1
|
Xu K, Ji S, Huang J, Yin L, Zhang J, Sun R, Pu Y. ZMAT3 participated in benzene-caused disruption in self-renewal and differentiation of hematopoietic stem cells via TNF-α/NF-κB pathway. Food Chem Toxicol 2024; 190:114838. [PMID: 38914192 DOI: 10.1016/j.fct.2024.114838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 06/05/2024] [Accepted: 06/21/2024] [Indexed: 06/26/2024]
Abstract
Benzene is a common environmental and occupational pollutant, benzene exposure causes damage to hematopoietic system. ZMAT3 is a zinc finger protein which has important biological functions. In this study, benzene-exposed mouse model and ZMAT3 overexpression and low expression hematopoietic stem cells (HSCs) models were constructed to explore the mechanism of ZMAT3 in benzene-induced hematopoietic toxicity. The results showed that benzene increased the expression of ZMAT3 in mouse bone marrow (BM) cells, HSCs and peripheral blood (PB) leukocyte, and the changes in HSCs were more sensitive than BM and PB cells. In addition, overexpression of ZMAT3 decreased the self-renewal ability of HSCs and reduced the HSCs differentiation into myeloid hematopoietic cells, while low expression has the opposite effect. Besides, over and low expression of ZMAT3 both increased the HSCs differentiation into lymphoid progenitor cells. Moreover, bioinformatics analysis suggested that ZMAT3 was associated with TNF-α signaling pathway, and the correlation was confirmed in mouse model. Meanwhile, the results indicated that ZMAT3 promoted TNF-α mRNA processing by binding to the ARE structural domain on TNF-α and interacting with hnRNP A2/B1 and hnRNP A1 proteins, ultimately activating the NF-κB signaling pathway. This study provides a new mechanism for the study of benzene toxicity.
Collapse
Affiliation(s)
- Kai Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Shuangbin Ji
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Jiawei Huang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Juan Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China.
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China.
| |
Collapse
|
2
|
Li H, Sun Q, Li F, Wang B, Zhu B. Metabolomics of Benzene Exposure and Development of Biomarkers for Exposure Hazard Assessment. Metabolites 2024; 14:377. [PMID: 39057700 PMCID: PMC11278683 DOI: 10.3390/metabo14070377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/23/2024] [Accepted: 06/03/2024] [Indexed: 07/28/2024] Open
Abstract
Benzene, a common industrial solvent, poses significant health risks including poisoning and hematopoietic diseases. However, its precise toxicity mechanisms remain unclear. To assess the health impact of prolonged benzene exposure through metabolomic analyses of exposed workers and benzene-poisoned mice, aiming to identify biomarkers and minimize occupational hazards. This study compared 18 benzene-exposed workers with 18 non-exposed workers, matching for age, lifestyle, and BMI. The metabolites in the workers' samples were analyzed using ultra-high-performance liquid chromatography and mass spectrometry. A larger study included 118 exposed and 158 non-exposed workers, incorporating surveys and routine blood and urine tests with differential metabolites targeted via an enzyme-linked immunosorbent assay. The animal studies consisted of two 15- and 60-day benzene staining and control experiments on 28 C57BL/6J mice, followed by sample collection and organ analysis. The data analysis employed eXtensible Computational Mass Spectrometry (XCMS), Python, MetaboAnalyst 6.0, and SPSS24.0. The exposed workers exhibited altered metabolites indicating external benzene exposure, lower glucose levels, and changes in white blood cell counts and urinary ketone bodies. The plasma metabolomics revealed disturbances in energy and lipid metabolism. The benzene-exposed mice displayed reduced weight gain, behavioral changes, and organ damage. Oxidative stress and abnormal purine and lipid metabolism were observed in both the long-term benzene-exposed workers and benzene-exposed mice. Metabolic markers for the early detection of benzene exposure hazards were identified, underscoring the need to mitigate occupational risks.
Collapse
Affiliation(s)
- Hao Li
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
| | - Qianyu Sun
- Nanjing Jiangning District Center for Disease Prevention and Control, Nanjing 211100, China;
| | - Fei Li
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
| | - Boshen Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210000, China
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
| | - Baoli Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210000, China
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China; (H.L.); (F.L.)
- Jiangsu Preventive Medical Association, Nanjing 210000, China
- Center for Global Health, Nanjing Medical University, Nanjing 210000, China
- Jiangsu Province Engineering Research Center of Public Health Emergency, Nanjing 210000, China
| |
Collapse
|
3
|
Guedes Pinto T, Dias TA, Renno ACM, de Barros Viana M, Ribeiro DA. The role of genetic polymorphisms for inducing genotoxicity in workers occupationally exposed to benzene: a systematic review. Arch Toxicol 2024; 98:1991-2005. [PMID: 38600397 DOI: 10.1007/s00204-024-03744-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 03/18/2024] [Indexed: 04/12/2024]
Abstract
Benzene is used worldwide as a major raw material in a number of industrial processes and also a potent airborne pollutant emitted from traffic exhaust fume. The present systematic review aimed to identify potential associations between genetic polymorphisms and occupational benzene-induced genotoxicity. For this purpose, a total of 22 selected studies were carefully analysed. Our results revealed a positive relation between gene polymorphism and genotoxicity in individuals exposed to benzene, since 17 studies (out of 22) observed positive relations between genotoxicity and polymorphisms in xenobiotics metabolizing genes influencing, therefore, individuals' susceptibility to genomic damage induced by benzene. In other words, individuals with some genotypes may show increase or decrease DNA damage and/or higher or lower DNA-repair potential. As for the quality assessment, 17 studies (out of 22) were categorized as Strong or Moderate and, therefore, we consider our findings to be trustworthy. Taken together, such findings are consistent with the notion that benzene induces genotoxicity in mammalian cells being strongly dependent on the genetic polymorphism. Certainly, such findings are important for clarifying the role of biomarkers related to genotoxicity in human biomonitoring studies.
Collapse
Affiliation(s)
- Thiago Guedes Pinto
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Thayza Aires Dias
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Ana Claudia Muniz Renno
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Milena de Barros Viana
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Daniel Araki Ribeiro
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil.
| |
Collapse
|
4
|
Hoang TT, Rathod RA, Rosales O, Castellanos MI, Schraw JM, Burgess E, Peckham-Gregory EC, Oluyomi AO, Scheurer ME, Hughes AE, Lupo PJ. Residential proximity to oil and gas developments and childhood cancer survival. Cancer 2024. [PMID: 38922855 DOI: 10.1002/cncr.35449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/29/2024] [Accepted: 05/13/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Environmental toxicants may impact survival in children with cancer, but the literature investigating these associations remains limited. Because oil and gas developments emit several hazardous air pollutants, the authors evaluated the relationship between residential proximity to oil or gas development and survival across 21 different pediatric cancers. METHODS The Texas Cancer Registry had 29,730 children (≤19 years old) diagnosed with a primary cancer between 1995 to 2017. Geocoded data were available for 285,266 active oil or gas wells and 109,965 horizontal wells. The authors calculated whether each case lived within 1000 m (yes/no) from each type of oil or gas development. Survival analyses were conducted using Cox regression, adjusting for potential confounders. RESULTS A total of 14.2% of cases lived within 1000 m of an oil or gas well or horizontal well. Living within 1000 m of an oil or gas well was associated with risk of mortality in cases with acute myeloid leukemia (AML) (adjusted hazard ratio [aHR], 1.36; 95% confidence interval [CI], 1.01-1.84) and hepatoblastoma (aHR, 2.13; 95% CI, 1.03-4.39). An inverse association was observed with Ewing sarcoma (aHR, 0.35; 95% CI, 0.13-0.95). No associations were observed with horizontal well. There was evidence of a dose-response effect in children with AML or hepatoblastoma and residential proximity to oil or gas wells. In general, the magnitude of association increased with decreasing distance and with higher number of wells across the three distances. CONCLUSIONS Residential proximity to oil or gas wells at diagnosis is associated with the risk of mortality in children with AML or hepatoblastoma.
Collapse
Affiliation(s)
- Thanh T Hoang
- Division of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
- Cancer and Hematology Center, Texas Children's Hospital, Houston, Texas, USA
| | - Rutu A Rathod
- Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Omar Rosales
- Epidemiology and Population Sciences Section, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Maria I Castellanos
- Division of Pediatric Hematology Oncology, Department of Pediatrics, University of California San Francisco, San Francisco, California, USA
| | - Jeremy M Schraw
- Division of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
- Cancer and Hematology Center, Texas Children's Hospital, Houston, Texas, USA
| | - Elyse Burgess
- Epidemiology and Population Sciences Section, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Erin C Peckham-Gregory
- Division of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
- Cancer and Hematology Center, Texas Children's Hospital, Houston, Texas, USA
| | - Abiodun O Oluyomi
- Epidemiology and Population Sciences Section, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Michael E Scheurer
- Division of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
- Cancer and Hematology Center, Texas Children's Hospital, Houston, Texas, USA
| | - Amy E Hughes
- Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Philip J Lupo
- Division of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
- Cancer and Hematology Center, Texas Children's Hospital, Houston, Texas, USA
| |
Collapse
|
5
|
Kumari P, Soni D, Aggarwal SG. Benzene: A critical review on measurement methodology, certified reference material, exposure limits with its impact on human health and mitigation strategies. Environ Anal Health Toxicol 2024; 39:e2024012-0. [PMID: 39054826 PMCID: PMC11294662 DOI: 10.5620/eaht.2024012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/26/2024] [Indexed: 07/27/2024] Open
Abstract
Benzene is a carcinogenic pollutant with significant emission sources present in the atmosphere. The need for accurate and precise measurement of benzene in the atmosphere has become increasingly evident due to its toxicity and the adverse health effects associated with exposure to different concentrations. Certified reference material (CRM) is essential to establish the traceability of measurement results. The present review compiles the available national and international measurement methods, certified reference materials (CRMs) for benzene and the limit of benzene in fuel composition (v/v) worldwide. Overall, the review indicates the benzene level in the atmosphere and the resulting impacts on the environment and human health, which frequently exceed the exposure limits of different environment regulatory agencies. An extensive literature review was conducted to gather information on monitoring and analysis methods for benzene, revealing that the most preferred method, i.e. Gas Chromatography- Flame Ionization Detector and Mass Spectrometry, is neither cost-effective nor suitable for real-time continuous monitoring. By analysing existing literature and studies, this review will shed light on the understanding of the importance of benzene pollution monitoring in ambient air and its implications for public health. Additionally, it will reflect the mitigation strategies applied by regulators & need for future revisions of air quality guidelines.
Collapse
Affiliation(s)
- Poonam Kumari
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi-110012, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Daya Soni
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi-110012, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Shankar G Aggarwal
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi-110012, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| |
Collapse
|
6
|
Xie S, Friesen MC, Baris D, Schwenn M, Rothman N, Johnson A, Karagas MR, Silverman DT, Koutros S. Occupational exposure to organic solvents and risk of bladder cancer. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2024; 34:546-553. [PMID: 38365975 PMCID: PMC11222140 DOI: 10.1038/s41370-024-00651-4] [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: 03/15/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND Bladder cancer has been linked to several occupations that involve the use of solvents, including those used in the dry-cleaning industry. OBJECTIVES We evaluated exposure to solvents and risk of bladder cancer in 1182 incident cases and 1408 controls from a population-based study. METHODS Exposure to solvents was quantitatively assessed using a job-exposure matrix (CANJEM). Exposure to benzene, toluene and xylene often co-occur. Therefore, we created two additional sets of metrics for combined benzene, toluene and xylene (BTX) exposure: (1) CANJEM-based BTX metrics and (2) hybrid BTX metrics, using an approach that integrates the CANJEM-based BTX metrics together with lifetime occupational histories and exposure-oriented modules that captured within-job, respondent-specific details about tasks and chemicals. Adjusted odds ratios (ORs) and 95% confidence intervals (95% CI) were estimated using logistic regression. RESULTS Bladder cancer risks were increased among those ever exposed to benzene (OR = 1.63, 95% CI: 1.14-2.32), toluene (OR = 1.60, 95% CI: 1.06-2.43), and xylene (OR = 1.67, 95% CI: 1.13-2.48) individually. We further observed a statistically significant exposure-response relationship for cumulative BTX exposure, with a stronger association using the hybrid BTX metrics (ORQ1vsUnexposed = 1.26, 95% CI: 0.83-1.90; ORQ2vsUnexposed = 1.52, 95% CI: 1.00-2.31; ORQ3vsUnexposed = 1.88, 95% CI: 1.24-2.85; and ORQ4vsUnexposed = 2.23, 95% CI: 1.35-3.69) (p-trend=0.001) than using CANJEM-based metrics (p-trend=0.02). IMPACT There is limited evidence about the role of exposure to specific organic solvents, alone or in combination on the risk of developing bladder cancer. In this study, workers with increasing exposure to benzene, toluene, and xylene as a group (BTX) had a statistically significant exposure-response relationship with bladder cancer. Future evaluation of the carcinogenicity of BTX and other organic solvents, particularly concurrent exposure, on bladder cancer development is needed.
Collapse
Affiliation(s)
- Shuai Xie
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Melissa C Friesen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Dalsu Baris
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | | | - Nathaniel Rothman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Alison Johnson
- Formerly Vermont Department of Health, Burlington, VT, USA
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Debra T Silverman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Stella Koutros
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA.
| |
Collapse
|
7
|
Cox LA, Thompson WJ, Mundt KA. Interventional probability of causation (IPoC) with epidemiological and partial mechanistic evidence: benzene vs. formaldehyde and acute myeloid leukemia (AML). Crit Rev Toxicol 2024; 54:252-289. [PMID: 38753561 DOI: 10.1080/10408444.2024.2337435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/25/2024] [Indexed: 05/18/2024]
Abstract
INTRODUCTION Causal epidemiology for regulatory risk analysis seeks to evaluate how removing or reducing exposures would change disease occurrence rates. We define interventional probability of causation (IPoC) as the change in probability of a disease (or other harm) occurring over a lifetime or other specified time interval that would be caused by a specified change in exposure, as predicted by a fully specified causal model. We define the closely related concept of causal assigned share (CAS) as the predicted fraction of disease risk that would be removed or prevented by a specified reduction in exposure, holding other variables fixed. Traditional approaches used to evaluate the preventable risk implications of epidemiological associations, including population attributable fraction (PAF) and the Bradford Hill considerations, cannot reveal whether removing a risk factor would reduce disease incidence. We argue that modern formal causal models coupled with causal artificial intelligence (CAI) and realistically partial and imperfect knowledge of underlying disease mechanisms, show great promise for determining and quantifying IPoC and CAS for exposures and diseases of practical interest. METHODS We briefly review key CAI concepts and terms and then apply them to define IPoC and CAS. We present steps to quantify IPoC using a fully specified causal Bayesian network (BN) model. Useful bounds for quantitative IPoC and CAS calculations are derived for a two-stage clonal expansion (TSCE) model for carcinogenesis and illustrated by applying them to benzene and formaldehyde based on available epidemiological and partial mechanistic evidence. RESULTS Causal BN models for benzene and risk of acute myeloid leukemia (AML) incorporating mechanistic, toxicological and epidemiological findings show that prolonged high-intensity exposure to benzene can increase risk of AML (IPoC of up to 7e-5, CAS of up to 54%). By contrast, no causal pathway leading from formaldehyde exposure to increased risk of AML was identified, consistent with much previous mechanistic, toxicological and epidemiological evidence; therefore, the IPoC and CAS for formaldehyde-induced AML are likely to be zero. CONCLUSION We conclude that the IPoC approach can differentiate between likely and unlikely causal factors and can provide useful upper bounds for IPoC and CAS for some exposures and diseases of practical importance. For causal factors, IPoC can help to estimate the quantitative impacts on health risks of reducing exposures, even in situations where mechanistic evidence is realistically incomplete and individual-level exposure-response parameters are uncertain. This illustrates the strength that can be gained for causal inference by using causal models to generate testable hypotheses and then obtaining toxicological data to test the hypotheses implied by the models-and, where necessary, refine the models. This virtuous cycle provides additional insight into causal determinations that may not be available from weight-of-evidence considerations alone.
