【摘要】 目的探讨活细胞计数试剂盒(CCK-8)在检测5-氮杂-2’-脱氧胞苷(5-Aza-2’-dc)对慢性粒细胞白血病细胞的增殖抑制作用中的应用。方法采用CCK-8检测不同浓度5-Aza-2’-dc对K562细胞的增殖抑制作用,并检测其半数抑制浓度对K562细胞的细胞周期和凋亡的影响。结果 5-Aza-2’-dc的半数抑制浓度为15.55nmol/L,采用该浓度处理K562细胞后,G2期发生阻滞,增殖抑制,并出现凋亡峰。结论不同浓度的5-Aza-2’-dc对K562细胞增殖的抑制作用不同,且呈浓度依赖关系。CCK-8检测法可运用于甲基化转移酶抑制剂对人慢性粒细胞白血病细胞增殖的影响。更多还原

【Abstract】 Objective To study the application of Cell Counting Kit-8( CCK-8) in detecting the growth inhibiting effect of 5-Aza-2’-deoxycytidine on chronic myeloid leukemia cell. Methods The proliferation of K562 cells was detected by CCK-8 with different concentrations of 5-Aza-2’-deoxycytidine and the cell cycle and apoptosis of K562 cells were detected after K562 treated by 50% inhibitory concentration of 5-Aza-2’-deoxycytidine. Results The 50% inhibitory concentration of 5-Aza-2’-deoxycytidine was 15. 55nmol /L,after treated with this concentration,K562 cells showed that G2phase arrest occurred,proliferation inhibited and apoptosis peaks appeared. Conclusion Inhibition of proliferation of K562 cells with different concentrations of 5-Aza-2’-deoxycytidine varied in a dose-dependent relationship,and 5-Aza-2’-deoxycytidine could promote apoptosis of K562 cells. CCK-8 can be used in detecting the effect of 5-Aza-2’-deoxycytidine on chronic myeloid leukemia cells.更多还原