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Notch and Epithelial-Mesenchyme Transition in Development and Tumor Progression: Another Turn of the Screw
Joaquín Grego-Bessa, Juan Díez and José Luis de la Pompa
volume 3 | issue 6
june 2004Pages: 718 - 721
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Notch is an ancient cell signaling system that regulates cell fate specification, stem cell maintenance and initiation of differentiation in embryonic and postnatal tissues.1 Alteration of these functions in the adult have been associated to various types of cancer in which Notch may act as an oncogen or as a tumor suppressor.2,3 As occurs during development, Notch cooperates with other signaling pathways in the transformation process.2,4 Notch has recently been shown to promote epithelial-to-mesenchymal transition (EMT) during cardiac valve formation, via snail induction and subsequent cadherin downregulation.5 One implication of this work is that Notch acting through a similar mechanism, may also be involved in the EMT process that occurs during tumor progression and converts polarized epithelial cells into motile, invasive cells.6
We now provide open access to journal articles published online for one year or more. This article may be downloaded at the following link:
Download PDF If the document does not open, please right-click on the link (control-click on a Macintosh) and select the option to save the file to disk.