1
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Zahed MA, Salehi S, Khoei MA, Esmaeili P, Mohajeri L. Risk assessment of Benzene, Toluene, Ethyl benzene, and Xylene (BTEX) in the atmospheric air around the world: A review. Toxicol In Vitro 2024; 98:105825. [PMID: 38615724 DOI: 10.1016/j.tiv.2024.105825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 02/23/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
Volatile organic compounds, such as BTEX, have been the subject of numerous debates due to their detrimental effects on the environment and human health. Human beings have had a significant role in the emergence of this situation. Even though US EPA, WHO, and other health-related organizations have set standard limits as unhazardous levels, it has been observed that within or even below these limits, constant exposure to these toxic chemicals results in negative consequences as well. According to these facts, various studies have been carried out all over the world - 160 of which are collected within this review article, so that experts and governors may come up with effective solutions to manage and control these toxic chemicals. The outcome of this study will serve the society to evaluate and handle the risks of being exposed to BTEX. In this review article, the attempt was to collect the most accessible studies relevant to risk assessment of BTEX in the atmosphere, and for the article to contain least bias, it was reviewed and re-evaluated by all authors, who are from different institutions and backgrounds, so that the insights of the article remain unbiased. There may be some limitations to consistency or precision in some points due to the original sources, however the attempt was to minimize them as much as possible.
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Affiliation(s)
| | - Samira Salehi
- Department of Health, Safety and Environment, Petropars Company, Tehran, Iran.
| | - Mahtab Akbarzadeh Khoei
- Department of Fiber and Particle Engineering, Faculty of Technology, Oulu University, Oulu, Finland
| | - Pedram Esmaeili
- Department of Fiber and Particle Engineering, Faculty of Technology, Oulu University, Oulu, Finland
| | - Leila Mohajeri
- Department of HSE, Ostovan Kish Drilling Company (OKDC), No. 148, Dastgerdi Street (Zafar), Tehran, Iran
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2
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Wu C, Yu X, Li X, An R, Li S, Liu X, Hu X, Li S, Zhou Q, Li L, Yu H, Zhao M, Chang A. Aberrant METTL14 gene expression contributes to malignant transformation of benzene-exposed myeloid cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 276:116302. [PMID: 38608381 DOI: 10.1016/j.ecoenv.2024.116302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/29/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024]
Abstract
Benzene is a known contributor to human leukaemia through its toxic effects on bone marrow cells, and epigenetic modification is believed to be a potential mechanism underlying benzene pathogenesis. However, the specific roles of N6-methyladenosine (m6A), a newly discovered RNA post-transcriptional modification, in benzene-induced hematotoxicity remain unclear. In this study, we identified self-renewing malignant proliferating cells in the bone marrow of benzene-exposed mice through in vivo bone marrow transplantation experiments and Competitive Repopulation Assay. Subsequent analysis using whole transcriptome sequencing and RNA m6A methylation sequencing revealed a significant upregulation of RNA m6A modification levels in the benzene-exposed group. Moreover, RNA methyltransferase METTL14, known as a pivotal player in m6A modification, was found to be aberrantly overexpressed in Lin-Sca-1+c-Kit+ (LSK) cells of benzene-exposed mice. Further analysis based on the GEO database showed a positive correlation between the expression of METTL14, mTOR, and GFI and benzene exposure dose. In vitro cellular experiments, employing experiments such as western blot, q-PCR, m6A RIP, and CLIP, validated the regulatory role of METTL14 on mTOR and GFI1. Mechanistically, continuous damage inflicted by benzene exposure on bone marrow cells led to the overexpression of METTL14 in LSK cells, which, in turn, increased m6A modification on the target genes' (mTOR and GFI1) RNA. This upregulation of target gene expression activated signalling pathways such as mTOR-AKT, ultimately resulting in malignant proliferation of bone marrow cells. In conclusion, this study offers insights into potential early targets for benzene-induced haematologic malignant diseases and provides novel perspectives for more targeted preventive and therapeutic strategies.
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Affiliation(s)
- Chao Wu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Xin Yu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Xiaoling Li
- Department of Minimally Invasive Interventional, Peking University Cancer Hospital (Inner Mongolia Campus) & Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Regio 010000, China
| | - Ran An
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, and Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Shengnan Li
- Cancer Center, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Xinyue Liu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Xiangting Hu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Shufei Li
- Department of Toxicology, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Qinghong Zhou
- Department of Toxicology, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Limei Li
- Department of Blood Cell Therapy, The Second Affiliated Hospital of Hainan Medical University, China
| | - Hai Yu
- Department of Minimally Invasive Interventional, Peking University Cancer Hospital (Inner Mongolia Campus) & Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Regio 010000, China.
| | - Miao Zhao
- Department of Toxicology, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
| | - Antao Chang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.
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3
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Wang F, Ye L, Jiang X, Zhang R, Chen S, Chen L, Yu H, Zeng X, Li D, Xing X, Xiao Y, Chen W. Specific CpG sites methylation is associated with hematotoxicity in low-dose benzene-exposed workers. ENVIRONMENT INTERNATIONAL 2024; 186:108645. [PMID: 38615541 DOI: 10.1016/j.envint.2024.108645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/10/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
Benzene is a broadly used industrial chemicals which causes various hematologic abnormalities in human. Altered DNA methylation has been proposed as epigenetic biomarkers in health risk evaluation of benzene exposure, yet the role of methylation at specific CpG sites in predicting hematological effects remains unclear. In this study, we recruited 120 low-level benzene-exposed and 101 control male workers from a petrochemical factory in Maoming City, Guangdong Province, China. Urinary S-phenylmercapturic acid (SPMA) in benzene-exposed workers was 3.40-fold higher than that in control workers (P < 0.001). Benzene-induced hematotoxicity was characterized by reduced white blood cells counts and nuclear division index (NDI), along with an increased DNA damage and urinary 8-hydroxy-2'-deoxyguanosine (all P < 0.05). Methylation levels of TRIM36, MGMT and RASSF1a genes in peripheral blood lymphocytes (PBLCs) were quantified by pyrosequencing. CpG site 6 of TRIM36, CpG site 2, 4, 6 of RASSF1a and CpG site 1, 3 of MGMT methylation were recognized as hot CpG sites due to a strong correlation with both internal exposure and hematological effects. Notably, integrating hot CpG sites methylation of multiple genes reveal a higher efficiency in prediction of integrative damage compared to individual genes at hot CpG sites. The negative dose-response relationship between the combined methylation of hot CpG sites in three genes and integrative damage enabled the classification of benzene-exposed individuals into high-risk or low-risk groups using the median cut-off value of the integrative index. Subsequently, a prediction model for integrative damage in benzene-exposed populations was built based on the methylation status of the identified hot CpG sites in the three genes. Taken together, these findings provide a novel insight into application prospect of specific CpG site methylation as epi-biomarkers for health risk assessment of environmental pollutants.
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Affiliation(s)
- Feier Wang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Lizhu Ye
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China; Boji Drug Evaluation Center, Boji Medical Technology Co., Ltd, Guangzhou, China
| | - Xinhang Jiang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Rui Zhang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Shen Chen
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Liping Chen
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Hongyao Yu
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiaowen Zeng
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Daochuan Li
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiumei Xing
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yongmei Xiao
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China.
| | - Wen Chen
- Department of Toxicology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China.
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Straughen JK, Loveless I, Chen Y, Burmeister C, Lamerato L, Lemke LD, O’Leary BF, Reiners JJ, Sperone FG, Levin AM, Cassidy-Bushrow AE. The Impact of Environmental Benzene, Toluene, Ethylbenzene, and Xylene Exposure on Blood-Based DNA Methylation Profiles in Pregnant African American Women from Detroit. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:256. [PMID: 38541258 PMCID: PMC10970495 DOI: 10.3390/ijerph21030256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 04/20/2024]
Abstract
African American women in the United States have a high risk of adverse pregnancy outcomes. DNA methylation is a potential mechanism by which exposure to BTEX (benzene, toluene, ethylbenzene, and xylenes) may cause adverse pregnancy outcomes. Data are from the Maternal Stress Study, which recruited African American women in the second trimester of pregnancy from February 2009 to June 2010. DNA methylation was measured in archived DNA from venous blood collected in the second trimester. Trimester-specific exposure to airshed BTEX was estimated using maternal self-reported addresses and geospatial models of ambient air pollution developed as part of the Geospatial Determinants of Health Outcomes Consortium. Among the 64 women with exposure and outcome data available, 46 differentially methylated regions (DMRs) were associated with BTEX exposure (FDR adjusted p-value < 0.05) using a DMR-based epigenome-wide association study approach. Overall, 89% of DMRs consistently exhibited hypomethylation with increasing BTEX exposure. Biological pathway analysis identified 11 enriched pathways, with the top 3 involving gamma-aminobutyric acid receptor signaling, oxytocin in brain signaling, and the gustation pathway. These findings highlight the potential impact of BTEX on DNA methylation in pregnant women.
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Affiliation(s)
- Jennifer K. Straughen
- Department of Public Health Sciences, Henry Ford Health, 1 Ford Place, Detroit, MI 48202, USA (L.L.); (A.M.L.); (A.E.C.-B.)
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
- Henry Ford Health + Michigan State University Health Sciences, Detroit, MI 48202, USA
| | - Ian Loveless
- Department of Public Health Sciences, Henry Ford Health, 1 Ford Place, Detroit, MI 48202, USA (L.L.); (A.M.L.); (A.E.C.-B.)
| | - Yalei Chen
- Department of Public Health Sciences, Henry Ford Health, 1 Ford Place, Detroit, MI 48202, USA (L.L.); (A.M.L.); (A.E.C.-B.)
| | - Charlotte Burmeister
- Department of Public Health Sciences, Henry Ford Health, 1 Ford Place, Detroit, MI 48202, USA (L.L.); (A.M.L.); (A.E.C.-B.)
| | - Lois Lamerato
- Department of Public Health Sciences, Henry Ford Health, 1 Ford Place, Detroit, MI 48202, USA (L.L.); (A.M.L.); (A.E.C.-B.)
- Henry Ford Health + Michigan State University Health Sciences, Detroit, MI 48202, USA
| | - Lawrence D. Lemke
- Department of Earth and Atmospheric Sciences, Central Michigan University, Brooks Hall 314, Mount Pleasant, MI 48859, USA;
| | - Brendan F. O’Leary
- Department of Civil and Environmental Engineering, Wayne State University, 2100 Engineering Building, Detroit, MI 48202, USA; (B.F.O.); (F.G.S.)
- Department of Biology, Wayne State University, 5047 Gullen Mall, Detroit, MI 48202, USA
| | - John J. Reiners
- Center for Urban Responses to Environmental Stressors, Wayne State University, 6135 Woodward Ave, Detroit, MI 48202, USA;
- Institute of Environmental Health Sciences, Wayne State University, 6135 Woodward Ave, Detroit, MI 48202, USA
| | - F. Gianluca Sperone
- Department of Civil and Environmental Engineering, Wayne State University, 2100 Engineering Building, Detroit, MI 48202, USA; (B.F.O.); (F.G.S.)
- Department of Environmental Science and Geology, Wayne State University, 4841 Cass Avenue, Detroit, MI 48201, USA
| | - Albert M. Levin
- Department of Public Health Sciences, Henry Ford Health, 1 Ford Place, Detroit, MI 48202, USA (L.L.); (A.M.L.); (A.E.C.-B.)
- Henry Ford Health + Michigan State University Health Sciences, Detroit, MI 48202, USA
| | - Andrea E. Cassidy-Bushrow
- Department of Public Health Sciences, Henry Ford Health, 1 Ford Place, Detroit, MI 48202, USA (L.L.); (A.M.L.); (A.E.C.-B.)
