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Xie X, Lu Y, Lei H, Cheng J, An X, Wang W, Jiang X, Xie J, Xiong Y, Wu T. Bioaccumulation and trophic transfer of per- and polyfluoroalkyl substances in a subtropical mangrove estuary food web. Sci Total Environ 2024; 927:172094. [PMID: 38575036 DOI: 10.1016/j.scitotenv.2024.172094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
Mangrove estuaries are an important land-sea transitional ecosystem that is currently under various pollution pressures, while there is a lack of research on per- and polyfluoroalkyl substances (PFAS) in the organisms of mangrove estuaries. In this study, we investigated the distribution and seasonal variation of PFAS in the tissues of organisms from a mangrove estuary. The PFAS concentrations in fish tissues varied from 0.45 ng/g ww to 17.67 ng/g ww and followed the order of viscera > head > carcass > muscle, with the highest tissue burden found in the fish carcass (39.59 ng). The log BAF values of PFDoDA, PFUnDA, and PFDA in the whole fish exceeded 3.70, indicating significant bioaccumulation. The trophic transfer of PFAS in the mangrove estuary food web showed a dilution effect, which was mainly influenced by the spatial heterogeneity of PFAS distribution in the estuarine environment, and demonstrated that the gradient dilution of PFAS in the estuary habitat environment can disguise the PFAS bio-magnification in estuarine organisms, and the larger the swimming ranges of organisms, the more pronounced the bio-dilution effect. The PFOA-equivalent HRs of category A and B fish were 3.48-5.17 and 2.59-4.01, respectively, indicating that mangrove estuarine residents had a high PFAS exposure risk through the intake of estuarine fish.
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Affiliation(s)
- Xingwei Xie
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Fujian 361102, China
| | - Yonglong Lu
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Key Laboratory of Coastal and Wetland Ecosystems, Ministry of Education, College of the Environment and Ecology, Xiamen University, Fujian 361102, China.
| | - Haojie Lei
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China
| | - Jianhua Cheng
- Key Laboratory of Coastal and Wetland Ecosystems, Ministry of Education, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Fujian 361102, China
| | - Xupeng An
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China
| | - Wenqing Wang
- Key Laboratory of Coastal and Wetland Ecosystems, Ministry of Education, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Fujian 361102, China
| | - Xudong Jiang
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China
| | - Jianglin Xie
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China
| | - Yunting Xiong
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China
| | - Ting Wu
- State Key Laboratory of Marine Environmental Science and International Institute for Sustainability Science, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian 361102, China
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Belsky DW, Baccarelli AA. To promote healthy aging, focus on the environment. Nat Aging 2023; 3:1334-1344. [PMID: 37946045 DOI: 10.1038/s43587-023-00518-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/27/2023] [Indexed: 11/12/2023]
Abstract
To build health equity for an aging world marked by dramatic disparities in healthy lifespan between countries, regions and population groups, research at the intersections of biology, toxicology and the social and behavioral sciences points the way: to promote healthy aging, focus on the environment. In this Perspective, we suggest that ideas and tools from the emerging field of geroscience offer opportunities to advance the environmental science of aging. Specifically, the capacity to measure the pace and progress of biological processes of aging within individuals from relatively young ages makes it possible to study how changing environments can change aging trajectories from early in life, in time to prevent or delay aging-related disease and disability and build aging health equity.
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Affiliation(s)
- Daniel W Belsky
- Robert N. Butler Columbia Aging Center and Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
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India-Aldana S, Yao M, Midya V, Colicino E, Chatzi L, Chu J, Gennings C, Jones DP, Loos RJF, Setiawan VW, Smith MR, Walker RW, Barupal D, Walker DI, Valvi D. PFAS Exposures and the Human Metabolome: A Systematic Review of Epidemiological Studies. Curr Pollut Rep 2023; 9:510-568. [PMID: 37753190 PMCID: PMC10520990 DOI: 10.1007/s40726-023-00269-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/03/2023] [Indexed: 09/28/2023]
Abstract
Purpose of Review There is a growing interest in understanding the health effects of exposure to per- and polyfluoroalkyl substances (PFAS) through the study of the human metabolome. In this systematic review, we aimed to identify consistent findings between PFAS and metabolomic signatures. We conducted a search matching specific keywords that was independently reviewed by two authors on two databases (EMBASE and PubMed) from their inception through July 19, 2022 following PRISMA guidelines. Recent Findings We identified a total of 28 eligible observational studies that evaluated the associations between 31 different PFAS exposures and metabolomics in humans. The most common exposure evaluated was legacy long-chain PFAS. Population sample sizes ranged from 40 to 1,105 participants at different stages across the lifespan. A total of 19 studies used a non-targeted metabolomics approach, 7 used targeted approaches, and 2 included both. The majority of studies were cross-sectional (n = 25), including four with prospective analyses of PFAS measured prior to metabolomics. Summary Most frequently reported associations across studies were observed between PFAS and amino acids, fatty acids, glycerophospholipids, glycerolipids, phosphosphingolipids, bile acids, ceramides, purines, and acylcarnitines. Corresponding metabolic pathways were also altered, including lipid, amino acid, carbohydrate, nucleotide, energy metabolism, glycan biosynthesis and metabolism, and metabolism of cofactors and vitamins. We found consistent evidence across studies indicating PFAS-induced alterations in lipid and amino acid metabolites, which may be involved in energy and cell membrane disruption.
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Affiliation(s)
- Sandra India-Aldana
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Meizhen Yao
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Vishal Midya
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Elena Colicino
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Leda Chatzi
- Department of Population and Public Health Sciences, Keck
School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jaime Chu
- Department of Pediatrics, Icahn School of Medicine at Mount
Sinai, New York, NY, USA
| | - Chris Gennings
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Dean P. Jones
- Clinical Biomarkers Laboratory, Division of Pulmonary,
Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, GA, USA
| | - Ruth J. F. Loos
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
- Charles Bronfman Institute for Personalized Medicine, Icahn
School of Medicine at Mount Sinai, New York, NY, USA
- Faculty of Health and Medical Sciences, Novo Nordisk
Foundation Center for Basic Metabolic Research, University of Copenhagen,
Copenhagen, Denmark
| | - Veronica W. Setiawan
- Department of Population and Public Health Sciences, Keck
School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Mathew Ryan Smith
- Clinical Biomarkers Laboratory, Division of Pulmonary,
Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, GA, USA
- Veterans Affairs Medical Center, Decatur, GA, USA
| | - Ryan W. Walker
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Dinesh Barupal
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Douglas I. Walker
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
| | - Damaskini Valvi
- Department of Environmental Medicine and Public Health,
Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New
York, NY 10029, USA
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Zhao L, Teng M, Zhao X, Li Y, Sun J, Zhao W, Ruan Y, Leung KMY, Wu F. Insight into the binding model of per- and polyfluoroalkyl substances to proteins and membranes. Environ Int 2023; 175:107951. [PMID: 37126916 DOI: 10.1016/j.envint.2023.107951] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/18/2023] [Accepted: 04/24/2023] [Indexed: 05/03/2023]
Abstract
Legacy per- and polyfluoroalkyl substances (PFASs) have elicited much concern because of their ubiquitous distribution in the environment and the potential hazards they pose to wildlife and human health. Although an increasing number of effective PFAS alternatives are available in the market, these alternatives bring new challenges. This paper comprehensively reviews how PFASs bind to transport proteins (e.g., serum albumin, liver fatty acid transport proteins and organic acid transporters), nuclear receptors (e.g., peroxisome proliferator activated receptors, thyroid hormone receptors and reproductive hormone receptors) and membranes (e.g., cell membrane and mitochondrial membrane). Briefly, the hydrophobic fluorinated carbon chains of PFASs occupy the binding cavities of the target proteins, and the acid groups of PFASs form hydrogen bonds with amino acid residues. Various structural features of PFAS alternatives such as chlorine atom substitution, oxygen atom insertion and a branched structure, introduce variations in their chain length and hydrophobicity, which potentially change the affinity of PFAS alternatives for endogenous proteins. The toxic effects and mechanisms of action of legacy PFASs can be demonstrated and compared with their alternatives using binding models. In future studies, in vitro experiments and in silico quantitative structure-activity relationship modeling should be better integrated to allow more reliable toxicity predictions for both legacy and alternative PFASs.
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Affiliation(s)
- Lihui Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Miaomiao Teng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China.
| | - Xiaoli Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Yunxia Li
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China
| | - Jiaqi Sun
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China
| | - Wentian Zhao
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Yuefei Ruan
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, 999077, Hong Kong Special Administrative Region
| | - Kenneth M Y Leung
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, 999077, Hong Kong Special Administrative Region
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China.
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5
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Fan S, Wu Y, Bloom MS, Lv J, Chen L, Wang W, Li Z, Jiang Q, Bu L, Shi J, Shi T, Zeng X, Zhang L, Zhang Z, Yang B, Dong G, Feng W. Associations of per- and polyfluoroalkyl substances and their alternatives with bone mineral density levels and osteoporosis prevalence: A community-based population study in Guangzhou, Southern China. Sci Total Environ 2023; 862:160617. [PMID: 36462653 DOI: 10.1016/j.scitotenv.2022.160617] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/10/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Evidence concerning associations of per- and polyfluoroalkyl substances (PFASs) exposure with bone mineral density (BMD) and osteoporosis is scarce. Additionally, no study has examined the effects of PFAS isomers and alternatives on bone health. OBJECTIVES To evaluate the associations of PFASs and PFAS alternatives with BMD levels and osteoporosis prevalence. METHODS A total of 1260 healthy adults from southern China were enrolled. Serum concentrations of 32 legacy PFASs, PFAS isomers, and alternatives were measured using modified liquid chromatography-tandem mass spectrometry. Logistic and linear regression models were applied to evaluate the associations of PFASs with osteoporosis prevalence and BMD levels, respectively, adjusting for confounding factors. We performed stratified analyses to assess potential effect modifications of age and sex. We further used sensitivity analyses to testify the robustness of the main findings. RESULTS There were 204 (16.2 %) participants diagnosed with osteoporosis. Eleven of the studied PFASs (i.e., PFHpA, PFOA, PFBS, PFHpS, total-PFHxS, n-PFHxS, br-PFHxS, br-PFOS, 1m-PFOS, Σ3 + 4 + 5m-PFOS, and 6:2 Cl-PFESA) showed significant and inverse associations with BMD levels (mean differences ranged from -6.47 to -26.07 per one ln-unit increase in the PFASs). Additionally, we observed that each one ln-unit increase in PFHpA was significantly associated a 23 % (OR = 1.23, 95 % CI = 1.04, 1.45) greater odds of osteoporosis. The above associations were consistent in several sensitivity analyses we performed. Stratified analyses showed stronger associations among women and younger compared to their counterparts. CONCLUSIONS Our findings suggested that greater PFAS exposure is associated with poorer bone health, especially in women and younger people.
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Affiliation(s)
- Shujun Fan
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China; School of Public Health, Southern Medical University, Guangzhou, China
| | - Yan Wu
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Michael S Bloom
- Department of Global and Community Health, George Mason University, Fairfax, VA, USA
| | - Jiayun Lv
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Li Chen
- Department of Public Health, Yuexiu District Center for Disease Control and Prevention, Guangzhou, China
| | - Weiping Wang
- Department of Public Health, Panyu District Center for Disease Control and Prevention, Guangzhou, China
| | - Zhi Li
- Department of Public Health, Conghua District Center for Disease Control and Prevention, Guangzhou, China
| | - Qinqin Jiang
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Li Bu
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Jie Shi
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Tongxing Shi
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Xiaowen Zeng
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Lin Zhang
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Zhoubin Zhang
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Boyi Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Guanghui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China.
| | - Wenru Feng
- Department of Environmental Health, Guangzhou Center for Disease Control and Prevention, Guangzhou, China; Institute of Public Health, Guangzhou Medical University & Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
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Zhang X, Flaws JA, Spinella MJ, Irudayaraj J. The Relationship between Typical Environmental Endocrine Disruptors and Kidney Disease. Toxics 2022; 11:32. [PMID: 36668758 PMCID: PMC9863798 DOI: 10.3390/toxics11010032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/17/2022] [Accepted: 12/27/2022] [Indexed: 05/12/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are exogenous substances that alter the endocrine function of an organism, to result in adverse effects on growth and development, metabolism, and reproductive function. The kidney is one of the most important organs in the urinary system and an accumulation point. Studies have shown that EDCs can cause proteinuria, affect glomeruli and renal tubules, and even lead to diabetes and renal fibrosis in animal and human studies. In this review, we discuss renal accumulation of select EDCs such as dioxins, per- and polyfluoroalkyl substances (PFAS), bisphenol A (BPA), and phthalates, and delineate how exposures to such EDCs cause renal lesions and diseases, including cancer. The regulation of typical EDCs with specific target genes and the activation of related pathways are summarized.
