MicroRNA-4465 suppresses tumor proliferation and metastasis in non-small cell lung cancer by directly targeting the oncogene EZH2

作者：Sun, Jian; Tian, Xin; Lu, Sheng-Qiang^*; Hu, Hai-Bo^*

来源：Biomedicine & Pharmacotherapy, 2017, 96: 1358-1362.

DOI：10.1016/j.biopha.2017.11.070

• NSCLC
• miR-4465
• EZH2
• Proliferation
• Invasion

MicroRNA-26 (miR-26) has been reported to be connected with tumor progression. MicroRNA-4465 (miR-4465) was one member of miR-26 family, however, the role of miR-4465 in non-small cell lung cancer (NSCLC) was unknown. This study was aimed to explore the function of miR-4465 and investigate whether miR-4465 can be a potential target for treating human NSCLC. QRT-PCR was applied to evaluate the miR-4465 expression levels in NSCLC cells. Then, we demonstrated the role of miR-4465 in NSCLC cells biological characteristics through detecting proliferation, migration and invasion. Luciferase reporter assay and TargetScan were applied to explore the potential target gene of miR-4465. In this study, we found that the miR-4465 expression levels in NSCLC cell lines were significantly reduced when compared to the normal human bronchial epithelial cell lines. And, over expression of miR-4465 could restrain the proliferation, migration and invasion of NSCLC. Moreover, MiR-4465 reduced EZH2 protein expression through the binding sites in 3'-UTR of the EZH2 mRNA, indicating EZH2 may be a direct target gene of miR-4465. Conclusively, miR-4465 suppressed cancer cells proliferation and metastasis by directly targeting the oncogene EZH2 and it may serve as a new potential therapeutic target in NSCLC.

• 出版日期2017-12
• 单位湖北省肿瘤医院; 徐州医科大学