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Updated: Jun 8, 2025

Profiling Ubiquitin and Ubiquitin-like Dependent Post-translational Modifications and Identification of Significant Alterations
Published on: November 7, 2019
Crosstalk between O-GlcNAcylation and ubiquitination: a novel strategy for overcoming cancer therapeutic resistance
Kai Sun1,2, Yuan Zhi1, Wenhao Ren1,2,3
1Department of Oral and Maxillofacial Reconstruction, The Affiliated Hospital of Qingdao University, 1677 Wutaishan Road, Huangdao Distract, Qingdao, 266003, Shandong, China.
Abstract:
Developing resistance to cancer treatments is a major challenge, often leading to disease recurrence and metastasis. Understanding the underlying mechanisms of therapeutic resistance is critical for developing effective strategies. O-GlcNAcylation, a post-translational modification that adds GlcNAc from the donor UDP-GlcNAc to serine and threonine residues of proteins, plays a crucial role in regulating protein function and cellular signaling, which are frequently dysregulated in cancer. Similarly, ubiquitination, which involves the attachment of ubiquitin to to proteins, is crucial for protein degradation, cell cycle control, and DNA repair. The interplay between O-GlcNAcylation and ubiquitination is associated with cancer progression and resistance to treatment. This review discusses recent discoveries regarding the roles of O-GlcNAcylation and ubiquitination in cancer resistance, their interactions, and potential mechanisms. It also explores how targeting these pathways may provide new opportunities to overcome cancer treatment resistance in cancer, offering fresh insights and directions for research and therapeutic development.
Insights
Understanding how O-GlcNAcylation and ubiquitination impact cancer treatment resistance is key. Targeting these pathways offers new strategies to overcome drug resistance and improve patient outcomes.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Therapeutic resistance is a major obstacle in cancer treatment, often causing recurrence and metastasis.
- O-GlcNAcylation and ubiquitination are critical post-translational modifications involved in regulating protein function and cellular signaling.
- The interplay between these two modifications is increasingly recognized for its role in cancer progression and treatment resistance.
Purpose of the Study:
- To review recent discoveries on the roles of O-GlcNAcylation and ubiquitination in cancer resistance.
- To explore the interactions between O-GlcNAcylation and ubiquitination in the context of cancer.
- To discuss potential therapeutic strategies targeting these pathways to overcome treatment resistance.
Main Methods:
- Literature review of recent research on O-GlcNAcylation and ubiquitination in cancer.
- Analysis of studies investigating the interplay between these modifications.
- Synthesis of findings related to mechanisms of resistance and therapeutic targeting.
Main Results:
- O-GlcNAcylation and ubiquitination significantly influence cancer cell signaling and survival.
- Their combined activity is linked to the development of resistance to various cancer therapies.
- Specific molecular mechanisms underlying this interplay are being elucidated.
Conclusions:
- Targeting O-GlcNAcylation and ubiquitination pathways presents a promising avenue for overcoming cancer treatment resistance.
- Further research into these modifications could lead to novel therapeutic interventions.
- Understanding these complex regulatory networks is crucial for advancing cancer therapy.
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