Document Detail

miR-214 and hypoxia down-regulate Necl-2/CADM1 and enhance ErbB2/ErbB3 signaling.
MedLine Citation:
PMID:  23301758     Owner:  NLM     Status:  Publisher    
Necl-2/CADM1 is down-regulated by the promoter hypermethylation and/or the loss of heterozygosity at chromosome 11q23.2 in many types of cancers and serves as a tumor suppressor by interacting in cis with ErbB3 and suppressing the ligand-induced ErbB2/ErbB3 signaling for cell movement and death. However, the incidence of these epigenetic and genetic abnormalities of Necl-2 is 30-60% in these cancers. We investigated here other mechanisms that down-regulate Necl-2. miR-214, that is frequently up-regulated in a variety of cancers, targeted the 3'UTR of the Necl-2 mRNA directly, suppressed the translation of Necl-2 and enhanced the ligand-induced ErbB2/ErbB3 signaling in human colon cancer Caco-2 cells. Hypoxia reduced the Necl-2 protein level in a manner independent of miR-214 or hypoxia-inducible factor-1α in Caco-2 cells. These results indicate that miR-214 and hypoxia are novel regulators that down-regulate Necl-2 and enhance ErbB2/ErbB3 signaling.
Kenji Momose; Akihiro Minami; Yohei Shimono; Kiyohito Mizutani; Kentaro Nobutani; Takeshi Azuma; Yoshimi Takai
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-10
Journal Detail:
Title:  Genes to cells : devoted to molecular & cellular mechanisms     Volume:  -     ISSN:  1365-2443     ISO Abbreviation:  Genes Cells     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9607379     Medline TA:  Genes Cells     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 The Authors Genes to Cells © 2013 by the Molecular Biology Society of Japan and Wiley Publishing Asia Pty Ltd.
Division of Molecular and Cellular Biology, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan; Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
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