Glucosamine as a regulator of O-GlcNAc signaling: linking metabolism to disease pathogenesis

 

Have your competent? doctor reconcile the earlier research showing benefits! Sorry, no can do; YOUR DOCTOR WILL JUST PROVE THEIR INCOMPETENCE BY DOING NOTHING!

• glucosamine (6 posts to March 2015)

Glucosamine as a regulator of O-GlcNAc signaling: linking metabolism to disease pathogenesis

• Sang-Min Kim,
• Chanhaeng Lee,
• Dong Yeol Kim &
• Inn-Oc Han 

• 646 Accesses

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Abstract

Background

Glucosamine, a naturally occurring amino sugar abundant in cartilage, has long been utilized as a dietary supplement to alleviate osteoarthritis (OA) and joint pain. Beyond its structural role in maintaining joint integrity, glucosamine is metabolized through the hexosamine biosynthetic pathway (HBP) to generate UDP-N-acetylglucosamine (UDP-GlcNAc), the indispensable donor substrate for protein O-linked N-acetylglucosamine (O-GlcNAc) modification.

Findings

Accumulating evidence indicates that glucosamine-driven modulation of HBP flux and the consequent alteration of O-GlcNAcylation exert profound effects on cellular signaling, metabolic regulation, and inflammatory responses. These mechanisms extend far beyond musculoskeletal health, influencing the pathogenesis of diverse conditions such as rheumatoid arthritis (RA), diabetes, obesity, neuroinflammation, neurodegenerative disorders, sepsis, and cancer. Despite glucosamine’s long-standing clinical use, its potential role as a metabolic regulator of O-GlcNAc cycling remains underexplored.

Conclusion

This review integrates current insights into the molecular basis of glucosamine-enhanced O-GlcNAcylation, highlighting its implications for disease onset and progression, and proposing a broader therapeutic framework that positions glucosamine as a promising modulator of inflammation and systemic pathology.