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    Sappanone A protects mice against cisplatin-induced kidney injury.
    Int Immunopharmacol 2016 Sep 16;38:246-51. Epub 2016 Jun 16.
    Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei 050017, China. Electronic address:
    Cisplatin (CP) is an anti-cancer drug that often causes nephrotoxicity due to enhanced inflammatory response and oxidative stress. Sappanone A (SA), a homoisoflavanone isolated from the heartwood of Caesalpinia sappan, has been known to have antioxidant and anti-inflammatory effects. In this study, we aimed to investigate the protective effects and mechanism of SA on CP-induced kidney injury in mice. The results showed that treatment of SA improved CP-induced histopathalogical injury and renal dysfunction. SA also inhibited CP-induced MPO, MDA, TNF-α and IL-1β production and up-regulated the activities of SOD and GSH-PX decreased by CP. SA significantly inhibited the apoptosis rate of kidney tissues induced by CP. Furthermore, SA was found to inhibit CP-induced NF-κB activation. Treatment of SA up-regulated the expression of Nrf2 and HO-1 in a dose-dependent manner. In vitro, SA dose-dependently inhibited CP-induced TNF-α and IL-1β production and NF-κB activation in HK-2 cells. In conclusion, these results suggested that SA inhibited CP-induced kidney injury through activating Nrf2 and inhibiting NF-κB activation. SA was a potential therapeutic drug for treating CP-induced kidney injury.

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