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罗哌卡因通过调控miR-142-3p/MARCH7基因表达影响乳腺癌细胞的增殖和凋亡

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摘要 目的探讨罗哌卡因对乳腺癌细胞增殖和凋亡的影响及其作用机制。方法 MCF-7细胞分为对照组、不同浓度罗哌卡因处理组、miR-con组、miR-142-3p组、si-con组、si-MARCH7组、Ro+anti-miR-con组、Ro+anti-miR-142-3p组、Ro+anti-miR-142-3p+si-con组和Ro+anti-miR-142-3p+si-MARCH7组。四甲基偶氮唑盐比色法(MTT)检测细胞存活率;蛋白质印迹(Western Blot)检测裂解半胱氨酸天冬氨酸蛋白酶-3 (Cleaved caspase-3)、细胞周期蛋白D1 (Cyclin D1)及膜相关RING-CH 7 (MARCH7)蛋白表达;流式细胞术检测细胞凋亡;实时荧光定量PCR (RT-q PCR)检测miR-142-3p和MARCH7mRNA的表达水平;荧光素酶报告基因实验检测miR-142-3p和MARCH7的靶向关系。结果罗哌卡因处理的乳腺癌细胞MCF-7中,细胞存活率降低,细胞凋亡率升高,Cleaved-caspase-3、miR-142-3p表达水平升高,MARCH7表达水平降低,差异均有统计学意义(均P<0.05)。高表达miR-142-3p或低表达MARCH7后,Cyclin D1表达水平降低,Cleaved-caspase-3表达水平升高,MCF-7细胞凋亡率不断提升,且存活率不断降低,差异均有统计学意义(均P<0.05)。miR-142-3p靶向调控MARCH7。低表达miR-142-3p逆转了罗哌卡因对乳腺癌细胞MCF-7增殖抑制和凋亡促进作用。低表达MARCH7部分逆转了低表达miR-142-3p对罗哌卡因处理的乳腺癌细胞MCF-7增殖和凋亡的影响。结论罗哌卡因可抑制乳腺癌细胞增殖,促进细胞凋亡,其机制可能与miR-142-3p和MARCH7有关。
出处 《中国妇幼保健》 CAS 2020年第23期4588-4593,共6页 Maternal and Child Health Care of China
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