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Panizzolo M, Barbero F, Ghelli F, Garzaro G, Bellisario V, Guseva Canu I, Fenoglio I, Bergamaschi E, Bono R. Assessing the inhaled dose of nanomaterials by nanoparticle tracking analysis (NTA) of exhaled breath condensate (EBC) and its relationship with lung inflammatory biomarkers. CHEMOSPHERE 2024; 358:142139. [PMID: 38688349 DOI: 10.1016/j.chemosphere.2024.142139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/26/2024] [Accepted: 04/23/2024] [Indexed: 05/02/2024]
Abstract
The widespread and increasing use of nanomaterials has resulted in a higher likelihood of exposure by inhalation for nanotechnology workers. However, tracking the internal dose of nanoparticles deposited at the airways level, is still challenging. To assess the suitability of particle number concentration determination as biomarker of internal dose, we carried out a cross sectional investigation involving 80 workers handling nanomaterials. External exposure was characterized by portable counters of particles DISCminiTM (Testo, DE), allowing to categorize 51 workers as exposed and 29 as non-exposed (NE) to nanoparticles. Each subject filled in a questionnaire reporting working practices and health status. Exhaled breath condensate was collected and analysed for the number of particles/ml as well as for inflammatory biomarkers. A clear-cut relationship between the number of airborne particles in the nano-size range determined by the particle counters and the particle concentration in exhaled breath condensate (EBC) was apparent. Moreover, inflammatory cytokines (IL-1β, IL-10, and TNF-α) measured in EBC, were significantly higher in the exposed subjects as compared to not exposed. Finally, significant correlations were found between external exposure, the number concentration of particles measured by the nanoparticle tracking analysis (NTA) and inflammatory cytokines. As a whole, the present study, suggests that NTA can be regarded as a reliable tool to assess the inhaled dose of particles and that this dose can effectively elicit inflammatory effects.
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Affiliation(s)
- Marco Panizzolo
- Department of Public Health and Pediatrics. University of Torino, Italy
| | | | - Federica Ghelli
- Department of Public Health and Pediatrics. University of Torino, Italy.
| | - Giacomo Garzaro
- Department of Public Health and Pediatrics. University of Torino, Italy
| | | | - Irina Guseva Canu
- Department of Occupational and Environmental Health, UniSanté, Lausanne, Switzerland
| | | | | | - Roberto Bono
- Department of Public Health and Pediatrics. University of Torino, Italy
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Li X, Ding D, Xie W, Zhang Y, Kong L, Li M, Li M, Deng S. Risk assessment and source analysis of heavy metals in soil around an asbestos mine in an arid plateau region, China. Sci Rep 2024; 14:7552. [PMID: 38555404 PMCID: PMC10981712 DOI: 10.1038/s41598-024-58117-4] [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: 12/07/2023] [Accepted: 03/25/2024] [Indexed: 04/02/2024] Open
Abstract
Asbestos is widely used in construction, manufacturing, and other common industrial fields. Human activities such as mining, processing, and transportation can release heavy metals from asbestos into the surrounding soil environment, posing a health hazard to the mining area's environment and its surrounding residents. The purpose of the present study was to determine the extent of ecological and human health damage caused by asbestos pollution, as well as the primary contributors to the contamination, by examining a large asbestos mine and the surrounding soil in China. The level of heavy metal pollution in soil and sources were analyzed using methods such as the geo-accumulation index (Igeo), potential ecological risk index (RI), and positive matrix factorization (PMF) model. A Monte Carlo simulation-based health risk model was employed to assess the health risks of heavy metals in the study area's soil to human beings. The results showed that the concentrations of As, Pb, Cr, Cu, and Ni in the soil were 1.74, 0.13, 13.31, 0.33, and 33.37 times higher than the local soil background values, respectively. The Igeo assessment indicated significant accumulation effects for Ni, Cr, and As. The RI evaluation revealed extremely high comprehensive ecological risks (RI ≥ 444) in the vicinity of the waste residue heap and beneficiation area, with Ni exhibiting strong individual potential ecological risk (Eir ≥ 320). The soil health risk assessment demonstrated that As and Cr posed carcinogenic risks to adults, with mean carcinogenic indices (CR) of 1.56E - 05 and 4.14E - 06, respectively. As, Cr, and Cd posed carcinogenic risks to children, with mean CRs of 1.08E - 04, 1.61E - 05, and 2.68E - 06, respectively. Cr also posed certain non-carcinogenic risks to both adults and children. The PMF model identified asbestos contamination as the primary source of heavy metals in the soil surrounding the asbestos mining area, contributing to 79.0%. According to this study, it is recommended that management exercise oversight and regulation over the concentrations of Ni, Cr, Cd, and As in the soil adjacent to asbestos mines, establish a designated control zone to restrict population activities, and locate residential zones at a safe distance from the asbestos mine production zone.
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Affiliation(s)
- Xuwei Li
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China
| | - Da Ding
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China
| | - Wenyi Xie
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China
| | - Ya Zhang
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China
| | - Lingya Kong
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China
| | - Ming Li
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China
| | - Mei Li
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China
| | - Shaopo Deng
- Ministry of Ecology and Environment of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China.
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing, 210042, China.