- Henry Ford Health + Michigan State University Health Sciences, Detroit, MI 48202, USA
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
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5
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Wang T, Cao Y, Xia Z, Christiani DC, Au WW. Review on novel toxicological effects and personalized health hazard in workers exposed to low doses of benzene. Arch Toxicol 2024; 98:365-374. [PMID: 38142431 DOI: 10.1007/s00204-023-03650-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/22/2023] [Indexed: 12/26/2023]
Abstract
Several recent reports indicate health hazards for workers with below occupational limit exposure to benzene (BZ). Our updated review indicates that such low exposures induced traditional as well as novel toxicity/genotoxicity, e.g., increased mitochondria copy numbers, prolongation of telomeres, impairment of DNA damage repair response (DDRR), perturbations of expression in non-coding RNAs, and epigenetic changes. These abnormalities were associated with alterations of gene expression and cellular signaling pathways which affected hematopoietic cell development, expression of apoptosis, autophagy, etc. The overarching mechanisms for induction of health risk are impaired DDRR, inhibition of tumor suppressor genes, and changes of MDM2-p53 axis activities that contribute to perturbed control for cancer pathways. Evaluation of the unusual dose-responses to BZ exposure indicates cellular over-compensation and reprogramming to overcome toxicity and to promote survival. However, these abnormal mechanisms also promote the induction of leukemia. Further investigations indicate that the current exposure limits for workers to BZ are unacceptable. Based on these studies, the new exposure limits should be less than 0.07 ppm rather than the current 1 ppm. This review also emphasizes the need to conduct appropriate bioassays, and to provide more reliable decisions on health hazards as well as on exposure limits for workers. In addition, it is important to use scientific data to provide significantly improved risk assessment, i.e., shifting from a population- to an individual-based risk assessment.
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Affiliation(s)
- Tongshuai Wang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Yiyi Cao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zhaolin Xia
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, Shanghai, 200032, China
- School of Public Health, Xinjiang Medical University, Urumqi, 830011, China
| | - David C Christiani
- Department of Environmental Health, Harvard University TH Chan School of Public Health, Harvard Medical School, Boston, MA, USA
| | - William W Au
- School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Shantou University Medical College, Shantou, 515041, China.
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6
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Tuminello S, Nguyen E, Durmus N, Alptekin R, Yilmaz M, Crisanti MC, Snuderl M, Chen Y, Shao Y, Reibman J, Taioli E, Arslan AA. World Trade Center Exposure, DNA Methylation Changes, and Cancer: A Review of Current Evidence. EPIGENOMES 2023; 7:31. [PMID: 38131903 PMCID: PMC10742700 DOI: 10.3390/epigenomes7040031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction: Known carcinogens in the dust and fumes from the destruction of the World Trade Center (WTC) towers on 9 November 2001 included metals, asbestos, and organic pollutants, which have been shown to modify epigenetic status. Epigenome-wide association analyses (EWAS) using uniform (Illumina) methodology have identified novel epigenetic profiles of WTC exposure. Methods: We reviewed all published data, comparing differentially methylated gene profiles identified in the prior EWAS studies of WTC exposure. This included DNA methylation changes in blood-derived DNA from cases of cancer-free "Survivors" and those with breast cancer, as well as tissue-derived DNA from "Responders" with prostate cancer. Emerging molecular pathways related to the observed DNA methylation changes in WTC-exposed groups were explored and summarized. Results: WTC dust exposure appears to be associated with DNA methylation changes across the genome. Notably, WTC dust exposure appears to be associated with increased global DNA methylation; direct dysregulation of cancer genes and pathways, including inflammation and immune system dysregulation; and endocrine system disruption, as well as disruption of cholesterol homeostasis and lipid metabolism. Conclusion: WTC dust exposure appears to be associated with biologically meaningful DNA methylation changes, with implications for carcinogenesis and development of other chronic diseases.
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Affiliation(s)
- Stephanie Tuminello
- Department of Population Health, NYU Grossman School of Medicine, New York, NY 10016, USA; (S.T.)
| | - Emelie Nguyen
- Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, New York, NY 10016, USA
| | - Nedim Durmus
- Department of Medicine, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Ramazan Alptekin
- Department of Medicine, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Muhammed Yilmaz
- Department of Medicine, NYU Grossman School of Medicine, New York, NY 10016, USA
| | | | - Matija Snuderl
- Department of Pathology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Yu Chen
- Department of Population Health, NYU Grossman School of Medicine, New York, NY 10016, USA; (S.T.)
- NYU Perlmutter Comprehensive Cancer Center, New York, NY 10016, USA
| | - Yongzhao Shao
- Department of Population Health, NYU Grossman School of Medicine, New York, NY 10016, USA; (S.T.)
- NYU Perlmutter Comprehensive Cancer Center, New York, NY 10016, USA
| | - Joan Reibman
- Department of Medicine, NYU Grossman School of Medicine, New York, NY 10016, USA
- Division of Environmental Medicine, Department of Medicine, NYU Grossman School of Medicine, New York University, New York, NY 10016, USA
| | - Emanuela Taioli
- Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, New York, NY 10016, USA
| | - Alan A. Arslan
- Department of Population Health, NYU Grossman School of Medicine, New York, NY 10016, USA; (S.T.)
- NYU Perlmutter Comprehensive Cancer Center, New York, NY 10016, USA
- Department of Obstetrics and Gynecology, NYU Grossman School of Medicine, New York, NY 10016, USA
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7
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Sanjari Nia AH, Reyhani Ardabili M, Sheikhvand M, Bagheri-Mohammadi S, Niknejad H, Rasoulzadeh H, Movafagh A, Kharazi Neghad S, Baniasadi M, Ashrafi Asgarabad A, Hosseini Neiresi SM, Aghaei-Zarch SM. Non-coding RNAs: A new frontier in benzene-mediated toxicity. Toxicology 2023; 500:153660. [PMID: 37924934 DOI: 10.1016/j.tox.2023.153660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/06/2023]
Abstract
One of the most frequent environmental contaminants, benzene is still widely used as an industrial solvent around the world, especially in developing nations, posing a serious occupational risk. While the processes behind the toxicity of benzene grounds are not fully understood, it is generally accepted that its metabolism, which involves one or more reactive metabolites, is crucial to its toxicity. In order to evaluate the many ways that benzene could influence gene regulation and thus have an impact on human health, new methodologies have been created. The pathophysiology of the disorder may result from epigenetic reprogramming caused by exposure to benzene, including changes in non-coding RNA (ncRNA) markers, according to recent studies. We are interested in the identification of hazardous regulatory ncRNAs, the identification of these ncRNAs' targets, and the comprehension of the significance of these interactions in the mechanisms behind benzene toxicity. Hence, the focus of recent research is on long non-coding RNAs (lncRNAs), circular RNAs (circRNAs) and microRNAs (miRNAs), and some of the more pertinent articles are also discussed.
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Affiliation(s)
- Amir Hosein Sanjari Nia
- Division of Animal Sciences, Department of Biological Sciences and Technology, University of Isfahan, Isfahan, Iran
| | - Mehran Reyhani Ardabili
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Sheikhvand
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Saeid Bagheri-Mohammadi
- Department of Physiology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hadi Niknejad
- Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Rasoulzadeh
- Department of Environmental Health Engineering, School of Public Health, Bam University of Medical Sciences, Bam, Iran; Department of Environmental Health Engineering, Maragheh University of Medical Sciences, Maragheh, Iran.
| | - Abolfazl Movafagh
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | - Mohammad Baniasadi
- Department of Epidemiology, School of Health, Bam University of Medical Sciences, Bam, Iran
| | - Ahad Ashrafi Asgarabad
- Department of Epidemiology, School of Health, Bam University of Medical Sciences, Bam, Iran
| | - Seyedeh Mobina Hosseini Neiresi
- Department of Cell and Molecular Biology, School of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Seyed Mohsen Aghaei-Zarch
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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8
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Connell ML, Wu CC, Blount JR, Haimbaugh A, Kintzele EK, Banerjee D, Baker BB, Baker TR. Adult-Onset Transcriptomic Effects of Developmental Exposure to Benzene in Zebrafish ( Danio rerio): Evaluating a Volatile Organic Compound of Concern. Int J Mol Sci 2023; 24:16212. [PMID: 38003401 PMCID: PMC10671089 DOI: 10.3390/ijms242216212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Urban environments are afflicted by mixtures of anthropogenic volatile organic compounds (VOCs). VOC sources that drive human exposure include vehicle exhaust, industrial emissions, and oil spillage. The highly volatile VOC benzene has been linked to adverse health outcomes. However, few studies have focused on the later-in-life effects of low-level benzene exposure during the susceptible window of early development. Transcriptomic responses during embryogenesis have potential long-term consequences at levels equal to or lower than 1 ppm, therefore justifying the analysis of adult zebrafish that were exposed during early development. Previously, we identified transcriptomic alteration following controlled VOC exposures to 0.1 or 1 ppm benzene during the first five days of embryogenesis using a zebrafish model. In this study, we evaluated the adult-onset transcriptomic responses to this low-level benzene embryogenesis exposure (n = 20/treatment). We identified key genes, including col1a2 and evi5b, that were differentially expressed in adult zebrafish in both concentrations. Some DEGs overlapped at the larval and adult stages, specifically nfkbiaa, mecr, and reep1. The observed transcriptomic results suggest dose- and sex-dependent changes, with the highest impact of benzene exposure to be on cancer outcomes, endocrine system disorders, reproductive success, neurodevelopment, neurological disease, and associated pathways. Due to molecular pathways being highly conserved between zebrafish and mammals, developmentally exposed adult zebrafish transcriptomics is an important endpoint for providing insight into the long term-effects of VOCs on human health and disease.
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Affiliation(s)
- Mackenzie L. Connell
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
| | - Chia-Chen Wu
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, Hsinchu City 300093, Taiwan;
| | - Jessica R. Blount
- Institute of Environmental Health Sciences, Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA; (J.R.B.); (A.H.)
| | - Alex Haimbaugh
- Institute of Environmental Health Sciences, Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA; (J.R.B.); (A.H.)
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Emily K. Kintzele
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
| | - Dayita Banerjee
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
| | - Bridget B. Baker
- IFAS Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL 32611, USA;
| | - Tracie R. Baker
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
- Institute of Environmental Health Sciences, Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA; (J.R.B.); (A.H.)
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
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Liu Z, Guo X, Zhang W, Wang J, Zhang L, Jing J, Han L, Gao A. Oxidative stress-affected ACSL1 hydroxymethylation triggered benzene hematopoietic toxicity by inflammation and senescence. Food Chem Toxicol 2023; 180:114030. [PMID: 37689099 DOI: 10.1016/j.fct.2023.114030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/02/2023] [Accepted: 09/05/2023] [Indexed: 09/11/2023]
Abstract
Long-term benzene exposure is harmful and causes hematopoietic dysfunction. However, the mechanism of benzene hematopoietic toxicity is still unclear. Acyl-CoA Synthetase Long-Chain Family Member 1 (ACSL1) has been found to participate in the progress of a variety of benign and malignant diseases, but there is no research about its effect on benzene-induced hematopoietic toxicity. Herein, We exposed C57BL/6J mice to benzene to construct an in vivo model. Human peripheral blood mononuclear cells (THP-1 cells) were treated with benzene metabolite 1, 4-BQ to construct an in vitro model. We observed that the ACSL1 expression was upregulated both in vivo and in vitro. Moreover, inhibition of ACSL1 relieved inflammation and senescence development in vitro, suggesting that ACSL1 mediates inflammation and senescence. As for the regulation mechanism of ACSL1 expression, it is closely related to hydroxymethylation modification. This was proved by hydroxymethylated DNA immunoprecipitation (hMeDIP) experiments. Furthermore, oxidative stress influenced the hydroxymethylation process. These results showed that benzene hematopoietic toxicity occurs through the induction of oxidative stress and thus the regulation of ACSL1 hydroxymethylation, which in turn mediates inflammation and senescence. Thus, this study might be of great significance in identifying and preventing benzene exposure in the early stage.
