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FEBS Lett. 2012 Jul 4;586(14):1959-70. doi: 10.1016/j.febslet.2012.02.037. Epub 2012 Feb 28.

Regulation of EMT by TGFβ in cancer.

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Ludwig Institute for Cancer Research, Uppsala University, Box 595, SE-751 24 Uppsala, Sweden.


Transforming growth factor-β (TGFβ) suppresses tumor formation since it inhibits cell growth and promotes apoptosis. However, in advanced cancers TGFβ elicits tumor promoting effects through its ability to induce epithelial-mesenchymal transition (EMT) which enhances invasiveness and metastasis; in addition, TGFβ exerts tumor promoting effects on non-malignant cells of the tumor, including suppression of immune surveillance and stimulation of angiogenesis. TGFβ promotes EMT by transcriptional and posttranscriptional regulation of a group of transcription factors that suppresses epithelial features, such as expression of components of cell junctions and polarity complexes, and enhances mesenchymal features, such as production of matrix molecules and several cytokines and growth factors that stimulate cell migration. The EMT program has certain similarities with the stem cell program. Inducers and effectors of EMT are interesting targets for the development of improved diagnosis, prognosis and therapy of cancer.

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