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Sanyal T, Das A, Bhattacharjee S, Gump BB, Bendinskas K, Bhattacharjee P. Targeting the 'DNA methylation mark': Analysis of early epigenetic-alterations in children chronically exposed to arsenic. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169049. [PMID: 38052388 DOI: 10.1016/j.scitotenv.2023.169049] [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: 07/25/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/07/2023]
Abstract
Chronic exposure to arsenic causes adverse health effects in children. Aberrant epigenetic modifications including altered DNA methylation pattern are one of the major steps towards malignant transformation of cells. Our group has previously identified significant alteration in DNA methylation mark in arsenic exposed adults, affecting major biological pathways. Till date, no information is available exploring the altered DNA methylation mark in telomere regulation and altered mitochondrial functionality in association with DNA damage in arsenic-exposed children. Our study aims in identifying signature epigenetic pattern associated with telomere lengthening, mitochondrial functionality and DNA damage repair in children with special emphasis on DNA methylation. Biological samples (blood and urine) and drinking water were collected from the children aged between 5 and 16 years of arsenic exposed areas (N = 52) of Murshidabad district and unexposed areas (N = 50) of East Midnapur districts, West Bengal, India. Methylation-specific PCR was performed to analyse subtelomeric methylation status and promoter methylation status of target genes. Results revealed altered DNA methylation profile in the exposed children compared to unexposed. Promoter hypermethylation was observed in MLH1 and MSH2 (p < 0.05 and p < 0.001) indicating inefficiency in DNA damage repair. Hypomethylation in mitochondrial D-loop (p < 0.05) and TFAM promoter region (p < 0.05) along with increased mitochondrial DNA copy number among exposed children was also observed. Significant increase in telomere length and region specific subtelomeric hypermethylation (XpYp, p < 0.05) was found. Analysis of S-Adenosyl Methionine (SAM) and 8-oxoDG level revealed significant depletion of SAM (p < 0.001) and elevated oxidative DNA damage (p < 0.001) respectively in arsenic toxicity. Our study identified key methylation patterns in arsenic-exposed children which may act as an early predictive biomarker in the near future. Further in-depth studies involving large sample size and transcriptomic analysis are required for understanding the mechanistic details.
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Affiliation(s)
- Tamalika Sanyal
- Department of Zoology, University of Calcutta, Kolkata 700019, India; Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | - Ankita Das
- Department of Zoology, University of Calcutta, Kolkata 700019, India; Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | | | - Brooks B Gump
- Department of Chemistry, State University of New York College at Oswego, Oswego, NY 13126, USA
| | - Kestutis Bendinskas
- Falk College of Sport and Human Dynamics, Department of Public Health, Syracuse University, Syracuse, NY 13244, USA
| | - Pritha Bhattacharjee
- Department of Environmental Science, University of Calcutta, Kolkata 700019, India.
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Yang M, Zeng HX, Wang XF, Hakkarainen H, Leskinen A, Komppula M, Roponen M, Wu QZ, Xu SL, Lin LZ, Liu RQ, Hu LW, Yang BY, Zeng XW, Dong GH, Jalava P. Sources, chemical components, and toxicological responses of size segregated urban air PM samples in high air pollution season in Guangzhou, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 865:161092. [PMID: 36586693 DOI: 10.1016/j.scitotenv.2022.161092] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
The sources, sizes, components, and toxicological responses of particulate matter (PM) have demonstrated remarkable spatiotemporal variability. However, associations between components, sources, and toxicological effects in different-sized PM remain unclear. The purposes of this study were to 1) determine the sources of PM chemical components, 2) investigate the associations between components and toxicology of PM from Guangzhou high air pollution season. We collected size-segregated PM samples (PM10-2.5, PM2.5-1, PM1-0.2, PM0.2) from December 2017 to March 2018 in Guangzhou. PM sources and components were analyzed. RAW264.7 mouse macrophages were treated with PM samples for 24 h followed by measurements of toxicological responses. The concentrations of PM10-2.5 and PM1-0.2 were relatively high in all samples. Water-soluble ions and PAHs were more abundant in smaller-diameter PM, while metallic elements were more enriched in larger-diameter PM. Traffic exhaust, soil dust, and biomass burning/petrochemical were the most important sources of PAHs, metals and ions, respectively. The main contributions to PM were soil dust, coal combustion, and biomass burning/petrochemical. Exposure to PM10-2.5 induced the most significant reduction of cell mitochondrial activity, oxidative stress and inflammatory response, whereas DNA damage, an increase of Sub G1/G0 population, and impaired cell membrane integrity were most evident with PM1-0.2 exposure. There were moderate or strong correlations between most single chemicals and almost all toxicological endpoints as well as between various toxicological outcomes. Our findings highlight those various size-segregated PM-induced toxicological effects in cells, and identify chemical components and sources of PM that play the key role in adverse intracellular responses. Although fine and ultrafine PM have attracted much attention, the inflammatory damage caused by coarse PM cannot be ignored.
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Affiliation(s)
- Mo Yang
- Department of Environmental and Biological Science, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland; Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Hui-Xian Zeng
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xin-Feng Wang
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Henri Hakkarainen
- Department of Environmental and Biological Science, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Ari Leskinen
- Finnish Meteorological Institute, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland; Department of Applied Physics, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Mika Komppula
- Finnish Meteorological Institute, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Marjut Roponen
- Department of Environmental and Biological Science, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Qi-Zhen Wu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Shu-Li Xu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Zi Lin
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Ru-Qing Liu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Wen Hu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Bo-Yi Yang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiao-Wen Zeng
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Hui Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Pasi Jalava
- Department of Environmental and Biological Science, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
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Banerjee S, Dhar S, Sudarshan M, Chakraborty A, Bhattacharjee S, Bhattacharjee P. Investigating the synergistic role of heavy metals in Arsenic-induced skin lesions in West Bengal, India. J Trace Elem Med Biol 2023; 75:127103. [PMID: 36435151 DOI: 10.1016/j.jtemb.2022.127103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Arsenic toxicity is one of the major health issues throughout the world. Approximately 108 countries that account for more than 230 million people worldwide are at high risk of arsenic poisoning mainly through drinking water and diet. Chronic exposure to arsenic causes several pathophysiological end-points including skin lesions, peripheral neuropathy, cancer, etc. In India, the population living in the lower Gangetic basin possesses a great risk of arsenicosis and other diseases. Scientists are trying to understand the gene-environmental interactions behind arsenic toxicity revealing the potential role of genetic variants of individuals. Few pieces of the literature showed that the population is not exposed to a mixture of metals. Hence, in this study, an attempt has been made to explore whether some other metals play a synergistic role in As-induced toxicity. METHODS For this, an assessment of the level of heavy metals using ED-XRF in soil, vegetables from As-exposed areas along with quantification of the heavy metal concentration in human blood and hair of the As-exposed population were conducted. RESULTS Results show the concentration of urinary arsenic is very high signifying the magnitude of the exposure. In addition to this, the levels of iron (Fe), copper (Cu), chromium (Cr) were found to be very high in soil and Fe, manganese (Mn), lead (Pb) in vegetables were exceeding the WHO/FAO recommended permissible limit. However, Fe and zinc (Zn) were predominantly high in whole blood and hair of the arsenic-exposed population when compared with the control population. CONCLUSION It can be confirmed that the population from Murshidabad is exposed to As and other heavy metals through drinking water as well as food. Particularly for this population, Fe, Zn and rubidium (Rb) may play a synergistic role in arsenic-induced toxicity. However, further studies on the large population-based investigation are required to establish the chemistry of the metal toxicity.
