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Updated: Jul 12, 2025

Method for Measuring the Activity of Deubiquitinating Enzymes in Cell Lines and Tissue Samples
Published on: May 10, 2015
Deubiquitylating Enzymes in Cancer and Immunity
Jiang Ren1, Peng Yu2, Sijia Liu3,4
1The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518033, P. R. China.
Abstract:
Deubiquitylating enzymes (DUBs) maintain relative homeostasis of the cellular ubiquitome by removing the post-translational modification ubiquitin moiety from substrates. Numerous DUBs have been demonstrated specificity for cleaving a certain type of ubiquitin linkage or positions within ubiquitin chains. Moreover, several DUBs perform functions through specific protein-protein interactions in a catalytically independent manner, which further expands the versatility and complexity of DUBs' functions. Dysregulation of DUBs disrupts the dynamic equilibrium of ubiquitome and causes various diseases, especially cancer and immune disorders. This review summarizes the Janus-faced roles of DUBs in cancer including proteasomal degradation, DNA repair, apoptosis, and tumor metastasis, as well as in immunity involving innate immune receptor signaling and inflammatory and autoimmune disorders. The prospects and challenges for the clinical development of DUB inhibitors are further discussed. The review provides a comprehensive understanding of the multi-faced roles of DUBs in cancer and immunity.
Insights
Deubiquitylating enzymes (DUBs) regulate cellular processes by removing ubiquitin. Their dysregulation is linked to cancer and immune disorders, highlighting their complex roles.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Deubiquitylating enzymes (DUBs) are crucial for maintaining cellular homeostasis by removing ubiquitin.
- DUBs exhibit specificity in cleaving ubiquitin chains and can function independently of their catalytic activity.
- Dysregulation of DUBs contributes to diseases, particularly cancer and immune disorders.
Purpose of the Study:
- To review the dual roles of DUBs in cancer development and progression.
- To summarize the involvement of DUBs in various immune system functions and disorders.
- To discuss the potential and challenges of developing DUB inhibitors for clinical applications.
Main Methods:
- Literature review of DUBs' functions in cancer.
- Analysis of DUBs' roles in innate and adaptive immunity.
- Examination of clinical development prospects for DUB inhibitors.
Main Results:
- DUBs play Janus-faced roles in cancer, influencing proteasomal degradation, DNA repair, apoptosis, and metastasis.
- DUBs are implicated in innate immune receptor signaling, inflammation, and autoimmune diseases.
- The clinical development of DUB inhibitors presents both opportunities and challenges.
Conclusions:
- DUBs are critical regulators with multifaceted roles in cancer and immunity.
- Understanding DUBs' complex functions is essential for developing targeted therapies.
- Further research into DUB inhibitors holds promise for treating cancer and immune-related diseases.
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