Abstract
Daphnetin, one of the major bioactive components isolated from Daphne odora, has been reported to have anti-inflammatory and anti-oxidative effects. Inflammation and oxidative stress have been known to play critical roles in cisplatin-induced nephrotoxicity. The purpose of this study was to investigate the protective effects of daphnetin on cisplatin-induced nephrotoxicity. The levels of blood urea nitrogen (BUN) and creatinine, as well as the kidney reactive oxygen species (ROS), and malondialdehyde (MDA) activity were measured in this study. The expression of inflammatory cytokines TNF-α and IL-1β were measured by ELISA. The results showed that daphnetin protected against cisplatin-induced nephrotoxicity by attenuating kidney histological changes, serum BUN and creatinine. Furthermore, the expression of TNF-α and IL-1β, as well as ROS and MDA in kidney tissues were decreased by daphnetin. In addition, daphnetin dose-dependently inhibited cisplatin-induced NF-κB activation and up-regulated the expression of Nrf2 and HO-1. In conclusion, the results of this study suggested that daphnetin inhibited cisplatin-induced nephrotoxicity by inhibiting NF-κB and activating Nrf2 signaling pathways. Daphnetin might be a promising agent in the treatment of kidney injury.
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