RT Journal Article T1 A Shortcut from Metabolic-Associated Fatty Liver Disease (MAFLD) to Hepatocellular Carcinoma (HCC): c-MYC a Promising Target for Preventative Strategies and Individualized Therapy. A1 Guo, Feifei A1 Estevez-Vazquez, Olga A1 Benede-Ubieto, Raquel A1 Maya-Miles, Douglas A1 Zheng, Kang A1 Gallego-Duran, Rocio A1 Rojas, Angela A1 Ampuero, Javier A1 Romero-Gomez, Manuel A1 Philip, Kaye A1 Egbuniwe, Isioma U A1 Chen, Chaobo A1 Simon, Jorge A1 Delgado, Teresa C A1 Martinez-Chantar, Maria Luz A1 Sun, Jie A1 Reissing, Johanna A1 Bruns, Tony A1 Lamas-Paz, Arantza A1 Gomez-del-Moral, Manuel A1 Woitok, Marius Maximilian A1 Vaquero, Javier A1 Regueiro, Jose R A1 Liedtke, Christian A1 Trautwein, Christian A1 Bañares, Rafael A1 Cubero, Francisco Javier A1 Nevzorova, Yulia A K1 c-myc K1 metabolic-associated fatty liver disease (MAFLD) K1 metformin K1 oncogene K1 tumorigenesis AB Metabolic-associated fatty liver disease (MAFLD) has risen as one of the leading etiologies for hepatocellular carcinoma (HCC). Oncogenes have been suggested to be responsible for the high risk of MAFLD-related HCC. We analyzed the impact of the proto-oncogene c-MYC in the development of human and murine MAFLD and MAFLD-associated HCC. alb-myctg mice were studied at baseline conditions and after administration of Western diet (WD) in comparison to WT littermates. c-MYC expression was analyzed in biopsies of patients with MAFLD and MAFLD-associated HCC by immunohistochemistry. Mild obesity, spontaneous hyperlipidaemia, glucose intolerance and insulin resistance were characteristic of 36-week-old alb-myctg mice. Middle-aged alb-myctg exhibited liver steatosis and increased triglyceride content. Liver injury and inflammation were associated with elevated ALT, an upregulation of ER-stress response and increased ROS production, collagen deposition and compensatory proliferation. At 52 weeks, 20% of transgenic mice developed HCC. WD feeding exacerbated metabolic abnormalities, steatohepatitis, fibrogenesis and tumor prevalence. Therapeutic use of metformin partly attenuated the spontaneous MAFLD phenotype of alb-myctg mice. Importantly, upregulation and nuclear localization of c-MYC were characteristic of patients with MAFLD and MAFLD-related HCC. A novel function of c-MYC in MAFLD progression was identified opening new avenues for preventative strategies. PB MDPI AG SN 2072-6694 YR 2021 FD 2021-12-31 LK http://hdl.handle.net/10668/20863 UL http://hdl.handle.net/10668/20863 LA en NO Guo F, Estévez-Vázquez O, Benedé-Ubieto R, Maya-Miles D, Zheng K, Gallego-Durán R, et al. A Shortcut from Metabolic-Associated Fatty Liver Disease (MAFLD) to Hepatocellular Carcinoma (HCC): c-MYC a Promising Target for Preventative Strategies and Individualized Therapy. Cancers (Basel). 2021 Dec 31;14(1):192. DS RISalud RD Apr 6, 2025