Transcriptional downregulation of miR-133b by REST promotes prostate cancer metastasis to bone via activating TGF-β signaling.
Transcriptional downregulation of miR-133b by REST promotes prostate cancer metastasis to bone via activating TGF-β signaling.
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REST 对 miR-133b 的转录下调通过激活 TGF-β 信号传导促进前列腺癌骨转移
DOI:
10.1038/s41419-018-0807-3
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发表时间:
2018-07-13
影响因子:
9
通讯作者:
Tang Y
中科院分区:
文献类型:
--
作者:
Huang S;Wa Q;Pan J;Peng X;Ren D;Li Q;Dai Y;Yang Q;Huang Y;Zhang X;Zhou W;Yuan D;Cao J;Li Y;He P;Tang Y
High avidity of bone metastasis is an important characteristic in prostate cancer (PCa). Downexpression of miR-133b has been reported to be implicated in the development, progression and recurrence in PCa. However, clinical significance and biological roles of miR-133b in bone metastasis of PCa remain unclear. Here we report that miR-133b is downregulated in PCa tissues and further decreased in bone metastatic PCa tissues. Downexpression of miR-133b positively correlates with advanced clinicopathological characteristics and shorter bone metastasis-free survival in PCa patients. Upregulating miR-133b inhibits invasion, migration in vitro and bone metastasis in vivo in PCa cells. Mechanistically, we find that miR-133b suppresses activity of TGF-β signaling via directly targeting TGF-β receptor I and II, which further inhibits bone metastasis of PCa cells. Our results further reveal that overexpression of REST contributes to miR-133b downexpression via transcriptional repression in PCa tissues. Importantly, silencing miR-133b enhances invasion and migration abilities in vitro and bone metastasis ability in vivo in REST-silenced PCa cells. The clinical correlation of miR-133b with TGFBRI, TGFBRII, REST and TGF-β signaling activity is verified in PCa tissues. Therefore, our results uncover a novel mechanism of miR-133b downexpression that REST transcriptionally inhibits miR-133b expression in PCa cells, and meanwhile support the notion that administration of miR-133b may serve as a rational regimen in the treatment of PCa bone metastasis.
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影响因子:
4.2
作者:
Hu, Zebin;Gupta, Janhavi;Seth, Prem
通讯作者:
Seth, Prem
影响因子:
64.5
作者:
CHONG, JHA;TAPIARAMIREZ, J;MANDEL, G
通讯作者:
MANDEL, G
影响因子:
9
作者:
Hu G;Zhao X;Wang C;Geng Y;Zhao J;Xu J;Zuo B;Zhao C;Wang C;Zhang X
通讯作者:
Zhang X
影响因子:
5.3
作者:
Abderrahmani, A;Steinmann, M;Waeber, G
通讯作者:
Waeber, G
影响因子:
8.8
作者:
Dai, Yuhu;Ren, Dong;Peng, Xinsheng
通讯作者:
Peng, Xinsheng