Abstract
Renal fibrosis contributes to glomerulosclerosis and tubulointerstitial damage in chronic kidney disease. A well-established pathway implicated in the progression of fibrosis is the induction of connective tissue growth factor by transforming growth factor-beta, resulting in the accumulation of extracellular matrix proteins. Ren and colleagues demonstrate that sphingosine kinase-1 is involved in the regulation of this pathway in the glomerulus. This raises the possibility of targeting sphingosine kinase-1 to prevent fibrosis in chronic kidney disease patients.
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