Collapse
Affiliation(s)
- Louis A Cox
- Cox Associates and University of Colorado, Denver, CO, USA
| | | | - Kenneth A Mundt
- Independent Consultants in Epidemiology, Amherst, MA, USA
- Adjunct Professor of Epidemiology, University of Massachusetts, Amherst, MA, USA
| |
Collapse
|
8
|
Danforth CG, Portier C, Ensor KB, Hopkins L, Evans B, Quist AJL, McGraw KE, Craft E. Development and demonstration of a data visualization platform of short-term guidelines for ambient air levels of benzene during disaster response in Houston, Texas. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2024; 20:533-546. [PMID: 37462252 DOI: 10.1002/ieam.4814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 08/12/2023]
Abstract
Industrial disasters have caused hazardous air pollution and public health impacts. Response officials have developed limited exposure guidelines to direct them during the event; often, guidelines are outdated and may not represent relevant elevated-exposure periods. The 2019 Intercontinental Terminals Company (ITC) fire in Houston, Texas led to large-scale releases of benzene and presented a public health threat. This incident highlights the need for effective response and nimble, rapid public health communication. We developed a data-driven visualization tool to store, display, and interpret ambient benzene concentrations to assist health officials during environmental emergencies. Guidance values to interpret risk from acute exposure to benzene were updated using recent literature that also considers exposure periodicity. The visualization platform can process data from different sampling instruments and air monitors automatically, and displays information publicly in real time, along with the associated risk information and action recommendations. The protocol was validated by applying it retrospectively to the ITC event. The new guidance values are 6-30 times lower than those derived by the Texas regulatory agency. Fixed-site monitoring data, assessed using the protocol and revised thresholds, indicated that eight shelter-in-place and 17 air-quality alerts may have been considered. At least one of these shelter-in-place alerts corresponded to prolonged, elevated benzene concentrations (~1000 ppb). This new tool addresses essential gaps in the timely communication of air pollution measurements, provides context to understand potential health risks from exposure to benzene, and provides a clear protocol for local officials in responding to industrial air releases of benzene. Integr Environ Assess Manag 2024;20:533-546. © 2023 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).
Collapse
Affiliation(s)
| | | | - Kathy B Ensor
- George R. Brown School of Engineering, Rice University, Houston, Texas, USA
| | | | - Bryan Evans
- Kinder Institute for Urban Research, Rice University, Houston, Texas, USA
| | - Arbor J L Quist
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, USA
| | - Katlyn E McGraw
- Environmental Health Sciences Department, Columbia University Mailman School of Public Health, New York, New York, USA
| | | |
Collapse
|
9
|
Shah D, DeStefano V, Collatuzzo G, Teglia F, Boffetta P. Occupational-related exposure to diesel exhaust and risk of leukemia: systematic review and meta-analysis of cohort studies. Int Arch Occup Environ Health 2024; 97:165-177. [PMID: 38142415 DOI: 10.1007/s00420-023-02034-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/22/2023] [Indexed: 12/26/2023]
Abstract
PURPOSE Diesel exhaust (DE) is an established lung carcinogen. The association with leukemia is not well established. We conducted a systematic review and meta-analysis of cohort studies to determine the association between occupational DE exposure and risk of leukemia. METHODS A systematic literature review was performed to identify all cohort studies on occupational exposure to DE and associated risk of leukemia. STROBE guidelines and PECOS criteria were followed. Meta-analyses with fixed effects (and random-effects model in cases of high heterogeneity) were performed to calculate summary relative risks (RR) and 95% confidence intervals (CI), including subgroup analyses by outcome (mortality or incidence), sex, geographic region, industry type, and study quality. Study quality was assessed using the the Joanna Briggs Institute (JBI) critical appraisal checklist for cohort studies. RESULTS Of the 30 studies retained, 20 (8 from North America, 12 from Europe) reported a total of 33 estimates of the risk of leukemia. Overall, the relative risk (RR) of leukemia was 1.01 (95% CI = 0.97-1.05, I2 = 21.2%, n = 33); corresponding results for leukemia incidence and mortality were RR = 1.02 (95% CI = 0.98-1.06, I2 = 27.9%, n = 19) and RR = 0.91 (95% CI = 0.81-1.02, I2 = 0.0%, n = 15), respectively. The main results were confirmed in analyses by sex and geographic area. A statistically significant association was detected for miners (RR = 1.58, 95% CI = 1.15-2.15, I2 = 77.0%, n = 2) but not for other occupational groups. Publication bias was not detected (p = 0.7). CONCLUSION Our results did not indicate an association between occupational DE exposure and leukemia, with the possible exception of miners. Residual confounding cannot be excluded.
Collapse
Affiliation(s)
- Darshi Shah
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| | - Vincent DeStefano
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| | - Giulia Collatuzzo
- Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - Federica Teglia
- Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - Paolo Boffetta
- Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy.
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA.
- Department of Family, Population and Preventive Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA.
| |
Collapse
|
10
|
Wachter F, Pikman Y. Pathophysiology of Acute Myeloid Leukemia. Acta Haematol 2024; 147:229-246. [PMID: 38228114 DOI: 10.1159/000536152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 01/04/2024] [Indexed: 01/18/2024]
Abstract
BACKGROUND Acute myeloid leukemia (AML) is a biologically heterogenous disease arising in clonally proliferating hematopoietic stem cells. Sequential acquisition of mutations leads to expanded proliferation of clonal myeloid progenitors and failure of differentiation, leading to fulminant AML. SUMMARY Here, we review the pathophysiology of AML with a focus on factors predisposing to AML development, including prior chemo- and radiation therapy, environmental factors, and germline predisposition. KEY MESSAGE Increasing genomic characterization of AML and insight into mechanisms of its development will be critical to improvement in AML prognostication and therapy.
Collapse
Affiliation(s)
- Franziska Wachter
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Yana Pikman
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA
| |
Collapse
|
11
|
Tambasco D, Franklin M, Harris SA, Tibout P, Doria AS. A geospatial assessment of industrial releases and pediatric neuroblastic tumours at diagnosis: A retrospective case series. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2024; 78:455-470. [PMID: 38190263 DOI: 10.1080/19338244.2023.2291734] [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: 08/26/2022] [Accepted: 12/01/2023] [Indexed: 01/10/2024]
Abstract
Environmental risk factors associated with malignancy of pediatric neuroblastic tumours are not well-known and few studies have examined the relationship between industrial emissions and neuroblastic tumour diagnosis. A retrospective case series of 310 patients was evaluated at a tertiary hospital in Toronto, Canada between January 2008, and December 2018. Data from the National Pollutant Release Inventory (NPRI) were used to estimate exposure for a dozen chemicals with known or suspected carcinogenicity or embryotoxicity. Comparative analysis and predictive logistic regression models for malignant versus benign neuroblastic tumours included variables for residential proximity, number, and type of industries, mean total emissions within 2 km, and inverse distance weighted (IDW) quantity of chemical-specific industrial emissions estimated within 10 and 50 km of cases. No significant difference was seen between malignant and benign cases with respect to the mean nearest residential distance to industry, the number or type of industry, or the mean total quantity of industrial emissions within a 2 km radius of residential location of cases. However, there were statistically significant differences in the interpolated IDW emissions of dioxins and furans released between 1993 and 2019 within 10 km. Concentrations were significantly higher in malignant neuroblastic tumours at 1.65 grams (g) toxic equivalent (TEQ) (SD 2.01 g TEQ) compared to benign neuroblastic tumours at 1.13 g TEQ (SD 0.84 g TEQ) (p = 0.05). Within 50 km 3 years prior to diagnosis, malignant cases were exposed to higher levels of aluminum, benzene, and nitrogen dioxide (p = 0.02, p = 0.04, and p = 0.02 respectively). Regression analysis of the IDW emissions within a 50 km radius revealed higher odds of exposure to benzene for malignant neuroblastic tumours (OR = 1.03, CI: 1.01-1.05, p = 0.01). These preliminary findings suggest a potential role of industrial emissions in the development of malignant pediatric neuroblastic tumours and underscore the need for further research to investigate these associations.
Collapse
Affiliation(s)
- Domenica Tambasco
- Department of Family and Community Medicine, Women's College Hospital, Environmental Health Clinic and University of Toronto, Toronto, Ontario, Canada
| | - Meredith Franklin
- Department of Statistical Sciences and School of the Environment, University of Toronto, Toronto, Ontario, Canada
| | - Shelley A Harris
- Divisions of Epidemiology & Occupational and Environmental Health, Dalla Lana School of Public Health, Toronto, Ontario, Canada
| | - Pauline Tibout
- Division of Hematology and Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Andrea S Doria
- Department of Diagnostic Imaging, Research Institute, The Hospital for Sick Children and Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
12
|
Wang T, Cao Y, Xia Z, Christiani DC, Au WW. Review on novel toxicological effects and personalized health hazard in workers exposed to low doses of benzene. Arch Toxicol 2024; 98:365-374. [PMID: 38142431 DOI: 10.1007/s00204-023-03650-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/22/2023] [Indexed: 12/26/2023]
Abstract
Several recent reports indicate health hazards for workers with below occupational limit exposure to benzene (BZ). Our updated review indicates that such low exposures induced traditional as well as novel toxicity/genotoxicity, e.g., increased mitochondria copy numbers, prolongation of telomeres, impairment of DNA damage repair response (DDRR), perturbations of expression in non-coding RNAs, and epigenetic changes. These abnormalities were associated with alterations of gene expression and cellular signaling pathways which affected hematopoietic cell development, expression of apoptosis, autophagy, etc. The overarching mechanisms for induction of health risk are impaired DDRR, inhibition of tumor suppressor genes, and changes of MDM2-p53 axis activities that contribute to perturbed control for cancer pathways. Evaluation of the unusual dose-responses to BZ exposure indicates cellular over-compensation and reprogramming to overcome toxicity and to promote survival. However, these abnormal mechanisms also promote the induction of leukemia. Further investigations indicate that the current exposure limits for workers to BZ are unacceptable. Based on these studies, the new exposure limits should be less than 0.07 ppm rather than the current 1 ppm. This review also emphasizes the need to conduct appropriate bioassays, and to provide more reliable decisions on health hazards as well as on exposure limits for workers. In addition, it is important to use scientific data to provide significantly improved risk assessment, i.e., shifting from a population- to an individual-based risk assessment.
Collapse
Affiliation(s)
- Tongshuai Wang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Yiyi Cao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zhaolin Xia
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, Shanghai, 200032, China
- School of Public Health, Xinjiang Medical University, Urumqi, 830011, China
| | - David C Christiani
- Department of Environmental Health, Harvard University TH Chan School of Public Health, Harvard Medical School, Boston, MA, USA
| | - William W Au
- School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Shantou University Medical College, Shantou, 515041, China.
| |
Collapse
|
13
|
Kononova E, Mežmale L, Poļaka I, Veliks V, Anarkulova L, Vilkoite I, Tolmanis I, Ļeščinska AM, Stonāns I, Pčolkins A, Mochalski P, Leja M. Breath Fingerprint of Colorectal Cancer Patients Based on the Gas Chromatography-Mass Spectrometry Analysis. Int J Mol Sci 2024; 25:1632. [PMID: 38338911 PMCID: PMC10855950 DOI: 10.3390/ijms25031632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The human body emits a multitude of volatile organic compounds (VOCs) via tissues and various bodily fluids or exhaled breath. These compounds collectively create a distinctive chemical profile, which can potentially be employed to identify changes in human metabolism associated with colorectal cancer (CRC) and, consequently, facilitate the diagnosis of this disease. The main goal of this study was to investigate and characterize the VOCs' chemical patterns associated with the breath of CRC patients and controls and identify potential expiratory markers of this disease. For this purpose, gas chromatography-mass spectrometry was applied. Collectively, 1656 distinct compounds were identified in the breath samples provided by 152 subjects. Twenty-two statistically significant VOCs (p-xylene; hexanal; 2-methyl-1,3-dioxolane; 2,2,4-trimethyl-1,3-pentanediol diisobutyrate; hexadecane; nonane; ethylbenzene; cyclohexanone; diethyl phthalate; 6-methyl-5-hepten-2-one; tetrahydro-2H-pyran-2-one; 2-butanone; benzaldehyde; dodecanal; benzothiazole; tetradecane; 1-dodecanol; 1-benzene; 3-methylcyclopentyl acetate; 1-nonene; toluene) were observed at higher concentrations in the exhaled breath of the CRC group. The elevated levels of these VOCs in CRC patients' breath suggest the potential for these compounds to serve as biomarkers for CRC.
Collapse
Affiliation(s)
- Elīna Kononova
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
- Faculty of Medicine, Riga Stradins University, LV-1007 Riga, Latvia;
| | - Linda Mežmale
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
- Riga East University Hospital, LV-1038 Riga, Latvia
- Health Centre 4, LV-1012 Riga, Latvia;
| | - Inese Poļaka
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
- Department of Modelling and Simulation, Riga Technical University, LV-1048 Riga, Latvia
| | - Viktors Veliks
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
| | - Linda Anarkulova
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
- Health Centre 4, LV-1012 Riga, Latvia;
- Liepaja Regional Hospital, LV-3414 Liepaja, Latvia
| | - Ilona Vilkoite
- Health Centre 4, LV-1012 Riga, Latvia;
- Department of Doctoral Studies, Riga Stradins University, LV-1007 Riga, Latvia
- Digestive Diseases Centre GASTRO, LV-1079 Riga, Latvia
| | - Ivars Tolmanis
- Faculty of Medicine, Riga Stradins University, LV-1007 Riga, Latvia;
- Digestive Diseases Centre GASTRO, LV-1079 Riga, Latvia
| | - Anna Marija Ļeščinska
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
- Riga East University Hospital, LV-1038 Riga, Latvia
- Digestive Diseases Centre GASTRO, LV-1079 Riga, Latvia
| | - Ilmārs Stonāns
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
| | - Andrejs Pčolkins
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
- Riga East University Hospital, LV-1038 Riga, Latvia
- Faculty of Medicine, University of Latvia, LV-1586 Riga, Latvia
| | - Pawel Mochalski
- Institute for Breath Research, University of Innsbruck, 6020 Innsbruck, Austria;
- Institute of Chemistry, Jan Kochanowski University of Kielce, 25-369 Kielce, Poland
| | - Mārcis Leja
- Institute of Clinical and Preventive Medicine, University of Latvia, LV-1586 Riga, Latvia; (E.K.); (I.P.); (V.V.); (L.A.); (A.M.Ļ.); (I.S.); (A.P.); (M.L.)
