山东大学学报 (医学版) ›› 2021, Vol. 59 ›› Issue (10): 25-31.doi: 10.6040/j.issn.1671-7554.0.2021.0230
王正阳1,夏艳2,师凯旋3,陶琨4,王小杰1,2
WANG Zhengyang1, XIA Yan2, SHI Kaixuan3, TAO Kun4, WANG Xiaojie1,2
摘要: 目的 探究MEK抑制剂—曲美替尼在卵巢癌中对PAX8表达的作用。 方法 应用基因富集分析(GSEA)检测卵巢癌细胞经曲美替尼处理后相关基因表达的差异,蛋白免疫印迹法、免疫荧光染色和实时荧光定量PCR检测曲美替尼对卵巢癌细胞PAX8蛋白表达和PAX8 mRNA的影响;结晶紫染色法检测曲美替尼对卵巢癌细胞增殖的影响;蛋白免疫印迹法、实时荧光定量PCR和CCK8实验检测干扰KRAS突变卵巢癌细胞ELK1基因后PAX8表达及细胞增殖的变化。 结果 GSEA结果显示,曲美替尼使卵巢癌细胞的KRAS基因和ELK1基因表达下调(P<0.01);实时荧光定量PCR结果显示,曲美替尼能抑制KRAS突变卵巢癌细胞中PAX8的转录(P<0.001);结晶紫染色法结果显示,曲美替尼处理后的KRAS突变卵巢癌细胞的增殖能力降低;蛋白免疫印迹法结果显示,曲美替尼能抑制KRAS突变卵巢癌细胞PAX8基因和ELK1基因表达(P<0.001),干扰KRAS突变卵巢癌细胞ELK1基因能抑制PAX8基因的表达(P<0.001);CCK8结果显示,干扰ELK1基因表达可抑制KRAS突变卵巢癌细胞增殖(P<0.05)。 结论 曲美替尼在KRAS突变的卵巢癌中通过ELK1抑制PAX8表达及细胞增殖。
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