Fibroblast COX-2 Expression in the Development of Progressive Kidney Fibrosis

The authors investigate the role of fibroblast COX-2 expression in the development of progressive kidney fibrosis, particularly its interaction with macrophages. They find that selective deletion of COX-2 in fibroblasts leads to increased kidney fibrosis and a proinflammatory macrophage phenotype, suggesting that COX-2 plays a protective role against fibrosis by modulating macrophage activity during chronic kidney injury.