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Affiliation(s)
- Shuvam Banerjee
- Environmental epigenomics Laboratory, Department of Environmental Science, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700019, West Bengal, India; UGC-DAE Consortium for Scientific Research, Kolkata Center, Sector-III, LB-8, Bidhan Nagar, Kolkata 700106, West Bengal, India
| | - Shrinjana Dhar
- Environmental epigenomics Laboratory, Department of Environmental Science, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700019, West Bengal, India
| | - M Sudarshan
- UGC-DAE Consortium for Scientific Research, Kolkata Center, Sector-III, LB-8, Bidhan Nagar, Kolkata 700106, West Bengal, India
| | - Anindita Chakraborty
- UGC-DAE Consortium for Scientific Research, Kolkata Center, Sector-III, LB-8, Bidhan Nagar, Kolkata 700106, West Bengal, India
| | | | - Pritha Bhattacharjee
- Environmental epigenomics Laboratory, Department of Environmental Science, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700019, West Bengal, India.
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Tran D, Kwo E, Nguyen E. Current state and future potential of AI in occupational respiratory medicine. Curr Opin Pulm Med 2022; 28:139-143. [PMID: 34873098 DOI: 10.1097/mcp.0000000000000852] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW The COVID-19 pandemic has accelerated the pace of technological development relating to pulmonary diseases. The advent of newer technologies, such as Artificial Intelligence (AI), continues to be adapted for diagnostic purposes. AI offers comparable precision to trained physicians under certain circumstances, as well as the unique ability to process the information characteristic of Big Data. With respect to individual susceptibilities/pre-existing diseases, AI seems poised to integrate such individualized information and contribute to a greater implementation of precision medicine. RECENT FINDINGS AI can match trained clinicians in specific applications, but AI has limitations that require clearly defined questions and a high quality of data. Data collected for this purpose is predicted to increase both in quality and volume, as technology concerned with personal health (FitBit, Apple Watch) proliferates. However, the role of AI with respect to physicians in a clinical setting is still being debated. AI generally aims to increase objectivity through its correlational methodology. SUMMARY AI continues to be a proliferative field of study. It has defined strengths and weaknesses which, if accounted for, has the potential to increase healthcare access as well as the quality of care delivered.
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Affiliation(s)
- Dylan Tran
- University of California, Irvine, California
| | | | - Ethan Nguyen
- Palisades Charter High School, Los Angeles, California, USA
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Banerjee A, Sarkar S, Gorai S, Kabiraj A, Bandopadhyay R. High arsenic tolerance in Brevundimonas aurantiaca PFAB1 from an arsenic-rich Indian hot spring. ELECTRON J BIOTECHN 2021. [DOI: 10.1016/j.ejbt.2021.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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McEwen K, Brodie L. Lung transplantation for silicosis and recovery: an Australian case study. ACTA ACUST UNITED AC 2021; 30:178-183. [PMID: 33565932 DOI: 10.12968/bjon.2021.30.3.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Lung transplantation is a well-established treatment for a variety of end-stage pulmonary diseases. However, the journey of a lung transplant recipient is complex and multifaceted. Silicosis is a rare indication for lung transplantation, but no other treatment is yet available for this disease in its end stages. This Australian case study presents a 52-year-old man with silicosis who received bilateral lung transplantation. The patient was frequently noncompliant with noninvasive ventilation therapy and experienced the complication of type 2 respiratory failure. Patient education and support provided, particularly around medication management following transplantation surgery, are discussed here. The patient's social situation and its implications for both him and his family are also considered.
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Affiliation(s)
- Kate McEwen
- Registered Nurse, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Lyndell Brodie
- Nurse Educator, St Vincent's Hospital, Sydney, New South Wales, Australia
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Ma J, Xu Y, Li W, Zhou Y, Wang D, Yang M, Wang B, Chen W. High-mobility group box 1 promotes epithelial-to-mesenchymal transition in crystalline silica induced pulmonary inflammation and fibrosis. Toxicol Lett 2020; 330:134-143. [PMID: 32428545 DOI: 10.1016/j.toxlet.2020.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 05/02/2020] [Accepted: 05/12/2020] [Indexed: 12/19/2022]
Abstract
Silicosis is an inflammatory and fibrotic lung disease caused by prolonged inhalation of silica. The potential role of high-mobility group box-1 (HMGB-1) and its underlying mechanisms in silicosis remain unclear. In this study, intratracheal instillation of a silica suspension was used to establish silicosis in male C57BL/6 mice. To elucidate the effects of HMGB-1 on the pathogenesis of silicosis, we used HMGB-1 neutralizing antibody (anti-HMGB-1) and recombinant HMGB-1 (rmHMGB-1) to abrogate or increase the HMGB-1 levels, respectively. At days 7, 28, and 84, the accumulation of macrophages and neutrophils decreased by anti-HMGB-1 treatment. The expression levels of interleukin-6 and tumor necrosis factor-α in lung increased in response to silica exposure across three time points; anti-HMGB-1 could alleviate those expressions at day 28 and 84. In contrast, rmHMGB-1 aggravated this process. At days 28 and 84, the protein expression of fibronectin and col1a1 decreased in the silica + anti-HMGB-1 groups but increased in silica + rmHMGB-1 groups compared to mice with silica alone. Further study suggested that HMGB-1-mediated epithelial-mesenchymal transition participated in the development of silicosis. In conclusion, the findings demonstrate that HMGB-1 participates in the pathogenesis of silicosis and may represent a potential therapeutic target for the treatment of silicosis.
