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Inaba Y, Hashiuchi E, Watanabe H, Kimura K, Oshima Y, Tsuchiya K, Murai S, Takahashi C, Matsumoto M, Kitajima S, Yamamoto Y, Honda M, Asahara SI, Ravnskjaer K, Horike SI, Kaneko S, Kasuga M, Nakano H, Harada K, Inoue H. The transcription factor ATF3 switches cell death from apoptosis to necroptosis in hepatic steatosis in male mice. Nat Commun 2023; 14:167. [PMID: 36690638 PMCID: PMC9871012 DOI: 10.1038/s41467-023-35804-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023] Open
Abstract
Hepatocellular death increases with hepatic steatosis aggravation, although its regulation remains unclear. Here we show that hepatic steatosis aggravation shifts the hepatocellular death mode from apoptosis to necroptosis, causing increased hepatocellular death. Our results reveal that the transcription factor ATF3 acts as a master regulator in this shift by inducing expression of RIPK3, a regulator of necroptosis. In severe hepatic steatosis, after partial hepatectomy, hepatic ATF3-deficient or -overexpressing mice display decreased or increased RIPK3 expression and necroptosis, respectively. In cultured hepatocytes, ATF3 changes TNFα-dependent cell death mode from apoptosis to necroptosis, as revealed by live-cell imaging. In non-alcoholic steatohepatitis (NASH) mice, hepatic ATF3 deficiency suppresses RIPK3 expression and hepatocellular death. In human NASH, hepatocellular damage is correlated with the frequency of hepatocytes expressing ATF3 or RIPK3, which overlap frequently. ATF3-dependent RIPK3 induction, causing a modal shift of hepatocellular death, can be a therapeutic target for steatosis-induced liver damage, including NASH.
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Affiliation(s)
- Yuka Inaba
- Metabolism and Nutrition Research Unit, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Japan
- Department of Physiology and Metabolism, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Emi Hashiuchi
- Department of Physiology and Metabolism, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Hitoshi Watanabe
- Metabolism and Nutrition Research Unit, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Japan
| | - Kumi Kimura
- Department of Biochemistry and Molecular Vascular Biology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Yu Oshima
- Department of Biochemistry and Molecular Vascular Biology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Kohsuke Tsuchiya
- Division of Immunology and Molecular Biology, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Shin Murai
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan
| | - Chiaki Takahashi
- Division of Oncology and Molecular Biology, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Michihiro Matsumoto
- Department of Molecular Metabolic Regulation, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Shigetaka Kitajima
- Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuhiko Yamamoto
- Department of Biochemistry and Molecular Vascular Biology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Masao Honda
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, Kanazawa, Japan
- Department of Clinical Laboratory Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Shun-Ichiro Asahara
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kim Ravnskjaer
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark
- Center for Functional Genomics and Tissue Plasticity (ATLAS), University of Southern Denmark, Odense M, Denmark
| | - Shin-Ichi Horike
- Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, Japan
| | - Shuichi Kaneko
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, Kanazawa, Japan
| | - Masato Kasuga
- The Institute of Medical Science, Asahi Life Foundation, Tokyo, Japan
| | - Hiroyasu Nakano
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan
| | - Kenichi Harada
- Departments of Human Pathology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Hiroshi Inoue
- Metabolism and Nutrition Research Unit, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Japan.
- Department of Physiology and Metabolism, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan.
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