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Affiliation(s)
- Xing Zhang
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Jodi A. Flaws
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Carl Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Michael J. Spinella
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Carl Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Joseph Irudayaraj
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Carl Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Beckman Institute of Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
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Otero-Sabio C, Giacomello M, Centelleghe C, Caicci F, Bonato M, Venerando A, Graïc JM, Mazzariol S, Finos L, Corain L, Peruffo A. Cell cycle alterations due to perfluoroalkyl substances PFOS, PFOA, PFBS, PFBA and the new PFAS C6O4 on bottlenose dolphin (Tursiops truncatus) skin cell. Ecotoxicol Environ Saf 2022; 244:113980. [PMID: 36057203 DOI: 10.1016/j.ecoenv.2022.113980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) have become ubiquitous environmental contaminants in aquatic ecosystems worldwide. Marine mammals, as top predators, are constantly exposed to several PFAS compounds that accumulate in different tissues. As a proxy to assess cytotoxicity of PFAS in the bottlenose dolphin (Tursiops truncatus), we generated a new immortalized cell line derived from skin samples of bottlenose dolphin. Using high content imaging, we assessed the effects of increasing concentrations of PFOS, PFOA, PFBS, PFBA and C6O4 on cell viability and cell cycle phases. In particular, we classified all cells based on multiple morphometric differences of the nucleus in three populations, named respectively "Normal" (nuclei in G0, S and M phase); "Large" (nuclei showing characteristics of senescence) and "Small" (nuclei with fragmentation and condensed chromatin). Combining this approach with cell cycle analysis we determined which phases of the cell cycle were influenced by PFAS. The results revealed that the presence of PFOS, PFBS and PFBA could increase the number of cells in G0+G1 phase and decrease the number of those in the S phase. Moreover, PFOS and PFBS lowered the fraction of cells in the M phase. Interestingly PFOS, PFBS and PFBA reduced the prevalence of the senescence phenotype ("large" nuclei), suggesting a potential tumorigenic effect. Besides, the presence of PFOS and PFBS correlated also with a significant decrease in the number of "small" nuclei. The C6O4 exposure did not highlighted morphometric alteration or cell cycle modification bottlenose dolphin skin cell nuclei. While the effects of PFAS on cell cycle was clear, no significant change was detected either in term of cell proliferation or of viability. This study fosters the overall knowledge on the cellular effects of perfluoroalkyl substances in marine mammals.
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Affiliation(s)
- Cristina Otero-Sabio
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
| | | | - Cinzia Centelleghe
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy.
| | | | - Marco Bonato
- Department of Biology, University of Padua, Padua, Italy
| | - Andrea Venerando
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
| | - Jean-Marie Graïc
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
| | - Sandro Mazzariol
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
| | - Livio Finos
- Department of Developmental Psychology and Socialization, University of Padua, Padua, Italy
| | - Livio Corain
- Department of Management and Engineering, University of Padova, Vicenza, VI, Italy
| | - Antonella Peruffo
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
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Andropova US, Drozdov FV, Shkinev PD, Cherkaev GV, Gervits LL, Serenko OA, Muzafarov AM. Functional silsesquioxane polymers with branched perfluoroalkyl substituents: Synthesis and prospect applications. Eur Polym J 2022; 178:111523. [DOI: 10.1016/j.eurpolymj.2022.111523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Lu B, Qian J, He F, Wang P, He Y, Tang S, Tian X. Effects of long-term perfluorooctane sulfonate (PFOS) exposure on activated sludge performance, composition, and its microbial community. Environ Pollut 2022; 295:118684. [PMID: 34921944 DOI: 10.1016/j.envpol.2021.118684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/07/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
The widespread presence and persistence of perfluorooctane sulfonate (PFOS) in wastewater treatment plants, as well as its toxicity and bioaccumulation potential, necessitates the investigation on their impact on bioreactor performance. A 48-day exposure test was adopted to study the effects of low (10 μg L-1) and high (1000 μg L-1) PFOS concentrations in a sequencing batch reactor on the performance, composition, and microbial community of activated sludge. The results suggested that adding PFOS at low and high concentrations lowered the removal efficiency of total nitrogen by 22.48% (p < 0.01) and 16.30% (p < 0.01) respectively, while enhanced that of total phosphorus by 1.87% (p > 0.05) and 7.07% (p < 0.05) respectively, compared with the control group. The addition of PFOS also led to the deterioration of activated sludge dewatering performance. Composition and spectroscopic measurements revealed that the PFOS dosage changed the composition of the activated sludge. Furthermore, the PFOS altered the structure and function of the activated sludge microbial community as well as key enzyme activities.
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Affiliation(s)
- Bianhe Lu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Jin Qian
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China.
| | - Fei He
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, No.8 Jiangwangmiao Street, Nanjing, 210042, China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Yuxuan He
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Sijing Tang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Xin Tian
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
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10
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Mouro VGS, Ladeira LCM, Lozi AA, de Medeiros TS, Silva MR, de Oliveira EL, de Melo FCSA, da Matta SLP. Different Routes of Administration Lead to Different Oxidative Damage and Tissue Disorganization Levels on the Subacute Cadmium Toxicity in the Liver. Biol Trace Elem Res 2021; 199:4624-4634. [PMID: 33400155 DOI: 10.1007/s12011-020-02570-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/28/2020] [Indexed: 12/15/2022]
Abstract
The toxic effects of cadmium (Cd) on hepatic parameters are widely described in the literature. Experimental models often make use of the intraperitoneal route (i.p.) because it is easier to apply, while in the oral route, Cd poisoning in humans is best represented by allowing the metal to pass through the digestive system and be absorbed into the bloodstream. Thus, this study investigated the Cd exposure impact on the liver, by comparing both i.p. and oral routes, both in single dose, in addition to the oral route in fractional doses. Swiss adult male mice received CdCl2 1.5 mg/kg i.p., 30 mg/kg oral single dose, and 4.28 mg/kg oral route in fractional doses for 7 consecutive days. Cd bioaccumulation was observed in all animals exposed to Cd. Hepatic concentrations of Ca and Fe increased only in the fractionated oral route. Liver activities of SOD and CAT increased only by oral single dose. GST decreased in all forms of oral administration, while MDA decreased only in i.p. route. Liver weight and HSI increased in the i.p. route, while organ volume increased in all forms of oral administration, and liver density increased in all animals exposed to Cd. In hepatic histomorphometry, the changes were more evident in oral administration, mainly in exposure to metal in a single dose. Thus, the subacute administration of Cd in different routes of administration leads to different changes in liver poisoning.
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Affiliation(s)
- Viviane Gorete Silveira Mouro
- Department of General Biology, Federal University of Viçosa, Viçosa, MG, 36570-900, Brazil.
- Department of Pharmacy, Faculty Univertix, Matipó, MG, 35367-000, Brazil.
| | | | - Amanda Alves Lozi
- Department of General Biology, Federal University of Viçosa, Viçosa, MG, 36570-900, Brazil
| | | | | | | | | | - Sérgio Luis Pinto da Matta
- Department of General Biology, Federal University of Viçosa, Viçosa, MG, 36570-900, Brazil
- Department of Animal Biology, Federal University of Viçosa, Viçosa, MG, 36570-900, Brazil
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11
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Jha G, Kankarla V, McLennon E, Pal S, Sihi D, Dari B, Diaz D, Nocco M. Per- and Polyfluoroalkyl Substances (PFAS) in Integrated Crop-Livestock Systems: Environmental Exposure and Human Health Risks. Int J Environ Res Public Health 2021; 18:12550. [PMID: 34886275 DOI: 10.3390/ijerph182312550] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/19/2021] [Accepted: 11/25/2021] [Indexed: 11/17/2022]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are highly persistent synthetic organic contaminants that can cause serious human health concerns such as obesity, liver damage, kidney cancer, hypertension, immunotoxicity and other human health issues. Integrated crop–livestock systems combine agricultural crop production with milk and/or meat production and processing. Key sources of PFAS in these systems include firefighting foams near military bases, wastewater sludge and industrial discharge. Per- and polyfluoroalkyl substances regularly move from soils to nearby surface water and/or groundwater because of their high mobility and persistence. Irrigating crops or managing livestock for milk and meat production using adjacent waters can be detrimental to human health. The presence of PFAS in both groundwater and milk have been reported in dairy production states (e.g., Wisconsin and New Mexico) across the United States. Although there is a limit of 70 parts per trillion of PFAS in drinking water by the U.S. EPA, there are not yet regional screening guidelines for conducting risk assessments of livestock watering as well as the soil and plant matrix. This systematic review includes (i) the sources, impacts and challenges of PFAS in integrated crop–livestock systems, (ii) safety measures and protocols for sampling soil, water and plants for determining PFAS concentration in exposed integrated crop–livestock systems and (iii) the assessment, measurement and evaluation of human health risks related to PFAS exposure.
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12
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Sovadinová I, Upham BL, Trosko JE, Babica P. Applicability of Scrape Loading-Dye Transfer Assay for Non-Genotoxic Carcinogen Testing. Int J Mol Sci 2021; 22:8977. [PMID: 34445682 DOI: 10.3390/ijms22168977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/30/2021] [Accepted: 07/31/2021] [Indexed: 12/27/2022] Open
Abstract
Dysregulation of gap junction intercellular communication (GJIC) is recognized as one of the key hallmarks for identifying non-genotoxic carcinogens (NGTxC). Currently, there is a demand for in vitro assays addressing the gap junction hallmark, which would have the potential to eventually become an integral part of an integrated approach to the testing and assessment (IATA) of NGTxC. The scrape loading-dye transfer (SL-DT) technique is a simple assay for the functional evaluation of GJIC in various in vitro cultured mammalian cells and represents an interesting candidate assay. Out of the various techniques for evaluating GJIC, the SL-DT assay has been used frequently to assess the effects of various chemicals on GJIC in toxicological and tumor promotion research. In this review, we systematically searched the existing literature to gather papers assessing GJIC using the SL-DT assay in a rat liver epithelial cell line, WB-F344, after treating with chemicals, especially environmental and food toxicants, drugs, reproductive-, cardio- and neuro-toxicants and chemical tumor promoters. We discuss findings derived from the SL-DT assay with the known knowledge about the tumor-promoting activity and carcinogenicity of the assessed chemicals to evaluate the predictive capacity of the SL-DT assay in terms of its sensitivity, specificity and accuracy for identifying carcinogens. These data represent important information with respect to the applicability of the SL-DT assay for the testing of NGTxC within the IATA framework.
