目的:观察肝细胞生长因子(HGF)对体外培养的人肝细胞癌细胞的生长效应.方法:将处于指数生长期的SMMC-7721细胞经过(HGF处理组)或不经(对照组)HGF处理培养1～4d,采用四甲基偶氮唑盐(MTT)法检测细胞数,并进行细胞周期分析.结果:HGF对SMMC-7721细胞增殖具有剂量依赖性抑制作用.在实验浓度内,使用最高浓度的HGF(rhHGF为20μg*L-1、cHGF为100mg*L-1)对细胞增殖抑制作用最强.使用不同浓度(5、10、20μg*L-1)rhHGF处理3d的培养细胞均有一半以上停留在G0/G1期.结论:HGF对SMMC-7721人肝细胞癌细胞的体外生长有强烈的抑制作用,这与细胞生长阻滞在G0/G1期有关.

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