Abstract Title:

Tangeretin attenuates cisplatin-induced renal injury in rats: Impact on the inflammatory cascade and oxidative perturbations.

Abstract Source:

Chem Biol Interact. 2016 Oct 25 ;258:205-13. Epub 2016 Sep 9. PMID: 27616468

Abstract Author(s):

Hany H Arab, Wafaa R Mohamed, Bassant M Barakat, El-Shaimaa A Arafa

Article Affiliation:

Hany H Arab


BACKGROUND: Despite the efficacy of cisplatin as a chemotherapeutic agent against various cancers, its clinical utility is limited by serious adverse reactions including nephrotoxicity.

AIM: The current study aims to investigate the protective potential of tangeretin, a citrus flavone with marked antioxidant actions, against cisplatin-induced renal injury in rats.

METHODS: Tangeretin was administered at 50 and 100 mg/kg p.o. for 1 week starting one day before cisplatin (7.5 mg/kg i.p.) injection. Likewise, silymarin was administered at 100 mg/kg orally. Renal function tests, histopathology, oxidative stress and inflammatory events were investigated.

RESULTS: Tangeretin mitigated the increased levels of serum creatinine, blood urea nitrogen and histopathologic alterations evoked by cisplatin. It alleviated renal oxidative stress due to cisplatin by lowering lipid peroxides, nitric oxide and Nrf2 levels with concomitant enhancement of GSH and GPx. Tangeretin also suppressed the upregulated inflammatory response seen with cisplatin treatment by downregulation of activated NF-κB p65 protein expression together with its downstream effectors e.g., iNOS and TNF-α, with restoration of the anti-inflammatory interleukin IL-10. Additionally, it down-regulated the expression of caspase-3, an apoptotic marker, thus favoring renal cell survival. Importantly, tangeretin enhancedthe cytotoxic actions of cisplatin in Hep3B and HCT-116 human cancer cell lines.

CONCLUSION: Together, these findings accentuate the dual benefit of tangeretin: mitigation of renal injury-induced by cisplatin and enhancement of its cytotoxic effects.

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