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Passaponti S, Manzan Martins C, Cresti L, Romagnoli R, Paulesu L, Ietta F, Ermini L. Lysosome dynamics during human endometrial stromal cells decidualization: effect of para-nonylphenol. Am J Physiol Cell Physiol 2024; 327:C113-C121. [PMID: 38738312 DOI: 10.1152/ajpcell.00604.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/11/2024] [Accepted: 04/28/2024] [Indexed: 05/14/2024]
Abstract
During the process of decidualization, the stromal cells of the endometrium change dynamically to create a favorable environment for embryo implantation. Lysosome activity has often been associated with physiological changes in the endometrium during the preimplantation period and early pregnancy. In this study, the effect of para-nonylphenol (p-NP), an endocrine disruptor, on human immortalized endometrial stromal cells (tHESCs) was investigated. After exposure to p-NP (1 nM and 1 pM), the cells were examined for the decidualization markers connexin-43, insulin like growth factor binding protein 1 (IGFBP1), and prolactin. In addition, the effect of p-NP on lysosome biogenesis and exocytosis was investigated by examining the expression and localization of the transcription factor EB (TFEB) and that of the lysosomal-associated membrane protein 1 (LAMP-1). Finally, we evaluated the effect of p-NP on extracellular matrix (ECM) remodeling using a fibronectin assay. Our results showed that p-NP reduced the expression of prolactin protein, increased the nuclear localization of TFEB, and induced the increase and translocation of the lysosomal protein LAMP-1 to the membrane of tHESCs. The data indicate an impairment of decidualization and suggest an increase in lysosomal biogenesis and exocytosis, which is supported by the higher release of active cathepsin D by tHESCs. Given the importance of cathepsins in the processing and degradation of the ECM during trophoblast invasiveness and migration into the decidua, our results appear to be clear evidence of the negative effects of p-NP on endometrial processes that are fundamental to reproductive success and the establishment of pregnancy.NEW & NOTEWORTHY Endocrine disruptors, such as para-nonylphenol, affect the decidualization of human endometrial stromal cells with an impact on decidualization itself, lysosome biogenesis and exocytosis, and extracellular matrix remodeling. All these alterations may negatively impact embryo implantation with the success of reproduction and the establishment of pregnancy.
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Affiliation(s)
- Sofia Passaponti
- Department of Life Sciences, University of Siena, Siena, Italy
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | | | - Laura Cresti
- Department of Life Sciences, University of Siena, Siena, Italy
| | | | - Luana Paulesu
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Francesca Ietta
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Leonardo Ermini
- Department of Life Sciences, University of Siena, Siena, Italy
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Wang L, Miao J, Ding M, Zhang W, Pan L. Exploring the mechanism of nonylphenol-induced ovarian developmental delay of manila clams, Ruditapes philippinarum: Applying RNAi to toxicological analysis. CHEMOSPHERE 2024; 356:141905. [PMID: 38579946 DOI: 10.1016/j.chemosphere.2024.141905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/07/2024]
Abstract
Nonylphenol (NP) contamination in the coastal environment of China poses ecological risks to aquatic organisms. However, the endocrine disruptive impacts of NP on bivalves, particularly on ovarian development, remain poorly understood. In this study, Manila clams Ruditapes philippinarum at the developing stage of gonad were exposed to 1.0 μg/L NP for 21 days. Utilizing RNA interference (RNAi) to suppress ER gene expression, we observed a delay in ovarian development as evidenced by histological observations under both NP and NPRi (NP with ER-RNAi) treatment, with Vtg elevation exclusive to the NP group. Comprehensive analyses encompassing transcriptomics, real-time quantitative PCR, and steroid hormone measurement revealed significant alterations in aldosterone synthesis, estrogen signaling, and thyroid hormone synthesis. These pathways showed similar perturbations in both NP and NPRi groups compared to controls. Notably, the NPRi group exhibited distinct enrichment in PPAR and insulin signaling pathways, may implicating these in ER function suppression. Steroid hormone biosynthesis was notably reduced in both treatments, pointing to a profound impact on hormone synthesis. The contrast between in vivo and in vitro findings suggests that NP's detrimental effects on ovarian development may primarily involve neuroendocrine regulation of steroidogenesis. This investigation highlights the complex dynamics of NP-induced endocrine disruption in bivalves, emphasizing the pivotal role of ER and associated pathways.
