ERβ Impedes Prostate Cancer EMT by Destabilizing HIF-1α and Inhibiting VEGF-Mediated Snail Nuclear Localization: Implications for Gleason Grading

被引:331
作者
Mak, Paul [1 ]
Leav, Irwin [1 ]
Pursell, Bryan [1 ]
Bae, Donggoo [1 ]
Yang, Xiaofang [1 ]
Taglienti, Cherie A. [1 ]
Gouvin, Lindsey M. [1 ]
Sharma, Vishva M. [1 ]
Mercurio, Arthur M. [1 ]
机构
[1] Univ Massachusetts, Sch Med, Dept Canc Biol, Worcester, MA 01605 USA
关键词
ESTROGEN-RECEPTOR-BETA; ENDOTHELIAL GROWTH-FACTOR; EPITHELIAL-MESENCHYMAL TRANSITION; E-CADHERIN EXPRESSION; BREAST-CANCER; CARCINOMA-CELLS; TUMOR-CELLS; TRANSCRIPTIONAL REPRESSOR; RECENT TRENDS; ALPHA;
D O I
10.1016/j.ccr.2010.02.030
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
High Gleason grade prostate carcinomas are aggressive, poorly differentiated tumors that exhibit diminished estrogen receptor beta (ER beta) expression. We report that a key function of ER beta and its specific ligand 5 alpha-androstane-3 beta,17 beta-diol (3 beta-adiol) is to maintain an epithelial phenotype and repress mesenchymal characteristics in prostate carcinoma. Stimuli (TGF-beta and hypoxia) that induce an epithelial-mesenchymal transition (EMT) diminish ER beta expression, and loss of ER beta is sufficient to promote an EMT. The mechanism involves ER beta-mediated destabilization of HIF-1 alpha and transcriptional repression of VEGF-A. The VEGF-A receptor neuropilin-1 drives the EMT by promoting Snaill nuclear localization. Importantly, this mechanism is manifested in high Gleason grade cancers, which exhibit significantly more HIF-1 alpha and VEGF expression, and Snail1 nuclear localization compared to low Gleason grade cancers.
引用
收藏
页码:319 / 332
页数:14
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