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Reynoso-Noverón N, Santibáñez-Andrade M, Torres J, Bautista-Ocampo Y, Sánchez-Pérez Y, García-Cuellar CM. Benzene exposure and pediatric leukemia: From molecular clues to epidemiological insights. Toxicol Lett 2024:S0378-4274(24)01099-3. [PMID: 39181343 DOI: 10.1016/j.toxlet.2024.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 08/09/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
According to the International Agency for Research on Cancer, leukemia ranks 14th in incidence and 11th in mortality and has a 5-year prevalence of approximately 1,300,000 cases. Acute lymphoblastic leukemia is the most common hematopoietic syndrome in children during the first 5 years of life and represents approximately 75% of all neoplasms among the pediatric population. The development of leukemia is strongly governed by DNA alterations that accelerate the growth of bone marrow cells. Currently, the most examined factor in pediatric leukemia is exposure to multiple compounds, such as hydrocarbons. Benzene, an aromatic hydrocarbon, can cause health challenges and is categorized as a carcinogen. Benzene toxicity has been widely associated with occupational exposure. Importantly, studies are underway to generate evidence that can provide clues regarding the risk of environmental benzene exposure and hematological problems in children. In this review, we summarize the existing evidence regarding the effects of benzene on pediatric leukemia, the associations between the effect of benzene on carcinogenesis, and the presence of certain molecular signatures in benzene-associated pediatric leukemia. Although there is sufficient evidence regarding the effects of benzene on carcinogenesis and leukemia, epidemiological research has primarily focused on occupational risk. Moreover, most benzene-induced molecular and cytogenetic alterations have been widely described in adults but not in the pediatric population. Thus, epidemiological efforts are crucial in the pediatric population in terms of epidemiological, clinical, and biomedical research.
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Affiliation(s)
- Nancy Reynoso-Noverón
- Dirección de Investigación, Instituto Nacional de Cancerología, Ciudad de México, Mexico.
| | - Miguel Santibáñez-Andrade
- Instituto Nacional de Cancerología (INCan), Subdirección de Investigación Básica, San Fernando No. 22, Ciudad de México 14080, Mexico
| | - Juan Torres
- Dirección de Investigación, Instituto Nacional de Cancerología, Ciudad de México, Mexico
| | - Yanueh Bautista-Ocampo
- Instituto Nacional de Cancerología (INCan), Subdirección de Investigación Básica, San Fernando No. 22, Ciudad de México 14080, Mexico
| | - Yesennia Sánchez-Pérez
- Instituto Nacional de Cancerología (INCan), Subdirección de Investigación Básica, San Fernando No. 22, Ciudad de México 14080, Mexico
| | - Claudia M García-Cuellar
- Instituto Nacional de Cancerología (INCan), Subdirección de Investigación Básica, San Fernando No. 22, Ciudad de México 14080, Mexico.
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2
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Li H, Sun Q, Li F, Wang B, Zhu B. Metabolomics of Benzene Exposure and Development of Biomarkers for Exposure Hazard Assessment. Metabolites 2024; 14:377. [PMID: 39057700 PMCID: PMC11278683 DOI: 10.3390/metabo14070377] [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: 04/16/2024] [Revised: 05/23/2024] [Accepted: 06/03/2024] [Indexed: 07/28/2024] Open
Abstract
Benzene, a common industrial solvent, poses significant health risks including poisoning and hematopoietic diseases. However, its precise toxicity mechanisms remain unclear. To assess the health impact of prolonged benzene exposure through metabolomic analyses of exposed workers and benzene-poisoned mice, aiming to identify biomarkers and minimize occupational hazards. This study compared 18 benzene-exposed workers with 18 non-exposed workers, matching for age, lifestyle, and BMI. The metabolites in the workers' samples were analyzed using ultra-high-performance liquid chromatography and mass spectrometry. A larger study included 118 exposed and 158 non-exposed workers, incorporating surveys and routine blood and urine tests with differential metabolites targeted via an enzyme-linked immunosorbent assay. The animal studies consisted of two 15- and 60-day benzene staining and control experiments on 28 C57BL/6J mice, followed by sample collection and organ analysis. The data analysis employed eXtensible Computational Mass Spectrometry (XCMS), Python, MetaboAnalyst 6.0, and SPSS24.0. The exposed workers exhibited altered metabolites indicating external benzene exposure, lower glucose levels, and changes in white blood cell counts and urinary ketone bodies. The plasma metabolomics revealed disturbances in energy and lipid metabolism. The benzene-exposed mice displayed reduced weight gain, behavioral changes, and organ damage. Oxidative stress and abnormal purine and lipid metabolism were observed in both the long-term benzene-exposed workers and benzene-exposed mice. Metabolic markers for the early detection of benzene exposure hazards were identified, underscoring the need to mitigate occupational risks.
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Affiliation(s)
- Hao Li
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
| | - Qianyu Sun
- Nanjing Jiangning District Center for Disease Prevention and Control, Nanjing 211100, China;
| | - Fei Li
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
| | - Boshen Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210000, China
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
| | - Baoli Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210000, China
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
- Jiangsu Preventive Medical Association, Nanjing 210000, China
- Center for Global Health, Nanjing Medical University, Nanjing 210000, China
- Jiangsu Province Engineering Research Center of Public Health Emergency, Nanjing 210000, China
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3
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Aloisi CMN, Escher NA, Kim HS, Geisen SM, Fontana GA, Yeo JE, Schärer OD, Sturla SJ. A combination of direct reversion and nucleotide excision repair counters the mutagenic effects of DNA carboxymethylation. DNA Repair (Amst) 2022; 110:103262. [PMID: 35030424 PMCID: PMC9232693 DOI: 10.1016/j.dnarep.2021.103262] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 12/20/2021] [Accepted: 12/20/2021] [Indexed: 02/03/2023]
Abstract
Distinct cellular DNA damage repair pathways maintain the structural integrity of DNA and protect it from the mutagenic effects of genotoxic exposures and processes. The occurrence of O6-carboxymethylguanine (O6-CMG) has been linked to meat consumption and hypothesized to contribute to the development of colorectal cancer. However, the cellular fate of O6-CMG is poorly characterized and there is contradictory data in the literature as to how repair pathways may protect cells from O6-CMG mutagenicity. To better address how cells detect and remove O6-CMG, we evaluated the role of two DNA repair pathways in counteracting the accumulation and toxic effects of O6-CMG. We found that cells deficient in either the direct repair protein O6-methylguanine-DNA methyltransferase (MGMT), or key components of the nucleotide excision repair (NER) pathway, accumulate higher levels O6-CMG DNA adducts than wild type cells. Furthermore, repair-deficient cells were more sensitive to carboxymethylating agents and displayed an increased mutation rate. These findings suggest that a combination of direct repair and NER circumvent the effects O6-CMG DNA damage.
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Affiliation(s)
- Claudia M N Aloisi
- Department of Health Sciences and Technology, ETH Zurich, 8092 Zurich, Switzerland
| | - Nora A Escher
- Department of Health Sciences and Technology, ETH Zurich, 8092 Zurich, Switzerland
| | - Hyun Suk Kim
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Susanne M Geisen
- Department of Health Sciences and Technology, ETH Zurich, 8092 Zurich, Switzerland
| | - Gabriele A Fontana
- Department of Health Sciences and Technology, ETH Zurich, 8092 Zurich, Switzerland
| | - Jung-Eun Yeo
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea; Department of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Orlando D Schärer
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea; Department of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
| | - Shana J Sturla
- Department of Health Sciences and Technology, ETH Zurich, 8092 Zurich, Switzerland.
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Ji B, Xiao LY, Ren JC, Zhang GH, Wang Y, Dong T, Li J, Zhang F, Xia ZL. Gene-Environment Interactions Between Environmental Response Genes Polymorphisms and Mitochondrial DNA Copy Numbers Among Benzene Workers. J Occup Environ Med 2021; 63:e408-e415. [PMID: 34184658 DOI: 10.1097/jom.0000000000002225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVE To determine the effect of mitochondrial DNA copy number (mtDNAcn) as a biomarker of benzene exposure. METHODS A total of 294 benzene-exposed workers and 102 controls were recruited. Biomarkers of mtDNAcn, cytokinesis-block micronucleus (MN) frequency, and peripheral blood white blood cells (WBC) were detected. Eighteen polymorphism sites in DNA damage repair and metabolic genes were analyzed. RESULTS Benzene exposure increased mtDNAcn and indicated a dose-response relationship (P < 0.001). mtDNAcn was negatively correlated with WBC count and DNA methylation and positively correlated with MN frequency. The AG type in rs1695 interacted with benzene exposure to aggravate mtDNAcn (β = 0.006, 95% CI: 0, 0.012, P = 0.050). rs13181, rs1695, rs1800975, and GSTM1 null were associated with benzene-induced mtDNAcn. Rs1695 interacted with benzene to increase mitochondrial damage. CONCLUSIONS Benzene exposure increases mtDNAcn levels in benzene-exposed workers.
