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Cancer Cell. 2013 Feb 11;23(2):186-99. doi: 10.1016/j.ccr.2012.12.020.

Integrated analyses identify a master microRNA regulatory network for the mesenchymal subtype in serous ovarian cancer.

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1
Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.

Erratum in

  • Cancer Cell. 2013 May 13;23(5):705.

Abstract

Integrated genomic analyses revealed a miRNA-regulatory network that further defined a robust integrated mesenchymal subtype associated with poor overall survival in 459 cases of serous ovarian cancer (OvCa) from The Cancer Genome Atlas and 560 cases from independent cohorts. Eight key miRNAs, including miR-506, miR-141, and miR-200a, were predicted to regulate 89% of the targets in this network. Follow-up functional experiments illustrate that miR-506 augmented E-cadherin expression, inhibited cell migration and invasion, and prevented TGFβ-induced epithelial-mesenchymal transition by targeting SNAI2, a transcriptional repressor of E-cadherin. In human OvCa, miR-506 expression was correlated with decreased SNAI2 and VIM, elevated E-cadherin, and beneficial prognosis. Nanoparticle delivery of miR-506 in orthotopic OvCa mouse models led to E-cadherin induction and reduced tumor growth.

PMID:
23410973
PMCID:
PMC3603369
DOI:
10.1016/j.ccr.2012.12.020
[Indexed for MEDLINE]
Free PMC Article

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