Inflammaging and Complement System: A Link Between Acute Kidney Injury and Chronic Graft Damage

Area of Science:

• Nephrology
• Immunology
• Pathophysiology

Background:

• Aberrant complement system activation is implicated in various kidney diseases.
• Complement activation contributes to acute kidney injury (AKI), including delayed graft function in transplant patients.
• AKI is linked to an increased risk of chronic kidney disease (CKD), involving mechanisms like renal aging and inflammation.

Purpose of the Study:

• To review recent findings on the role of the complement system in the transition from AKI to CKD.
• To explore how complement inhibitors could prevent AKI and CKD progression.
• To discuss improving graft function in kidney transplantation.

Main Methods:

• Literature review of experimental evidence and recent findings.
• Synthesis of data on complement activation in kidney injury.
• Analysis of potential therapeutic strategies involving complement inhibition.

Main Results:

• The complement system is a critical factor in renal damage and AKI pathogenesis.
• The AKI-to-CKD transition involves complex mechanisms, including inflammation and aging.
• The precise role of complement in AKI-to-CKD transition and renal inflammaging requires further exploration.

Conclusions:

• Targeting the complement system may offer a therapeutic strategy for preventing AKI and CKD progression.
• Complement inhibitors hold potential for improving kidney graft function.
• Further research is needed to fully elucidate the complement system's role in kidney disease progression.