山东大学学报 (医学版) ›› 2022, Vol. 60 ›› Issue (9): 53-58.doi: 10.6040/j.issn.1671-7554.0.2021.1471
赵舸1,邹存华1,宋冬冬2,赵淑萍1
ZHAO Ge1, ZOU Cunhua1, SONG Dongdong2, ZHAO Shuping1
摘要: 目的 探讨丹参酮IIA对子宫内膜癌细胞增殖与凋亡的影响。 方法 将丹参酮IIA作用后的子宫内膜癌细胞设置为对照组、低浓度组(1 μg/mL)、中浓度组(2.5 μg/mL)及高浓度组(5 μg/mL);同时将酪蛋白激酶2(CK2)特异性磷酸化抑制剂(TBB)和丹参酮IIA共同处理后的细胞设置为对照组、TBB组(60 μmol)、药物组(5 μg/mL)及药物(5 μg/mL)+TBB组(60 μmol)。结晶紫染色法检测丹参酮IIA对子宫内膜癌细胞增殖的影响;Western blotting检测各组子宫内膜癌细胞中P53、活化胱天蛋白酶-3(Cleaved caspase-3)、B淋巴细胞瘤-2基因(Bcl-2)、CK2α、乳腺癌缺失因子1(DBC1)、沉默信息调节因子1(SIRT1)、磷酸化乳腺癌缺失因子1(p-DBC1)的表达;同时加入TBB,检测子宫内膜癌细胞中CK2α、DBC1、p-DBC1的表达。 结果 结晶紫染色结果显示,对照组和高浓度组各时间点(24、48、72 h)细胞增殖率分别为(0.87±0.05)%、(0.61±0.04)%、(0.30±0.04)%、(0.09±0.04)%,差异有统计学意义(F=217.976,P<0.001)。Western blotting结果显示,在丹参酮IIA作用下,P53(F=244.261)及Cleaved caspase-3(F=290.842)的表达水平呈浓度依赖性升高,Bcl-2(F=198.170)的表达水平呈浓度依赖性降低,差异均有统计学意义(P均<0.001);p-DBC1/DBC1的表达水平呈浓度依赖性降低,差异有统计学意义(F=187.092, P<0.001),而CK2α、SIRT1的表达差异均无统计学意义(P均>0.05);单独应用TBB(F=7.847)、丹参酮IIA(F=827.715)及联合应用(F=22.174),p-DBC1/DBC1表达均受到抑制,与对照组比较,差异均有统计学意义(P=0.023,P<0.001,P=0.002);CK2α表达差异无统计学意义(P>0.05)。 结论 丹参酮IIA可以明显抑制子宫内膜癌细胞增殖并诱导凋亡,其机制可能与CK2/DBC1/SIRT1/P53信号通路有关。
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