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Updated: May 24, 2026

Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer
Published on: January 12, 2020
Notch signaling and breast cancer
1Department of Surgical Oncology, University Health Network, Ontario, Canada. michael.reedijk@uhn.on.ca
Abstract:
It has been more than two decades since Notch has been identified as an oncogene in mouse mammary tumor virus-infected mice. Since this discovery, activated Notch signaling and up-regulation of tumor-promoting Notch target genes have been observed in human breast cancer. In addition, high expression of Notch ligands and receptors has been shown to correlate with poor outcome in this malignancy. Notch affects multiple cellular processes including stem cell maintenance, cell fate specification, differentiation, proliferation, motility and survival. Perturbation of these activities is a hallmark of carcinogenesis and evidence continues to accumulate that aberrant Notch activity influences breast cancer progression through these processes.
Insights
Notch signaling, identified as an oncogene over 20 years ago, is now linked to human breast cancer progression. Aberrant Notch activity influences key cellular processes, impacting patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Notch signaling was identified as an oncogene in mouse models over two decades ago.
- Activated Notch signaling and its target genes are implicated in human breast cancer.
- High Notch receptor/ligand expression correlates with poor prognosis in breast cancer patients.
Purpose of the Study:
- To review the role of Notch signaling in breast cancer.
- To highlight Notch's influence on cellular processes relevant to carcinogenesis.
- To underscore the link between aberrant Notch activity and breast cancer progression.
Main Methods:
- Literature review of studies on Notch signaling in breast cancer.
- Analysis of molecular mechanisms by which Notch affects cellular processes.
- Correlation of Notch expression levels with clinical outcomes.
Main Results:
- Notch signaling plays a critical role in stem cell maintenance, cell fate, differentiation, proliferation, motility, and survival.
- Aberrant Notch activity perturbs these essential cellular functions, contributing to cancer development.
- Evidence supports Notch's influence on multiple facets of breast cancer progression.
Conclusions:
- Notch signaling is a significant factor in breast cancer etiology and progression.
- Targeting Notch pathways may offer therapeutic strategies for breast cancer.
- Further research is warranted to fully elucidate Notch's complex role in malignancy.
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