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Affiliation(s)
- Buqiang Ji
- Department of Hematology, Linyi People's Hospital, 27 Jifang Road, Linyi, China (Ji, Xiao), School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, China (Ren, Zhang, Wang, Dong, Li, Zhang), Department of Occupational Health and Toxicology, School of Public Health, Fudan University, 138 Yixueyuan Road, Shanghai, China (Xia)
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5
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Ren JC, Liu H, Zhang GH, Wang T, Li J, Dong T, Wu H, Xia ZL. Interaction effects of environmental response gene polymorphisms and benzene exposure on telomere length in shoe-making workers. CHEMOSPHERE 2020; 255:126841. [PMID: 32416388 DOI: 10.1016/j.chemosphere.2020.126841] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Benzene is a globally occurring environmental and occupational pollutant that causes leukemia. To better understand telomere length (TL) as a function of benzene toxicity, we recruited 294 shoe-making workers and 102 controls from Wenzhou, China in 2011. Biomarkers of TL, cytokinesis-block micronucleus (MN) frequency, and white blood cells (WBC) were measured. In total, 18 polymorphic sites in environmental response genes, including metabolic and DNA repair genes, were analyzed. Results indicate that benzene exposure led to a longer TL at a threshold of 32 mg/m3-year of cumulative exposure dose (CED). Furthermore, the TL was longer in members of the damaged group, when evaluated for MN frequency (P < 0.001) and reduced WBC (P < 0.001), than in those of the normal group. Workers carrying genotype TT (β = 0.32, P = 0.042) in rs3212986 of ERCC1 and genotype TC (β = 0.24, P = 0.082) in rs1051740 of mEH exon3 were associated with a longer TL as compared to the wild-type group. TA (β = -0.53, P < 0.001) in rs6413432 of CYP2E1 was associated with a shorter TL. Benzene exposure interacted with the TA type in rs6413432 (β = 0.003, 95% CI: 0, 0.006, P = 0.042) and the CC type in rs1051740 (β = 0.007, 95% CI: 0.001, 0.013, P = 0.015) after adjusting for confounding factors. Our results indicate that benzene induces an increase in TL at a threshold of CED ≥32mg/m3-year. Rs1051740, rs3212986, and rs6413432 were found to be involved in benzene-induced telomere growth; in particular, rs1051740 and rs6413432 interacted with the benzene exposure, resulting in an extended TL.
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Affiliation(s)
- Jing-Chao Ren
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Huan Liu
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Guang-Hui Zhang
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China.
| | - Tongshuai Wang
- Department of Occupational Health and Toxicology, School of Public Health, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Jingzhi Li
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Tingting Dong
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Hantian Wu
- Department of Occupational Health and Toxicology, School of Public Health, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Zhao-Lin Xia
- Department of Occupational Health and Toxicology, School of Public Health, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China.
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Tualeka AR, Guan NY, Russeng SS, Ahsan A, Susilowati IH, Rahmawati P, Ain K. Relationship of Benzene Concentration, ECR Benzene, Malondialdehyde, Glutathione, and DNA Degeneration in Shoe Industrial Workers in Osowilangun, Indonesia. Dose Response 2020; 18:1559325820921023. [PMID: 32636718 PMCID: PMC7323299 DOI: 10.1177/1559325820921023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/24/2020] [Accepted: 03/30/2020] [Indexed: 12/15/2022] Open
Abstract
In the shoes industry, benzene constitute as one of the source of chemical hazard especially used in the gluing section. This compound is metabolized by the liver, forming free radicals in the body which can ultimately reduce the concentration of glutathione and increased malondialdehyde causing DNA degeneration. The purpose of this study was to determine the relationship between benzene concentration, excess cancer risk (ECR), malondialdehyde, glutathione, and DNA degeneration among workers in shoes industry in Osowilangun, Surabaya. This is an observational study with a cross-sectional design. The number of research samples was 25 respondents. The average concentration of benzene in workers was above the threshold (10.31 ppm). There were 15 (60%) respondents with ECR >0.0001 who experienced DNA degeneration. There was no relationship between benzene concentration, malondialdehyde, glutathione, and DNA degeneration. However, there was a relationship between benzene ECR, malondialdehyde, glutathione, and DNA degeneration in the shoe industry workers in Osowilangun.
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Affiliation(s)
- Abdul Rohim Tualeka
- Department of Occupational Health and Safety, Universitas Airlangga, Surabaya, East Java, Indonesia
| | - Ng Yee Guan
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Syamsiar S Russeng
- Department of Occupational Health and Safety, Faculty of Public Health, Hassanudin University, Makassar, Indonesia
| | - Ahsan Ahsan
- Faculty of Nurse, Brawijaya University, Malang, Indonesia
| | | | - Pudji Rahmawati
- Department of Development of Islamic Society, State Islamic University Sunan Ampel, Surabaya, Indonesia
| | - Khusnul Ain
- Departement of Biology, Faculty of Sains and Technology, Airlangga University, Surabaya, East Java, Indonesia
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7
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Vorläufiger Leitwert für Benzol in der Innenraumluft. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2020; 63:361-367. [DOI: 10.1007/s00103-019-03089-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Luijten M, Ball NS, Dearfield KL, Gollapudi BB, Johnson GE, Madia F, Peel L, Pfuhler S, Settivari RS, ter Burg W, White PA, van Benthem J. Utility of a next generation framework for assessment of genomic damage: A case study using the industrial chemical benzene. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2020; 61:94-113. [PMID: 31709603 PMCID: PMC6972600 DOI: 10.1002/em.22346] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/31/2019] [Accepted: 11/06/2019] [Indexed: 05/22/2023]
Abstract
We recently published a next generation framework for assessing the risk of genomic damage via exposure to chemical substances. The framework entails a systematic approach with the aim to quantify risk levels for substances that induce genomic damage contributing to human adverse health outcomes. Here, we evaluated the utility of the framework for assessing the risk for industrial chemicals, using the case of benzene. Benzene is a well-studied substance that is generally considered a genotoxic carcinogen and is known to cause leukemia. The case study limits its focus on occupational and general population health as it relates to benzene exposure. Using the framework as guidance, available data on benzene considered relevant for assessment of genetic damage were collected. Based on these data, we were able to conduct quantitative analyses for relevant data sets to estimate acceptable exposure levels and to characterize the risk of genetic damage. Key observations include the need for robust exposure assessments, the importance of information on toxicokinetic properties, and the benefits of cheminformatics. The framework points to the need for further improvement on understanding of the mechanism(s) of action involved, which would also provide support for the use of targeted tests rather than a prescribed set of assays. Overall, this case study demonstrates the utility of the next generation framework to quantitatively model human risk on the basis of genetic damage, thereby enabling a new, innovative risk assessment concept. Environ. Mol. Mutagen. 61:94-113, 2020. © 2019 The Authors. Environmental and Molecular Mutagenesis published by Wiley Periodicals, Inc. on behalf of Environmental Mutagen Society.
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Affiliation(s)
- Mirjam Luijten
- Centre for Health ProtectionNational Institute for Public Health and the Environment (RIVM)BilthovenThe Netherlands
| | | | | | | | - George E. Johnson
- Swansea University Medical School, Swansea UniversitySwanseaUnited Kingdom
| | - Federica Madia
- European Commission, Joint Research Centre (JRC)IspraItaly
| | - Lauren Peel
- Health and Environmental Sciences InstituteWashingtonDistrict of Columbia
| | | | | | - Wouter ter Burg
- Centre for Safety of Substances and ProductsNational Institute for Public Health and the Environment (RIVM)BilthovenThe Netherlands
| | - Paul A. White
- Department of BiologyUniversity of OttawaOttawaOntarioCanada
| | - Jan van Benthem
- Centre for Health ProtectionNational Institute for Public Health and the Environment (RIVM)BilthovenThe Netherlands
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Fu Y, Niu Y, Pan B, Liu Y, Zhang B, Li X, Yang A, Nie J, Wang R, Yang J. OGG1 methylation mediated the effects of cell cycle and oxidative DNA damage related to PAHs exposure in Chinese coke oven workers. CHEMOSPHERE 2019; 224:48-57. [PMID: 30807913 DOI: 10.1016/j.chemosphere.2019.02.114] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 02/14/2019] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
Previous publications have indicated that polycyclic aromatic hydrocarbons (PAHs) exposures are associated with increased DNA damage and abnormal cell cycle arrest; however, the details of mechanisms remain largely unknown. This study aimed to quantify the associations of 8-oxoguanine DNA glycosylase (OGG1) methylation with urinary PAHs metabolites, DNA damage and cell cycle arrest, and further to assess the role of OGG1 methylation in mediating the association of urinary PAHs metabolites with DNA damage and cell cycle arrest. Urinary biomarkers of PAHs exposure and a marker of oxidative DNA damage (8-hydroxy-2'-deoxyguanosin, 8-OHdG) were measured by high performance liquid chromatography. Cell cycle of lymphocyte was analysed with flow cytometry and OGG1 methylation in venous blood was measured by pyrosequencing. After adjusting for covariates, urinary 1-OHP levels were positively associated with lymphocyte S phase arrest and oxidative DNA damage, while were negatively associated with G0/G1 phase arrest. OGG1 methylation was not only positively correlated with urinary 1-OHP in a dose-responsive manner (P trend = 0.008) but was also associated with G0/G1 phase arrest (OR: 0.63, 95% CI: 0.41-0.97), S phase arrest (OR: 1.55, 95% CI: 1.01-2.40) and oxidative DNA damage (OR: 1.71, 95% CI: 1.02-2.86). Mediation analysis estimated that OGG1 methylation mediated about 20% of associations between urinary 1-OHP levels and cell cycle arrest and oxidative DNA damage, respectively (all P < 0.05). Our findings suggested that urinary 1-OHP concentrations were associated with cell cycle arrest and oxidative DNA damage by a mechanism partly involving OGG1 methylation.
