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Peanlikhit T, Honikel L, Liu J, Zimmerman T, Rithidech K. Countermeasure efficacy of apigenin for silicon-ion-induced early damage in blood and bone marrow of exposed C57BL/6J mice. LIFE SCIENCES IN SPACE RESEARCH 2022; 35:44-52. [PMID: 36336369 DOI: 10.1016/j.lssr.2022.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/09/2022] [Accepted: 05/25/2022] [Indexed: 06/16/2023]
Abstract
We investigated the countermeasure efficacy of apigenin (AP), given as a diet supplement, for radiation-induced damage in the hematopoietic tissues collected on day 7 after a total-body exposure of male C57BL/6J mice to 0 or 0.5 Gy of 260 MeV/n silicon (28Si) ions. We gave food with AP at the concentration of 20 mg/kg body weight (bw) (AP20) or without AP (AP0) to mice before and after irradiation. There were four groups of mice (six mice in each): Group 1- Control, i.e. No Radiation (0 Gy) with AP0; Group 2 - Radiation (0.5 Gy) with AP0; Group 3 - No Radiation (0 Gy) with AP20; and Group 4 - Radiation (0.5 Gy) with AP20. The complete blood count (CBC) and differential blood count were performed for each mouse. In the same mouse, an anti-clastogenic activity of AP was evaluated using the in vivo blood-erythrocyte micronucleus (MN) assay. Further in each mouse, bone marrow (BM) cells were collected and used for measuring the levels of activated nuclear factor-kappa B (NF-κB), and pro-inflammatory cytokines (i.e. tumor necrotic factor-alpha (TNF-α), interleukin-1α (IL-1α), IL-1 beta (IL-1β), and IL-6). We used the colony-forming unit assay (CFU-A) as a tool to study the countermeasure efficacy of AP against the harmful effects of 28Si ions on the proliferation of the hematopoietic stem/progenitor cells (HSPCs). Our results showed that AP is highly effective not only in the prevention of leukopenia and thrombocytopenia but also in the enhancement of erythropoiesis and the proliferation of HSPCs. We also observed the potent anti-clastogenic activity of AP given to mice as a diet supplement. Further, we found that AP is very effective in the suppression of activated NF-κB and pro-inflammatory cytokines, suggesting that AP given as a diet supplement protects mice from 28Si-ion-induced damage in the hematopoietic tissues of irradiated male C57BL/6J mice via its anti-inflammation activity.
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Affiliation(s)
- Tanat Peanlikhit
- Pathology Department, Stony Brook University, Stony Brook, NY 11794-8691, USA
| | - Louise Honikel
- Pathology Department, Stony Brook University, Stony Brook, NY 11794-8691, USA
| | - Jingxuan Liu
- Pathology Department, Stony Brook University, Stony Brook, NY 11794-8691, USA
| | - Thomas Zimmerman
- Pathology Department, Stony Brook University, Stony Brook, NY 11794-8691, USA; Division of Laboratory Animal Resources, Stony Brook University, Stony Brook, NY 11794-8611, USA
| | - Kanokporn Rithidech
- Pathology Department, Stony Brook University, Stony Brook, NY 11794-8691, USA
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Dong L, Jiang Z, Yang L, Hu F, Zheng W, Xue P, Jiang S, Andersen ME, He G, Crabbe MJC, Qu W. The genotoxic potential of mixed nitrosamines in drinking water involves oxidative stress and Nrf2 activation. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:128010. [PMID: 34929594 DOI: 10.1016/j.jhazmat.2021.128010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/26/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
Nitrosamine by-products in drinking water are designated as probable human carcinogens by the IARC, but the health effects of simultaneous exposure to multiple nitrosamines in drinking water remain unknown. Genotoxicity assays were used to assess the effects of both individual and mixed nitrosamines in finished drinking water produced by a large water treatment plant in Shanghai, China. Cytotoxicity and genotoxicity were measured at 1, 10-, 100- and 1000-fold actual concentrations by the Ames test, Comet assay, γ-H2AX assay, and the cytokinesis-block micronuclei assay; oxidative stress and the Nrf2 pathway were also assessed. Nitrosamines detected in drinking water included NDMA (36.45 ng/L), NDPA (44.68 ng/L), and NEMA (37.27 ng/L). Treatment with a mixture of the three nitrosamines at 1000-fold actual drinking-water concentration induced a doubling of revertants in Salmonella typhimurium strain TA100, DNA and chromosome damage in HepG2 cells, while 1-1000-fold concentrations of compounds applied singly lacked these effects. Treatment with 100- and 1000-fold concentrations increased ROS, GSH, and MDA and decreased SOD activity. Thus, nitrosamine mixtures showed greater genotoxic potential than that of the individual compounds. N-Acetylcysteine protected against the nitrosamine-induced chromosome damage, and Nrf2 pathway activation suggested that oxidative stress played pivotal roles in the genotoxic property of the nitrosamine mixtures.
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Affiliation(s)
- Lei Dong
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Zhiqiang Jiang
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Lili Yang
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Fen Hu
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Weiwei Zheng
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Health Technology Assessment, Ministry of Health, Fudan University, Shanghai 200032, China
| | - Peng Xue
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Songhui Jiang
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China
| | | | - Gengsheng He
- Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of the Public Health Safety, Ministry of Education, Department of Nutrition and Food Hygiene, Fudan University, Shanghai 200032, China
| | - M James C Crabbe
- Wolfson College, Oxford University, Oxford OX2 6UD, United Kingdom; Institute of Biomedical and Environmental Science & Technology, University of Bedfordshire, Luton LU1 3JU, UK
| | - Weidong Qu
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China; Center for Water and Health, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Health Technology Assessment, Ministry of Health, Fudan University, Shanghai 200032, China.
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