miR-9, a MYC/MYCN-activated microRNA, regulates E-cadherin and cancer metastasis.
miR-9, a MYC/MYCN-activated microRNA, regulates E-cadherin and cancer metastasis.
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DOI:
10.1038/ncb2024
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发表时间:
2010-03
影响因子:
21.3
通讯作者:
Weinberg, Robert A.
中科院分区:
文献类型:
--
作者:
Ma, Li;Young, Jennifer;Prabhala, Harsha;Pan, Elizabeth;Mestdagh, Pieter;Muth, Daniel;Teruya-Feldstein, Julie;Reinhardt, Ferenc;Onder, Tamer T.;Valastyan, Scott;Westermann, Frank;Speleman, Frank;Vandesompele, Jo;Weinberg, Robert A.
MicroRNAs (miRNAs) are increasingly implicated in regulating the malignant progression of cancer. Here we show that miR-9, the level of which is upregulated in breast cancer cells, directly targets CDH1, the E-cadherin-encoding mRNA, leading to increased cell motility and invasiveness. miR-9-mediated E-cadherin downregulation results in the activation of β-catenin signaling, which contributes to upregulated expression of the gene encoding vascular endothelial growth factor (VEGF); this leads, in turn, to increased tumor angiogenesis. Overexpression of miR-9 in otherwise-non-metastatic breast tumor cells enables these cells to form pulmonary micrometastases in mice. Conversely, inhibiting miR-9 using a ‘miRNA sponge’ in highly malignant cells inhibits metastasis formation. Expression of miR-9 is activated by MYC and MYCN, both of which directly bind to the mir-9-3 locus. Significantly, in human cancers, miR-9 levels correlate with MYCN amplification, tumor grade, and metastatic status. These findings uncover a regulatory and signaling pathway involving a metastasis-promoting miRNA that is predicted to directly target expression of the key metastasis-suppressing protein E-cadherin.
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DOI:
10.1083/jcb.153.5.1049
发表时间:
2001-05-28
期刊:
The Journal of cell biology
影响因子:
--
作者:
Gottardi CJ;Wong E;Gumbiner BM
通讯作者:
Gumbiner BM
影响因子:
11.2
作者:
Kuperwasser, C;Dessain, S;Rosenblatt, M
通讯作者:
Rosenblatt, M
影响因子:
11.2
作者:
Iorio, MV;Ferracin, M;Croce, CM
通讯作者:
Croce, CM
影响因子:
48
作者:
Ebert, Margaret S.;Neilson, Joel R.;Sharp, Phillip A.
通讯作者:
Sharp, Phillip A.
影响因子:
30.8
作者:
Krek, A;Grun, D;Rajewsky, N
通讯作者:
Rajewsky, N