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Article Publish Status: FREE
Abstract Title:

mitigate cisplatin induced nephrotoxicity by inducing mitophagy via HIF-1α.

Abstract Source:

Oncotarget. 2017 Nov 28 ;8(61):102989-103003. Epub 2017 Aug 3. PMID: 29262539

Abstract Author(s):

Xueyan Liang, Yufang Yang, Zhenguang Huang, Jinling Zhou, Yue'e Li, Xiaobin Zhong

Article Affiliation:

Xueyan Liang

Abstract:

We investigated the role of HIF-1α in the mitigation of cisplatin-induced nephrotoxicity by(PNS) in a rat model. Serum creatinine (Scr), blood urea nitrogen (BUN) and urinary N-acetyl-β-D-glucosaminidase (NAG) levels were all elevated in cisplatin treated rats. PNS reduced Scr, BUN and NAG levels in the presence or absence of the HIF-1α inhibitor 2-methoxyestradiol (2ME2). PNS also reduced the high tubular injury scores, which corresponded to renal tubular damage in cisplatin-treated rats and which were exacerbated by 2ME2. Renal tissues from PNS-treated rats showed increased HIF-1α mRNA and nuclear localized HIF-1α protein. Moreover, PNS treatment increased BNIP3 mRNA as well as LC3-II, BNIP3 and Beclin-1 proteins and the LC3-II/LC3-I ratio in rat renal tissues. This suggested that PNS treatment enhanced HIF-1α, which in turn increased autophagy. This was confirmed in transmission electron micrographs of renal tissues that showed autophagosomes in PNS-treated renal tissues. These findings demonstrate that PNS mitigates cisplatin-induced nephrotoxicity by enhancing mitophagy via a HIF-1α/BNIP3/Beclin-1 signaling pathway.

Study Type : Animal Study

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