RRM2对人胃癌细胞MKN-45增殖、侵袭及顺铂耐药作用的研究

被引:8
作者
侯志斌 [1 ]
李菊英 [2 ]
苟笑丹 [3 ]
机构
[1] 西宁市第二人民医院病理科
[2] 青海大学病理学教研室
[3] 青海大学附属医院病理科
关键词
胃癌; 核糖核苷酸还原酶亚单位M2; 小干扰RNA;
D O I
暂无
中图分类号
R735.2 [胃肿瘤];
学科分类号
100112 [医学生物化学与分子生物学];
摘要
目的研究核糖核苷酸还原酶亚单位M2(RRM2)基因在人胃癌MKN-45细胞增殖、侵袭、耐药中的作用,并初步探讨其可能的机制。方法设计两组靶向RRM2基因的小干扰RNA,分别转染胃癌细胞MKN-45以抑制RRM2基因的表达,并同时设立阴性对照组(NC组)及未转染组。转染后琼脂糖电泳检测各组细胞RRM2基因表达,Western-blot检测各组细胞RRM2蛋白表达。CCK-8法对各组细胞增殖能力进行检测。不同浓度顺铂处理各组细胞进行耐药能力检测。采用Transwell小室对各组细胞侵袭能力进行检测。结果琼脂糖电泳及Western-blot检测显示转染RRM2-siRNA后,RRM2在基因水平及蛋白水平表达均明显下调。转染RRM2-siRNA的人胃癌MKN-45细胞的增殖能力、侵袭能力均显著低于未转染组及NC组(P<0.05),转染组顺铂IC50分别为0.081μg/m L及0.079μg/m L,明显低于未转染组(0.14μg/m L)及NC组(0.136μg/m L)(P<0.01)。结论 RRM2基因具有促进胃癌细胞增殖、侵袭的作用,并与顺铂耐药相关。
引用
收藏
页码:2684 / 2688
页数:5
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