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Ladeira C. The use of effect biomarkers in chemical mixtures risk assessment - Are they still important? MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2024; 896:503768. [PMID: 38821670 DOI: 10.1016/j.mrgentox.2024.503768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/29/2024] [Accepted: 05/13/2024] [Indexed: 06/02/2024]
Abstract
Human epidemiological studies with biomarkers of effect play an invaluable role in identifying health effects with chemical exposures and in disease prevention. Effect biomarkers that measure genetic damage are potent tools to address the carcinogenic and/or mutagenic potential of chemical exposures, increasing confidence in regulatory risk assessment decision-making processes. The micronucleus (MN) test is recognized as one of the most successful and reliable assays to assess genotoxic events, which are associated with exposures that may cause cancer. To move towards the next generation risk assessment is crucial to establish bridges between standard approaches, new approach methodologies (NAMs) and tools for increase the mechanistically-based biological plausibility in human studies, such as the adverse outcome pathways (AOPs) framework. This paper aims to highlight the still active role of MN as biomarker of effect in the evolution and applicability of new methods and approaches in human risk assessment, with the positive consequence, that the new methods provide a deeper knowledge of the mechanistically-based biology of these endpoints.
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Affiliation(s)
- Carina Ladeira
- H&TRC, Health & Technology Research Center, ESTeSL-Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Lisbon 1990-096, Portugal; NOVA National School of Public Health, Public Health Research Centre, Universidade NOVA de Lisboa, Lisbon, Portugal; Comprehensive Health Research Center (CHRC), Lisbon, Portugal.
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Gajski G, Kašuba V, Milić M, Gerić M, Matković K, Delić L, Nikolić M, Pavičić M, Rozgaj R, Garaj-Vrhovac V, Kopjar N. Exploring cytokinesis block micronucleus assay in Croatia: A journey through the past, present, and future in biomonitoring of the general population. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2024; 895:503749. [PMID: 38575251 DOI: 10.1016/j.mrgentox.2024.503749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/06/2024] [Accepted: 03/12/2024] [Indexed: 04/06/2024]
Abstract
In this study, we used the cytokinesis-block micronucleus (CBMN) assay to evaluate the background frequency of cytogenetic damage in peripheral blood lymphocytes of the general population concerning different anthropometric data and lifestyle factors. The background frequency of CBMN assay parameters was analysed in 850 healthy, occupationally non-exposed male and female subjects (average age, 38±11 years) gathered from the general Croatian population from 2000 to 2023. The mean background values for micronuclei (MNi) in the whole population were 5.3±4.3 per 1000 binucleated cells, while the mean frequency of nucleoplasmic bridges (NPBs) was 0.7±1.3 and of nuclear buds (NBUDs) 3.1±3.2. The cut-off value, which corresponds to the 95th percentile of the distribution of 850 individual values, was 14 MNi, 3 NPBs, and 9 NBUDs. Results from our database also showed an association of the tested genomic instability parameters with age and sex but also with other lifestyle factors. These findings underscore the importance of considering several anthropometric and lifestyle factors when conducting biomonitoring studies. Overall, the normal and cut-off values attained here present normal values for the general population that can later serve as baseline values for further human biomonitoring studies either in Croatia or worldwide.
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Affiliation(s)
- Goran Gajski
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia.
| | - Vilena Kašuba
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Mirta Milić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Marko Gerić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Katarina Matković
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Luka Delić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Maja Nikolić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Martina Pavičić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Ružica Rozgaj
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Vera Garaj-Vrhovac
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Nevenka Kopjar
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
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Xi J, Cao Y, Wang Y, You X, Liu W, Wang T, Yin J, Ma J, Wang Z, Wu N, Zhang X, Duan H, Luan Y. PIG-A gene mutation as a mutagenicity biomarker among coke oven workers. Food Chem Toxicol 2023; 178:113872. [PMID: 37271276 DOI: 10.1016/j.fct.2023.113872] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/22/2023] [Accepted: 06/01/2023] [Indexed: 06/06/2023]
Abstract
PIG-A gene mutations can be detected in humans, and PIG-A assays can potentially predict the risk of exposure to carcinogens. However, extensive, population-based studies to validate this are lacking. We studied a cohort of occupational coke oven workers with chronic high exposure to carcinogenic polycyclic aromatic hydrocarbons, which are well-studied genotoxins classified by the IARC as carcinogenic to humans. Peripheral blood erythrocytes of workers were assessed for gene mutations using a PIG-A assay, and chromosome damage using the cytokinesis-block micronucleus test with lymphocytes. Two sample populations from a non-industrialized city and new employees in industrial plants were selected as controls. We observed a significantly elevated PIG-A mutation frequency (MF) and increased frequencies of micronuclei (MN) and nuclear buds (NBUDs) in coke oven workers, compared with levels in the control groups. We found that the coke oven workers with different lengths of service had a relatively high mutation frequency. Overall, the study findings showed that occupational exposure of coke oven workers increases the genetic damage and the PIG-A MF could be a potential biomarker for risk assessment of carcinogen exposure.
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Affiliation(s)
- Jing Xi
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiyi Cao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanhua Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xinyue You
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiying Liu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jingjing Yin
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Junxiang Ma
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, China
| | - Zhenjie Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Nan Wu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xinyu Zhang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huawei Duan
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Yang Luan
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Jing JJ, Zhang LE, Lu WM, Peng Y, Wang L, Liu SH, Wang MJ, Ou SF, Yang J, Zou YF. Household cooking oil type and risk of oral micronucleus frequency in Chinese nonsmokers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 307:119520. [PMID: 35623571 DOI: 10.1016/j.envpol.2022.119520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 05/18/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Household animal fat has been linked to increased incidence of cancers compared with vegetable fat. However, few epidemiological studies have associated these two cooking oil types with precancerous genotoxic effects, such as occurrence of micronuclei (MN). This study aimed to explore the association between oral MN frequency and household cooking oil type and whether the association can be attributed to polycyclic aromatic hydrocarbons (PAHs). We collected information about individual cooking oil use, measured genotoxic effects by MN tests and urinary PAHs metabolites (OHPAHs) in 245 nonsmokers. The associations between household cooking oil type and MN frequency and OHPAHs were analyzed using generalized linear models (GLMs) and logistic regression models, evaluating odds ratios and coefficient (95% confidence intervals) (ORs, 95% Cls; β, 95% Cls). The odds of animal fat consumers, rather than vegetable fat consumers, was positively associated with higher MN frequency (OR = 1.94, P < 0.05). The associations were discovered in participants only using kitchen ventilation (OR = 2.04, P < 0.05). Animal fat consumers had higher total OHPAHs than vegetable fat consumers (1.58 ± 0.22 mg/mol, Cr vs 1.20 ± 0.12 mg/mol, Cr; P = 0.028). Significant correlations were observed between total OHPAHs quartiles and increased MN frequency (β = 0.38, P-trend = 0.026). After stratifying by household cooking oil type, sensitivity analyses showed that the positive association between total OHPAHs quartiles and increased MN frequency was only observed in animal fat consumers (β = 0.61, P-trend = 0.030). In conclusion, usage of household animal fat was associated with an increased odds of oral MN frequency in Chinese nonsmokers and the odds correlated with increased PAHs exposure. This finding supplemented evidence associating cooking oil type with genotoxic effects and explained its association with PAHs exposure.
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Affiliation(s)
- Jia-Jun Jing
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Li-E Zhang
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China; Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Wen-Min Lu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Yang Peng
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China; Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Liang Wang
- Department of Public Health, Robbins College of Health and Human Sciences, Baylor University, Waco, TX, 76798, USA
| | - Shao-Hui Liu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Ming-Jun Wang
- Department of Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Song-Feng Ou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Jie Yang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Yun-Feng Zou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China.
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Cheng W, Pang H, Campen MJ, Zhang J, Li Y, Gao J, Ren D, Ji X, Rothman N, Lan Q, Zheng Y, Leng S, Hu Z, Tang J. Circulatory metabolites trigger ex vivo arterial endothelial cell dysfunction in population chronically exposed to diesel exhaust. Part Fibre Toxicol 2022; 19:20. [PMID: 35313899 PMCID: PMC8939222 DOI: 10.1186/s12989-022-00463-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 03/15/2022] [Indexed: 11/27/2022] Open
Abstract
Background Chronic exposure to diesel exhaust has a causal link to cardiovascular diseases in various environmental and occupational settings. Arterial endothelial cell function plays an important role in ensuring proper maintenance of cardiovascular homeostasis and the endothelial cell dysfunction by circulatory inflammation is a hallmark in cardiovascular diseases. Acute exposure to diesel exhaust in controlled exposure studies leads to artery endothelial cells dysfunction in previous study, however the effect of chronic exposure remains unknown. Results We applied an ex vivo endothelial biosensor assay for serum samples from 133 diesel engine testers (DETs) and 126 non-DETs with the aim of identifying evidence of increased risk for cardiovascular diseases. Environmental monitoring suggested that DETs were exposed to high levels of diesel exhaust aerosol (282.3 μg/m3 PM2.5 and 135.2 μg/m3 elemental carbon). Surprisingly, chronic diesel exhaust exposure was associated with a pro-inflammatory phenotype in the ex vivo endothelial cell model, in a dose-dependent manner with CCL5 and VCAM as most affected genes. This dysfunction was not mediated by reduction in circulatory pro-inflammatory factors but significantly associated with a reduction in circulatory metabolites cGMP and an increase in primary DNA damage in leucocyte in a dose-dependent manner, which also explained a large magnitude of association between diesel exhaust exposure and ex vivo endothelial biosensor response. Exogenous cGMP addition experiment further confirmed the induction of ex vivo biosensor gene expressions in endothelial cells treated with physiologically relevant levels of metabolites cGMP. Conclusion Serum-borne bioactivity caused the arterial endothelial cell dysfunction may attribute to the circulatory metabolites based on the ex vivo biosensor assay. The reduced cGMP and increased polycyclic aromatic hydrocarbons metabolites-induced cyto/geno-toxic play important role in the endothelial cell dysfunction of workers chronic exposure to diesel exhaust. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00463-0.
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Affiliation(s)
- Wenting Cheng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Huanhuan Pang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Matthew J Campen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Jianzhong Zhang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Yanting Li
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Jinling Gao
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Dunqiang Ren
- Department of Respiratory Medicine, Affiliated Hospital of Medical College of Qingdao University, Qingdao University, Qingdao, 266021, Shandong, China
| | - Xiaoya Ji
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, 20850, USA
| | - Qing Lan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, 20850, USA
| | - Yuxin Zheng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Shuguang Leng
- Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA. .,Cancer Control and Population Sciences, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, 87131, USA.
| | - Zeping Hu
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China.
| | - Jinglong Tang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China.