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Affiliation(s)
- Jixuan Ma
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yiju Xu
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Wei Li
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yun Zhou
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Dongming Wang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Meng Yang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Bin Wang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Weihong Chen
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
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Bhattacharjee P, Paul S, Bhattacharjee P. Understanding the mechanistic insight of arsenic exposure and decoding the histone cipher. Toxicology 2020; 430:152340. [PMID: 31805316 DOI: 10.1016/j.tox.2019.152340] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/25/2019] [Accepted: 12/02/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND The study of heritable epigenetic changes in arsenic exposure has intensified over the last decade. Groundwater arsenic contamination causes a great threat to humans and, to date, no accurate measure has been formulated for remediation. The fascinating possibilities of epi-therapeutics identify the need for an in-depth mechanistic understanding of the epigenetic landscape. OBJECTIVE In this comprehensive review, we have set to analyze major studies pertaining to histone post-translational modifications in arsenic-mediated disease development and carcinogenesis during last ten years (2008-2018). RESULTS The role of the specific histone marks in arsenic toxicity has been detailed. A comprehensive list that includes major arsenic-induced histone modifications identified for the last 10 years has been documented and details of different states of arsenic, organisms, exposure type, study platform, and findings were provided. An arsenic signature panel was suggested to help in early prognosis. An attempt has been made to identify the grey areas of research. PROSPECTS Future prospective multi-target analyses of the inter-molecular crosstalk among different histone marks are needed to be explored further in order to understand the mechanism of arsenic toxicity and carcinogenicity and to confirm the suitability of these epi-marks as prognostic markers.
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Affiliation(s)
- Pritha Bhattacharjee
- Department of Zoology, University of Calcutta, Kolkata 700019, India; Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | - Somnath Paul
- Department of Epigenetics and Molecular Carcinogenesis, UT M.D. Anderson Cancer Center, Smithville, TX 78957, USA
| | - Pritha Bhattacharjee
- Department of Environmental Science, University of Calcutta, Kolkata 700019, India.
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NLRP3 and CARD8 polymorphisms influence risk for asbestos-related diseases. J Med Biochem 2020; 39:91-99. [PMID: 32549782 DOI: 10.2478/jomb-2019-0025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 04/26/2019] [Indexed: 11/21/2022] Open
Abstract
Background This study aimed to investigate the association between NLRP3 rs35829419 and CARD8 rs2043211 polymorphisms and the risk of developing pleural plaques, asbestosis, and malignant mesothelioma (MM), and to study the influence of the interactions between polymorphisms and asbestos exposure on the risk of developing these diseases. Methods The case-control study included 416 subjects with pleural plaques, 160 patients with asbestosis, 154 subjects with MM and 149 subjects with no asbestos disease. The NLRP3 rs35829419 and CARD8 rs2043211 polymorphisms were determined using real-time PCR-based methods. In the statistical analysis, standard descriptive statistics was followed by univariate and multivariate logistic regression modelling. Results Asbestos exposure (medium and high vs low) was associated with the risk for each studied asbestos-related disease. An increased risk of pleural plaques was found for CARD8 rs2043211 at + TT genotypes (OR = 1.48, 95% CI 1.01-2.16, p = 0.042). When the analysis was performed for MM patients as cases, and pleural plaques patients as controls, a decreased MM risk was observed for carriers of CARD8 rs2043211 TT genotype (OR = 0.52, 95% CI 0.27-1.00, p = 0.049). The interactions between NLRP3 rs35829419 and CARD8 rs2043211 genotypes did not influence the risk of any asbestos-related disease. However, when testing interactions with asbestos exposure, a decreased risk of asbestosis was found for NLRP3 CA+AA genotypes (OR = 0.09, 95% CI 0.01-0.60, p = 0.014). Conclusions The results of our study suggest that NLRP3 and CARD8 polymorphisms could affect the risk of asbestos-related diseases.
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Tomasetti M, Gaetani S, Monaco F, Neuzil J, Santarelli L. Epigenetic Regulation of miRNA Expression in Malignant Mesothelioma: miRNAs as Biomarkers of Early Diagnosis and Therapy. Front Oncol 2019; 9:1293. [PMID: 31850200 PMCID: PMC6897284 DOI: 10.3389/fonc.2019.01293] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/07/2019] [Indexed: 12/12/2022] Open
Abstract
Asbestos exposure leads to epigenetic and epigenomic modifications that, in association with ROS-induced DNA damage, contribute to cancer onset. Few miRNAs epigenetically regulated in MM have been described in literature; miR-126, however, is one of them, and its expression is regulated by epigenetic mechanisms. Asbestos exposure induces early changes in the miRNAs, which are reversibly expressed as protective species, and their inability to reverse reflects the inability of the cells to restore the physiological miRNA levels despite the cessation of carcinogen exposure. Changes in miRNA expression, which results from genetic/epigenetic changes during tumor formation and evolution, can be detected in fluids and used as cancer biomarkers. This article has reviewed the epigenetic mechanisms involved in miRNA expression in MM, focusing on their role as biomarkers of early diagnosis and therapeutic effects.
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Affiliation(s)
- Marco Tomasetti
- Section of Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Simona Gaetani
- Section of Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Federica Monaco
- Section of Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Jiri Neuzil
- Mitochondria, Apoptosis and Cancer Research Group, School of Medical Science, Griffith University, Southport, QLD, Australia.,Molecular Therapy Group, Institute of Biotechnology, Czech Academy of Sciences, Prague, Czechia
| | - Lory Santarelli
- Section of Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
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13
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Role of arsenic, lead and cadmium on telomere length and the risk of carcinogenesis: a mechanistic insight. THE NUCLEUS 2019. [DOI: 10.1007/s13237-019-00280-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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14
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Muralidhar V, Raghav P, Das P, Goel A. A case from India of pleural malignant mesothelioma probably due to domestic and environmental asbestos exposure: a posthumous report. BMJ Case Rep 2019; 12:12/3/e227882. [PMID: 30936339 DOI: 10.1136/bcr-2018-227882] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
India is the largest consumer of asbestos in the world. There is no report from India of mesothelioma related to asbestos. The case is a 42-year-old man who died of pleural mesothelioma. He was exposed to asbestos domestically and from the environment since birth. Two of his close family members worked in a factory that used asbestos. The living quarter of the family was within the premises of the factory. Asbestos waste was strewn on the grounds surrounding the quarters. After decades of legal battles by workers and families exposed to asbestos, Indian courts have ordered remedial measures and compensation to people, who are exposed to asbestos at work and the environment. Mesothelioma, currently in epidemic proportions in the west where asbestos production was banned in the 1990s, could rise to alarming levels in the next decades in India if the legal remedial measures are not implemented soon.
