Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10873713 | FEBS Letters | 2005 | 6 Pages |
Abstract
In this study, the effects of short-term diabetes (4 days) on rat renal glomerular cells proliferation and the potential involvement of sphingolipids in this process were investigated. Immunohistochemical analysis showed that streptozotocin (STZ)-induced diabetes promoted increased intra-glomerular hyperplasia, particularly marked for mesangial cells. This was associated with a concomitant increase in neutral ceramidase and sphingosine-kinase activities and the accumulation of the pro-proliferative sphingolipid sphingosine-1-phosphate, in glomeruli isolated from kidney cortex of STZ-treated rats. These results suggest a possible involvement of sphingolipid metabolites in the glomerular proliferative response during the early stages of diabetic nephropathy.
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Authors
Karen Geoffroy, Lysiane Troncy, Nicolas Wiernsperger, Michel Lagarde, Samer El Bawab,