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6
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Cao Y, Xi J, Tang C, Yang Z, Liu W, You X, Feng N, Zhang XY, Wu J, Yu Y, Luan Y. PIG-A gene mutation as a genotoxicity biomaker in polycyclic aromatic hydrocarbon-exposed barbecue workers. Genes Environ 2021; 43:54. [PMID: 34879859 PMCID: PMC8656086 DOI: 10.1186/s41021-021-00230-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/28/2021] [Indexed: 01/02/2023] Open
Abstract
Background The PIG-A gene mutation assay is a valuable tool for measuring in vivo gene mutations in blood cells. The human PIG-A assay, used as a potential genotoxicity biomarker, is minimally invasive, sensitive, and cost-efficient; however, the relationship between carcinogen exposure and PIG-A mutations is not well understood. Methods We investigated the genotoxic effect of red blood cells using PIG-A assay and lymphocyte cytokinesis-block micronucleus test in barbecue restaurant workers (N = 70) exposed to polycyclic aromatic hydrocarbons (PAHs) and self-identified healthy control subjects (N = 56). Urinary PAH metabolites were measured to evaluate internal exposure levels. Results Multivariate Poisson regression showed that the PAH-exposed workers exhibited significantly higher PIG-A mutant frequency (MF) (8.04 ± 6.81 × 10− 6) than did the controls (5.56 ± 5.26 × 10− 6) (RR = 0.707, 95% CI: 0.615–0.812, P < 0.001). These results indicate that PAH exposure is a risk factor for elevated PIG-A MF. The frequencies of micronuclei (MN) and nuclear buds (NBUD) in the PAH-exposed workers (MN: 3.06 ± 2.07 ‰, NBUD: 1.38 ± 1.02 ‰) were also significantly higher than in the controls (MN: 1.46 ± 0.64 ‰, P < 0.001; NBUD: 0.70 ± 0.60 ‰, P < 0.001). Additionally, PIG-A MFs showed better associations with several urinary hydroxylated PAH metabolites (P2-OH-Flu = 0.032, r2-OH-Flu = 0. 268; P2-OH-Phe = 0.022, r2-OH-Phe = 0.286; P3-OH-Phe = 0.0312, r3-OH-Phe = 0.270; P4-OH-Phe = 0.018, r4-OH-Phe = 0.296), while the increase in MN, NPB, and NBUD frequencies was not associated with any OH-PAH metabolites; and high-PAH-exposed workers showed the highest PIG-A MFs. Furthermore, there was a significant association between PIG-A MF and PAH exposure levels (Chi-square test for trend, P = 0.006). Conclusions Our results indicate that an increase in PIG-A MF in barbecue workers could reflect the response to PAH exposure, providing evidence of its potential as a genotoxicity biomarker in human risk assessment. Supplementary Information The online version contains supplementary material available at 10.1186/s41021-021-00230-1.
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Affiliation(s)
- Yiyi Cao
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Jing Xi
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Chuanxi Tang
- Center for Disease Control and Prevention of the Changning District of Shanghai, Shanghai, 200051, People's Republic of China
| | - Ziying Yang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.,Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Weiying Liu
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Xinyue You
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Nannan Feng
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Xin Yu Zhang
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Jingui Wu
- Center for Disease Control and Prevention of the Changning District of Shanghai, Shanghai, 200051, People's Republic of China
| | - Yingxin Yu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.,Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Yang Luan
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China.
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Bai Y, Guan X, Wei W, Feng Y, Meng H, Li G, Li H, Li M, Wang C, Fu M, Jie J, Zhang X, He M, Guo H. Effects of polycyclic aromatic hydrocarbons and multiple metals co-exposure on the mosaic loss of chromosome Y in peripheral blood. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125519. [PMID: 33676251 DOI: 10.1016/j.jhazmat.2021.125519] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Mosaic loss of chromosome Y (mLOY) is an indicator of genome instability, but the environmental stressors of mLOY remained largely unknown. In this study, we detected the internal exposure levels of 11 polycyclic aromatic hydrocarbon (PAH) metabolites and 22 metals among 888 coke-oven workers, and calculated their blood mLOY based on genome-wide SNP genotyping data and presented as median log R ratio (mLRR-Y). The generalized linear model (GLM), LASSO, and Bayesian kernel machine regression (BKMR), were used to select mLOY-relevant chemicals. The results of these models consistently suggested the negative dose-response relationships of urinary 1-hydroxynaphthalene (1-OHNa), antimony (Sb), and molybdenum (Mo) with mLRR-Y. There were no pairwise interactions between these three chemicals (Pinteraction > 0.05), but subjects with high exposure to ≥ 2 kinds of these chemicals showed reducing mLRR-Y [β(95%CI) = - 0.015(- 0.023, - 0.008)], increasing oxidative DNA damage (marked by 8-hydroxydeoxyguanosine) [β(95%CI) = 0.625(0.454, 0.796)] and chromosome damage (marked by micronucleus frequency in lymphocytes) [frequency ratio (FR) and 95%CI = 1.146(1.047, 1.225)] than those with low exposure to all these chemicals. The combined effects of 1-OHNa, Sb, and Mo on elevating DNA damage may partly explain their joint effects on increased blood mLOY. These results provided a new insight into environmental hazards co-exposure on chromosome-Y deletions.
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Affiliation(s)
- Yansen Bai
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xin Guan
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wei Wei
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yue Feng
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hua Meng
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Guyanan Li
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hang Li
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Mengying Li
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chenming Wang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ming Fu
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiali Jie
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaomin Zhang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Meian He
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Huan Guo
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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8
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Mišík M, Nersesyan A, Kment M, Ernst B, Setayesh T, Ferk F, Holzmann K, Krupitza G, Knasmueller S. Micronucleus assays with the human derived liver cell line (Huh6): A promising approach to reduce the use of laboratory animals in genetic toxicology. Food Chem Toxicol 2021; 154:112355. [PMID: 34147571 DOI: 10.1016/j.fct.2021.112355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/11/2021] [Accepted: 06/13/2021] [Indexed: 01/22/2023]
Abstract
The inadequate representation of enzymes which catalyze the activation/detoxification of xenobiotics in cells that are currently used in genotoxicity testing of chemicals leads to a high number of false positive results and the number of follow up studies with rodents could be reduced by use of more reliable in vitro models. We found earlier that several xenobiotic drug metabolizing enzymes are represented in the human derived liver cell line Huh6 and developed a protocol for micronucleus (MN) experiments which is in agreement with the current OECD guideline. This protocol was used to test 23 genotoxic and non-genotoxic reference chemicals; based on these results and of earlier findings (with 9 chemicals) we calculated the predictive value of the assay for the detection of genotoxic carcinogens. We found a sensitivity of 80% and a specificity of 94% for a total number of 32 chemicals; comparisons with results obtained with other in vitro assays show that the validity of MN tests with Huh6 is higher as that of other experimental models. These results are promising and indicate that the use of Huh6 cells in genetic toxicology may contribute to the reduction of the use of laboratory rodents; further experimental work to confirm this assumption is warranted.
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Affiliation(s)
- Miroslav Mišík
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Armen Nersesyan
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Michael Kment
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Benjamin Ernst
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Tahereh Setayesh
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Franziska Ferk
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Klaus Holzmann
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Georg Krupitza
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
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Kargar-Shouroki F, Miri M, Zare Sakhvidi MJ, Hosseini Sangchi SZ, Madadizadeh F. Genotoxic effect of exposure to polycyclic aromatic hydrocarbons (PAHs) in asphalt workers. EXCLI JOURNAL 2021; 20:686-697. [PMID: 33883991 PMCID: PMC8056049 DOI: 10.17179/excli2021-3487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/03/2021] [Indexed: 11/10/2022]
Abstract
Asphalt workers are at risk due to exposure to asphalt fumes containing polycyclic aromatic hydrocarbons (PAHs). The main purpose of this study was to measure the urinary metabolite of PAHs and to determine its effect on micronucleus (MN) formation as an indicator of genotoxic damage. In this cross-sectional study, the MN frequency in 48 male asphalt workers exposed to PAHs was measured and compared with 48 male non-exposed employees. PAHs exposure was evaluated by determining urinary 1-Hydroxypyrene (1-OHP). The mean concentrations of 1-OHP in the exposed and non-exposed groups were 0.58 ± 0.41 μmol/mol creatinine and 0.38 ± 0.25 μmol/mol creatinine, respectively. 1-OHP concentration was significantly higher in smokers compared with non-smokers in both exposed and non-exposed groups. Moreover, the mean MN frequency in the exposed group was significantly higher than in the non-exposed group. The MN frequency was significantly higher in asphalt workers with a work history of ≥ 15 years compared to workers with lower work history. In a fully adjusted model, there was a statistically significant association between exposure to PAHs, with MN and 1-OHP concentration, and between smoking status with 1-OHP. The findings of the present study indicated that occupational exposure to PAHs was associated with increased urinary 1-OHP as well as DNA damage in the asphalt workers.
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Affiliation(s)
- Fatemeh Kargar-Shouroki
- Occupational Health Research Center, Department of Occupational Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Miri
- Non-Communicable Diseases Research Center, Department of Environmental Health, School of Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Mohammad Javad Zare Sakhvidi
- Occupational Health Research Center, Department of Occupational Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Seyedeh Zahra Hosseini Sangchi
- Occupational Health Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Farzan Madadizadeh
- Research Center of Prevention and Epidemiology of Non-Communicable Disease, Department of Biostatistics and Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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10
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Sopian NA, Jalaludin J, Abu Bakar S, Hamedon TR, Latif MT. Exposure to Particulate PAHs on Potential Genotoxicity and Cancer Risk among School Children Living Near the Petrochemical Industry. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052575. [PMID: 33806616 PMCID: PMC7967639 DOI: 10.3390/ijerph18052575] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 01/19/2023]
Abstract
This study aimed to assess the association of exposure to particle-bound (PM2.5) polycyclic aromatic hydrocarbons (PAHs) with potential genotoxicity and cancer risk among children living near the petrochemical industry and comparative populations in Malaysia. PM2.5 samples were collected using a low-volume sampler for 24 h at three primary schools located within 5 km of the industrial area and three comparative schools more than 20 km away from any industrial activity. A gas chromatography-mass spectrometer was used to determine the analysis of 16 United States Environmental Protection Agency (USEPA) priority PAHs. A total of 205 children were randomly selected to assess the DNA damage in buccal cells, employing the comet assay. Total PAHs measured in exposed and comparative schools varied, respectively, from 61.60 to 64.64 ng m-3 and from 5.93 to 35.06 ng m-3. The PAH emission in exposed schools was contributed mainly by traffic and industrial emissions, dependent on the source apportionment. The 95th percentiles of the incremental lifetime cancer risk estimated using Monte Carlo simulation revealed that the inhalation risk for the exposed children and comparative populations was 2.22 × 10-6 and 2.95 × 10-7, respectively. The degree of DNA injury was substantially more severe among the exposed children relative to the comparative community. This study reveals that higher exposure to PAHs increases the risk of genotoxic effects and cancer among children.
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Affiliation(s)
- Nor Ashikin Sopian
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Juliana Jalaludin
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
- Correspondence: ; Tel.: +603-97692401
| | - Suhaili Abu Bakar
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Titi Rahmawati Hamedon
- Department of Community Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Mohd Talib Latif
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia;
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Combustion-derived particles from biomass sources differently promote epithelial-to-mesenchymal transition on A549 cells. Arch Toxicol 2021; 95:1379-1390. [PMID: 33481051 PMCID: PMC8032642 DOI: 10.1007/s00204-021-02983-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 01/06/2021] [Indexed: 01/26/2023]
Abstract
Combustion-derived particles (CDPs), due to the presence in their composition of several toxic and carcinogenic chemical compounds, such as polycyclic aromatic hydrocarbons (PAHs) and metals, are linked to several respiratory diseases, including lung cancer. Epithelial-to-mesenchymal transition (EMT) is a crucial step in lung cancer progression, involving several morphological and phenotypical changes. The study aims to investigate how exposure to CDPs from different biomass sources might be involved in cancer development, focusing mainly on the effects linked to EMT and invasion on human A549 lung cells. Biomass combustion-derived particles (BCDPs) were collected from a stove fuelled with pellet, charcoal or wood, respectively. A time course and dose response evaluation on cell viability and pro-inflammatory response was performed to select the optimal conditions for EMT-related studies. A significant release of IL-8 was found after 72 h of exposure to 2.5 μg/cm2 BCDPs. The EMT activation was then examined by evaluating the expression of some typical markers, such as E-cadherin and N-cadherin, and the possible enhanced migration and invasiveness. Sub-acute exposure revealed that BCDPs differentially modulated cell viability, migration and invasion, as well as the expression of proteins linked to EMT. Results showed a reduction in the epithelial marker E-cadherin and a parallel increase in the mesenchymal markers N-cadherin, mainly after exposure to charcoal and wood. Migration and invasion were also increased. In conclusion, our results suggest that BCDPs with a higher content of organic compounds (e.g. PAHs) in their chemical composition might play a crucial role in inducing pro-carcinogenic effects on epithelial cells.
