title: MicroRNA-124 Functions as a Tumor Suppressor by Regulating CDH2 and Epithelial-Mesenchymal Transition in Non-Small Cell Lung Cancer.
abstract: OBJECTIVE
  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.
authors.forename: Teng
authors.initials: T
authors.lastname: Ma
authors.forename: Ye
authors.initials: Y
authors.lastname: Zhao
authors.forename: Ke
authors.initials: K
authors.lastname: Wei
authors.forename: Guoliang
authors.initials: G
authors.lastname: Yao
authors.forename: Chunfeng
authors.initials: C
authors.lastname: Pan
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Yang
authors.initials: Y
authors.lastname: Xia
authors.forename: Zhicheng
authors.initials: Z
authors.lastname: He
authors.forename: Xiaotong
authors.initials: X
authors.lastname: Qi
authors.forename: Zhi
authors.initials: Z
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Shao
mesh_terms: D020413:3' Untranslated Regions; D000368:Aged; D015703:Antigens, CD / Q000235:genetics / Q000378:metabolism*; D015153:Blotting, Western; D015820:Cadherins / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism*; D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D045744:Cell Line, Tumor; D002465:Cell Movement; D049109:Cell Proliferation; D058750:Epithelial-Mesenchymal Transition; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000401:mortality; D008297:Male; D035683:MicroRNAs / Q000235:genetics / Q000378:metabolism*; D008875:Middle Aged; D034622:RNA Interference; D034741:RNA, Small Interfering / Q000378:metabolism; D060888:Real-Time Polymerase Chain Reaction
chemical_list: D020413:3' Untranslated Regions; D015703:Antigens, CD; C050361:CDH2 protein, human; D015820:Cadherins; C509207:MIRN124 microRNA, human; D035683:MicroRNAs; D034741:RNA, Small Interfering