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Blockade of diabetic vascular injury by controlling of AGE-RAGE system
Khin Mar Myint1, Yasuhiko Yamamoto, Shigeru Sakurai
1Department of Biochemistry & Molecular Vascular Biology, Kanazawa University Graduate School of Medical Science, Japan.
Abstract:
Vascular complications result in disabilities and short life expectancy in diabetic patients. During prolonged hyperglycemic exposure, non-enzymatically glycated protein derivatives termed advanced glycation endproducts (AGE) are formed at an accelerated rate and accumulated in blood and in tissues. Studies performed in vitro and in vivo revealed AGE and their receptor RAGE as the major accounts for vascular cell derangement characteristic of diabetes. The AGE-RAGE system would thus be considered as a candidate molecular target for overcoming diabetic vascular complications. Potential preventive and therapeutic approaches toward it include inhibition of AGE formation, breakage of preformed AGE-proteins crosslinks, blockade of AGE-RAGE interactions with RAGE competitors or antagonists and RAGE-specific signaling inhibition.
Insights
Diabetic vascular complications stem from advanced glycation endproducts (AGEs) and their receptor RAGE. Targeting the AGE-RAGE system offers a promising strategy for preventing and treating these debilitating conditions.
Area of Science:
- Endocrinology and Metabolism
- Cardiovascular Research
- Molecular Biology
Background:
- Diabetic patients face significant disability and mortality due to vascular complications.
- Prolonged hyperglycemia accelerates the formation and accumulation of advanced glycation endproducts (AGEs).
- AGEs and their receptor RAGE are implicated in the vascular cell dysfunction observed in diabetes.
Purpose of the Study:
- To investigate the role of the AGE-RAGE system in diabetic vascular complications.
- To identify the AGE-RAGE axis as a potential molecular target for therapeutic intervention.
Main Methods:
- In vitro and in vivo studies were conducted to examine AGE and RAGE interactions.
- Analysis of AGE formation, accumulation, and crosslinking of proteins.
- Evaluation of RAGE signaling pathways in vascular cells.
Main Results:
- The AGE-RAGE system was identified as a key mediator of vascular cell derangement in diabetes.
- Evidence supports the direct contribution of AGEs and RAGE to diabetic vascular pathology.
Conclusions:
- The AGE-RAGE system represents a critical molecular target for managing diabetic vascular complications.
- Therapeutic strategies could involve inhibiting AGE formation, breaking AGE crosslinks, blocking AGE-RAGE interaction, or inhibiting RAGE signaling.
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