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Martínez-Valenzuela C, Huichapan J, Ortega LD, Irineo AB, Zenteno E, Ruiz-Ramos R. Nuclear abnormalities in umbilical cord blood lymphocytes of newborns from the Ahome and Guasave municipalities in Sinaloa, Mexico. J Obstet Gynaecol Res 2020; 47:968-977. [PMID: 33372370 DOI: 10.1111/jog.14624] [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: 01/15/2020] [Revised: 10/15/2020] [Accepted: 12/10/2020] [Indexed: 11/29/2022]
Abstract
AIM We measured the frequency of nuclear abnormalities of 210 blood samples from the umbilical cord, since human fetuses are exposed to environmental mixtures of pesticides that induce DNA damage. METHODS The determinations were made through the micronucleus assay test in lymphocytes from the umbilical cord blood of newborns whose mothers live in Ahome (n = 105) and Guasave (n = 105), Sinaloa, Mexico. RESULTS The average frequency of anomalies in 1000 cells were, respectively: micronucleus 0.4 vs. 2.9, pyknotic cells 18.3 vs. 109.2, chromatin condensation 7.7 vs. 150.1, karyolitic cells 1.8 vs. 24.4, and binucleated cells 4.9 vs. 74.6. The calculated Pearson correlation factors of nuclear abnormality frequencies between both municipalities were low and negative, suggesting that they did not correlate between the Ahome and Guasave newborns and indicating a higher number of mothers exposed in Guasave. CONCLUSION Our data suggest that monitoring nuclear abnormalities in umbilical cord blood samples could be a useful tool to identify transplacental mutagens perfusion that is being discharged into the local environment.
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Affiliation(s)
- Carmen Martínez-Valenzuela
- Institute for Research in Environment and Health, Autonomous University of Occident, Bulevar Macario Gaxiola y Carretera Internacional, Los Mochis, Sinaloa, Mexico
| | - José Huichapan
- Institute for Research in Environment and Health, Autonomous University of Occident, Bulevar Macario Gaxiola y Carretera Internacional, Los Mochis, Sinaloa, Mexico
| | - Luis Daniel Ortega
- Department of Biological Sciences, Popular Autonomous University of the State of Puebla, 13 Poniente 1927 Colonia Barrio de Santiago, Puebla, Mexico
| | - Ana Bertha Irineo
- Faculty of Medicine, Autonomous University of Occident, Bulevar Macario Gaxiola y Carretera Internacional, Los Mochis, Sinaloa, Mexico
| | - Edgar Zenteno
- Faculty of Medicine, National Autonomous University of Mexico, Ciudad Universitaria, Coyoacán, México City, Mexico
| | - Rubén Ruiz-Ramos
- Faculty of Medicine, Veracruz University, Agustín de Iturbide S/N, Zona Centro, Veracruz, Mexico
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The genotoxicity of an organic solvent mixture: A human biomonitoring study and translation of a real-scenario exposure to in vitro. Regul Toxicol Pharmacol 2020; 116:104726. [PMID: 32659246 DOI: 10.1016/j.yrtph.2020.104726] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/16/2020] [Accepted: 07/02/2020] [Indexed: 01/10/2023]
Abstract
This study aimed to evaluate occupational exposure to a styrene and xylene mixture through environmental exposure assessment and identify the potential genotoxic effects through biological monitoring. Secondly, we also exposed human peripheral blood cells in vitro to both xylene and styrene either alone or in mixture at concentrations found in occupational settings in order to understand their mechanism of action. The results obtained by air monitoring were below the occupational exposure limits for both substances. All biomarkers of effect, except for nucleoplasmic bridges, had higher mean values in workers (N = 17) compared to the corresponding controls (N = 17). There were statistically significant associations between exposed individuals and the presence of nuclear buds and oxidative damage. As for in vitro results, there was no significant influence on primary DNA damage in blood cells as evaluated by the comet assay. On the contrary, we did observe a significant increase of micronuclei and nuclear buds, but not nucleoplasmic bridges upon in vitro exposure. Taken together, both styrene and xylene have the potential to induce genomic instability either alone or in combination, showing higher effects when combined. The obtained data suggested that thresholds for individual chemicals might be insufficient for ensuring the protection of human health.
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Pedroso-Fidelis GDS, Farias HR, Mastella GA, Boufleur-Niekraszewicz LA, Dias JF, Alves MC, Silveira PCL, Nesi RT, Carvalho F, Zocche JJ, Pinho RA. Pulmonary oxidative stress in wild bats exposed to coal dust: A model to evaluate the impact of coal mining on health. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 191:110211. [PMID: 31978763 DOI: 10.1016/j.ecoenv.2020.110211] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/11/2020] [Accepted: 01/12/2020] [Indexed: 06/10/2023]
Abstract
This study aimed to verify possible alterations involving histological and oxidative stress parameters in the lungs of wild bats in the Carboniferous Basin of Santa Catarina (CBSC) state, Southern Brazil, as a means to evaluate the impact of coal dust on the health of wildlife. Specimens of frugivorous bat species Artibeus lituratus and Sturnira lilium were collected from an area free of coal dust contamination and from coal mining areas. Chemical composition, histological parameters, synthesis of oxidants and antioxidant enzymes, and oxidative damage in the lungs of bats were analyzed. Levels of Na, Cl, Cu, and Br were higher in both species collected in the CBSC than in the controls. Levels of K and Rb were higher in A. lituratus, and levels of Si, Ca, and Fe were higher in S. lilium collected in the carboniferous basin. Both bat species inhabiting the CBSC areas exhibited an increase in the degree of pulmonary emphysema compared to their counterparts collected from control areas. Sturnira lilium showed increased reactive oxygen species (ROS) and 2',7'-dichlorofluorescein (DCF) levels, while A. lituratus showed a significant decrease in nitrite levels in the CBSC samples. Superoxide dismutase (SOD) activity did not change significantly; however, the activity of catalase (CAT) and levels of glutathione (GSH) decreased in the A. lituratus group from CBSC compared to those in the controls. There were no differences in NAD(P)H quinone dehydrogenase 1 protein (NQO1) abundance or nitrotyrosine expression among the different groups of bats. Total thiol levels showed a significant reduction in A. lituratus from CBSC, while the amount of malondialdehyde (MDA) was higher in both A. lituratus and S. lilium groups from coal mining areas. Our results suggested that bats, especially A. lituratus, living in the CBSC could be used as sentinel species for harmful effects of coal dust on the lungs.
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Affiliation(s)
- Giulia Dos Santos Pedroso-Fidelis
- Laboratory of Experimental Physiopathology, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Hémelin Resende Farias
- Laboratory of Experimental Physiopathology, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Gustavo Antunes Mastella
- Laboratory of Neurosciences, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Liana Appel Boufleur-Niekraszewicz
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Johnny Ferraz Dias
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marcio Correa Alves
- Laboratório de Ecologia de Paisagem e de Vertebrados, Programa de Pós-Graduação em Ciências Ambientais, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Physiopathology, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Renata Tiscoski Nesi
- Laboratory of Exercise Biochemistry in Health, Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Fernando Carvalho
- Laboratório de Zoologia e Ecologia de Vertebrados, Programa de Pós-Graduação em Ciências Ambientais, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Jairo José Zocche
- Laboratório de Ecologia de Paisagem e de Vertebrados, Programa de Pós-Graduação em Ciências Ambientais, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil.
| | - Ricardo Aurino Pinho
- Laboratory of Exercise Biochemistry in Health, Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
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15
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Cheng W, Liu Y, Tang J, Duan H, Wei X, Zhang X, Yu S, Campen MJ, Han W, Rothman N, Belinsky SA, Lan Q, Zheng Y, Leng S. Carbon content in airway macrophages and genomic instability in Chinese carbon black packers. Arch Toxicol 2020; 94:761-771. [PMID: 32076763 DOI: 10.1007/s00204-020-02678-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 02/11/2020] [Indexed: 01/15/2023]
Abstract
Carbon black (CB) particulates as virtually pure elemental carbon can deposit deep in the lungs of humans. International Agency for Research on Cancer classified CB as a Group 2B carcinogen due to inconclusive human evidence. A molecular epidemiological study was conducted in an established cohort of CB packers (CBP) to assess associations between CB exposure and genomic instability in peripheral lymphocytes using cytokinesis-block micronucleus assay (CBMN). Carbon content in airway macrophages (CCAM) was quantified as a bio-effective dosimeter for chronic CB exposure. Dose-response observed in CBPs was compared to that seen in workers exposed to diesel exhaust. The association between CB exposure status and CBMN endpoints was identified in 85 CBPs and 106 non-CBPs from a 2012 visit and replicated in 127 CBPs and 105 non-CBPs from a 2018 visit. The proportion of cytoplasm area occupied by carbon particles in airway macrophages was over fivefold higher in current CBPs compared to non-CBPs and was associated with CBMN endpoints in a dose-dependent manner. CB aerosol and diesel exhaust shared the same potency of inducing genomic instability in workers. Circulatory pro-inflammatory factors especially TNF-α was found to mediate associations between CB exposure and CBMN endpoints. In vitro functional validation supported the role of TNF-α in inducing genomic instability. An estimated range of lower limits of benchmark dose of 4.19-7.28% of CCAM was recommended for risk assessment. Chronic CB exposure increased genomic instability in human circulation and this provided novel evidence supporting its reclassification as a human carcinogen.
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Affiliation(s)
- Wenting Cheng
- School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Yuansheng Liu
- School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Jinglong Tang
- School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Huawei Duan
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaoran Wei
- School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Xiao Zhang
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shanfa Yu
- Henan Institute of Occupational Medicine, Zhengzhou, Henan, China.,Henan Medical College, Zhengzhou, Henan, China
| | - Matthew J Campen
- College of Pharmacy, University of New Mexico, Albuquerque, NM, USA
| | - Wei Han
- Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, China
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Steven A Belinsky
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Qing Lan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Shuguang Leng
- School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China.