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Martínez-Quezada R, González-Castañeda G, Bahena I, Domínguez A, Domínguez-López P, Casas E, Betancourt M, Casillas F, Rodríguez J, Álvarez L, Mateos R, Altamirano M, Bonilla E. Effect of perfluorohexane sulfonate on pig oocyte maturation, gap-junctional intercellular communication, mitochondrial membrane potential and DNA damage in cumulus cells in vitro. Toxicol In Vitro 2021; 70:105011. [DOI: 10.1016/j.tiv.2020.105011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/23/2020] [Accepted: 10/05/2020] [Indexed: 01/08/2023]
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14
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Gingrich J, Pu Y, Upham BL, Hulse M, Pearl S, Martin D, Avery A, Veiga-Lopez A. Bisphenol S enhances gap junction intercellular communication in ovarian theca cells. Chemosphere 2021; 263:128304. [PMID: 33155548 PMCID: PMC7726030 DOI: 10.1016/j.chemosphere.2020.128304] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 09/04/2020] [Accepted: 09/10/2020] [Indexed: 05/08/2023]
Abstract
Gap junction intercellular communication (GJIC) is necessary for ovarian function, and it is temporospatially regulated during follicular development and ovulation. At outermost layer of the antral follicle, theca cells provide structural, steroidogenic, and vascular support. Inter- and extra-thecal GJIC is required for intrafollicular trafficking of signaling molecules. Because GJIC can be altered by hormones and endocrine disrupting chemicals (EDCs), we tested if any of five common EDCs (bisphenol A (BPA), bisphenol S (BPS), bisphenol F (BPF), perfluorooctanesulfonic acid (PFOS), and triphenyltin chloride (TPT)) can interfere with theca cell GJIC. Since most chemicals are reported to repress GJIC, we hypothesized that all chemicals tested, within environmentally relevant human exposure concentrations, will inhibit theca cell GJICs. To evaluate this hypothesis, we used a scrape loading/dye transfer assay. BPS, but no other chemical tested, enhanced GJIC in a dose- and time-dependent manner in ovine primary theca cells. A signal-protein inhibitor approach was used to explore the GJIC-modulatory pathways involved. Phospholipase C and mitogen-activated protein kinase (MAPK) inhibitors significantly attenuated BPS-induced enhanced GJIC. Human theca cells were used to evaluate translational relevance of these findings. Human primary theca cells had a ∼40% increase in GJIC in response to BPS, which was attenuated with a MAPK inhibitor, suggestive of a conserved mechanism. Upregulation of GJIC could result in hyperplasia of the theca cell layer or prevent ovulation by holding the oocyte in meiotic arrest. Further studies are necessary to understand in vitro to in vivo translatability of these findings on follicle development and fertility outcomes.
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Affiliation(s)
- Jeremy Gingrich
- Department of Animal Science, Michigan State University, East Lansing, MI, 48824, USA; Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, 48824, USA
| | - Yong Pu
- Department of Animal Science, Michigan State University, East Lansing, MI, 48824, USA
| | - Brad L Upham
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, MI, 48824, USA
| | - Madeline Hulse
- Department of Obstetrics and Gynecology, Sparrow Health System, Lansing, MI, 48912, USA
| | - Sarah Pearl
- Department of Obstetrics and Gynecology, Sparrow Health System, Lansing, MI, 48912, USA
| | - Denny Martin
- Department of Obstetrics and Gynecology, Sparrow Health System, Lansing, MI, 48912, USA
| | - Anita Avery
- Department of Obstetrics and Gynecology, Sparrow Health System, Lansing, MI, 48912, USA; Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Almudena Veiga-Lopez
- Department of Animal Science, Michigan State University, East Lansing, MI, 48824, USA; Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.
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15
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Zhou Y, Li H, Lin C, Mao Y, Rao J, Lou Y, Yang X, Xu X, Jin F. Perfluorooctanoic acid (PFOA) inhibits the gap junction intercellular communication and induces apoptosis in human ovarian granulosa cells. Reprod Toxicol 2020; 98:125-133. [PMID: 32971237 DOI: 10.1016/j.reprotox.2020.09.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/27/2020] [Accepted: 09/09/2020] [Indexed: 01/13/2023]
Abstract
Perfluorooctanoic acid (PFOA) has attracted widespread research attention as it is very stable, bioaccumulates, and causes reproductive toxicity. Data from several animal experiments and epidemiological studies indicate that female fertility may decline because of ovarian granulosa cell (GC) apoptosis as oocyte quality is positively associated with effective gap junctional intercellular communication (GJIC) between GCs. To the best of our knowledge, however, no previous trials have been conducted or reported on the effects of PFOA exposure on apoptosis induction in human GCs. Moreover, the roles of GJIC in GC survival and in the induction of apoptosis in GCs by PFOA remain unclear. To test this, we cultured human GCs in vitro and treated them with 0 μM, 0.3 μM, 3 μM, or 30 μM PFOA for 24 h. We also treated a human ovarian GC line (KGN) with various combinations of PFOA, retinoic acid (RA, 10 μM), and carbenoxolone disodium (CBX, 50 mM). Our findings showed that PFOA lowered human GC viability and increased apoptosis. The effects of CBX resemble those of PFOA. The combination of PFOA and CBX enhances the inhibition of GJIC by PFOA and promotes apoptosis. The effects of RA are the opposite to those of PFOA. The combination of RA and PFOA mitigates PFOA-induced GJIC inhibition and reduces apoptosis. The observed expression levels of apoptosis-related proteins were consistent with the aforementioned findings. Hence, our study demonstrated that PFOA may induce human ovarian GC apoptosis by inhibiting GJIC.
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Affiliation(s)
- Yuanyuan Zhou
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Hongping Li
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chuanping Lin
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yuchan Mao
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinpeng Rao
- Reproductive Medical Center, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yiyun Lou
- Department of Gynecology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Xinyun Yang
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - XiangRong Xu
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fan Jin
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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Tien PT, Lin HJ, Tsai YY, Lim YP, Chen CS, Chang CY, Lin CJ, Chen JJY, Wu SM, Huang YJ, Wan L. Perfluorooctanoic acid in indoor particulate matter triggers oxidative stress and inflammation in corneal and retinal cells. Sci Rep 2020; 10:15702. [PMID: 32973190 PMCID: PMC7518444 DOI: 10.1038/s41598-020-72600-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/03/2020] [Indexed: 11/18/2022] Open
Abstract
To investigate the particle size distribution of particulate matter and the concentration of specific perfluorinated compounds in indoor dust samples from several locations. Then, we used cell-based assays to investigate the effect of perfluorinated compounds on human corneal epithelial (HCEpiC), endothelial cells (HCEC) and retinal pigment epithelial cells (RPE). Indoor dust samples were collected at five different locations and PM50–10, PM10–2.5, and PM2.5–1 were fractionized. The presence and levels of 8:2 fluorotelomer alcohol, 10:2 fluorotelomer alcohol, and perfluorooctanoic acid were detected by gas chromatography–mass spectrometry. The effect of perfluorooctanoic acid on the activation of reactive oxygen species, transepithelial resistance as well as the expression of interleukin (IL)-6 and IL-8 were determined. The basolateral media of human corneal epithelial or human corneal endothelial cells were used to treat human corneal endothelial or retinal pigment epithelial cells, respectively to indicate the potential of ocular surface inflammation may result in retinal inflammation. Among perfluorinated compounds, only perfluorooctanoic acid was detected in all indoor dust samples. Perfluorooctanoic acid had the highest concentration among all perfluorinated compounds in the samples. Exposure to perfluorooctanoic acid impaired tight junction sealing and increased the levels of reactive oxygen species in human corneal epithelial cells. In human corneal epithelial cells, secretion of IL-6 and IL-8 in both apical and basolateral media was promoted significantly by perfluorooctanoic acid treatment. Stimulation with the basolateral media from perfluorooctanoic acid-treated human corneal epithelial cells induced inflammation in human corneal endothelial cells. The treatment of retinal pigment epithelial cells with the basolateral media from stimulated human corneal endothelial cells also elicited the secretion of proinflammatory cytokines. The results indicate that perfluorooctanoic acid exposure impaired the tight junction of corneal cells and caused inflammatory reactions in the retina. Exposure of the cornea to perfluorooctanoic acid contained in particulate matter might induce oxidative stress and inflammation in the retina and represent a risk factor for age-related macular degeneration.
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Affiliation(s)
- Peng-Tai Tien
- Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung, Taiwan.,Department of Ophthalmology, China Medical University Hospital, Taichung, Taiwan
| | - Hui-Ju Lin
- Department of Ophthalmology, China Medical University Hospital, Taichung, Taiwan.,School of Chinese Medicine, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan
| | - Yi-Yu Tsai
- Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung, Taiwan.,Department of Ophthalmology, China Medical University Hospital, Taichung, Taiwan
| | - Yun-Ping Lim
- Department of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Chih Sheng Chen
- School of Chinese Medicine, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan.,Division of Chinese Medicine, Asia University Hospital, Taichung, Taiwan
| | - Ching-Yao Chang
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Chao-Jen Lin
- Department of Pediatrics, Changhua Christian Children's Hospital, Changhua, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Jamie Jiin-Yi Chen
- Department of Ophthalmology, China Medical University Hospital, Taichung, Taiwan
| | - Shan-Mei Wu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan
| | - Yuh-Jeen Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan. .,Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan.
| | - Lei Wan
- School of Chinese Medicine, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan. .,Department of Biotechnology, Asia University, Taichung, Taiwan. .,Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan.
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17
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Li J, Yao J, Xia W, Dai J, Liu H, Pan Y, Xu S, Lu S, Jin S, Li Y, Sun X, Zhang B, Zheng T, Jiang Y, Jing T. Association between exposure to per- and polyfluoroalkyl substances and blood glucose in pregnant women. Int J Hyg Environ Health 2020; 230:113596. [PMID: 32896786 DOI: 10.1016/j.ijheh.2020.113596] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/22/2020] [Accepted: 07/08/2020] [Indexed: 12/22/2022]
Abstract
Increasing evidence shows that exposure to per- and polyfluoroalkyl substances (PFASs), common and persistent anthropogenic pollutants, may affect glucose homeostasis. However, data is limited for pregnant women, and it is less clear how novel fluorinated pollutants affect glucose homeostasis during pregnancy. Our goal was to investigate the relationships of exposure to13 PFASs including some novel fluorinated pollutants with blood glucose in 874 Chinese pregnant women from the general population. We measured blood glucose following an oral glucose tolerance test (OGTT) in the second trimester and quantified PFAS concentrations in umbilical cord blood. The associations of PFAS exposure with fasting, 1-h OGTT and 2-h OGTT glucose were examined using the general linear regression model. For every doubling of perfluorobutane sulfonate (PFBS), a short-chain PFAS, the 1-h and 2-h OGTT blood glucose increased 0.09 mmol/L (β = 0.09, 95%CI: 0.02, 0.17) and 0.07 mmol/L (β = 0.07, 95%CI: 0.01, 0.13), respectively. In addition, perfluoroheptanoate (PFHpA), an alternative of perfluorooctanoate (PFOA), was positively associated with fasting glucose (β = 0.07, 95%CI: 0.02, 0.13; high vs low). Higher levels of PFAS exposure were related to increased blood glucose in pregnant women, indicating PFAS exposure may impair glucose homeostasis during pregnancy.
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18
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Čtveráčková L, Jančula D, Raška J, Babica P, Sovadinová I. Structure-Dependent Effects of Phthalates on Intercellular and Intracellular Communication in Liver Oval Cells. Int J Mol Sci 2020; 21:E6069. [PMID: 32842520 DOI: 10.3390/ijms21176069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/17/2020] [Accepted: 08/20/2020] [Indexed: 02/07/2023] Open
Abstract
Humans are exposed to phthalates released from plastics, cosmetics, or food on a daily basis. Phthalates have low acute liver toxicity, but their chronic exposures could induce molecular and cellular effects linked to adverse health outcomes, such as liver tumor promotion or chronic liver diseases. The alternation of gap junctional intercellular communication (GJIC) and MAPK-Erk1/2 pathways in liver progenitor or oval cells can disrupt liver tissue homeostatic mechanisms and affect the development and severity of these adverse outcomes. Our study with 20 different phthalates revealed their structurally dependent effects on liver GJIC and MAPK-Erk1/2 signaling in rat liver WB-F344 cell line with characteristics of liver oval cells. The phthalates with a medium-length side chain (3–6 C) were the most potent dysregulators of GJIC and activators of MAPK-Erk1/2. The effects occurred rapidly, suggesting the activation of non-genomic (non-transcriptional) mechanisms directly by the parental compounds. Short-chain phthalates (1–2 C) did not dysregulate GJIC even after longer exposures and did not activate MAPK-Erk1/2. Longer chain (≥7 C) phthalates, such as DEHP or DINP, moderately activated MAPK-Erk1/2, but inhibited GJIC only after prolonged exposures (>12 h), suggesting that GJIC dysregulation occurs via genomic mechanisms, or (bio)transformation. Overall, medium-chain phthalates rapidly affected the key tissue homeostatic mechanisms in the liver oval cell population via non-genomic pathways, which might contribute to the development of chronic liver toxicity and diseases.
