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An Assay to Detect Protection of the Retinal Vasculature from Diabetes-Related Death in Mice
Published on: January 12, 2024
Advanced glycation end products (AGEs) and their receptor (RAGE) system in diabetic retinopathy
Sho-ichi Yamagishi1, Kazuo Nakamura, Takanori Matsui
1Department of Internal Medicine III, Kurume University School of Medicine, Kurume 830-0011, Japan. shoichi@med.kurume-u.ac.jp
Abstract:
Vascular complications are a leading cause of 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. There is a growing body of evidence that formation and accumulation of advanced glycation end products (AGEs) progress during normal aging, and at an extremely accelerated rate in diabetes, thus being involved in the pathogenesis of diabetic vascular complications. Furthermore, the interaction by AGEs of their receptor, RAGE, activates down-stream signaling and evokes inflammatory responses in vascular wall cells. Therefore, inhibition of AGE formation or blockade of the RAGE signaling may be a promising target for therapeutic intervention to prevent diabetic vascular complications. This review discusses the molecular mechanisms of diabetic retinopathy, especially focusing on the AGE-RAGE system. Several types of inhibitors of the AGE-RAGE system and their therapeutic implications are also reviewed here.
Insights
Diabetic vascular complications, including retinopathy, are linked to advanced glycation end products (AGEs) and their receptor (RAGE). Inhibiting the AGE-RAGE system offers a promising therapeutic target.
Area of Science:
- Endocrinology
- Molecular Biology
- Ophthalmology
Background:
- Diabetic vascular complications contribute significantly to morbidity and mortality.
- Advanced glycation end products (AGEs) accumulate rapidly in diabetes, driving pathogenesis.
- The receptor for AGEs (RAGE) interaction triggers inflammatory responses in vascular cells.
Purpose of the Study:
- To review the molecular mechanisms of diabetic retinopathy.
- To focus on the role of the AGE-RAGE system in diabetic retinopathy.
- To discuss inhibitors of the AGE-RAGE system and their therapeutic potential.
Main Methods:
- Literature review of molecular mechanisms.
- Focus on the AGE-RAGE signaling pathway.
- Analysis of therapeutic interventions targeting AGE-RAGE.
Main Results:
- AGEs and RAGE are implicated in diabetic vascular complications, including retinopathy.
- AGE-RAGE interaction activates inflammatory signaling in vascular cells.
- Inhibiting AGE formation or RAGE signaling shows therapeutic promise.
Conclusions:
- The AGE-RAGE system is a key player in diabetic retinopathy pathogenesis.
- Targeting the AGE-RAGE pathway represents a viable strategy for preventing diabetic vascular complications.
- Further research into AGE-RAGE inhibitors is warranted for clinical application.
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