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Published on: October 27, 2020
Transforming growth factor-beta signaling and ubiquitinators in cancer
1Laboratory of Cancer Genetics, Digestive Diseases, and GI Developmental Biology, Department of Surgery, Medicine and Lombardi Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA. eg239@georgetown.edu
Abstract:
Transforming growth factor-beta (TGF-beta) represents a large family of growth and differentiation factors that mobilize complex signaling networks to regulate cellular differentiation, proliferation, motility, adhesion, and apoptosis. TGF-beta signaling is tightly regulated by multiple complex mechanisms, and its deregulation plays a key role in the progression of many forms of cancer. Upon ligand binding, TGF-beta signals are transduced by Smad proteins, which in turn are tightly dependent on modulation by adaptor proteins such as embryonic liver fodrin, Smad anchor for receptor activation, filamin, and crkl. A further layer of regulation is imposed by ubiquitin-mediated targeting and proteasomal degradation of specific components of the TGF-beta signaling pathway. This review focuses on the ubiquitinators that regulate TGF-beta signaling and the association of these ubiquitin ligases with various forms of cancer. Delineating the role of ubiquitinators in the TGF-beta signaling pathway could yield powerful novel therapeutic targets for designing new cancer treatments.
Insights
Transforming growth factor-beta (TGF-beta) signaling regulates cell functions but its deregulation drives cancer. This review highlights ubiquitinators controlling TGF-beta pathways and their links to cancer, offering potential therapeutic targets.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Transforming growth factor-beta (TGF-beta) is crucial for cell regulation, with its dysregulation implicated in cancer progression.
- TGF-beta signaling involves Smad proteins and adaptor proteins, forming complex regulatory networks.
- Ubiquitin-mediated degradation adds another regulatory layer to TGF-beta signaling.
Purpose of the Study:
- To review the role of ubiquitinators in regulating TGF-beta signaling.
- To explore the association between these ubiquitin ligases and various cancer types.
- To identify potential therapeutic targets within the TGF-beta ubiquitination network for cancer treatment.
Main Methods:
- Literature review focusing on ubiquitinators and TGF-beta signaling.
- Analysis of studies linking ubiquitin ligases to cancer.
- Synthesis of information on regulatory mechanisms and therapeutic potential.
Main Results:
- Ubiquitinators play a critical role in modulating TGF-beta pathway components.
- Specific ubiquitin ligases are associated with the development and progression of diverse cancers.
- Targeting these ubiquitinators may offer novel strategies for cancer therapy.
Conclusions:
- Ubiquitin-mediated regulation is a key aspect of TGF-beta signaling.
- Understanding the interplay between ubiquitinators and TGF-beta signaling in cancer is vital.
- Targeting cancer-associated ubiquitin ligases in the TGF-beta pathway presents a promising avenue for novel cancer therapeutics.
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