RAGE and glyoxalase in kidney disease

Area of Science:

• Biochemistry
• Nephrology
• Cellular Biology

Background:

• Glycation is a physiological process, but uncontrolled glycation leads to advanced glycation endproducts (AGEs) accumulation, termed glycative stress.
• Glycative stress is linked to kidney diseases and aging, often involving the receptor for AGE (RAGE)-AGE pathway or reduced glyoxalase 1 activity.
• AGEs disrupt protein homeostasis, causing endoplasmic reticulum (ER) stress and the unfolded protein response (UPR) in the kidney.

Purpose of the Study:

• To review the impact of glycative stress on kidney health.
• To highlight the roles of RAGE and glyoxalase 1 in kidney disease.
• To explore the interplay between glycative stress and ER stress in protein homeostasis.

Main Methods:

• Literature review focusing on glycative stress, RAGE, glyoxalase 1, and ER stress in kidney disease.
• Analysis of existing evidence on the mechanisms linking glycative stress to renal pathology.
• Discussion of therapeutic strategies targeting glycative stress.

Main Results:

• Glycative stress, mediated by RAGE activation or impaired glyoxalase 1, contributes to renal tubular damage and aging.
• Dysfunctional protein homeostasis due to glycative stress induces ER stress and UPR in kidney cells.
• Modulating the RAGE-AGE axis or glyoxalase 1 activity shows potential for preserving tubular homeostasis.

Conclusions:

• Targeting glycative stress pathways, particularly RAGE and glyoxalase 1, offers promising therapeutic avenues for kidney disease prevention and treatment.
• Understanding the crosstalk between glycative and ER stress is crucial for addressing protein homeostasis derangements in the kidney.
• Interventions aimed at reducing glycative stress could be beneficial for kidney aging and disease management.