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Stem cell fate determination through protein O-GlcNAcylation
Muhammad Abid Sheikh1, Bright Starling Emerald2, Suraiya Anjum Ansari3
1Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE.
The Journal of Biological Chemistry
|November 6, 2020
Summary
Stem cells use the metabolite UDP-N-acetylglucosamine (UDP-GlcNAc) to link nutrient availability to gene expression. This process, O-GlcNAcylation, regulates stem cell self-renewal and differentiation, impacting cell fate.
Area of Science:
- Biochemistry
- Molecular Biology
- Stem Cell Biology
Background:
- Stem cells self-renew and differentiate, a balance controlled by gene regulation.
- Metabolic pathways influence gene expression via epigenetic modifications.
- UDP-N-acetylglucosamine (UDP-GlcNAc) is a metabolite involved in protein O-GlcNAcylation.
Purpose of the Study:
- To review how stem cells connect metabolic signals to gene regulation through O-GlcNAcylation.
- To explore the role of O-GlcNAcylation in stemness, self-renewal, and differentiation.
- To highlight potential therapeutic applications of O-GlcNAcylation in stem cell biology.
Main Methods:
- Literature review of studies on stem cells, metabolism, and epigenetics.
- Analysis of the role of UDP-GlcNAc and O-GlcNAcylation in gene regulation.
- Synthesis of evidence linking metabolic inputs to stem cell fate via O-GlcNAcylation.
Main Results:
- O-GlcNAcylation modifies histones and other proteins, impacting gene expression.
- Cellular UDP-GlcNAc levels, influenced by glucose, act as a metabolic sensor.
- O-GlcNAcylation regulates stem cell self-renewal and lineage-specific differentiation.
Conclusions:
- Stem cells utilize O-GlcNAcylation to integrate metabolic status with epigenetic and transcriptional programs.
- Understanding O-GlcNAcylation is crucial for deciphering stemness and guiding stem cell therapies.
- Metabolic control of gene expression via O-GlcNAcylation offers novel therapeutic avenues.
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