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Affiliation(s)
| | - Pankaja Raghav
- Community Medicine, All India Institute of Medical Sciences Jodphur, Jodhpur, Rajasthan, India
| | - Prianka Das
- Community Medicine, National Institute of Preventive and Social Medicine, Dhaka, Dhaka District, Bangladesh
| | - Akhil Goel
- Community Medicine, All India Institute of Medical Sciences Jodphur, Jodhpur, Rajasthan, India
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15
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Soltani N, Keshavarzi B, Sorooshian A, Moore F, Dunster C, Dominguez AO, Kelly FJ, Dhakal P, Ahmadi MR, Asadi S. Oxidative potential (OP) and mineralogy of iron ore particulate matter at the Gol-E-Gohar Mining and Industrial Facility (Iran). ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2018; 40:1785-1802. [PMID: 28281141 PMCID: PMC5610107 DOI: 10.1007/s10653-017-9926-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 02/23/2017] [Indexed: 05/05/2023]
Abstract
Concentrations of total suspended particulate matter, particulate matter with aerodynamic diameter <2.5 μm (PM2.5), particulate matter <10 μm (PM10), and fallout dust were measured at the Iranian Gol-E-Gohar Mining and Industrial Facility. Samples were characterized in terms of mineralogy, morphology, and oxidative potential. Results show that indoor samples exceeded the 24-h PM2.5 and PM10 mass concentration limits (35 and 150 µg m-3, respectively) set by the US National Ambient Air Quality Standards. Calcite, magnetite, tremolite, pyrite, talc, and clay minerals such as kaolinite, vermiculite, and illite are the major phases of the iron ore PM. Accessory minerals are quartz, dolomite, hematite, actinolite, biotite, albite, nimite, laumontite, diopside, and muscovite. The scanning electron microscope structure of fibrous-elongated minerals revealed individual fibers in the range of 1.5 nm to 71.65 µm in length and 0.2 nm to 3.7 µm in diameter. The presence of minerals related to respiratory diseases, such as talc, crystalline silica, and needle-shaped minerals like amphibole asbestos (tremolite and actinolite), strongly suggests the need for detailed health-based studies in the region. The particulate samples show low to medium oxidative potential per unit of mass, in relation to an urban road side control, being more reactive with ascorbate than with glutathione or urate. However, the PM oxidative potential per volume of air is exceptionally high, confirming that the workers are exposed to a considerable oxidative environment. PM released by iron ore mining and processing activities should be considered a potential health risk to the mine workers and nearby employees, and strategies to combat the issue are suggested.
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Affiliation(s)
- Naghmeh Soltani
- Department of Earth Sciences, College of Science, Shiraz University, Shiraz, 71454, Iran.
| | - Behnam Keshavarzi
- Department of Earth Sciences, College of Science, Shiraz University, Shiraz, 71454, Iran
| | - Armin Sorooshian
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, 85721, USA
- Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ, 85721, USA
| | - Farid Moore
- Department of Earth Sciences, College of Science, Shiraz University, Shiraz, 71454, Iran
| | - Christina Dunster
- MRC-PHE Centre for Environment and Health, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Ana Oliete Dominguez
- MRC-PHE Centre for Environment and Health, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Frank J Kelly
- MRC-PHE Centre for Environment and Health, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Prakash Dhakal
- Department of Soil, Water and Environmental Science, University of Arizona, Tucson, AZ, 85721, USA
| | - Mohamad Reza Ahmadi
- Gol-E-Gohar Iron Ore and Steel Research Institute, Gol-E-Gohar Mining and Industrial Co., Sirjan, Iran
| | - Sina Asadi
- Department of Earth Sciences, College of Science, Shiraz University, Shiraz, 71454, Iran
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Lu Y, Li C, Du S, Chen X, Zeng X, Liu F, Chen Y, Chen J. 4-1BB Signaling Promotes Alveolar Macrophages-Mediated Pro-Fibrotic Responses and Crystalline Silica-Induced Pulmonary Fibrosis in Mice. Front Immunol 2018; 9:1848. [PMID: 30250465 PMCID: PMC6139304 DOI: 10.3389/fimmu.2018.01848] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 07/26/2018] [Indexed: 12/19/2022] Open
Abstract
Silicosis is caused by exposure to crystalline silica (CS). We have previously shown that blocking 4-1BB signaling attenuated CS-induced inflammation and pulmonary fibrosis. However, the cells that express 4-1BB, which plays a vital role in promoting fibrosis, are still unknown. In this study, we demonstrated that the expression of 4-1BB is elevated in alveolar macrophages (AMs) in the lungs of CS-injured mice. CS exposure also markedly enhanced the expression of 4-1BB in macrophage-like, MH-S cells. In these cells, activation of the 4-1BB signaling with an agonist antibody led to upregulated secretion of pro-fibrotic mediators. Consistently, blocking 4-1BB downstream signaling or genetic deletion of 4-1BB alleviated pro-fibrotic responses in vitro, while treatment with a 4-1BB fusion protein promoted pro-fibrotic responses. In vivo experiments showed that blocking 4-1BB signaling decreased the expressions of pro-fibrotic mediators and fibrosis. These data suggest that 4-1BB signaling plays an important role in promoting AMs-mediated pro-fibrotic responses and pulmonary fibrosis. Our findings may provide a potential molecular target to reduce CS-induced fibrotic responses in occupational lung disease.
