Nodakenin alleviated obstructive nephropathy through blunting Snail1 induced fibrosis.

Journal of Cellular and Molecular Medicine
Jianchun LiLi Wang

Abstract

Tubulointerstitial fibrosis plays an important role in end-stage renal failure, and there are only limited therapeutic options available to preserve organ function. In the present study, we identified that nodakenin, a coumarin isolated from the roots of Angelicae gigas, functions effectively against unilateral ureteral obstruction (UUO)-induced fibrosis via down-regulating Snail1 expression. We established UUO-induced renal fibrosis in mice and then administered with nodakenin orally ata a dose of 1 and 10 mg/kg. The in-vivo results indicated that nodakenin protected obstructive nephropathy through its anti-inflammatory and anti-fibrotic properties. Nodakenin prevented the infiltration of inflammatory cells, alleviated the levels of pro-inflammatory cytokines, reduced the polarization of macrophages and down-regulating the aberrant deposition of extracellular matrix at the site of injury. Of note, nodakenin dramatically impeded Smad3, NF-κB p65 phosphorylation and Snail1 expression. In line with in vivo studies, nodakenin suppressed the expression of Snail1, Smad3 phosphorylation and fibrogenesis in TGF-β1-treated renal epithelial cells in-vitro. Furthermore, we found that the effect of nodaknin against fibrosis was reversed i...Continue Reading

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Methods Mentioned

BETA
transfection
confocal microscopy
PCR
flow cytometry

Software Mentioned

SPSS
FlowJo

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