A review on gout: Looking back and looking ahead

Area of Science:

• Rheumatology
• Metabolic Diseases
• Molecular Pathology

Background:

• Gout is a metabolic disease caused by monosodium urate (MSU) crystal deposition in joints, leading to inflammation and tissue damage.
• Elevated serum urate is a key factor, regulated by renal and intestinal urate transporters like GLUT9, URAT1, and ABCG.
• Acute gouty arthritis is driven by NLRP3 inflammasome activation and IL-1β release, while neutrophil extracellular traps (NETs) aid resolution.

Purpose of the Study:

• To review the molecular pathological mechanisms underlying various clinical manifestations of gout.
• To enhance the understanding of gout's complex pathology.
• To contribute to improved diagnosis and treatment strategies for gout.

Main Methods:

• Literature review of molecular pathology in gout.
• Analysis of mechanisms involving urate transporters, inflammasomes, and NETs.
• Synthesis of current research on gout pathogenesis and clinical features.

Main Results:

• MSU crystal deposition triggers inflammation via NLRP3 inflammasome and IL-1β.
• Urate transporters (GLUT9, URAT1, ABCG) play a critical role in serum urate homeostasis.
• NETs contribute to the resolution of acute gout, but chronic gout involves tophi and joint damage.

Conclusions:

• Understanding the molecular basis of gout manifestations is crucial for effective management.
• Further research is needed to fully elucidate all clinical aspects of gout.
• This review provides insights into the molecular pathology for better therapeutic approaches.