- Riga East University Hospital, LV-1038 Riga, Latvia
- Digestive Diseases Centre GASTRO, LV-1079 Riga, Latvia
- Faculty of Medicine, University of Latvia, LV-1586 Riga, Latvia
| |
Collapse
|
14
|
Bolat S, Demir S, Erer H, Pelit F, Dzingelevičienė R, Ligor T, Buszewski B, Pelit L. MOF-801 based solid phase microextraction fiber for the monitoring of indoor BTEX pollution. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133607. [PMID: 38280318 DOI: 10.1016/j.jhazmat.2024.133607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 01/29/2024]
Abstract
Benzene, toluene, ethylbenzene and xylenes (BTEX) are some of the better-known indoor air pollutants, for which effective monitoring is important. The analysis of BTEX can be performed by different type of solid phase microextraction (SPME) fibers. This study presents a proposal for a low cost, convenient and environmentally friendly analytical method for the determination of BTEX in air samples using custom made SPME fibers. In this context, custom made metal organic frameworks (MOF-801) were coated on a stainless-steel wire for SPME fiber preparation. The analysis of BTEX was performed by introducing SPME fiber into an analyte-containing Tedlar bag in steady-state conditions. After the sampling step, the analytes were analyzed using gas chromatography mass spectrometry in selected ion monitoring mode. Parameters that affect the analysis results were optimized; these include desorption temperature and time, preconditioning time, extraction temperature and time, and sample volume. Under optimized conditions, analytical figure of merits of developed method were obtained, including limits of detection (LOD) (0.012 - 0.048 mg/m3), linear ranges (0.041-18 mg/m3), intraday and interday repeatability (2.08 - 4.04% and 3.94 - 6.35%), and fiber to fiber reproducibility (7.51 - 11.17%). The proposed method was successfully applied to real air samples with an acceptable recovery values between 84.5% and 110.9%. The developed method can be applied for the effective monitoring of BTEX.
Collapse
Affiliation(s)
- Serkan Bolat
- Department of Occupational Health and Safety, Vocational School, İzmir University of Economics, İzmir, Türkiye; Department of Chemistry, Faculty of Science, Ege University, İzmir, Türkiye.
| | - Sevde Demir
- Department of Chemistry, Faculty of Science, Eskişehir Osmangazi University, Eskişehir, Türkiye
| | - Hakan Erer
- Department of Chemistry, Faculty of Science, Eskişehir Osmangazi University, Eskişehir, Türkiye
| | - Füsun Pelit
- Department of Chemistry, Faculty of Science, Ege University, İzmir, Türkiye; Translational Pulmonary Research Center (Ege TPRC), Ege University, İzmir, Türkiye
| | - Reda Dzingelevičienė
- Faculty of Health Sciences, Marine Research Institute, Klaipeda University, Klaipeda, Lithuania
| | - Tomasz Ligor
- Department of Environmental Chemistry and Bioanalytics, Nicolaus Copernicus University, Toruń, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Nicolaus Copernicus University, Toruń, Poland; Prof. Jan Czochralski Kuyavian-Pomeranian Science and Technology Center, 4 Krasińskiego str., 87 100 Toruń, Poland
| | - Levent Pelit
- Department of Chemistry, Faculty of Science, Ege University, İzmir, Türkiye; Translational Pulmonary Research Center (Ege TPRC), Ege University, İzmir, Türkiye
| |
Collapse
|
15
|
Chiou JT, Lee YC, Chang LS. Hydroquinone-selected chronic myelogenous leukemia cells are sensitive to chloroquine-induced cytotoxicity via MCL1 suppression and glycolysis inhibition. Biochem Pharmacol 2023; 218:115934. [PMID: 37989415 DOI: 10.1016/j.bcp.2023.115934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/12/2023] [Accepted: 11/16/2023] [Indexed: 11/23/2023]
Abstract
Previous studies have provided evidence that repeated exposure to the benzene metabolite hydroquinone (HQ) induces malignant transformation and increases basal autophagy in the chronic myeloid leukemia (CML) cell line K562. This study explored the cytotoxicity of the autophagy inhibitor chloroquine (CQ) on parental and HQ-selected K562 (K562/HQ) cells. CQ triggered apoptosis in these cells independently of inhibiting autophagic flux; however, in K562/HQ cells, CQ-induced cytotoxicity was higher than in K562 cells. Mechanistically, CQ-induced NOXA upregulation led to MCL1 downregulation and mitochondrial depolarization in K562/HQ cells. MCL1 overexpression or NOXA silencing attenuated CQ-mediated cytotoxicity in K562/HQ cells. CQ triggered ERK inactivation to increase Sp1, NFκB, and p300 expression, and co-assembly of Sp1, NFκB, and p300 in the miR-29a promoter region coordinately upregulated miR-29a transcription. CQ-induced miR-29a expression destabilized tristetraprolin (TTP) mRNA, which in turn reduced TTP-mediated NOXA mRNA decay, thereby increasing NOXA protein expression. A similar mechanism explained the CQ-induced downregulation of MCL1 in K562 cells. K562/HQ cells relied more on glycolysis for ATP production than K562 cells, whereas inhibition of glycolysis by CQ was greater in K562/HQ cells than in K562 cells. Likewise, CQ-induced MCL1 suppression and glycolysis inhibition resulted in higher cytotoxicity in CML KU812/HQ cells than in KU812 cells. Taken together, our data confirm that CQ inhibits MCL1 expression through the ERK/miR-29a/TTP/NOXA pathway, and that inhibition of glycolysis is positively correlated to higher cytotoxicity of CQ on HQ-selected CML cells.
Collapse
Affiliation(s)
- Jing-Ting Chiou
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Yuan-Chin Lee
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
16
|
Wang LJ, Lee YC, Chiou JT, Chen YJ, Chang LS. Effects of SIDT2 on the miR-25/NOX4/HuR axis and SIRT3 mRNA stability lead to ROS-mediated TNF-α expression in hydroquinone-treated leukemia cells. Cell Biol Toxicol 2023; 39:2207-2225. [PMID: 35302183 DOI: 10.1007/s10565-022-09705-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 02/28/2022] [Indexed: 11/02/2022]
Abstract
Our previous studies indicated that the benzene metabolite hydroquinone (HQ) evokes the ROS/p38 MAPK/protein phosphatase 2A/tristetraprolin axis, leading to increased TNF-α expression in human acute myeloid leukemia cell lines U937 and HL-60. In this study, we aimed to identify the upstream pathway involved in ROS-mediated TNF-α expression. HQ treatment increased SIDT2 expression, which subsequently decreased miR-25 and SIRT3 expression in U937 cells. Notably, miR-25 downregulation promoted SIDT2 expression in HQ-treated U937 cells. SIDT2 induced lysosomal degradation of SIRT3 mRNA, but inhibited miR-25 expression through a lysosome-independent pathway. MiR-25 inhibition reduced NOX4 mRNA turnover, resulting in increased NOX4 protein levels. NOX4 induces mitochondrial ROS production and HuR downregulation. Restoration of HuR expression increased SIRT3 expression, suggesting that NOX4-mediated HuR downregulation promotes SIDT2-mediated degradation of SIRT3 mRNA. Inhibition of NOX4 or SIRT3 overexpression abolished HQ-induced ROS production, thereby abolishing TNF-α upregulation. Overall, these results indicate that SIDT2 regulates the miR-25/NOX4/HuR axis and SIRT3 mRNA destabilization, leading to ROS-mediated TNF-α upregulation in HQ-treated U937 cells. HQ-induced increase in TNF-α expression in HL-60 cells was also mediated through a similar pathway.
Collapse
Affiliation(s)
- Liang-Jun Wang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Yuan-Chin Lee
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Jing-Ting Chiou
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Ying-Jung Chen
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| |
Collapse
|
17
|
Shala NK, Stenehjem JS, Babigumira R, Liu FC, Berge LAM, Silverman DT, Friesen MC, Rothman N, Lan Q, Hosgood HD, Samuelsen SO, Bråtveit M, Kirkeleit J, Andreassen BK, Veierød MB, Grimsrud TK. Exposure to benzene and other hydrocarbons and risk of bladder cancer among male offshore petroleum workers. Br J Cancer 2023; 129:838-851. [PMID: 37464024 PMCID: PMC10449774 DOI: 10.1038/s41416-023-02357-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Occupational exposures constitute the second leading cause of urinary bladder cancer after tobacco smoking. Increased risks have been found in the petroleum industry, but high-quality exposure data are needed to explain these observations. METHODS Using a prospective case-cohort design, we analysed 189 bladder cancer cases (1999-2017) and 2065 randomly drawn non-cases from the Norwegian Offshore Petroleum Workers cohort. Cases were identified in the Cancer Registry of Norway, while work histories (1965-1998) and lifestyle factors were recorded by questionnaire at baseline (1998). Occupational petroleum-related hydrocarbon exposures were assessed by expert-developed job-exposure matrices. Hazard ratios were estimated by weighted Cox-regressions, adjusted for age, tobacco smoking, education, and year of first employment, and with lagged exposures. RESULTS Increased risks were found in benzene-exposed workers, either long-term exposure (≥18.8 years, HR = 1.89, 95% CI: 1.14-3.13; p-trend = 0.044) or high-level cumulative benzene exposure (HR = 1.60, 95% CI: 0.97-2.63; p-trend = 0.065), compared with the unexposed. Associations persisted with 20-year exposure lag. No associations were found with skin or inhalation exposure to crude oil, mineral oil (lubrication, hydraulics, turbines, drilling), or diesel exhaust. CONCLUSIONS The results suggest that exposures in the benzene fraction of the petroleum stream may be associated with increased bladder cancer risk.
Collapse
Affiliation(s)
- Nita K Shala
- Department of Research, Cancer Registry of Norway, Oslo, Norway.
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
| | - Jo S Stenehjem
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Ronnie Babigumira
- Department of Research, Cancer Registry of Norway, Oslo, Norway
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Fei-Chih Liu
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Leon A M Berge
- Department of Research, Cancer Registry of Norway, Oslo, Norway
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Debra T Silverman
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Bethesda, MD, USA
| | - Melissa C Friesen
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Bethesda, MD, USA
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Bethesda, MD, USA
| | - Qing Lan
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Bethesda, MD, USA
| | - H Dean Hosgood
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, The Bronx, NY, USA
| | | | - Magne Bråtveit
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Jorunn Kirkeleit
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Occupational Medicine and Epidemiology, National Institute of Occupational Health, Oslo, Norway
| | | | - Marit B Veierød
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Tom K Grimsrud
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| |
Collapse
|
18
|
Ye L, Jiang X, Chen L, Chen S, Li H, Du R, You W, Peng J, Guo P, Zhang R, Yu H, Dong G, Li D, Li X, Chen W, Xing X, Xiao Y. Moderate body lipid accumulation in mice attenuated benzene-induced hematotoxicity via acceleration of benzene metabolism and clearance. ENVIRONMENT INTERNATIONAL 2023; 178:108113. [PMID: 37506515 DOI: 10.1016/j.envint.2023.108113] [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: 04/17/2023] [Revised: 06/16/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Recent population and animal studies have revealed a correlation between fat content and the severity of benzene-induced hematologic toxicity. However, the precise impact of lipid deposition on benzene-induced hematotoxicity and the underlying mechanisms remain unclear. In this study, we established a mouse model with moderate lipid accumulation by subjecting the mice to an 8-week high-fat diet (45% kcal from fat, HFD), followed by 28-day inhalation of benzene at doses of 0, 1, 10, and 100 ppm. The results showed that benzene exposure caused a dose-dependent reduction of peripheral white blood cell (WBC) counts in both diet groups. Notably, this reduction was less pronounced in the HFD-fed mice, suggesting that moderate lipid accumulation mitigates benzene-related hematotoxicity. To investigate the molecular basis for this effect, we performed bioinformatics analysis of high-throughput transcriptome sequencing data, which revealed that moderate lipid deposition alters mouse metabolism and stress tolerance towards xenobiotics. Consistently, the expression of key metabolic enzymes, such as Cyp2e1 and Gsta1, were upregulated in the HFD-fed mice upon benzene exposure. Furthermore, we utilized a real-time exhaled breath detection technique to monitor exhaled benzene metabolites, and the results indicated that moderate lipid deposition enhanced metabolic activation and increased the elimination of benzene metabolites. Collectively, these findings demonstrate that moderate lipid deposition confers reduced susceptibility to benzene-induced hematotoxicity in mice, at least in part, by accelerating benzene metabolism and clearance.
Collapse
Affiliation(s)
- Lizhu Ye
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xinhang Jiang
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Liping Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Shen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Huiyao Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Rui Du
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Wei You
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Jing Peng
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Ping Guo
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Rui Zhang
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Hongyao Yu
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Guanghui Dong
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Daochuan Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xue Li
- Institute of Mass Spectrometry and Atmospheric Environment, Jinan University, Guangzhou 510632, China
| | - Wen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiumei Xing
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Yongmei Xiao
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| |
Collapse
|
19
|
Marrero RJ, Lamba JK. Current Landscape of Genome-Wide Association Studies in Acute Myeloid Leukemia: A Review. Cancers (Basel) 2023; 15:3583. [PMID: 37509244 PMCID: PMC10377605 DOI: 10.3390/cancers15143583] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Acute myeloid leukemia (AML) is a clonal hematopoietic disease that arises from chromosomal and genetic aberrations in myeloid precursor cells. AML is one of the most common types of acute leukemia in adults; however, it is relatively rare overall, comprising about 1% of all cancers. In the last decade or so, numerous genome-wide association studies (GWAS) have been conducted to screen between hundreds of thousands and millions of variants across many human genomes to discover genetic polymorphisms associated with a particular disease or phenotype. In oncology, GWAS has been performed in almost every commonly occurring cancer. Despite the increasing number of studies published regarding other malignancies, there is a paucity of GWAS studies for AML. In this review article, we will summarize the current status of GWAS in AML.