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Liu Y, Li X, Zhang B, Fu Y, Yang A, Zhang H, Zhang H, Niu Y, Nie J, Yang J. CYP1A1 methylation mediates the effect of smoking and occupational polycyclic aromatic hydrocarbons co-exposure on oxidative DNA damage among Chinese coke-oven workers. Environ Health 2019; 18:69. [PMID: 31358014 PMCID: PMC6664755 DOI: 10.1186/s12940-019-0508-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Multiple factors, including co-exposure between lifestyle and environmental risks, are important in susceptibility to oxidative DNA damage. However, the underlying mechanism is not fully understood. This study was undertaken to evaluate whether Cytochrome P4501A1 (CYP1A1) methylation can mediate the co-exposure effect between smoking and occupational polycyclic aromatic hydrocarbons (PAH) in development of oxidative DNA damage. METHODS We explored the associations between smoking and occupational PAH co-exposure effect, CYP1A1 methylation and oxidative DNA damage among 500 workers from a coke-oven plant in China. Urine biomarkers of PAH exposure (1-hydroxypyrene, 1-OHP; 2-hydroxynaphthalene, 2-NAP; 2-hydroxyfluorene, 2-FLU; and 9-hydroxyphenanthren, 9-PHE) and a marker of oxidative DNA damage (8-hydroxy- 2'- deoxyguanosine, 8-OHdG) were measured by high performance liquid chromatography. CYP1A1 methylation was measured by pyrosequencing. Finally, mediation analysis was performed to investigate whether CYP1A1 methylation mediated smoking and occupational PAH co-exposure effect on oxidative DNA damage. RESULTS We observed significant associations of smoking and 1-OHP co-exposure with CYP1A1 hypomethylation (OR: 1.87, 95% CI: 1.01-3.47) and high 8-OHdG (OR: 2.13, 95% CI: 1.14-3.97). There was a significant relationship between CYP1A1 hypomethylation and high 8-OHdG (1st vs. 3rd tertile = 1.58, 95% CI: 1.01-2.47, P for trend = 0.046). In addition, mediation analysis suggested CYP1A1 hypomethylation could explain 13.6% of effect of high 8-OHdG related to smoking and 1-OHP co-exposure. CONCLUSIONS Our findings suggested that the co-exposure effect of smoking and occupational PAH could increase the risk of oxidative DNA damage by a mechanism partly involving CYP1A1 hypomethylation.
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Affiliation(s)
- Yanli Liu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
- Department of Preventive Medicine, School of Public Health and Management, Hubei University of Medicine, Shiyan, Hubei, China
| | - Xuejing Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
| | - Bin Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
| | - Ye Fu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
| | - Aimin Yang
- Hong Kong Institute of Diabetes and Obesity, the Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Hongjie Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
| | - Huitao Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
| | - Yingying Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
| | - Jisheng Nie
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China
| | - Jin Yang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Xinjiannan Road 56, Taiyuan, 030001, Shanxi, China.
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Bonassi S, Fenech M. Micronuclei and Their Association with Infertility, Pregnancy Complications, Developmental Defects, Anaemias, Inflammation, Diabetes, Chronic Kidney Disease, Obesity, Cardiovascular Disease, Neurodegenerative Diseases and Cancer. THE MICRONUCLEUS ASSAY IN TOXICOLOGY 2019. [DOI: 10.1039/9781788013604-00038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Micronuclei (MN) are a strong cytogenetic indicator of a catastrophic change in the genetic structure and stability of a cell because they originate from either chromosome breaks or whole chromosomes that have been lost from the main nucleus during cell division. The resulting genetic abnormalities can to lead to cellular malfunction, altered gene expression and impaired regenerative capacity. Furthermore, MN are increased as a consequence of genetic defects in DNA repair, deficiency in micronutrients required for DNA replication and repair and exposure to genotoxic chemicals and ultraviolet or ionising radiation. For all of these reasons, the measurement of MN has become one of the best-established methods to measure DNA damage in humans at the cytogenetic level. This chapter is a narrative review of the current evidence for the association of increased MN frequency with developmental and degenerative diseases. In addition, important knowledge gaps are identified, and recommendations for future studies required to consolidate the evidence are provided. The great majority of published studies show a significant association of increased MN in lymphocytes and/or buccal cells with infertility, pregnancy complications, developmental defects, anaemias, inflammation, diabetes, cardiovascular disease, kidney disease, neurodegenerative diseases and cancer. However, the strongest evidence is from prospective studies showing that MN frequency in lymphocytes predicts cancer risk and cardiovascular disease mortality.
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Savchenko YA, Minina VI, Bakanova ML, Glushkov AN. Genotoxic and Carcinogenic Effects of Industrial Factors in Coal Mining and Coal-Processing Industry (Review). RUSS J GENET+ 2019. [DOI: 10.1134/s1022795419060140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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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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Liu Y, Zhang H, Zhang H, Niu Y, Fu Y, Nie J, Yang A, Zhao J, Yang J. Mediation effect of AhR expression between polycyclic aromatic hydrocarbons exposure and oxidative DNA damage among Chinese occupational workers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:972-977. [PMID: 30248604 DOI: 10.1016/j.envpol.2018.09.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 07/31/2018] [Accepted: 09/03/2018] [Indexed: 06/08/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAH) are well-known to be carcinogenic and the mechanisms that it contributes to oxidative DNA damage and aryl hydrocarbon receptor (AhR)-dependent induction are also well understood. However, little is known about the associations between PAH exposure, AhR expression, and oxidative DNA damage. We investigated their associations of AhR expression and oxidative DNA damage related to PAH exposure among 310 workers from a coke-oven plant in China. Urine biomarkers of PAH exposure (2-hydroxynaphthalene, 2-NAP; 2-hydroxyfluorene, 2-FLU; 9-hydroxyphenanthren, 9-PHE; and 1-hydroxypyrene, 1-OHP) and a marker of oxidative damage (8-hydroxy- 2'- deoxyguanosine, 8-OHdG) were measured by high performance liquid chromatography. AhR expression in venous blood was measured by reverse transcription -polymerase chain reaction. The results showed that increasing levels of urinary 1-OHP was positively associated with high 8-OHdG (OR (95% CI) was 4.01 (1.41-11.45) for 4th quartile, compared with 1st quartile, P for trend = 0.013). The similar associations were also found between urinary 1-OHP and high-AhR expressions (4th vs. 1st quartile = 3.50, 95% CI: 1.24-9.87, P for trend = 0.029). A significant association between AhR expression and high 8-OHdG was also found (4th vs. 1st quartile = 2.44, 95% CI: 1.05-5.70, P for trend = 0.027). In addition, mediation analysis showed the AhR expression could explain 35.9% of the association of oxidative DNA damage related to PAH exposure. Our findings implicated that the association between PAH exposure and oxidative DNA damage may be mediated by AhR expression among Chinese occupational workers.
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Affiliation(s)
- Yanli Liu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Hongjie Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Huitao Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Yingying Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Ye Fu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Jisheng Nie
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Aimin Yang
- School of Public Health, The University of Hong Kong, Hong Kong, China; Institute of Epidemiology and Statistics, School of Public Health, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Jinzhu Zhao
- Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430030, China
| | - Jin Yang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China.
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21
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Cai TJ, Lu X, Tian XL, Zhao H, Li S, Feng JB, Chen DQ, Tian M, Liu QJ. Effects of age and gender on the baseline and 2 Gy 60 Co γ-ray-induced nucleoplasmic bridges frequencies in the peripheral blood lymphocytes of Chinese population. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 832-833:29-34. [DOI: 10.1016/j.mrgentox.2018.06.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 05/30/2018] [Accepted: 06/06/2018] [Indexed: 12/20/2022]
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22
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Güzel Bayülken D, Bostancıoğlu RB, Koparal AT, Ayaz Tüylü B, Dağ A, Benkli K. Assessment of in vitro cytotoxic and genotoxic activities of some trimethoprim conjugates. Cytotechnology 2018; 70:1051-1059. [PMID: 29335807 PMCID: PMC6021285 DOI: 10.1007/s10616-018-0187-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 01/02/2018] [Indexed: 10/18/2022] Open
Abstract
Trimethoprim, a commonly used antibacterial agent, is widely applied in the treatment of variety of infections in human. A few studies have demonstrated an extensive exposure of man to antibiotics, but there is still a lack of data for cytotoxic effects including nephrotoxicity, gastrointestinal toxicity, hematotoxicity, neurotoxicity and ototoxicity. The main purpose behind this study was to determine cytotoxic and genotoxic activities of trimethoprim (1), trimethoprim with maleic acid (2) and trimethoprim in conjugation with oxalic acid dihydrate (3). The cytotoxic effects of these three conjugates were elucidated by employing 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoium bromide (MTT) assay using embryonic rat fibroblast-like cell line (F2408) and H-ras oncogene activated embryonic rat fibroblast-like cancer cell line (5RP7). Additionally, determination of genotoxic activity of these three compounds were studied by using cytokinesis blocked micronucleus assay (CBMN) in human lymphocytes. The results demonstrated that trimethoprim alone and its combination with other compounds are able to induce both cytotoxic and genotoxic damage on cultured cells (F2408, 5RP7, human lymphocytes).
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Affiliation(s)
- Devrim Güzel Bayülken
- Department of Biology, Faculty of Sciences, Anadolu University, 26470 Eskisehir, Turkey
| | | | - A. Tansu Koparal
- Department of Biology, Faculty of Sciences, Anadolu University, 26470 Eskisehir, Turkey
| | - Berrin Ayaz Tüylü
- Department of Biology, Faculty of Sciences, Anadolu University, 26470 Eskisehir, Turkey
| | - Aydan Dağ
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bezmialem Vakif University, 34093 Istanbul, Turkey
| | - Kadriye Benkli
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bezmialem Vakif University, 34093 Istanbul, Turkey
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23
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Mendes LS, Saska S, Coelho F, Capote TSDO, Scarel-Caminaga RM, Marchetto R, Carrodeguas RG, Gaspar AMM, Rodríguez MA. Injectable
β
-TCP/MCPM cement associated with mesoporous silica for bone regeneration: characterization and toxicity evaluation. Biomed Mater 2018; 13:025023. [DOI: 10.1088/1748-605x/aa9085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Wang Y, Jia Y, Yan L, Fu J, Hao M, Chen W, Yao B, Zhao P, Zhou Z. Clusterin and neuropilin-2 as potential biomarkers of tumor progression in benzo[a]pyrene-transformed 16HBE cells xenografted nude mouse model. Chem Biol Interact 2017; 275:145-151. [PMID: 28784314 DOI: 10.1016/j.cbi.2017.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/24/2017] [Accepted: 08/02/2017] [Indexed: 01/01/2023]
Abstract
Benzo[a]pyrene (BaP) is a ubiquitous environment contaminant and its exposure could increase incidence of human lung cancer. In order to confirm and compare potential biomarkers of BaP-induce carcinogenesis and tumor progression, time-dependent changes of clusterin (CLU) and neuropilin-2 (NRP2) levels were evaluated in sera of BaP-transformed 16HBE cell line T-16HBE-C1 cells xenografted nude mice. Performance of CLU and NRP2 on tissue classification and tumor progression forecast was also calculated. Levels of CLU and NRP2 were significant elevated in both culture supernatant of T-16HBE-C1 cells and sera of T-16HBE-C1 cells xenografted nude mice compared with control. CLU and NRP2 were both found positively stained in tumor tissue. CLU and NRP2 alone could well predicate tumor progression in nude mice and CLU appeared to be more sensitive than NRP2. When both of them combined, performance of predication would improve. In conclusion, CLU and NRP2 could serve as potential biomarkers of tumor progression in nude mice xenografted with T-16HBE-C1 cells.
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Affiliation(s)
- Yu Wang
- Department of Toxicology, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China
| | - Yongrui Jia
- Medical and Healthy Analytical Center, Peking University Health Science Center, Beijing 100191, PR China
| | - Lailai Yan
- Central Laboratory, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China
| | - Juanling Fu
- Department of Toxicology, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China
| | - Mingmei Hao
- Department of Toxicology, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China
| | - Wen Chen
- Department of Toxicology, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Biyun Yao
- Department of Toxicology, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China
| | - Peng Zhao
- Department of Toxicology, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China.
| | - Zongcan Zhou
- Department of Toxicology, School of Public Health, Peking University Health Science Center, Beijing 100191, PR China.
