title: MicroRNA-206 functions as a tumor suppressor in colorectal cancer by targeting FMNL2.
abstract: BACKGROUND
  Colorectal cancer (CRC) is one of the most common cancers in the world. MicroRNAs play important roles in the progression of CRC. This study aimed to investigate the role of miR-206 and its novel mechanism in the invasion and metastasis of CRC.
  
  
  METHODS
  Real-time RT-PCR or Western blotting was used to detect the expressions of miR-206, FMNL2 and c-MET in CRC cell lines and tissues. Luciferase reporter assays were conducted to detect the associations between miR-206 and 3'UTRs of FMNL2 and c-MET. A series of loss-of-function and gain-of-function assays were performed to evaluate the effect of miR-206 on the proliferation, invasion and metastasis of CRC cells.
  
  
  RESULTS
  miR-206 was significantly down-regulated in CRC tissues and correlated closely with differentiation, lymphatic metastasis and serosal invasion. miR-206 suppressed CRC cell proliferation by arresting CRC cells in the G1/G0 phase and accelerating apoptosis. miR-206 also inhibited cell invasion and lung metastasis in CRC cells. Mechanically, FMNL2 and c-MET were identified as direct targets of miR-206. And FMNL2 rescued the suppression of miR-206 in the proliferation and invasion of CRC cells.
  
  
  CONCLUSIONS
  This study revealed functional and mechanistic links between miR-206 and oncogene FMNL2 and c-MET in the progression of CRC. miR-206 functioned as a tumor suppressor in the progression of CRC by targeting FMNL2 and c-MET. Restoration of miR-206 expression may represent a promising therapeutic approach for targeting malignant CRC.
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 419750459@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 419750459@qq.com.
authors.forename: X L
authors.initials: XL
authors.lastname: Ren
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 506343091@qq.com.|Department of Pathology, Xinxiang Medical University, Xinxiang City, 453003, Henan Province, People's Republic of China. 506343091@qq.com.
authors.forename: G Y
authors.initials: GY
authors.lastname: He
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 656088404@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 656088404@qq.com.
authors.forename: X M
authors.initials: XM
authors.lastname: Li
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 18987057@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 18987057@qq.com.
authors.forename: Hui
authors.initials: H
authors.lastname: Men
authors.affiliation: Department of Gastroenterology, Leshan People's Hospital, Leshan City, 614000, Sichuan Province, People's Republic of China. 651218437@qq.com.
authors.forename: L Z
authors.initials: LZ
authors.lastname: Yi
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 531946910@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 531946910@qq.com.
authors.forename: G F
authors.initials: GF
authors.lastname: Lu
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 631079663@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 631079663@qq.com.
authors.forename: S N
authors.initials: SN
authors.lastname: Xin
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 815561320@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 815561320@qq.com.
authors.forename: P X
authors.initials: PX
authors.lastname: Wu
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 985667529@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 985667529@qq.com.
authors.forename: Y L
authors.initials: YL
authors.lastname: Li
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 30221424@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 30221424@qq.com.
authors.forename: W T
authors.initials: WT
authors.lastname: Liao
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. dyq@fimmu.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. dyq@fimmu.com.
authors.forename: Y Q
authors.initials: YQ
authors.lastname: Ding
authors.affiliation: Department of Pathology, Southern Medical University, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 651218437@qq.com.|Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou City, 510515, Guangdong Province, People's Republic of China. 651218437@qq.com.
authors.forename: L
authors.initials: L
authors.lastname: Liang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000818:Animals; D045744:Cell Line, Tumor; D015179:Colorectal Neoplasms / Q000235:genetics* / Q000473:pathology; D005260:Female; D000080865:Formins; D015972:Gene Expression Regulation, Neoplastic; D016147:Genes, Tumor Suppressor; D006801:Humans; D008297:Male; D051379:Mice; D008819:Mice, Nude; D035683:MicroRNAs / Q000235:genetics / Q000502:physiology*; D008875:Middle Aged; D011506:Proteins / Q000235:genetics*; D019859:Proto-Oncogene Proteins c-met / Q000235:genetics; D023041:Xenograft Model Antitumor Assays
chemical_list: C476208:FMNL2 protein, human; D000080865:Formins; C546087:MIRN206 microRNA, human; D035683:MicroRNAs; D011506:Proteins; D019859:Proto-Oncogene Proteins c-met
keywords: Colorectal cancer; FMNL2; MiR-206; Progression