Collapse
Affiliation(s)
- Richard J. Marrero
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Jatinder K. Lamba
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
- University of Florida Health Cancer Center, University of Florida, Gainesville, FL 32610, USA
- Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| |
Collapse
|
20
|
Vermeulen R, Lan Q, Qu Q, Linet MS, Zhang L, Li G, Portengen L, Vlaanderen J, Sungkyoon K, Hayes RB, Yin S, Smith MT, Rappaport SM, Rothman N. Nonlinear low dose hematotoxicity of benzene; a pooled analyses of two studies among Chinese exposed workers. ENVIRONMENT INTERNATIONAL 2023; 177:108007. [PMID: 37290291 DOI: 10.1016/j.envint.2023.108007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND Impairment of the hematopoietic system is one of the primary adverse health effects from exposure to benzene. We previously have shown that exposure to benzene at low levels (<1 ppm) affects the blood forming system and that these effects were proportionally stronger at lower versus higher levels of benzene exposure. This observation is potentially explained by saturation of enzymatic systems. METHODS Here we extend these analyses by detailed modeling of the exposure response association of benzene and its major metabolites (i.e. catechol, muconic acid, phenol, and hydroquinone) on peripheral white blood cell (WBC) counts and its major cell-subtypes (i.e. granulocytes, lymphocytes, and monocytes) using two previously published cross-sectional studies among occupationally exposed Chinese workers. RESULTS Supra-linear exposure response associations were observed between air benzene concentrations (range ∼ 0.1 - 100 ppm) and WBC counts and its cell-subtypes, with a larger than proportional decrease in cell counts at lower than at higher levels of benzene exposure. The hematotoxicity associations were largely similar in shape when the analyses were repeated with benzene urinary metabolites suggesting that enzymatic saturation is not a full explanation of the observed non-linearity with WBC endpoints. DISCUSSION We hypothesize that the flattening of the exposure response curve especially at higher benzene exposure levels may reflect a response by the bone marrow to maintain hematopoietic homeostasis. Toxicity to the bone marrow and an induced hyper-proliferative response could both contribute to risk of subsequently developing a hematopoietic malignancy. Additional work is needed to explore this hypothesis.
Collapse
Affiliation(s)
- Roel Vermeulen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Qing Lan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892, United States
| | - Qingshan Qu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, United States
| | - Martha S Linet
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892, United States
| | - Luoping Zhang
- School of Public Health, University of California, Berkeley, CA 94720, United States
| | - Guilan Li
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Lutzen Portengen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Jelle Vlaanderen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Kim Sungkyoon
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | | | - Songnian Yin
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Martyn T Smith
- School of Public Health, University of California, Berkeley, CA 94720, United States
| | - Stephen M Rappaport
- School of Public Health, University of California, Berkeley, CA 94720, United States
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892, United States
| |
Collapse
|
21
|
Santos MVC, Feltrin AS, Costa-Amaral IC, Teixeira LR, Perini JA, Martins DC, Larentis AL. Network Analysis of Biomarkers Associated with Occupational Exposure to Benzene and Malathion. Int J Mol Sci 2023; 24:ijms24119415. [PMID: 37298367 DOI: 10.3390/ijms24119415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/21/2023] [Accepted: 05/03/2023] [Indexed: 06/12/2023] Open
Abstract
Complex diseases are associated with the effects of multiple genes, proteins, and biological pathways. In this context, the tools of Network Medicine are compatible as a platform to systematically explore not only the molecular complexity of a specific disease but may also lead to the identification of disease modules and pathways. Such an approach enables us to gain a better understanding of how environmental chemical exposures affect the function of human cells, providing better perceptions about the mechanisms involved and helping to monitor/prevent exposure and disease to chemicals such as benzene and malathion. We selected differentially expressed genes for exposure to benzene and malathion. The construction of interaction networks was carried out using GeneMANIA and STRING. Topological properties were calculated using MCODE, BiNGO, and CentiScaPe, and a Benzene network composed of 114 genes and 2415 interactions was obtained. After topological analysis, five networks were identified. In these subnets, the most interconnected nodes were identified as: IL-8, KLF6, KLF4, JUN, SERTAD1, and MT1H. In the Malathion network, composed of 67 proteins and 134 interactions, HRAS and STAT3 were the most interconnected nodes. Path analysis, combined with various types of high-throughput data, reflects biological processes more clearly and comprehensively than analyses involving the evaluation of individual genes. We emphasize the central roles played by several important hub genes obtained by exposure to benzene and malathion.
Collapse
Affiliation(s)
- Marcus Vinicius C Santos
- Studies Center of Worker's Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21041-210, RJ, Brazil
| | - Arthur S Feltrin
- Center for Mathematics, Computation and Cognition, Federal University of ABC, Santo André 09210-580, SP, Brazil
| | - Isabele C Costa-Amaral
- Studies Center of Worker's Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21041-210, RJ, Brazil
| | - Liliane R Teixeira
- Studies Center of Worker's Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21041-210, RJ, Brazil
| | - Jamila A Perini
- Research Laboratory of Pharmaceutical Sciences (LAPESF), State University of Rio de Janeiro (West Zone-UERJ-ZO), Rio de Janeiro 23070-200, RJ, Brazil
| | - David C Martins
- Center for Mathematics, Computation and Cognition, Federal University of ABC, Santo André 09210-580, SP, Brazil
| | - Ariane L Larentis
- Studies Center of Worker's Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21041-210, RJ, Brazil
| |
Collapse
|
22
|
Lu Y, Sui P, Li J, Lian N, Zhou J, Cheng X, Wang QF, Xing C, Xu P. Benzene metabolite hydroquinone enhances self-renewal and proliferation of preleukemic cells through the Ppar-γ pathway. Toxicol Lett 2023:S0378-4274(23)00183-2. [PMID: 37245849 DOI: 10.1016/j.toxlet.2023.05.009] [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: 12/21/2022] [Revised: 05/08/2023] [Accepted: 05/19/2023] [Indexed: 05/30/2023]
Abstract
Benzene is a known hematotoxic and leukemogenic chemical. Exposure to benzene cause inhibition of hematopoietic cells. However, the mechanism of how the hematopoietic cells inhibited by benzene undergo malignant proliferation is unknown. The cells carrying leukemia-associated fusion genes are present in healthy individuals and predispose the carriers to the development of leukemia. To identify the effects of benzene on hematopoietic cells, preleukemic bone marrow (PBM) cells derived from transgenic mice carrying the Mll-Af9 fusion gene were treated with benzene metabolite hydroquinone in serial replating of colony-forming unit (CFU) assay. RNA sequencing was further employed to identify the potential key genes that contributed to benzene-initiated self-renewal and proliferation. We found that hydroquinone induced a significant increase in colony formation in PBM cells. Peroxisome proliferator-activated receptor gamma (Ppar-γ) pathway, which plays a critical role in carcinogenesis in multiple tumors, was significantly activated after hydroquinone treatment. Notably, the increased numbers of the CFUs and total PBM cells induced by hydroquinone were significantly reduced by a specific Ppar-γ inhibitor (GW9662). These findings indicated that hydroquinone can enhance self-renewal and proliferation of preleukemic cells by activating the Ppar-γ pathway. Our results provide insight into the missing link between premalignant status and development of benzene-induced leukemia, which can be intervened and prevented.
Collapse
Affiliation(s)
- Yedan Lu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China; Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, China
| | - Pinpin Sui
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jinzhe Li
- 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 Lian
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China; Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, China
| | - Jin Zhou
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiurong Cheng
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qian-Fei Wang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Caihong Xing
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Peiyu Xu
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, China.
| |
Collapse
|
23
|
Yusoff NA, Abd Hamid Z, Budin SB, Taib IS. Linking Benzene, in Utero Carcinogenicity and Fetal Hematopoietic Stem Cell Niches: A Mechanistic Review. Int J Mol Sci 2023; 24:ijms24076335. [PMID: 37047305 PMCID: PMC10094243 DOI: 10.3390/ijms24076335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/19/2023] [Accepted: 03/23/2023] [Indexed: 03/30/2023] Open
Abstract
Previous research reported that prolonged benzene exposure during in utero fetal development causes greater fetal abnormalities than in adult-stage exposure. This phenomenon increases the risk for disease development at the fetal stage, particularly carcinogenesis, which is mainly associated with hematological malignancies. Benzene has been reported to potentially act via multiple modes of action that target the hematopoietic stem cell (HSCs) niche, a complex microenvironment in which HSCs and multilineage hematopoietic stem and progenitor cells (HSPCs) reside. Oxidative stress, chromosomal aberration and epigenetic modification are among the known mechanisms mediating benzene-induced genetic and epigenetic modification in fetal stem cells leading to in utero carcinogenesis. Hence, it is crucial to monitor exposure to carcinogenic benzene via environmental, occupational or lifestyle factors among pregnant women. Benzene is a well-known cause of adult leukemia. However, proof of benzene involvement with childhood leukemia remains scarce despite previously reported research linking incidences of hematological disorders and maternal benzene exposure. Furthermore, accumulating evidence has shown that maternal benzene exposure is able to alter the developmental and functional properties of HSPCs, leading to hematological disorders in fetus and children. Since HSPCs are parental blood cells that regulate hematopoiesis during the fetal and adult stages, benzene exposure that targets HSPCs may induce damage to the population and trigger the development of hematological diseases. Therefore, the mechanism of in utero carcinogenicity by benzene in targeting fetal HSPCs is the primary focus of this review.
Collapse
|
24
|
Pech K, Pérez-Herrera N, Vértiz-Hernández ÁA, Lajous M, Farías P. Health Risk Assessment in Children Occupationally and Para-Occupationally Exposed to Benzene Using a Reverse-Translation PBPK Model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2275. [PMID: 36767642 PMCID: PMC9915979 DOI: 10.3390/ijerph20032275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Benzene is a known human carcinogen and one of the ten chemicals of major public health concern identified by the World Health Organization. Our objective was to evaluate benzene's carcinogenic and non-carcinogenic health risks (current and projected) in highly exposed children in Yucatan, Mexico. Benzene exposure was estimated through a reverse-translation, four-compartment, physiologically based pharmacokinetic model (PBPK) based on previously performed urine trans, trans-muconic acid (benzene metabolite) determinations. Using a risk assessment methodology, the carcinogenic and non-carcinogenic risks of benzene were estimated for 6-12-year-old children from a family of shoemakers. The children's hazard quotients for decreased lymphocyte count were 27 and 53 for 4 and 8 h/day exposure, respectively, and 37 for the projected 8 h/day exposure in adults. The risks of developing leukemia were 2-6 cases in 1000 children exposed 4 h/day; 4-10 cases in 1000 children exposed 8 h/day, and 2-9 cases in 1000 adults with an 8 h/day lifetime exposure. Children in Yucatan working in shoe-manufacturing workshops, or living next to them, are exposed to benzene concentrations above the reference concentration and have unacceptably high risks of presenting with non-carcinogenic and carcinogenic hematologic symptoms, now and in the future. Interventions to prevent further exposure and mitigate health risks are necessary.
Collapse
Affiliation(s)
- Kristal Pech
- Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
| | - Norma Pérez-Herrera
- Laboratorio de Enfermedades Crónicas y Degenerativas, Unidad Interinstitucional de Investigación Clínica y Epidemiológica, Universidad Autónoma de Yucatán, Mérida 97000, Mexico
| | | | - Martín Lajous
- Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Paulina Farías
- Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
| |
Collapse
|
25
|
Lee WT, Lee WR, Lee W, Yoon JH, Lee J. Risks of Leukemia in Various Industrial Groups in Korea: A Retrospective National Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1187. [PMID: 36673942 PMCID: PMC9859428 DOI: 10.3390/ijerph20021187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/27/2022] [Accepted: 01/01/2023] [Indexed: 06/17/2023]
Abstract
It is known that occupational exposure to specific agents is associated with leukemia. However, whether the occupational risks of leukemia differ among various industrial groups remains unclear. Therefore, the purpose of this study was to elucidate the occupational risks of leukemia among different worker groups by industry. Data for a total of 11,050,398 people from the National Health Insurance System's claim data from 2007 to 2015 were analyzed. By cohort inclusion of workers whose industry had not changed for three years and with total workers as a control group, the risk for a specific industry group was expressed as an age-standardized incidence ratio (SIR). Among groups by industry, 'Manufacture of motor vehicles and engines for motor vehicles', 'Sale of motor vehicle parts and accessories', and 'Personal care services' showed significantly higher SIRs. In division analysis, the 'Manufacture of other machinery and equipment' and 'Waste collection, treatment and disposal activities' divisions showed significantly higher SIRs than other divisions. We identified an increased risk of leukemia in workers of certain industries in Korea. Based on the results of this study, it is necessary to create a policy to protect workers at risk of leukemia. Various additional studies are needed to protect workers by revealing more precise relationships between individual hazardous substances, processes, and leukemia.
Collapse
Affiliation(s)
- Won-Tae Lee
- Department of Occupational and Environmental Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Public Health, Graduate School, Yonsei University, Seoul 03722, Republic of Korea
| | - Woo-Ri Lee
- Division of Cancer Control and Policy, National Cancer Control Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Wanhyung Lee
- Department of Occupational and Environmental Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon 21565, Republic of Korea
| | - Jin-Ha Yoon
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jongin Lee
- Department of Occupational and Environmental Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea College of Medicine, Seoul 06591, Republic of Korea
| |
Collapse
|
26
|
Jena AB, Samal RR, Dandapat J, Subudhi U. Thermodynamics of benzoquinone-induced conformational changes in nucleic acids and human serum albumin. Chem Biol Interact 2023; 369:110281. [PMID: 36436547 DOI: 10.1016/j.cbi.2022.110281] [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: 08/16/2022] [Revised: 11/06/2022] [Accepted: 11/21/2022] [Indexed: 11/26/2022]
Abstract
Biological macromolecules such as proteins, nucleic acids, carbohydrates and lipids, play a crucial role in biochemical and molecular processes. Thus, the study of the structure-function relationship of biomolecules in presence of ligands is an important aspect of structural biology. The current communication describes the chemico-biological interaction between benzene metabolite para-benzoquinone (BQ) with B-form of nucleic acids (B-DNA) and human serum albumin (HSA). The binding ability of HSA towards bromocresol green (BCG) was significantly suppressed when exposed to increasing concentrations of BQ in the presence of various physiological buffers. Further, the native fluorescence of HSA was drastically reduced and the secondary structures of HSA were significantly compromised with increasing concentrations of BQ. In vitro and in silico studies also revealed that BQ binds to domains I and II of HSA and thus altering the conformation of HSA which may potentially affect plasma osmotic pressure, as well as the binding and transport of numerous endogenous and exogenous molecules. Similarly, BQ interacts directly to the GC region of B-DNA particularly in the minor groove which was also assessed by computational docking studies. Isothermal titration calorimetry data suggest higher binding affinity of BQ towards DNA than HSA. Various spectroscopic observations also suggest that BQ binds to DNA preferably in the minor grooves. Thus, the results revealed that BQ may play a key role in inducing mutagenicity, either by formation of adducts on GC regions or by accelerating oxidative damage to biomacromolecules through chemico-biological interactions.
