【摘要】 目的 :观察重组人肝细胞生长因子 (rhHGF)和天然小牛肝细胞生长因子 (cHGF)对SMMC - 772 1人肝细胞癌细胞株的生长效应。方法 :传代后处于指数生长期的SMMC - 772 1细胞经过 (HGF处理组 )或不经 (对照组 )rhHGF/cHGF处理培养 1 - 4d ,采用四甲基偶氮唑盐 (MTT)法检测细胞数。并通过流式细胞仪对rhHGF处理细胞作细胞周期分析。结果 :rhHGF(5 - 2 0 μg/L)和cHGF(2 5 - 1 0 0mg/L)对SMMC - 772 1细胞增殖具有类似的剂量依赖性抑制作用。在实验浓度内 ,使用最高浓度时 (rhHGF为 2 0 μg/L、cHGF为 1 0 0mg/L)对细胞增殖抑制作用最强。使用不同浓度 (5μg/L、1 0 μg/L、2 0 μg/L)rhHGF处理 3d的培养细胞均有一半以上停留在G0 /G1 期。结论 :rhHGF和cHGF对SMMC - 772 1人肝细胞癌细胞的体外生长都有强烈的抑制效应。这是由于受HGF的作用细胞生长易于终止在G0 /G1期更多还原

【Abstract】 AIM: To examine the effects of recombinant human hepatocyte growth factor(rhHGF) and native calf HGF(cHGF) on SMMC-7721 human hepatocellular carcinoma(HCC) cell line. METHODS: Human HCC cell line culture, photometric assay, and flow cytometric assay were used in this study . RESULTS: A similar type of dose-dependent cell growth inhibition effect on SMMC-7721 human HCC cells by rhHGF(5-20 μg/L) as well as by cHGF(25-100 mg/L) had been found, with the maximal effect at the highest concentration used. Approximately over 50% of the cells treated with rhHGF(5 μg/L, 10 μg/L, 20 μg/L) accumulated in the quiescent G 0/G 1 phase of the cell cycle over incubation periods for 3 d. CONCLUSION: The growth of SMMC-7721 human HCC cells was strongly inhibited by both rhHGF and cHGF. This might be because the cells exposed to HGF became arrested in the G 0/G 1 phase.更多还原