雌、孕激素对子宫内膜癌细胞株HEC-1B ERRα表达调控的研究Regulation of ERRα by estrogen and progestogen in endometrial carcinoma cell line
丁岩;徐怀胜;王丽莉;辛卫娟;吴乾渝;
摘要(Abstract):
目的:探讨ERRα与雌、孕激素的相互作用及其在ERα阴性子宫内膜癌发病中的作用。方法:用MTT、实时定量PCR方法,检测不同浓度雌二醇(E2)、孕酮(P)作用于HEC-1B细胞后细胞增殖和ERRα mRNA的变化。结果:E2促进细胞增殖,E2(10-6~10-8mol/L)组OD值与对照组相比在48h时有统计学差异(P<0.05);E2明显上调ERRα表达,且10-7mol/L时上调最明显,Pearson相关分析ERRα mRNA表达含量与相应细胞生长变化显示:24、48h呈正相关(P<0.05),表明雌激素通过上调ERRα表达而诱导细胞增殖。P抑制细胞增殖,并具有浓度和时间依赖性,P(10-4~10-6mol/L)组OD值与对照组相比差异有统计学意义(P<0.05);P明显下调ERRα表达,且10-4mol/L时下调最明显,Pearson相关分析ERRαmRNA表达含量与相应浓度细胞生长变化在24h呈正相关(P<0.05),表明孕激素通过下调ERRα表达而抑制细胞增殖。结论:ERRα在ERα阴性子宫内膜癌的发生中发挥一定作用。
关键词(KeyWords): 雌激素受体相关受体;子宫内膜肿瘤;雌激素类;孕激素类
基金项目(Foundation):
作者(Authors): 丁岩;徐怀胜;王丽莉;辛卫娟;吴乾渝;
DOI: 10.13283/j.cnki.xdfckjz.2010.03.027
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