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Published on: May 22, 2016
O-GlcNAcylation in tumorigenesis and its implications for cancer therapy
Dize Zhang1, Yihang Qi2, Hiroyuki Inuzuka2
1Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Abstract:
O-linked N-acetylglucosaminylation (O-GlcNAcylation) is a dynamic and reversible posttranslational modification that targets serine and threonine residues in a variety of proteins. Uridine diphospho-N-acetylglucosamine, which is synthesized from glucose via the hexosamine biosynthesis pathway, is the major donor of this modification. O-GlcNAc transferase is the sole enzyme that transfers GlcNAc onto protein substrates, while O-GlcNAcase is responsible for removing this modification. O-GlcNAcylation plays an important role in tumorigenesis and progression through the modification of specific protein substrates. In this review, we discuss the tumor-related biological functions of O-GlcNAcylation and summarize the recent progress in the development of pharmaceutical options to manipulate the O-GlcNAcylation of specific proteins as potential anticancer therapies.
Insights
O-linked N-acetylglucosaminylation (O-GlcNAcylation) is a key protein modification in cancer. This review explores its role in tumorigenesis and potential as a therapeutic target for anticancer drugs.
Area of Science:
- Biochemistry
- Molecular Biology
- Cancer Research
Background:
- O-linked N-acetylglucosaminylation (O-GlcNAcylation) is a dynamic posttranslational modification of serine/threonine residues.
- Uridine diphospho-N-acetylglucosamine, derived from glucose, is the GlcNAc donor.
- O-GlcNAc transferase and O-GlcNAcase regulate O-GlcNAcylation.
- This modification is implicated in various cellular processes, including cancer.
Purpose of the Study:
- To review the tumor-related biological functions of O-GlcNAcylation.
- To summarize recent advancements in pharmaceutical strategies targeting O-GlcNAcylation for cancer therapy.
Main Methods:
- Literature review of O-GlcNAcylation in cancer.
- Analysis of enzymatic pathways and protein substrates involved.
- Survey of emerging pharmaceutical agents and their mechanisms.
Main Results:
- O-GlcNAcylation significantly influences tumorigenesis and cancer progression.
- Specific protein substrates are modulated by O-GlcNAcylation, impacting cancer pathways.
- Emerging drugs aim to modulate O-GlcNAcylation for therapeutic benefit.
Conclusions:
- O-GlcNAcylation is a critical factor in cancer biology.
- Targeting O-GlcNAcylation presents a promising avenue for novel anticancer therapies.
- Further research into O-GlcNAcylation modulators is warranted.
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