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Affiliation(s)
- Ye Fu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Yingying Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Baolong Pan
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Yanli Liu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Bin Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Xuejing Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Aimin Yang
- School of Public Health, The University of Hong Kong, Hong Kong SAR, China
| | - Jisheng Nie
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Ruisheng Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Jin Yang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China.
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Zhang A, Wu M, Tan J, Yu N, Xu M, Yu X, Liu W, Zhang Y. Establishment of a zebrafish hematological disease model induced by 1,4-benzoquinone. Dis Model Mech 2019; 12:dmm.037903. [PMID: 30898970 PMCID: PMC6451425 DOI: 10.1242/dmm.037903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 03/11/2019] [Indexed: 12/16/2022] Open
Abstract
Benzene exposure is associated with various hematological disorders, in particular leukemia. The reactive metabolite of benzene, 1,4-benzoquinone (BQ), generated in bone marrow, is suggested to be a key molecule in mediating benzene-induced hematotoxicity and carcinogenicity. However, its pathogenic role remains largely unknown due to a lack of suitable vertebrate whole-organism models. Here, we present an in vivo study to reveal the effect of BQ exposure on hematotoxicity in zebrafish. From embryonic stages to adulthood, BQ exposure suppressed erythroid and lymphoid hematopoiesis but led to abnormal accumulation of myeloid cells and precursors, which resembles benzene-induced cytopenia and myeloid dysplasia in humans. This myeloid expansion is caused by granulocyte, but not macrophage, lineage, emphasizing the significant role of lineage specificity in BQ-mediated hematopoietic toxicity. Analysis of the c-myb (also known as myb)-deficient mutant cmybhkz3 revealed that BQ induced neutrophilia in a c-myb-dependent manner, demonstrating that c-myb is a key intrinsic mediator of BQ hematotoxicity. Our study reveals that BQ causes lineage-specific hematotoxicity in zebrafish from embryonic stages to adulthood. Since c-myb is indispensable for BQ to induce neutrophilia, c-myb could serve as a potential drug target for reversing BQ hematotoxicity. Summary: Acute exposure to 1,4-benzoquinone leads to lineage-specific hematotoxicity in zebrafish from embryonic stages to adulthood, resembling benzene-induced cytopenia and myeloid dysplasia in humans.
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Affiliation(s)
- Ao Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Mei Wu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Junliang Tan
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ning Yu
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Mengchang Xu
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xutong Yu
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wei Liu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Yiyue Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China
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11
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Association of BER and NER pathway polymorphism haplotypes and micronucleus frequencies with global DNA methylation in benzene-exposed workers of China: Effects of DNA repair genes polymorphisms on genetic damage. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2019; 839:13-20. [PMID: 30744808 DOI: 10.1016/j.mrgentox.2019.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/19/2018] [Accepted: 01/16/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The base excision repair (BER) pathway and nucleotide excision repair (NER) pathway play important roles in the repair of benzene-induced genetic damage, and the effects of polymorphisms in these pathways on genetic damage and global DNA methylation are of great interest. METHODS Ten single nucleotide polymorphisms (SNPs) in the BER (XRCC1: rs25489, rs25487; APE1: rs1130409) and NER pathways (XPA: rs1800975; XPC: rs2228000, rs2228002; XPD: rs13181, rs1799793; XPG: rs17655; ERCC1: rs3212986) were analyzed by a Kompetitive allele-specific PCR (KASP) assay to find associations with cytokinesis-block micronucleus (MN) frequency and global DNA methylation in 294 shoe factory workers and 102 control participants. RESULTS Workers who possessed the following genotypes were associated with high MN frequency: rs25487 AA (FR (95% CI): 1.50 (1.16,1.9), p = 0.002, reference GG); rs1130409 GG (FR (95% CI): 1.28 (1.05,1.55), p = 0.010, reference TT); rs17655 GC (FR (95% CI): 1.18 (1.02,1.38), p = 0.038, reference GG); and rs3212986 TT (FR (95% CI): 1.55 (1.31,1.83), p < 0.001, reference GG). Workers with four and three mutant alleles showed 3.72-fold (OR (95% CI): 3.72 (1.34, 10.03), p = 0.009) and 2.48-fold (OR (95% CI): 2.48 (1.27, 4.88), p = 0.008) increased risk of genetic damage compared with workers with no or one mutant allele, and a dose-response relationship was found by the trend test (p = 0.006). The rs1130409 variant allele (GG+GT) was associated with low global DNA methylation (β=-0.20, 95% CI: -0.42, 0.03, p = 0.045). CONCLUSION In benzene-exposed workers, BER and NER pathway polymorphism haplotypes are associated with different levels of chromosome damage and had little effect on global DNA methylation.
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12
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Joksimović N, Baskić D, Popović S, Zarić M, Kosanić M, Ranković B, Stanojković T, Novaković SB, Davidović G, Bugarčić Z, Janković N. Synthesis, characterization, biological activity, DNA and BSA binding study: novel copper(ii) complexes with 2-hydroxy-4-aryl-4-oxo-2-butenoate. Dalton Trans 2018; 45:15067-15077. [PMID: 27711668 DOI: 10.1039/c6dt02257j] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A serie of novel square pyramidal copper(ii) complexes [Cu(L)2H2O] (3a-d) with O,O-bidentate ligands [L = ethyl-2-hydroxy-4-aryl-4-oxo-2-butenoate; aryl = 3-methoxyphenyl-2a, (E)-2-phenylvinyl-2b, (E)-2-(4'-hydroxy-3'-methoxyphenyl)vinyl-2c, 3-nitrophenyl-2d, 2-thienyl-2e] were synthesized and characterized by spectral (UV-Vis, IR, ESI-MS and EPR), elemental and X-ray analysis. The antimicrobial activity was estimated by the determination of the minimal inhibitory concentration (MIC) using the broth microdilution method. The most active antibacterial compounds were 3c and 3d, while the best antifungal activity was showed by complexes 3b and 3e. The lowest MIC value (0.048 mg mL-1) was measured for 3c against Proteus mirabilis. The cytotoxic activity was tested using the MTT method on human epithelial carcinoma HeLa cells, human lung carcinoma A549 cells and human colon carcinoma LS174 cells. All complexes showed extremely better cytotoxic activity compared to cisplatin at all tested concentrations. Compound 3d expressed the best activity against all tested cell lines with IC50 values ranging from 7.45 to 7.91 μg mL-1. The type of cell death and the impact on the cell cycle for 3d and 3e were evaluated by flow cytometry. Both compounds induced apoptosis and S phase cell cycle arrest. The interactions between selected complexes (3d and 3e) and CT-DNA or bovine serum albumin (BSA) were investigated by the fluorescence spectroscopic method. Competitive experiments with ethidium bromide (EB) indicated that 3d and 3e have a propensity to displace EB from the EB-DNA complex through intercalation suggesting strong competition with EB [Ksv = (1.4 ± 0.2) and (2.9 ± 0.1) × 104 M-1, respectively]. Ksv values indicate that these complexes bind to DNA covalently and non-covalently. The achieved results in the fluorescence titration of BSA with 3d and 3e [Ka = (2.9 ± 0.2) × 106 and (2.5 ± 0.2) × 105 M, respectively] showed that the fluorescence quenching of BSA is a result of the formation of the 3d- and 3e-BSA complexes. The obtained Ka values are high enough to ensure that a significant amount of 3d and 3e gets transported and distributed through the cells.
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Affiliation(s)
- Nenad Joksimović
- Faculty of Science, University of Kragujevac, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia.
| | - Dejan Baskić
- Centre for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Suzana Popović
- Centre for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Milan Zarić
- Department of Biochemistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Marijana Kosanić
- Faculty of Science, University of Kragujevac, Department of Biology and Ecology, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Branislav Ranković
- Faculty of Science, University of Kragujevac, Department of Biology and Ecology, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Tatjana Stanojković
- Institute of Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia
| | - Sladjana B Novaković
- Vinča Institute of Nuclear Science, University of Belgrade University of Belgrade, P.O. Box 522, 11001, Belgrade, Serbia
| | - Goran Davidović
- Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Zorica Bugarčić
- Faculty of Science, University of Kragujevac, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia.
| | - Nenad Janković
- Faculty of Science, University of Kragujevac, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia.
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13
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Chiarella P, Carbonari D, Capone P, Cavallo D, Iavicoli S, Mansi A, Sisto R, Tranfo G. Susceptibility biomarker detection in urine exfoliate DNA. Biomark Med 2017; 11:957-966. [PMID: 29053015 DOI: 10.2217/bmm-2017-0113] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM The occupational biomonitoring of exposures to carcinogens is carried out by measuring dose (metabolites) and susceptibility biomarkers (gene polymorphisms) in two biological matrices: urine for metabolite detection and blood for genotyping. Blood is the most common substrate but has some disadvantages including: invasiveness of the harvesting technique; need of specialized staff and equipment; and high infection risk. METHODS & RESULTS We propose our in-house approach using urine as single sample in 20 volunteers for simultaneous detection of dose and susceptibility biomarkers in order to verify efficacy and feasibility. CONCLUSION Despite the low number of subjects, interindividual and gender variability in DNA yield, urine genomic DNA is a valuable source for gene polymorphism studies when blood samples are not available. [Formula: see text].
