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Lan Q, Smith MT, Tang X, Guo W, Vermeulen R, Ji Z, Hu W, Hubbard AE, Shen M, McHale CM, Qiu C, Liu S, Reiss B, Beane-Freeman L, Blair A, Ge Y, Xiong J, Li L, Rappaport SM, Huang H, Rothman N, Zhang L. Chromosome-wide aneuploidy study of cultured circulating myeloid progenitor cells from workers occupationally exposed to formaldehyde. Carcinogenesis 2015; 36:160-7. [PMID: 25391402 PMCID: PMC4291049 DOI: 10.1093/carcin/bgu229] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 10/11/2014] [Accepted: 11/09/2014] [Indexed: 11/12/2022] Open
Abstract
Formaldehyde (FA) is an economically important industrial chemical to which millions of people worldwide are exposed environmentally and occupationally. Recently, the International Agency for Cancer Research concluded that there is sufficient evidence that FA causes leukemia, particularly myeloid leukemia. To evaluate the biological plausibility of this association, we employed a chromosome-wide aneuploidy study approach, which allows the evaluation of aneuploidy and structural chromosome aberrations (SCAs) of all 24 chromosomes simultaneously, to analyze cultured myeloid progenitor cells from 29 workers exposed to relatively high levels of FA and 23 unexposed controls. We found statistically significant increases in the frequencies of monosomy, trisomy, tetrasomy and SCAs of multiple chromosomes in exposed workers compared with controls, with particularly notable effects for monosomy 1 [P = 6.02E-06, incidence rate ratio (IRR) = 2.31], monosomy 5 (P = 9.01E-06; IRR = 2.24), monosomy 7 (P = 1.57E-05; IRR = 2.17), trisomy 5 (P = 1.98E-05; IRR = 3.40) and SCAs of chromosome 5 (P = 0.024; IRR = 4.15). The detection of increased levels of monosomy 7 and SCAs of chromosome 5 is particularly relevant as they are frequently observed in acute myeloid leukemia. Our findings provide further evidence that leukemia-related cytogenetic changes can occur in the circulating myeloid progenitor cells of healthy workers exposed to FA, which may be a potential mechanism underlying FA-induced leukemogenesis.
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Affiliation(s)
- Qing Lan
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute (NIH), Bethesda, MD 20892, USA, Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA, Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China, Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands, Department of Occupational Health, Qiaotou Hospital, Dongguan, Guangdong 523323, China and Department of Occupational Health, Dongguan Center for Disease Control and Prevention, Guangdong 523129, China
| | - Martyn T Smith
- Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA
| | - Xiaojiang Tang
- Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China
| | - Weihong Guo
- Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA
| | - Roel Vermeulen
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands
| | - Zhiying Ji
- Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA
| | - Wei Hu
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute (NIH), Bethesda, MD 20892, USA, Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA, Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China, Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands, Department of Occupational Health, Qiaotou Hospital, Dongguan, Guangdong 523323, China and Department of Occupational Health, Dongguan Center for Disease Control and Prevention, Guangdong 523129, China
| | - Alan E Hubbard
- Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA
| | - Min Shen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute (NIH), Bethesda, MD 20892, USA, Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA, Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China, Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands, Department of Occupational Health, Qiaotou Hospital, Dongguan, Guangdong 523323, China and Department of Occupational Health, Dongguan Center for Disease Control and Prevention, Guangdong 523129, China
| | - Cliona M McHale
- Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA
| | - Chuangyi Qiu
- Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China
| | - Songwang Liu
- Department of Occupational Health, Qiaotou Hospital, Dongguan, Guangdong 523323, China and
| | - Boris Reiss
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands
| | - Laura Beane-Freeman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute (NIH), Bethesda, MD 20892, USA, Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA, Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China, Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands, Department of Occupational Health, Qiaotou Hospital, Dongguan, Guangdong 523323, China and Department of Occupational Health, Dongguan Center for Disease Control and Prevention, Guangdong 523129, China
| | - Aaron Blair
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute (NIH), Bethesda, MD 20892, USA, Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA, Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China, Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands, Department of Occupational Health, Qiaotou Hospital, Dongguan, Guangdong 523323, China and Department of Occupational Health, Dongguan Center for Disease Control and Prevention, Guangdong 523129, China
| | - Yichen Ge
- Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China
| | - Jun Xiong
- Department of Occupational Health, Dongguan Center for Disease Control and Prevention, Guangdong 523129, China
| | - Laiyu Li
- Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China
| | - Stephen M Rappaport
- Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA
| | - Hanlin Huang
- Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China
| | - Nathaniel Rothman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute (NIH), Bethesda, MD 20892, USA, Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA, Science and Education Department, Guangdong Poisoning Control Center, Guangzhou 510300, China, Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht NL-3508, The Netherlands, Department of Occupational Health, Qiaotou Hospital, Dongguan, Guangdong 523323, China and Department of Occupational Health, Dongguan Center for Disease Control and Prevention, Guangdong 523129, China
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California at Berkeley, Berkeley, CA 94720, USA,
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Zhang L, Lan Q, Guo W, Hubbard AE, Li G, Rappaport SM, McHale CM, Shen M, Ji Z, Vermeulen R, Yin S, Rothman N, Smith MT. Chromosome-wide aneuploidy study (CWAS) in workers exposed to an established leukemogen, benzene. Carcinogenesis 2011; 32:605-12. [PMID: 21216845 DOI: 10.1093/carcin/bgq286] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Evidence suggests that de novo, therapy-related and benzene-induced acute myeloid leukemias (AML) occur via similar cytogenetic and genetic pathways, several of which involve aneuploidy, the loss or gain of chromosomes. Aneuploidy of specific chromosomes has been detected in benzene-related leukemia patients as well as in healthy benzene-exposed workers, suggesting that aneuploidy precedes and may be a potential mechanism underlying benzene-induced leukemia. Here, we analyzed the peripheral blood lymphocytes of 47 exposed workers and 27 unexposed controls using a novel OctoChrome fluorescence in situ hybridization (FISH) technique that simultaneously detects aneuploidy in all 24 chromosomes. Through this chromosome-wide aneuploidy study (CWAS) approach, we found heterogeneity in the monosomy and trisomy rates of the 22 autosomes when plotted against continuous benzene exposure. In addition, statistically significant, chromosome-specific increases in the rates of monosomy [5, 6, 7, 10, 16 and 19] and trisomy [5, 6, 7, 8, 10, 14, 16, 21 and 22] were found to be dose dependently associated with benzene exposure. Furthermore, significantly higher rates of monosomy and trisomy were observed in a priori defined 'susceptible' chromosome sets compared with all other chromosomes. Together, these findings confirm that benzene exposure is associated with specific chromosomal aneuploidies in hematopoietic cells, which suggests that such aneuploidies may play roles in benzene-induced leukemogenesis.
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Affiliation(s)
- Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720, USA.
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