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Protein O-GlcNAcylation and cardiovascular (patho)physiology
Susan A Marsh1, Helen E Collins2, John C Chatham3
1From the Section of Experimental and Systems Pharmacology, College of Pharmacy, Washington State University, Spokane, Washington 99210-1495 and.
The Journal of Biological Chemistry
|October 23, 2014
Summary
Protein O-GlcNAcylation influences cardiovascular health, with high levels linked to diabetic complications. However, O-GlcNAc cycling is vital for normal cardiovascular function and may offer protection.
Area of Science:
- Biochemistry and Molecular Biology
- Cardiovascular Physiology
- Metabolic Regulation
Background:
- Protein O-GlcNAcylation (O-GlcNAc) is a dynamic post-translational modification
- Recent research highlights the complex role of O-GlcNAc in cardiovascular regulation
- Elevated O-GlcNAc levels are associated with glucose toxicity and diabetic cardiovascular complications
Purpose of the Study:
- To review the current understanding of O-GlcNAcylation's impact on cardiovascular pathophysiology
- To emphasize the critical role of O-GlcNAc cycling in maintaining normal cardiovascular function
- To synthesize evidence on the dual role of O-GlcNAc in cardiovascular health and disease
Main Methods:
- Literature review and synthesis of existing research
- Analysis of studies investigating O-GlcNAc levels and cardiovascular outcomes
- Examination of evidence for O-GlcNAc cycling's importance in cardiovascular physiology
Main Results:
- Increased O-GlcNAc is linked to detrimental effects like diabetic complications
- Acute O-GlcNAcylation activation demonstrates cardioprotective properties
- O-GlcNAc turnover is essential for the precise regulation of the cardiovascular system
Conclusions:
- O-GlcNAc modification plays a significant, context-dependent role in cardiovascular health
- Dysregulation of O-GlcNAc cycling contributes to cardiovascular pathophysiology
- Targeting O-GlcNAc pathways may offer therapeutic strategies for cardiovascular diseases
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