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Affiliation(s)
- Pieranna Chiarella
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
| | - Damiano Carbonari
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
| | - Pasquale Capone
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
| | - Delia Cavallo
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
| | - Sergio Iavicoli
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
| | - Antonella Mansi
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
| | - Renata Sisto
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
| | - Giovanna Tranfo
- INAIL Research - Department of Occupational & Environmental Medicine, Epidemiology & Hygiene. Via Fontana Candida 1 - 00078 Monte Porzio Catone (RM), Italy
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14
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Sun R, Zhang J, Wei H, Meng X, Ding Q, Sun F, Cao M, Yin L, Pu Y. Acetyl-l-carnitine partially prevents benzene-induced hematotoxicity and oxidative stress in C3H/He mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 51:108-113. [PMID: 28233701 DOI: 10.1016/j.etap.2017.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 02/04/2017] [Accepted: 02/08/2017] [Indexed: 06/06/2023]
Abstract
Benzene is an environmental pollutant and occupational toxicant which induces hematotoxicity. Our previous metabonomics study suggested that acetyl-l-carnitine (ALCAR) decreased in the mouse plasma and bone marrow (BM) cells due to benzene exposure. In the present study, the topic on whether ALCAR influences hematotoxicity caused by benzene exposure was explored. Thirty-two male C3H/He mice were divided into four groups: control group (C: vehicle, oil), benzene group (150mg/kg body weight (b.w.) benzene), benzene+A1 group (150mg/kg b.w. benzene+100mg/kg b.w. ALCAR), and benzene+A2 group (150mg/kg b.w. benzene+200mg/kg b.w. ALCAR). Benzene was injected subcutaneously, and ALCAR was orally administrated via gavage once daily for 4 weeks consecutively. After the experimental period, the blood routine, BM cell number and frequency of hematopoietic stem/progenitor cell (HS/PC) were assessed. The mitochondrial membrane potential and ATP level were determined to evaluate the mitochondrial function. Reactive oxygen species (ROS), hydrogen peroxide (H2O2) and malondialdehyde (MDA) levels were also examined, and the comet assay was performed to measure oxidative stress. Results showed that ALCAR intervention can partially reduce the benzene-induced damage on BM and HS/PCs and can simultaneously alleviate the DNA damage by reducing benzene-induced H2O2, ROS, and MDA.
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Affiliation(s)
- Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Juan Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China.
| | - Haiyan Wei
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Xing Meng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Qin Ding
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Fengxia Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Meng Cao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China.
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15
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Alvarado-Cruz I, Sánchez-Guerra M, Hernández-Cadena L, De Vizcaya-Ruiz A, Mugica V, Pelallo-Martínez NA, Solís-Heredia MDJ, Byun HM, Baccarelli A, Quintanilla-Vega B. Increased methylation of repetitive elements and DNA repair genes is associated with higher DNA oxidation in children in an urbanized, industrial environment. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2017; 813:27-36. [DOI: 10.1016/j.mrgentox.2016.11.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 11/11/2016] [Accepted: 11/21/2016] [Indexed: 02/04/2023]
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16
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Son MY, Deng CX, Hoeijmarkers JH, Rebel VI, Hasty P. A mechanism for 1,4-Benzoquinone-induced genotoxicity. Oncotarget 2016; 7:46433-46447. [PMID: 27340773 PMCID: PMC5216808 DOI: 10.18632/oncotarget.10184] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 05/22/2016] [Indexed: 12/30/2022] Open
Abstract
Benzene is a common environmental toxin and its metabolite, 1-4-Benzoquinone (BQ) causes hematopoietic cancers like myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). BQ has not been comprehensively assessed for its impact on genome maintenance, limiting our understanding of the true health risks associated with benzene exposure and our ability to identify people with increased sensitivity to this genotoxin. Here we analyze the impact BQ exposure has on wild type and DNA repair-defective mouse embryonic stem (ES) cells and wild type human cells. We find that double strand break (DSB) repair and replication fork maintenance pathways including homologous recombination (HR) and Fanconi anemia (FA) suppress BQ toxicity. BQ-induced damage efficiently stalls replication forks, yet poorly induces ATR/DNA-PKCS responses. Furthermore, the pattern of BQ-induced γH2AX and 53BP1foci is consistent with the formation of poly(ADP-ribose) polymerase 1 (PARP1)-stabilized regressed replication forks. At a biochemical level, BQ inhibited topoisomerase 1 (topo1)-mediated DNA ligation and nicking in vitro; thus providing mechanism for the cellular phenotype. These data are consistent with a model that proposes BQ interferes with type I topoisomerase's ability to maintain replication fork restart and progression leading to chromosomal instability that has the potential to cause hematopoietic cancers like MDS and AML.
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Affiliation(s)
- Mi Young Son
- Department of Molecular Medicine and Institute of Biotechnology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Chu-Xia Deng
- Faculty of Health Sciences, University of Macau, Macau SAR China
| | - Jan H. Hoeijmarkers
- Department of Genetics, Cancer Genomics Netherlands, Erasmus MC, The Netherlands
| | - Vivienne I. Rebel
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- The Cancer Therapy Research Center, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- The Barshop Center of Aging, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- Greehey Children's Cancer Research Center, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- Current address: BioAffinity, San Antonio, Texas, USA
| | - Paul Hasty
- Department of Molecular Medicine and Institute of Biotechnology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- The Cancer Therapy Research Center, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- The Barshop Center of Aging, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
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17
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Carbonari D, Chiarella P, Mansi A, Pigini D, Iavicoli S, Tranfo G. Biomarkers of susceptibility following benzene exposure: influence of genetic polymorphisms on benzene metabolism and health effects. Biomark Med 2016; 10:145-63. [PMID: 26764284 DOI: 10.2217/bmm.15.106] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Benzene is a ubiquitous occupational and environmental pollutant. Improved industrial hygiene allowed airborne concentrations close to the environmental context (1-1000 µg/m(3)). Conversely, new limits for benzene levels in urban air were set (5 µg/m(3)). The biomonitoring of exposure to such low benzene concentrations are performed measuring specific and sensitive biomarkers such as S-phenylmercapturic acid, trans, trans-muconic acid and urinary benzene: many studies referred high variability in the levels of these biomarkers, suggesting the involvement of polymorphic metabolic genes in the individual susceptibility to benzene toxicity. We reviewed the influence of metabolic polymorphisms on the biomarkers levels of benzene exposure and effect, in order to understand the real impact of benzene exposure on subjects with increased susceptibility.
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Affiliation(s)
- Damiano Carbonari
- INAIL Reaserch, Department of Occupational & Environmental Medicine, Epidemiology & Hygiene, Via Fontana Candida 1 - 00040 Monte Porzio Catone (RM), Italy
| | - Pieranna Chiarella
- INAIL Reaserch, Department of Occupational & Environmental Medicine, Epidemiology & Hygiene, Via Fontana Candida 1 - 00040 Monte Porzio Catone (RM), Italy
| | - Antonella Mansi
- INAIL Reaserch, Department of Occupational & Environmental Medicine, Epidemiology & Hygiene, Via Fontana Candida 1 - 00040 Monte Porzio Catone (RM), Italy
| | - Daniela Pigini
- INAIL Reaserch, Department of Occupational & Environmental Medicine, Epidemiology & Hygiene, Via Fontana Candida 1 - 00040 Monte Porzio Catone (RM), Italy
| | - Sergio Iavicoli
- INAIL Reaserch, Department of Occupational & Environmental Medicine, Epidemiology & Hygiene, Via Fontana Candida 1 - 00040 Monte Porzio Catone (RM), Italy
| | - Giovanna Tranfo
- INAIL Reaserch, Department of Occupational & Environmental Medicine, Epidemiology & Hygiene, Via Fontana Candida 1 - 00040 Monte Porzio Catone (RM), Italy
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18
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Burmudžija A, Ratković Z, Muškinja J, Janković N, Ranković B, Kosanić M, Đorđević S. Ferrocenyl based pyrazoline derivatives with vanillic core: synthesis and investigation of their biological properties. RSC Adv 2016. [DOI: 10.1039/c6ra18977f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of four novel series of ferrocenyl based pyrazoline derivatives with vanillic core are described and microbiological, BSA and DNA binding studies conducted.
