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Updated: Jul 30, 2025

Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer
Published on: January 12, 2020
The Intricate Notch Signaling Dynamics in Therapeutic Realms of Cancer
Plaboni Sen1, Siddhartha Sankar Ghosh1,2
1Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
Abstract:
The Notch pathway is remarkably simple without the interventions of secondary messengers. It possesses a unique receptor-ligand interaction that imparts signaling upon cleavage of the receptor followed by the nuclear localization of its cleaved intracellular domain. It is found that the transcriptional regulator of the Notch pathway lies at the intersection of multiple signaling pathways that enhance the aggressiveness of cancer. The preclinical and clinical evidence supports the pro-oncogenic function of Notch signaling in various tumor subtypes. Owing to its oncogenic role, the Notch signaling pathway assists in enhanced tumorigenesis by facilitating angiogenesis, drug resistance, epithelial to mesenchymal transition, etc., which is also attributed to the poor outcome in patients. Therefore, it is extremely vital to discover a suitable inhibitor to downregulate the signal-transducing ability of Notch. The Notch inhibitory agents, such as receptor decoys, protease (ADAM and γ-secretase) inhibitors, and monoclonal/bispecific antibodies, are being investigated as candidate therapeutic agents. Studies conducted by our group exemplify the promising results in ablating tumorigenic aggressiveness by inhibiting the constituents of the Notch pathway. This review deals with the detailed mechanism of the Notch pathways and their implications in various malignancies. It also bestows us with the recent therapeutic advances concerning Notch signaling in the context of monotherapy and combination therapy.
Insights
The Notch pathway promotes cancer aggressiveness by enhancing tumorigenesis and drug resistance. Inhibiting Notch signaling shows promise in preclinical and clinical studies for cancer therapy.
Area of Science:
- Molecular Biology
- Oncology
- Cell Signaling
Background:
- The Notch pathway is a simple signaling cascade involving receptor-ligand interactions, receptor cleavage, and nuclear translocation of its intracellular domain.
- This pathway is implicated in multiple signaling networks that contribute to cancer aggressiveness.
- Evidence supports a pro-oncogenic role for Notch signaling across various tumor types, influencing angiogenesis, drug resistance, and epithelial-to-mesenchymal transition.
Purpose of the Study:
- To review the detailed mechanisms of Notch pathway signaling.
- To explore the implications of Notch signaling in various malignancies.
- To discuss recent therapeutic advances targeting Notch signaling in cancer.
Main Methods:
- Review of preclinical and clinical evidence on Notch pathway's role in cancer.
- Analysis of Notch pathway's involvement in tumorigenesis and therapeutic resistance.
- Examination of Notch inhibitory agents and their therapeutic potential.
Main Results:
- Notch signaling is a key regulator in cancer aggressiveness, promoting tumorigenesis.
- Inhibition of Notch pathway constituents demonstrates promising results in reducing cancer aggressiveness.
- Various Notch inhibitory agents, including receptor decoys and antibodies, are under investigation.
Conclusions:
- Targeting the Notch pathway is crucial for downregulating its signal-transducing ability in cancer.
- Therapeutic strategies involving Notch inhibition, as monotherapy or combination therapy, offer potential for improved patient outcomes.
- Understanding Notch pathway mechanisms is vital for developing effective cancer treatments.
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