MicroRNA-182 targets SMAD7 to potentiate TGFβ-induced epithelial-mesenchymal transition and metastasis of cancer cells.
MicroRNA-182 targets SMAD7 to potentiate TGFβ-induced epithelial-mesenchymal transition and metastasis of cancer cells.
复制标题
MicroRNA-182靶向SMAD7增强TGFβ诱导的癌细胞上皮间质转化和转移
DOI:
10.1038/ncomms13884
复制
发表时间:
2016-12-20
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
The transforming growth factor β (TGFβ) pathway plays critical roles during cancer cell epithelial-mesenchymal transition (EMT) and metastasis. SMAD7 is both a transcriptional target and a negative regulator of TGFβ signalling, thus mediating a negative feedback loop that may potentially restrain TGFβ responses of cancer cells. Here, however, we show that TGFβ treatment induces SMAD7 transcription but not its protein level in a panel of cancer cells. Mechanistic studies reveal that TGFβ activates the expression of microRNA-182 (miR-182), which suppresses SMAD7 protein. miR-182 silencing leads to SMAD7 upregulation on TGFβ treatment and prevents TGFβ-induced EMT and invasion of cancer cells. Overexpression of miR-182 promotes breast tumour invasion and TGFβ-induced osteoclastogenesis for bone metastasis. Furthermore, miR-182 expression inversely correlates with SMAD7 protein in human tumour samples. Therefore, our data reveal the miR-182-mediated disruption of TGFβ self-restraint and provide a mechanism to explain the unleashed TGFβ responses in metastatic cancer cells. SMAD7 is a transcriptional target and a negative regulator of TGFβ signalling forming a negative feedback loop. Here the authors show that in cancer cells TGFβ activates the expression of microRNA-182 that suppresses SMAD7 protein, promoting TGFβ-mediated breast tumour invasion and bone metastasis.
登录
查看更多内容
影响因子:
6
作者:
Jiang, Lili;Mao, Pu;Li, Jun
通讯作者:
Li, Jun
DOI:
10.1073/pnas.062010399
发表时间:
2002-03-19
影响因子:
11.1
作者:
Dong, CM;Zhu, SK;Goldschmidt-Clermont, PJ
通讯作者:
Goldschmidt-Clermont, PJ
影响因子:
6.4
作者:
Boulay, JL;Mild, G;Rochlitz, C
通讯作者:
Rochlitz, C
影响因子:
--
作者:
Bauge, C.;Attia, J.;Boumediene, K.
通讯作者:
Boumediene, K.
DOI:
10.1006/bbrc.1998.9170
发表时间:
1998-08-19
影响因子:
3.1
作者:
Afrakhte, M;Morén, A;ten Dijke, P
通讯作者:
ten Dijke, P