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Affiliation(s)
- Ziyan Liu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Xiaoli Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Wei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jingyu Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jiaru Jing
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lin Han
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Ai Gao
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
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Xin Y, Wang B, Zhang H, Han L, Zhou P, Ding X, Zhu B. Machine learning assessment of white blood cell counts in workers exposed to benzene: a historical cohort study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:38202-38211. [PMID: 36577823 PMCID: PMC9797385 DOI: 10.1007/s11356-022-24453-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
To explore the fitting effect of the ARIMA, GM(1,1), and RANSAC model in the changes of white blood cells (WBC) in benzene-exposed workers, and select the optimal model to predict the WBC count of workers. Among 350 employees in an aerospace process manufacturing enterprise in Nanjing, workers with 10 years of benzene exposure were selected, and used Excel software to organize the WBC data, and the ARIMA model and RANSAC model were established by R software, and the GM(1, 1) model was established by DPS software, and the magnitude of the mean absolute percentage error (MAPE) of fitting three models to WBC counts was compared. The MAPE based on the ARIMA(2,1,2) model is 6.78%, the MAPE based on the GM(1,1) model is 5.19%, and the MAPE based on the RANSAC model is 6.37%, so the GM( 1,1) model was more suitable for fitting the trend of WBC counts in benzene exposed workers in this study. The GM(1,1) model is suitable for fitting WBC counts in a small sample size and can provide a short-term prediction of WBC counts in benzene-exposed workers and provide basic information for occupational health risk assessment of workers.
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Affiliation(s)
- Yiliang Xin
- Center for Global Health, Nanjing Medical University, Nanjing, 211112, Jiangsu, China
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Jiangsu Province, No.172 Jiangsu Road, Nanjing, 210009, China
| | - Boshen Wang
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Jiangsu Province, No.172 Jiangsu Road, Nanjing, 210009, China
- Jiangsu Province Engineering Research Center of Public Health Emergency, Nanjing, 210000, Jiangsu, China
| | - Hengdong Zhang
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Jiangsu Province, No.172 Jiangsu Road, Nanjing, 210009, China
| | - Lei Han
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Jiangsu Province, No.172 Jiangsu Road, Nanjing, 210009, China
| | - Peng Zhou
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Jiangsu Province, No.172 Jiangsu Road, Nanjing, 210009, China
| | - Xuexue Ding
- Center for Global Health, Nanjing Medical University, Nanjing, 211112, Jiangsu, China
| | - Baoli Zhu
- Center for Global Health, Nanjing Medical University, Nanjing, 211112, Jiangsu, China.
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Jiangsu Province, No.172 Jiangsu Road, Nanjing, 210009, China.
- Jiangsu Province Engineering Research Center of Public Health Emergency, Nanjing, 210000, Jiangsu, China.
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11
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Sun C, Wang Z, Yang Y, Wang M, Jing X, Li G, Yan J, Zhao L, Nie L, Wang Y, Zhong Y, Liu Y. Characteristics, secondary transformation and odor activity evaluation of VOCs emitted from municipal solid waste incineration power plant. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116703. [PMID: 36399882 DOI: 10.1016/j.jenvman.2022.116703] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/26/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Volatile organic compounds (VOCs) emitted from municipal solid waste incineration power plant (MSWIPP) plays a significant role in the formation of O3 and PM2.5 and odor pollution. Field test was performed on four MSWIPPs in an area of the North China Plain. Nonmethane hydrocarbons (NMHCs) and 102 VOCs were identified and quantified. Ozone formation potential (OFP), secondary organic aerosol formation potential (SOAFP), and odor activity of the detected VOCs were evaluated. Results showed that the average concentration of NMHCs and VOCs were 1648.6 ± 1290.4 μg/m3 and 635.3 ± 588.8 μg/m3, respectively. Aromatics (62.1%), O-VOCs (16.0%), and halo hydrocarbons (10.0%) were the main VOCs groups in the MSWIPP exhaust gas. VOCs emission factor of MSWIPP was 2.43 × 103 ± 2.27 × 103 ng/g-waste. The OFP and SOAFP of MSWIPP were 960.18 ± 2158.17 μg/m3 and 1.57 ± 3.38 μg/m3, respectively. Acrolein as the dominant VOC species was the major odor contributor with a percentage of odor contribution of 65.9%. Benzene and 1,2,4-trimethylbenzene as the dominant VOC species were the main contributors of O3 formation potentials, in which 1,2,4-trimethylbenzene was also the main contributors of SOA formation potential.
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Affiliation(s)
- Chengyi Sun
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Zhiping Wang
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China.
| | - Yong Yang
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Minyan Wang
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Xianglong Jing
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Guoao Li
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Jing Yan
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Liyun Zhao
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Lei Nie
- National Engineering Research Center of Urban Environmental Pollution Control, Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, PR China
| | - Yiqi Wang
- Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8563, Japan
| | - Yuxi Zhong
- School of Materials Science&Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yang Liu
- Department of Environmental Science and Management, College of Agricultural and Environmental Sciences, The University of California, Davis, 1 Shields Ave, Davis, CA 95616, USA
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Cordiano R, Papa V, Cicero N, Spatari G, Allegra A, Gangemi S. Effects of Benzene: Hematological and Hypersensitivity Manifestations in Resident Living in Oil Refinery Areas. TOXICS 2022; 10:678. [PMID: 36355969 PMCID: PMC9697938 DOI: 10.3390/toxics10110678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Literature is teeming with publications on industrial pollution. Over the decades, the main industrial pollutants and their effects on human health have been widely framed. Among the various compounds involved, benzene plays a leading role in the onset of specific diseases. Two systems are mainly affected by the adverse health effects of benzene exposure, both acute and chronic: the respiratory and hematopoietic systems. The most suitable population targets for a proper damage assessment on these systems are oil refinery workers and residents near refining plants. Our work fits into this area of interest with the aim of reviewing the most relevant cases published in the literature related to the impairment of the aforementioned systems following benzene exposure. We perform an initial debate between the two clinical branches that see a high epidemiological expression in this slice of the population examined: residents near petroleum refinery areas worldwide. In addition, the discussion expands on highlighting the main immunological implications of benzene exposure, finding a common pathophysiological denominator in inflammation, oxidative stress, and DNA damage, thus helping to set the basis for an increasingly detailed characterization aimed at identifying common molecular patterns between the two clinical fields discussed.
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Affiliation(s)
- Raffaele Cordiano
- Department of Clinical and Experimental Medicine, School and Operative Unit of Allergy and Clinical Immunology, University of Messina, 98125 Messina, Italy
| | - Vincenzo Papa
- Department of Clinical and Experimental Medicine, School and Operative Unit of Allergy and Clinical Immunology, University of Messina, 98125 Messina, Italy
| | - Nicola Cicero
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98168 Messina, Italy
| | - Giovanna Spatari
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98168 Messina, Italy
| | - Alessandro Allegra
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy
| | - Sebastiano Gangemi
- Department of Clinical and Experimental Medicine, School and Operative Unit of Allergy and Clinical Immunology, University of Messina, 98125 Messina, Italy
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13
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Carberry CK, Koval LE, Payton A, Hartwell H, Ho Kim Y, Smith GJ, Reif DM, Jaspers I, Ian Gilmour M, Rager JE. Wildfires and extracellular vesicles: Exosomal MicroRNAs as mediators of cross-tissue cardiopulmonary responses to biomass smoke. ENVIRONMENT INTERNATIONAL 2022; 167:107419. [PMID: 35863239 PMCID: PMC9389917 DOI: 10.1016/j.envint.2022.107419] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 06/23/2022] [Accepted: 07/13/2022] [Indexed: 05/25/2023]
Abstract
INTRODUCTION Wildfires are a threat to public health world-wide that are growing in intensity and prevalence. The biological mechanisms that elicit wildfire-associated toxicity remain largely unknown. The potential involvement of cross-tissue communication via extracellular vesicles (EVs) is a new mechanism that has yet to be evaluated. METHODS Female CD-1 mice were exposed to smoke condensate samples collected from the following biomass burn scenarios: flaming peat; smoldering peat; flaming red oak; and smoldering red oak, representing lab-based simulations of wildfire scenarios. Lung tissue, bronchoalveolar lavage fluid (BALF) samples, peripheral blood, and heart tissues were collected 4 and 24 h post-exposure. Exosome-enriched EVs were isolated from plasma, physically characterized, and profiled for microRNA (miRNA) expression. Pathway-level responses in the lung and heart were evaluated through RNA sequencing and pathway analyses. RESULTS Markers of cardiopulmonary tissue injury and inflammation from BALF samples were significantly altered in response to exposures, with the greatest changes occurring from flaming biomass conditions. Plasma EV miRNAs relevant to cardiovascular disease showed exposure-induced expression alterations, including miR-150, miR-183, miR-223-3p, miR-30b, and miR-378a. Lung and heart mRNAs were identified with differential expression enriched for hypoxia and cell stress-related pathways. Flaming red oak exposure induced the greatest transcriptional response in the heart, a large portion of which were predicted as regulated by plasma EV miRNAs, including miRNAs known to regulate hypoxia-induced cardiovascular injury. Many of these miRNAs had published evidence supporting their transfer across tissues. A follow-up analysis of miR-30b showed that it was increased in expression in the heart of exposed mice in the absence of changes to its precursor molecular, pri-miR-30b, suggesting potential transfer from external sources (e.g., plasma). DISCUSSION This study posits a potential mechanism through which wildfire exposures induce cardiopulmonary responses, highlighting the role of circulating plasma EVs in intercellular and systems-level communication between tissues.
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Affiliation(s)
- Celeste K Carberry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Lauren E Koval
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alexis Payton
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Hadley Hartwell
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Yong Ho Kim
- The Center for Environmental Medicine, Asthma and Lung Biology, School of Medicine, The University of North Carolina, Chapel Hill, NC, USA
| | - Gregory J Smith
- Curriculum in Toxicology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA; Department of Genetics, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - David M Reif
- Bioinformatics Research Center, Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - Ilona Jaspers
- The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; The Center for Environmental Medicine, Asthma and Lung Biology, School of Medicine, The University of North Carolina, Chapel Hill, NC, USA; Curriculum in Toxicology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA; Department of Pediatrics, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - M Ian Gilmour
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Julia E Rager
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; The Center for Environmental Medicine, Asthma and Lung Biology, School of Medicine, The University of North Carolina, Chapel Hill, NC, USA; Curriculum in Toxicology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA.
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14
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D'Souza LC, Dwivedi S, Raihan F, Yathisha UG, Raghu SV, Mamatha BS, Sharma A. Hsp70 overexpression in Drosophila hemocytes attenuates benzene-induced immune and developmental toxicity via regulating ROS/JNK signaling pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:1723-1739. [PMID: 35301792 DOI: 10.1002/tox.23520] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/07/2021] [Accepted: 03/06/2022] [Indexed: 06/14/2023]
Abstract
Benzene, a ubiquitous environmental chemical, is known to cause immune dysfunction and developmental defects. This study aims to investigate the relation between benzene-induced immune dysfunction and developmental toxicity in a genetically tractable animal model, Drosophila melanogaster. Further, the study explored the protective role of Heat Shock Protein 70 (Hsp70) against benzene-induced immunotoxicity and subsequent developmental impact. Drosophila larvae exposed to benzene (1.0, 10.0, and 100.0 mM) were examined for total hemocyte (immune cells) count, phagocytic activity, oxidative stress, apoptosis, and their developmental delay and reduction were analyzed. Benzene exposure for 48 h reduced the total hemocytes count and phagocytic activity, along with an increase in the Reactive Oxygen Species (ROS), and lipid peroxidation in the larval hemocytes. Subsequently, JNK-dependent activation of the apoptosis (Caspase-3 dependent) was also observed. During their development, benzene exposure to Drosophila larvae led to 3 days of delay in development, and ~40% reduced adult emergence. Hsp70-overexpression in hemocytes was found to mitigate benzene-induced oxidative stress and abrogated the JNK-mediated apoptosis in hemocytes, thus restoring total hemocyte count and improving phagocytotic activity. Further, hsp70-overexpression in hemocytes also lessened the benzene-induced developmental delay (rescue of 2.5 days) and improved adult emergence (~20%) emergence, revealing a possible control of immune cells on the organism's development and survival. Overall, this study established that hsp70-overexpression in the Drosophila hemocytes confers protection against benzene-induced immune injury via regulating the ROS/JNK signaling pathway, which helps in the organism's survival and development.