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Affiliation(s)
- Yiping Lu
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
| | - Chao Li
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
| | - Sitong Du
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
| | - Xi Chen
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
| | - Xinning Zeng
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
| | - Fangwei Liu
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
| | - Ying Chen
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
| | - Jie Chen
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang, China
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Cho JH, Oh AY, Park S, Kang SM, Yoon MH, Woo TG, Hong SD, Hwang J, Ha NC, Lee HY, Park BJ. Loss of NF2 Induces TGFβ Receptor 1–mediated Noncanonical and Oncogenic TGFβ Signaling: Implication of the Therapeutic Effect of TGFβ Receptor 1 Inhibitor on NF2 Syndrome. Mol Cancer Ther 2018; 17:2271-2284. [DOI: 10.1158/1535-7163.mct-17-1210] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 05/08/2018] [Accepted: 08/16/2018] [Indexed: 11/16/2022]
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18
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Huo T, Dong F, Deng J, Zhang Q, Ye W, Zhang W, Wang P, Sun D. In vitro genotoxicity of asbestos substitutes induced by coupled stimulation of dissolved high-valence ions and oxide radicals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22356-22367. [PMID: 28766145 DOI: 10.1007/s11356-017-9796-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 07/19/2017] [Indexed: 06/07/2023]
Abstract
The wide use of asbestos and its substitutes has given rise to studies on their possible harmful effects on human health and environment. However, their toxic effects remain unclear. The present study was aimed to disclose the coupled effects of dissolved high-valence ions and oxide radicals using the in vitro cytotoxicity and genotoxicity of chrysotile (CA), nano-SiO2 (NS), ceramic fiber (CF), glass fiber (GF), and rock wool (RW) on Chinese hamster lung cells V79. All samples induced cell mortality correlated well with the chemical SiO2 content of asbestos substitutes and the amount of dissolved Si. Alkali or alkaline earth metal elements relieved mortality of V79 cells; Al2O3 reinforced toxicity of materials. Asbestos substitutes generated lasting, increasing amount of acellular ·OH which formed at the fiber surface at sites with loose/unsaturated bonds, as well as by catalytic reaction through dissolved iron. Accumulated mechanical and radical stimulation induced the intracellular reactive oxygen species (ROS) elevation, morphology change, and deviating trans-membrane ion flux. The cellular ROS appeared as NS > GF > CF ≈ CA > RW, consistent with cell mortality rather than with acellular ·OH generation. Chromosomal and DNA lesions in V79 cells were not directly associated with the cellular ROS, while influenced by dissolved high-valence irons in the co-culture medium. In conclusion, ions from short-time dissolution of dust samples and the generation of extracellular ·OH presented combined effects in the elevation of intracellular ROS, which further synergistically induced cytotoxicity and genotoxicity.
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Affiliation(s)
- Tingting Huo
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
- Institute of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Jianjun Deng
- Clinical Laboratory, Mianyang 404 Hospital, Mianyang, 621010, China
- School of Public Health, Southwest Medical University, Luzhou, 646000, China
| | - Qingbi Zhang
- School of Public Health, Southwest Medical University, Luzhou, 646000, China
| | - Wei Ye
- School of Public Health, Southwest Medical University, Luzhou, 646000, China
| | - Wei Zhang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Pingping Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Dongping Sun
- Institute of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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19
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Bhattacharjee P, Sanyal T, Bhattacharjee S, Bhattacharjee P. Epigenetic alteration of mismatch repair genes in the population chronically exposed to arsenic in West Bengal, India. ENVIRONMENTAL RESEARCH 2018; 163:289-296. [PMID: 29499398 DOI: 10.1016/j.envres.2018.01.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Arsenic exposure and its adverse health outcome, including the association with cancer risk are well established from several studies across the globe. The present study aims to analyze the epigenetic regulation of key mismatch repair (MMR) genes in the arsenic-exposed population. METHOD A case-control study was conducted involving two hundred twenty four (N=224) arsenic exposed [with skin lesion (WSL=110) and without skin lesion (WOSL=114)] and one hundred and two (N=102) unexposed individuals. The methylation status of key MMR genes i.e. MLH1, MSH2, and PMS2 were analyzed using methylation-specific PCR (MSP). The gene expression was studied by qRTPCR. The expression of H3K36me3, which was earlier reported to be an important regulator of MMR pathway, was assessed using ELISA. RESULTS Arsenic-exposed individuals showed significant promoter hypermethylation (p < 0.0001) of MLH1 and MSH2 compared to those unexposed with consequent down-regulation in their gene expression [MLH1 (p=0.001) and MSH2 (p<0.05)]. However, no significant association was found in expression and methylation of PMS2 with arsenic exposure. We found significant down-regulation of H3K36me3 in the arsenic-exposed group, most significantly in the WSL group (p<0.0001). The expression of SETD2, the methyltransferase of an H3K36me3 moiety was found to be unaltered in arsenic exposure, suggesting the involvement of other regulatory factors yet to be identified. DISCUSSION In summary, the epigenetic repression of DNA damage repair genes due to promoter hypermethylation of MLH1 and MSH2 and inefficient recruitment of MMR complex at the site of DNA damage owing to the reduced level of H3K36me3 impairs the mismatch repair pathway that might render the arsenic-exposed individuals more susceptible towards DNA damage and associated cancer risk.
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Affiliation(s)
- Pritha Bhattacharjee
- Department of Zoology, University of Calcutta, Kolkata 700019, India; Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | - Tamalika Sanyal
- Department of Zoology, University of Calcutta, Kolkata 700019, India; Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | | | - Pritha Bhattacharjee
- Department of Environmental Science, University of Calcutta, Kolkata 700019, India.
