TVP Lab, WT/MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK.
Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", Bari, Italy.
Nat Metab. 2024 Jun;6(6):1178-1196. doi: 10.1038/s42255-024-01043-6. Epub 2024 Jun 12.
Metabolic dysfunction-associated steatotic liver disease (MASLD), previously known as non-alcoholic fatty liver disease, encompasses steatosis and metabolic dysfunction-associated steatohepatitis (MASH), leading to cirrhosis and hepatocellular carcinoma. Preclinical MASLD research is mainly performed in rodents; however, the model that best recapitulates human disease is yet to be defined. We conducted a wide-ranging retrospective review (metabolic phenotype, liver histopathology, transcriptome benchmarked against humans) of murine models (mostly male) and ranked them using an unbiased MASLD 'human proximity score' to define their metabolic relevance and ability to induce MASH-fibrosis. Here, we show that Western diets align closely with human MASH; high cholesterol content, extended study duration and/or genetic manipulation of disease-promoting pathways are required to intensify liver damage and accelerate significant (F2+) fibrosis development. Choline-deficient models rapidly induce MASH-fibrosis while showing relatively poor translatability. Our ranking of commonly used MASLD models, based on their proximity to human MASLD, helps with the selection of appropriate in vivo models to accelerate preclinical research.
代谢相关脂肪性肝病(MASLD),既往称为非酒精性脂肪性肝病,包括脂肪变性和代谢相关脂肪性肝炎(MASH),进而导致肝硬化和肝细胞癌。临床前 MASLD 研究主要在啮齿动物中进行;然而,能够最好重现人类疾病的模型尚未确定。我们对(主要为雄性)鼠模型进行了广泛的回顾性研究(代谢表型、肝组织病理学、与人类的转录组基准测试),并使用无偏 MASLD“人类接近评分”对其进行排名,以定义其代谢相关性和诱导 MASH-纤维化的能力。在这里,我们表明西方饮食与人类 MASH 密切相关;需要增加胆固醇含量、延长研究时间和/或对促进疾病的途径进行基因操作,以加剧肝损伤并加速显著的(F2+)纤维化发展。胆碱缺乏模型可迅速诱导 MASH-纤维化,同时表现出相对较差的可转化性。我们根据与人类 MASLD 的接近程度对常用 MASLD 模型进行排名,有助于选择合适的体内模型以加速临床前研究。
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