Collapse
Affiliation(s)
- Atala B Jena
- Department of Biotechnology, Utkal University, Bhubaneswar, 751004, Odisha, India; Centre of Excellence in Integrated Omics & Computational Biology, Utkal University, Bhubaneswar, 751004, Odisha, India
| | - Rashmi R Samal
- Biochemistry & Biophysics Laboratory, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Jagneshwar Dandapat
- Department of Biotechnology, Utkal University, Bhubaneswar, 751004, Odisha, India; Centre of Excellence in Integrated Omics & Computational Biology, Utkal University, Bhubaneswar, 751004, Odisha, India.
| | - Umakanta Subudhi
- Biochemistry & Biophysics Laboratory, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India.
| |
Collapse
|
27
|
Moubarz G, Saad-Hussein A, Shahy EM, Mahdy-Abdallah H, Mohammed AMF, Saleh IA, Abo-Zeid MAM, Abo-Elfadl MT. Lung cancer risk in workers occupationally exposed to polycyclic aromatic hydrocarbons with emphasis on the role of DNA repair gene. Int Arch Occup Environ Health 2023; 96:313-329. [PMID: 36287252 PMCID: PMC9905182 DOI: 10.1007/s00420-022-01926-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 09/27/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Workers in secondary aluminum production plants are occupationally exposed to polycyclic aromatic hydrocarbons (PAHs). We aimed to monitor the concentrations of PAHs in air and in serum of workers at two secondary aluminum production plants. We also investigated the potential risk of lung cancer development among PAHs exposed workers with emphasis on the role of A1AT mutation and APEX1 gene polymorphisms. METHODS This study included 177 workers from administrative departments and production lines. Blood samples were obtained for estimation of benzo(a)pyrene diol epoxide albumin adduct (BPDE-Alb adduct), anti-Cyclin-B1 marker (CCNB1) and squamous cell carcinoma antigen (SCCAg). Genes' polymorphism for human apurinic/apyrimidinic endonuclease (APEX1) and alpha-1-anti-trypsin (A1AT) gene mutation were detected. RESULTS There was a significant increase in the level of BPDE-Alb adduct among exposed workers in comparison to non-exposed group. Moreover, 41.67% of exposed workers in El Tebbin had BPDE-Alb adduct level ≥ 15 ng/ml versus 29.6% of workers in Helwan factory. There was a significant increase in tumor markers (SCCAg and CCNB1) among workers whose BPDE-Alb adduct ≥ 15 ng/ml. There was a significant increase in the level of BPDE-Alb adducts in exposed workers carrying homozygous APEX1 genotype Glu/Glu. Furthermore, exposed workers with the Glu/Glu genotype had high tumor markers levels. There was a significant increase in levels of BPDE-Alb adducts in workers carrying A1AT mutant allele. Moreover, workers with mutant A1AT genotype had significantly high tumor markers (SCCAg and CCNB1) levels. CONCLUSION Therefore, we conclude that aluminum workers may be at a potential risk of lung cancer development due to PAHs exposure. Although PAHs concentrations in air were within the permissible limits, yet evidence of DNA damage was present as expressed by high BPDE-albumin adduct level in exposed workers. Also, elevation of tumor markers (SCCAg and CCNB1) in exposed workers points to the importance of periodic biological monitoring of such workers to protect them from cancer risk.
Collapse
Affiliation(s)
- Gehan Moubarz
- Environmental and Occupational Medicine Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt.
| | - Amal Saad-Hussein
- Environmental and Occupational Medicine Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt
| | - Eman M. Shahy
- Environmental and Occupational Medicine Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt
| | - Heba Mahdy-Abdallah
- Environmental and Occupational Medicine Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt
| | - Atef M. F. Mohammed
- Air Pollution Research Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt
| | - Inas A. Saleh
- Air Pollution Research Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt
| | - Mona A. M. Abo-Zeid
- Genetics and Cytology Department, Genetic Engineering and Biotechnology Research Institute, National Research Centre, Giza, Egypt ,Cancer Biology and Genetics Laboratory, Centre of Excellence for Advanced Sciences, National Research Centre, Giza, Egypt
| | - Mahmoud T. Abo-Elfadl
- Cancer Biology and Genetics Laboratory, Centre of Excellence for Advanced Sciences, National Research Centre, Giza, Egypt ,Biochemistry Department, Genetic Engineering and Biotechnology Research Institute, National Research Centre, Giza, Egypt
| |
Collapse
|
28
|
Willis MD, Carozza SE, Hystad P. Congenital anomalies associated with oil and gas development and resource extraction: a population-based retrospective cohort study in Texas. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2023; 33:84-93. [PMID: 36460921 PMCID: PMC9852077 DOI: 10.1038/s41370-022-00505-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 05/02/2023]
Abstract
BACKGROUND Oil and gas extraction-related activities produce air and water pollution that contains known and suspected teratogens. To date, health impacts of in utero exposure to these activities is largely unknown. OBJECTIVE We investigated associations between in utero exposure to oil and gas extraction activity in Texas, one of the highest producers of oil and gas, and congenital anomalies. METHODS We created a population-based birth cohort between 1999 and 2009 with full maternal address at delivery and linked to the statewide congenital anomaly surveillance system (n = 2,234,138 births, 86,315 cases). We examined extraction-related exposures using tertiles of inverse distance-squared weighting within 5 km for drilling site count, gas production, oil production, and produced water. In adjusted logistic regression models, we calculated odds of any congenital anomaly and 10 specific organ sites using two comparison groups: 1) 5 km of future drilling sites that are not yet operating (a priori main models), and 2) 5-10 km of an active well. RESULTS Using the temporal comparison group, we find increased odds of any congenital anomaly in the highest tertile exposure group for site count (OR: 1.25; 95% CI: 1.21, 1.30), oil production (OR: 1.08; 95% CI: 1.04, 1.12), gas production (1.20; 95% CI: 1.17, 1.23), and produced water (OR: 1.17; 95% CI: 1.14, 1.20). However, associations did not follow a consistent exposure-response pattern across tertiles. Associations are highly attenuated, but still increased, with the spatial comparison group in the highest tertile exposure group. Cardiac and circulatory defects are strongly and consistently associated with all exposure metrics. SIGNIFICANCE Increased odds of congenital anomalies, particularly cardiac and circulatory defects, were associated with exposures related to oil and gas extraction in this large population-based study. Future research is needed to confirm findings, examine specific exposure pathways, and identify potential avenues to reduce exposures among local populations. IMPACT About 5% of the U.S. population (~17.6 million people) resides within 1.6 km of an active oil or gas extraction site, yet the influence of this industry on population health is not fully understood. In this analysis, we examined associations between oil and gas extraction-related exposures and congenital anomalies by organ site using birth certificate and congenital anomaly surveillance data in Texas (1999-2009). Increased odds of congenital anomalies, particularly cardiac and circulatory defects, were associated with exposures related to oil and gas extraction in this large population-based study. Future research is needed to confirm these findings.
Collapse
Affiliation(s)
- Mary D Willis
- Department of Epidemiology, School of Public Health, Boston University, Boston, MA, USA.
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA.
| | - Susan E Carozza
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Perry Hystad
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| |
Collapse
|
29
|
Shimomura Y, Sobue T, Zha L, Kitamura T, Iwasaki M, Inoue M, Yamaji T, Tsugane S, Sawada N. Association between meat, fish, and fatty acid intake and incidence of acute myeloid leukemia and myelodysplastic syndrome: the Japan Public Health Center-based Prospective Study. Environ Health Prev Med 2023; 28:19. [PMID: 36878605 PMCID: PMC10025862 DOI: 10.1265/ehpm.22-00233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 02/08/2023] [Indexed: 03/08/2023] Open
Abstract
BACKGROUND The association between meat, fish, or fatty acid intake and acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) has been investigated in a few studies, and the results were inconsistent. In addition, most studies are mainly based on the United States and European countries, in which the dietary patterns differ from that in Asia. Therefore, the risk of AML/MDS from meat, fish, or fatty acid intake in Asia requires further exploration. The aim of this study was to investigate the association between AML/MDS incidence and meat, fish, or fatty acid intake using the Japan Public Health Center-based prospective study. METHODS The present study included 93,366 participants who were eligible for analysis and followed up from the 5-year survey date until December 2012. We estimated the impact of their intake on AML/MDS incidence using a Cox proportional hazards model. RESULTS The study participants were followed up for 1,345,002 person-years. During the follow-up period, we identified 67 AML and 49 MDS cases. An increased intake of processed red meat was significantly associated with the incidence of AML/MDS, with a hazard ratio of 1.63 (95% confidence interval, 1.03-2.57) for the highest versus lowest tertile and a Ptrend of 0.04. Meanwhile, the intake of other foods and fatty acids was not associated with AML/MDS. CONCLUSION In this Japanese population, processed red meat was associated with an increased incidence of AML/MDS.
Collapse
Affiliation(s)
- Yoshimitsu Shimomura
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Hematology, Kobe City Hospital Organization Kobe City Medical Center General Hospital, Kobe, Japan
| | - Tomotaka Sobue
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Ling Zha
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tetsuhisa Kitamura
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Motoki Iwasaki
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Manami Inoue
- Division of Prevention, National Cancer Center Institute for Cancer Control, Tokyo, Japan
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Shoichiro Tsugane
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Norie Sawada
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| |
Collapse
|
30
|
Phillips RV, Wei L, Cardenas A, Hubbard AE, McHale CM, Vermeulen R, Wei H, Smith MT, Zhang L, Lan Q, Rothman N. Epigenome-wide association studies of occupational exposure to benzene and formaldehyde. Epigenetics 2022; 17:2259-2277. [PMID: 36017556 PMCID: PMC9665125 DOI: 10.1080/15592294.2022.2115604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 08/04/2022] [Accepted: 08/17/2022] [Indexed: 11/03/2022] Open
Abstract
Sufficient evidence supports a relationship between certain myeloid neoplasms and exposure to benzene or formaldehyde. DNA methylation could underlie benzene- and formaldehyde-induced health outcomes, but data in exposed human populations are limited. We conducted two cross-sectional epigenome-wide association studies (EWAS), one in workers exposed to benzene and another in workers exposed to formaldehyde. Using HumanMethylation450 BeadChips, we investigated differences in blood cell DNA methylation among 50 benzene-exposed subjects and 48 controls, and among 31 formaldehyde-exposed subjects and 40 controls. We performed CpG-level and regional-level analyses. In the benzene EWAS, we found genome-wide significant alterations, i.e., FWER-controlled P-values <0.05, in the mean and variance of methylation at 22 and 318 CpG sites, respectively, and in mean methylation of a large genomic region. Pathway analysis of genes corresponding to benzene-associated differential methylation sites revealed an impact on the AMPK signalling pathway. In formaldehyde-exposed subjects compared to controls, 9 CpGs in the DUSP22 gene promoter had genome-wide significant decreased methylation variability and a large region of the HOXA5 promoter with 44 CpGs was hypomethylated. Our findings suggest that DNA methylation may contribute to the pathogenesis of diseases related to benzene and formaldehyde exposure. Aberrant expression and methylation of HOXA5 previously has been shown to be clinically significant in myeloid leukaemias. The tumour suppressor gene DUSP22 is a potential biomarker of exposure to formaldehyde, and irregularities have been associated with multiple exposures and diseases.
Collapse
Affiliation(s)
- Rachael V. Phillips
- School of Public Health, University of California at Berkeley, Berkeley, CA, USA
| | - Linqing Wei
- School of Public Health, University of California at Berkeley, Berkeley, CA, USA
| | - Andres Cardenas
- School of Public Health, University of California at Berkeley, Berkeley, CA, USA
| | - Alan E. Hubbard
- School of Public Health, University of California at Berkeley, Berkeley, CA, USA
| | - Cliona M. McHale
- School of Public Health, University of California at Berkeley, Berkeley, CA, USA
| | - Roel Vermeulen
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Universiteit Utrecht (UU), Utrecht, The Netherlands
| | - Hu Wei
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, NCI, NIH, DHHS, Bethesda, MD, USA
| | - Martyn T. Smith
- School of Public Health, University of California at Berkeley, Berkeley, CA, USA
| | - Luoping Zhang
- School of Public Health, University of California at Berkeley, Berkeley, CA, USA
| | - Qing Lan
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, NCI, NIH, DHHS, Bethesda, MD, USA
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, NCI, NIH, DHHS, Bethesda, MD, USA
| |
Collapse
|
31
|
Environmental Chemical Exposures and Mitochondrial Dysfunction: a Review of Recent Literature. Curr Environ Health Rep 2022; 9:631-649. [PMID: 35902457 PMCID: PMC9729331 DOI: 10.1007/s40572-022-00371-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW Mitochondria play various roles that are important for cell function and survival; therefore, significant mitochondrial dysfunction may have chronic consequences that extend beyond the cell. Mitochondria are already susceptible to damage, which may be exacerbated by environmental exposures. Therefore, the aim of this review is to summarize the recent literature (2012-2022) looking at the effects of six ubiquitous classes of compounds on mitochondrial dysfunction in human populations. RECENT FINDINGS The literature suggests that there are a number of biomarkers that are commonly used to identify mitochondrial dysfunction, each with certain advantages and limitations. Classes of environmental toxicants such as polycyclic aromatic hydrocarbons, air pollutants, heavy metals, endocrine-disrupting compounds, pesticides, and nanomaterials can damage the mitochondria in varied ways, with changes in mtDNA copy number and measures of oxidative damage the most commonly measured in human populations. Other significant biomarkers include changes in mitochondrial membrane potential, calcium levels, and ATP levels. This review identifies the biomarkers that are commonly used to characterize mitochondrial dysfunction but suggests that emerging mitochondrial biomarkers, such as cell-free mitochondria and blood cardiolipin levels, may provide greater insight into the impacts of exposures on mitochondrial function. This review identifies that the mtDNA copy number and measures of oxidative damage are commonly used to characterize mitochondrial dysfunction, but suggests using novel approaches in addition to well-characterized ones to create standardized protocols. We identified a dearth of studies on mitochondrial dysfunction in human populations exposed to metals, endocrine-disrupting chemicals, pesticides, and nanoparticles as a gap in knowledge that needs attention.
Collapse
|
32
|
Zhang W, Wang J, Liu Z, Zhang L, Jing J, Han L, Gao A. Iron-dependent ferroptosis participated in benzene-induced anemia of inflammation through IRP1-DHODH-ALOX12 axis. Free Radic Biol Med 2022; 193:122-133. [PMID: 36244588 DOI: 10.1016/j.freeradbiomed.2022.10.273] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 10/31/2022]
Abstract
Benzene, a widely existing environmental pollutant, gives huge harm to the hematopoietic system. Iron is one of the raw materials for the creation of blood cells, but the role of iron in the blood toxicity of benzene is still unknown. Here, we examined the role of iron homeostasis in benzene-induced toxicity both in vivo and in vitro. In this study, mice exposed to benzene at 50 ppm for 8 weeks demonstrated the anemia of inflammation, mainly manifested as the decreased serum Fe2+, increased serum ferritin and inflammation factors (TNF-α, IL6, IL1β) in the plasma of mice. Furthermore, we found that iron maldistribution in the spleen and bone marrow is accompanied by inflammation reaction and ferroptosis. In the vitro study, benzene metabolite 1,4-BQ stimulated the obvious ROS production and ferroptosis activation in the normal B lymphocytes cells. Meanwhile, from the molecular perspective, the combined proteomics and transcriptome enriched the ferroptosis pathway, and we further confirmed the increased expression of iron regulator IRP1, ferroptosis-regulator DHODH, and fatty acids metabolism enzyme ALOX12 were the crucial participators in regulating benzene-mediated iron metabolism imbalance and ferroptosis. Particularly, the targeted and un-targeted metabolomics in the vivo and vitro study further emphasized the importance of DHODH in benzene-induced ferroptosis. In conclusion, this study revealed that iron-dependent ferroptosis participated in benzene-induced anemia of inflammation and provided a constructive perspective on targeting ferroptosis for the prevention and control of benzene toxicity.
