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Zhang 2023 Nat Commun

From Bioblast
Publications in the MiPMap
Zhang Y, Fan Y, Hu H, Zhang X, Wang Z, Wu Z, Wang L, Yu X, Song X, Xiang P, Zhang X, Wang T, Tan S, Li C, Gao L, Liang X, Li S, Li N, Yue X, Ma C (2023) ZHX2 emerges as a negative regulator of mitochondrial oxidative phosphorylation during acute liver injury.

ยป Nat Commun 14:7527. PMID: 37980429 Open Access

Zhang Yankun, Fan Yuchen, Hu Huili, Zhang Xiaohui, Wang Zehua, Wu Zhuanchang, Wang Liyuan, Yu Xiangguo, Song Xiaojia, Xiang Peng, Zhang Xiaodong, Wang Tixiao, Tan Siyu, Li Chunyang, Gao Lifen, Liang Xiaohong, Li Shuijie, Li Nailin, Yue Xuetian, Ma Chunhong (2023) Nat Commun

Abstract: Mitochondria dysfunction contributes to acute liver injuries, and mitochondrial regulators, such as PGC-1ฮฑ and MCJ, affect liver regeneration. Therefore, identification of mitochondrial modulators may pave the way for developing therapeutic strategies. Here, ZHX2 is identified as a mitochondrial regulator during acute liver injury. ZHX2 both transcriptionally inhibits expression of several mitochondrial electron transport chain genes and decreases PGC-1ฮฑ stability, leading to reduction of mitochondrial mass and OXPHOS. Loss of Zhx2 promotes liver recovery by increasing mitochondrial OXPHOS in mice with partial hepatectomy or CCl4-induced liver injury, and inhibition of PGC-1ฮฑ or electron transport chain abolishes these effects. Notably, ZHX2 expression is higher in liver tissues from patients with drug-induced liver injury and is negatively correlated with mitochondrial mass marker TOM20. Delivery of shRNA targeting Zhx2 effectively protects mice from CCl4-induced liver injury. Together, our data clarify ZHX2 as a negative regulator of mitochondrial OXPHOS and a potential target for developing strategies for improving liver recovery after acute injuries.

โ€ข Bioblast editor: Plangger M

Labels: MiParea: Respiration, Genetic knockout;overexpression 

Organism: Mouse  Tissue;cell: Liver  Preparation: Intact cells 

Coupling state: LEAK, OXPHOS, ET  Pathway: N, S, NS, ROX  HRR: Oxygraph-2k