Alanyl-tRNA Synthetase 1 and Cyst Growth in Autosomal Dominant Polycystic Kidney Disease

The authors investigate the role of alanyl-tRNA synthetase 1 (AARS1) in the progression of autosomal dominant polycystic kidney disease (ADPKD), particularly its involvement in lactate-driven metabolic reprogramming and cyst growth. They demonstrate that genetic deletion of AARS1 in mouse models significantly delays cyst growth and preserves kidney function by modulating lactylation-dependent activation of key signaling pathways. The study identifies AARS1 as a crucial metabolic sensor that links lactate to transcriptional and epigenetic changes driving ADPKD progression.