Collapse
Affiliation(s)
- Wei Zhang
- Department of Occupational and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jingyu Wang
- Department of Occupational and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - ZiYan Liu
- Department of Occupational and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lei Zhang
- Department of Occupational and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jiaru Jing
- Department of Occupational and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lin Han
- Department of Occupational and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Ai Gao
- Department of Occupational and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
| |
Collapse
|
33
|
Sung HJ, Jeong SH, Kang JY, Kim C, Nam YJ, Kim JY, Choi JY, Lee HJ, Lee YS, Kim EY, Baek YW, Lee H, Lee JH. Hematotoxic Effect of Respiratory Exposure to PHMG-p and Its Integrated Genetic Analysis. TOXICS 2022; 10:694. [PMID: 36422902 PMCID: PMC9693004 DOI: 10.3390/toxics10110694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Polyhexamethylene guanidine phosphate (PHMG-p), the main ingredient of humidifier disinfectants, circulates systemically through the lungs; however, its toxicological assessment has been primarily limited to pulmonary disease. Herein, we investigated the possible abnormalities in hematopoietic function 20 weeks after intratracheal instillation of PHMG-p in a rat model. Notable abnormalities were found out in the peripheral blood cell count and bone marrow (BM) biopsy, while RNA sequencing of BM tissue revealed markedly altered gene expression. Furthermore, signaling involved in hematopoietic dysfunction was predicted by analyzing candidate genes through Ingenuity Pathway Analysis (IPA) program. Respiratory PHMG-p exposure significantly decreased monocyte and platelet (PLT) counts and total protein, while significantly increasing hemoglobin and hematocrit levels in peripheral blood. Histopathological analysis of the BM revealed a reduced number of megakaryocytes, with no significant differences in spleen and liver weight to body weight. Moreover, PHMG-p exposure significantly activated estrogen receptor signaling and RHOA signaling, and inhibited RHOGDI signaling. In IPA analysis, candidate genes were found to be strongly related to 'hematological system development and function' and 'hematological disease.' Accordingly, our results suggest that PHMG-p could affect hematopoiesis, which participates in monocyte differentiation and PLT production, and may induce hematologic diseases via the respiratory tract.
Collapse
Affiliation(s)
- Hwa Jung Sung
- Department of Oncology and Hematology, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Sang Hoon Jeong
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Ja Young Kang
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Cherry Kim
- Department of Radiology, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Yoon Jeong Nam
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Jae Young Kim
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Jin Young Choi
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Hye Jin Lee
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Yu Seon Lee
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Eun Yeob Kim
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Yong Wook Baek
- Humidifier Disinfectant Health Center, Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Republic of Korea
| | - Hong Lee
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| | - Ju Han Lee
- Department of Pathology, Ansan Hospital, Korea University College of Medicine, Ansan-si 15355, Gyeonggi, Republic of Korea
| |
Collapse
|
34
|
Bellamri M, Walmsley SJ, Brown C, Brandt K, Konorev D, Day A, Wu CF, Wu MT, Turesky RJ. DNA Damage and Oxidative Stress of Tobacco Smoke Condensate in Human Bladder Epithelial Cells. Chem Res Toxicol 2022; 35:1863-1880. [PMID: 35877975 PMCID: PMC9665352 DOI: 10.1021/acs.chemrestox.2c00153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Smoking is a major risk factor for bladder cancer (BC), with up to 50% of BC cases being attributed to smoking. There are 70 known carcinogens in tobacco smoke; however, the principal chemicals responsible for BC remain uncertain. The aromatic amines 4-aminobiphenyl (4-ABP) and 2-naphthylamine (2-NA) are implicated in BC pathogenesis of smokers on the basis of the elevated BC risk in factory workers exposed to these chemicals. However, 4-ABP and 2-NA only occur at several nanograms per cigarette and may be insufficient to induce BC. In contrast, other genotoxicants, including acrolein, occur at 1000-fold or higher levels in tobacco smoke. There is limited data on the toxicological effects of tobacco smoke in human bladder cells. We have assessed the cytotoxicity, oxidative stress, and DNA damage of tobacco smoke condensate (TSC) in human RT4 bladder cells. TSC was fractionated by liquid-liquid extraction into an acid-neutral fraction (NF), containing polycyclic aromatic hydrocarbons (PAHs), nitro-PAHs, phenols, and aldehydes, and a basic fraction (BF) containing aromatic amines, heterocyclic aromatic amines, and N-nitroso compounds. The TSC and NF induced a time- and concentration-dependent cytotoxicity associated with oxidative stress, lipid peroxide formation, glutathione (GSH) depletion, and apurinic/apyrimidinic (AP) site formation, while the BF showed weak effects. LC/MS-based metabolomic approaches showed that TSC and NF altered GSH biosynthesis pathways and induced more than 40 GSH conjugates. GSH conjugates of several hydroquinones were among the most abundant conjugates. RT4 cell treatment with synthetic hydroquinones and cresol mixtures at levels present in tobacco smoke accounted for most of the TSC-induced cytotoxicity and the AP sites formed. GSH conjugates of acrolein, methyl vinyl ketone, and crotonaldehyde levels also increased owing to TSC-induced oxidative stress. Thus, TSC is a potent toxicant and DNA-damaging agent, inducing deleterious effects in human bladder cells at concentrations of <1% of a cigarette in cell culture media.
Collapse
Affiliation(s)
- Madjda Bellamri
- Masonic Cancer Center, University of Minnesota, MN 55455
- Department of Medicinal Chemistry, University of Minnesota, MN 55455
| | - Scott J. Walmsley
- Masonic Cancer Center, University of Minnesota, MN 55455
- Division of Biostatistics, Institute of Health Informatics, University of Minnesota, MN 55455
| | - Christina Brown
- Masonic Cancer Center, University of Minnesota, MN 55455
- Department of Medicinal Chemistry, University of Minnesota, MN 55455
| | - Kyle Brandt
- Masonic Cancer Center, University of Minnesota, MN 55455
- Department of Medicinal Chemistry, University of Minnesota, MN 55455
| | - Dmitri Konorev
- Masonic Cancer Center, University of Minnesota, MN 55455
- Department of Medicinal Chemistry, University of Minnesota, MN 55455
| | - Abderrahman Day
- Masonic Cancer Center, University of Minnesota, MN 55455
- Department of Medicinal Chemistry, University of Minnesota, MN 55455
| | - Chia-Fang Wu
- Department of Environmental and Occupational Medicine, Kaohsiung Medical University, CS Building, 100 Shih-Chuan 1st Road, Kaohsiung, Taiwan
| | - Ming Tsang Wu
- Department of Environmental and Occupational Medicine, Kaohsiung Medical University, CS Building, 100 Shih-Chuan 1st Road, Kaohsiung, Taiwan
| | - Robert J. Turesky
- Masonic Cancer Center, University of Minnesota, MN 55455
- Department of Medicinal Chemistry, University of Minnesota, MN 55455
| |
Collapse
|
35
|
Mendes MPR, Paiva MJN, Costa-Amaral IC, Carvalho LVB, Figueiredo VO, Gonçalves ES, Larentis AL, André LC. Metabolomic Study of Urine from Workers Exposed to Low Concentrations of Benzene by UHPLC-ESI-QToF-MS Reveals Potential Biomarkers Associated with Oxidative Stress and Genotoxicity. Metabolites 2022; 12:metabo12100978. [PMID: 36295880 PMCID: PMC9611274 DOI: 10.3390/metabo12100978] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/23/2022] Open
Abstract
Benzene is a human carcinogen whose exposure to concentrations below 1 ppm (3.19 mg·m-3) is associated with myelotoxic effects. The determination of biomarkers such as trans-trans muconic acid (AttM) and S-phenylmercapturic acid (SPMA) show exposure without reflecting the toxic effects of benzene. For this reason, in this study, the urinary metabolome of individuals exposed to low concentrations of benzene was investigated, with the aim of understanding the biological response to exposure to this xenobiotic and identifying metabolites correlated with the toxic effects induced by it. Ultra-efficient liquid chromatography coupled to a quadrupole-time-of-flight mass spectrometer (UHPLC-ESI-Q-ToF-MS) was used to identify metabolites in the urine of environmentally (n = 28) and occupationally exposed (n = 32) to benzene (mean of 22.1 μg·m-3 and 31.8 μg·m-3, respectively). Non-targeted metabolomics analysis by PLS-DA revealed nine urinary metabolites discriminating between groups and statistically correlated with oxidative damage (MDA, thiol) and genetic material (chromosomal aberrations) induced by the hydrocarbon. The analysis of metabolic pathways revealed important alterations in lipid metabolism. These results point to the involvement of alterations in lipid metabolism in the mechanisms of cytotoxic and genotoxic action of benzene. Furthermore, this study proves the potential of metabolomics to provide relevant information to understand the biological response to exposure to xenobiotics and identify early effect biomarkers.
Collapse
Affiliation(s)
- Michele P. R. Mendes
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Maria José N. Paiva
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Isabele C. Costa-Amaral
- Center for the Study of Occupational Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (Fiocruz), Rua Leopoldo Bulhões 1480, Manguinhos, Rio de Janeiro 21041-210, RJ, Brazil
| | - Leandro V. B. Carvalho
- Center for the Study of Occupational Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (Fiocruz), Rua Leopoldo Bulhões 1480, Manguinhos, Rio de Janeiro 21041-210, RJ, Brazil
| | - Victor O. Figueiredo
- Center for the Study of Occupational Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (Fiocruz), Rua Leopoldo Bulhões 1480, Manguinhos, Rio de Janeiro 21041-210, RJ, Brazil
| | - Eline S. Gonçalves
- Center for the Study of Occupational Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (Fiocruz), Rua Leopoldo Bulhões 1480, Manguinhos, Rio de Janeiro 21041-210, RJ, Brazil
| | - Ariane L. Larentis
- Center for the Study of Occupational Health and Human Ecology (CESTEH), Sergio Arouca National School of Public Health (ENSP), Oswaldo Cruz Foundation (Fiocruz), Rua Leopoldo Bulhões 1480, Manguinhos, Rio de Janeiro 21041-210, RJ, Brazil
| | - Leiliane C. André
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
- Correspondence: ; Tel.: +55-31-9238-3636
| |
Collapse
|
36
|
Germolec DR, Lebrec H, Anderson SE, Burleson GR, Cardenas A, Corsini E, Elmore SE, Kaplan BL, Lawrence BP, Lehmann GM, Maier CC, McHale CM, Myers LP, Pallardy M, Rooney AA, Zeise L, Zhang L, Smith MT. Consensus on the Key Characteristics of Immunotoxic Agents as a Basis for Hazard Identification. ENVIRONMENTAL HEALTH PERSPECTIVES 2022; 130:105001. [PMID: 36201310 PMCID: PMC9536493 DOI: 10.1289/ehp10800] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 08/09/2022] [Accepted: 08/26/2022] [Indexed: 05/04/2023]
Abstract
BACKGROUND Key characteristics (KCs), properties of agents or exposures that confer potential hazard, have been developed for carcinogens and other toxicant classes. KCs have been used in the systematic assessment of hazards and to identify assay and data gaps that limit screening and risk assessment. Many of the mechanisms through which pharmaceuticals and occupational or environmental agents modulate immune function are well recognized. Thus KCs could be identified for immunoactive substances and applied to improve hazard assessment of immunodulatory agents. OBJECTIVES The goal was to generate a consensus-based synthesis of scientific evidence describing the KCs of agents known to cause immunotoxicity and potential applications, such as assays to measure the KCs. METHODS A committee of 18 experts with diverse specialties identified 10 KCs of immunotoxic agents, namely, 1) covalently binds to proteins to form novel antigens, 2) affects antigen processing and presentation, 3) alters immune cell signaling, 4) alters immune cell proliferation, 5) modifies cellular differentiation, 6) alters immune cell-cell communication, 7) alters effector function of specific cell types, 8) alters immune cell trafficking, 9) alters cell death processes, and 10) breaks down immune tolerance. The group considered how these KCs could influence immune processes and contribute to hypersensitivity, inappropriate enhancement, immunosuppression, or autoimmunity. DISCUSSION KCs can be used to improve efforts to identify agents that cause immunotoxicity via one or more mechanisms, to develop better testing and biomarker approaches to evaluate immunotoxicity, and to enable a more comprehensive and mechanistic understanding of adverse effects of exposures on the immune system. https://doi.org/10.1289/EHP10800.
Collapse
Affiliation(s)
- Dori R. Germolec
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Herve Lebrec
- Translational Safety & Bioanalytical Sciences, Amgen Research, South San Francisco, California, USA
| | - Stacey E. Anderson
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia, USA
| | - Gary R. Burleson
- Burleson Research Technologies, Inc., Morrisville, North Carolina, USA
| | - Andres Cardenas
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, USA
| | - Emanuela Corsini
- Laboratory of Toxicology, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Sarah E. Elmore
- Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, California, USA
| | - Barbara L.F. Kaplan
- Department of Comparative Biomedical Sciences, Center for Environmental Health Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - B. Paige Lawrence
- Department of Environmental Medicine, University of Rochester School of Medicine & Dentistry, Rochester, New York, USA
- Department of Microbiology & Immunology, University of Rochester School of Medicine & Dentistry, Rochester, New York, USA
| | - Geniece M. Lehmann
- Center for Public Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - Curtis C. Maier
- In Vitro In Vivo Translation, Research and Development, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Cliona M. McHale
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, USA
| | - L. Peyton Myers
- Division of Pharm/Tox, Office of Infectious Diseases, Office of New Drugs, Center for Drug Evaluation and Research, U.S. Federal Food and Drug Administration, Silver Spring, Maryland, USA
| | - Marc Pallardy
- Inserm, Inflammation microbiome immunosurveillance, Université Paris-Saclay, Châtenay-Malabry, France
| | - Andrew A. Rooney
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Lauren Zeise
- Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, California, USA
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, USA
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, USA
| |
Collapse
|
37
|
Tabatabaei Z, Hoseini M, Fararooei M, Shamsedini N, Baghapour MA. Biomonitoring of BTEX in primary school children exposed to hookah smoke. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:69008-69021. [PMID: 35554839 PMCID: PMC9100313 DOI: 10.1007/s11356-022-19882-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 03/20/2022] [Indexed: 05/16/2023]
Abstract
Hookah smoking is one of the major indoor sources of benzene, toluene, ethylbenzene, and xylenes (BTEX). This study aimed to investigate the potential exposure to BTEX among primary school children, particularly those exposed to hookah smoke. This cross-sectional study was conducted in Khesht, one of the southwestern cities in Iran, in mid-June 2020. Totally, 50 primary school children exposed to hookah smoke were chosen as the case group and 50 primary school children were selected as the control group. Urinary un-metabolized BTEX was measured by a headspace gas chromatography mass spectrometry (GC-MS). Additionally, a detailed questionnaire was used to gather data and information from the students' parents. The mean levels of urinary benzene, toluene, ethylbenzene, m,p-xylene, and o-xylene were 1.44, 5.87, 2.49, 6.93, and 7.17 μg/L, respectively in the exposed children. Urinary BTEX was 3.93-folds higher in the case group than in the controls (p<0.05). Household cleaning products, the floor on which the house was located, children's sleeping place, and playing outdoors were found to be important factors in predicting urinary BTEX levels. Overall, it was found necessary to avoid indoor smoking to prevent the emission of BTEX compounds via exhaled mainstream smoke and to protect vulnerable non-smokers, especially children, from exposure to second-hand and third-hand smoke.
