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- W2974579689 endingPage "113643" @default.
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- W2974579689 abstract "Mitochondrial dysfunction was considered as a critical event involved in acetaminophen (APAP)-induced acute liver injury. Mitophagy is a type of autophagy responsible for the selective removal of damaged mitochondria. However, the exact role and possible mechanism of mitophagy in APAP-induced hepatotoxicity remains largely unknown. In this study, C57/BL6 mice were used to establish a model of acute liver injury via intraperitoneal (i.p.) injection with different doses of APAP. Furthermore, autophagy intervention experiments were achieved by the administration of rapamycin (RAPA) or chloroquine (CQ) one hour prior to dosing 300 mg/kg APAP. The activity of serum enzymes and pathological changes of APAP-treated mice were evaluated, and the critical molecules in mitophagy and NLRP3 inflammasome pathway were determined by electron microscopy, immunoblot, immunofluorescence and real-time PCR. The results demonstrated that APAP overdose resulted in an activation of PINK1/Parkin-mediated mitophagy in mice liver. Moreover, the expression of the critical molecules in NF-kB and NLRP3 inflammasome signaling pathway were markedly increased by APAP. Our further investigation found that pretreatment with RAPA protected against APAP-induced hepatoxicity in mice. Notably, RAPA significantly inhibited the activation of NF-kB and NLRP3 inflammasome and the production of IL-1β in APAP-treated mice. By contrast, pretreatment with CQ further enhanced NLRP3 inflammasome signaling pathway. Taken together, these results indicated that activation of PINK1/Parkin-mediated mitophagy protects against APAP-induced acute liver injury in mice through inhibiting inflammasome activation. Therefore, mitophagy may represent a promising therapeutic target for APAP-induced liver injury." @default.
- W2974579689 created "2019-09-26" @default.
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- W2974579689 date "2019-11-01" @default.
- W2974579689 modified "2023-10-17" @default.
- W2974579689 title "Mitophagy protects against acetaminophen-induced acute liver injury in mice through inhibiting NLRP3 inflammasome activation" @default.
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- W2974579689 doi "https://doi.org/10.1016/j.bcp.2019.113643" @default.
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