RAGE and its ligands in retinal disease
Gaetano R Barile1, Ann M Schmidt
1Department of Ophthalmology, Columbia University, 635 West 165 Street, New York, NY 10032, USA. grb17@columbia.edu
Current Molecular Medicine
|March 12, 2008
Summary
The receptor for advanced glycation endproducts (RAGE) plays a role in various diseases. Targeting RAGE may offer new treatments for vision-threatening retinal conditions like diabetic retinopathy and macular degeneration.
Area of Science:
- Ophthalmology
- Molecular Biology
- Cellular Biology
Background:
- Receptor for advanced glycation endproducts (RAGE) is a cell surface molecule implicated in diabetic complications, neurodegeneration, inflammation, and cancer.
- RAGE interacts with multiple ligands, including AGEs, amyloid-beta, S100 proteins, and HMGB proteins.
Purpose of the Study:
- To explore the role of RAGE in retinal dysfunction and its potential as a therapeutic target for visually threatening retinal diseases.
Main Methods:
- Review of existing literature on RAGE expression and function in the retina.
- Analysis of RAGE's involvement in the pathogenesis of diabetic retinopathy, age-related macular degeneration, and proliferative vitreoretinopathy.
Main Results:
- RAGE is expressed in retinal neural cells, vasculature, and RPE cells.
- RAGE ligands, particularly AGEs, are implicated in diabetic retinopathy and age-related macular disease pathogenesis.
- RAGE activation can initiate and sustain cellular damage in both inner and outer retina.
Conclusions:
- RAGE plays a significant role in retinal dysfunction associated with diabetes, aging, and inflammation.
- Antagonizing RAGE-ligand interactions presents a promising therapeutic strategy for various retinal diseases.
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