Collapse
Affiliation(s)
- Zeynab Tabatabaei
- Department of Environment Health Engineering, School of Health, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Hoseini
- Research Center for Health Sciences, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Fararooei
- Research Center for Health Sciences, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narges Shamsedini
- Department of Environment Health Engineering, School of Health, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Fars Water and Wastewater Company, Shiraz, Iran
| | - Mohammad Ali Baghapour
- Research Center for Health Sciences, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
38
|
Regional and national burden of leukemia and its attributable burden to risk factors in 21 countries and territories of North Africa and Middle East, 1990-2019: results from the GBD study 2019. J Cancer Res Clin Oncol 2022:10.1007/s00432-022-04293-7. [PMID: 36048271 DOI: 10.1007/s00432-022-04293-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/14/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE Regional and national data on leukemia's burden provide a better comprehension of leukemia's trends and are vital for policy-makers for better allocation of the resources. This study reports the burden of leukemia, and the attributed burden to its risk factors in 21 countries and territories of the North Africa and Middle East. METHODS Data from cancer registration, scientific literature, survey, and reports were the input to estimate the burden of leukemia. In addition, the burden of attributable risk factors with evidence of causation with leukemia was calculated using the comparative risk assessment framework. All measures are reported as counts and rates divided by sex and specific age groups. RESULTS In 2019, there were 39,297 (95% uncertainty interval: 32,617-45,056) incident cases of leukemia with an age-standardized rate (ASR) of 7.8 (6.5-8.8) per 100,000 in the region. There were also 25,143 (21,109-28,826) deaths and 1,011,555 (822,537-1,173,621) DALYs attributed to Leukemia with an ASR of 5.4 (4.6-6.1) per 100,000 and 183.4 (150.7-211.2) per 100,000, respectively. Years of life lost (YLLs) (179.4 [147.2-206.7]) were accountable for the major part of DALYs. All count measures increased, while all the ASRs decreased during 1990-2019. The Syrian Arab Republic, Qatar, and Afghanistan had the highest ASR incidence, mortality, and DALYs rate in 2019. Incidence, DALYs, and prevalence rates were higher in males of all age groups except under five, and the highest rates were observed in +75 age group. Four major risk factors for leukemia were smoking, high body mass index, occupational exposure to benzene, and formaldehyde. CONCLUSION Despite the reduction in age-standardized rates of incidence and mortality, the burden of leukemia has increased steadily, due to population growth and aging. Notable variations exist between age-standardized rates in region's countries.
Collapse
|
39
|
Zhang Z, Liu X, Guo C, Zhang X, Zhang Y, Deng N, Lai G, Yang A, Huang Y, Dang S, Zhu Y, Xing X, Xiao Y, Deng Q. Hematological Effects and Benchmark Doses of Long-Term Co-Exposure to Benzene, Toluene, and Xylenes in a Follow-Up Study on Petrochemical Workers. TOXICS 2022; 10:502. [PMID: 36136467 PMCID: PMC9501893 DOI: 10.3390/toxics10090502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
Benzene, toluene, and xylenes (BTX) commonly co-exist. Exposure to individual components and BTX-rich mixtures can induce hematological effects. However, the hematological effects of long-term exposure to BTX are still unclear, and respective reference levels based on empirical evidence should be developed. We conducted a follow-up study in BTX-exposed petrochemical workers. Long-term exposure levels were quantified by measuring cumulative exposure (CE). Generalized weighted quantile sum (WQS) regression models and Benchmark Dose (BMD) Software were used to evaluate their combined effects and calculate their BMDs, respectively. Many hematologic parameters were significantly decreased at the four-year follow-up (p < 0.05). We found positive associations of CE levels of benzene, toluene, and xylene with the decline in monocyte counts, lymphocyte counts, and hematocrit, respectively (β > 0.010, Ptrend < 0.05). These associations were stronger in subjects with higher baseline parameters, males, drinkers, or overweight subjects (Pinteraction < 0.05). BTX had positive combined effects on the decline in monocyte counts, red-blood-cell counts, and hemoglobin concentrations (Ptrend for WQS indices < 0.05). The estimated BMDs for CE levels of benzene, toluene, and xylene were 2.138, 1.449, and 2.937 mg/m3 × year, respectively. Our study demonstrated the hematological effects of long-term BTX co-exposure and developed 8h-RELs of about 0.01 ppm based on their hematological effects.
Collapse
Affiliation(s)
- Zhaorui Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xin Liu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Chaofan Guo
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xinjie Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yingying Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Na Deng
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Guanchao Lai
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China
| | - Aichu Yang
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China
| | - Yongshun Huang
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China
| | - Shanfeng Dang
- Occupational Disease Prevention and Treatment Institute of Sinopec Maoming Petrochemical Company, Maoming 525000, China
| | - Yanqun Zhu
- Occupational Disease Prevention and Treatment Institute of Sinopec Maoming Petrochemical Company, Maoming 525000, China
| | - Xiumei Xing
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yongmei Xiao
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qifei Deng
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| |
Collapse
|
40
|
Biological Assessment of Potential Exposure to Occupational Substances in Current Semiconductor Workers with at Least 5 Years of Employment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148737. [PMID: 35886589 PMCID: PMC9318163 DOI: 10.3390/ijerph19148737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/15/2022] [Accepted: 07/16/2022] [Indexed: 12/10/2022]
Abstract
Background: this study aimed to conduct a biological assessment of the potential exposure to carcinogenic substances in current semiconductor workers. Methods: A cross-sectional study was conducted on 306 semiconductor workers. The assessed biomarkers were as follows: (benzene) urine S-phenylmercapturic, trans,trans-muconic acid, blood benzene; (trichloroethylene) urine trichloroacetic acid; (2-ethoxyethanol) 2-ethoxyacetic acid; (arsine) urine arsenic3+, arsenic5+, monomethylarsonic, dimethylarsinic acid, arsenobetaine; (shift work) 6-hydroxymelatonin; (smoking) cotinine, and (radiation). The detection rate of these materials is defined as more than the biological exposure index (BEI) or the previous reference value. Results: Some workers exposed to trans,trans-muconic acid, trichloroacetic acid, and arsenic5+ showed high BEI levels. Generally, there was no difference according to job categories, and workers were suspected to be exposed to other sources. The melatonin concentration tended to decrease when working at night, and cotinine was identified as an excellent surrogate marker for smoking. In the case of radiation exposure, there was no significant difference in the number of stable chromosome translocation in 19 semiconductor workers. Their estimated radiation exposure level was below the limit of detection (LOD) or near the LOD level. Conclusion: In this study, most carcinogens were below the BEI level, but verification through re-measurement was needed for workers who were identified to have a high BEI level. For continuous monitoring, a prospective cohort is necessary to deal with the healthy worker effect and assess additional materials.
Collapse
|
41
|
Environmental exposures and lymphoma risk: a nested case-control study using the Golden Retriever Lifetime Study cohort. Canine Med Genet 2022; 9:10. [PMID: 35841115 PMCID: PMC9287967 DOI: 10.1186/s40575-022-00122-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/30/2022] [Indexed: 12/02/2022] Open
Abstract
Lymphoma is the second most common cancer affecting Golden Retrievers and is hypothesized to arise through a complex interaction of genetic and environmental factors. The aim of this nested case–control study was to investigate the association between potential environmental pollutant sources and lymphoma risk among Golden Retrievers participating in the Golden Retriever Lifetime Study. Forty-nine Golden Retrievers with non-cutaneous lymphoma and 98 Golden Retrievers without a history of cancer matched by age, sex and neuter status were selected from the Golden Retriever Lifetime Study cohort. Geographic proximity between each dog’s primary residence and nine potential sources of environmental pollution was determined. In addition, the average annual ozone and airborne fine particulate matter levels for each dog’s county of residence and owner-reported secondhand smoke exposure were evaluated. Environmental pollution sources of interest included chemical plants, municipal dumps, manufacturing plants, incineration plants, railroad embankment tracks, landfills, coal plants, high-voltage transmission lines, and nuclear power plants. Conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for each exposure of interest. Subgroup analyses were conducted to evaluate whether associations differed among 1) dogs with multicentric lymphoma, 2) dogs with B-cell lymphoma, and 3) dogs with T-cell lymphoma. No variables reached statistical significance when evaluating all cases together. However, cumulative exposure burden (household proximity to 3 or more pollution sources) approached significance within the multicentric lymphoma subgroup (OR = 2.60, 95%CI 0.99–6.86, p-value = 0.053). Patterns emerged among B- and T-cell subgroups, but none reached statistical significance. Ongoing research is warranted to discern if different environmental mechanisms may be driving B- and T-cell lymphoma immunophenotypes, consistent with previously reported regional differences in subtype prevalence. Lymphoma is a common cancer affecting dogs, particularly Golden Retrievers. By identifying risk factors for lymphoma, work can be done to reduce harmful exposures or increase monitoring among dogs at a higher risk of disease. Using a subset of dogs from the Golden Retriever Lifetime Study, we sought to investigate whether dogs with lymphoma were more likely to live near certain environmental pollutant sources than dogs without lymphoma. Forty-nine Golden Retrievers with non-cutaneous lymphoma and 98 Golden Retrievers without a history of cancer were selected from the Golden Retriever Lifetime Study Cohort. We evaluated how close each dog lived to nine environmental pollutant sources: chemical plants, municipal dumps, manufacturing plants, incineration plants, railroad embankment tracks, landfills, coal plants, high-voltage transmission lines, and nuclear power plants. Additionally, we evaluated individual exposure to secondhand smoke, and average annual ozone and particulate matter exposure (as surrogate measures for air pollution) for each dog’s county of residence. None of the exposures examined were associated with an increased lymphoma risk in this population. More research is needed, including direct biomonitoring, to determine whether specific environmental exposures are associated with lymphoma in the Golden Retriever breed.
Collapse
|
42
|
D'Souza LC, Dwivedi S, Raihan F, Yathisha UG, Raghu SV, Mamatha BS, Sharma A. Hsp70 overexpression in Drosophila hemocytes attenuates benzene-induced immune and developmental toxicity via regulating ROS/JNK signaling pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:1723-1739. [PMID: 35301792 DOI: 10.1002/tox.23520] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/07/2021] [Accepted: 03/06/2022] [Indexed: 06/14/2023]
Abstract
Benzene, a ubiquitous environmental chemical, is known to cause immune dysfunction and developmental defects. This study aims to investigate the relation between benzene-induced immune dysfunction and developmental toxicity in a genetically tractable animal model, Drosophila melanogaster. Further, the study explored the protective role of Heat Shock Protein 70 (Hsp70) against benzene-induced immunotoxicity and subsequent developmental impact. Drosophila larvae exposed to benzene (1.0, 10.0, and 100.0 mM) were examined for total hemocyte (immune cells) count, phagocytic activity, oxidative stress, apoptosis, and their developmental delay and reduction were analyzed. Benzene exposure for 48 h reduced the total hemocytes count and phagocytic activity, along with an increase in the Reactive Oxygen Species (ROS), and lipid peroxidation in the larval hemocytes. Subsequently, JNK-dependent activation of the apoptosis (Caspase-3 dependent) was also observed. During their development, benzene exposure to Drosophila larvae led to 3 days of delay in development, and ~40% reduced adult emergence. Hsp70-overexpression in hemocytes was found to mitigate benzene-induced oxidative stress and abrogated the JNK-mediated apoptosis in hemocytes, thus restoring total hemocyte count and improving phagocytotic activity. Further, hsp70-overexpression in hemocytes also lessened the benzene-induced developmental delay (rescue of 2.5 days) and improved adult emergence (~20%) emergence, revealing a possible control of immune cells on the organism's development and survival. Overall, this study established that hsp70-overexpression in the Drosophila hemocytes confers protection against benzene-induced immune injury via regulating the ROS/JNK signaling pathway, which helps in the organism's survival and development.
Collapse
Affiliation(s)
- Leonard Clinton D'Souza
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Shiwangi Dwivedi
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Faiza Raihan
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Undiganalu Gangadharappa Yathisha
- Division of Food Safety and Nutrition, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | | | - Bangera Sheshappa Mamatha
- Division of Food Safety and Nutrition, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| | - Anurag Sharma
- Division of Environmental Health and Toxicology, Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangaluru, India
| |
Collapse
|
43
|
Chiou JT, Lee YC, Wang LJ, Chang LS. BCL2 inhibitor ABT-199 and BCL2L1 inhibitor WEHI-539 coordinately promote NOXA-mediated degradation of MCL1 in human leukemia cells. Chem Biol Interact 2022; 361:109978. [PMID: 35561756 DOI: 10.1016/j.cbi.2022.109978] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/05/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023]
Abstract
Human leukemia U937 cells that were continuously treated with hydroquinone (HQ) were transformed into U937/HQ cells with increased MCL1 and BCL2L1 expression. Compared with their parental cells, U937/HQ cells were less sensitive to ABT-263 (BCL2/BCL2L1 inhibitor)/ABT-199 (BCL2 inhibitor) cytotoxicity. The combination of WEHI-539 (BCL2L1 inhibitor) with either ABT-199 or ABT-263 showed synergistic cytotoxicity to U937 and U937/HQ cells. Therefore, we further investigated the cytotoxic mechanism induced by the combination of WEHI-539 and ABT-199. The combined treatment of WEHI-539 and ABT-199 induced NOX4/ROS/p38 MAPK axis-mediated autophagy, which in turn accelerated β-TrCP mRNA turnover. Downregulation of β-TrCP increased Sp1 expression, thereby promoting Sp1-mediated NOXA transcription, which in turn induced NOXA-dependent MCL1 degradation. Enforced expression of MCL1 alleviated the cytotoxicity of WEHI-539 plus ABT-199 to induce the loss of mitochondrial membrane potential and cell viability. WEHI-539 alone induced Sp1/NOXA axis-mediated MCL1 downregulation, while ABT-199 significantly decreased the dose of WEHI-539 by approximately 350- and 50-fold to induce MCL1 suppression in parental and HQ-selected cells, respectively. Furthermore, WEHI-539 sensitized ABT-199-resistant U937 cells to ABT-199 cytotoxicity by inducing NOXA-mediated degradation of MCL1. Collectively, the data in this study indicate that ABT-199 and WEHI-539 cooperatively induce NOXA-dependent MCL1 degradation, and the inhibition of MCL1 mainly explains their combined cytotoxicity in parental, HQ-selected, and ABT-199-resistant U937 cells.