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19
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Rashid F, Ramakrishnan A, Fields C, Irudayaraj J. Acute PFOA exposure promotes epigenomic alterations in mouse kidney tissues. Toxicol Rep 2020; 7:125-132. [PMID: 31938689 PMCID: PMC6953769 DOI: 10.1016/j.toxrep.2019.12.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 01/09/2023] Open
Abstract
Perfluorooctanoic acid (PFOA), a manufactured perfluorochemical is a common surfactant and environmental pollutant found in various consumer products and water sources. Epidemiological studies have demonstrated its association with kidney dysfunction. However, the mechanisms that trigger kidney dysfunction following PFOA exposure is a gap in the field. The work presented explores the potential epigenetic indicators of kidney disease due to exposure to PFOA. In this study, 30 days old CD-1 mice were exposed to 1, 5, 10, or 20 mg/kg/day of PFOA for 10 days. Following acute oral exposure, epigenetic alterations and expression levels of various markers of fibroblast activation were evaluated in kidney tissues. We noted that PFOA-exposed mice exhibited differential methylation yielding 879 differentially methylated regions compared to vehicle. The mRNA expression revealed significant increase in Dnmt1 with decreased Rasal1 expression at higher levels of PFOA exposure suggestive of Rasal1 hypermethylation (an early indicator of fibroblast activation in kidney). Like Dnmt1, we also observed significant increase in Hdac1, 3 and 4. These are class I & II HDACs which are known to be critically altered in some renal diseases. Further, the mRNA expression levels of TGF-β and α-SMA significantly increased compared to vehicle. The KEGG and Go enrichment pathway analysis of reduced representation bisulfite data also revealed pathways implicated in renal fibrosis. Our study shows clear evidence of epigenetic alterations (DNA methylation and HDAC expression changes) in tissues from mouse kidney following PFOA exposure. Our results also suggest that epigenetic alterations in kidney promote the expression of early markers of fibroblast activation.
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Affiliation(s)
- Faizan Rashid
- Biomedical Research Center in Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, USA
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Anujaianthi Ramakrishnan
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Biomedical Research Center in Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Christopher Fields
- High Performance Computing in Biology – HPCBio, Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Joseph Irudayaraj
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Biomedical Research Center in Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, USA
- Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
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20
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Cao Y, Lee C, Davis ETJ, Si W, Wang F, Trimpin S, Luo L. 1000-Fold Preconcentration of Per- and Polyfluorinated Alkyl Substances within 10 Minutes via Electrochemical Aerosol Formation. Anal Chem 2019; 91:14352-14358. [DOI: 10.1021/acs.analchem.9b02758] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yue Cao
- Shandong University of Technology, Zibo, Shandong 255000, China
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Chuping Lee
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
- Department of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan, Republic of China
| | - Eric T. J. Davis
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Weimeng Si
- Shandong University of Technology, Zibo, Shandong 255000, China
| | - Fagang Wang
- Shandong University of Technology, Zibo, Shandong 255000, China
| | - Sarah Trimpin
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Long Luo
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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21
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Domínguez A, Salazar Z, Betancourt M, Ducolomb Y, Casas E, Fernández F, Bahena I, Salomón A, Teteltitla M, Martínez R, Chaparro A, Cuapio P, Salazar-López C, Bonilla E. Effect of perfluorodecanoic acid on pig oocyte viability, intracellular calcium levels and gap junction intercellular communication during oocyte maturation in vitro. Toxicol In Vitro 2019; 58:224-229. [PMID: 30946969 DOI: 10.1016/j.tiv.2019.03.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/05/2019] [Accepted: 03/30/2019] [Indexed: 02/07/2023]
Abstract
Perfluorodecanoic acid (PFDA) is a synthetic perfluorinated compound, which has been reported to exert adverse effects on somatic cells. However, its effects on germ cells have not been studied to date. The aim of the present study was to analyze the effects of PFDA on the viability, intracellular calcium levels and gap junction intercellular communication (GJIC) during porcine oocyte maturation in vitro. PFDA negatively impacted oocyte viability (medium lethal concentration, LC50 = 7.8 μM) and maturation (medium inhibition of maturation, IM50 = 3.8 μM). Oocytes exposed to 3.8 μM PFDA showed higher levels of intracellular calcium relative to control oocytes. In addition, GJIC among the cumulus cells and the oocyte was disrupted. The effects of PFDA on oocyte calcium homeostasis and intercellular communication seem to be responsible for the inhibition of oocyte maturation and oocyte death. In addition, since the deleterious effects of PFDA on oocyte viability, maturation and GJIC are significantly stronger than the previously reported effects of another widely used perfluorinated compound (Perfluorooctane sulfonate) in the same model, the use of PFDA in consumer products is questioned.
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Affiliation(s)
- A Domínguez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - Z Salazar
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - M Betancourt
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - Y Ducolomb
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - E Casas
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - F Fernández
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana-Xochimilco, Calzada del hueso 1100, CP 04960 CDMX, Mexico
| | - I Bahena
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - A Salomón
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - M Teteltitla
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - R Martínez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - A Chaparro
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - P Cuapio
- Clínica de Reproducción Asistida "HISPAREP", Hospital Español, Avenida Ejército Nacional 613, 11520 CDMX, Mexico
| | - C Salazar-López
- Clínica de Reproducción Asistida "HISPAREP", Hospital Español, Avenida Ejército Nacional 613, 11520 CDMX, Mexico
| | - E Bonilla
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico.
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22
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Rodríguez-Jorquera IA, Colli-Dula RC, Kroll K, Jayasinghe BS, Parachu Marco MV, Silva-Sanchez C, Toor GS, Denslow ND. Blood Transcriptomics Analysis of Fish Exposed to Perfluoro Alkyls Substances: Assessment of a Non-Lethal Sampling Technique for Advancing Aquatic Toxicology Research. Environ Sci Technol 2019; 53:1441-1452. [PMID: 30572700 DOI: 10.1021/acs.est.8b03603] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In contrast to mammals, the blood from other vertebrates such as fish contains nucleated red cells. Using a fathead minnow ( Pimephales promelas) oligonucleotide microarray, we compared altered transcripts in the liver and whole blood after exposure to environmentally relevant concentrations of perfluorooctanesulfonic acid (PFOS) and a mixture of seven types of perfluoro alkyl substances (PFAS), including perfluorooctanoic acid (PFOA). We used quantitative polymerase chain reactions and cell-based assays to confirm the main effects and found that blood responded with a greater number of altered genes than the liver. The exposure to PFAS altered similar genes with central roles in a cellular pathway in both tissues, including estrogen receptor α and peroxisome proliferator activator β and γ, indicating that the genes previously associated with PFAS exposure are differentially expressed in blood and liver. The altered transcripts are involved with cholesterol metabolism and mitochondrial function. Our data confirmed that PFAS are weak xenoestrogens and exert effects on DNA integrity. Gene expression profiling from blood samples not related with the immune system, including very-low-density lipoprotein, vitellogenin, estrogen receptor, and thyroid hormone receptor, demonstrated that blood is a useful tissue for assessing endocrine disruption in non-mammalian vertebrates. We conclude that the use of blood for non-lethal sampling in genomics studies is informative and particularly useful for assessing the effects of pollution in endangered species. Further, using blood will reduce animal use and widen the experimental design options for studying the effects of contaminant exposure on wildlife.
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Affiliation(s)
- Ignacio A Rodríguez-Jorquera
- Centro de Humedales Río Cruces (CEHUM) , Universidad Austral de Chile , Independencia 641 , Valdivia , Región de los Ríos , Chile
| | - R Cristina Colli-Dula
- Departamento de Recursos el Mar , Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional , Unidad Mérida , México
| | | | | | - Maria V Parachu Marco
- Laboratorio de Biología Celular y Molecular Aplicada (LBCMA), Instituto de Ciencias Veterinarias del Litoral (ICiVet - Litoral) , Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET) , CP 3080 Esperanza , Santa Fe , Argentina
- Facultad de Humanidades y Ciencias - Universidad Nacional del Litoral , Paraje El Pozo sin nombre , CP 3000 Santa Fe , Argentina
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (Facultad de Humanidades y Ciencias - Universidad de Nacional del Litoral/MASPyMA) , Aristóbulo del Valle 8700 , 3000 Santa Fe (Santa Fe) Argentina
| | | | - Gurpal S Toor
- Department of Environmental Science and Technology , University of Maryland , College Park , Maryland 20742 , United States
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23
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López-Arellano P, López-Arellano K, Luna J, Flores D, Jiménez-Salazar J, Gavia G, Teteltitla M, Rodríguez JJ, Domínguez A, Casas E, Bahena I, Betancourt M, González C, Ducolomb Y, Bonilla E. Perfluorooctanoic acid disrupts gap junction intercellular communication and induces reactive oxygen species formation and apoptosis in mouse ovaries. Environ Toxicol 2019; 34:92-98. [PMID: 30277307 DOI: 10.1002/tox.22661] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/06/2018] [Accepted: 09/16/2018] [Indexed: 06/08/2023]
Abstract
Perfluorooctanoic acid (PFOA) is a member of the perfluoroalkyl acid family of compounds. Due to the presence of strong carbon-fluorine bonds, it is practically nonbiodegradable and highly persistent in the environment. PFOA has been detected in the follicular fluid of women, and positively associated with reduced fecundability and infertility. However, there are no reports concerning the experimental evaluation of PFOA on oocyte toxicity in mammals. The aim of the present study was to determine if PFOA is able to induce oxidative stress in fetal ovaries and cause apoptosis in oocytes in vitro. In addition, since inhibition of the gap junction intercellular communication (GJIC) by PFOA has been demonstrated in liver cells in vivo and in vitro, the effect of PFOA on the GJIC between the oocyte and its supportive cumulus cells was studied. Results show that PFOA induced oocyte apoptosis and necrosis in vitro (medium lethal concentration, LC50 = 112.8 μM), as evaluated with Annexin-V-Alexa 508 in combination with BOBO-1 staining. Reactive oxygen species (ROS) levels, as assessed by DCFH-DA, increased significantly in fetal ovaries exposed to ¼ LC50 (28.2 μM, a noncytotoxic and relevant occupational exposure concentration) and LC50 PFOA ex vivo. This perfluorinated compound also caused the blockage of GJIC in cumulus cells-oocyte complexes (COCs) obtained from female mice exposed in vivo, as evaluated by calcein transfer from cumulus cells to the oocyte. The ability of PFOA of disrupting the GJIC in COCs, generating ROS in the fetal ovary and causing apoptosis and necrosis in mammal's oocytes, might account for the reported association between increasing maternal plasma concentrations of PFOA with reduced fertility in women.
