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蛋白激酶CK2抑制剂四溴苯三唑可促进卵巢癌CAOV3细胞凋亡

, PP. 1478-1481

Keywords: CK&alpha,四溴苯三唑,卵巢肿瘤,CAOV细胞,细胞凋亡

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Abstract:

目的观察蛋白激酶CK2抑制剂四溴苯三唑(4,5,6,7-tetrabromobenzotriazole,TBB)对卵巢癌CAOV3细胞增殖、凋亡及细胞凋亡调控因子Bcl-2、Bax表达的影响,进一步探讨TBB促进卵巢癌CAOV3细胞凋亡的作用机制。方法体外培养CAOV3细胞,将其分为对照组、DMSO组和TBB组(终浓度为12.5、25、50、75μmol/L)。MTT测定各组细胞增殖情况;流式细胞仪检测各组卵巢癌CAOV3细胞凋亡;Westernblot检测各组CAOV3细胞CK2α及凋亡相关因子Bcl-2、Bax的表达。结果与对照组[(92.00±4.36)%]比较,TTB各浓度组细胞增殖率分别为(73.00±2.76)%、(67.00±3.51)%、(52.00±2.83)%和(40.00±1.75)%,随着TBB浓度的增加,其对CAOV3细胞增殖的抑制呈剂量依赖性增强(P<0.01);细胞凋亡比例也呈剂量依赖性增加;与对照组比较,CK2α的表达逐渐降低,Bcl-2蛋白表达减少,Bax蛋白表达增加(P<0.01)。结论TBB可通过抑制抗凋亡蛋白Bcl-2的表达和促进促凋亡蛋白Bax的表达而促进卵巢癌CAOV3细胞凋亡。

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