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Affiliation(s)
- Leonard Clinton D'Souza
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Shiwangi Dwivedi
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Faiza Raihan
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Undiganalu Gangadharappa Yathisha
- Division of Food Safety and Nutrition, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | | | - Bangera Sheshappa Mamatha
- Division of Food Safety and Nutrition, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Anurag Sharma
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
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15
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Polyong CP, Thetkathuek A. Factors affecting prevalence of neurological symptoms among workers at gasoline stations in Rayong Province, Thailand. Environ Anal Health Toxicol 2022; 37:e2022009-0. [PMID: 35878917 PMCID: PMC9314208 DOI: 10.5620/eaht.2022009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/04/2022] [Indexed: 11/11/2022] Open
Abstract
This cross-sectional study was aimed at assessing the exposure to organic solvents and the factors affecting prevalence of neurological symptoms among workers at gas stations in Rayong Province. The sample included 200 workers at gas stations, including refueling staff, cashiers, food shop, coffee shop, and convenience store employees. Interview questionnaire included general information, work history, and neurological symptoms. Urine collection devices were used to detect organic solvents metabolized in urine, including t,t-muconic acid (t,t-MA), hippulic acid (HA), mandelic acid (MA), and methylhppuric acid (MHA).The results showed that the workers’ medians (interquartile range: IQR) of the metabolized organic solvents were as follows: t,t-MA was 393.62 (244.59) µg/g Cr, HA was 0.32 (0.14) g/g Cr, MA was 0.06 (0.02) g/g Cr, and MHA was 0.40 (0.13) g/g Cr. For prevalence of neurological symptoms, top three symptoms were headache (49.0%), dizziness (42.5%), and stress/irritability (38.5%). Working at a gas station present was neurological symptoms more than in the past was 32.5%. According to the assessment of exposure to metabolized organic solvents and factors affecting the prevalence of neurological symptoms, overtime work ≥ 6 hours and HA content greater than quartiles Q3 had an effect on neurologic symptoms (OR=2.17; 95%CI=1.23-5.10 and OR=2.15; 95%CI=1.18- 4.76, respectively). In summary, time spent working in gas stations and exposure to toluene organic solvents can cause neurological symptoms. It is recommended to reduce overtime or add breaks during work shifts or shift changes. In addition, workers should be away from the solvent.
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Affiliation(s)
- Chan Pattama Polyong
- Occupational Health and Safety Program, Faculty of Science and Technology, Bansomdejchaopraya Rajabhat University, Itsaraphab Road, Hirun Ruchi, Thon Buri, Bangkok 10600,
Thailand
| | - Anamai Thetkathuek
- Department of Industrial Hygiene and Safety, Faculty of Public Health, Burapha University, Long-Hard Bangsaen Road, Saensook Municipality, Muang, Chonburi Province 20131,
Thailand
- Correspondence:
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16
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Hermanova B, Riedlova P, Dalecka A, Jirik V, Janout V, Sram RJ. Air pollution and molecular changes in age-related diseases. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:772-790. [PMID: 32723182 DOI: 10.1080/09603123.2020.1797643] [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: 11/22/2019] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Assessment of the impact that air contaminants have on health is difficult as this is a complex mixture of substances that varies depending on the time and place. There are many studies on the association between air pollution and increased morbidity and mortality. Before the effect of polluted air is manifested at the level of the organs, an impact can be observed at the molecular level. These include some new biomarkers, like a shortening of the mean telomere length in DNA, dysregulation of gene expression caused by microRNA levels or a variation in the copy number of mitochondrial DNA. These changes may predispose individuals to premature development of age-related diseases and consequently to shortening of life. The common attribute, shared by changes at the molecular level and the development of diseases, is the presence of oxidative stress.
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Affiliation(s)
- B Hermanova
- Centre for Epidemiological Research, University of Ostrava, Ostrava, Czech Republic
- Department of Epidemiology and Public Health, University of Ostrava, Ostrava, Czech Republic
| | - P Riedlova
- Centre for Epidemiological Research, University of Ostrava, Ostrava, Czech Republic
- Department of Epidemiology and Public Health, University of Ostrava, Ostrava, Czech Republic
| | - A Dalecka
- Centre for Epidemiological Research, University of Ostrava, Ostrava, Czech Republic
- Department of Epidemiology and Public Health, University of Ostrava, Ostrava, Czech Republic
| | - V Jirik
- Centre for Epidemiological Research, University of Ostrava, Ostrava, Czech Republic
- Department of Epidemiology and Public Health, University of Ostrava, Ostrava, Czech Republic
| | - V Janout
- Centre for Epidemiological Research, University of Ostrava, Ostrava, Czech Republic
| | - R J Sram
- Centre for Epidemiological Research, University of Ostrava, Ostrava, Czech Republic
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17
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Piccardo MT, Geretto M, Pulliero A, Izzotti A. Odor emissions: A public health concern for health risk perception. ENVIRONMENTAL RESEARCH 2022; 204:112121. [PMID: 34571035 DOI: 10.1016/j.envres.2021.112121] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/26/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
The olfactory nuisance, due to the emissions of active molecules, is mainly associated with unproperly managed waste disposal and animal farming. Volatile compounds e.g., aromatics, organic and inorganic sulfide compounds, as well as nitrogen and halogenated compounds are the major contributor to odor pollution generated by waste management plants; the most important source of atmospheric ammonia is produced by livestock farming. Although an odorous compound may represent a nuisance rather than a health risk, long-term exposure to a mixture of volatile compounds may represent a risk for different diseases, including asthma, atopic dermatitis, and neurologic damage. Workers and communities living close to odor-producing facilities result directly exposed to irritant air pollutants through inhalation and for this reason the cumulative health risk assessment is recommended. Health effects are related to the concentration and exposure duration to the odorants, as well as to their irritant potency and/or biotransformation in hazardous metabolites. The health effects of a single chemical are well known, while the interactions between molecules with different functional groups have still to be extensively studied. Odor emissions are often due to airborne pollutants at levels below the established toxicity thresholds. The relationship between odor and toxicity does not always occurs but depends on the specific kind of pollutant involved. Indeed, some toxic agents does not induce odor nuisance while untoxic agents do. Accordingly, the relationship between toxicity and odor nuisance should be always analyzed in detail evaluating on the characteristics of the airborne mixture and the type of the source involved.
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Affiliation(s)
- M T Piccardo
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - M Geretto
- Department of Experimental Medicine, University of Genoa, Italy
| | - A Pulliero
- Department of Health Sciences, University of Genoa, Italy
| | - A Izzotti
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy; Department of Experimental Medicine, University of Genoa, Italy.
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Nour-Eldine W, Sayyed K, Harhous Z, Dagher-Hamalian C, Mehanna S, Achkouti D, ElKazzaz H, Khnayzer RS, Kobeissy F, Khalil C, Abi-Gerges A. Gasoline fume inhalation induces apoptosis, inflammation, and favors Th2 polarization in C57BL/6 mice. J Appl Toxicol 2022; 42:1178-1191. [PMID: 35001415 DOI: 10.1002/jat.4286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/11/2021] [Accepted: 12/23/2021] [Indexed: 11/10/2022]
Abstract
Gasoline exposure has been widely reported in the literature as being toxic to human health. However, the exact underlying molecular mechanisms triggered by its inhalation have not been thoroughly investigated. We herein present a model of sub-chronic, static gasoline vapor inhalation in adult female C57BL/6 mice. Animals were exposed daily to either gasoline vapors (0.86 g/animal/90 minutes) or ambient air for five days/week over seven consecutive weeks. At the end of the study period, toxic and molecular mechanisms, underlying the inflammatory, oxidative, and apoptotic effects triggered by gasoline vapors, were examined in the lungs and liver of gasoline exposed mice. Static gasoline exposure induced a significant increase (+21 %) in lungs/body weight ratio in gasoline-exposed (GE) versus control (CON) mice along with a pulmonary inflammation attested by histological staining. The latter was consistent with increases in the transcript levels of proinflammatory cytokines [Interleukins (ILs) 4 and 6], respectively by ~ 6-, 4-fold in the lungs of GE mice compared to CON. Interestingly, IL-10 expression was also increased by ~ 10-fold in the lungs of GE mice suggesting an attempt to counterbalance the established inflammation. Moreover, the pulmonary expression of IL-12 and TNF-α was downregulated by 2- and 4-fold, respectively, suggesting the skewing toward Th2 phenotype. Additionally, GE mice showed a significant upregulation in Bax/Bcl-2 ratio, caspases 3, 8 and 9 with no change in JNK expression in the lungs, suggesting the activation of both intrinsic and extrinsic apoptotic pathways. Static gasoline exposure over seven consecutive weeks had a minor hepatic portal inflammation attested by H&E staining along with an increase in the hepatic expression of the mitochondrial complexes in GE mice. Therefore, tissue damage biomarkers highlight the health risks associated with vapor exposure and may present potential therapeutic targets for recovery from gasoline intoxication.
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Affiliation(s)
- Wared Nour-Eldine
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Katia Sayyed
- School of Arts and Sciences, Department of Natural Sciences, Lebanese American University, Byblos, Lebanon
| | - Zeina Harhous
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Carole Dagher-Hamalian
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Stephanie Mehanna
- Department of Natural Sciences, Lebanese American University, Chouran, Beirut, Lebanon
| | - Donna Achkouti
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Hanan ElKazzaz
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Rony S Khnayzer
- Department of Natural Sciences, Lebanese American University, Chouran, Beirut, Lebanon
| | - Firas Kobeissy
- Faculty of Medicine, Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Christian Khalil
- School of Arts and Sciences, Department of Natural Sciences, Lebanese American University, Byblos, Lebanon
| | - Aniella Abi-Gerges
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
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Berthelet J, Michail C, Bui LC, Le Coadou L, Sirri V, Wang L, Dulphy N, Dupret JM, Chomienne C, Guidez F, Rodrigues-Lima F. The benzene hematotoxic and reactive metabolite 1,4-benzoquinone impairs the activity of the histone methyltransferase SETD2 and causes aberrant H3K36 trimethylation (H3K36me3). Mol Pharmacol 2021; 100:283-294. [PMID: 34266924 DOI: 10.1124/molpharm.121.000303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/28/2021] [Indexed: 11/22/2022] Open
Abstract
Human SETD2 is the unique histone methyltransferase that generates H3K36me3, an epigenetic mark that plays a key role in normal hematopoiesis. Interestingly, recurrent-inactivating mutations of SETD2 and aberrant H3K36 trimethylation (H3K36me3) are increasingly reported to be involved in hematopoietic malignancies. Benzene (BZ) is an ubiquitous environmental pollutant and carcinogen that causes leukemia. The leukemogenic properties of BZ depend on its biotransformation in the bone marrow into oxidative metabolites in particular 1,4-benzoquinone (BQ). This hematotoxic metabolite can form DNA and protein adducts that result in the damage and the alteration of cellular processes. Recent studies suggest that BZ-depend leukemogenesis could depend on epigenetic perturbations notably aberrant histone methylation. We investigated whether H3K36 trimethylation by SETD2 could be impacted by BZ and its hematotoxic metabolites. Herein, we show that BQ, the major leukemogenic metabolite of BZ, inhibits irreversibly the human histone methyltransferase SETD2 resulting in decreased H3K36 trimethylation (H3K36me3). Our mechanistic studies further indicate that the BQ-dependent inactivation of SETD2 is due to covalent binding of BQ to reactive Zn-finger cysteines within the catalytic domain of the enzyme. The formation of these quinoprotein adducts results in loss of enzyme activity and protein cross-links/oligomers. Experiments conducted in hematopoietic cells confirm that exposure to BQ results in the formation of SETD2 cross-links/oligomers and concomitant loss of H3K36me3 in cells. Taken together, our data indicate that BQ, a major hematotoxic metabolite of BZ could contribute to BZ-dependent leukemogenesis by perturbing the functions of SETD2, an histone lysine methyltransferase of hematopoietic relevance. Significance Statement Benzoquinone is a major leukemogenic metabolite of benzene. Dysregulation of histone methyltransferase is involved in hematopoietic malignancies. We found that benzoquinone irreversibly impairs SETD2, a histone H3K36 methyltransferase that plays a key role in hematopoiesis. Benzoquinone forms covalent adducts on Zn-finger cysteines within the catalytic site leading to loss of activity, protein cross-links/oligomers and concomitant decrease of H3K36me3 histone mark. Our data provide evidence that a leukemogenic metabolite of benzene can impair a key epigenetic enzyme.
