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Therapeutic potential of targeting ubiquitin-specific proteases in colorectal cancer
Chern Ein Oon1, Padmanabhan Anbazhagan2, Chong Teik Tan2
1Experimental Drug Development Centre (EDDC), A*STAR, 10, Biopolis Road, #05-01, Chromos 138670, Singapore; Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, Minden, Gelugor, Penang, Malaysia.
Abstract:
Ubiquitin-specific proteases (USPs) are a subset of deubiquitinating enzymes (DUBs) that have crucial roles in regulating key signaling pathways, DNA repair mechanisms, and immune responses by modulating the interactions and stability of proteins, including oncogenes and tumor suppressors in many cancers, such as colorectal cancer (CRC). USPs present an attractive reservoir of drug targets that could potentially overcome the shortcomings of conventional pathway-specific cancer therapies. This review explores the roles of USPs in CRC, addresses the challenges in discovering and developing USP inhibitors, highlights recent advancements in drug development, and discusses the potential of targeted protein degraders and stabilizers including proteolysis-targeting chimeras (PROTACs), molecular glues, and DUB-targeting chimeras (DUBTACs) as strategies for drugging USPs.
Insights
Ubiquitin-specific proteases (USPs) are key regulators in colorectal cancer (CRC). New strategies like PROTACs offer promising therapeutic approaches to target these enzymes effectively.
Area of Science:
- Biochemistry
- Oncology
- Molecular Biology
Background:
- Ubiquitin-specific proteases (USPs) are deubiquitinating enzymes (DUBs) vital for cellular processes.
- USPs regulate protein stability and interactions, impacting oncogenes and tumor suppressors in cancers like colorectal cancer (CRC).
- Targeting USPs offers a potential alternative to conventional cancer therapies.
Purpose of the Study:
- To review the role of USPs in colorectal cancer (CRC).
- To examine challenges and recent advancements in developing USP inhibitors.
- To discuss novel therapeutic strategies targeting USPs.
Main Methods:
- Literature review of USP functions in CRC.
- Analysis of current drug development challenges and progress for USP inhibitors.
- Exploration of emerging therapeutic modalities like PROTACs, molecular glues, and DUBTACs.
Main Results:
- USPs play significant roles in CRC pathogenesis.
- Developing USP inhibitors faces considerable challenges.
- Targeted protein degraders and stabilizers show promise for USP-targeted therapy.
Conclusions:
- USPs are critical targets in colorectal cancer therapy.
- Overcoming challenges in USP inhibitor development is essential.
- Novel strategies such as PROTACs and DUBTACs represent a promising future for CRC treatment.
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