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Affiliation(s)
- Lu Wang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Jingjing Miao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China.
| | - Min Ding
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China; Marine Environmental Monitoring Central Station of Qinhuangdao, SOA, PR China
| | - Wei Zhang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
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Zhao Y, Ji J, Wu Y, Chen S, Xu M, Cao X, Liu H, Wang Z, Bi H, Guan G, Tang R, Tao H, Zhang H. Nonylphenol and its derivatives: Environmental distribution, treatment strategy, management and future perspectives. CHEMOSPHERE 2024; 352:141377. [PMID: 38346514 DOI: 10.1016/j.chemosphere.2024.141377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/17/2024] [Accepted: 02/02/2024] [Indexed: 02/20/2024]
Abstract
In recent years, emerging pollutants, including nonylphenol (NP) and nonylphenol ethoxylate (NPE), have become a prominent topic. These substances are also classified as persistent organic pollutants. NP significantly affects the hormone secretion of organisms and exhibits neurotoxicity, which can affect the human hippocampus. Therefore, various countries are paying increased attention to NP regulation. NPEs are precursors of NPs and are widely used in the manufacture of various detergents and lubricants. NPEs can easily decompose into NPs, which possess strong biological and environmental toxicity. This review primarily addresses the distribution, toxicity mechanisms and performance, degradation technologies, management policies, and green alternative reagents of NPs and NPEs. Traditional treatment measures have been unable to completely remove NP from wastewater. With the progressively tightening management and regulatory policies, identifying proficient and convenient treatment methods and a sustainable substitute reagent with comparable product effectiveness is crucial.
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Affiliation(s)
- Yuqing Zhao
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Jie Ji
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Yao Wu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Shiqi Chen
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Mengyao Xu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Xiang Cao
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Hanlin Liu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Zheng Wang
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Hengyao Bi
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Guian Guan
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Ruixi Tang
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Hong Tao
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - He Zhang
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China.
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Teixeira RM, Sakamoto IK, Motteran F, Camargo FP, Varesche MBA. Removal of nonylphenol ethoxylate surfactant in batch reactors: emphasis on methanogenic potential and microbial community characterization under optimized conditions. ENVIRONMENTAL TECHNOLOGY 2024; 45:1343-1357. [PMID: 36352347 DOI: 10.1080/09593330.2022.2143287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
ABSTRACTNonylphenol ethoxylate (NPE) is an endocrine-disrupting chemical that has bioaccumulative, persistent and toxic characteristics in different environmental matrices and is difficult to remove in sewage treatment plants. In this study, the effects of the initial concentration of NPE (0.2 ± 0.03 - 3.0 ± 0.02 mg. L-1) and ethanol (73.9 ± 5.0-218.6 ± 10.6 mg. L-1) were investigated using factorial design. Assays were carried out in anaerobic batch reactors, using the Zinder basal medium, yeast extract (200 mg. L-1), vitamin solution and sodium bicarbonate (10% v/v). The optimal conditions were 218.56 mg.L-1 of ethanol and 1596.51 µg.L-1 of NPE, with 92% and 88% of NPE and organic matter removal, respectively, and methane yield (1689.8 ± 59.6 mmol) after 450 h of operation. In this condition, bacteria potentially involved in the degradation of this surfactant were identified in greater relative abundance, such as Acetoanaerobium (1.68%), Smithella (1.52%), Aminivibrio (0.91%), Petrimonas (0.57%) and Enterobacter (0.47%), as well as archaea Methanobacterium and Methanoregula, mainly involved in hydrogenotrophic pathway.
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Affiliation(s)
- Rômulo Mota Teixeira
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
| | - Fabrício Motteran
- Department of Civil and Environmental Engineering, Federal University of Pernambuco, Recife, Brazil
| | - Franciele Pereira Camargo
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
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Merrill AK, Sobolewski M, Susiarjo M. Exposure to endocrine disrupting chemicals impacts immunological and metabolic status of women during pregnancy. Mol Cell Endocrinol 2023; 577:112031. [PMID: 37506868 PMCID: PMC10592265 DOI: 10.1016/j.mce.2023.112031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/12/2023] [Accepted: 07/24/2023] [Indexed: 07/30/2023]
Affiliation(s)
- Alyssa K Merrill
- Department of Environmental Medicine, University of Rochester School of Medicine, Rochester, NY, USA
| | - Marissa Sobolewski
- Department of Environmental Medicine, University of Rochester School of Medicine, Rochester, NY, USA
| | - Martha Susiarjo
- Department of Environmental Medicine, University of Rochester School of Medicine, Rochester, NY, USA.
