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Wei Y, Sun H, Zhang S, Xie HQ, Li C, Zhao B, Yan B. Multi-walled carbon nanotubes inhibit potential detoxification of dioxin-mediated toxicity by blocking the nuclear translocation of aryl hydrocarbon receptor. J Hazard Mater 2022; 430:128458. [PMID: 35183049 DOI: 10.1016/j.jhazmat.2022.128458] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/24/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Despite numerous studies on effects of environmental accumulation of nano-pollutants, the influence of nanoparticles on the biological perturbations of coexisting pollutants in the environment remained unknown. The present study aimed at elucidating the perturbations of six environmental nanoparticles on detoxification of dioxin-induced toxicity at cellular level. We discovered that there was no remarkable difference in the cell uptake and intracellular distributions of these six nanoparticles. However, they have different effects on the detoxification of 2, 3, 7, 8-tetrachlorodibenzo-p-dioxin (TCDD). Multi-walled carbon nanotubes (MWCNTs) inhibited the translocation of aryl hydrocarbon receptor (AhR) from cytosol to the nucleus, leading to the downregulation of cytochrome P450 family 1 subfamily A member 1 (CYP1A1) and inhibition of detoxification function. These findings demonstrate that MWCNTs can impact the potential detoxification of dioxin-induced toxicity through modulating AhR signaling pathway. Co-exposures to MWCNTs and dioxin may cause even more toxicity than single exposure to dioxin or MWCNTs alone.
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Affiliation(s)
- Yongyi Wei
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Hainan Sun
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Shandong Vocational College of Light Industry, Zibo 255300, China.
| | - Songyan Zhang
- Engineering Laboratory of Shenzhen Natural Small Molecule Innovative Drugs, Health Science Center, Shenzhen University, Shenzhen 518000, China
| | - Heidi Qunhui Xie
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Cong Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Bin Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bing Yan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
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Wang W, Shim YK, Michalek JE, Barber E, Saleh LM, Choi BY, Wang CP, Ketchum N, Costello R, Marti G, Vogt RF, Landgren O, Calvo KR. Serum microRNA profiles among dioxin exposed veterans with monoclonal gammopathy of undetermined significance. J Toxicol Environ Health A 2020; 83:269-278. [PMID: 32285757 PMCID: PMC7908056 DOI: 10.1080/15287394.2020.1749919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Previously an increased risk for monoclonal gammopathy of undetermined significance (MGUS), a precursor of multiple myeloma (MM), was reported among Vietnam veterans exposed to Agent Orange and its contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Dysregulated expression of certain microRNAs (miRNAs) was demonstrated in MGUS and MM. Given the important role of miRNAs in cellular homeostasis, the aim of this study was to determine if there was an association between serum levels of selected miRNAs and TCDD in 47 MGUS cases identified in our previous investigation using serum specimens and exposure data archived by the Air Force Health Study (AFHS). A total of 13 miRNA levels (let-7a, let-7i, miR-16, miR-20a, miR-21, miR-34a, miR-106b, miR-146a, miR-181a, miR-192, miR-205, miR-335, and miR-361) was measured in serum stored during the 2002 AFHS follow-up and the relationship to lipid-adjusted serum TCDD levels in 1987 was determined. miR-34a showed the strongest relationship with TCDD; after age-adjustment, this positive association was more pronounced. In contrast, the other 12 miRNAs displayed absolute values of age adjusted coefficient estimates below 1.16 and non-significant p-values. The observed strong positive association between high body burdens of TCDD and miR-34a, a tumor suppressor regulated by p53, in this MGUS population warrants clarification of the TCDD-miR-34a relationship and its role in the pathogenesis of MGUS and risk for MM.
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Affiliation(s)
- Weixin Wang
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD
| | - Youn K. Shim
- Division of Toxicology and Human Health Sciences, Agency for Toxic Substances and Disease Registry, Atlanta, GA
| | - Joel E. Michalek
- Department of Population Health Sciences, University of Texas Health Science Center, San Antonio, TX
| | - Emily Barber
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD
| | - Layla M. Saleh
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD
- Hematology Section, Clinical Pathology Department, Faculty of Medicine, Mansoura University, Egypt
| | - Byeong-Yeob Choi
- Department of Population Health Sciences, University of Texas Health Science Center, San Antonio, TX
| | - Chen-Pin Wang
- Department of Population Health Sciences, University of Texas Health Science Center, San Antonio, TX
| | - Norma Ketchum
- Department of Population Health Sciences, University of Texas Health Science Center, San Antonio, TX
| | - Rene Costello
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Gerald Marti
- Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD
- Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Robert F. Vogt
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA
| | - Ola Landgren
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Katherine R. Calvo
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD
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