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Nairy RK, Bhat NN, Sanjeev G, Yerol N. DOSE-RESPONSE STUDY USING MICRONUCLEUS CYTOME ASSAY: A TOOL FOR BIODOSIMETRY APPLICATION. RADIATION PROTECTION DOSIMETRY 2017; 174:79-87. [PMID: 26994094 DOI: 10.1093/rpd/ncw045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 02/03/2016] [Indexed: 06/05/2023]
Abstract
The present study is aimed at obtaining in vitro dose-response data for the induction of micronucleus (MN) and nucleoplasmic bridges (NPBs) in human lymphocytes using 60Co-gamma rays and 8 MeV pulsed electron beam. An attempt was made to validate the possibility of applying NPBs as new biodosimetry endpoint in the dose range of 0-6 Gy. A total of 1000 binucleated cells (BNCs) per dose point were evaluated for the frequency of MN and NPBs. From the study, it is clear that the dose-response increase of MN and NPBs is linear quadratic in nature. The study provides linear and quadratic parameter for biodosimetry application. The relative biological effectiveness value of the 8 MeV electron beam was estimated using slope values and is found to be 1.18 ± 0.01 for MN/BNCs, 1.27 ± 0.02 for the fraction of BNCs with MN, 1.16 ± 0.13 for MN/(BNCs with MN) and 1.09±0.01 for NPBs.
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Affiliation(s)
- Rajesha K Nairy
- Depatment of Physics, P.A College of Engineering, Mangalore 574 153, Karnataka, India
| | - Nagesh N Bhat
- RP & AD, Bhabha Atomic Research Center, Mumbai 400 085, Maharashtra, India
| | - Ganesh Sanjeev
- Depatment of Studies in Physics, Mangalore University, Mangalagangotri 574 199, Karnataka, India
| | - Narayana Yerol
- Depatment of Studies in Physics, Mangalore University, Mangalagangotri 574 199, Karnataka, India
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26
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Yang J, Zhang H, Zhang H, Pan B, Wang W, Fan Y, Liu Y. S phase arrest in lymphocytes induced by urinary 1-hydroxypyrene and alcohol drinking in coke oven workers. Hum Exp Toxicol 2017; 37:229-239. [DOI: 10.1177/0960327116678296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Arrest of the cell cycle after DNA damage is believed to promote DNA repair. We aim to investigate the main factors affecting cell cycle arrest of lymphocytes in coke oven workers. A total of 600 workers were included in this study, and their urinary levels of four polycyclic aromatic hydrocarbons (PAH) metabolites, 8-hydroxydeoxyguanosine (8-OHdG), and cell cycle distribution were determined. Urinary PAH metabolites were significantly increased in coke oven workers ( p < 0.01). It was found that only urinary 2-hydroxynaphthalene and 1-hydroxypyrene showed significant positive linear dose–response effects on 8-OHdG in this study population ( ptrend = 0.025 and 0.017, respectively). The dose–response effect was also observed for smoking and drinking on 8-OHdG ( ptrend < 0.001 and 0.034, respectively). Multivariate logistic regression analysis revealed that high levels of urinary 1-hydroxypyrene were associated with a significantly increased risk of S phase arrest (odds ratio (OR) = 1.32, p = 0.03), so as heavy alcohol drinking (OR = 1.31, p = 0.02). Drinking can significantly modify the effects of urinary 1-hydroxypyrene on S phase arrest, during co-exposure to both heavy drinking and median or high 1-hydroxypyrene levels (OR = 3.31, 95% confidence interval (CI) = 1.21–7.63 and OR = 2.56, 95% CI = 1.08–6.06, respectively). Our findings demonstrate that coke oven workers with heavy drinking will cause S phase arrest so as to repair more serious DNA damage.
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Affiliation(s)
- J Yang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - H Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - H Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - B Pan
- General Hospital of Taiyuan Iron & Steel (Group) Co., Ltd, Taiyuan, China
| | - W Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Y Fan
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Y Liu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
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Yang J, Zhang H, Zhang H, Wang W, Liu Y, Fan Y. Smoking modify the effects of polycyclic aromatic hydrocarbons exposure on oxidative damage to DNA in coke oven workers. Int Arch Occup Environ Health 2017; 90:423-431. [PMID: 28181029 DOI: 10.1007/s00420-017-1206-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/13/2017] [Indexed: 12/20/2022]
Abstract
PURPOSE Coke oven emissions containing polycyclic aromatic hydrocarbons (PAHs) are predominant toxic constituents of particulate air pollution that have been linked to increased risk of lung cancer. Numerous epidemiological studies have suggested that oxidative DNA damage may play a pivotal role in the carcinogenic mechanism of lung cancer. Little is known about the effect of interaction between PAHs exposure and lifestyle on DNA oxidative damage. METHODS The study population is composed by coke oven workers (365) and water treatment workers (144), and their urinary levels of four PAH metabolites and 8-hydroxydeoxyguanosine (8-OHdG) were determined. Airborne samples of exposed sites (4) and control sites (3) were collected, and eight carcinogenic PAHs were detected by high-performance liquid chromatography. RESULTS The median values of the sum of eight carcinogenic PAHs and BaP in exposed sites were significantly higher than control sites (P < 0.01). The study found that the urinary PAH metabolites were significantly elevated in coke oven workers (P < 0.01). Multivariate logistic regression analysis revealed that the risk of high levels of urinary 8-OHdG will increase with increasing age, cigarette consumption, and levels of urinary 1-hydroxypyrene, and P for trend were all <0.05. Smoking can significantly modify the effects of urinary 1-hydroxypyrene on high concentrations urinary 8-OHdG, during co-exposure to both light or heavy smoking and high 1-hydroxypyrene levels (OR 4.28, 95% CI 1.32-13.86 and OR 5.05, 95% CI 1.63-15.67, respectively). CONCLUSIONS Our findings quantitatively demonstrate that workers exposed to coke oven fumes and smoking will cause more serious DNA oxidative damage.
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Affiliation(s)
- Jin Yang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Xinjiannan Road 56, 030001, Taiyuan, China.
| | - Hongjie Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Xinjiannan Road 56, 030001, Taiyuan, China
| | - Huitao Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Xinjiannan Road 56, 030001, Taiyuan, China
| | - Wubin Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Xinjiannan Road 56, 030001, Taiyuan, China
| | - Yanli Liu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Xinjiannan Road 56, 030001, Taiyuan, China
| | - Yanfeng Fan
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Xinjiannan Road 56, 030001, Taiyuan, China
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28
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de Oliveira Galvão MF, de Queiroz JDF, Duarte EDSF, Hoelzemann JJ, de André PA, Saldiva PHN, Menezes Filho JA, Batistuzzo de Medeiros SR. Characterization of the particulate matter and relationship between buccal micronucleus and urinary 1-hydroxypyrene levels among cashew nut roasting workers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:659-671. [PMID: 27839996 DOI: 10.1016/j.envpol.2016.10.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 09/27/2016] [Accepted: 10/08/2016] [Indexed: 06/06/2023]
Abstract
The present study is the first assessment of occupational risk associated with artisanal cashew nut roasting using exposure and effect biomarkers, as well as a characterization and dispersion analysis of the released particulate matter (PM). A real-time particle monitor was used to quantify PM1.0, PM2.5 and PM10. Furthermore, the PM was sampled using a Handi-vol sampler, and the physicochemical characteristics were determined by SEM-EDS analysis. Trajectories, dispersion and deposition of the emitted material were calculated using the NOAA-HYSPLIT model. Urinary 1-hydroxypyrene (1-OHP) levels were analyzed by HPLC. DNA damage, chromosomal instability and cell death were measured by a buccal micronucleus cytome assay (BMCyt). The PM concentrations for all measurements in the exposed area were higher than in the non-exposed area. SEM-EDS analyses exhibited a wide variety of particles, and K, Cl, S and Ca biomass burning tracers were the major inorganic compounds. In addition, atmospheric modeling analysis suggested that these particles can reach regions farther away than 40 kilometers. Occupational polycyclic aromatic hydrocarbon exposure was confirmed by increases in 1-OHP levels in cashew nut workers. Frequencies of BMCyt biomarkers of genotoxicity (micronuclei and nuclear bud) and cytotoxicity (pyknosis, karyolysis, karyorrhexis and condensed chromatin) were higher in the exposed group compared with the controls. The influence of factors, such as age, on the micronuclei frequencies was demonstrated, and a correlation between 1-OHP and micronuclei was observed. To the best of our knowledge, no other study has demonstrated a correlation between these types of biomarkers. The use of exposure (1-OHP) and effect (BMCyt) biomarkers were therefore efficient in assessing the occupational risk associated with artisanal cashew nut roasting, and the high rates of PM2.5 are considered to be a potential contributor to this effect.
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Affiliation(s)
| | | | | | - Judith Johanna Hoelzemann
- Departamento de Ciências Atmosféricas e Climáticas, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.
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29
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Sram RJ, Svecova V, Rossnerova A. Systematic review of the use of the lymphocyte cytokinesis-block micronucleus assay to measure DNA damage induced by exposure to polycyclic aromatic hydrocarbons. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:162-169. [PMID: 27894684 DOI: 10.1016/j.mrrev.2016.07.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 07/26/2016] [Accepted: 07/27/2016] [Indexed: 02/07/2023]
Abstract
The effect of exposure to polycyclic aromatic hydrocarbons (PAHs) to induce micronuclei (MN) measured using the lymphocytes cytokinesis-block micronucleus (CBMN) assay were evaluated in 34 studies according to the exposure: 20 studies in coke oven workers, 7 studies in different occupational exposures as alluminium industry workers, rubber factory workers, road construction workers, airport workers and diesel exposed workers, 6 studies on environmentaly exposed groups as police, volunteers and children. Reviewed papers indicate that the CBMN assay is a sensitive biomarker of PAHs exposure in polluted air. Reviewed studies confirmed previous conclusions, that the frequency of MN measured using the lymphocyte CBMN is not significantly affected by smoking, females are more sensitive to PAHs than males, the frequency of MN is increased with age.
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Affiliation(s)
- Radim J Sram
- Institute of Experimental Medicine AS CR, Prague, Czech Republic.
| | - Vlasta Svecova
- Institute of Experimental Medicine AS CR, Prague, Czech Republic
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Zhang Y, Dong S, Wang H, Tao S, Kiyama R. Biological impact of environmental polycyclic aromatic hydrocarbons (ePAHs) as endocrine disruptors. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 213:809-824. [PMID: 27038213 DOI: 10.1016/j.envpol.2016.03.050] [Citation(s) in RCA: 201] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 03/03/2016] [Accepted: 03/20/2016] [Indexed: 05/20/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are often detected in the environment and are regarded as endocrine disruptors. We here designated mixtures of PAHs in the environment as environmental PAHs (ePAHs) to discuss their effects collectively, which could be different from the sum of the constituent PAHs. We first summarized the biological impact of environmental PAHs (ePAHs) found in the atmosphere, sediments, soils, and water as a result of human activities, accidents, or natural phenomena. ePAHs are characterized by their sources and forms, followed by their biological effects and social impact, and bioassays that are used to investigate their biological effects. The findings of the bioassays have demonstrated that ePAHs have the ability to affect the endocrine systems of humans and animals. The pathways that mediate cell signaling for the endocrine disruptions induced by ePAHs and PAHs have also been summarized in order to obtain a clearer understanding of the mechanisms responsible for these effects without animal tests; they include specific signaling pathways (MAPK and other signaling pathways), regulatory mechanisms (chromatin/epigenetic regulation, cell cycle/DNA damage control, and cytoskeletal/adhesion regulation), and cell functions (apoptosis, autophagy, immune responses/inflammation, neurological responses, and development/differentiation) induced by specific PAHs, such as benz[a]anthracene, benzo[a]pyrene, benz[l]aceanthrylene, cyclopenta[c,d]pyrene, 7,12-dimethylbenz[a]anthracene, fluoranthene, fluorene, 3-methylcholanthrene, perylene, phenanthrene, and pyrene as well as their derivatives. Estrogen signaling is one of the most studied pathways associated with the endocrine-disrupting activities of PAHs, and involves estrogen receptors and aryl hydrocarbon receptors. However, some of the actions of PAHs are contradictory, complex, and unexplainable. Although several possibilities have been suggested, such as direct interactions between PAHs and receptors and the suppression of their activities through other pathways, the mechanisms underlying the activities of PAHs remain unclear. Thus, standardized assay protocols for pathway-based assessments are considered to be important to overcome these issues.