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Affiliation(s)
| | | | | | | | | | - Li Wang
- The First Affiliated Hospital of Chongqing Medical University, China
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20
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Mueller S, Dennison G, Liu S. An Assessment on Ethanol-Blended Gasoline/Diesel Fuels on Cancer Risk and Mortality. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:6930. [PMID: 34203568 PMCID: PMC8297295 DOI: 10.3390/ijerph18136930] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/28/2021] [Accepted: 06/13/2021] [Indexed: 12/23/2022]
Abstract
Although cancer is traditionally considered a genetic disease, the epigenetic abnormalities, including DNA hypermethylation, histone deacetylation, and/or microRNA dysregulation, have been demonstrated as a hallmark of cancer. Compared with gene mutations, aberrant epigenetic changes occur more frequently, and cellular epigenome is more susceptible to change by environmental factors. Excess cancer risks are positively associated with exposure to occupational and environmental chemical carcinogens, including those from gasoline combustion exhausted in vehicles. Of note, previous studies proposed particulate matter index (PMI) as a measure for gasoline sooting tendency, and showed that, compared with the other molecules in gasoline, 1,2,4-Trimethylbenzene, 2-methylnaphthalene and toluene significantly contribute to PMI of the gasoline blends. Mechanistically, both epigenome and genome are important in carcinogenicity, and the genotoxicity of chemical agents has been thoroughly studied. However, less effort has been put into studying the epigenotoxicity. Moreover, as the blending of ethanol into gasoline substitutes for carcinogens, like benzene, toluene, xylene, butadiene, and polycyclic aromatic hydrocarbons, etc., a reduction of secondary aromatics has been achieved in the atmosphere. This may lead to diminished cancer initiation and progression through altered cellular epigenetic landscape. The present review summarizes the most important findings in the literature on the association between exposures to carcinogens from gasoline combustion, cancer epigenetics and the potential epigenetic impacts of biofuels.
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Affiliation(s)
- Steffen Mueller
- Energy Resources Center, The University of Illinois at Chicago, Chicago, IL 60607, USA;
| | - Gail Dennison
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA;
| | - Shujun Liu
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA;
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Epigenetic Effects of Benzene in Hematologic Neoplasms: The Altered Gene Expression. Cancers (Basel) 2021; 13:cancers13102392. [PMID: 34069279 PMCID: PMC8156840 DOI: 10.3390/cancers13102392] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/06/2021] [Accepted: 05/11/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Benzene is produced by diverse petroleum transformation processes and it is widely employed in industry despite its oncogenic effects. In fact, occupational exposure to benzene may cause hematopoietic malignancy. The leukemogenic action of benzene is particularly complex. Possible processes of onset of hematological malignancies have been recognized as a genotoxic action and the provocation of immunosuppression. However, benzene can induce modifications that do not involve alterations in the DNA sequence, the so-called epigenetics changes. Acquired epigenetic modification may also induce leukemogenesis, as benzene may alter nuclear receptors, and cause changes at the protein level, thereby modifying the function of regulatory proteins, including oncoproteins and tumor suppressor proteins. Abstract Benzene carcinogenic ability has been reported, and chronic exposure to benzene can be one of the risk elements for solid cancers and hematological neoplasms. Benzene is acknowledged as a myelotoxin, and it is able to augment the risk for the onset of acute myeloid leukemia, myelodysplastic syndromes, aplastic anemia, and lymphomas. Possible mechanisms of benzene initiation of hematological tumors have been identified, as a genotoxic effect, an action on oxidative stress and inflammation and the provocation of immunosuppression. However, it is becoming evident that genetic alterations and the other causes are insufficient to fully justify several phenomena that influence the onset of hematologic malignancies. Acquired epigenetic alterations may participate with benzene leukemogenesis, as benzene may affect nuclear receptors, and provoke post-translational alterations at the protein level, thereby touching the function of regulatory proteins, comprising oncoproteins and tumor suppressor proteins. DNA hypomethylation correlates with stimulation of oncogenes, while the hypermethylation of CpG islands in promoter regions of specific tumor suppressor genes inhibits their transcription and stimulates the onset of tumors. The discovery of the systems of epigenetic induction of benzene-caused hematological tumors has allowed the possibility to operate with pharmacological interventions able of stopping or overturning the negative effects of benzene.
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Suhaimi NF, Jalaludin J, Abu Bakar S. Deoxyribonucleic acid (DNA) methylation in children exposed to air pollution: a possible mechanism underlying respiratory health effects development. REVIEWS ON ENVIRONMENTAL HEALTH 2021; 36:77-93. [PMID: 32857724 DOI: 10.1515/reveh-2020-0065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Air pollution is a substantial environmental threat to children and acts as acute and chronic disease risk factors alike. Several studies have previously evaluated epigenetic modifications concerning its exposure across various life stages. However, findings on epigenetic modifications as the consequences of air pollution during childhood are rather minimal. This review evaluated highly relevant studies in the field to analyze the existing literature regarding exposure to air pollution, with a focus on epigenetic alterations during childhood and their connections with respiratory health effects. The search was conducted using readily available electronic databases (PubMed and ScienceDirect) to screen for children's studies on epigenetic mechanisms following either pre- or post-natal exposure to air pollutants. Studies relevant enough and matched the predetermined criteria were chosen to be reviewed. Non-English articles and studies that did not report both air monitoring and epigenetic outcomes in the same article were excluded. The review found that epigenetic changes have been linked with exposure to air pollutants during early life with evidence and reports of how they may deregulate the epigenome balance, thus inducing disease progression in the future. Epigenetic studies evolve as a promising new approach in deciphering the underlying impacts of air pollution on deoxyribonucleic acid (DNA) due to links established between some of these epigenetic mechanisms and illnesses.
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Affiliation(s)
- Nur Faseeha Suhaimi
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Juliana Jalaludin
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Occupational Health and Safety, Faculty of Public Health, Universitas Airlangga, 60115Surabaya, East Java, Indonesia
| | - Suhaili Abu Bakar
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Yue X, Ma NL, Sonne C, Guan R, Lam SS, Van Le Q, Chen X, Yang Y, Gu H, Rinklebe J, Peng W. Mitigation of indoor air pollution: A review of recent advances in adsorption materials and catalytic oxidation. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124138. [PMID: 33092884 DOI: 10.1016/j.jhazmat.2020.124138] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/07/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Indoor air pollution with toxic volatile organic compounds (VOCs) and fine particulate matter (PM2.5) is a threat to human health, causing cancer, leukemia, fetal malformation, and abortion. Therefore, the development of technologies to mitigate indoor air pollution is important to avoid adverse effects. Adsorption and photocatalytic oxidation are the current approaches for the removal of VOCs and PM2.5 with high efficiency. In this review we focus on the recent development of indoor air pollution mitigation materials based on adsorption and photocatalytic decomposition. First, we review on the primary indoor air pollutants including formaldehyde, benzene compounds, PM2.5, flame retardants, and plasticizer: Next, the recent advances in the use of adsorption materials including traditional biochar and MOF (metal-organic frameworks) as the new emerging porous materials for VOCs absorption is reviewed. We review the mechanism for mitigation of VOCs using biochar (noncarbonized organic matter partition and adsorption) and MOF together with parameters that affect indoor air pollution removal efficiency based on current mitigation approaches including the mitigation of VOCs using photocatalytic oxidation. Finally, we bring forward perspectives and directions for the development of indoor air mitigation technologies.
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Affiliation(s)
- Xiaochen Yue
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Nyuk Ling Ma
- Universiti Malaysia Terengganu, Fac Sci & Marine Environm, Terengganu 21030, Malaysia
| | - Christian Sonne
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China; Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark
| | - Ruirui Guan
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Su Shiung Lam
- Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Quyet Van Le
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
| | - Xiangmeng Chen
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China
| | - Yafeng Yang
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Haiping Gu
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
| | - Wanxi Peng
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China.
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Yang Y, Wu Q, Wang D. Epigenetic response to nanopolystyrene in germline of nematode Caenorhabditis elegans. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111404. [PMID: 33002821 DOI: 10.1016/j.ecoenv.2020.111404] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/06/2020] [Accepted: 09/21/2020] [Indexed: 05/21/2023]
Abstract
microRNAs (miRNAs) provide an epigenetic regulation mechanism for the response to environmental toxicants. mir-38, a germline miRNA, was increased by exposure to nanopolystyrene (100 nm). In this study, we further found that germline overexpression of mir-38 decreased expressions of nhl-2 encoding a miRISC cofactor, ndk-1 encoding a homolog of NM23-H1, and wrt-3 encoding a homolog of PPIL-2. Meanwhile, germline-specific RNAi knockdown of nhl-2, ndk-1, or wrt-3 caused the resistance to nanopolystyrene toxicity. Additionally, mir-38 overexpression suppressed the resistance of nematodes overexpressing germline nhl-2, ndk-1, or wrt-3 containing 3'UTR, suggesting the role of NHL-2, NDK-1, and WRT-3 as the targets of germline mir-38 in regulating the response to nanopolystyrene. Moreover, during the control of response to nanopolystyrene, EKL-1, a Tudor domain protein, was identified as the downstream target of germline NHL-2, kinase suppressors of Ras (KSR-1 and KSR-2) were identified as the downstream targets of germline NDK-1, and ASP-2, a homolog of BACE1, was identified as the downstream target of germline WRT-3. Our results raised a mir-38-mediated molecular network in the germline in response to nanopolystyrene in nematodes. Our data provided an important basis for our understanding the response of germline of organisms to nanoplastic exposure.
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Affiliation(s)
- Yunhan Yang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China.
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China; Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China; Shenzhen Ruipuxun Academy for Stem Cell & Regenerative Medicine, Shenzhen 518122, China.
