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中国临床药理学与治疗学 ›› 2019, Vol. 24 ›› Issue (4): 383-390.doi: 10.12092/j.issn.1009-2501.2019.04.004

• 基础研究 • 上一篇    下一篇

microRNA-1304通过靶向血红素氧合酶-1对人肺癌细胞的抑制作用

朱林佳1,原少斐1,上官宗校1,慈 晓1,赵仁国1,李玉苹2   

  1. 1温州医科大学附属第三医院呼吸科,2温州医科大学附属第一医院呼吸科,温州 325200,浙江
  • 收稿日期:2018-08-07 修回日期:2018-10-13 出版日期:2019-04-26 发布日期:2019-05-01
  • 通讯作者: 李玉苹,女,硕士,主任医师,研究方向:肺癌靶向治疗。 Tel:13868467423 E-mail:ysf1004@163.com
  • 作者简介:朱林佳,女,硕士,主治医师,研究方向:肺癌靶向治疗。 Tel:13906871971 E-mail:kitty.linjia@163.com
  • 基金资助:

    浙江省医药卫生科技青年人才计划项目(2016101300)

miR-1304 inhibits non-small cell lung cancer cell invasion and proliferation in vitro via targeting heme oxygenase-1

ZHU Linjia 1, YUAN Shaofei 1, SHANGGUAN Zongxiao 1,CI Xiao 1, ZHAO Renguo 1, LI Yuping 2   

  1. 1 Department of Respiratory Medcine, the Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, Zhejiang, China;2 Department of Respiratory Medcine, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, Zhejiang, China
  • Received:2018-08-07 Revised:2018-10-13 Online:2019-04-26 Published:2019-05-01

摘要:

目的:探讨miR-1304对肺癌细胞增殖和侵袭的作用及机制。方法:应用实时定量PCR检测miR-1304在不同转移能力肺癌A549和NCI-H1975细胞中的表达水平;脂质体2000介导分别转染miR-1304类似物和抑制物入A549 和 NCI-H1975细胞;应用MTT法和细胞集落形成实验分别检测miR-1304对肺癌细胞增殖活性的作用及生长抑制作用;细胞凋亡和细胞周期分别采用膜联蛋白V-PE/7-AAD和PI染色分析进行检测。双荧光素酶报告基因验证miR-1304是否作用于血红素氧合酶(heme oxygenase-1,HO-1) mRNA的3'UTR区预测靶位;Western blot检测HO-1蛋白水平。结果:miR-1304高表达可显著抑制肺癌细胞形成的数量和生存能力,以及诱导细胞凋亡和G0/G1期细胞周期阻滞。体外侵袭实验及细胞增殖实验结果显示,miR-1304可抑制肺癌细胞侵袭和增殖;经双荧光素酶报告基因验证HO-1是miR-1304的靶基因。结论:miR-1304在肺癌中表达,通过直接作用于HO-1可抑制肺癌细胞的侵袭和增殖,miR-1304是肺癌的一个潜在治疗靶点。

关键词: 肺癌, microRNA-1304, 血红素氧合酶-1, 侵袭, 增殖

Abstract:

AIM:To investigate the direct target of miR-1304 and its function in NSCLC in vitro. METHODS: Real-time quantitative PCR was used to detect the expression of miR-1304 in lung cancer cell A549 and NCI-H1975 .Transwell assay was used to test the role of miR-1304 on regulating invasion and migration of cells. The cell proliferation and survival were investigated via cell counting, MTT and colony-formation assays. Cell apoptosis and cell cycle were examined using annexin V-PE/7-AAD and PI staining assays, respectively. Dual luciferase reporter gene was used to analyze the binding between miR-1304 and 3'UTR of heme oxygenase-1, Western blot detected the HO-1 protein levels. RESULTS:MiR-1304 significantly decreased the number and viability of NSCLC cells and colony formation, and induced cell apoptosis and G0/G1 phase cell cycle arrest. HO-1 was demonstrated to be a direct target of miR-1304 in NSCLC cells. Furthermore, altered expression of miR-1304 by transfection of pre-miR-1304 mimics and inhibitor signifcantly affected the ability of invasion and proliferation of lung cancer cells. Altered expression of miR-1304 markedly down-regulated the HO-1 protein levels of lung cancer cells. In addition, dual luciferase reporter gene assay indicated that miR-1304 regulated HO-1 expression by binding to the 3'UTR of HO-1 mRNA. CONCLUSION: MicroRNA-1304 is a tumor suppressor and HO-1 is its direct target in NSCLC. The results suggest the potential for miR-1304 as a therapeutic target for NSCLC.

Key words: NSCLC, miR-1304, heme oxygenase-1, invasion, proliferation

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