糖酵解与线粒体功能障碍的关系及其在肝脏疾病中的潜在价值
DOI: 10.3969/j.issn.1001-5256.2022.08.042
Association between glycolysis and mitochondrial dysfunction and its potential value in liver diseases
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摘要: 糖酵解在肝脏疾病的发生发展中发挥着重要作用。在不同肝脏疾病中,糖酵解活性显示出不同程度的增强,并与线粒体功能障碍(氧化磷酸化功能缺陷和活性氧产生)密切相关,这有助于填补由氧化磷酸化受损而导致的能量产生缺陷。因此,或可通过靶向调节有氧糖酵解中的关键因素,例如抑制酶己糖激酶2、M2型丙酮酸激酶或其他调节途径,寻求肝脏疾病的潜在治疗新方法。本文从糖酵解与肝脏疾病的相互关系出发,阐述糖酵解在肝脏疾病中的治疗意义和潜在价值,以期为肝脏疾病治疗提供新思路。Abstract: Glycolysis plays an important role in the development and progression of liver diseases and shows varying degrees of enhancement in different liver diseases, and it is closely associated with mitochondrial dysfunction (oxidative phosphorylation deficiency and reactive oxygen species production), which helps to fill energy production deficiency caused by impaired oxidative phosphorylation. Therefore, it might be possible to search for potential new therapies for liver diseases through targeted regulation of the key factors in aerobic glycolysis, such as hexokinase 2, pyruvate kinase M2, and other regulatory pathways. From the perspective of the association between glycolysis and liver diseases, this article elaborates on the therapeutic significance and potential value of glycolysis in liver diseases, in order to provide new ideas for the diagnosis and treatment of liver diseases.
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Key words:
- Liver Diseases /
- Glycolysis /
- Mitochondria
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图 1 有氧糖酵解的过程及其3种限速酶
注:HK2、PFK1和PKM2是糖酵解过程中的3种限速酶。HK2可催化葡萄糖生成6-磷酸葡萄糖,并与线粒体外膜上的VDAC1相互作用和结合,从而促进ATP的产生和抑制细胞凋亡。PFK1可催化F-6-P为FDP,其活性受PFKFB3催化产物F-2, 6-BP的调节。PKM2不仅能够催化PEP合成丙酮酸,还能够移位至细胞核内,与一些转录因子如HIF-1α、β-catenin/c-Myc、NF-κB和STAT3共同激活,促进相关靶基因的转录。
Figure 1. The process of glycolysis and its three rate limiting enzymes
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