Beneficial effects of the Rho kinase inhibitor Y27632 in murine puromycin aminonucleoside nephrosis.
Journal Article
BACKGROUND AND AIMS: Rho kinase (ROCK) inhibition reduces systemic blood pressure (BP) and decreases renal damage in animal models of kidney disease. The aim of this study was to determine if ROCK inhibition might have beneficial effects in glomerular disease processes that are independent of systemic BP. METHODS: We investigated the effects of the ROCK inhibitor Y27632 and hydralazine in murine puromycin aminonucleoside (PAN) nephrosis. RESULTS: Treatment with either Y27632 or hydralazine similarly reduced systolic BP compared to vehicle-treated controls. Seven days after treatment with PAN, albuminuria, proteinuria and effacement of podocyte foot processes were significantly reduced in Y27632- and hydralazine-treated mice compared to vehicle-treated animals. Treatment with PAN significantly reduced expression of the podocyte proteins nephrin and Neph1, and the loss of glomerular nephrin was attenuated by treatment with Y27632 but not by treatment with hydralazine. In cultured podocytes, PAN potently activated both Rho and ROCK, and PAN-induced ROCK activation was prevented by Y27632. CONCLUSIONS: The ROCK inhibitor Y27632 attenuated glomerular nephrin loss in murine PAN nephrosis independent of its effects on systemic BP.
Full Text
Duke Authors
Cited Authors
- Wang, L; Ellis, MJ; Fields, TA; Howell, DN; Spurney, RF
Published Date
- 2008
Published In
Volume / Issue
- 31 / 2
Start / End Page
- 111 - 121
PubMed ID
- 18367845
Pubmed Central ID
- 18367845
Electronic International Standard Serial Number (EISSN)
- 1423-0143
Digital Object Identifier (DOI)
- 10.1159/000121531
Language
- eng
Conference Location
- Switzerland