Transformation of acute kidney injury to chronic kidney disease: the interaction between mitophagy and NLRP3 inflammasome.

Researchers have published a comprehensive review examining how acute kidney injury (AKI) can progress to chronic kidney disease (CKD), focusing on two important cellular processes: mitophagy and NLRP3 inflammasome activation. When the kidneys are suddenly injured, damaged mitochondria (the cell's energy factories) can trigger excessive inflammation through a protein complex called NLRP3 inflammasome. This inflammation contributes to cell death and tissue damage. Meanwhile, mitophagy is the body's natural cleanup system that removes damaged mitochondria to protect cells. The review explains that these two processes interact in a complex way: when mitophagy functions properly, it can reduce harmful NLRP3 activation by clearing away damaged mitochondria. However, when this protective mechanism fails, persistent inflammation and scarring occur, causing temporary kidney injury to become permanent kidney disease. This research is important for acupuncture patients because it identifies specific molecular targets that could be addressed through integrative treatment approaches. While this particular study does not directly investigate acupuncture, understanding these pathways may help explain how acupuncture's anti-inflammatory and cellular protective effects could potentially support kidney health during the critical transition period after acute injury. Traditional Chinese medicine has long recognized the kidney system's vulnerability to both acute and chronic conditions, and this modern research provides molecular insights that align with holistic treatment strategies. Patients interested in acupuncture for kidney health should consult with a licensed acupuncturist experienced in treating renal conditions.

This review article examines molecular mechanisms underlying AKI-to-CKD progression, specifically the interaction between mitophagy and NLRP3 inflammasome activation. The authors describe how NLRP3 inflammasome promotes disease progression through inflammatory responses and pyroptotic cell death in renal tubular epithelial cells, while mitophagy provides renoprotection by removing damaged mitochondria and reducing oxidative stress. Key mechanistic findings indicate that mitophagy negatively regulates NLRP3 activation through selective clearance of damaged mitochondria, establishing a feedback loop. During acute injury, mitochondrial dysfunction triggers excessive NLRP3 activation, while impaired mitophagy and persistent NLRP3 activity during the transition phase promote chronic inflammation and fibrosis. The review suggests targeting NLRP3 inflammasome inhibition and mitophagy enhancement as therapeutic strategies. From a TCM perspective, these mechanisms correlate with Kidney qi deficiency and blood stasis patterns. Practitioners should consider anti-inflammatory and mitochondrial-protective approaches when treating patients with acute or chronic kidney conditions. No specific sample sizes or effect sizes provided as this is a review article.