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Abstract Title:

Wogonin protects against cisplatin-induced acute kidney injury by targeting RIPK1-mediated necroptosis.

Abstract Source:

Lab Invest. 2018 Jan ;98(1):79-94. Epub 2017 Dec 4. PMID: 29200200

Abstract Author(s):

Xiao-Ming Meng, Hai-Di Li, Wei-Feng Wu, Patrick Ming-Kuen Tang, Gui-Ling Ren, Li Gao, Xiao-Feng Li, Yang Yang, Tao Xu, Tao-Tao Ma, Zeng Li, Cheng Huang, Lei Zhang, Xiong-Wen Lv, Jun Li

Article Affiliation:

Xiao-Ming Meng

Abstract:

Acute kidney injury (AKI), characterized by aggressive inflammatory responses and destruction of renal resident cells, can cause abrupt kidney dysfunction. To date, effective therapy for AKI is lacking. In this study, we evaluated the renoprotective effect of wogonin, an herbal active compound, using a cisplatin-induced AKI mouse model. In vivo results show that wogonin substantially suppressed the increased levels of serum creatinine and blood urea nitrogen (BUN) almost to the normal level. Wogonin also attenuated tubular damage, shown by PAS staining, electron microscopy and molecular analysis of KIM-1. In addition, wogonin suppressed kidney inflammation as indicated by a>60% decrease in macrophage infiltration, a>50% reduction in inflammatory cytokine production and inhibited NF-κB activation in the injured kidney. Mechanistically, molecular docking results show that wogonin effectively inhibited RIPK1 by occupying the ATP-binding pocket of the enzyme, which is a key regulator of necroptosis. Moreover, inhibition of RIPK1, or RIPK3, reversed the protective effects of wogonin in cisplatin-treated HK2 cells, indicating wogonin works in a RIPK1/RIPK3-dependent manner. Surprisingly, wogonin enhanced the anti-proliferative effect of cisplatin on human hepatoma HepG2 cells. Thus, our findings suggest wogonin may be a renoprotective adjuvant for cisplatin-based anticancer therapy.

Study Type : In Vitro Study

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Sayer Ji
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