首页> 中文期刊> 《中国病理生理杂志》 >千金藤素通过调节miR-150和miR-182促进A549细胞凋亡

千金藤素通过调节miR-150和miR-182促进A549细胞凋亡

         

摘要

AIM:To investigate the effect of cepharanthine on the growth of human lung carcinoma A549 cells and the underlying mechanism. METHODS:After A549 cells were treated with cepharanthine,the growth inhibitory rate was detected by MTT assay. The cell morphological changes were observed under light microscope. The apoptosis of the A549 cells was analyzed by flow cytometry. The expression of microRNA (miR)-150, miR-182, p53 mRNA and FOXO1 mRNA were detected by real-time PCR. The downstream target genes were predicted by software,and the expression of p53 and FOXO1 was determined by Western blot. RESULTS:After cepharanthine treatment,the growth of A549 cells was in-hibited,the apoptosis rate was significantly increased,and the expression levels of miR-150 and miR-182 were significantly decreased. With cepharanthine treatment at 10 μmol/L,the expression levels of p53 and FOXO1 were elevated;however, with cepharanthine at 30 μmol/L,the expression levels of p53 and FOXO1 were decreased. After transfection with miR-150,the expression of p53 was significantly decreased, while the expression of FOXO1 was significantly decreased after transfection with miR-182. CONCLUSION:Cepharanthine inhibits the growth of A549 cells and promotes the apoptosis of A549 cells by inhibiting the expression of miR-150 and miR-182. miR-150 and miR-182 may down-regulate the expression of p53 and FOXO1,respectively.%目的:探讨千金藤素对人肺癌A549细胞生长的影响及可能机制.方法:千金藤素处理A549细胞后,采用MTT法检测细胞生长抑制率;倒置显微镜观察细胞形态变化;流式细胞术检测细胞凋亡;real-time PCR检测微小RNA(miR)-150、miR-182、p53 mRNA和FOXO1 mRNA的表达变化;通过软件预测miR-150和miR-182的下游靶基因;采用Western blot法分析细胞中p53和FOXO1蛋白表达的变化.结果:在千金藤素作用下,A549细胞生长受到抑制,凋亡率明显增加;千金藤素作用后,细胞内miR-150和miR-182的表达水平显著下降;在10μmol/L的千金藤素作用后,细胞内p53和FOXO1的表达水平升高,而在30μmol/L时,细胞内p53和FOXO1的表达水平降低;在细胞内转染miR-150后,p53表达明显减少,而转染miR-182后,FOXO1表达显著降低.结论:千金藤素能够抑制A549细胞生长,促进A549细胞凋亡,可能是通过抑制miR-150和miR-182表达发挥作用;而miR-150和miR-182可能分别通过下调p53和FOXO1的表达发挥作用.

著录项

  • 来源
    《中国病理生理杂志》 |2017年第11期|1987-1992|共6页
  • 作者单位

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

    滨州医学院山东省高校肿瘤分子生物学重点实验室,生物化学与分子生物学教研室,山东 烟台264003;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 病理生理学;中药实验药理;
  • 关键词

    千金藤素; 微小RNA-150; 微小RNA-182; p53; FOXO1;

相似文献

  • 中文文献
  • 外文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号