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miR-137 Inhibits the Invasion of Melanoma Cells through Downregulation of Multiple Oncogenic Target Genes.
MedLine Citation:
PMID:  23151846     Owner:  NLM     Status:  Publisher    
MicroRNAs are small noncoding RNAs that regulate gene expression and have important roles in various types of cancer. Previously, miR-137 was reported to act as a tumor suppressor in different cancers, including malignant melanoma. In this study, we show that low miR-137 expression is correlated with poor survival in stage IV melanoma patients. We identified and validated two genes (c-Met and YB1) as direct targets of miR-137 and confirmed two previously known targets, namely enhancer of zeste homolog 2 (EZH2) and microphthalmia-associated transcription factor (MITF). Functional studies showed that miR-137 suppressed melanoma cell invasion through the downregulation of multiple target genes. The decreased invasion caused by miR-137 overexpression could be phenocopied by small interfering RNA knockdown of EZH2, c-Met, or Y box-binding protein 1 (YB1). Furthermore, miR-137 inhibited melanoma cell migration and proliferation. Finally, miR-137 induced apoptosis in melanoma cell lines and decreased BCL2 levels. In summary, our study confirms that miR-137 acts as a tumor suppressor in malignant melanoma and reveals that miR-137 regulates multiple targets including c-Met, YB1, EZH2, and MITF.Journal of Investigative Dermatology advance online publication, 15 November 2012; doi:10.1038/jid.2012.357.
Chonglin Luo; Paul W Tetteh; Patrick R Merz; Elke Dickes; Alia Abukiwan; Agnes Hotz-Wagenblatt; Stefan Holland-Cunz; Tobias Sinnberg; Birgit Schittek; Dirk Schadendorf; Sven Diederichs; Stefan B Eichmüller
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-15
Journal Detail:
Title:  The Journal of investigative dermatology     Volume:  -     ISSN:  1523-1747     ISO Abbreviation:  J. Invest. Dermatol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0426720     Medline TA:  J Invest Dermatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Division of Translational Immunology (D015), German Cancer Research Center (DKFZ), Heidelberg, Germany.
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