Neuroscience

Pathogenesis

Endothelial dysfunction

Diabetes mellitus

Biology

Endocrinology

Endothelial stem cell

Glycation

Proinflammatory cytokine

Paleontology

In vitro

Immunology

Rage (emotion)

Inflammation

Advanced glycation end-product

Diabetic retinopathy

Angiogenesis

Retinopathy

Context (archaeology)

Pericyte

Cancer research

Biochemistry

Medicine

Cellular Physiology and Biochemistry

Diabetic retinopathy (DR) is a common and devastating microvascular complication of diabetes and a major cause of acquired blindness in young adults. Advanced glycation end products (AGEs) accumulated under hyperglycemic conditions are thought to play an important role in the pathogenesis of DR. AGEs can exert their deleterious effects by acting directly to induce aberrant crosslinking of extracellular matrix proteins, to increase vascular stiffness, altering vascular structure and function. Moreover, AGEs binding to the receptor for AGEs (RAGE) evokes intensive intracellular signaling cascades that leading to endothelial dysfunction, elaboration of key proinflammatory cytokines and proangiogenic factors, mediating pericyte apoptosis, vascular inflammation and angiogenesis, as well as breakdown of the inner blood-retinal barrier (BRB), the end result of all these events is damage to the neural and vascular components of the retina. Elucidation of AGE-induced mechanisms will help in the understanding of the complex cellular and molecular pathogenesis associated with DR. Novel anti-AGEs agents or AGE crosslink “breakers” are being investigated, it is hoped that in next few years, some of these promising therapies will be successfully applied in clinical context, aiming to reduce the major economical and medical burden caused by DR.

Involvement of Advanced Glycation End Products in the Pathogenesis of Diabetic Retinopathy