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RAGE Axis

2004; Lippincott Williams & Wilkins; Volume: 24; Issue: 8 Linguagem: Inglês

10.1161/01.atv.0000133191.71196.90

1524-4636

Yoshifumi Naka, Loredana Bucciarelli, Thoralf Wendt, Larisse K. Lee, Ling Ling Rong, Ravichandran Ramasamy, Shi Fang Yan, Ann Marie Schmidt,

Diabetes and associated disorders

Receptor for AGE (RAGE) is a multi-ligand member of the immunoglobulin superfamily of cell surface molecules. Engagement of RAGE by its signal transduction ligands evokes inflammatory cell infiltration and activation in the vessel wall. In diabetes, when fueled by oxidant stress, hyperglycemia, and superimposed stresses such as hyperlipidemia or acute balloon/endothelial denuding arterial injury, the ligand–RAGE axis amplifies vascular stress and accelerates atherosclerosis and neointimal expansion. In this brief synopsis, we review the use of rodent models to test these concepts. Taken together, our findings support the premise that RAGE is an amplification step in vascular inflammation and acceleration of atherosclerosis. Future studies must rigorously test the potential impact of RAGE blockade in human subjects; such trials are on the horizon.