Genistein对唾液腺腺样囊性癌细胞株SACC-83的体外抗增殖作用

目的:研究酪氨酸蛋白激酶抑制剂Genistein(4',5,7-三羟基异黄酮)对人唾液腺腺样囊性癌细胞株SACC-83的体外抗增殖作用及其对细胞增殖周期的影响。方法:用Genistein处理体外培养的SACC-83细胞,采用MTT检测法计算细胞存活率,显微照相记录细胞生长状态及形态学的改变,流式细胞仪测定细胞周期,AnnexinⅤ/PI法定量检测细胞凋亡,采用SPSS11.5统计软件对结果进行统计方差分析。结果:Genistein对SACC-83细胞有一定的抗增殖作用,且当其作用到一定时间、达到一定的浓度后,该作用与浓度及时间呈依赖关系;细胞形态发生改变,体积缩小,悬浮细胞逐渐增多;SACC-83细胞经220μmol/LGenistein作用3d,其生长受到明显抑制,阻断细胞生长于G2/M期,并明显诱导细胞凋亡(P<0.01)。结论:Genistein可以显著抑制人唾液腺腺样囊性癌细胞株SACC-83的生长,阻断细胞周期于G2/M期,并诱导细胞凋亡;提示酪氨酸蛋白激酶在唾液腺腺样囊性癌的发生、发展中起着重要作用。

Anti-proliferation effect of genistein on salivary adenoid cystic carcinoma cell line SACC-83 in vitro

PURPOSE: To investigate the anti-proliferation effect of tyrosine protein kinase inhibitor, genistein (4'-5,7-trihydroxyisoflavone), on human salivary adenoid cystic carcinoma cell line SACC-83 in vitro, and its effect on cell cycle. METHODS: SACC-83 cells cultured in vitro were treated with genistein,cell survival rate was calculated with MTT assay, phase contrast microscope was used to observe the status of cell growth and the morphological changes in each group, and cell cycle was detected with flow cytometry. Apoptosis was detected with Annexin V/PI staining. The results were statistically analyzed by SPSS11.5 software. RESULTS: When treated with genistein of certain concentration for certain time, SACC-83 cell growths were significantly inhibited. With the increase of concentration of genistein and elongation of acting time, the inhibitory effects increased. Cells treated with genistein showed changes in morphology, cells' volume was decreased ,and suspended cells increased. Treated with 220 micromol/L genistein for 72 hours, SACC-83 cell growths were significantly inhibited, cell cycle was arrested in G2/M phase, and cell apoptosis was induced(P<0.01). CONCLUSION: Genistein inhibits growth of human salivary adenoid cystic carcinoma cell line SACC-83, arrests cell cycle in G2/M phase, and induces cell apoptosis; these suggest that tyrosine protein kinase has important effect on the neoplasia and development of salivary adenoid cystic carcinoma.