| Literature DB >> 25496309 |
Matthieu Bertrand1, Valérie Petit, Ashish Jain, Raymonde Amsellem, Terje Johansen, Lionel Larue, Patrice Codogno, Isabelle Beau.
Abstract
The epithelial to mesenchymal transition (EMT) is an essential process during development and during tumor progression. Here, we observed the accumulation of the selective autophagy receptor and signaling adaptor sequestosome-1 (SQSTM1/p62) during growth factor-induced EMT in immortalized and tumor-derived epithelial cell lines. Modulation of the p62 level regulated the expression of junctional proteins. This effect was dependent on the ubiquitin-associated domain of p62, which stabilized the TGFβ/Smad signaling co-activator Smad4 and the EMT transcription factor Twist. This study highlights a novel function of p62 in a major epithelial phenotypic alteration.Entities:
Keywords: EGF, epidermal growth factor; GAPDH, glyceraldehyde-3-phosphate dehydrogenase; IGF-II, insulin growth factor II; MDCK, Madin Darby Canine Kidney; NMuMG, Normal Murine Mammary Gland; SQSTM1, Sequestosome 1; TGFβ, Transforming Growth Factor β; autophagy; smad proteins; snail; twist; ubiquitin
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Year: 2015 PMID: 25496309 PMCID: PMC4353226 DOI: 10.4161/15384101.2014.987619
Source DB: PubMed Journal: Cell Cycle ISSN: 1551-4005 Impact factor: 4.534