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25
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Révész F, Farkas M, Kriszt B, Szoboszlay S, Benedek T, Táncsics A. Effect of oxygen limitation on the enrichment of bacteria degrading either benzene or toluene and the identification of Malikia spinosa (Comamonadaceae) as prominent aerobic benzene-, toluene-, and ethylbenzene-degrading bacterium: enrichment, isolation and whole-genome analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:31130-31142. [PMID: 32474783 PMCID: PMC7392937 DOI: 10.1007/s11356-020-09277-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/12/2020] [Indexed: 04/12/2023]
Abstract
The primary aims of this present study were to evaluate the effect of oxygen limitation on the bacterial community structure of enrichment cultures degrading either benzene or toluene and to clarify the role of Malikia-related bacteria in the aerobic degradation of BTEX compounds. Accordingly, parallel aerobic and microaerobic enrichment cultures were set up and the bacterial communities were investigated through cultivation and 16S rDNA Illumina amplicon sequencing. In the aerobic benzene-degrading enrichment cultures, the overwhelming dominance of Malikia spinosa was observed and it was abundant in the aerobic toluene-degrading enrichment cultures as well. Successful isolation of a Malikia spinosa strain shed light on the fact that this bacterium harbours a catechol 2,3-dioxygenase (C23O) gene encoding a subfamily I.2.C-type extradiol dioxygenase and it is able to degrade benzene, toluene and ethylbenzene under clear aerobic conditions. While quick degradation of the aromatic substrates was observable in the case of the aerobic enrichments, no significant benzene degradation, and the slow degradation of toluene was observed in the microaerobic enrichments. Despite harbouring a subfamily I.2.C-type C23O gene, Malikia spinosa was not found in the microaerobic enrichments; instead, members of the Pseudomonas veronii/extremaustralis lineage dominated these communities. Whole-genome analysis of M. spinosa strain AB6 revealed that the C23O gene was part of a phenol-degrading gene cluster, which was acquired by the strain through a horizontal gene transfer event. Results of the present study revealed that bacteria, which encode subfamily I.2.C-type extradiol dioxygenase enzyme, will not be automatically able to degrade monoaromatic hydrocarbons under microaerobic conditions.
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Affiliation(s)
- Fruzsina Révész
- Regional University Center of Excellence in Environmental Industry, Szent István University, Gödöllő, Hungary
- Department of Environmental Protection and Safety, Szent István University, Gödöllő, Hungary
| | - Milán Farkas
- Regional University Center of Excellence in Environmental Industry, Szent István University, Gödöllő, Hungary
- Department of Environmental Protection and Safety, Szent István University, Gödöllő, Hungary
| | - Balázs Kriszt
- Regional University Center of Excellence in Environmental Industry, Szent István University, Gödöllő, Hungary
- Department of Environmental Protection and Safety, Szent István University, Gödöllő, Hungary
| | - Sándor Szoboszlay
- Department of Environmental Protection and Safety, Szent István University, Gödöllő, Hungary
| | - Tibor Benedek
- Regional University Center of Excellence in Environmental Industry, Szent István University, Gödöllő, Hungary
- Department of Environmental Protection and Safety, Szent István University, Gödöllő, Hungary
| | - András Táncsics
- Regional University Center of Excellence in Environmental Industry, Szent István University, Gödöllő, Hungary.
- Department of Environmental Protection and Safety, Szent István University, Gödöllő, Hungary.
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26
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Zeng M, Chen S, Zhang K, Liang H, Bao J, Chen Y, Zhu S, Jiang W, Yang H, Wei Y, Guo L, Tang H. Epigenetic changes involved in hydroquinone-induced mutations. TOXIN REV 2020. [DOI: 10.1080/15569543.2020.1744660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Minjuan Zeng
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
- Laboratory Animal Center, Guangdong Medical University, Zhanjiang, China
| | | | - Ke Zhang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hairong Liang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jie Bao
- Department of Clinical Laboratory, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yuting Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Shiheng Zhu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Wei Jiang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hui Yang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yixian Wei
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Lihao Guo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
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Abplanalp WT, Wickramasinghe NS, Sithu SD, Conklin DJ, Xie Z, Bhatnagar A, Srivastava S, O'Toole TE. Benzene Exposure Induces Insulin Resistance in Mice. Toxicol Sci 2020; 167:426-437. [PMID: 30346588 DOI: 10.1093/toxsci/kfy252] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Benzene is a ubiquitous pollutant associated with hematotoxicity but its metabolic effects are unknown. We sought to determine if and how exposure to volatile benzene impacted glucose handling. We exposed wild type C57BL/6 mice to volatile benzene (50 ppm × 6 h/day) or HEPA-filtered air for 2 or 6 weeks and measured indices of oxidative stress, inflammation, and insulin signaling. Compared with air controls, we found that mice inhaling benzene demonstrated increased plasma glucose (p = .05), insulin (p = .03), and HOMA-IR (p = .05), establishing a state of insulin and glucose intolerance. Moreover, insulin-stimulated Akt phosphorylation was diminished in the liver (p = .001) and skeletal muscle (p = .001) of benzene-exposed mice, accompanied by increases in oxidative stress and Nf-κb phosphorylation (p = .025). Benzene-exposed mice also demonstrated elevated levels of Mip1-α transcripts and Socs1 (p = .001), but lower levels of Irs-2 tyrosine phosphorylation (p = .0001). Treatment with the superoxide dismutase mimetic, TEMPOL, reversed benzene-induced effects on oxidative stress, Nf-κb phosphorylation, Socs1 expression, Irs-2 tyrosine phosphorylation, and systemic glucose intolerance. These findings suggest that exposure to benzene induces insulin resistance and that this may be a sensitive indicator of inhaled benzene toxicity. Persistent ambient benzene exposure may be a heretofore unrecognized contributor to the global human epidemics of diabetes and cardiovascular disease.
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Affiliation(s)
- Wesley T Abplanalp
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292
| | - Nalinie S Wickramasinghe
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292.,Envirome Institute, University of Louisville, Louisville, Kentucky 40292.,University of Louisville Superfund Research Center, Louisville, Kentucky 40202
| | - Srinivas D Sithu
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292.,Envirome Institute, University of Louisville, Louisville, Kentucky 40292.,University of Louisville Superfund Research Center, Louisville, Kentucky 40202
| | - Daniel J Conklin
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292.,Envirome Institute, University of Louisville, Louisville, Kentucky 40292.,University of Louisville Superfund Research Center, Louisville, Kentucky 40202
| | - Zhengzhi Xie
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292.,Envirome Institute, University of Louisville, Louisville, Kentucky 40292.,University of Louisville Superfund Research Center, Louisville, Kentucky 40202
| | - Aruni Bhatnagar
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292.,Envirome Institute, University of Louisville, Louisville, Kentucky 40292.,University of Louisville Superfund Research Center, Louisville, Kentucky 40202
| | - Sanjay Srivastava
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292.,Envirome Institute, University of Louisville, Louisville, Kentucky 40292.,University of Louisville Superfund Research Center, Louisville, Kentucky 40202
| | - Timothy E O'Toole
- Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40292.,Envirome Institute, University of Louisville, Louisville, Kentucky 40292.,University of Louisville Superfund Research Center, Louisville, Kentucky 40202
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Aerobic Degradation of Benzene by Escherichia spp. from Petroleum-contaminated Sites in Kolkata, West Bengal, India. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.4.51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Jiang R, Huang H, Lian Z, Hu Z, Lloyd RS, Fang D, Li Y, Xian H, Yuan J, Sha Y, Wang S, Hu D. Exosomal miR-221 derived from hydroquinone-transformed malignant human bronchial epithelial cells is involved in cell viability of recipient cells. J Appl Toxicol 2019; 40:224-233. [PMID: 31468561 DOI: 10.1002/jat.3898] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/01/2019] [Accepted: 08/01/2019] [Indexed: 12/16/2022]
Abstract
miR-221, an oncogenic microRNA, can promote cell proliferation and is highly expressed in various types of tumors. However, the role of exosomal miR-221 in benzene-caused carcinogenesis remains elusive. Our study was designed to investigate whether exosomes secreted by the hydroquinone (HQ; an active metabolite of benzene)-transformed malignant cells can transmit miR-221 to normal recipient cells and its possible effects on cell viability. Our investigation revealed that expression levels of miR-221 were significantly increased in HQ-transformed malignant cells relative to normal controls. Furthermore, exposure of control cells to exosomes that were derived from HQ-transformed malignant cells increased miR-221 levels and promoted their proliferation. Analyses of the biological potency of exosomes derived from HQ-transformed malignant cells in which miR-221 levels were decreased using an inhibitor, showed that both miR-221 levels and proliferation of recipient cells were decreased, but still were higher than those of normal 16HBE cells. Our study indicates that exosomal miR-221 derived from HQ-transformed malignant human bronchial epithelial cells is involved in the proliferation of recipient cells.
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Affiliation(s)
- Ran Jiang
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Haoyu Huang
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Zhenwei Lian
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Zuqing Hu
- School of Medicine, Jiamusi University, Jiamusi, China
| | - R Stephen Lloyd
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, Oregon
| | - Daokui Fang
- Department of Environmental Health, Center for Disease Control and Prevention of Shenzhen City, Shenzhen, China
| | - Yanfeng Li
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Hongyi Xian
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Jianhui Yuan
- Nanshan District Center for Disease Control and Prevention, Shenzhen, China
| | - Yan Sha
- Shenzhen Prevention and Treatment Center for Occupational Disease, Institute of Occupational Disease, Shenzhen, China
| | - Sanming Wang
- Faculty of Health Sciences, University of Macau, Taipa, Macau, SAR, China
| | - Dalin Hu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
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Ferrari L, Pavanello S, Bollati V. Molecular and epigenetic markers as promising tools to quantify the effect of occupational exposures and the risk of developing non-communicable diseases. LA MEDICINA DEL LAVORO 2019; 110:168-190. [PMID: 31268425 PMCID: PMC7812541 DOI: 10.23749/mdl.v110i3.8538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 06/06/2019] [Indexed: 12/18/2022]
Abstract
Non-communicable diseases (NCDs) are chronic diseases that are by far the leading cause of death in the world. Many occupational hazards, together with social, economic and demographic factors, have been associated to NCDs development. Genetic susceptibility or environmental exposures alone are not usually sufficient to explain the pathogenesis of NCDs, but can be integrated in a more complex scenario that can result in pathological phenotypes. Epigenetics is a crucial component of this scenario, as its changes are related to specific exposures, therefore potentially able to display the effects of environment on the genome, filling the gap between genetic asset and environment in explaining disease development. To date, the most promising biomarkers have been assessed in occupational cohorts as well as in case/control studies and include DNA methylation, histone modifications, microRNA expression, extracellular vesicles, telomere length, and mitochondrial alterations.
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Affiliation(s)
- Luca Ferrari
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, via San Barnaba 8, 20122 Milan, Italy..
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Jamebozorgi I, Majidizadeh T, Pouryagoub G, Mahjoubi F. Aberrant DNA Methylation of Two Tumor Suppressor Genes, p14ARF and p15INK4b, after Chronic Occupational Exposure to Low Level of Benzene. THE INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE 2018; 9:145-151. [PMID: 29995020 PMCID: PMC6466977 DOI: 10.15171/ijoem.2018.1317] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 05/03/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Exposure to benzene would be associated with many diseases including leukemia. Epigenetic alterations seem to be among the main mechanisms involved. OBJECTIVE To determine if chronic occupational exposure to low level of benzene would be associated with DNA methylation. METHODS Global DNA methylation and promoter-specific methylation of the two tumor suppressor genes, p14ARF and p15INK4b, were assessed employing methylation-specific PCR using the DNA extracted from 40 petrochemical workers exposed to ambient benzene levels of <1 ppm, and 31 office workers not exposed to benzene or its derivatives. RESULTS While an increase in global DNA methylation of 5% in p14ARF (p=0.501) and 28% in p15INK4b (p=0.02) genes was observed in the exposed group, no hypermethylation in either of the studied genes was observed in the unexposed group. No significant association was found between the frequency of aberrant methylation and either of age, work experience, and smoking habit in the exposed group. CONCLUSION Chronic occupational exposure to lower than the permissible exposure limit of benzene may still result in DNA methylation of tumor suppressor genes that may ultimately lead to development of cancer.