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Affiliation(s)
- Yanyan Zhang
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Sijun Dong
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Hongou Wang
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Shu Tao
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Ryoiti Kiyama
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8566, Japan.
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Franchi L, De Souza T, Andrioli W, Lima I, Bastos J, Takahashi C. The effects of the mycotoxin austdiol on cell cycle progression, cytotoxicity and genotoxicity in Chinese hamster ovary (CHO-K1) cells. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2015.1907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Austdiol is a mycotoxin mainly produced by Aspergillus ustus and Mycoleptodiscus indicus. These fungi are found in rye, oats, barley, corn and feed grains; thus, as a potential contaminant of human food and animal feed, this mycotoxin is of great concern. As such, the elucidation of the cytotoxicity and mutagenicity of austdiol is important. In this study, austdiol was purified from a rice-oat solid medium culture of M. indicus using chromatographic separation techniques. Chinese hamster ovary (CHO-K1) cells were then used to study the effect of austdiol on mammalian cell cycle, clonogenicity and DNA damage. Austdiol induced cell cycle arrest in G2/M phase, with a decreased S phase population and increased sub-G1 population. Austdiol also increased the polyploid population. These events resulted in cell death detected 7 days after treatment by clonogenic assay. DNA damage represents the main mechanism of action of austdiol, which induces DNA breaks and increases the frequency of micronuclei and nucleoplasmic bridges in binucleated cells in a CHO-K1 cell line. Moreover, cells exposed to austdiol and doxorubicin (DXR) combined treatments presented a reduced number of colonies and increased frequencies of micronuclei and nucleoplasmic bridges compared with negative control and cells treated with austdiol or DXR alone.
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Affiliation(s)
- L.P. Franchi
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Bloco G. Av. Bandeirantes 3900, 14049-900 Monte Alegre, SP, Brazil
| | - T.A.J. De Souza
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Bloco G. Av. Bandeirantes 3900, 14049-900 Monte Alegre, SP, Brazil
| | - W.J. Andrioli
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040-903 Ribeirão Preto, SP, Brazil
- Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900, 14040-900 Vila Monte Alegre, SP, Brazil
| | - I.M.S. Lima
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Bloco G. Av. Bandeirantes 3900, 14049-900 Monte Alegre, SP, Brazil
| | - J.K. Bastos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040-903 Ribeirão Preto, SP, Brazil
| | - C.S. Takahashi
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Bloco G. Av. Bandeirantes 3900, 14049-900 Monte Alegre, SP, Brazil
- Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900, 14040-900 Vila Monte Alegre, SP, Brazil
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Shen M, Bin P, Li H, Zhang X, Sun X, Duan H, Niu Y, Meng T, Dai Y, Gao W, Yu S, Gu G, Zheng Y. Increased levels of etheno-DNA adducts and genotoxicity biomarkers of long-term exposure to pure diesel engine exhaust. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 543:267-273. [PMID: 26588802 DOI: 10.1016/j.scitotenv.2015.10.165] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/27/2015] [Accepted: 10/31/2015] [Indexed: 06/05/2023]
Abstract
Etheno-DNA adducts are biomarkers for assessing oxidative stress. In this study, the aim was to detect the level of etheno-DNA adducts and explore the relationship between the etheno-DNA adducts and genotoxicity biomarkers of the diesel engine exhaust (DEE)-exposed workers. We recruited 86 diesel engine testing workers with long-term exposure to DEE and 99 non-DEE-exposed workers. The urinary mono-hydroxylated polycyclic aromatic hydrocarbons (OH-PAHs) and etheno-DNA adducts (εdA and εdC) were detected by HPLC-MS/MS and UPLC-MS/MS, respectively. Genotoxicity biomarkers were also evaluated by comet assay and cytokinesis-block micronucleus assay. The results showed that urinary εdA was significantly higher in the DEE-exposed workers (p<0.001), exhibited 2.1-fold increase compared with the non-DEE-exposed workers. The levels of urinary OH-PAHs were positively correlated with the level of εdA among all the study subjects (p<0.001). Moreover, we found that the increasing level of εdA was significantly associated with the increased olive tail moment, percentage of tail DNA, or frequency of micronucleus in the study subjects (p<0.01). No significant association was observed between the εdC level and any measured genotoxicity biomarkers. In summary, εdA could serve as an indicator for DEE exposure in the human population.
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Affiliation(s)
- Meili Shen
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Ping Bin
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Haibin Li
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Xiao Zhang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Xin Sun
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Huawei Duan
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Yong Niu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Tao Meng
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Yufei Dai
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Weimin Gao
- Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79409, USA.
| | - Shanfa Yu
- Henan Provincial Institute for Occupational Health, Zhengzhou, 450052, China.
| | - Guizhen Gu
- Henan Provincial Institute for Occupational Health, Zhengzhou, 450052, China.
| | - Yuxin Zheng
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
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Zhao P, Fu J, Yao B, Jia Y, Zhang H, Li X, Dong L, Gao Y, Liu W, Chen W, Zhou Z. Label-free quantitative proteomic analysis of benzo(a)pyrene-transformed 16HBE cells serum-free culture supernatant and xenografted nude mice sera. Chem Biol Interact 2015; 245:39-49. [PMID: 26748308 DOI: 10.1016/j.cbi.2015.12.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 12/01/2015] [Accepted: 12/29/2015] [Indexed: 11/30/2022]
Abstract
To screen potential biomarkers of benzo(a)pyrene (BaP)-induced lung cancer, the proteomic profiles of BaP-transformed 16HBE cell line T-16HBE-C1 cells serum-free culture supernatant and xenografted nude mice sera were compared with those of 16HBE group by utilizing label-free quantitative proteomic strategy. By employing nano-LC-MS/MS technology followed by MaxQuant and Perseus processing, 489 differentially expressed proteins were identified between T-16HBE-C1 and 16HBE cells serum-free culture supernatant, and 49 significantly up-regulated proteins were identified in T-16HBE-C1 xenografted nude mice sera. Three proteins neuropilin-2 (NRP2), clusterin (CLU) and A-kinase anchor protein 12 (AKAP12) were up-regulated in the serum-free culture supernatant of T-16HBE-C1 cells. These 3 human proteins were present in the sera of nude mice xenografted with T-16HBE-C1 cells, but were undetectable in mice xenografted with 16HBE cells. The proteomic results of NRP2 and AKAP12 were confirmed by Western blotting and enzyme-linked immunosorbent assays, respectively. Moreover, the serum NRP2 levels were significantly elevated at the 4th day after tumor cell implantation and showed good positive correlation with tumor growth characterized by tumor volume. In conclusion, serum NRP2, CLU and AKAP12 could be potential biomarkers of BaP-induced lung cancer. The proteomic results will gain deeper insights into the mechanisms of BaP-induced carcinogenesis.
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Affiliation(s)
- Peng Zhao
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing, 100191, PR China.
| | - Juanling Fu
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China
| | - Biyun Yao
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing, 100191, PR China
| | - Yongrui Jia
- Medical and Healthy Analytical Center, Peking University Health Science Center, Beijing, 100191, PR China
| | - Hongtao Zhang
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing, 100191, PR China
| | - Xuehui Li
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing, 100191, PR China
| | - Lisha Dong
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing, 100191, PR China
| | - Ya Gao
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing, 100191, PR China
| | - Wenli Liu
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing, 100191, PR China
| | - Wen Chen
- Department of Toxicology, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Zongcan Zhou
- Department of Toxicology, Peking University Health Science Center, Beijing, 100191, PR China.
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Yang L, Xia B, Yang X, Ding H, Wu D, Zhang H, Jiang G, Liu J, Zhuang Z. Mitochondrial DNA hypomethylation in chrome plating workers. Toxicol Lett 2015; 243:1-6. [PMID: 26656300 DOI: 10.1016/j.toxlet.2015.11.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/24/2015] [Accepted: 11/30/2015] [Indexed: 01/24/2023]
Abstract
A matched case-control study was conducted to examine the relationship between chromium (Cr) exposure and variation in mitochondrial (mt) DNA methylation. We enrolled 29 pairs of subjects in this study; Cr exposure was confirmed in the cases by detecting blood Cr and other metal ion concentrations. DNA damage caused by Cr exposure was determined in terms of binucleated micronucleus frequency (BNMN) and mtDNA copy number. Finally, a Sequenom MassARRAY platform was applied to inspect the DNA methylation levels of mitochondrially encoded tRNA phenylalanine (MT-TF), mitochondrially encoded 12S RNA (MT-RNR1), and long interspersed nucleotide element-1 (LINE-1) genes. The blood Cr ion concentration and micronucleus frequency of the Cr-exposed group were higher than those of the control group, whereas the mtDNA copy number remained unchanged. The methylation levels of MT-TF and MT-RNR1 but not LINE-1 were significantly lower in Cr-exposed workers. Pearson correlation analysis showed that workers with higher blood Cr ion concentrations exhibited lower MT-TF and MT-RNR1 gene methylation, and multiple linear regression analysis indicated that CpG sites 1 and 2 in MT-TF and CpG site 6 in MT-RNR1 were affected. These results suggested that methylation level of mtDNA has the possibility of acting as an alternative effect biomarker for Cr exposure.
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Affiliation(s)
- Linqing Yang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Bo Xia
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Xueqin Yang
- Shenzhen Prevention and Treatment Center for Occupational Disease, Shenzhen 518001, China
| | - Hong Ding
- Shenzhen Longgang District Center for Disease Control and Prevention, Shenzhen 518172, China
| | - Desheng Wu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Huimin Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Gaofeng Jiang
- School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jianjun Liu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Zhixiong Zhuang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China.
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35
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Mesic A, Nefic H. Assessment of the genotoxicity and cytotoxicity in environmentally exposed human populations to heavy metals using the cytokinesis-block micronucleus cytome assay. ENVIRONMENTAL TOXICOLOGY 2015; 30:1331-1342. [PMID: 24861359 DOI: 10.1002/tox.22004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 05/04/2014] [Accepted: 05/09/2014] [Indexed: 06/03/2023]
Abstract
The cytokinesis-block micronucleus cytome (CBMN-Cyt) assay was developed as a system for evaluating DNA damage, cytostasis, and cytotoxicity. The aim of the present study was to estimate levels of micronuclei (MNi), nucleoplasmic bridges (NPBs), nuclear buds (NBUDs), cell death (apoptosis/necrosis), nuclear division index, and nuclear division cytotoxicity index values in the peripheral blood lymphocytes of environmentally exposed subjects to heavy metals from five Bosnian regions, characterized by different exposure to heavy metals. The study was performed using CBMN-Cyt assay, considering factors, such as age, gender and smoking habits and their possible effects on analyzed parameters. In total, 104 healthy subjects were selected (49.04% females and 50.96% males; average age, 35.41 years; 51.92% smokers and 48.08% nonsmokers). There was significant difference between the frequency of NBUDs in Tuzla as compared to the control group. Furthermore, there was observed a statistically significant difference for the frequency of NPBs between Zenica, Olovo, and Kakanj when compared with the controls. Males showed a significantly higher number of apoptotic cells than females in controls. There were significant differences between smokers and nonsmokers in the frequency of NPBs in controls (higher in nonsmokers) and necrotic cells in Olovo (higher in nonsmokers). The pack years of smoking significantly influenced the number of necrotic cells in controls and the frequency of NBUDs in the overall sample. The results of the present study provide evidence of significantly increased frequency of NPBs and NBUDs in exposed subjects, suggesting that these endpoints are highly sensitive markers for measuring genotoxicity.
