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Updated: Sep 3, 2025

Method for Measuring the Activity of Deubiquitinating Enzymes in Cell Lines and Tissue Samples
Published on: May 10, 2015
Emerging Role of Deubiquitinating Enzymes (DUBs) in Melanoma Pathogenesis
Mickael Ohanna1,2, Pierric Biber1,2, Marcel Deckert1,2
1Université Côte d'Azur, INSERM, C3M, 06204 Nice, France.
Abstract:
Metastatic melanoma is the leading cause of death from skin cancer. Therapies targeting the BRAF oncogenic pathway and immunotherapies show remarkable clinical efficacy. However, these treatments are limited to subgroups of patients and relapse is common. Overall, the majority of patients require additional treatments, justifying the development of new therapeutic strategies. Non-genetic and genetic alterations are considered to be important drivers of cellular adaptation mechanisms to current therapies and disease relapse. Importantly, modification of the overall proteome in response to non-genetic and genetic events supports major cellular changes that are required for the survival, proliferation, and migration of melanoma cells. However, the mechanisms underlying these adaptive responses remain to be investigated. The major contributor to proteome remodeling involves the ubiquitin pathway, ubiquitinating enzymes, and ubiquitin-specific proteases also known as DeUBiquitinases (DUBs). In this review, we summarize the current knowledge regarding the nature and roles of the DUBs recently identified in melanoma progression and therapeutic resistance and discuss their potential as novel sources of vulnerability for melanoma therapy.
Insights
Deubiquitinases (DUBs) are key to melanoma cell adaptation and resistance to cancer therapies. Targeting DUBs offers a promising new strategy for treating metastatic melanoma and overcoming treatment relapse.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Metastatic melanoma is a deadly skin cancer with limited treatment options.
- Current therapies like BRAF inhibitors and immunotherapies are effective but not for all patients, and relapse is frequent.
- New therapeutic strategies are urgently needed to address treatment resistance and disease progression.
Purpose of the Study:
- To review the current understanding of deubiquitinases (DUBs) in melanoma.
- To explore the roles of DUBs in melanoma progression and therapeutic resistance.
- To discuss the potential of DUBs as therapeutic targets for metastatic melanoma.
Main Methods:
- Literature review of recent studies on DUBs in melanoma.
- Analysis of the involvement of the ubiquitin pathway in melanoma cell adaptation.
- Synthesis of information on DUBs' roles in proteome remodeling and cellular changes.
Main Results:
- Non-genetic and genetic alterations drive melanoma adaptation and resistance.
- Proteome remodeling, largely mediated by the ubiquitin pathway, is crucial for melanoma survival and migration.
- Specific DUBs have been identified as critical players in melanoma progression and resistance.
Conclusions:
- Deubiquitinases (DUBs) are central to melanoma's adaptive responses to therapy.
- Targeting DUBs represents a novel and promising therapeutic avenue for metastatic melanoma.
- Further investigation into DUBs may uncover new vulnerabilities to combat melanoma treatment failure.
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