论:CD基因修饰的EPCs 联合5-FC体外可明显抑制肝癌H22细胞增殖,诱导肿瘤细胞凋亡。
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Key words
endothelial progenitor cells,cytosine deaminase,hepatocellular carcinoma,lentiviral vectors,apoptosis
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