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Affiliation(s)
- Iraj Jamebozorgi
- Petroleum Industry Health Organization, Assaluyeh, Bushehr, Iran
| | - Tayebeh Majidizadeh
- Department of Medical Biotechnology, National Institute for Genetic Engineering and Biotechnology, Tehran, Iran
| | - Gholamreza Pouryagoub
- Center for Research on Occupational Diseases (CROD), School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Frouzandeh Mahjoubi
- Department of Medical Biotechnology, National Institute for Genetic Engineering and Biotechnology, Tehran, Iran.
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Methamphetamine (MA) Use Induces Specific Changes in LINE-1 Partial Methylation Patterns, Which Are Associated with MA-Induced Paranoia: a Multivariate and Neuronal Network Study. Mol Neurobiol 2018; 56:4258-4272. [PMID: 30302724 DOI: 10.1007/s12035-018-1371-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/27/2018] [Indexed: 12/29/2022]
Abstract
The use of psychoactive substances, including methamphetamine (MA) may cause changes in DNA methylation. The aim of this study was to examine the effects of MA use on long interspersed element-1 (LINE-1) methylation patterns in association with MA-induced paranoia. This study recruited 123 normal controls and 974 MA users, 302 with and 672 without MA-induced paranoia. The Semi-Structured Assessment for Drug Dependence and Alcoholism was used to assess demographic and substance use variables. Patterns of LINE-1 methylation were assessed in peripheral blood mononuclear cells and a combined bisulfite restriction analysis (COBRA) was used to estimate overall LINE-1 methylation (mC) while COBRA classified LINE-alleles into four patterns based on the methylation status of two CpG dinucleotides on each strand from 5' to 3', namely two methylated (mCmC) and two unmethylated (uCuC) CpGs and two types of partially methylated loci (mCuC that is 5'm with 3'u and uCmC that is 5'u with 3'm CpGs). MA users showed higher % mCuC and % mCuC + uCmC levels than controls. Use of solvents and opioids, but not cannabis and alcohol dependence, significantly lowered % uCmC levels, while current smoking significantly increased % uCuC levels. MA-induced paranoia was strongly associated with changes in LINE-1 partial methylation patterns (lowered % uCmC), heavy MA use, lower age at onset of MA use, and alcohol dependence. Women who took contraceptives showed significantly lower LINE-1 % mC and % mCmC and higher % uCuC levels than women without contraceptive use and men. The results show that MA-induced changes in LINE-1 partial methylation patterns are associated with MA-induced paranoia and could explain in part the pathophysiology of this type of psychosis. It is argued that MA-induced neuro-oxidative pathways may have altered LINE-1 partial methylation patterns, which in turn may regulate neuro-oxidative and immune pathways, which may increase risk to develop MA-induced paranoia.
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Li J, Xing X, Zhang X, Liang B, He Z, Gao C, Wang S, Wang F, Zhang H, Zeng S, Fan J, Chen L, Zhang Z, Zhang B, Liu C, Wang Q, Lin W, Dong G, Tang H, Chen W, Xiao Y, Li D. Enhanced H3K4me3 modifications are involved in the transactivation of DNA damage responsive genes in workers exposed to low-level benzene. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 234:127-135. [PMID: 29175474 DOI: 10.1016/j.envpol.2017.11.042] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 11/03/2017] [Accepted: 11/09/2017] [Indexed: 05/18/2023]
Abstract
In this study, we explore whether altered global histone modifications respond to low-level benzene exposure as well as their association with the hematotoxicity. We recruited 147 low-level benzene-exposed workers and 122 control workers from a petrochemical factory in Maoming City, Guangdong Province, China. The internal exposure marker level, urinary S-phenylmercapturic acid (SPMA), in benzene-exposed workers was 1.81-fold higher than that of the controls (P < 0.001). ELISA method was established to examine the specific histone modifications in human peripheral blood lymphocytes (PBLCs) of workers. A decrease in the counts of white blood cells (WBC), neutrophils, lymphocytes, and monocytes appeared in the benzene-exposed group (all P < 0.05) compared to the control group. Global trimethylated histone 3 lysine 4 (H3K4me3) modification was enhanced in the benzene-exposed group (P < 0.05) and was positively associated with the concentration of urinary SPMA (β = 0.103, P = 0.045) and the extent of DNA damage (% Tail DNA: β = 0.181, P = 0.022), but was negatively associated with the leukocyte count (WBC: β = -0.038, P = 0.023). The in vitro study revealed that H3K4me3 mark was enriched in the promoters of several DNA damage responsive (DDR) genes including CRY1, ERCC2, and TP53 in primary human lymphocytes treated with hydroquinone. Particularly, H3K4me3 modification was positively correlated with the expression of CRY1 in the PBLCs of benzene-exposed workers. These observations indicate that H3K4me3 modification might mediate the transcriptional regulation of DDR genes in response to low-dose benzene exposure.
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Affiliation(s)
- Jie Li
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiumei Xing
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xinjie Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Boxuan Liang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zhini He
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Chen Gao
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Shan Wang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Fangping Wang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Haiyan Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Shan Zeng
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Junling Fan
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Liping Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zhengbao Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Bo Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Caixia Liu
- Shantou Medical College, Shantou University, Guangdong, China
| | - Qing Wang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Weiwei Lin
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Guanghui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Huanwen Tang
- Department of Toxicology, School of Public Health, Guangdong Medical University, Guangdong, China
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yongmei Xiao
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Daochuan Li
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
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Orru H, Idavain J, Pindus M, Orru K, Kesanurm K, Lang A, Tomasova J. Residents' Self-Reported Health Effects and Annoyance in Relation to Air Pollution Exposure in an Industrial Area in Eastern-Estonia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E252. [PMID: 29393920 PMCID: PMC5858321 DOI: 10.3390/ijerph15020252] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/22/2018] [Accepted: 01/31/2018] [Indexed: 12/13/2022]
Abstract
Eastern Estonia has large oil shale mines and industrial facilities mainly focused on electricity generation from oil shale and shale oil extraction, which produce high air pollution emissions. The "Study of the health impact of the oil shale sector-SOHOS" was aimed at identifying the impacts on residents' health and annoyance due to the industrial processing. First, a population-wide survey about health effects and annoyance was carried out. Second, the total and oil shale sectors' emitted concentrations of benzene, phenol, and PM2.5 were modelled. Third, the differences between groups were tested and relationships between health effects and environmental pollution studied using multiple regression analysis. Compared to the control groups from non-industrial areas in Tartu or Lääne-Viru, residents of Ida-Viru more frequently (p < 0.05) reported wheezing, chest tightness, shortness of breath, asthma attacks, a long-term cough, hypertension, heart diseases, myocardial infarction, stroke, and diabetes. All health effects except asthma were reported more frequently among non-Estonians. People living in regions with higher levels of PM2.5, had significantly higher odds (p < 0.05) of experiencing chest tightness (OR = 1.13, 95% CI 1.02-1.26), shortness of breath (1.16, 1.03-1.31) or an asthma attack (1.22, 1.04-1.42) during the previous year. People living in regions with higher levels of benzene had higher odds of experiencing myocardial infarction (1.98, 1.11-3.53) and with higher levels of phenol chest tightness (1.44, 1.03-2.00), long-term cough (1.48, 1.06-2.07) and myocardial infarction (2.17, 1.23-3.83). The prevalence of adverse health effects was also higher among those who had been working in the oil shale sector. Next to direct health effects, up to a quarter of the residents of Ida-Viru County were highly annoyed about air pollution. Perceived health risk from air pollution increased the odds of being annoyed. Annoyed people in Ida-Viru had significantly higher odds of experiencing respiratory symptoms during the last 12 months, e.g., wheezing (2.30, 1.31-4.04), chest tightness (2.88, 1.91-4.33 or attack of coughing (1.99, 1.34-2.95).
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Affiliation(s)
- Hans Orru
- Institute of Family Medicine and Public Health, Faculty of Medicine, University of Tartu, Ravila 19, 50411 Tartu, Estonia.
- Department of Public Health and Clinical Medicine, Umea University, SE-901 87 Umea, Sweden.
| | - Jane Idavain
- Institute of Family Medicine and Public Health, Faculty of Medicine, University of Tartu, Ravila 19, 50411 Tartu, Estonia.
- National Institute for Health Development, Hiiu 14, 11619 Tallinn, Estonia.
| | - Mihkel Pindus
- Institute of Family Medicine and Public Health, Faculty of Medicine, University of Tartu, Ravila 19, 50411 Tartu, Estonia.
| | - Kati Orru
- Institute of Social Sciences, University of Tartu, Lossi 36, 51003 Tartu, Estonia.
| | - Kaisa Kesanurm
- Estonian Environmental Research Centre, Marja 4d, 10614 Tallinn, Estonia.
| | - Aavo Lang
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Ravila 19, 50411 Tartu, Estonia.
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Alabi OA, Esan BE, Sorungbe AA. Genetic, Reproductive and Hematological Toxicity Induced in Mice Exposed to Leachates from Petrol, Diesel and Kerosene Dispensing Sites. J Health Pollut 2017; 7:58-70. [PMID: 30524841 PMCID: PMC6221447 DOI: 10.5696/2156-9614-7.16.58] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/20/2017] [Indexed: 04/30/2023]
Abstract
BACKGROUND With a population of over 165,000,000, growing at an average rate of 2.7% per annum and an economic growth rate of about 5.7% in the past five years, the market for refined petroleum products in Nigeria is growing. As a result, the number of filling stations is increasing. OBJECTIVES The present study evaluated the reproductive and genetic toxicity of simulated leachate of soil from petrol, diesel and kerosene dispensing sites in a filling station using the murine sperm abnormality test, sperm count and bone marrow micronucleus assay. METHODS Simulated leachate of soil collected from petrol, diesel and kerosene dispensing sites in a filling station was intraperitoneally administered to mice at different concentrations. Bone marrow micronucleus assay was carried out after 5-days exposure, while sperm morphology assay was carried out 35 days from the first day of exposure. Alterations to hematological parameters were evaluated and physico-chemical analysis of the leachate samples was also carried out. RESULTS The results showed a significant (p<0.05) concentration-dependent increase in abnormal sperm cells and decrease in mean sperm count in all the samples tested. Increased induction of micronucleated polychromatic erythrocytes was observed in the exposed mice. Hematological analysis showed a significant (p<0.05) increase in the values of white blood cell count (WBC), lymphocytes, neutrophils, monocytes, eosinophils and mean corpuscular volume (MCV), while a significant (p<0.05) reduction in basophils, hemoglobin, mean corpuscular hemoglobin (MCH), packed cell volume and mean corpuscular hemoglobin concentration (MCHC) values were observed. DISCUSSION In the present study, simulated leachates from soil obtained from petrol, diesel and kerosene dispensing sites were shown to cause genomic disruptions in germ and somatic cells, and hematotoxicity in an animal model. These observed reproductive, genetic and hemato-toxicities are believed to be caused by the presence of lead, copper, mercury, polycyclic aromatic hydrocarbons, and benzene in the samples. CONCLUSIONS This study showed the negative impact of petroleum products in the contamination of soil, with a capability of inducing genetic damage in somatic and germ cells of exposed plants and animals. ETHICS APPROVAL The study was approved by the ethical committee of the Federal University of Technology, Akure, Ondo State, Nigeria.