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Affiliation(s)
- Adrijana Burmudžija
- Faculty of Science
- University of Kragujevac
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Zoran Ratković
- Faculty of Science
- University of Kragujevac
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Jovana Muškinja
- Faculty of Science
- University of Kragujevac
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Nenad Janković
- Faculty of Science
- University of Kragujevac
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Branislav Ranković
- Faculty of Science
- University of Kragujevac
- Department of Biology and Ecology
- 34000 Kragujevac
- Serbia
| | - Marijana Kosanić
- Faculty of Science
- University of Kragujevac
- Department of Biology and Ecology
- 34000 Kragujevac
- Serbia
| | - Snežana Đorđević
- National Poison Control Centre
- Military Medical Academy
- 11000 Belgrade
- Republic of Serbia
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19
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Sun R, Zhang J, Xiong M, Wei H, Tan K, Yin L, Pu Y. Altered Expression of Genes in Signaling Pathways Regulating Proliferation of Hematopoietic Stem and Progenitor Cells in Mice with Subchronic Benzene Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:9298-313. [PMID: 26262635 PMCID: PMC4555281 DOI: 10.3390/ijerph120809298] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 07/29/2015] [Accepted: 08/02/2015] [Indexed: 12/25/2022]
Abstract
Leukemias and hematopoietic disorders induced by benzene may arise from the toxicity of benzene to hematopoietic stem or progenitor cells (HS/PCs). Since there is a latency period between initial benzene exposure and the development of leukemia, subsequent impact of benzene on HS/PCs are crucial for a deeper understanding of the carcinogenicity and hematotoxicity in post-exposure stage. This study aims to explore the effects of benzene on HS/PCs and gene-expression in Wnt, Notch and Hh signaling pathways in post-exposure stage. The C3H/He mice were injected subcutaneously with benzene (0, 150, 300 mg/kg/day) for three months and were monitored for another 10 months post-exposure. The body weights were monitored, the relative organ weights, blood parameters and bone marrow smears were examined. Frequency of lineage- sca-1+ c-kit+ (LSK) cells, capability of colony forming and expression of genes in Wnt, Notch and Hedghog (Hh) signaling pathways were also analyzed. The colony formation of the progenitor cells for BFU-E, CFU-GEMM and CFU-GM was significantly decreased with increasing benzene exposure relative to controls, while no significant difference was observed in colonies for CFU-G and CFU-M. The mRNA level of cyclin D1 was increased and Notch1 and p53 were decreased in LSK cells in mice exposed to benzene but with no statistical significance. These results suggest that subsequent toxic effects of benzene on LSK cells and gene expression in Wnt, Notch and Hh signaling pathways persist in post-exposure stage and may play roles in benzene-induced hematotoxicity.
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Affiliation(s)
- Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education.
| | - Juan Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education.
| | - Mengzhen Xiong
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education.
| | - Haiyan Wei
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education.
| | - Kehong Tan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education.
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education.
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education
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20
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Mascelloni M, Delgado-Saborit JM, Hodges NJ, Harrison RM. Study of gaseous benzene effects upon A549 lung epithelial cells using a novel exposure system. Toxicol Lett 2015; 237:38-45. [DOI: 10.1016/j.toxlet.2015.05.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 04/13/2015] [Accepted: 05/21/2015] [Indexed: 11/30/2022]
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21
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Shahabadi N, Moeini N. Synthesis, characterization and DNA interaction studies of a new platinum(II) complex containing caffeine and histidine ligands using instrumental and computational methods. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1055259] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nazanin Moeini
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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22
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Zhou T, Chen P, Gu J, Bishop AJR, Scott LM, Hasty P, Rebel VI. Potential relationship between inadequate response to DNA damage and development of myelodysplastic syndrome. Int J Mol Sci 2015; 16:966-89. [PMID: 25569081 PMCID: PMC4307285 DOI: 10.3390/ijms16010966] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/22/2014] [Indexed: 12/29/2022] Open
Abstract
Hematopoietic stem cells (HSCs) are responsible for the continuous regeneration of all types of blood cells, including themselves. To ensure the functional and genomic integrity of blood tissue, a network of regulatory pathways tightly controls the proliferative status of HSCs. Nevertheless, normal HSC aging is associated with a noticeable decline in regenerative potential and possible changes in other functions. Myelodysplastic syndrome (MDS) is an age-associated hematopoietic malignancy, characterized by abnormal blood cell maturation and a high propensity for leukemic transformation. It is furthermore thought to originate in a HSC and to be associated with the accrual of multiple genetic and epigenetic aberrations. This raises the question whether MDS is, in part, related to an inability to adequately cope with DNA damage. Here we discuss the various components of the cellular response to DNA damage. For each component, we evaluate related studies that may shed light on a potential relationship between MDS development and aberrant DNA damage response/repair.
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Affiliation(s)
- Ting Zhou
- Greehey Children's Cancer Research Center, University of Texas Health Science Center San Antonio (UTHSCSA), 8403 Floyd Curl Drive, San Antonio, TX 78229, USA.
| | - Peishuai Chen
- Greehey Children's Cancer Research Center, University of Texas Health Science Center San Antonio (UTHSCSA), 8403 Floyd Curl Drive, San Antonio, TX 78229, USA.
| | - Jian Gu
- Department of Hematology, Northern Jiangsu People's Hospital, Yangzhou 225001, China.
| | - Alexander J R Bishop
- Greehey Children's Cancer Research Center, University of Texas Health Science Center San Antonio (UTHSCSA), 8403 Floyd Curl Drive, San Antonio, TX 78229, USA.
| | - Linda M Scott
- The University of Queensland Diamantina Institute, Translational Research Institute, 37 Kent Street, Woolloongabba, QLD 4102, Australia.
| | - Paul Hasty
- The Cancer Therapy Research Center, UTHSCSA, 7979 Wurzbach Road, San Antonio, TX 78229, USA.
| | - Vivienne I Rebel
- Greehey Children's Cancer Research Center, University of Texas Health Science Center San Antonio (UTHSCSA), 8403 Floyd Curl Drive, San Antonio, TX 78229, USA.
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23
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Hemamalini A, Azhagiya Singam ER, Mudedla SK, Subramanian V, Mohan Das T. Design and synthesis of sugar-triazole based uracil appended sugar-imine derivatives – an application in DNA binding studies. NEW J CHEM 2015. [DOI: 10.1039/c4nj02221a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction of the sugar-triazoles with CT-DNA was explored, which revealed that all the compounds could interact with CT-DNA through groove binding, which was further supported by the docking analysis.
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Affiliation(s)
| | | | | | | | - Thangamuthu Mohan Das
- Department of Organic Chemistry
- University of Madras
- Chennai – 600 025
- India
- Department of Chemistry
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Barata-Silva C, Mitri S, Pavesi T, Saggioro E, Moreira JC. Benzeno: reflexos sobre a saúde pública, presença ambiental e indicadores biológicos utilizados para a determinação da exposição. ACTA ACUST UNITED AC 2014. [DOI: 10.1590/1414-462x201400040006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
O uso indiscriminado de um número cada vez maior de substâncias químicas vem aumentando e a contaminação ambiental associada tem trazido sérias consequências para o sistema público de saúde devido à elevação de danos para a saúde humana. Uma das substâncias que desperta grande interesse devido à contaminação contemporânea é o benzeno, composto aromático classificado pela International Agency for Research on Cancer como reconhecidamente carcinogênico para humanos. O objetivo do presente estudo foi elaborar e discutir um panorama sobre a contaminação por benzeno, seu metabolismo, consequências para a saúde e sua determinação ambiental e biológica a partir de informações existentes na literatura científica. O levantamento de dados possibilitou o acesso a mais de 200 artigos científicos tanto de âmbito nacional quanto internacional, demonstrando a atualidade do tema e a necessidade de minimização da exposição humana a essa substância. A maioria preocupa-se em explorar o metabolismo e investigar indicadores de exposição, muitos já amplamente estudados e com sérias limitações. Contudo, um crescente número de pesquisadores estão empenhados em elucidar fatores relacionados à suscetibilidade e à interferência da exposição no material genético e proteico. Indicadores de exposição inovadores têm sido propostos com o objetivo de complementar as lacunas de informações anteriormente obtidas, contribuindo para o delineamento da estrutura da biologia de sistemas orgânicos frente à exposição ao benzeno.
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Abu-Dief AM, Nassr LAE. Tailoring, physicochemical characterization, antibacterial and DNA binding mode studies of Cu(II) Schiff bases amino acid bioactive agents incorporating 5-bromo-2-hydroxybenzaldehyde. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2014. [DOI: 10.1007/s13738-014-0557-9] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Assessment of micronuclei and sister chromatid exchange frequency in the petroleum industry workers in province of Vojvodina, Republic of Serbia. Food Chem Toxicol 2014; 69:63-8. [DOI: 10.1016/j.fct.2014.03.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/28/2014] [Accepted: 03/28/2014] [Indexed: 01/02/2023]
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Chandrasekaran S, Sameena Y, Enoch IVMV, Santhanam V. Binding of the Host–Guest Complex of 7-Aminoflavone/β-Cyclodextrin with Calf Thymus DNA: A Spectroscopic and Molecular Docking Study. J SOLUTION CHEM 2014. [DOI: 10.1007/s10953-014-0187-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abdel-Rahman LH, El-Khatib RM, Nassr LAE, Abu-Dief AM, Ismael M, Seleem AA. Metal based pharmacologically active agents: synthesis, structural characterization, molecular modeling, CT-DNA binding studies and in vitro antimicrobial screening of iron(II) bromosalicylidene amino acid chelates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:366-378. [PMID: 24001978 DOI: 10.1016/j.saa.2013.07.056] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Revised: 07/20/2013] [Accepted: 07/26/2013] [Indexed: 06/02/2023]
Abstract
In recent years, great interest has been focused on Fe(II) Schiff base amino acid complexes as cytotoxic and antitumor drugs. Thus a series of new iron(II) complexes based on Schiff bases amino acids ligands have been designed and synthesized from condensation of 5-bromosalicylaldehyde (bs) and α-amino acids (L-alanine (ala), L-phenylalanine (phala), L-aspartic acid (aspa), L-histidine (his) and L-arginine (arg)). The structure of the investigated iron(II) complexes was elucidated using elemental analyses, infrared, ultraviolet-visible, thermogravimetric analysis, as well as conductivity and magnetic susceptibility measurements. Moreover, the stoichiometry and the stability constants of the prepared complexes have been determined spectrophotometrically. The results suggest that 5-bromosalicylaldehyde amino acid Schiff bases (bs:aa) behave as dibasic tridentate ONO ligands and coordinate to Fe(II) in octahedral geometry according to the general formula [Fe(bs:aa)2]·nH2O. The conductivity values between 37 and 64 ohm(-1) mol(-1) cm(2) in ethanol imply the presence of nonelectrolyte species. The structure of the complexes was validated using quantum mechanics calculations based on accurate DFT methods. Geometry optimization of the Fe-Schiff base amino acid complexes showed that all complexes had octahedral coordination. In addition, the interaction of these complexes with (CT-DNA) was investigated at pH=7.2, by using UV-vis absorption, viscosity and agarose gel electrophoresis measurements. Results indicated that the investigated complexes strongly bind to calf thymus DNA via intercalative mode and showed a different DNA binding according to the sequence: bsari>bshi>bsali>bsasi>bsphali. Moreover, the prepared compounds are screened for their in vitro antibacterial and antifungal activity against three types of bacteria, Escherichia coli, Pseudomonas aeruginosa and Bacillus cereus and three types of anti fungal cultures, Penicillium purpurogenium, Aspergillus flavus and Trichotheium rosium. The results of these studies indicated that the metal complexes exhibit a stronger antibacterial and antifungal efficiency than their corresponding Schiff base amino acid ligands.