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Affiliation(s)
- Patricia López-Arellano
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
- Maestría en Biología de la Reproducción Animal, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Keila López-Arellano
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Jaquelinne Luna
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Diana Flores
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Javier Jiménez-Salazar
- Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Graciela Gavia
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Mario Teteltitla
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Juan José Rodríguez
- Unidad de Investigación en Genética y Toxicología Ambiental, FES-Zaragoza, UNAM, CDMX, Mexico
| | - Alejandro Domínguez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Eduardo Casas
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Ivan Bahena
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Miguel Betancourt
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Cristina González
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Yvonne Ducolomb
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Edmundo Bonilla
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
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24
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Stanifer JW, Stapleton HM, Souma T, Wittmer A, Zhao X, Boulware LE. Perfluorinated Chemicals as Emerging Environmental Threats to Kidney Health: A Scoping Review. Clin J Am Soc Nephrol 2018; 13:1479-1492. [PMID: 30213782 PMCID: PMC6218824 DOI: 10.2215/cjn.04670418] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 07/27/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND OBJECTIVES Per- and polyfluoroalkyl substances (PFASs) are a large group of manufactured nonbiodegradable compounds. Despite increasing awareness as global pollutants, the impact of PFAS exposure on human health is not well understood, and there are growing concerns for adverse effects on kidney function. Therefore, we conducted a scoping review to summarize and identify gaps in the understanding between PFAS exposure and kidney health. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We systematically searched PubMed, EMBASE, EBSCO Global Health, World Health Organization Global Index, and Web of Science for studies published from 1990 to 2018. We included studies on the epidemiology, pharmacokinetics, or toxicology of PFAS exposure and kidney-related health, including clinical, histologic, molecular, and metabolic outcomes related to kidney disease, or outcomes related to the pharmacokinetic role of the kidneys. RESULTS We identified 74 studies, including 21 epidemiologic, 13 pharmacokinetic, and 40 toxicological studies. Three population-based epidemiologic studies demonstrated associations between PFAS exposure and lower kidney function. Along with toxicology studies (n=10) showing tubular histologic and cellular changes from PFAS exposure, pharmacokinetic studies (n=5) demonstrated the kidneys were major routes of elimination, with active proximal tubule transport. In several studies (n=17), PFAS exposure altered several pathways linked to kidney disease, including oxidative stress pathways, peroxisome proliferators-activated receptor pathways, NF-E2-related factor 2 pathways, partial epithelial mesenchymal transition, and enhanced endothelial permeability through actin filament modeling. CONCLUSIONS A growing body of evidence portends PFASs are emerging environmental threats to kidney health; yet several important gaps in our understanding still exist.
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Affiliation(s)
- John W. Stanifer
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina; and
- Duke Global Health Institute
| | | | - Tomokazu Souma
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina; and
| | | | | | - L. Ebony Boulware
- Division of General Internal Medicine, Department of Medicine, Duke University, Durham, North Carolina
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25
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Chen X, Nie X, Mao J, Zhang Y, Yin K, Sun P, Luo J, Liu Y, Jiang S, Sun L. Perfluorooctane sulfonate mediates secretion of IL-1β through PI3K/AKT NF-кB pathway in astrocytes. Neurotoxicol Teratol 2018; 67:65-75. [DOI: 10.1016/j.ntt.2018.03.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 02/09/2018] [Accepted: 03/19/2018] [Indexed: 12/21/2022]
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26
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Chen X, Nie X, Mao J, Zhang Y, Yin K, Jiang S. Perfluorooctanesulfonate induces neuroinflammation through the secretion of TNF-α mediated by the JAK2/STAT3 pathway. Neurotoxicology 2018; 66:32-42. [DOI: 10.1016/j.neuro.2018.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Liu C, Gin KYH. Immunotoxicity in green mussels under perfluoroalkyl substance (PFAS) exposure: Reversible response and response model development. Environ Toxicol Chem 2018; 37:1138-1145. [PMID: 29405365 DOI: 10.1002/etc.4060] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/19/2017] [Accepted: 12/06/2017] [Indexed: 06/07/2023]
Abstract
The immunotoxicity of 4 commonly detected perfluoroalkyl substances (PFASs), namely, perfluorooctanesulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorodecanoic acid (PFDA) was investigated by measuring biomarkers of the immune profile of green mussels, Perna viridis. The biomarkers included neutral red retention, phagocytosis, and spontaneous cytotoxicity, all of which were tested on mussel hemocytes. Hemocytes are an important component of the invertebrate immune system. We found that exposure to PFASs could lead to reduced hemocyte cell viability and suppress immune function by up to 50% of normal performance within the experimental exposure range. The results indicate that PFASs have an immunotoxic potential and thus could pose severe health risks to aquatic organisms. The reported immunotoxicity is likely to result from the compounds' direct and indirect interactions with the hemocyte membrane, and therefore likely to affect the functionality of these cells. The immunotoxic response was found to be related to the organism's burden of PFASs, and was reversible when the compounds were removed from the test organisms. Based on this relationship, models using an organism's PFAS concentration and bioaccumulation factor (BAF) as the independent variables were established to quantify PFAS-induced immunotoxicity. The models help us to gain a better understanding of the toxic mechanism of PFASs, and provide a tool to evaluate adverse effects for the whole group of compounds with one mathematical equation. Environ Toxicol Chem 2018;37:1138-1145. © 2018 SETAC.
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Affiliation(s)
- Changhui Liu
- NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Karina Yew-Hoong Gin
- NUS Environmental Research Institute, National University of Singapore, Singapore
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore
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28
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Zhang S, Peng H, Mu D, Zhao H, Hu J. Simultaneous determination of (N-ethyl perfluorooctanesulfonamido ethanol)-based phosphate diester and triester and their biotransformation to perfluorooctanesulfonate in freshwater sediments. Environ Pollut 2018; 234:821-829. [PMID: 29247945 DOI: 10.1016/j.envpol.2017.12.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 06/07/2023]
Abstract
While (N-ethyl perfluorooctanesulfonamido ethanol)-based phosphates (SAmPAPs) have been proposed as a group of perfluorooctanesulfonate (PFOS) precursors, investigation of their occurrence and fate has been limited to SAmPAP diester. In this study, SAmPAP diester and triester were simultaneously determined in freshwater sediment from Taihu Lake using a newly developed UPLC-MS/MS method, and their biotransformation to PFOS in lake sediment was investigated. SAmPAP diester and triester were detected in sediments with a detection frequency of 56% and 88%, and their mean concentrations were 0.24 ± 0.11 ng/g dry weight (dw) and 0.12 ± 0.03 ng/g dw, respectively. The SAmPAP diester/triester ratio in sediment was 1.1 ± 4.2, much lower than that (6.7) observed in the technical product, and the positive correlation was found between the concentrations of SAmPAP diester and PFOS in sediments (r2 = 0.45, p = 0.01), suggesting that SAmPAP diester would be biotransformed to PFOS in the lake sediment. The microbial degradation test in the lake sediments further clarified that SAmPAP diester was biodegraded to PFOS, but SAmPAP triester was highly recalcitrant to microbial degradation. This study suggests that the occurrence of SAmPAP diester in freshwater lake sediments may be an important precursor of PFOS.
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Affiliation(s)
- Shiyi Zhang
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Hui Peng
- Department of Chemistry, University of Toronto, Toronto, Canada; School of the Environment, University of Toronto, Toronto, Canada
| | - Di Mu
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Haoqi Zhao
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Jianying Hu
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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29
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Oh JH, Kim EY, Nam TJ. Phycoerythrin Peptide from Pyropia yezoensis Alleviates Endoplasmic Reticulum Stress Caused by Perfluorooctane Sulfonate-Induced Calcium Dysregulation. Mar Drugs 2018; 16:E44. [PMID: 29373516 DOI: 10.3390/md16020044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 01/19/2018] [Accepted: 01/24/2018] [Indexed: 01/27/2023] Open
Abstract
Perfluorooctane sulfonate (PFOS), a stable fluorosurfactant, causes endoplasmic reticulum (ER) stress in the brain. This study was designed to investigate whether a phycoerythrin-derived peptide of Pyropia yezoensis (PYP) reduces PFOS-induced ER stress associated with calcium dysregulation. The protective effects of PYP were determined by cell viability, immunoblotting for ER stress response protein glucose-regulated protein 78 (GRP78) and calcium-dependent protein kinases in rat frontal cortical neurons. PFOS-induced decrease in cell viability was attenuated by PYP pretreatment (1 µg/mL) for 24 h, which was downregulated by inhibiting tropomyosin-receptor kinase B (TrkB). PYP pretreatment downregulated the increase in intracellular calcium levels and phosphorylation of calcium/calmodulin-dependent protein kinase II and c-Jun N-terminal kinase which are associated with a PFOS-induced increase in GRP78. The PFOS-induced increase in GRP78 was downregulated via activation of TrkB receptor-linked extracellular signal-regulated kinases 1/2 (ERK1/2) by PYP pretreatment. Moreover, PYP microinjections (1 µg/kg, 0.54 nmol) attenuated the GRP78 expression in rat prefrontal cortex caused by PFOS (10 mg/kg) exposure for 2 weeks. These findings demonstrate that PYP enhances frontal cortical neuron viability via activation of TrkB receptor-ERK1/2 signaling and attenuation of ER stress in rat prefrontal cortex against PFOS exposure, suggesting that PYP might prevent neuronal dysfunctions caused by PFOS-induced ER stress.
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30
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Han R, Hu M, Zhong Q, Wan C, Liu L, Li F, Zhang F, Ding W. Perfluorooctane sulphonate induces oxidative hepatic damage via mitochondria-dependent and NF-κB/TNF-α-mediated pathway. Chemosphere 2018; 191:1056-1064. [PMID: 28939271 DOI: 10.1016/j.chemosphere.2017.08.070] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 08/13/2017] [Accepted: 08/15/2017] [Indexed: 05/22/2023]
Abstract
Perfluorooctane sulphonate (PFOS) has been reported to accumulate in liver and cause damage. The molecular mechanism of the PFOS-induced hepatotoxicity has not been completely elucidated. The aim of the present study was to investigate whether PFOS-induced oxidative stress plays an important role in liver damage, and if so, what pathway it undergoes for the mechanism of its toxicological action. Male Sprague-Dawley (SD) rats were orally administrated with PFOS at single dose of 1 or 10 mg/kg body weight for 28 consecutive days. Increased serum levels of liver enzymes and abnormal ultra structural changes were observed in the PFOS-exposed rats. Particularly, PFOS exposure significantly increased intracellular reactive oxygen species (ROS) and nitric oxide (NO) production, but weakened intracellular antioxidant defence by inhibiting catalase and superoxide dismutase activities. Signal transduction studies showed that PFOS exposure significantly elevated inducible nitric oxide synthase (iNOS), Bax, cytochrome c, cleaved caspase-9 and cleaved caspase-3, indicating the mitochondria-dependent apoptotic pathway was activated. On the other hand, significant alterations of the PFOS-induced protein expression of NF-κB and IκBα in association with an enhanced level of TNF-α were observed. Taken together, these results indicate that mitochondria play an important role in PFOS-induced hepatotoxicity.
