姜黄素对Hela细胞周期各时相的影响

目的：探讨姜黄素对Hela细胞(人宫颈癌细胞)增殖周期各时相的影响，为宫颈癌化疗寻求有 效药物。 方法：应用MTT比色法和流式细胞术测定不同浓度姜黄素（0、10、20和40 mg·L^-1） 对Hela细胞增殖的抑制率和细胞周期各时相的变化，并应用电子显微镜观察Hela细胞的亚细胞改变。 结果：0、10、20和40 mg·L^-1姜黄素对Hela细胞增殖的抑制率分别为3.0%、21.4%、32.8%和49.2%，且呈剂量依赖性；流式细胞术显示，G₁期细胞增多，S期细胞减少，G ₂／M期细胞相对增多；细胞结构显示，细胞空化、染色质凝集、凋亡小体增多。 结论：姜黄素能够抑制HeLa细胞增殖，阻止G₁期细胞向S期转化的进程，促进Hela细胞凋亡。

Effects of curcuma on different phases of Hela cell cycle

Objective To discuss the effects of curcuma on different phases of the Hela cell proliferation in order to find the effective medicine in cervix cancer treatment.Methods MTT colorimetry and flow cytometry were used to measure the inhibitory rate of Hela cell proliferation and the changes of cell cycle, and transmission electron microscope(TEM) was used to observe the changes of the Hela subcells treated with the different concentrations of curcuma(0,10,20 and(40 mg·L~(-1))).Results Curcuma(0,10,20 and 40 mg·L~(-1))had obvious inhibitory effects on the Hela cell proliferation in a dose-dependant manner,the inhibitory rates were 3.0%,21.4%,32.8% and 49.2%,respectively.Furthermore,flow cytometry showed that the number of cells in G_1 phase increased and the number of cells in S phase decreased,the number of cells in G_2/M phases relatively increased.The changes of subcell structure could be seen,such as cavernous cells,cytoplasm agglutination,increasing apoptosis.(Conclusion Curcuma) can inhabit the Hela cell proliferation, prevent the cells in G_1 phase from entering into(S phase),and promote Hela cell apoptosis.