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Physicochemical studies on the interaction of gold(III) trichlorophenanthridine complex with calf thymus DNA. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-1032-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Xing C, Chen Q, Li G, Zhang L, Zheng M, Zou Z, Hou L, Wang QF, Liu X, Guo X. Microsomal epoxide hydrolase (EPHX1) polymorphisms are associated with aberrant promoter methylation of ERCC3 and hematotoxicity in benzene-exposed workers. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2013; 54:397-405. [PMID: 23797950 DOI: 10.1002/em.21786] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/21/2013] [Accepted: 04/22/2013] [Indexed: 06/02/2023]
Abstract
Benzene is an important industrial chemical and widespread environmental pollutant known to induce leukemia and other blood disorders. To be carcinogenic, benzene must be metabolized to produce toxic metabolites. To investigate whether single nucleotide polymorphisms (SNPs) in the metabolic enzyme genes are associated with benzene-induced alterations in DNA methylation and hematotoxicity, we genotyped four commonly studied SNPs in three metabolic enzymes genes CYP1A1, EPHX1 and NQO1; and analyzed promoter DNA methylation status in 11 genes which have been reported to be associated with benzene-induced hematotoxicity (BLM, CYP1A1, EPHX1, ERCC3, NQO1, NUDT1, p15, p16, RAD51, TP53 and WRAP53) in 77 benzene-exposed workers and 25 unexposed controls in China. ERCC3, a DNA repair gene, showed a small but statistically significant increase of promoter DNA methylation in the exposed group compared with the unexposed group (mean ± SD: 4.73 ± 3.46% vs. 3.63 ± 1.96%, P = 0.048). We also observed that an increased number of C allele for rs1051740 in EPHX1 was associated with decreased ERCC3 methylation levels in benzene-exposed workers (P(trend) = 0.001), but not in unexposed controls (P(trend) = 0.379). Interestingly, another EPHX1 SNP (rs2234922) was associated with lower white blood cell (WBC) counts (P(trend) = 0.044) in benzene-exposed workers. These associations remained the same when ERCC3 promoter methylation and WBCs were dichotomized according to the 90th percentile (≥6%) of methylation levels in controls and a leucopenia cutoff (<4 × 10(9) /L), respectively. Our findings suggest that benzene exposure may be associated with hypermethylation in ERCC3, and that genetic variants in EPHX1 may play an important role in epigenetic changes and hematotoxicity among benzene-exposed workers.
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Affiliation(s)
- Caihong Xing
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China
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Occupational solvent exposure, genetic variation of DNA repair genes, and the risk of non-Hodgkin's lymphoma. Eur J Cancer Prev 2013; 21:580-4. [PMID: 22430443 DOI: 10.1097/cej.0b013e328351c762] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The main objective of this study was to test the hypothesis that genetic variations in DNA repair genes may modify the association between occupational exposure to solvents and the risk of non-Hodgkin's lymphoma (NHL). A population-based case-control study was conducted on Connecticut women including 518 histologically confirmed incident NHL cases and 597 controls. Unconditional logistic regression models were used to estimate the odds ratios and effect modification from the 30 single nucleotide polymorphisms in 16 DNA repair genes of the association between solvent exposure and the risk of NHL overall and subtypes. Single nucleotide polymorphisms in MGMT (rs12917) and NBS1 (rs1805794) significantly modified the association between exposure to chlorinated solvents and the risk of NHL (Pfor interaction=0.0003 and 0.0048, respectively). After stratification by major NHL histological subtypes, MGMT (rs12917) modified the association between chlorinated solvents and the risk of diffuse large B-cell lymphoma (Pfor interaction=0.0027) and follicular lymphoma (Pfor interaction=0.0024). A significant interaction was also observed between occupational exposure to benzene and BRCA2 (rs144848) for NHL overall (Pfor interaction=0.0042). Our study results suggest that genetic variations in DNA repair genes modify the association between occupational exposure to solvents and the risk of NHL.
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Xiao S, Gao L, Liu Y, Yu T, Jin C, Pan L, Zhu G, Lu X. Association of genetic polymorphisms in ERCC1 and ERCC2/XPD with risk of chronic benzene poisoning in a Chinese occupational population. Mutat Res 2012; 751:52-8. [PMID: 23147699 DOI: 10.1016/j.mrgentox.2012.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 10/11/2012] [Accepted: 11/05/2012] [Indexed: 11/30/2022]
Abstract
DNA damage induced by benzene and its metabolites is thought of as an important mechanism underlying benzene genotoxicity in chronic benzene poisoning (CBP). Therefore, genetic variation in DNA repair genes may contribute to susceptibility to CBP in the exposed population. Since benzene-induced DNA damages include DNA adducts, we hypothesized that the polymorphisms of ERCC1 (Excision repair cross complementation group 1) and ERCC2/XPD (Excision repair cross complementation group 2/xeroderma pigmentosum group D) are associated with the risk of CBP. A case-control study involving 102 benzene-poisoned patients and 204 none-benzene-poisoned controls occupationally exposed to benzene was carried out in the Northeast region of China. The polymorphisms of codon 118 (rs11615) and C8092A (rs3212986) of ERCC1, codon 751 (rs13181), 312 (rs1799793) and 156 (rs238406) of ERCC2/XPD were genotyped by TaqMan(®) Real-time PCR. The results showed that individuals carrying the ERCC1 codon 118 TT genotype had an increased risk of CBP (OR(adj)=3.390; 95%CI: 1.393-8.253; P=0.007) comparing with its CC genotype. After stratified by smoking, gender and exposure duration we found that the increased risk of CBP associated with the ERCC1 codon 118 TT genotype confined to nonsmokers (OR=3.214; 95% CI: 1.359-7.601; P=0.006), female (OR=3.049; 95% CI: 1.235-7.529; P=0.013) and exposure duration> 12 years (OR=3.750; 95% CI: 1.041-13.513; P=0.035). Since ERCC1 and ERCC2/XPD are both located on chromosome 19q13.3, haplotype analysis of all 5 SNPs was also conducted. However no correlations between the risks of CBP and other genotypes or haplotypes were found. Therefore, our findings suggest an important role of ERCC1 codon 118 polymorphisms for a biomarker to CBP in the Chinese occupational population.
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Affiliation(s)
- Sha Xiao
- Dept. of Toxicology, School of Public Health, China Medical University, Shenyang, PR China
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Siew EL, Chan KM, Williams GT, Ross D, Inayat-Hussain SH. Protection of hydroquinone-induced apoptosis by downregulation of Fau is mediated by NQO1. Free Radic Biol Med 2012; 53:1616-24. [PMID: 22687461 DOI: 10.1016/j.freeradbiomed.2012.05.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 05/26/2012] [Accepted: 05/30/2012] [Indexed: 01/11/2023]
Abstract
The Fau gene (Finkel-Biskis-Reilly murine sarcoma virus (FBR-MuSV)-associated ubiquitously expressed gene) was identified as a potential tumor suppressor gene using a forward genetics approach. Downregulation of Fau by overexpression of its reverse sequence has been shown to inhibit apoptosis induced by DNA-damaging agents. To address a potential role of Fau in benzene toxicity, we investigated the apoptotic effects of hydroquinone (HQ), a major benzene metabolite, in W7.2 mouse thymoma cells transfected with either a plasmid construct expressing the antisense sequence of Fau (rfau) or the empty vector (pcDNA3.1) as a control. HQ induced apoptosis via increased production of reactive oxygen species and DNA damage, measured using dihydroethidine (HE) staining and alkaline Comet assay, respectively, in W7.2 pcDNA3.1 cells. In contrast, when Fau was downregulated by the antisense sequence in W7.2 rfau cells, HQ treatment did not cause DNA damage and oxidative stress and these cells were markedly more resistant to HQ-induced apoptosis. Further investigation revealed that there was an upregulation of NAD(P)H: quinone oxidoreductase 1 (NQO1), a detoxification enzyme for benzene-derived quinones, in W7.2 rfau cells. Compromising cellular NQO1 by use of a specific mechanism-based inhibitor (MAC 220) and NQO1 siRNA resensitized W7.2 rfau cells to HQ-induced apoptosis. Silencing of Fau in W7.2 wild-type cells resulted in increased levels of NQO1, confirming that downregulation of Fau results in NQO1 upregulation which protects against HQ-induced apoptosis.
