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Updated: Aug 23, 2026

Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
Notch and epithelial-mesenchyme transition in development and tumor progression: another turn of the screw
Joaquín Grego-Bessa1, Juan Díez, Luika Timmerman
1Department of Immunology and Oncology, Centro Nacional de Biotecnología (CSIC), Campus Cantoblanco, Madrid, Spain.
Abstract:
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 oncogene or as a tumor suppressor. As occurs during development, Notch cooperates with other signaling pathways in the transformation process. Notch has recently been shown to promote epithelial-to-mesenchymal transition (EMT) during cardiac valve formation, via snail induction and subsequent cadherin downregulation. 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.
Insights
The Notch signaling pathway regulates cell development and can act as an oncogene or tumor suppressor in cancer. Notch promotes epithelial-to-mesenchymal transition (EMT), a process crucial for tumor progression and invasion.
Area of Science:
- Cellular signaling pathways
- Developmental biology
- Cancer research
Background:
- The Notch signaling system is fundamental for cell fate, stem cell maintenance, and differentiation in embryonic and adult tissues.
- Dysregulation of Notch signaling in adults is linked to various cancers, where it can function as either an oncogene or a tumor suppressor.
- Notch signaling interacts with other pathways during cellular transformation.
Purpose of the Study:
- To investigate the role of Notch signaling in epithelial-to-mesenchymal transition (EMT).
- To explore the potential involvement of Notch in cancer progression via EMT.
Main Methods:
- Analysis of Notch signaling pathways.
- Investigation of Notch-induced EMT during cardiac valve formation.
- Examination of snail induction and cadherin downregulation mechanisms.
Main Results:
- Notch signaling was shown to promote EMT during cardiac valve development.
- This promotion occurred through the induction of snail and subsequent downregulation of cadherins.
- These findings suggest a conserved mechanism for Notch-mediated EMT.
Conclusions:
- Notch signaling plays a role in EMT, a process critical for embryonic development.
- The mechanism of Notch-induced EMT, involving snail and cadherins, may be relevant to tumor progression.
- Notch signaling could be a key factor in the EMT process driving cancer invasion and metastasis.
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