| Literature DB >> 22014979 |
Hyeonjung Kim1, Oisun Jung, Minkyung Kang, Mi-Sook Lee, Doyoung Jeong, Jihye Ryu, Youra Ko, Yoon-Ju Choi, Jung Weon Lee.
Abstract
Transmembrane 4L six family member 5 (TM4SF5) can regulate cell-cell adhesion and cellular morphology via cytoplasmic p27(Kip1)-mediated changes in RhoA activity. However, how TM4SF5 causes cytosolic p27(Kip1) stabilization remains unknown. In this study we found that TM4SF5-mediated Ser10 phosphorylation of p27(Kip1) required for cytosolic localization was not always correlated with Akt activity. Inhibition or suppression of c-Jun N-terminal kinase (JNK) in TM4SF5-expressing cells decreased Ser10 phosphorylation of p27(Kip1) and rescued expression levels and localization of adherence junction molecules to cell-cell contacts. These observations suggest involvement of JNKs in TM4SF5-mediated p27(Kip1) Ser10 phosphorylation and localization during epithelial-mesenchymal transition.Entities:
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Year: 2011 PMID: 22014979 DOI: 10.1016/j.canlet.2011.09.030
Source DB: PubMed Journal: Cancer Lett ISSN: 0304-3835 Impact factor: 8.679