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神经前体细胞表达发育下调蛋白-8（NEDD8）是类泛素家族的重要成员之一，通过与底物共价结合（又称neddylation修饰），在维持细胞稳态及调节细胞周期、信号转导、转录翻译、DNA修复、肿瘤生成等方面发挥重要的作用。近年研究发现NEDD8及相关酶的功能紊乱在肝脏疾病中普遍存在，广泛参与肝炎、肝纤维化以及肝癌细胞的增殖、侵袭、凋亡与自噬等生物学过程。现重点就NEDD8在肝脏疾病中的研究进展进行综述。“,”Neural precursor cells-expressed developmentally down-regulated protein-8 (NEDD8) is one of the important members of the ubiquitin family, which plays an important role in maintaining cell stability, cell cycle regulation, signal transduction, transcription, and translation, DNA repair, and tumorigenesis through covalently bound substrates (also known as neddylation modification). In recent years, studies have found that the dysfunction of NEDD8 and its related enzymes is common in liver diseases, and is widely involved in the biological processes of hepatitis, liver fibrosis, proliferation, invasion, apoptosis and autophagy of liver cancer cells. This article focuses on the research progress of NEDD8 in liver diseases.