Collapse
Affiliation(s)
- Jing-Ting Chiou
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Yuan-Chin Lee
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Liang-Jun Wang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan; Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| |
Collapse
|
44
|
Ferroptosis is involved in the benzene-induced hematotoxicity in mice via iron metabolism, oxidative stress and NRF2 signaling pathway. Chem Biol Interact 2022; 362:110004. [DOI: 10.1016/j.cbi.2022.110004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 05/16/2022] [Accepted: 05/30/2022] [Indexed: 12/27/2022]
|
45
|
Buonaurio F, Borra F, Pigini D, Paci E, Spagnoli M, Astolfi ML, Giampaoli O, Sciubba F, Miccheli A, Canepari S, Ancona C, Tranfo G. Biomonitoring of Exposure to Urban Pollutants and Oxidative Stress during the COVID-19 Lockdown in Rome Residents. TOXICS 2022; 10:toxics10050267. [PMID: 35622680 PMCID: PMC9143243 DOI: 10.3390/toxics10050267] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 02/01/2023]
Abstract
Background: The objective of this study is to evaluate the effects of traffic on human health comparing biomonitoring data measured during the COVID-19 lockdown, when restrictions led to a 40% reduction in airborne benzene in Rome and a 36% reduction in road traffic, to the same parameters measured in 2021. Methods: Biomonitoring was performed on 49 volunteers, determining the urinary metabolites of the most abundant traffic pollutants, such as benzene and PAHs, and oxidative stress biomarkers by HPLC/MS-MS, 28 elements by ICP/MS and metabolic phenotypes by NMR. Results: Means of s-phenylmercaputric acid (SPMA), metabolites of naphthalene and nitropyrene in 2020 are 20% lower than in 2021, while 1-OH-pyrene was 30% lower. A reduction of 40% for 8-oxo-7,8-dihydroguanosine (8-oxoGuo) and 8-oxo-7,8-dihydro-2-deoxyguanosine (8-oxodGuo) and 60% for 8-oxo-7,8-dihydroguanine (8-oxoGua) were found in 2020 compared to 2021. The concentrations of B, Co, Cu and Sb in 2021 are significantly higher than in the 2020. NMR untargeted metabolomic analysis identified 35 urinary metabolites. Results show in 2021 a decrease in succinic acid, a product of the Krebs cycle promoting inflammation. Conclusions: Urban pollution due to traffic is partly responsible for oxidative stress of nucleic acids, but other factors also have a role, enhancing the importance of communication about a healthy lifestyle in the prevention of cancer diseases.
Collapse
Affiliation(s)
- Flavia Buonaurio
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy; (F.B.); (F.B.); (M.L.A.)
| | - Francesca Borra
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy; (F.B.); (F.B.); (M.L.A.)
| | - Daniela Pigini
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Monte Porzio Catone, 00144 Rome, Italy; (D.P.); (E.P.); (M.S.)
| | - Enrico Paci
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Monte Porzio Catone, 00144 Rome, Italy; (D.P.); (E.P.); (M.S.)
| | - Mariangela Spagnoli
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Monte Porzio Catone, 00144 Rome, Italy; (D.P.); (E.P.); (M.S.)
| | - Maria Luisa Astolfi
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy; (F.B.); (F.B.); (M.L.A.)
| | - Ottavia Giampaoli
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (O.G.); (F.S.); (A.M.); (S.C.)
- NMR-Based Metabolomics Laboratory (NMLab), Sapienza University of Rome, 00185 Rome, Italy
| | - Fabio Sciubba
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (O.G.); (F.S.); (A.M.); (S.C.)
- NMR-Based Metabolomics Laboratory (NMLab), Sapienza University of Rome, 00185 Rome, Italy
| | - Alfredo Miccheli
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (O.G.); (F.S.); (A.M.); (S.C.)
- NMR-Based Metabolomics Laboratory (NMLab), Sapienza University of Rome, 00185 Rome, Italy
| | - Silvia Canepari
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (O.G.); (F.S.); (A.M.); (S.C.)
| | - Carla Ancona
- Department of Epidemiology, Lazio Regional Health Service, 00154 Rome, Italy;
| | - Giovanna Tranfo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Monte Porzio Catone, 00144 Rome, Italy; (D.P.); (E.P.); (M.S.)
- Correspondence: ; Tel.: +39-0694181436
| |
Collapse
|
46
|
Caron-Beaudoin É, Ayotte P, Aker A, Blanchette C, Ricard S, Gilbert V, Avard E, Lemire M. Exposure to benzene, toluene and polycyclic aromatic hydrocarbons in Nunavimmiut aged 16 years and over (Nunavik, Canada) - Qanuilirpitaa 2017 survey. ENVIRONMENTAL RESEARCH 2022; 206:112586. [PMID: 34932977 DOI: 10.1016/j.envres.2021.112586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
There are numerous volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs) that Inuit may be exposed to from combustion, cooking, heating, vehicle exhaust, active and passive smoking and other local sources of contaminants such as oil spills or open-air burning in landfills. To better assess the levels of exposure to these non-persistent chemicals, we measured a suite of benzene, toluene (two VOCs) and PAHs metabolites in pooled urine samples from youth and adults aged 16 years old and over who participated in the Qanuilirpitaa? 2017 Inuit Health Survey (Q2017), a population health survey conducted in Nunavik. A cost-effective pooling strategy was established and 30 different pools from individual urine samples (n = 1266) were created by grouping individual urine samples by sex, age groups and regions. To assess smoking and exposure to second-hand smoke, cotinine levels were measured in individual urine samples. We found that benzene, toluene, all detected PAHs metabolites and cotinine levels were significantly higher in Q2017 compared to adults in the Canadian Health Measure Survey Cycle 4 (2014-2015) or the general U.S population (2015-2016). Moreover, mean levels of one benzene metabolite, S-phenylmercapturic acid, and several PAHs metabolites, 1-naphthol, 2-and 3-hydroxyfluorene, and 4- and 9-hydroxyphenanthrene, known to be associated with smoking habits, were higher in Q2017 compared to reference values (RV95) established for non-smokers in the general Canadian population. Furthermore, benzene and PAHs metabolites were all correlated with cotinine levels. Our results suggest that the high smoking prevalence in Nunavik is an important contributor to the elevated benzene and PAHs exposure. Other local sources may add to that exposure, although we were not able to account for their contribution. These data highlight the importance of regional and community efforts for reducing smoking and to encourage smoke-free homes in Nunavik, while continuing to investigate and reduce other possible local sources of exposure to benzene, toluene and PAHs.
Collapse
Affiliation(s)
- Élyse Caron-Beaudoin
- Department of Health and Society, Department of Physical and Environmental Sciences, University of Toronto Scarborough, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Ontario, Canada; Centre for Clinical Epidemiology and Evaluation, University of British Columbia, British Columbia, Canada.
| | - Pierre Ayotte
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada; Centre de toxicologie du Québec, Institut national de santé Publique du Québec, Québec, QC, Canada; Département de médecine sociale et préventive, Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada
| | - Amira Aker
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada; Département de médecine sociale et préventive, Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada
| | - Caty Blanchette
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada
| | - Sylvie Ricard
- Nunavik Regional Board of Health and Social Services, Kuujjuaq, QC, Canada
| | | | - Ellen Avard
- Nunavik Research Centre, Makivik Corporation, Kuujjuaq, QC, Canada
| | - Mélanie Lemire
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada; Département de médecine sociale et préventive, Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada; Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada.
| |
Collapse
|
47
|
Tolosa Rodríguez MA, Rojas Becerra MDR, Vaca Alvarado LJ, Piñeros Aranguren AS. Actividades económicas, laborales, ambientales y aditivas con exposición a benceno y el desarrollo de leucemia mieloide aguda. REPERTORIO DE MEDICINA Y CIRUGÍA 2022. [DOI: 10.31260/repertmedcir.01217372.1059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Introducción: el benceno es un hidrocarburo aromático obtenido por destilación del alquitrán utilizado en gasolineras y como solvente industrial, clasificado como cancerígeno por exposición ocupacional o ambiental. Está relacionado con el desarrollo de leucemia mieloide aguda (LMA) por su absorción principal por vía inhalatoria, y su metabolismo hepático con producción de benzoquinona de alta liposolubilidad que le permite depositarse en la médula ósea y tejido graso. Objetivo: analizar la asociación de las formas de exposición por actividades económicas, oficios, cargos, exposición ambiental y aditiva con el desarrollo de LMA. Materiales y métodos: revisión sistemática de la literatura en las bases de datos Medline, Embase, Lilacs, Cochrane Library, Toxnet y OpenGrey, en inglés y español con los términos benzene, cancer, leukemia, occupational and enviromental exposition. Resultados: la mayoría de los estudios muestran una relación causal entre la exposición a benceno y el desarrollo de LMA, con predominio en ambientes laborales, seguidos de factores ambientales y aditivos como el humo del cigarrillo. Conclusiones: se encontró evidencia de asociación entre la exposición a benceno ocupacional y/o ambiental con el desarrollo de leucemia mieloide aguda, debido a que altera el estrés oxidativo y la desregulación del aryl hidrocarburo generando efectos citogenéticos, mutación genética y alteraciones epigenéticas que se expresan en hematotoxicidad y desarrollo de leucemia.
Collapse
|
48
|
Jafari Roshan S, Mansoori Y, Hosseini SR, Sabour D, Daraei A. Genetic variations in ATM and H2AX loci contribute to risk of hematological abnormalities in individuals exposed to BTEX chemicals. J Clin Lab Anal 2022; 36:e24321. [PMID: 35235704 PMCID: PMC8993635 DOI: 10.1002/jcla.24321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 02/17/2022] [Accepted: 02/19/2022] [Indexed: 11/20/2022] Open
Abstract
Background Loci controlling DNA double‐strand breaks (DSBs) repair play an important role in defending against the harmful health effects of benzene, toluene, ethylbenzene, and xylene (BTEX), but their gene variants may alter their repair capacity. The aim of the current study was to determine the relationship of functional polymorphisms ATM‐rs228589 A>T, WRN‐rs1800392 G>T and H2AX‐rs7759 A>G in DBS repair loci with the abnormal hematological indices in workers who exposed to BTEXs. Methods We included 141 cases with one or more abnormal hematological parameters, who had been occupationally exposed to BTEX chemicals and 152 controls with a similar exposure condition but without any abnormal hematological parameters. Atmospheric concentrations of BTEXs were measured and whole blood samples were taken from the participants to determine hematologic parameters and SNP genotyping. Results Results showed that T allele of ATM‐rs228589 and G allele of H2AX‐rs7759 had a higher frequency in cases than controls (p = 0.012 and p = 0.001, respectively). Also, AT and TT genotypes of ATM‐rs228589 and AG and GG genotypes of H2AX‐rs7759 were higher in cases compared to controls. The AT and TT genotypes of ATM‐rs228589 have significant associations with a risk of hematological abnormalities in the codominant (AT vs. AA, p = 0.018), dominant (AT + TT vs. AA, p = 0.010) and overdominant (AT vs. AA + TT, p = 0.037) models. The GG and AG genotypes of H2AX‐rs7759 were in relation with increased risk of abnormal hematological indices under codominant (GA vs. AA, p = 0.009 & GG vs. AA, p = 0.005), dominant (AG + GG vs. AA, p = 0.001), and recessive (GG vs. AA + AG, p = 0.025) models. Conclusions These observations may help to understand the mechanisms of BTEX hematotoxicity and identify useful biomarkers of risk assessment for workers exposed to BTEX.
Collapse
Affiliation(s)
- Samaneh Jafari Roshan
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran.,Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Yaser Mansoori
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Seyed Reza Hosseini
- Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Davood Sabour
- Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Abdolreza Daraei
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| |
Collapse
|
49
|
Hydroquinone destabilizes BIM mRNA through upregulation of p62 in chronic myeloid leukemia cells. Biochem Pharmacol 2022; 199:115017. [DOI: 10.1016/j.bcp.2022.115017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/19/2022] [Accepted: 03/21/2022] [Indexed: 11/21/2022]
|
50
|
Sun R, Yu L, Xu K, Pu Y, Huang J, Liu M, Zhang J, Yin L, Pu Y. Evi1 involved in benzene-induced haematotoxicity via modulation of PI3K/mTOR pathway and negative regulation Serpinb2. Chem Biol Interact 2022; 354:109836. [PMID: 35092719 DOI: 10.1016/j.cbi.2022.109836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/08/2022] [Accepted: 01/24/2022] [Indexed: 12/11/2022]
Abstract
Benzene is a widely used chemical and an environmental pollutant. Exposure to benzene can cause blood diseases, but the mechanisms underlying benzene haematotoxicity have not been fully clarified. Ecotropic virus integration site-1 (Evi1), a transcription factor, plays important roles in normal haematopoiesis and haematological diseases. In this study, we investigated the role and mechanism of Evi1 in benzene-induced haematotoxicity. We found that benzene exposure significantly increased Evi1 level in white blood cells (WBCs) in occupational benzene workers as well as mouse bone marrow cells. Further in vitro results demonstrated that compared with control cells exposed to same 1,4-benzoquinone (1,4-BQ, an important active metabolite of benzene) concentration, Evi1 downregulation significantly reduced cell proliferation, and disrupted cell viability, apoptosis, erythroid and megakaryotic cell differentiation and cell cycle. Additionally, down-regulation of Evi1 suppressed phosphoinositide 3-kinase (PI3K)/mTOR signalling pathway and elevated its target gene Serpinb2 following 1,4-BQ exposure. Moreover, the PI3K activator could partially relieve the inhibitory effect of down-regulation of Evi1 on cell proliferation and increase cell arrest in in G2/M phase. What's more, downregulation of Serpinb2 could partially alleviate proliferation inhibition and reverse cell cycle changes in G0/G1 phase and S phase induced by Evi1 inhibition. In conclusion, our data revealed that Evi1 downregulation aggravated the inhibition of cell proliferation and arrested cells in the G0/G1 phase when exposed to 1,4-BQ, potentially by inactivating the PI3K/mTOR pathway and upregulating downstream target gene Serpinb2. Our study provides novel insights on mechanism by which Evi1 participates in benzene-induced haematotoxicity.
Collapse
Affiliation(s)
- Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China.
| | - Linling Yu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Kai Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Yunqiu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Jiawei Huang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Manman Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Juan Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China.
| |
Collapse
|