Journal
CELLULAR PHYSIOLOGY AND BIOCHEMISTRY
Volume 38, Issue 4, Pages 1563-1574Publisher
KARGER
DOI: 10.1159/000443097
Keywords
MicroRNA-124; CDH2; Epithelial-mesenchymal transition; Non-small-cell lung cancer
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Funding
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions [JX10231801]
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Background/Aims: Abnormal expression of microRNA-124 (miR-124) was found in non-small cell lung cancer (NSCLC). However, the association between miR-124 and CDH2 has not been reported yet. This study aims to reveal the inhibiting effects of miR-124 on the expression of CDH2 in NSCLC. Methods: Quantitative real-time polymerase chain reaction was used to evaluate the expression of miR-124 and CDH2 in NSCLC tissues. Cell viability, apoptosis and invasion assays were carried out in NSCLC cell lines after transfection. The regulation mechanism was confirmed by luciferase report assay and western blot (WB). Results: Significantly decreased expression of miR-124 was found in NSCLC specimens and cell lines. Overexpression of miR-124 apparently suppressed the proliferation and invasion of NSCLC cell lines in vitro. Luciferase report assay and WB revealed that CDH2 was a target gene of miR-124. Furthermore, results of WB showed that epithelial-mesenchymal transition (EMT) could be inhibited by up-regulation of miR-124. Conclusions: Taken together, our findings present the first evidence that miR-124 could suppress the expression of CDH2 and regulate EMT, which might lead to a potential therapeutic strategy focusing on miR-124 and CDH2 for human lung cancer. (C) 2016 The Author(s) Published by S. Karger AG, Basel
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