Targeting ubiquitin specific proteases for drug discovery
Laurent Daviet1, Frédéric Colland
1Hybrigenics SA, 3-5 Impasse Reille, 75014 Paris, France.
Abstract:
Deregulation of the ubiquitin-proteasome system has been implicated in the pathogenesis of many human diseases, including cancer, neurodegenerative disorders and viral diseases. The recent approval of the proteasome inhibitor bortezomib (Velcade) for the treatment of multiple myeloma and mantle cell lymphoma establishes this system as a valid target for cancer treatment. A promising alternative to targeting the proteasome itself would be to interact at the level of the upstream, ubiquitin conjugation/deconjugation system to generate more specific, less toxic anticancer agents. Ubiquitin specific proteases (USP) are de-ubiquitinating enzymes which remove ubiquitin from specific protein substrates and allow protein salvage from proteasome degradation, regulation of protein localization or activation. Due to their protease activity and their involvement in several pathologies, USPs are emerging as potential target sites for pharmacological interference in the ubiquitin regulatory machinery. We will review here this class of enzymes from target validation to small molecule drug discovery.
Insights
The ubiquitin-proteasome system is crucial in diseases. Targeting upstream ubiquitin specific proteases (USPs) offers a novel strategy for developing specific, less toxic anticancer drugs.
Area of Science:
- Biochemistry
- Molecular Biology
- Pharmacology
Background:
- The ubiquitin-proteasome system (UPS) is implicated in various human diseases, including cancer.
- Proteasome inhibitors like bortezomib are approved cancer treatments, validating the UPS as a therapeutic target.
- Targeting upstream components of the UPS may yield more specific and less toxic anticancer agents.
Purpose of the Study:
- To review ubiquitin specific proteases (USPs) as potential therapeutic targets.
- To explore the role of USPs in disease pathogenesis and drug discovery.
- To bridge the gap from target validation to small molecule drug discovery for USPs.
Main Methods:
- Literature review of ubiquitin specific proteases (USPs).
- Analysis of USP involvement in disease pathways.
- Evaluation of USP as a drug target for small molecule development.
Main Results:
- Deregulation of the UPS is linked to numerous human diseases.
- Ubiquitin specific proteases (USPs) are key de-ubiquitinating enzymes.
- USPs offer a promising avenue for developing targeted therapies.
Conclusions:
- Ubiquitin specific proteases (USPs) represent a viable target for pharmacological intervention.
- Targeting USPs could lead to the development of novel anticancer drugs with improved specificity and reduced toxicity.
- Further research into USP-targeted drug discovery is warranted.
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