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Affiliation(s)
- Okunola A. Alabi
- Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria
| | - Babatunde E. Esan
- Department of Basic Sciences, Babcock University, Ilisan Remo, Ogun State, Nigeria
| | - Adewale A. Sorungbe
- Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria
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Adverse Health Complaints of Adults Exposed to Benzene After a Flaring Disaster at the BP Refinery Facility in Texas City, Texas. Disaster Med Public Health Prep 2017; 12:232-240. [PMID: 28877779 DOI: 10.1017/dmp.2017.59] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE The objective of this study was to assess the adverse health symptoms experienced by adult subjects who were exposed to benzene after a flaring disaster at the BP refinery in Texas City, Texas. METHODS A total of 2162 adults aged 18 years or older and exposed to benzene were included. Using the patients' medical charts, we collected and analyzed data on health complaints as well as the patients' serum levels of beta-2-microglobulin and urinary excretion of phenol. RESULTS A total of 11,368 health symptom complaints were reported in 2162 adults exposed to benzene. Neurological symptoms occurred most frequently (174%), followed upper respiratory symptoms (115%), cough (31%), painful joints (30%), cardiac symptoms (28%), dermatological symptoms (28%), gastrointestinal symptoms (27%), diarrhea (25%), vision symptoms (21%), and nausea/vomiting (19%). Logistic regression analysis indicated that urinary symptoms (R2=0.65) and painful joints (R2=0.44) were positively associated with increasing age in benzene-exposed subjects. CONCLUSION Adult subjects exposed to benzene experience a range of adverse health symptoms and an altered profile of urinary phenol, thus indicating they are at high risk of developing serious future health complications. (Disaster Med Public Health Preparedness. 2018;12:232-240).
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Fenga C, Gangemi S, Teodoro M, Rapisarda V, Golokhvast K, Docea AO, Tsatsakis AM, Costa C. 8-Hydroxydeoxyguanosine as a biomarker of oxidative DNA damage in workers exposed to low-dose benzene. Toxicol Rep 2017; 4:291-295. [PMID: 28959652 PMCID: PMC5615153 DOI: 10.1016/j.toxrep.2017.05.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/23/2017] [Accepted: 05/27/2017] [Indexed: 01/25/2023] Open
Abstract
Gasoline station attendants have higher urinary t,t,-MA and 8-OHdG levels. There is strong correlation between 8-OHdG and benzene exposure level. 8-OHdG levels are significantly correlated also with job seniority. Low-level chronic exposure to benzene can determine oxidative damage on DNA.
The present study aims to investigate the relation between exposure to low-dose benzene and the occurrence of oxidative DNA damage in gasoline station workers, as well as the possible role of interfering or confounding factors. Urine levels of 8-OHdG were evaluated by a competitive immunoassay in a group of 80 men, employed in gasoline stations located in East Sicily and compared with a control group (n = 63) of male office employees not occupationally exposed to benzene. Information regarding socio-demographic characteristics, lifestyle and job-related records were provided through a questionnaire. Significantly higher (p < 0.05) urinary t,t,-MA and 8-OHdG levels were observed in gasoline station attendants compared to subjects not exposed to benzene. Pearson’s test demonstrated a strong correlation (r = 0.377, p < 0.001) between 8-OHdG and benzene exposure level. 8-OHdG significantly correlated also with job seniority, (r = 0.312, p < 0.01), whereas the relation with age resulted weaker (r = 0.242, p < 0.05). Multiple linear regression analysis, performed to exclude a role for confounding factors, showed that variables like gender, smoking habit, alcohol consumption and BMI did not have a significant influence on the measured biomarkers. No subject enrolled in the study presented signs or symptoms of work-related disease or other illness linked to oxidative stress. These results suggest that low-level chronic exposure to benzene among gasoline station attendants can determine oxidative damage on DNA, as indicated by alteration of 8-OHdG which may represent a non-invasive biomarker of early genotoxic damage in exposed subjects.
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Affiliation(s)
- Concettina Fenga
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging - Occupational Medicine Section - University of Messina, 98125 Messina, Italy
| | - Silvia Gangemi
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging - Occupational Medicine Section - University of Messina, 98125 Messina, Italy
| | - Michele Teodoro
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging - Occupational Medicine Section - University of Messina, 98125 Messina, Italy
| | - Venerando Rapisarda
- Department of Clinical and Experimental Medicine - Occupational Medicine Section - University of Catania, 95131 Catania, Italy
| | - Kirill Golokhvast
- Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok 690001, Russia
| | - Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Aristidis M Tsatsakis
- Laboratory of Toxicology, Medical School, University of Crete, Voutes, 71409 Heraklion, Crete, Greece
| | - Chiara Costa
- Department of Clinical and Experimental Medicine - University of Messina, Messina 98125, Italy
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Fenga C, Gangemi S, Di Salvatore V, Falzone L, Libra M. Immunological effects of occupational exposure to lead (Review). Mol Med Rep 2017; 15:3355-3360. [PMID: 28339013 DOI: 10.3892/mmr.2017.6381] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 02/23/2017] [Indexed: 01/04/2023] Open
Abstract
It is well-known that occupational and environmental exposure to several factors, including benzene, heavy metals, chemicals and mineral fibers, is associated with the risk of developing a great number of diseases. Numerous studies have been carried out in order to investigate the mechanisms of toxicity of these substances, with particular regard to the possible toxic effects on the immune system. However, little is known about the influence of heavy metals, such as lead, on the immune system in human populations. Lead is a heavy metal still used in many industrial activities. Human exposure to lead can induce various biological effects depending upon the level and duration of exposure, such as toxic effects on haematological, cardiovascular, nervous and reproductive systems. Several studies demonstrated that exposure to lead is associated to toxic effects also on the immune system, thus increasing the incidence of allergy, infectious disease, autoimmunity or cancer. However, the effects of lead exposure on the human immune system are not conclusive, mostly in occupationally exposed subjects; nevertheless some immunotoxic abnormalities induced by lead have been suggested. In particular, in vivo, in vitro and ex vivo lead is able to improve T helper 2 (Th2) cell development affecting Th1 cell proliferation. Further studies are required to better understand the mechanisms of lead immunotoxicity and the ability of lead to affect preferentially one type of immune response.
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Affiliation(s)
- Concettina Fenga
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Section of Occupational Medicine, 'Policlinico G. Martino' Hospital, University of Messina, I-98125 Messina, Italy
| | - Silvia Gangemi
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Section of Occupational Medicine, 'Policlinico G. Martino' Hospital, University of Messina, I-98125 Messina, Italy
| | - Valentina Di Salvatore
- Department of Biomedical and Biotechnological Sciences, Laboratory of Translational Oncology and Functional Genomics, Section of General and Clinical Pathology and Oncology, University of Catania, I-95124 Catania, Italy
| | - Luca Falzone
- Department of Biomedical and Biotechnological Sciences, Laboratory of Translational Oncology and Functional Genomics, Section of General and Clinical Pathology and Oncology, University of Catania, I-95124 Catania, Italy
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, Laboratory of Translational Oncology and Functional Genomics, Section of General and Clinical Pathology and Oncology, University of Catania, I-95124 Catania, Italy
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Salemi R, Marconi A, Di Salvatore V, Franco S, Rapisarda V, Libra M. Epigenetic alterations and occupational exposure to benzene, fibers, and heavy metals associated with tumor development. Mol Med Rep 2017; 15:3366-3371. [DOI: 10.3892/mmr.2017.6383] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 02/16/2017] [Indexed: 11/05/2022] Open
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Gangemi S, Miozzi E, Teodoro M, Briguglio G, De Luca A, Alibrando C, Polito I, Libra M. Occupational exposure to pesticides as a possible risk factor for the development of chronic diseases in humans (Review). Mol Med Rep 2016; 14:4475-4488. [PMID: 27748877 PMCID: PMC5101964 DOI: 10.3892/mmr.2016.5817] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 09/30/2016] [Indexed: 12/13/2022] Open
Abstract
It is well known that pesticides are widely used compounds. In fact, their use in agriculture, forestry, fishery and the food industry has granted a huge improvement in terms of productive efficiency. However, a great number of epidemiological surveys have demonstrated that these toxic compounds can interact and exert negative effects not only with their targets (pests, herbs and fungi), but also with the rest of the environment, including humans. This is particularly relevant in the case of workers involved in the production, transportation, preparation and application of these toxicants. Accordingly, a growing body of evidence has demonstrated the correlation between occupational exposure to pesticides and the development of a wide spectrum of pathologies, ranging from eczema to neurological diseases and cancer. Pesticide exposure is often quite difficult to establish, as many currently used modules do not take into account all of the many variables that can occur in a diverse environment, such as the agricultural sector, and the assessment of the real risk for every single worker is problematic. Indeed, the use of personal protection equipment is necessary while handling these toxic compounds, but education of workers can be even more important: personal contamination with pesticides may occur even in apparently harmless situations. This review summarises the most recent findings describing the association between pesticide occupational exposure and the development of chronic diseases.
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Affiliation(s)
- Silvia Gangemi
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Occupational Medicine Section, 'Policlinico G. Martino' Hospital, University of Messina, I‑98125 Messina, Italy
| | - Edoardo Miozzi
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Occupational Medicine Section, 'Policlinico G. Martino' Hospital, University of Messina, I‑98125 Messina, Italy
| | - Michele Teodoro
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Occupational Medicine Section, 'Policlinico G. Martino' Hospital, University of Messina, I‑98125 Messina, Italy
| | - Giusi Briguglio
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Occupational Medicine Section, 'Policlinico G. Martino' Hospital, University of Messina, I‑98125 Messina, Italy
| | - Annamaria De Luca
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Occupational Medicine Section, 'Policlinico G. Martino' Hospital, University of Messina, I‑98125 Messina, Italy
| | - Carmela Alibrando
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Occupational Medicine Section, 'Policlinico G. Martino' Hospital, University of Messina, I‑98125 Messina, Italy
| | - Irene Polito
- Department of Biomedical, Odontoiatric, Morphological and Functional Images, Occupational Medicine Section, 'Policlinico G. Martino' Hospital, University of Messina, I‑98125 Messina, Italy
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, Laboratory of Translational Oncology and Functional Genomics, Section of General and Clinical Pathology and Oncology, University of Catania, I‑95124 Catania, Italy
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Falzone L, Marconi A, Loreto C, Franco S, Spandidos DA, Libra M. Occupational exposure to carcinogens: Benzene, pesticides and fibers (Review). Mol Med Rep 2016; 14:4467-4474. [PMID: 27748850 PMCID: PMC5101963 DOI: 10.3892/mmr.2016.5791] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/20/2016] [Indexed: 01/01/2023] Open
Abstract
It is well known that the occupational exposure to contaminants and carcinogens leads to the development of cancer in exposed workers. In the 18th century, Percivall Pott was the first to hypothesize that chronic exposure to dust in the London chimney sweeps was associated with an increased risk of developing cancer. Subsequently a growing body of evidence indicated that other physical factors were also responsible for oncogenic mutations. Over the past decades, many carcinogens have been found in the occupational environment and their presence is often associated with an increased incidence of cancer. Occupational exposure involves several factors and the association between carcinogens, occupational exposure and cancer is still unclear. Only a fraction of factors is recognized as occupational carcinogens and for each factor, there is an increased risk of cancer development associated with a specific work activity. According to the International Agency for Research on Cancer (IARC), the majority of carcinogens are classified as 'probable' and 'possible' human carcinogens, while, direct evidence of carcinogenicity is provided in epidemiological and experimental studies. In the present review, exposures to benzene, pesticides and mineral fibers are discussed as the most important cancer risk factors during work activities.
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Affiliation(s)
- Luca Falzone
- Department of Biomedical and Biotechnological Sciences, Section of General and Clinical Pathology and Oncology, University of Catania, I-95124 Catania, Italy
| | - Andrea Marconi
- Section of Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, I-95124 Catania, Italy
| | - Carla Loreto
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, I-95124 Catania, Italy
| | - Sabrina Franco
- Department of Medical, Surgical and Advanced Technology Sciences ‘G.F. Ingrassia’, University of Catania, I-95124 Catania, Italy
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, Medical School, University of Crete, Heraklion 71003, Greece
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, Section of General and Clinical Pathology and Oncology, University of Catania, I-95124 Catania, Italy
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