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20
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Bhattacharjee P, Paul S, Bhattacharjee S, Giri AK, Bhattacharjee P. Association of H3K79 monomethylation (an epigenetic signature) with arsenic-induced skin lesions. Mutat Res 2017; 807:1-9. [PMID: 29161537 DOI: 10.1016/j.mrfmmm.2017.11.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 11/13/2017] [Indexed: 12/15/2022]
Abstract
Arsenic, a non mutagenic carcinogen, poses a profound health risk upon prolonged exposure. The objective of the study was to analyze the post-translational modifications of the major histone H3 and the associated molecular crosstalk to identify the epigenetic signature of arsenic susceptibility. Herein, we identified significant upregulation of H3K79me1, in individuals with arsenic-induced skin lesion (WSL), and H3K79me1 was found to be regulated by the upstream methyltransferase DOT1L. Moreover, the downstream target molecule 53BP1, a tumor suppressor protein that has a docking preference for H3K79me1 at a site of a double-strand break (DSB), was downregulated, indicating greater DNA damage in the WSL group. Western blot data confirmed higher levels of γH2AX, a known marker of DSBs, in group WSL. In vitro dose-response analysis also confirmed the association of the H3K79me1 signature with arsenic toxicity. Taken together, our findings revealed that H3K79me1 and DOT1L could be a novel epigenetic signature of the arsenic-exposed WSL group.
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Affiliation(s)
- Pritha Bhattacharjee
- Department of Zoology and Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | - Somnath Paul
- Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | | | - Ashok K Giri
- Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Pritha Bhattacharjee
- Department of Environmental Science, University of Calcutta, Kolkata 700019, India.
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21
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Diab R, Canilho N, Pavel IA, Haffner FB, Girardon M, Pasc A. Silica-based systems for oral delivery of drugs, macromolecules and cells. Adv Colloid Interface Sci 2017; 249:346-362. [PMID: 28473052 DOI: 10.1016/j.cis.2017.04.005] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/16/2017] [Accepted: 04/17/2017] [Indexed: 12/11/2022]
Abstract
According to the US Food and Drug Administration and the European Food Safety Authority, amorphous forms of silica and silicates are generally recognized to be safe as oral delivery ingredients in amounts up to 1500mg per day. Silica is used in the formulation of solid dosage forms, e.g. tablets, as glidant or lubricant. The synthesis of silica-based materials depends on the payload nature, drug, macromolecule or cell, and on the target release (active or passive). In the literature, most of the examples deal with the encapsulation of drugs in mesoporous silica nanoparticles. Still to date limited reports concerning the delivery of encapsulated macromolecules and cells have been reported in the field of oral delivery, despite the multiple promising examples demonstrating the compatibility of the sol-gel route with biological entities, likewise the interest of silica as an oral carrier. Silica diatoms appear as an elegant, cost-effective and promising alternative to synthetic sol-gel-based materials. This review reports the latest advances silica-based systems and discusses the potential benefits and drawbacks of using silica for oral delivery of drugs, macromolecules or cells.
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Affiliation(s)
- Roudayna Diab
- SRSMC, UMR 7565, Université de Lorraine-CNRS, F-54506 Vandœuvre-lès-Nancy, France
| | - Nadia Canilho
- SRSMC, UMR 7565, Université de Lorraine-CNRS, F-54506 Vandœuvre-lès-Nancy, France
| | - Ileana A Pavel
- SRSMC, UMR 7565, Université de Lorraine-CNRS, F-54506 Vandœuvre-lès-Nancy, France
| | - Fernanda B Haffner
- SRSMC, UMR 7565, Université de Lorraine-CNRS, F-54506 Vandœuvre-lès-Nancy, France
| | - Maxime Girardon
- SRSMC, UMR 7565, Université de Lorraine-CNRS, F-54506 Vandœuvre-lès-Nancy, France
| | - Andreea Pasc
- SRSMC, UMR 7565, Université de Lorraine-CNRS, F-54506 Vandœuvre-lès-Nancy, France.
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22
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Seidel C, Kirsch A, Fontana C, Visvikis A, Remy A, Gaté L, Darne C, Guichard Y. Epigenetic changes in the early stage of silica-induced cell transformation. Nanotoxicology 2017; 11:923-935. [PMID: 28958182 DOI: 10.1080/17435390.2017.1382599] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 08/31/2017] [Accepted: 09/18/2017] [Indexed: 01/03/2023]
Abstract
The increasing use of nanomaterials in numerous domains has led to growing concern about their potential toxicological properties, and the potential risk to human health posed by silica nanoparticles remains under debate. Recent studies proposed that these particles could alter gene expression through the modulation of epigenetic marks, and the possible relationship between particle exposure and these mechanisms could represent a critical factor in carcinogenicity. In this study, using the Bhas 42 cell model, we compare the effects of exposure to two transforming particles, a pyrogenic amorphous silica nanoparticle NM-203 to those of the crystalline silica particle Min-U-Sil® 5. Short-term treatment by Min-U-Sil® 5 decreased global DNA methylation and increased the expression of the two de novo DNMTs, DNMT3a and DNMT3b. NM-203 treatment affected neither the expression of these enzymes nor DNA methylation. Moreover, modified global histone H4 acetylation status and HDAC protein levels were observed only in the Min-U-Sil® 5-treated cells. Finally, both types of particle treatment induced strong c-Myc expression in the early stage of cell transformation and this correlated with enrichment in RNA polymerase II as well as histone active marks on its promoter. Lastly, almost all parameters that were modulated in the early stage were restored in transformed cells suggesting their involvement mainly in the first steps of cell transformation.
