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Receptor for advanced glycation end products (RAGE): a novel therapeutic target for diabetic vascular complication
Sho-ichi Yamagishi1, Kazuo Nakamura, Takanori Matsui
1Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan. shoichi@med.kurume-u.ac.jp
Abstract:
Diabetic vascular complication is a leading cause of acquired blindness, end-stage renal failure, a variety of neuropathies and accelerated atherosclerosis, which could account for disabilities and high mortality rates in patients with diabetes. Although several hyperglycemia-elicited metabolic and hemodynamic derangements have been implicated in the pathogenesis of diabetic vascular complication, the process of formation and accumulation of advanced glycation end products (AGEs) and their mode of action are most compatible with the theory 'hyperglycemic memory'. Further, there is a growing body of evidence that AGEs and their receptor (RAGE) axis is involved in the pathogenesis of diabetic vascular complication. Indeed, the engagement of RAGE with AGEs is shown to elicit oxidative stress generation and subsequently evoke inflammatory responses in various types of cells, thus playing an important role in the development and progression of diabetic micro- and macroangiopathy. These observations suggest that down-regulation of RAGE expression or blockade of the RAGE downstream signaling may be a promising target for therapeutic intervention in diabetic vascular complication. In this review, we discuss several types of agents that could potentially inhibit RAGE expression or its downstream pathways and their therapeutic implications in diabetic vascular complication.
Insights
Advanced glycation end products (AGEs) and their receptor (RAGE) contribute to diabetic vascular complications. Targeting the AGE-RAGE pathway offers a promising therapeutic strategy for managing diabetes-related vascular damage.
Area of Science:
- Endocrinology
- Vascular Biology
- Diabetology
Background:
- Diabetic vascular complications, including blindness and renal failure, are major causes of morbidity and mortality.
- Hyperglycemia-induced metabolic and hemodynamic changes contribute to these complications.
- The formation and accumulation of advanced glycation end products (AGEs) are strongly linked to 'hyperglycemic memory' in diabetes.
Purpose of the Study:
- To review the role of the AGE-RAGE axis in diabetic vascular complications.
- To discuss potential therapeutic agents targeting RAGE expression or its downstream signaling pathways.
Main Methods:
- Literature review focusing on the pathogenesis of diabetic vascular complications.
- Analysis of studies investigating the AGE-RAGE interaction and its cellular effects.
- Evaluation of therapeutic strategies aimed at inhibiting RAGE signaling.
Main Results:
- The AGE-RAGE axis plays a critical role in the pathogenesis of diabetic micro- and macroangiopathy.
- AGE-RAGE engagement triggers oxidative stress and inflammatory responses.
- Inhibition of RAGE expression or downstream signaling shows therapeutic potential.
Conclusions:
- The AGE-RAGE axis is a key mediator of diabetic vascular complications.
- Down-regulating RAGE or blocking its signaling pathways represents a promising therapeutic target.
- Further research into AGE-RAGE inhibitors could lead to novel treatments for diabetic vascular disease.
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