PMID- 31300810 OWN - NLM STAT- MEDLINE DCOM- 20200831 LR - 20210923 IS - 1460-2180 (Electronic) IS - 0143-3334 (Print) IS - 0143-3334 (Linking) VI - 41 IP - 2 DP - 2020 Apr 22 TI - A trans-fatty acid-rich diet promotes liver tumorigenesis in HCV core gene transgenic mice. PG - 159-170 LID - 10.1093/carcin/bgz132 [doi] AB - Excess consumption of trans-fatty acid (TFA), an unsaturated fatty acid containing trans double bonds, is a major risk factor for cardiovascular disease and metabolic syndrome. However, little is known about the link between TFA and hepatocellular carcinoma (HCC) despite it being a frequent form of cancer in humans. In this study, the impact of excessive dietary TFA on hepatic tumorigenesis was assessed using hepatitis C virus (HCV) core gene transgenic mice that spontaneously developed HCC. Male transgenic mice were treated for 5 months with either a control diet or an isocaloric TFA-rich diet that replaced the majority of soybean oil with shortening. The prevalence of liver tumors was significantly higher in TFA-rich diet-fed transgenic mice compared with control diet-fed transgenic mice. The TFA-rich diet significantly increased the expression of pro-inflammatory cytokines, as well as oxidative and endoplasmic reticulum stress, and activated nuclear factor-kappa B (NF-kappaB) and nuclear factor erythroid 2-related factor 2 (NRF2), leading to high p62/sequestosome 1 (SQSTM1) expression. Furthermore, the TFA diet activated extracellular signal-regulated kinase (ERK) and stimulated the Wnt/beta-catenin signaling pathway, synergistically upregulating cyclin D1 and c-Myc, driving cell proliferation. Excess TFA intake also promoted fibrogenesis and ductular reaction, presumably contributing to accelerated liver tumorigenesis. In conclusion, these results demonstrate that a TFA-rich diet promotes hepatic tumorigenesis, mainly due to persistent activation of NF-kappaB and NRF2-p62/SQSTM1 signaling, ERK and Wnt/beta-catenin pathways and fibrogenesis. Therefore, HCV-infected patients should avoid a TFA-rich diet to prevent liver tumor development. CI - (c) The Author(s) 2019. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Hu, Xiao AU - Hu X AD - Department of Metabolic Regulation, Shinshu University School of Medicine, Matsumoto, Japan. AD - Department of Pathophysiology, Hebei Medical University, Shijiazhuang, People's Republic of China. FAU - Wang, Xiaojing AU - Wang X AD - Department of Metabolic Regulation, Shinshu University School of Medicine, Matsumoto, Japan. AD - Department of Gastroenterology, Lishui Hospital, Zhejiang University School of Medicine, Lishui, Zhejiang, People's Republic of China. FAU - Jia, Fangping AU - Jia F AD - Department of Metabolic Regulation, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Tanaka, Naoki AU - Tanaka N AD - Department of Metabolic Regulation, Shinshu University School of Medicine, Matsumoto, Japan. AD - Research Center for Social Systems, Shinshu University, Matsumoto, Japan. FAU - Kimura, Takefumi AU - Kimura T AD - Department of Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Nakajima, Takero AU - Nakajima T AD - Department of Metabolic Regulation, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Sato, Yoshiko AU - Sato Y AD - Department of Molecular Pathology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Moriya, Kyoji AU - Moriya K AD - Department of Infection Control and Prevention, The University of Tokyo, Tokyo, Japan. FAU - Koike, Kazuhiko AU - Koike K AD - Department of Gastroenterology, The University of Tokyo, Tokyo, Japan. FAU - Gonzalez, Frank J AU - Gonzalez FJ AD - Laboratory of Metabolism, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA. FAU - Nakayama, Jun AU - Nakayama J AD - Department of Molecular Pathology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Aoyama, Toshifumi AU - Aoyama T AD - Department of Metabolic Regulation, Shinshu University School of Medicine, Matsumoto, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Carcinogenesis JT - Carcinogenesis JID - 8008055 RN - 0 (Dietary Fats) RN - 0 (Trans Fatty Acids) RN - 0 (Viral Core Proteins) RN - 0 (nucleocapsid protein, Hepatitis C virus) SB - IM MH - Animals MH - Carcinogenesis/pathology MH - Carcinoma, Hepatocellular/genetics/*pathology/prevention & control/virology MH - Cell Proliferation MH - Dietary Fats/administration & dosage/*adverse effects MH - Disease Models, Animal MH - Fibrosis MH - Hepacivirus/genetics/pathogenicity MH - Hepatitis C/genetics/*pathology/virology MH - Humans MH - Liver/pathology MH - Liver Neoplasms/genetics/*pathology/prevention & control/virology MH - MAP Kinase Signaling System MH - Male MH - Mice MH - Mice, Transgenic MH - Risk Factors MH - Trans Fatty Acids/administration & dosage/*adverse effects MH - Up-Regulation MH - Viral Core Proteins/genetics MH - Wnt Signaling Pathway PMC - PMC8456504 EDAT- 2019/07/14 06:00 MHDA- 2020/09/01 06:00 PMCR- 2020/07/12 CRDT- 2019/07/14 06:00 PHST- 2018/12/23 00:00 [received] PHST- 2019/06/08 00:00 [revised] PHST- 2019/07/11 00:00 [accepted] PHST- 2019/07/14 06:00 [pubmed] PHST- 2020/09/01 06:00 [medline] PHST- 2019/07/14 06:00 [entrez] PHST- 2020/07/12 00:00 [pmc-release] AID - 5531913 [pii] AID - bgz132 [pii] AID - 10.1093/carcin/bgz132 [doi] PST - ppublish SO - Carcinogenesis. 2020 Apr 22;41(2):159-170. doi: 10.1093/carcin/bgz132.