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Affiliation(s)
- E L Siew
- Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
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Rossner P, Rossnerova A, Spatova M, Beskid O, Uhlirova K, Libalova H, Solansky I, Topinka J, Sram RJ. Analysis of biomarkers in a Czech population exposed to heavy air pollution. Part II: chromosomal aberrations and oxidative stress. Mutagenesis 2012; 28:97-106. [DOI: 10.1093/mutage/ges058] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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35
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Association between XRCC1 single-nucleotide polymorphisms and infertility with idiopathic azoospermia in northern Chinese Han males. Reprod Biomed Online 2012; 25:402-7. [DOI: 10.1016/j.rbmo.2012.06.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 06/20/2012] [Accepted: 06/21/2012] [Indexed: 01/22/2023]
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36
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McHale CM, Zhang L, Smith MT. Current understanding of the mechanism of benzene-induced leukemia in humans: implications for risk assessment. Carcinogenesis 2012; 33:240-52. [PMID: 22166497 PMCID: PMC3271273 DOI: 10.1093/carcin/bgr297] [Citation(s) in RCA: 207] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 11/21/2011] [Accepted: 12/07/2011] [Indexed: 01/01/2023] Open
Abstract
Benzene causes acute myeloid leukemia and probably other hematological malignancies. As benzene also causes hematotoxicity even in workers exposed to levels below the US permissible occupational exposure limit of 1 part per million, further assessment of the health risks associated with its exposure, particularly at low levels, is needed. Here, we describe the probable mechanism by which benzene induces leukemia involving the targeting of critical genes and pathways through the induction of genetic, chromosomal or epigenetic abnormalities and genomic instability, in a hematopoietic stem cell (HSC); stromal cell dysregulation; apoptosis of HSCs and stromal cells and altered proliferation and differentiation of HSCs. These effects modulated by benzene-induced oxidative stress, aryl hydrocarbon receptor dysregulation and reduced immunosurveillance, lead to the generation of leukemic stem cells and subsequent clonal evolution to leukemia. A mode of action (MOA) approach to the risk assessment of benzene was recently proposed. This approach is limited, however, by the challenges of defining a simple stochastic MOA of benzene-induced leukemogenesis and of identifying relevant and quantifiable parameters associated with potential key events. An alternative risk assessment approach is the application of toxicogenomics and systems biology in human populations, animals and in vitro models of the HSC stem cell niche, exposed to a range of levels of benzene. These approaches will inform our understanding of the mechanisms of benzene toxicity and identify additional biomarkers of exposure, early effect and susceptibility useful for risk assessment.
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Affiliation(s)
| | | | - Martyn T. Smith
- Division of Environmental Health Sciences, Genes and Environment Laboratory, School of Public Health, University of California, Berkeley, CA 94720-7356, USA
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Peng D, Jiaxing W, Chunhui H, Weiyi P, Xiaomin W. Study on the cytogenetic changes induced by benzene and hydroquinone in human lymphocytes. Hum Exp Toxicol 2012; 31:322-35. [DOI: 10.1177/0960327111433900] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Benzene (BN) is a prototypical hematotoxicant, genotoxic carcinogen, and ubiquitous environmental pollutant. Although the molecular mechanisms of BN-induced cytotoxicity and genotoxic damage are poorly understood in humans, previous studies suggested that bioactivated BN metabolites are capable of oxidative stress, cell cycle arrest, apoptosis, and DNA damage. The objective of the current study was to investigate the BN-induced cytogenetic changes and underlying mechanisms based on these hypotheses. Peripheral blood lymphocytes (PBLs) might be the targets for BN-induced cytotoxicity and genotoxicity, and therefore DNA damage responses of PBLs after exposure to different concentrations of BN (0.25, 3.5, 50 μmol/L) or BN metabolite, hydroquinone (HQ; 50, 150, 450 μmol/L) were studied in vitro. Microculture tetrazolium assay, flow cytometry, 2′,7′-dichlorodihydrofluorescein-diacetate assay, comet assay, micronuclei assay, and attenuated total reflectance microspectroscope were chosen for this study. Based on the results, we reached the conclusion that different concentrations of BN or HQ significantly inhibited cell growth, induced the arrest of S phase and G2/M phase, and increased late apoptosis in a concentration-dependent manner. Furthermore, evidence was also provided to support the conclusion that BN and HQ induced DNA strand breaks and chromosomal mutations in PBL, which indicated the genotoxicity of BN and HQ. Current evidence has indicated that multiple mechanisms including dysfunction of cell cycle, programmed cell death, oxidative stress, and DNA lesions are likely to contribute to BN-induced cytogenetic changes.
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Affiliation(s)
- D Peng
- Department of Public Health, School of Basic Medical, Hubei University of Medicine, Shiyan, Hubei, PR China
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi, PR China
| | - W Jiaxing
- School of Chemical Project, Beijing University of Chemical Technology, Beijing, PR China
| | - H Chunhui
- Department of Clinical Laboratories, the Affiliated Taihe Hospital, Hubei University of Medicine, Hubei Shiyan, PR China
| | - P Weiyi
- Department of Health Statistics and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, PR China
| | - W Xiaomin
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi, PR China
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Angelini S, Maffei F, Bermejo JL, Ravegnini G, L'insalata D, Cantelli-Forti G, Violante FS, Hrelia P. Environmental exposure to benzene, micronucleus formation and polymorphisms in DNA-repair genes: a pilot study. Mutat Res 2012; 743:99-104. [PMID: 22245109 DOI: 10.1016/j.mrgentox.2011.10.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 09/21/2011] [Accepted: 10/24/2011] [Indexed: 10/14/2022]
Abstract
This report is part of a biomarker study conducted in an Italian population with exposure to environmental benzene ranging from 1.43 to 31.41 μg/m³ (values from personal sampling). DNA damage induced by benzene is the crucial mechanism of its genotoxicity, which leads to chronic benzene poisoning, haematotoxicity and leukaemia. Therefore, genetic variation in DNA-repair genes may modulate susceptibility to benzene-induced DNA damage. In light of this, the effects of polymorphisms in DNA-repair genes (APEX1, hOGG1, NBS1, XPD, XRCC1, and XRCC3) on micronucleus (MN) formation as a biomarker of early biological effects were evaluated. A significantly higher median MN frequency was recorded in traffic wardens than in controls. However, none of the analysed polymorphisms was significantly associated with the median MN frequency. A gene-gender interaction was observed for the APEX1 genotype. The APEX1 variant genotype was associated with significantly lower median MN frequency in men, not in women. Statistical analysis did not reveal any association between the score of the protective alleles - hypothetically pushing the pathway towards optimal DNA-damage repair - and MN. Even though there are some limitations in the study, our results indicate that the general population may be exposed to benzene concentrations higher than the threshold level for air-quality standards in the European Union of 10 μg/m³. Furthermore, urban traffic wardens are exposed to significantly higher levels of benzene than individuals spending most of the time indoors. This higher exposure may contribute to DNA damage, suggesting that benzene might be implicated both as an environmental and occupational risk factor in leukaemia and other haematological diseases. In conclusion, this study suggest the need for (i) regular monitoring of traffic wardens for possible exposure to benzene, as a precautionary step to reduce the associated health risks, and (ii) more comprehensive studies in order to better elucidate the involvement of APEX1 genotypes in benzene genotoxicity.
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Affiliation(s)
- Sabrina Angelini
- Department of Pharmacology, University of Bologna, Via Irnerio 48, Bologna 40126, Italy.
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Tian JF, Peng CH, Yu XY, Yang XJ, Yan HT. Expression and methylation analysis of p15 and p16 in mouse bone marrow cells exposed to 1,4-benzoquinone. Hum Exp Toxicol 2011; 31:718-25. [PMID: 22027503 DOI: 10.1177/0960327111422403] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Benzene is an important industrial chemical. It is also an environmental pollutant recognized as a human carcinogen. Both prenatal and adult exposures to benzene are associated with the development of leukemia. To understand the mechanism of benzene-induced epigenetic variations, we investigated the expression and methylation patterns of CpG (phosphodiester bond between cytosine and guanine) islands in p15 and p16 promoter regions in 1,4-benzoquinone (1,4-BQ)-treated primary cultivated C57BL/6J mouse bone marrow cells in vitro. The cell toxicity of 1,4-BQ was evaluated by cell viability test, real-time PCR was used to measure the mRNA expression levels, and bisulfite sequencing PCR (BSP) was used to look into the methylation patterns. The cell viability test indicates that 1,4-BQ exhibited a dose-dependent toxicity to mouse bone marrow cells. After a 24-h exposure to 1,4-BQ at final concentrations of 0, 0.1, 1, and 10 μmol/L, the mRNA expression of p15 and p16 decreased with the increase in 1,4-BQ concentration. The BSP results gathered from the exposure and the control groups were the same. In summary, despite the observation that short-term exposure to 1,4-BQ primary cultivated mouse bone marrow cells decreased the p15 and p16 transcripts, with no influence by their gene promoter methylation.