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Affiliation(s)
- Aner Mesic
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Hilada Nefic
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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36
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Leng S, Wu G, Collins LB, Thomas CL, Tellez CS, Jauregui AR, Picchi MA, Zhang X, Juri DE, Desai D, Amin SG, Crowell RE, Stidley CA, Liu Y, Swenberg JA, Lin Y, Wathelet MG, Gilliland FD, Belinsky SA. Implication of a Chromosome 15q15.2 Locus in Regulating UBR1 and Predisposing Smokers to MGMT Methylation in Lung. Cancer Res 2015; 75:3108-17. [PMID: 26183928 DOI: 10.1158/0008-5472.can-15-0243] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 05/22/2015] [Indexed: 11/16/2022]
Abstract
O(6)-Methylguanine-DNA methyltransferase (MGMT) is a DNA repair enzyme that protects cells from carcinogenic effects of alkylating agents; however, MGMT is silenced by promoter hypermethylation during carcinogenesis. A single-nucleotide polymorphism (SNP) in an enhancer in the MGMT promoter was previously identified to be highly significantly associated with risk for MGMT methylation in lung cancer and sputum from smokers. To further genetic investigations, a genome-wide association and replication study was conducted in two smoker cohorts to identify novel loci for MGMT methylation in sputum that were independent of the MGMT enhancer polymorphism. Two novel trans-acting loci (15q15.2 and 17q24.3) that were identified acted together with the enhancer SNP to empower risk prediction for MGMT methylation. We found that the predisposition to MGMT methylation arising from the 15q15.2 locus involved regulation of the ubiquitin protein ligase E3 component UBR1. UBR1 attenuation reduced turnover of MGMT protein and increased repair of O6-methylguanine in nitrosomethylurea-treated human bronchial epithelial cells, while also reducing MGMT promoter activity and abolishing MGMT induction. Overall, our results substantiate reduced gene transcription as a major mechanism for predisposition to MGMT methylation in the lungs of smokers, and support the importance of UBR1 in regulating MGMT homeostasis and DNA repair of alkylated DNA adducts in cells.
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Affiliation(s)
- Shuguang Leng
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Guodong Wu
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Leonard B Collins
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Cynthia L Thomas
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Carmen S Tellez
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Andrew R Jauregui
- Lung Fibrosis Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Maria A Picchi
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Xiequn Zhang
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Daniel E Juri
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Dhimant Desai
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania
| | - Shantu G Amin
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania
| | - Richard E Crowell
- Department of Internal Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Christine A Stidley
- Department of Internal Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Yushi Liu
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - James A Swenberg
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Yong Lin
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Marc G Wathelet
- Lung Fibrosis Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Frank D Gilliland
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Steven A Belinsky
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico.
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Asker N, Carney Almroth B, Albertsson E, Coltellaro M, Bignell JP, Hanson N, Scarcelli V, Fagerholm B, Parkkonen J, Wijkmark E, Frenzilli G, Förlin L, Sturve J. A gene to organism approach--assessing the impact of environmental pollution in eelpout (Zoarces viviparus) females and larvae. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:1511-1523. [PMID: 25663503 PMCID: PMC5008212 DOI: 10.1002/etc.2921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 10/26/2014] [Accepted: 02/01/2015] [Indexed: 06/04/2023]
Abstract
A broad biomarker approach was applied to study the effects of marine pollution along the Swedish west coast using the teleost eelpout (Zoarces viviparus) as the sentinel species. Measurements were performed on different biological levels, from the molecular to the organismal, including measurements of messenger RNA (mRNA), proteins, cellular and tissue changes, and reproductive success. Results revealed that eelpout captured in Stenungsund had significantly higher hepatic ethoxyresorufin O-deethylase activity, high levels of both cytochrome P4501A and diablo homolog mRNA, and high prevalence of dead larvae and nuclear damage in erythrocytes. Eelpout collected in Göteborg harbor displayed extensive macrovesicular steatosis, whereby the majority of hepatocytes were affected throughout the liver, which could indicate an effect on lipid metabolism. Results also indicate that eelpouts collected at polluted sites might have an affected immune system, with lower mRNA expression of genes involved in the innate immune system and a higher number of lymphocytes. Biomarker assessment also was performed on livers dissected from unborn eelpout larvae collected from the ovary of the females. No significant differences were noted, which might indicate that the larvae to some extent are protected from effects of environmental pollutants. In conclusion, usage of the selected set of biological markers, covering responses from gene to organism, has demonstrated site-specific biomarker patterns that provided a broad and comprehensive picture of the impact of environmental stressors.
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Affiliation(s)
- Noomi Asker
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Bethanie Carney Almroth
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Eva Albertsson
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | | | - John Paul Bignell
- Centre for Environment, Fisheries and Aquaculture Science, Weymouth, Dorset, United Kingdom
| | - Niklas Hanson
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Vittoria Scarcelli
- Department of Clinic and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Björn Fagerholm
- Department of Aquatic Resources, Institute of Coastal Research, Swedish University of Agricultural Sciences, Väröbacka, Sweden
| | - Jari Parkkonen
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Emma Wijkmark
- Department of Mathematical Statistics, Chalmers University of Technology, Gothenburg, Sweden
| | - Giada Frenzilli
- Department of Clinic and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Lars Förlin
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Joachim Sturve
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
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Xie Z, Lin H, Fang R, Shen W, Li S, Chen B. Effects of a fruit-vegetable dietary pattern on oxidative stress and genetic damage in coke oven workers: a cross-sectional study. Environ Health 2015; 14:40. [PMID: 25943758 PMCID: PMC4428115 DOI: 10.1186/s12940-015-0028-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 04/22/2015] [Indexed: 05/16/2023]
Abstract
BACKGROUND Coke oven workers (COWs) are exposed to high level of genotoxic chemicals that induce oxidative stress and genetic damage. The dietary intake of certain types of foods may reverse these effects. METHODS We conducted a cross-sectional study with 51 topside COWs, 79 other COWs, and 67 controls, to assess the effects of dietary patterns on oxidative stress and genetic damage. RESULTS Compared to the controls, both topside and other COWs had significantly higher urinary 1-hydroxypyrene levels, serum oxidant levels [malondialdehyde, (MDA)], and genetic damage [micronucleus (MN) frequency & 8-oxo-2'-deoxyguanosine (8-OH-dG)], but lower antioxidant levels [superoxide dismutase (SOD) and glutathione peroxidase, (GPx)]. The fruit-vegetable (FV) dietary pattern was positively correlated with serum SOD levels and negative correlated with serum MDA, MN frequency, and urinary 8-OH-dG. COWs with an FV patter in the highest quartile (Q4) had significantly increased antioxidant levels (SOD and GPx) and decreased oxidant levels (MDA) and genetic damage (MN frequency and 8-OH-dG) than those with an FV pattern in the lowest quartile (Q1). CONCLUSION Compared to control subjects, COWs had increased oxidative stress and genetic damage. A FV dietary pattern may reverse oxidative stress and genetic damage in COWs.
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Affiliation(s)
- Zheng Xie
- School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, P. R. China.
| | - Haijiang Lin
- Taizhou City Center for Disease Control and Prevention, 608 The east China sea avenue, Taizhou city, Zhejiang Province, 318000, P. R. China.
| | - Renfei Fang
- School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, P. R. China.
| | - Weiwei Shen
- Taizhou City Center for Disease Control and Prevention, 608 The east China sea avenue, Taizhou city, Zhejiang Province, 318000, P. R. China.
| | - Shuguang Li
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, 138 Yixueyuan Road, Shanghai, 20032, P. R. China.
| | - Bo Chen
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, 138 Yixueyuan Road, Shanghai, 20032, P. R. China.
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39
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Zeljezic D, Bjelis M, Mladinic M. Evaluation of the mechanism of nucleoplasmic bridge formation due to premature telomere shortening in agricultural workers exposed to mixed pesticides: indication for further studies. CHEMOSPHERE 2015; 120:45-51. [PMID: 24974313 DOI: 10.1016/j.chemosphere.2014.05.085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/27/2014] [Accepted: 05/31/2014] [Indexed: 06/03/2023]
Abstract
Agricultural workers are often exposed to high levels of pesticides over prolonged periods of time. We attempted to determine whether exposure to multiple pesticides shortens relative telomere length (RTL) and causes nucleoplasmic bridge (NPB) formation via the mechanism of telomere-end fusion in the lymphocytes of agricultural workers. For measuring RTL, we used quantitative fluorescent in situ hybridization, while NPB frequency was measured as part of the cytome assay. Multivariate analysis of variances taking into account confounding factors (age, gender, years of exposure, smoking, and alcohol intake) did not show a decrease, but rather an increase of RTL in agricultural workers compared to control individuals. In the exposed population, NPB frequency was significantly higher compared to controls (6 times, p<0.05). Multiple regression between NPB, RTL, and confounding factors was not significant. Using Spearman correlation, we did not find proof for our initial hypothesis. Our hypothesis that telomere shortening is a mechanism of NPB origin was not proven, indicating that telomere-end fusion is not a mechanism of NPB formation under our experimental conditions for agricultural workers.
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Affiliation(s)
- Davor Zeljezic
- Division for Mutagenesis, Institute for Medical Research and Occupational Health, Ksaverska 2, 10000 Zagreb, Croatia
| | - Marija Bjelis
- Economic High School Velika Gorica, Ulica Kralja Stjepana Tomaševića 21, 10410 Velika Gorica, Croatia
| | - Marin Mladinic
- Division for Mutagenesis, Institute for Medical Research and Occupational Health, Ksaverska 2, 10000 Zagreb, Croatia.
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Lee SL, Thomas P, Hecker J, Faunt J, Fenech M. Chromosomal DNA damage measured using the cytokinesis-block micronucleus cytome assay is significantly associated with cognitive impairment in South Australians. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2015; 56:32-40. [PMID: 25099033 DOI: 10.1002/em.21890] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 07/21/2014] [Indexed: 06/03/2023]
Abstract
Loss of genome integrity may be associated with increased risk for neurodegenerative disease. The aim of this study was to investigate whether mild cognitive impairment (MCI) or Alzheimer's disease (AD) individuals have increased DNA damage relative to age- and gender- matched controls using the cytokinesis-block micronucleus cytome (CBMN-Cyt) assay. DNA damage was measured as micronuclei (MN), nucleoplasmic bridges (NPB), and nuclear buds (NBUD) in binucleated cells. The assay was performed on blood samples from 80 participants consisting of (i) MCI cases (N = 20) and age- and gender- matched controls (N = 20), and (ii) AD cases (N = 20) and age- and gender- matched controls (N = 20). There was a significant increase in MCI NBUD frequency (P = 0.006) relative to controls, which was also observed in male (P = 0.03) and female (P = 0.04) subgroups. For AD cases, there were no significant differences in assay biomarkers relative to controls. There was a significant negative correlation between Mini Mental State Examination (MMSE) and (i) MN in all controls, (R = -0.3, P = 0.04), and AD cases (R = -0.4, P = 0.03), (ii) NPB in all controls, (R = -0.4, P = 0.006) and AD cases (R = -0.5, P = 0.01), and (iii) NBUD in MCI cases (R = -0.5, P = 0.007) and AD cases (R = -0.7, P = 0.0002). The results suggest that an increase in lymphocyte CBMN-Cyt DNA damage biomarkers may be associated with cognitive decline.