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Affiliation(s)
- Rui Han
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Mingxian Hu
- Department of Pediatrics, Ankang City Central Hospital, No. 85 Jinzhou Road, Ankang 725000, China
| | - Qiang Zhong
- Department of Emergency Medicine, Tongji Hospital Affiliated to Tongji Medical College Huazhong University of Science & Technology, 1095 Jiefang Ave., Wuhan 430030, China
| | - Chong Wan
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Limin Liu
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Fang Li
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Fang Zhang
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
| | - Wenjun Ding
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
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31
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Chou HC, Wen LL, Chang CC, Lin CY, Jin L, Juan SH. From the Cover: l-Carnitine via PPARγ- and Sirt1-Dependent Mechanisms Attenuates Epithelial-Mesenchymal Transition and Renal Fibrosis Caused by Perfluorooctanesulfonate. Toxicol Sci 2017; 160:217-229. [DOI: 10.1093/toxsci/kfx183] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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32
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Oh JH, Kim EY, Choi YH, Nam TJ. Negative regulation of ERK1/2 by PI3K is required for the protective effects of Pyropia yezoensis peptide against perfluorooctane sulfonate-induced endoplasmic reticulum stress. Mol Med Rep 2017; 15:2583-2587. [PMID: 28260037 PMCID: PMC5428443 DOI: 10.3892/mmr.2017.6285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/19/2017] [Indexed: 11/20/2022] Open
Abstract
Perfluorooctane sulfonate (PFOS) is a stable fluorosurfactant, which causes adverse effects in various organisms. The present study was designed to investigate the effects of Pyropia yezoensis peptide (PYP), a peptide comprised of 11 residues (ALEGGKSSGGG), on PFOS-induced endoplasmic reticulum (ER) stress in Chang cells. PFOS exposure (400 µM) for 24 h significantly decreased cell viability, which was upregulated by 250–1,000 pg/ml PYP treatment. Exposure to PFOS also significantly increased expression of the ER stress response protein, glucose-regulated protein 78 (GRP78), and phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2). These elevations were significantly decreased by PYP (250 pg/ml), and, in particular, the PFOS-induced GRP78 upregulation was decreased following treatment with 10 µM SL327, an ERK-kinase inhibitor. However, PYP-induced decreases in GRP78 expression and ERK1/2 phosphorylation were upregulated following treatment with LY294002 (20 µM), a phosphatidylinositol-3 kinase (PI3K) inhibitor. PFOS-induced apoptosis was also significantly attenuated by PYP (250 pg/ml) treatment, and the PYP-induced reduction in apoptosis was abolished by inhibition of PI3K. These findings indicate that negative regulation of ERK1/2 by PI3K is essential for the protective effects of PYP against PFOS-induced cell death, suggesting that PYP may be a candidate for therapeutic use.
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Affiliation(s)
- Jeong Hwan Oh
- Cell Biology Laboratory, Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
| | - Eun-Young Kim
- Cell Biology Laboratory, Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
| | - Youn Hee Choi
- Department of Marine Bio‑Materials and Aquaculture, Pukyong National University, Busan 48513, Republic of Korea
| | - Taek-Jeong Nam
- Cell Biology Laboratory, Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
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Choi EM, Suh KS, Rhee SY, Oh S, Woo JT, Kim SW, Kim YS, Pak YK, Chon S. Perfluorooctanoic acid induces mitochondrial dysfunction in MC3T3-E1 osteoblast cells. J Environ Sci Health A Tox Hazard Subst Environ Eng 2017; 52:281-289. [PMID: 27901621 DOI: 10.1080/10934529.2016.1253402] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Perfluorooctanoic acid (PFOA), a stable organic perfluorinated compound, is an emerging persistent organic pollutant, found widely in human and wildlife populations. Recent evidence suggests that exposure to environmental toxicants can be associated with higher risks of osteoporosis and fractures. We studied the cellular toxicology of PFOA in MC3T3-E1osteoblast cells. To examine the effect of PFOA, we measured cell viability, reactive oxygen species (ROS), mitochondrial superoxide, and mitochondrial parameters including adenosine triphosphate (ATP) level, mitochondrial membrane potential (MMP), cardiolipin content, and cytochrome c release in MC3T3-E1 cells. Incubating MC3T3-E1 cells in different concentrations of PFOA for 48 h resulted in a concentration-dependent decrease in cell viability and significant inductions of ROS and mitochondrial superoxide. Moreover, PFOA induced MMP collapse, cardiolipin peroxidation, cytochrome c release, and decreased ATP levels, which in turn induced apoptosis or necrosis. When osteoblast differentiation markers were assessed, PFOA treatment caused a significant reduction in alkaline phosphatase activity, collagen synthesis, and mineralization in the cells. In summary, we found an ROS- and mitochondria-mediated pathway for the induction of cell damage by PFOA in MC3T3-E1 cells. Together, our results indicate that mitochondrial toxicity could be a plausible mechanism for the toxic effects of PFOA on osteoblast function.
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Affiliation(s)
- Eun Mi Choi
- a Department of Endocrinology and Metabolism , School of Medicine, Kyung Hee University , Seoul , Republic of Korea
| | - Kwang Sik Suh
- b Research Institute of Endocrinology, Kyung Hee University Hospital , Seoul , Republic of Korea
| | - Sang Youl Rhee
- a Department of Endocrinology and Metabolism , School of Medicine, Kyung Hee University , Seoul , Republic of Korea
| | - Seungjoon Oh
- a Department of Endocrinology and Metabolism , School of Medicine, Kyung Hee University , Seoul , Republic of Korea
| | - Jeong-Taek Woo
- a Department of Endocrinology and Metabolism , School of Medicine, Kyung Hee University , Seoul , Republic of Korea
| | - Sung Woon Kim
- a Department of Endocrinology and Metabolism , School of Medicine, Kyung Hee University , Seoul , Republic of Korea
| | - Young Seol Kim
- a Department of Endocrinology and Metabolism , School of Medicine, Kyung Hee University , Seoul , Republic of Korea
- c Department of Internal Medicine , Chung Hospital , Seongnam-si , Gyeonggi-do , Republic of Korea
| | - Youngmi Kim Pak
- d Department of Physiology , Kyung Hee University, College of Medicine , Seoul , Republic of Korea
| | - Suk Chon
- a Department of Endocrinology and Metabolism , School of Medicine, Kyung Hee University , Seoul , Republic of Korea
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Liu Y, Cao Z, Zong W, Liu R. Interaction rule and mechanism of perfluoroalkyl sulfonates containing different carbon chains with human serum albumin. RSC Adv 2017. [DOI: 10.1039/c7ra02963b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
All three PFASs bind to HSA mainly through electrostatic forces and the toxicity decreases with the shortening of the carbon chain.
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Affiliation(s)
- Yang Liu
- School of Environmental Science and Engineering
- Shandong University
- China–America CRC for Environment & Health
- Jinan 250100
- P. R. China
| | - Zhaozhen Cao
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Wansong Zong
- College of Population, Resources and Environment
- Shandong Normal University
- Jinan 250014
- P. R. China
| | - Rutao Liu
- School of Environmental Science and Engineering
- Shandong University
- China–America CRC for Environment & Health
- Jinan 250100
- P. R. China
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Halsne R, Tandberg JI, Lobert VH, Østby GC, Thoen E, Ropstad E, Verhaegen S. Effects of perfluorinated alkyl acids on cellular responses of MCF-10A mammary epithelial cells in monolayers and on acini formation in vitro. Toxicol Lett 2016; 259:95-107. [PMID: 27511595 DOI: 10.1016/j.toxlet.2016.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 06/29/2016] [Accepted: 08/05/2016] [Indexed: 11/26/2022]
Abstract
Perfluorinated alkyl acids (PFAAs) are stable chemicals detected in tissue and serum from various species, including humans, and have been linked to adverse health outcomes. Experimental PFAA exposure in rodents has been associated with changes in mammary gland development. The estrogen receptor (ER)-negative human breast epithelial cell line, MCF-10A, can be grown as monolayer, but also has the ability to form three-dimensional acini in vitro, reflecting aspects of mammary glandular morphogenesis. Cells were exposed to five different PFAAs, perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), and perfluoroundecanoic acid (PFUnDA), both in monolayer and acini cultures. In monolayer cultures only the higher concentrations of PFOS, PFNA and PFDA (400-500μM) caused a significant increase in cell death, whereas PFOA and PFUnDA had no effect. Normal acini maturation was negatively impacted by PFOS, PFNA and PFDA already at the lowest concentration tested (0.6μM). Observed effects included loss of organization of the cell clusters and absence of a hollow lumen. Overall, this study demonstrated that PFAAs can interfere with cellular events related to normal development of glandular breast tissue through ER-independent mechanisms.
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Affiliation(s)
- Ruth Halsne
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine and Biosciences, Norwegian University of Life Sciences (NMBU), P.O. 8146 Dep., N-0033 Oslo, Norway.
| | - Julia Isabel Tandberg
- Department of Pharmaceutical Biosciences, School of Pharmacy, Oslo University, P.O. Box 1068, N-0316 Oslo, Norway
| | - Viola Hélène Lobert
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway
| | - Gunn Charlotte Østby
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine and Biosciences, Norwegian University of Life Sciences (NMBU), P.O. 8146 Dep., N-0033 Oslo, Norway
| | - Even Thoen
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine and Biosciences, Norwegian University of Life Sciences (NMBU), P.O. 8146 Dep., N-0033 Oslo, Norway; Norwegian Veterinary Institute, P.O. Box 750 Sentrum, N-0106 Oslo, Norway
| | - Erik Ropstad
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine and Biosciences, Norwegian University of Life Sciences (NMBU), P.O. 8146 Dep., N-0033 Oslo, Norway
| | - Steven Verhaegen
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine and Biosciences, Norwegian University of Life Sciences (NMBU), P.O. 8146 Dep., N-0033 Oslo, Norway
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Chen M, Qiang L, Pan X, Fang S, Han Y, Zhu L. In Vivo and in Vitro Isomer-Specific Biotransformation of Perfluorooctane Sulfonamide in Common Carp (Cyprinus carpio). Environ Sci Technol 2015; 49:13817-24. [PMID: 26053759 DOI: 10.1021/acs.est.5b00488] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Biotransformation of PFOS-precursors (PreFOS) may contribute significantly to the level of perfluorooctanesulfonate (PFOS) in the environment. Perfluorooctane sulfonamide (PFOSA) is one of the major intermediates of higher molecular weight PreFOS. Its further degradation to PFOS could be isomer specific and thereby explain unexpected high percentages of branched (Br-) PFOS isomers observed in wildlife. In this study, isomeric degradation of PFOSA was concomitantly investigated by in vivo and in vitro tests using common carp as an animal model. In the in vivo tests branched isomers of PFOSA and PFOS were eliminated faster than the corresponding linear (n-) isomers, leading to enrichment of n-PFOSA in the fish. In contrast, Br-PFOS was enriched in the fish, suggesting that Br-PFOSA isomers were preferentially metabolized to Br-PFOS over n-PFOSA. This was confirmed by the in vitro test. The exception was 1m-PFOSA, which could be the most difficult to be metabolized due to its α-branched structure, resulting in the deficiency of 1m-PFOS in the fish. The in vitro tests indicated that the metabolism mainly took place in the fish liver instead of its kidney, and it was mainly a Phase I reaction. The results may help to explain the special PFOS isomer profile observed in wildlife.
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Affiliation(s)
- Meng Chen
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, P. R. China
| | - Liwen Qiang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, P. R. China
| | - Xiaoyu Pan
- College of Marine Science of Engineering, Tianjin University of Science and Technology , Tianjin 300457, P. R. China
| | - Shuhong Fang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, P. R. China
| | - Yuwei Han
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, P. R. China
| | - Lingyan Zhu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, P. R. China
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Giménez-Bastida JA, Surma M, Zieliński H. In vitro evaluation of the cytotoxicity and modulation of mechanisms associated with inflammation induced by perfluorooctanesulfonate and perfluorooctanoic acid in human colon myofibroblasts CCD-18Co. Toxicol In Vitro 2015; 29:1683-91. [DOI: 10.1016/j.tiv.2015.07.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/29/2015] [Accepted: 07/01/2015] [Indexed: 12/11/2022]
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Yang J, Wang C, Nie X, Shi S, Xiao J, Ma X, Dong X, Zhang Y, Han J, Li T, Mao J, Liu X, Zhao J, Wu Q. Perfluorooctane sulfonate mediates microglial activation and secretion of TNF-α through Ca2+-dependent PKC-NF-кB signaling. Int Immunopharmacol 2015; 28:52-60. [DOI: 10.1016/j.intimp.2015.05.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 05/10/2015] [Accepted: 05/11/2015] [Indexed: 01/06/2023]
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Zou H, Liu X, Han T, Hu D, Wang Y, Yuan Y, Gu J, Bian J, Zhu J, Liu ZP. Salidroside Protects against Cadmium-Induced Hepatotoxicity in Rats via GJIC and MAPK Pathways. PLoS One 2015; 10:e0129788. [PMID: 26070151 PMCID: PMC4466396 DOI: 10.1371/journal.pone.0129788] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 05/13/2015] [Indexed: 12/29/2022] Open
Abstract
It is known that cadmium (Cd) induces cytotoxicity in hepatocytes; however, the underlying mechanism is unclear. Here, we studied the molecular mechanisms of Cd-induced hepatotoxicity in rat liver cells (BRL 3A) and in vivo. We observed that Cd treatment was associated with a time- and concentration-dependent decrease in the cell index (CI) of BRL 3A cells and cellular organelle ultrastructure injury in the rat liver. Meanwhile, Cd treatment resulted in the inhibition of gap junction intercellular communication (GJIC) and activation of mitogen-activated protein kinase (MAPK) pathways. Gap junction blocker 18-β-glycyrrhetinic acid (GA), administered in combination with Cd, exacerbated cytotoxic injury in BRL 3A cells; however, GA had a protective effect on healthy cells co-cultured with Cd-exposed cells in a co-culture system. Cd-induced cytotoxic injury could be attenuated by co-treatment with an extracellular signal-regulated kinase (ERK) inhibitor (U0126) and a p38 inhibitor (SB202190) but was not affected by co-treatment with a c-Jun N-terminal kinase (JNK) inhibitor (SP600125). These results indicate that ERK and p38 play critical roles in Cd-induced hepatotoxicity and mediate the function of gap junctions. Moreover, MAPKs induce changes in GJIC by controlling connexin gene expression, while GJIC has little effect on the Cd-induced activation of MAPK pathways. Collectively, our study has identified a possible mechanistic pathway of Cd-induced hepatotoxicity in vitro and in vivo, and identified the participation of GJIC and MAPK-mediated pathways in Cd-induced hepatotoxicity. Furthermore, we have shown that salidroside may be a functional chemopreventative agent that ameliorates the negative effects of Cd via GJIC and MAPK pathways.
