CircFOXK2通过miR-588/FBXW5轴调节非小细胞肺癌的增殖、迁移和侵袭

被引:0
|
作者
邓科兰
刘桂霞
厉银平
谢志斌
机构
[1] 湖北省孝感市中心医院呼吸与危重症医学科
关键词
CircFOXK2; miR-588; FBXW5; 非小细胞肺癌; 增殖; 迁移; 侵袭;
D O I
暂无
中图分类号
R734.2 [肺肿瘤];
学科分类号
摘要
目的 探讨CircFOXK2通过miR-588/FBXW5轴对非小细胞肺癌(NSCLC)增殖、迁移和侵袭的影响。方法 实时荧光定量PCR(qRT-PCR)、Western blot分别检测NSCLC细胞A549、正常人支气管上皮细胞NHBE中CircFOXK2、miR-588、FBXW5表达;将si-NC、si-CircFOXK2、si-CircFOXK2+inhibitor NC、si-CircFOXK2+miR-588 inhibitor分别转染至A549细胞记为为si-NC组、si-CircFOXK2组、si-CircFOXK2+inhibitor NC组、si-CircFOXK2+miR-588 inhibitor组,未做任何处理的A549细胞记为NC组。双荧光素酶报告基因实验验证CircFOXK2、miR-588、FBXW5关系;Western blot检测A549细胞FBXW5、上皮钙粘附素(E-cadherin)、神经型钙粘附蛋白(N-cadherin)、波形蛋白(Vimentin)蛋白水平;CCK-8法检测A549细胞增殖情况;流式细胞术检测A549细胞凋亡;Transwell检测A549细胞侵袭、迁移数量。结果 与miR-NC+WT-FOXK2组比较,miR-588 mimic+WT-FOXK2组A549细胞的荧光素酶活性显著降低(P<0.05),而miR-588 mimic+MUT-FOXK2组A549细胞的荧光素酶活性较miR-NC+MUT-FOXK2组无显著改变(P>0.05);与miR-NC+WT-FBXW5组比较,miR-588 mimic+WT-FBXW5组A549细胞的荧光素酶活性显著下降(P<0.05),miR-588 mimic+MUT-FBXW5组较miR-NC+MUT-FBXW5组A549细胞的荧光素酶活性无显著差异(P>0.05)。与NHBE细胞相比,A549细胞中CircFOXK2、FBXW5水平显著上调(P<0.05),miR-588表达量显著下调(P<0.05)。与NC组、si-NC组相比,si-CircFOXK2组A549细胞CircFOXK2表达量、FBXW5、N-cadherin、Vimentin蛋白水平、OD450值、迁移、侵袭细胞数量显著降低(P<0.05),A549细胞miR-588表达量、E-cadherin蛋白水平、细胞凋亡率显著升高(P<0.05);与si-CircFOXK2组、si-CircFOXK2+inhibitor NC组相比较,si-CircFOXK2+miR-588 inhibitor组FBXW5水平、OD450值、A549细胞迁移、侵袭细胞数量以及N-cadherin、Vimentin蛋白水平显著上升(P<0.05),miR-588表达量、A549细胞凋亡率、E-cadherin蛋白水平显著下降(P<0.05)。而miR-588下调减弱了沉默CircFOXK2抑制A549细胞增殖、迁移和侵袭的有利影响;CircFOXK2靶向调节miR-588/FBXW5轴。结论 沉默CircFOXK2可能通过上调miR-588来抑制FBXW5表达,进而对NSCLC细胞增殖、迁移和侵袭产生影响。
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收藏
页码:977 / 982
页数:6
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