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Affiliation(s)
- Sau Lai Lee
- Commonwealth Scientific and Industrial Research Organisation (Animal, Food, and Health Sciences), Adelaide, South Australia; Discipline of Physiology, School of Medical Sciences, The University of Adelaide, Adelaide, South Australia
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A guidance value of 1-hydroxypyrene in urine in view of acceptable occupational exposure to polycyclic aromatic hydrocarbons. Toxicol Lett 2014; 231:239-48. [DOI: 10.1016/j.toxlet.2014.05.001] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 04/30/2014] [Accepted: 05/03/2014] [Indexed: 11/21/2022]
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Zhang X, Duan H, Gao F, Li Y, Huang C, Niu Y, Gao W, Yu S, Zheng Y. Increased micronucleus, nucleoplasmic bridge, and nuclear bud frequencies in the peripheral blood lymphocytes of diesel engine exhaust-exposed workers. Toxicol Sci 2014; 143:408-17. [PMID: 25370840 DOI: 10.1093/toxsci/kfu239] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The International Agency for Research on Cancer has recently reclassified diesel engine exhaust (DEE) as a Group 1 carcinogen. Micronucleus (MN), nucleoplasmic bridge (NPB), and nuclear bud (NBUD) frequencies in peripheral blood lymphocytes (PBLs) are associated with cancer risk. However, the impact of DEE exposure on MN frequency has not been thoroughly elucidated due to mixed exposure and its impact on NPB and NBUD frequencies has never been explored in humans. We recruited 117 diesel engine testing workers with exclusive exposure to DEE and 112 non-DEE-exposed workers, and then we measured urinary levels of 4 mono-hydroxylated polycyclic aromatic hydrocarbons (OH-PAHs) using high-performance liquid chromatography-mass spectrometry as well as MN, NPB, and NBUD frequencies in PBLs using cytokinesis-block MN assay. The DEE-exposed workers exhibited significantly higher MN, NPB, and NBUD frequencies than the non-DEE-exposed workers (P < 0.05). Among all study subjects, increasing levels of all 4 urinary OH-PAHs, on both quartile and continuous scales, were associated with increased MN, NPB, and NBUD frequencies (all P < 0.05). When the associations were analyzed separately in DEE-exposed and non-DEE-exposed workers, we found that the association between increasing quartiles of urinary 9-hydroxyphenanthrene (9-OHPh) and MN frequencies persisted in DEE-exposed workers (P = 0.001). The percent of MN frequencies increased, on average, by 23.99% (95% confidential interval, 9.64-39.93) per 1-unit increase in ln-transformed 9-OHPh. Our results clearly show that exposure to DEE can induce increases in MN, NPB, and NBUD frequencies in PBLs and suggest that DEE exposure level is associated with MN frequencies.
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Affiliation(s)
- Xiao Zhang
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Huawei Duan
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Feng Gao
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Yuanyuan Li
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Chuanfeng Huang
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Yong Niu
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Weimin Gao
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Shanfa Yu
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
| | - Yuxin Zheng
- *Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China, Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou 510080, China, Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, TX 79416, USA, and Henan Institute of Occupational Medicine, Kangfuxi Street, Zhengzhou 450052, China
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León-Mejía G, Quintana M, Debastiani R, Dias J, Espitia-Pérez L, Hartmann A, Henriques JAP, Da Silva J. Genetic damage in coal miners evaluated by buccal micronucleus cytome assay. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 107:133-139. [PMID: 24927390 DOI: 10.1016/j.ecoenv.2014.05.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 04/30/2014] [Accepted: 05/19/2014] [Indexed: 06/03/2023]
Abstract
During coal mining activities, large quantities of coal dust, ashes, polycyclic aromatic hydrocarbons and metals are released into the environment. This complex mixture presents one of the most important occupational hazards for health of workers. The aim of the present study was to evaluate the genetic damage together with the presence of inorganic elements, in an exposed workers population to coal mining residues of Guajira-Colombia. Thus, 100 exposed workers and 100 non-exposed control individuals were included in this study. To determine genetic damage we assessed the micronucleus (MN) frequencies and nuclear buds in buccal mucosa samples (BMCyt) assay, which were significantly higher in the exposed group than non-exposed control group. In addition, karyorrhectic and karyolytic cells were also significantly higher in the exposed group (cell death). No significant difference was observed between the exposed groups engaged in different mining activities. No correlation between age, alcohol consumption, time of service and MN assay data were found in this study. However, the content of inorganic elements in blood samples analyzed by a Particle-induced X-ray emission technique (PIXE) showed higher values of silicon (Si) and aluminum (Al) in the exposed group. In this study we discuss the possibility of DNA damage observed in the mine workers cells be a consequence of oxidative damage.
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Affiliation(s)
- Grethel León-Mejía
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil.
| | - Milton Quintana
- Unidad de Investigación, Desarrollo e Innovación en Genética y Biología Molecular, Universidad Simón Bolívar, Barranquilla, Colombia
| | - Rafaela Debastiani
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil
| | - Johnny Dias
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil
| | - Lyda Espitia-Pérez
- Laboratorio de Investigación Biomédica y Biología Molecular, Universidad del Sinú, Montería, Colombia
| | | | - João Antônio Pêgas Henriques
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil; Instituto de Biotecnologia, Universidade de Caxias do Sul (UCS), Caxias do Sul, RS, Brasil.
| | - Juliana Da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil (ULBRA), Canoas-RS, Brasil
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miR-3940-5p associated with genetic damage in workers exposed to hexavalent chromium. Toxicol Lett 2014; 229:319-26. [DOI: 10.1016/j.toxlet.2014.06.033] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 06/21/2014] [Accepted: 06/24/2014] [Indexed: 11/19/2022]
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Xin L, Wang J, Guo S, Wu Y, Li X, Deng H, Kuang D, Xiao W, Wu T, Guo H. Organic extracts of coke oven emissions can induce genetic damage in metabolically competent HepG2 cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:946-953. [PMID: 24709322 DOI: 10.1016/j.etap.2014.03.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 03/10/2014] [Accepted: 03/16/2014] [Indexed: 06/03/2023]
Abstract
Coke oven emissions (COEs) containing various carcinogenic polycyclic aromatic hydrocarbons (PAHs) represent the coal-burning pollution in the air. Organic pollutants in the aerosol and particulate matter of COEs were collected from the bottom, side, and top of a coke oven. The Comet assay and cytokinesis-block micronucleus cytome assay were conducted to analyze the genetic damage of extractable organic matter (EOM) of COEs on HepG2 cells. All the three EOMs could induce significant dose-dependent increases in Olive tail moment, tail DNA, and tail length, micronuclei, nucleoplasmic bridges, and nuclear buds frequencies, which were mostly positively correlated with the total PAHs concentration in each EOM. In conclusion, EOMs of COEs in the three typical working places of coke oven can induce DNA strand breaks and genomic instability in the metabolically competent HepG2 cells. The PAHs in EOMs may be important causative agents for the genotoxic effects of COEs.
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Affiliation(s)
- Lili Xin
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China; Institute of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, Jiangsu, China
| | - Jianshu Wang
- KunShan Health Inspection Station, 458 Tongfeng Road, Kunshan 215301, Jiangsu, China
| | - Sifan Guo
- Institute of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, Jiangsu, China
| | - Yanhu Wu
- Institute of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, Jiangsu, China
| | - Xiaohai Li
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China
| | - Huaxin Deng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China
| | - Dan Kuang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China
| | - Wei Xiao
- Institute of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, Jiangsu, China
| | - Tangchun Wu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China
| | - Huan Guo
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China.
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Wultsch G, Nersesyan A, Kundi M, Jakse R, Beham A, Wagner KH, Knasmueller S. The sensitivity of biomarkers for genotoxicity and acute cytotoxicity in nasal and buccal cells of welders. Int J Hyg Environ Health 2014; 217:492-8. [DOI: 10.1016/j.ijheh.2013.09.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 09/25/2013] [Accepted: 09/26/2013] [Indexed: 12/22/2022]
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Cornélio DA, Tavares JCM, Pimentel TVCDA, Cavalcanti GB, Batistuzzo de Medeiros SR. Cytokinesis-block micronucleus assay adapted for analyzing genomic instability of human mesenchymal stem cells. Stem Cells Dev 2014; 23:823-38. [PMID: 24328548 DOI: 10.1089/scd.2013.0383] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Human mesenchymal stem cells (hMSCs) are multipotent cells used in cell therapy research. One of the problems involving hMSCs is the possibility of genetic instability during in vitro expansion required to obtain a suitable number of cells for clinical applications. The cytokinesis-block micronucleus (CBMN) assay measures genetic instability by analyzing the presence of micronucleus (MN), nucleoplasmic bridges (NPBs), and nuclear buds (NBUDs) in binucleated cells. The present study describes modifications in the CBMN assay methodology to analyze genetic instability in hMSCs isolated from the umbilical vein and in vitro expanded. The best protocol to achieve binucleated hMSCs with preserved cytoplasm was as follows: cytochalasin B concentration (4.0 μg/mL), use of hypotonic treatment (3 min), and the fixative solution (9 methanol:1 acetic acid). These adaptations were reproduced in three hMSC primary cell cultures and also in XP4PA and A549 cell lines. The frequency of hMSCs treated with mitomycin-C presenting MN was lower than that with other nuclear alterations, indicating that the hMSCs contain mechanisms to avoid a high level of chromosomal breaks. However, a high frequency of cells with NPBs was detected and spontaneous anaphase bridges under normal hMSC in vitro culture were observed. Considering that anaphase bridges are characteristic alterations in tumor cells, the CBMN assay is indicated as an important tool associated with other genetic analyses in order to ensure the safe clinical use of hMSCs in cell therapy.
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Affiliation(s)
- Déborah Afonso Cornélio
- 1 Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte , Natal, Brazil
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Coşkun M, Çayır A, Coşkun M, Tok H. Evaluation of background DNA damage in a Turkish population measured by means of the cytokinesis-block micronucleus cytome assay. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2013; 757:23-7. [DOI: 10.1016/j.mrgentox.2013.03.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Revised: 02/09/2013] [Accepted: 03/28/2013] [Indexed: 10/26/2022]
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Fenech M, Kirsch-Volders M. RE: Insensitivity of the in vitro cytokinesis-block micronucleus assay with human lymphocytes for the detection of DNA damage present at the start of the cell culture (Mutagenesis, 27, 743–747, 2012). Mutagenesis 2013; 28:367-9. [DOI: 10.1093/mutage/ges081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Genetic damage in human cells exposed to non-ionizing radiofrequency fields: A meta-analysis of the data from 88 publications (1990–2011). MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2012; 749:1-16. [DOI: 10.1016/j.mrgentox.2012.09.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/16/2012] [Accepted: 09/17/2012] [Indexed: 01/12/2023]
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