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Published on: November 1, 2019
Ubiquitin, SUMO, and Nedd8 as Therapeutic Targets in Cancer
Pierre Gâtel1, Marc Piechaczyk1, Guillaume Bossis2
1Equipe Labellisée Ligue Contre le Cancer, IGMM, Univ Montpellier, CNRS, Montpellier, France.
Abstract:
Ubiquitin defines a family of approximately 20 peptidic posttranslational modifiers collectively called the Ubiquitin-like (UbLs). They are conjugated to thousands of proteins, modifying their function and fate in many ways. Dysregulation of these modifications has been implicated in a variety of pathologies, in particular cancer. Ubiquitin, SUMO (-1 to -3), and Nedd8 are the best-characterized UbLs. They have been involved in the regulation of the activity and/or the stability of diverse components of various oncogenic or tumor suppressor pathways. Moreover, the dysregulation of enzymes responsible for their conjugation/deconjugation has also been associated with tumorigenesis and cancer resistance to therapies. The UbL system therefore constitutes an attractive target for developing novel anticancer therapeutic strategies. Here, we review the roles and dysregulations of Ubiquitin, SUMO, and Nedd8 pathways in tumorigenesis, as well as recent advances in the identification of small molecules targeting their conjugating machineries for potential application in the fight against cancer.
Insights
Ubiquitin-like modifiers (UbLs) regulate protein function and are crucial in cancer. Targeting UbL pathways offers promising new strategies for cancer therapy development.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Ubiquitin-like (UbL) proteins are posttranslational modifiers regulating protein function and fate.
- Dysregulation of UbL pathways is implicated in various pathologies, notably cancer.
- Ubiquitin, SUMO, and Nedd8 are key UbLs involved in oncogenic and tumor suppressor pathways.
Purpose of the Study:
- To review the roles and dysregulations of Ubiquitin, SUMO, and Nedd8 pathways in tumorigenesis.
- To highlight recent advances in small molecules targeting UbL conjugating machineries for cancer therapy.
Main Methods:
- Literature review of UbL pathways in cancer.
- Analysis of dysregulation mechanisms in tumorigenesis.
- Survey of small molecule inhibitors targeting UbL conjugation enzymes.
Main Results:
- UbL pathways critically influence protein activity and stability in cancer.
- Aberrant UbL conjugation/deconjugation enzymes contribute to cancer development and therapy resistance.
- Targeting UbL conjugating enzymes shows therapeutic potential.
Conclusions:
- The UbL system is a significant target for novel anticancer strategies.
- Small molecules targeting UbL conjugating machineries represent a promising avenue for cancer treatment.
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