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Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer
Published on: January 12, 2020
Posttranslational modifications in regulating Notch signaling pathway and tumor angiogenesis: from molecular
Jiaan Wang1, Meng Zhang1, Donglai Wang1
1State Key Laboratory of Common Mechanism Research for Major Diseases & Department of Medical Genetics, Institute of Basic Medical Sciences & School of Basic Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China.
Abstract:
Tumorigenesis exhibits complex interactions with the vascular system. Targeting angiogenesis represents an emerging strategy for remodeling the tumor microenvironment. The Notch signaling pathway, a key regulatory mechanism, orchestrates tumor angiogenesis by modulating endothelial cell differentiation and vascular homeostasis. However, the clinical translation of Notch-targeted therapies is limited by severe toxicities due to lack of tissue specificity. Posttranslational modifications (PTMs) chemically regulate protein functions, thereby influencing multiple signaling cascades, including Notch signaling. Notably, Notch-associated PTMs are essential for signal transduction integrity. Some types of PTMs, such as glycosylation and ubiquitination, are the core for maintaining the integrity of the Notch signaling pathway. Dysfunctional Notch-related PTMs disrupt signal fidelity and drive pathological angiogenesis. This review systematically explores (i) crosstalk between Notch signaling and tumor angiogenesis, (ii) regulatory roles of PTMs on Notch molecules in tumor angiogenesis, and (iii) therapeutic potential of targeting Notch-related PTMs for anti-angiogenic strategies in tumor. We aim to elucidate the molecular nexus of PTMs-Notch-angiogenesis in tumor progression. Furthermore, we discuss therapeutic challenges in modulating Notch signaling pathway-dependent PTMs within tumor angiogenesis, focusing on critical barriers to their clinical translation in oncology.
Insights
Targeting Notch signaling pathway posttranslational modifications (PTMs) offers a novel strategy to control tumor angiogenesis. Understanding these PTMs is crucial for developing effective cancer therapies with reduced toxicity.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Tumorigenesis involves intricate interactions with the vascular system, making angiogenesis a key therapeutic target.
- The Notch signaling pathway regulates tumor angiogenesis but faces clinical translation challenges due to toxicity.
- Posttranslational modifications (PTMs) critically influence Notch signaling integrity and function.
Purpose of the Study:
- To explore the crosstalk between Notch signaling and tumor angiogenesis.
- To investigate the regulatory roles of PTMs on Notch molecules in tumor angiogenesis.
- To evaluate the therapeutic potential of targeting Notch-related PTMs for anti-angiogenic cancer strategies.
Main Methods:
- Systematic review of existing literature.
- Analysis of molecular mechanisms linking PTMs, Notch signaling, and angiogenesis.
- Discussion of therapeutic challenges and clinical translation barriers.
Main Results:
- Notch signaling is a central regulator of tumor angiogenesis.
- Specific PTMs like glycosylation and ubiquitination are vital for Notch pathway integrity.
- Dysfunctional Notch-related PTMs contribute to pathological angiogenesis.
Conclusions:
- Targeting Notch-related PTMs presents a promising avenue for anti-angiogenic cancer therapy.
- Elucidating the PTMs-Notch-angiogenesis nexus is key for tumor progression understanding.
- Overcoming clinical translation barriers for PTM-targeted therapies is essential for oncology.
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