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Ogino N, Nagaoka K, Tomizuka K, Matsuura-Harada Y, Eitoku M, Suganuma N, Ogino K. Compromised glutathione synthesis results in high susceptibility to acetaminophen hepatotoxicity in acatalasemic mice. Food Chem Toxicol 2021; 156:112509. [PMID: 34390818 DOI: 10.1016/j.fct.2021.112509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/28/2021] [Accepted: 08/09/2021] [Indexed: 12/22/2022]
Abstract
Acatalasemia is caused by genetic defect in the catalase gene. Human achatalasemia patients are able to scavenge physiological hydrogen peroxide but are vulnerable to exogenous oxidative stress. In the present study, we used an acetaminophen-induced hepatotoxicity model in acatalasemic mice to explore this vulnerability. Interestingly, the acetaminophen-induced decrease in total glutathione levels was more prolonged in acatalasemic mice. While the subunits of glutamate-cysteine ligase, a glutathione synthase enzyme, were increased by acetaminophen in the liver of wild-type mice, their expression was lower and was further reduced by acetaminophen in acatalasemic mice. This feature was also observed in immortalized hepatocytes derived from the livers of these mice. However, when catalase was knocked down in HepG2 cells, a cultured human liver cell line, the expression of glutamate-cysteine ligase subunits was increased, suggesting that the low expression of glutamate-cysteine ligase subunits in acatalasemia may be due to other mechanism than catalase deficiency. Therefore, when other factors were investigated, it was found that transforming growth factor-β1 was up-regulated by acetaminophen in the liver of acatalasemic mice, which may inhibit the expression of glutamate-cysteine ligase subunits. The results of this study suggest a new toxic mechanism of acetaminophen-induced liver injury in patients with acatalasemia.
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Affiliation(s)
- Noriyoshi Ogino
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan; Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Kenjiro Nagaoka
- Laboratory of Hygienic Chemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
| | - Kotomi Tomizuka
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan
| | - Yuki Matsuura-Harada
- Department of Biofunction Imaging Analysis, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University,1-1-1 Tsushima Naka, Kita-ku, Okayama, 7008530, Japan
| | - Masamitsu Eitoku
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan
| | - Narufumi Suganuma
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan
| | - Keiki Ogino
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan.
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Wang DH, Ishikawa Y, Miyazaki M, Fujita H, Tsutsui K, Sano K, Masuoka N, Ogino K. A new risk assessment method for evaluation of oxidative chemicals using catalase mutant mouse primary hepatocytes. Health (London) 2011. [DOI: 10.4236/health.2011.35050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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