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Affiliation(s)
- Carole Seidel
- a Département Toxicologie et Biométrologie , Institut National de Recherche et Sécurité (INRS) , Vandoeuvre-lès-Nancy Cedex , France
| | - Anaïs Kirsch
- a Département Toxicologie et Biométrologie , Institut National de Recherche et Sécurité (INRS) , Vandoeuvre-lès-Nancy Cedex , France
| | - Caroline Fontana
- a Département Toxicologie et Biométrologie , Institut National de Recherche et Sécurité (INRS) , Vandoeuvre-lès-Nancy Cedex , France
| | - Athanase Visvikis
- b Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA) , UMR 7365 CNRS-Université de Lorraine, Biopôle, Campus Biologie Santé , Vandoeuvre-lès-Nancy , France
| | - Aurélie Remy
- a Département Toxicologie et Biométrologie , Institut National de Recherche et Sécurité (INRS) , Vandoeuvre-lès-Nancy Cedex , France
| | - Laurent Gaté
- a Département Toxicologie et Biométrologie , Institut National de Recherche et Sécurité (INRS) , Vandoeuvre-lès-Nancy Cedex , France
| | - Christian Darne
- a Département Toxicologie et Biométrologie , Institut National de Recherche et Sécurité (INRS) , Vandoeuvre-lès-Nancy Cedex , France
| | - Yves Guichard
- a Département Toxicologie et Biométrologie , Institut National de Recherche et Sécurité (INRS) , Vandoeuvre-lès-Nancy Cedex , France
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Paul S, Bhattacharjee P, Giri AK, Bhattacharjee P. Arsenic toxicity and epimutagenecity: the new LINEage. Biometals 2017; 30:505-515. [PMID: 28516305 DOI: 10.1007/s10534-017-0021-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 05/09/2017] [Indexed: 12/15/2022]
Abstract
Global methylation pattern regulates the normal functioning of a cell. Research have shown arsenic alter these methylation landscapes within the genome leading to aberrant gene expression and inducts various pathophysiological outcomes. Long interspersed nuclear elements (LINE-1) normally remains inert due to heavy methylation of it's promoters, time and various environmental insults, they lose these methylation signatures and begin retro-transposition that has been associated with genomic instability and cancerous outcomes. Of the various high throughput technologies available to detect global methylation profile, development of LINE-1 methylation index shall provide a cost effect-screening tool to detect epimutagenic events in the wake of toxic exposure in a large number of individuals. In the present review, we tried to discuss the state of research and whether LINE-1 methylation can be considered as a potent epigenetic signature for arsenic toxicity.
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Affiliation(s)
- Somnath Paul
- Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700032, India. .,Department of Epigenetics & Molecular Carcinogenesis, The Virginia Harris Cockrell Cancer Center, The University of Texas, M.D. Anderson Cancer Center, Science Park, 1808 Park Road 1C, Smithville, TX, 78957, USA.
| | - Pritha Bhattacharjee
- Department of Environmental Science, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Ashok K Giri
- Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700032, India.
| | - Pritha Bhattacharjee
- Department of Environmental Science, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India.
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Nohara K, Suzuki T, Okamura K, Matsushita J, Takumi S. Tumor-augmenting effects of gestational arsenic exposure on F1 and F2 in mice. Genes Environ 2017; 39:3. [PMID: 28265304 PMCID: PMC5331735 DOI: 10.1186/s41021-016-0069-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 12/08/2016] [Indexed: 02/08/2023] Open
Abstract
The consequences of early-life exposure to chemicals in the environment are emerging concerns. Chronic exposure to naturally occurring inorganic arsenic has been known to cause various adverse health effects, including cancers, in humans. On the other hand, animal studies by Dr. M. Waalkes’ group reported that arsenite exposure of pregnant F0 females, only from gestational day 8 to 18, increased hepatic tumors in the F1 (arsenite-F1) males of C3H mice, whose males tend to develop spontaneous hepatic tumors later in life. Since this mice model illuminated novel unidentified consequences of arsenic exposure, we wished to further investigate the background mechanisms. In the same experimental model, we identified a variety of factors that were affected by gestational arsenic exposure, including epigenetic and genetic changes, as possible constituents of multiple steps of late-onset hepatic tumor augmentation in arsenite-F1 males. Furthermore, our study discovered that the F2 males born to arsenite-F1 males developed hepatic tumors at a significantly higher rate than the control F2 males. The results imply that the tumor augmenting effect is inherited by arsenite-F2 males through the sperm of arsenite-F1. In this article, we summarized our studies on the consequences of gestational arsenite exposure in F1 and F2 mice to discuss novel aspects of biological effects of gestational arsenic exposure.
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Affiliation(s)
- Keiko Nohara
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, 305-8506 Japan
| | - Takehiro Suzuki
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, 305-8506 Japan
| | - Kazuyuki Okamura
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, 305-8506 Japan
| | - Junya Matsushita
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, 305-8506 Japan.,Graduate School of Pharmaceutical Science, Tokyo University of Science, Noda, 278-8510 Japan
| | - Shota Takumi
- Department of Domestic Science, Kagoshima Women's College, Kagoshima, 890-8565 Japan
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Basharat Z, Yasmin A. Energy landscape of a GSTP1 polymorph linked with cytological function decay in response to chemical stressors. Gene 2017; 609:19-27. [PMID: 28153749 DOI: 10.1016/j.gene.2017.01.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/20/2016] [Accepted: 01/27/2017] [Indexed: 12/19/2022]
Abstract
Gene polymorphisms lead to varied structure and functional properties. A single nucleotide polymorphism (SNP) i.e. Ile105Val (rs1695) in glutathione S-transferase P1 (GSTP1) gene influences cytological toxicity and modulates the risk to occupational diseases. Apart from this, cancer, neuropathy, NOx, SOx and ozone mediated respiratory function decline including lung inflammation, asthma, allergy etc., have been reported in people with this missense mutation. Here, the functional properties of rs1695 polymorph are revisited through a computational approach. Changes incurred by GSTP1 antioxidant protein as a result of alteration in its sequence, have been studied through docking followed by Poisson-Boltzmann electrostatic equation interpretation, grid and coulombic energy profile mapping for protein polymorphs with DelPhi. Molecular docking simulation of variant and wild type (WT) protein was carried out with eight FDA approved compounds that target GSTP1 for treatment of various diseases. This was to observe binding pattern variation upon mutation induction. Grid, reaction field and coulombic energy calculation of WT and mutated polymorph, complexed with and without these moieties was then attempted. Alteration in conformation and energy was observed in apo- and holo- form of GSTP1 and their ligand-bound complexes as a result of this mutation. This study is a demo of appraising gene-environment interaction based deleteriousness through molecular docking and dynamics simulation approach.
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Affiliation(s)
- Zarrin Basharat
- Microbiology & Biotechnology Research Lab, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan.
| | - Azra Yasmin
- Microbiology & Biotechnology Research Lab, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan
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26
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Bandyopadhyay AK, Paul S, Adak S, Giri AK. Reduced LINE-1 methylation is associated with arsenic-induced genotoxic stress in children. Biometals 2016; 29:731-41. [DOI: 10.1007/s10534-016-9950-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/08/2016] [Indexed: 10/21/2022]
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