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Affiliation(s)
- Hui Zou
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Xuezhong Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Tao Han
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Di Hu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Yi Wang
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Jiaqiao Zhu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
| | - Zong-ping Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, P.R. China
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Ruan T, Lin Y, Wang T, Liu R, Jiang G. Identification of Novel Polyfluorinated Ether Sulfonates as PFOS Alternatives in Municipal Sewage Sludge in China. Environ Sci Technol 2015; 49:6519-27. [PMID: 25961764 DOI: 10.1021/acs.est.5b01010] [Citation(s) in RCA: 176] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A 6:2 chlorinated polyfluorinated ether sulfonate (6:2 Cl-PFAES) with the trade name F-53B, is an alternative to perfluorooctanesulfonate (PFOS) in electroplating industry that is uniquely used in China. It was developed as a mist suppressant initially in the 1970s, but the environmental behaviors and potential adverse effects of the 6:2 Cl-PFAES have only recently been investigated. In this work, the occurrence and distribution of perfluoroalkyl sulfonate (PFSA), fluorotelomer sulfonate (FTSA), and PFAES analogues were investigated in municipal sewage sludge samples collected around China. Perfluorobutane, perfluorohexane, perfluorooctane, and perfluorodecanesulfonates, 6:2 and 8:2 FTSAs, and the emerging 6:2 Cl-PFAES were detected. Moreover, 8:2 and 10:2 Cl-PFAESs were identified for the first time as new polyfluorinated contaminants using high resolution mass spectrometry. These fluorinated analytes were further quantified with the aid of commercial and laboratory-purified standards. PFOS was the predominant contaminant with a geometric mean (GM) value of 3.19 ng/g dry weight (d.w.), which was subsequently followed by 6:2 Cl-PFAES and 8:2 Cl-PFAES (GM: 2.15 and 0.50 ng/g d.w., respectively). Both 6:2 and 8:2 Cl-PFAES were positively detected as the major components in the F-53B commercial product, and discrete 6:2 Cl-PFAES/8:2 Cl-PFAES ratios in the product and sludge samples might suggest 8:2 Cl-PFAES had enhanced sorption behavior in the sludge due to the increase in hydrophobicity.
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Affiliation(s)
- Ting Ruan
- †State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yongfeng Lin
- †State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Thanh Wang
- ‡Man-Technology-Environment (MTM) Research Centre, Örebro University, 702 81 Örebro, Sweden
| | - Runzeng Liu
- †State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guibin Jiang
- †State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Rodriguez-Jorquera IA, Kroll KJ, Toor GS, Denslow ND. Transcriptional and physiological response of fathead minnows (Pimephales promelas) exposed to urban waters entering into wildlife protected areas. Environ Pollut 2015; 199:155-165. [PMID: 25656232 DOI: 10.1016/j.envpol.2015.01.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 01/09/2015] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
The mission of protected areas is to conserve biodiversity and improve human welfare. To assess the effect of urban waters entering into protected areas, we performed 48-h whole-effluent exposures with fathead minnows, analyzing changes in steady state levels of mRNAs in the livers of exposed fish. Raw wastewater, treated city wastewater, and treated wastewater from a university were collected for exposures. All exposed fish showed altered mRNA levels of DNA damage-repair genes. Fish exposed to raw and treated wastewaters showed down-regulation of transcripts for key intermediates of cholesterol biosynthesis and elevated plasma cholesterol. The type of wastewater treatment influenced the response of gene transcription. Because of the relevance of some of the altered cellular pathways, we suggest that these effluents may cause deleterious effects on fish inside protected areas that receive these waters. Inclusion of research and mitigation efforts for this type of threat in protected areas management is advised.
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Affiliation(s)
- Ignacio A Rodriguez-Jorquera
- Interdisciplinary Ecology Program, School of Natural Resources and Environment, Soil and Water Science Department, University of Florida, USA; Department of Physiological Sciences, Center for Environmental and Human Toxicology, University of Florida, Gainesville, USA
| | - Kevin J Kroll
- Department of Physiological Sciences, Center for Environmental and Human Toxicology, University of Florida, Gainesville, USA
| | - Gurpal S Toor
- Soil & Water Quality Laboratory, Gulf Coast Research & Education Center, Institute of Food & Agricultural Sciences University of Florida, Wimauma, USA
| | - Nancy D Denslow
- Department of Physiological Sciences, Center for Environmental and Human Toxicology, University of Florida, Gainesville, USA.
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Eggers Pedersen K, Basu N, Letcher R, Greaves AK, Sonne C, Dietz R, Styrishave B. Brain region-specific perfluoroalkylated sulfonate (PFSA) and carboxylic acid (PFCA) accumulation and neurochemical biomarker responses in east Greenland polar bears (Ursus maritimus). Environ Res 2015; 138:22-31. [PMID: 25682255 DOI: 10.1016/j.envres.2015.01.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/16/2015] [Accepted: 01/20/2015] [Indexed: 05/24/2023]
Abstract
Perfluoroalkyl substances (PFASs) is a growing class of contaminants in the Arctic environment, and include the established perfluorinated sulfonates (PFSAs; especially perfluorooctane sulfonate (PFOS)) and carboxylic acids (PFCAs). PFSAs and PFCAs of varying chain length have been reported to bioaccumulate in lipid rich tissues of the brain among other tissues such as liver, and can reach high concentrations in top predators including the polar bear. PFCA and PFSA bioaccummulation in the brain has the potential to pose neurotoxic effects and therefore we conducted a study to investigate if variations in neurochemical transmitter systems i.e. the cholinergic, glutaminergic, dopaminergic and GABAergic, could be related to brain-specific bioaccumulation of PFASs in East Greenland polar bears. Nine brain regions from nine polar bears were analyzed for enzyme activity (monoamine oxidase (MAO), acetylcholinesterase (AChE) and glutamine synthetase (GS)) and receptor density (dopamine-2 (D2), muscarinic cholinergic (mAChR) and gamma-butyric acid type A (GABA-A)) along with PFSA and PFCA concentrations. Average brain ∑PFSA concentration was 25ng/g ww where PFOS accounted for 91%. Average ∑PFCA concentration was 88ng/g ww where PFUnDA, PFDoDA and PFTrDA combined accounted for 79%. The highest concentrations of PFASs were measured in brain stem, cerebellum and hippocampus. Correlative analyses were performed both across and within brain regions. Significant positive correlations were found between PFASs and MAO activity in occipital lobe (e.g. ∑PFCA; rp=0.83, p=0.041, n=6) and across brain regions (e.g. ∑PFCA; rp=0.47, p=0.001, ∑PFSA; rp=0.44, p>0.001; n=50). GABA-A receptor density was positively correlated with two PFASs across brain regions (PFOS; rp=0.33, p=0.02 and PFDoDA; rp=0.34, p=0.014; n=52). Significant negative correlations were found between mAChR density and PFASs in cerebellum (e.g. ∑PFCA; rp=-0.95, p=0.013, n=5) and across brain regions (e.g. ∑PFCA; rp=-0.40, p=0.003, ∑PFSA; rp=-0.37, p=0.007; n=52). AChE activity and D2 density were negatively correlated with single PFCAs in several brain regions, whereas GS activity was positively correlated with PFASs primarily in occipital lobe. Results from the present study support the hypothesis that PFAS concentrations in polar bears from East Greenland have exceeded the threshold limits for neurochemical alterations. It is not known whether the observed alterations in neurochemical signaling are currently having negative effects on neurochemistry in East Greenland polar bears. However given the importance of these systems in cognitive processes and motor function, the present results indicate an urgent need for a better understanding of neurochemical effects of PFAS exposure to wildlife.
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Affiliation(s)
- Kathrine Eggers Pedersen
- Toxicology Laboratory, Section of Advanced Drug Analysis, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Niladri Basu
- Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Quebec, Canada
| | - Robert Letcher
- Wildlife and Landscape Science Directorate, Science and Technology Branch, Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON, Canada
| | - Alana K Greaves
- Wildlife and Landscape Science Directorate, Science and Technology Branch, Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON, Canada
| | - Christian Sonne
- Aarhus University, Faculty of Science and Technology, Department of Bioscience, Arctic Research Centre, Roskilde, Denmark
| | - Rune Dietz
- Aarhus University, Faculty of Science and Technology, Department of Bioscience, Arctic Research Centre, Roskilde, Denmark
| | - Bjarne Styrishave
- Toxicology Laboratory, Section of Advanced Drug Analysis, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Zou H, Zhuo L, Han T, Hu D, Yang X, Wang Y, Yuan Y, Gu J, Bian J, Liu X, Liu Z. Autophagy and gap junctional intercellular communication inhibition are involved in cadmium-induced apoptosis in rat liver cells. Biochem Biophys Res Commun 2015; 459:713-9. [PMID: 25778869 DOI: 10.1016/j.bbrc.2015.03.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 03/06/2015] [Indexed: 02/07/2023]
Abstract
Cadmium (Cd) is known to induce hepatotoxicity, yet the underlying mechanism of how this occurs is not fully understood. In this study, Cd-induced apoptosis was demonstrated in rat liver cells (BRL 3A) with apoptotic nuclear morphological changes and a decrease in cell index (CI) in a time- and concentration-dependent manner. The role of gap junctional intercellular communication (GJIC) and autophagy in Cd-induced apoptosis was investigated. Cd significantly induced GJIC inhibition as well as downregulation of connexin 43 (Cx43). The prototypical gap junction blocker carbenoxolone disodium (CBX) exacerbated the Cd-induced decrease in CI. Cd treatment was also found to cause autophagy, with an increase in mRNA expression of autophagy-related genes Atg-5, Atg-7, Beclin-1, and microtubule-associated protein light chain 3 (LC3) conversion from cytosolic LC3-I to membrane-bound LC3-II. The autophagic inducer rapamycin (RAP) prevented the Cd-induced CI decrease, while the autophagic inhibitor chloroquine (CQ) caused a further reduction in CI. In addition, CBX promoted Cd-induced autophagy, as well as changes in expression of Atg-5, Atg-7, Beclin-1 and LC3. CQ was found to block the Cd-induced decrease in Cx43 and GJIC inhibition, whereas RAP had opposite effect. These results demonstrate that autophagy plays a protective role during Cd-induced apoptosis in BRL 3A cells during 6 h of experiment, while autophagy exacerbates Cd-induced GJIC inhibition which has a negative effect on cellular fate.
