|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Medicine / Faculty of Medicine >
Peer-reviewed Journal Articles, etc >
Mutant p53 gain-of-function induces epithelial–mesenchymal transition through modulation of the miR-130b–ZEB1 axis
This item is licensed under:Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported
| Title: | Mutant p53 gain-of-function induces epithelial–mesenchymal transition through modulation of the miR-130b–ZEB1 axis |
| Authors: | Dong, Peixin Browse this author | | Karaayvaz, M. Browse this author | | Jia, N. Browse this author | | Kaneuchi, M. Browse this author | | Hamada, J. Browse this author | | Watari, H. Browse this author | | Sudo, S. Browse this author | | Ju, J. Browse this author | | Sakuragi, N. Browse this author →KAKEN DB |
| Keywords: | EMT | | cancer | | gain-of-function | | miRNA | | p53 mutation |
| Issue Date: | 2013 |
| Publisher: | Nature Publishing Group |
| Journal Title: | Oncogene |
| Volume: | 32 |
| Issue: | 27 |
| Start Page: | 3286 |
| End Page: | 3295 |
| Publisher DOI: | 10.1038/onc.2012.334 |
| Abstract: | The tumor suppressor gene p53 has been implicated in the regulation of epithelial–mesenchymal transition (EMT) and tumor metastasis by regulating microRNA (miRNA) expression. Here, we report that mutant p53 exerts oncogenic functions and promotes EMT in endometrial cancer (EC) by directly binding to the promoter of miR-130b (a negative regulator of ZEB1) and inhibiting its transcription. We transduced p53 mutants into p53-null EC cells, profiled the miRNA expression by miRNA microarray and identified miR-130b as a potential target of mutant p53. Ectopic expression of p53 mutants repressed the expression of miR-130b and triggered ZEB1-dependent EMT and cancer cell invasion. Loss of an endogenous p53 mutation increased the expression of miR-130b, which resulted in reduced ZEB1 expression and attenuation of the EMT phenotype. Furthermore, re-expression of miR-130b suppressed mutant p53-induced EMT and ZEB1 expression. Importantly, the expression of miR-130 was significantly reduced in EC tissues, and patients with higher expression levels of miR-130b survived longer. These data provide a novel understanding of the roles of p53 gain-of-function mutations in accelerating tumor progression and metastasis through modulation of the miR-130b–ZEB1 axis. |
| Rights: | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/52992 |
| Appears in Collections: | 医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 櫻木 範明
|
