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 ORIGINAL ARTICLE
Year : 2015  |  Volume : 52  |  Issue : 7  |  Page : 168-171

miR-338-3p suppresses epithelial-mesenchymal transition and metastasis in human nonsmall cell lung cancer


Department of Respiratory, The Sixth Affiliated Hospital of Wenzhou Medical University, People's Hospital of Lishui City, Zhejiang, China

Correspondence Address:
C Xiao-ping
Department of Respiratory, The Sixth Affiliated Hospital of Wenzhou Medical University, People's Hospital of Lishui City, Zhejiang
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-509X.186569

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OBJECTIVES: MicroRNAs are important modulators of the cellular epithelial-mesenchymal transition (EMT) process and are associated with metastasis in human nonsmall cell lung cancer (NSCLC). In this study, we tried to investigate the role of miR-338-3p in NSCLC cells. MATERIALS AND METHODS: Real-time polymerase chain reaction was applied to quantify the expression levels of miR-338-3p, as well as EMT-associated molecules in NSCLC cells. Wound healing and transwell assays were performed to evaluate the migration and invasion capacities, respectively. Dual-luciferase reporter assay was finally performed to determine the targeting of zinc finger E-box-binding protein 2 (ZEB2) by miR-338-3p. RESULTS: We found that miR-338-3p was significantly reduced in NSCLC cell lines. Forced expression of miR-338-3p in A549 cells led to the suppression of migration/invasion capacity and inhibition of epithelial markers. In addition, we proved that miR-338-3p could directly target ZEB2. CONCLUSIONS: In general, we summarized that miR-338-3p could inhibit EMT and metastasis of human NSCLC cells, which probably via directly targeting ZEB2 expression.






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