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Affiliation(s)
- Hui Zou
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Liling Zhuo
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong, 277160, PR China
| | - Tao Han
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Di Hu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Xiaokang Yang
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Yi Wang
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Xuezhong Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China.
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Zou H, Hu D, Han T, Zhao H, Xie J, Liu X, Wang Y, Gu J, Yuan Y, Bian J, Liu Z. Salidroside ameliorates Cd-induced calcium overload and gap junction dysfunction in BRL 3A rat liver cells. Biol Trace Elem Res 2015; 164:90-8. [PMID: 25524521 DOI: 10.1007/s12011-014-0201-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 12/02/2014] [Indexed: 01/25/2023]
Abstract
It is known that cadmium (Cd) induces cytotoxicity via Ca(2+) signaling, although the underlying mechanism is unclear. Here, we studied the molecular mechanisms of Cd-induced cytotoxicity in BRL 3A cells, a rat liver cell line. We observed that Cd treatment was associated with a time-dependent decrease in cell index (CI) in BRL 3A cells. Mechanistically, we observed that Cd exposure was associated with decreased expression of Cx43, P-Cx43, and Cx32. Specifically, Cx43 was decreased at the site of cell-cell junctions at the cell membrane, corresponding to a decrease in gap junctional intercellular connections (GJICs). We also found that Cd triggered a rise in the intracellular free Ca(2+) concentration ([Ca(2+)]i), and the intracellular calcium chelator 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid tetrakis, acetoxymethyl ester (BAPTA-AM), prevented the Cd-induced decrease in CI. On the other hand, the gap junction blocker 18-β-glycyrrhetinic acid (GA) and the endoplasmic reticulum Ca(2+)-ATPase inhibitor thapsigargin exacerbated cytotoxic injury induced by Cd via further elevating [Ca(2+)]i, The extracellular calcium chelator ethylene glycol tetraacetic acid could partly attenuate Cd-induced calcium elevation but had little effect on GA combined Cd. Furthermore, salidroside as a protective agent prevented Cd-induced GJIC inhibition and calcium overload. Our findings suggest that Cd triggers elevation of [Ca(2+)]i via mainly stimulating Ca(2+) release from intracellular Ca(2+) storage organelles and inhibiting GJIC, causing cytotoxic injury, and salidroside could be used to prevent Cd-induced cytotoxicity.
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Affiliation(s)
- Hui Zou
- College of Veterinary Medicine, Yangzhou University, 88 South University Ave., Yangzhou, Jiangsu, 225009, People's Republic of China
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Zou H, Liu X, Han T, Hu D, Yuan Y, Gu J, Bian J, Liu Z. Alpha-lipoic acid protects against cadmium-induced hepatotoxicity via calcium signalling and gap junctional intercellular communication in rat hepatocytes. J Toxicol Sci 2015; 40:469-77. [DOI: 10.2131/jts.40.469] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Hui Zou
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
| | - Xuezhong Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
| | - Tao Han
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
| | - Di Hu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, China
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Zhang Q, Lu M, Dong X, Wang C, Zhang C, Liu W, Zhao M. Potential estrogenic effects of phosphorus-containing flame retardants. Environ Sci Technol 2014; 48:6995-7001. [PMID: 24844797 DOI: 10.1021/es5007862] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
As the substitute of polybrominated diphenyl ethers (PBDEs), further assessments about the potential ecological safety and health risks of phosphorus-containing flame retardants (PFRs) are required because the worldwide demand for PFRs has been increasing every year. In this study, we examined the agonistic/antagonistic activity of a group of PFRs by three in vitro models (luciferase reporter gene assay, yeast two-hybrid assay, and E-screen assay). Molecule docking was used to further explain the interactions between ERα and PFRs. Data from luciferase reporter gene analysis showed three members of the nine tested PFRs significantly induced estrogenic effects, with the order of TPP > TCP > TDCPP, while TCEP and TEHP have remarkable antiestrogenic properties with calculated REC20 and RIC20 values of 10(-6) M or lower. Results from the luciferase reporter gene method are generally consistent with results obtained from the yeast two-hybrid assay and E-screen, except for the positive estrogenic activity of TBP in E-screen testing. Docking results showed that binding between ligands and ERα was stabilized by hydrophobic interactions. As a proposed alternative for brominated flame retardant, PFRs may have anti/estrogenic activity via ERα at the low dose typical of residue in environmental matrix or animals. PFRs with a short chain, halogen, and benzene ring in the substituent group tend to be estrogenic. Our research suggests that comprehensive evaluations, including health and ecological assessments, are required in determining whether PFRs are preferable as an emerging industrial substitute.
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Affiliation(s)
- Quan Zhang
- College of Biological and Environmental Engineering, Zhejiang University of Technology , Hangzhou 310032, China
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Iwai H, Hoberman AM. Oral (Gavage) Combined Developmental and Perinatal/Postnatal Reproduction Toxicity Study of Ammonium Salt of Perfluorinated Hexanoic Acid in Mice. Int J Toxicol 2014; 33:219-237. [DOI: 10.1177/1091581814529449] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The reproductive toxicity potential of Ammonium Salt of Perfluorinated Hexanoic Acid (PFHxA Ammonium Salt) in pregnant Crl: CD1(ICR) mice was investigated. Twenty females/group were administered the test substance or vehicle once daily from gestation day 6 through 18. Phase 1 doses: 0, 100, 350, and 500 mg/kg/d; phase 2: 0, 7, 35, and 175 mg/kg/d. Parameters evaluated include mortality, viability, body weights, clinical signs, abortions, premature deliveries, pregnancy and fertility, litter observations, maternal behavior, and sexual maturity in the F1 generation. The level of PFHxA Ammonium Salt was measured in the liver of F0 and F1 mice. At doses of 350 and 500 mg/kg/d maternal mortalities, excess salivation and changes in body weight gains occurred. Pup body weights were reduced on postpartum day (PPD) 0 in all the dosage groups, but persisted only in the 350 and 500 mg/kg/d groups. Additional effects at 300 and 500 mg/kg/d included stillbirths, reductions in viability indices, and delays in physical development. Levels of PFHxA Ammonium Salt in the livers of the 100 mg/kg/d dams were all below the lower limit of quantization (0.02 µg/mL); in the 350 mg/kg/d group, 3 of the 8 samples had quantifiable analytical results. In phase 2 no PFHxA Ammonium Salt was found in the liver. Adverse effects occurred only in the 175 mg/kg/d group and consisted of increased stillborn pups, pups dying on PPD 1, and reduced pup weights on PPD 1. Based on these data, the maternal and reproductive no observable adverse effect level of PFHxA Ammonium Salt is 100 mg/kg/d.
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Affiliation(s)
| | - Alan M. Hoberman
- Charles River Laboratories, Preclinical Services, Horsham, PA, USA
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48
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Manzetti S, van der Spoel ER, van der Spoel D. Chemical Properties, Environmental Fate, and Degradation of Seven Classes of Pollutants. Chem Res Toxicol 2014; 27:713-37. [DOI: 10.1021/tx500014w] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sergio Manzetti
- Uppsala
Center for Computational Chemistry, Science for Life Laboratory, Department
of Cell and Molecular Biology, University of Uppsala, Box 596, SE-75124 Uppsala, Sweden
- Fjordforsk A.S., Midtun, 6894 Vangsnes, Norway
| | - E. Roos van der Spoel
- Uppsala
Center for Computational Chemistry, Science for Life Laboratory, Department
of Cell and Molecular Biology, University of Uppsala, Box 596, SE-75124 Uppsala, Sweden
| | - David van der Spoel
- Uppsala
Center for Computational Chemistry, Science for Life Laboratory, Department
of Cell and Molecular Biology, University of Uppsala, Box 596, SE-75124 Uppsala, Sweden
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49
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Igarashi I, Maejima T, Kai K, Arakawa S, Teranishi M, Sanbuissho A. Role of connexin 32 in acetaminophen toxicity in a knockout mice model. Exp Toxicol Pathol 2014; 66:103-10. [PMID: 24263089 DOI: 10.1016/j.etp.2013.10.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Revised: 09/03/2013] [Accepted: 10/21/2013] [Indexed: 01/28/2023]
Abstract
Gap junctional intercellular communication (GJIC), by which glutathione (GSH) and inorganic ions are transmitted to neighboring cells, is recognized as being largely involved in toxic processes of chemicals. We examined acetaminophen (APAP)-induced hepatotoxicity clinicopathologically using male wild-type mice and mice lacking the gene for connexin32, a major gap junction protein in the liver [knockout (Cx32KO) mice]. When APAP was intraperitoneally administered at doses of 100, 200, or 300mg/kg, hepatic centrilobular necrosis with elevated plasma aminotransferase activities was observed in wild-type mice receiving 300mg/kg, and in Cx32KO mice given 100mg/kg or more. At 200mg/kg or more, hepatic GSH and GSSG contents decreased significantly and the effect was more severe in wild-type mice than in Cx32KO mice. On the other hand, markedly decreased GSH staining was observed in the hepatic centrilobular zones of Cx32KO mice compared to that of wild-type mice. These results demonstrate that Cx32KO mice are more susceptible to APAP hepatotoxicity than wild-type mice, and indicate that the distribution of GSH of the centrilobular zones in the hepatic lobules, rather than GSH and GSSG contents in the liver, is important in APAP hepatotoxicity. In conclusion, Cx32 protects against APAP-induced hepatic centrilobular necrosis in mice, which may be through the GSH transmission to neighboring hepatocytes by GJIC.
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Affiliation(s)
- Isao Igarashi
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co. Ltd., Fukuroi, Shizuoka 437-0065, Japan.
| | - Takanori Maejima
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co. Ltd., Fukuroi, Shizuoka 437-0065, Japan
| | - Kiyonori Kai
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co. Ltd., Fukuroi, Shizuoka 437-0065, Japan
| | - Shingo Arakawa
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co. Ltd., Fukuroi, Shizuoka 437-0065, Japan
| | - Munehiro Teranishi
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co. Ltd., Fukuroi, Shizuoka 437-0065, Japan
| | - Atsushi Sanbuissho
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co. Ltd., Fukuroi, Shizuoka 437-0065, Japan
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50
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Karakas-Celik S, Aras N. An in-vitro investigation of the effect of perfluorooctane sulphonate on cell lines of embryonic origin. Mol Biol Rep 2014; 41:3755-9. [PMID: 24535269 DOI: 10.1007/s11033-014-3240-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 02/06/2014] [Indexed: 10/25/2022]
Abstract
Fluorinated organic compounds, such as perfluorooctane sulfonate, are stable chemicals with a wide range of industrial applications. The potential toxicity of perfluorooctane sulfonate is not well characterized, and even less known are the mechanisms underlying its toxic effects. Perfluorooctane sulfonate change of inner mitochondrial membrane permeability has been implicated as a potential mechanism of toxicity. In this study, we research that perfluorooctane sulfonate effects the expression of Apaf1 and Caspase3 genes in the amnion and fetal lung cell line that initiate the cells to undergo apoptosis. The expression of Caspase3 and Apaf1 was determined by using quantitative RT-PCR. In the study there is significant increase in expression of Caspase3 and Apaf1 in amnion and fetal lung cell line exposed to high dose (p < 0.001, p = 0.004). Also there is significant increase in cell lines exposed for a long period of time to perfluorooctane sulfonate (p = 0.001). But no significant increase was seen in the low doses and exposed for a short period of time. In conclusion, apoptotic gene expression is increase in cells exposed perfluorooctane sulfonate by dose dependent manner was determined. So this work is the first study examines the apoptotic effects of perfluorooctane sulfonate in human embryonic cells it will lead the way to the other topical studies.
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Affiliation(s)
- Sevim Karakas-Celik
- Department of Medical Biology, Faculty of Medicine, Bulent Ecevit University, Zonguldak, Turkey,
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