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Affiliation(s)
- J-F Tian
- School of Environmental Science and Public Health, Wenzhou Medical College, Zhejiang, China
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Berdelle N, Nikolova T, Quiros S, Efferth T, Kaina B. Artesunate induces oxidative DNA damage, sustained DNA double-strand breaks, and the ATM/ATR damage response in cancer cells. Mol Cancer Ther 2011; 10:2224-33. [PMID: 21998290 DOI: 10.1158/1535-7163.mct-11-0534] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Artesunate, the active agent from Artemisia annua L. used in the traditional Chinese medicine, is being applied as a first-line drug for malaria treatment, and trials are ongoing that include this drug in cancer therapy. Despite increasing interest in its therapeutic application, the mode of cell killing provoked by artesunate in human cells is unknown. Here, we show that artesunate is a powerful inducer of oxidative DNA damage, giving rise to formamidopyrimidine DNA glycosylase-sensitive sites and the formation of 8-oxoguanine and 1,N6-ethenoadenine. Oxidative DNA damage was induced in LN-229 human glioblastoma cells dose dependently and was paralleled by cell death executed by apoptosis and necrosis, which could be attenuated by radical scavengers such as N-acetyl cysteine. Oxidative DNA damage resulted in DNA double-strand breaks (DSB) as determined by γH2AX foci that colocalized with 53BP1. Upon chronic treatment with artesunate, the level of DSB continuously increased over the treatment period up to a steady-state level, which is in contrast to ionizing radiation that induced a burst of DSB followed by a decline due to their repair. Knockdown of Rad51 by short interfering RNA and inactivation of DNA-PK strongly sensitized glioma cells to artesunate. These data indicate that both homologous recombination and nonhomologous end joining are involved in the repair of artesunate-induced DSB. Artesunate provoked a DNA damage response (DDR) with phosphorylation of ATM, ATR, Chk1, and Chk2. Overall, these data revealed that artesunate induces oxidative DNA lesions and DSB that continuously increase during the treatment period and accumulate until they trigger DDR and finally tumor cell death.
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Affiliation(s)
- Nicole Berdelle
- Institute of Toxicology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
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Davis JD, Lin SY. DNA damage and breast cancer. World J Clin Oncol 2011; 2:329-38. [PMID: 21909479 PMCID: PMC3168783 DOI: 10.5306/wjco.v2.i9.329] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/08/2011] [Accepted: 08/15/2011] [Indexed: 02/06/2023] Open
Abstract
Cancer is intimately related to the accumulation of DNA damage, and repair failures (including mutation prone repair and hyperactive repair systems). This article relates current clinical categories for breast cancer and their common DNA damage repair defects. Information is included on the potential for accumulation of DNA damage in the breast tissue of a woman during her lifetime and the role of DNA damage in breast cancer development. We then cover endogenous and exogenous sources of DNA damage, types of DNA damage repair and basic signal transduction pathways for three gene products involved in the DNA damage response system; namely BRCA1, BRIT1 and PARP-1. These genes are often considered tumor suppressors because of their roles in DNA damage response and some are under clinical investigation as likely sources for effective new drugs to treat breast cancers. Finally we discuss some of the problems of DNA damage repair systems in cancer and the conundrum of hyper-active repair systems which can introduce mutations and confer a survival advantage to certain types of cancer cells.
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Affiliation(s)
- Jennifer D Davis
- Jennifer D Davis, Shiaw-Yih Lin, Department of Systems Biology, Unit 950, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
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Shen HY, Liu YQ, Gao J, Zhen HM, Zhu N, Li J. In VitroStudy of DNA Interaction with Melamine and Its Related Compounds. DNA Cell Biol 2011; 30:255-64. [DOI: 10.1089/dna.2010.1095] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hao-Yu Shen
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Yang-Qing Liu
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Jing Gao
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Hui-Min Zhen
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Ning Zhu
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Jia Li
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
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43
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Wu XR, Xue M, Li XF, Wang Y, Wang J, Han QL, Yi ZC. Phenolic metabolites of benzene inhibited the erythroid differentiation of K562 cells. Toxicol Lett 2011; 203:190-9. [PMID: 21414390 DOI: 10.1016/j.toxlet.2011.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 03/06/2011] [Accepted: 03/07/2011] [Indexed: 01/27/2023]
Abstract
Benzene is a common occupational hazard and a ubiquitous environmental pollutant. Benzene exposure at the levels even below 1ppm still showed hematotoxicity. It is widely accepted that the metabolites of benzene play important roles in the benzene toxicity to the hematopoietic system, but little is known about the effects of benzene metabolites on erythropoiesis. In present study, erythroid progenitor-like K562 cells were used to determine the effects of phenolic metabolites of benzene, including phenol, hydroquinone and 1,2,4-benzenetriol, on the erythroid differentiation. After the treatment with these benzene metabolites at the concentrations with no obvious cytotoxicity, the hemin-induced hemoglobin synthesis in K562 cells decreased in a concentration- and time-dependent manner, and the expression of CD71 and GPA protein on the surface of K562 cells was also inhibited. The reverse transcription-PCR was used to determine the mRNA level of the erythroid related genes in the K562 cells that were treated with benzene metabolites. The hemin-induced expression of globin genes, including α-, β- and γ-globin genes, and the gene encoding the heme synthesis enzyme porphobilinogen deaminase was inhibited by benzene metabolites. When the K562 cells were pretreated with benzene metabolites, the hemin-induced expression of two transcription factor genes GATA-1 and NF-E2 was distinctly reduced, and the pre-treatment with benzene metabolites promoted the decrease of the mRNA level of transcription factor gene GATA-2 by hemin. These results indicated that benzene metabolites inhibited the hemin-induced erythroid differentiation through affecting the transcription of the erythroid related genes.
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Affiliation(s)
- Xiao-Rong Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
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44
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Hang B. Formation and repair of tobacco carcinogen-derived bulky DNA adducts. J Nucleic Acids 2010; 2010:709521. [PMID: 21234336 PMCID: PMC3017938 DOI: 10.4061/2010/709521] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 07/16/2010] [Accepted: 09/17/2010] [Indexed: 01/08/2023] Open
Abstract
DNA adducts play a central role in chemical carcinogenesis. The analysis of formation and repair of smoking-related DNA adducts remains particularly challenging as both smokers and nonsmokers exposed to smoke are repetitively under attack from complex mixtures of carcinogens such as polycyclic aromatic hydrocarbons and N-nitrosamines. The bulky DNA adducts, which usually have complex structure, are particularly important because of their biological relevance. Several known cellular DNA repair pathways have been known to operate in human cells on specific types of bulky DNA adducts, for example, nucleotide excision repair, base excision repair, and direct reversal involving O6-alkylguanine DNA alkyltransferase or AlkB homologs. Understanding the mechanisms of adduct formation and repair processes is critical for the assessment of cancer risk resulting from exposure to cigarette smoke, and ultimately for developing strategies of cancer prevention. This paper highlights the recent progress made in the areas concerning formation and repair of bulky DNA adducts in the context of tobacco carcinogen-associated genotoxic and carcinogenic effects.
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Affiliation(s)
- Bo Hang
- Life Sciences Division, Department of Cancer and DNA Damage Responses, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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45
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Galbraith D, Gross SA, Paustenbach D. Benzene and human health: A historical review and appraisal of associations with various diseases. Crit Rev Toxicol 2010; 40 Suppl 2:1-46. [DOI: 10.3109/10408444.2010.508162] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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46
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Lenglet G, David-Cordonnier MH. DNA-Destabilizing Agents as an Alternative Approach for Targeting DNA: Mechanisms of Action and Cellular Consequences. J Nucleic Acids 2010; 2010. [PMID: 20725618 PMCID: PMC2915751 DOI: 10.4061/2010/290935] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Revised: 05/27/2010] [Accepted: 06/03/2010] [Indexed: 01/06/2023] Open
Abstract
DNA targeting drugs represent a large proportion of the actual anticancer drug pharmacopeia, both in terms of drug brands and prescription volumes. Small DNA-interacting molecules share the ability of certain proteins to change the DNA helix's overall organization and geometrical orientation via tilt, roll, twist, slip, and flip effects. In this ocean of DNA-interacting compounds, most stabilize both DNA strands and very few display helix-destabilizing properties. These types of DNA-destabilizing effect are observed with certain mono- or bis-intercalators and DNA alkylating agents (some of which have been or are being developed as cancer drugs). The formation of locally destabilized DNA portions could interfere with protein/DNA recognition and potentially affect several crucial cellular processes, such as DNA repair, replication, and transcription. The present paper describes the molecular basis of DNA destabilization, the cellular impact on protein recognition, and DNA repair processes and the latter's relationships with antitumour efficacy.
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Affiliation(s)
- Gaëlle Lenglet
- INSERM U-837, Jean-Pierre Aubert Research Center (JPARC), Team 4 Molecular and Cellular Targeting for Cancer Treatment, Institute for Research on Cancer of Lille (IRCL), Lille F-59045, France
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