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Al Rashed N, Gerlach C, Guenther K. Determination of Nonylphenol in Selected Foods and Identification of Single Isomers in a Coffee Sample by Comprehensive Two-Dimensional Gas Chromatography-Time of Flight Mass Spectrometry. ANAL LETT 2023. [DOI: 10.1080/00032719.2023.2180018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Luconi M, Sogorb MA, Markert UR, Benfenati E, May T, Wolbank S, Roncaglioni A, Schmidt A, Straccia M, Tait S. Human-Based New Approach Methodologies in Developmental Toxicity Testing: A Step Ahead from the State of the Art with a Feto-Placental Organ-on-Chip Platform. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15828. [PMID: 36497907 PMCID: PMC9737555 DOI: 10.3390/ijerph192315828] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/20/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Developmental toxicity testing urgently requires the implementation of human-relevant new approach methodologies (NAMs) that better recapitulate the peculiar nature of human physiology during pregnancy, especially the placenta and the maternal/fetal interface, which represent a key stage for human lifelong health. Fit-for-purpose NAMs for the placental-fetal interface are desirable to improve the biological knowledge of environmental exposure at the molecular level and to reduce the high cost, time and ethical impact of animal studies. This article reviews the state of the art on the available in vitro (placental, fetal and amniotic cell-based systems) and in silico NAMs of human relevance for developmental toxicity testing purposes; in addition, we considered available Adverse Outcome Pathways related to developmental toxicity. The OECD TG 414 for the identification and assessment of deleterious effects of prenatal exposure to chemicals on developing organisms will be discussed to delineate the regulatory context and to better debate what is missing and needed in the context of the Developmental Origins of Health and Disease hypothesis to significantly improve this sector. Starting from this analysis, the development of a novel human feto-placental organ-on-chip platform will be introduced as an innovative future alternative tool for developmental toxicity testing, considering possible implementation and validation strategies to overcome the limitation of the current animal studies and NAMs available in regulatory toxicology and in the biomedical field.
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Affiliation(s)
- Michaela Luconi
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
- I.N.B.B. (Istituto Nazionale Biostrutture e Biosistemi), Viale Medaglie d’Oro 305, 00136 Rome, Italy
| | - Miguel A. Sogorb
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Avenida de la Universidad s/n, 03202 Elche, Spain
| | - Udo R. Markert
- Placenta Lab, Department of Obstetrics, University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany
| | - Emilio Benfenati
- Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy
| | - Tobias May
- InSCREENeX GmbH, Inhoffenstr. 7, 38124 Braunschweig, Germany
| | - Susanne Wolbank
- Ludwig Boltzmann Institut for Traumatology, The Research Center in Cooperation with AUVA, Austrian Cluster for Tissue Regeneration, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Alessandra Roncaglioni
- Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy
| | - Astrid Schmidt
- Placenta Lab, Department of Obstetrics, University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany
| | - Marco Straccia
- FRESCI by Science&Strategy SL, C/Roure Monjo 33, Vacarisses, 08233 Barcelona, Spain
| | - Sabrina Tait
- Centre for Gender-Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
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Impact of Nonylphenols and Polyhalogenated Compounds in Follicular Fluid on the Outcome of Intracytoplasmic Sperm Injection. Reprod Sci 2021; 28:2118-2128. [PMID: 33620705 DOI: 10.1007/s43032-021-00472-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 01/03/2021] [Indexed: 01/17/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) interfere with the mammalian hormone system and alter its endo- and paracrine regulation. The goal of the present study was to examine the presence of 14 EDCs, including the technical mixture of nonylphenols and Mirex, in human follicular fluid (FF) and to find a potential correlation between endocrine active substances and a possible impact on female fertility. Furthermore, potential sources of EDC exposition regarding patients' lifestyle and socioeconomic factors were investigated. Human FF was collected from a total of 210 women undergoing intracytoplasmic sperm injection-treatment cycles because of male subfertility. The presence of EDCs was analyzed using gas chromatography coupled with mass spectrometry. Thirteen of the 14 investigated EDCs were present in every FF sample; compounds with the highest concentrations in FF were nonylphenol and Mirex. Nearly all kinds of EDCs led to significantly reduced maturation and fertilization rate. No significant influence of EDC concentration on the clinical pregnancy rate was observed for neither of the analyzed EDCs. Patients who obtained their clothes and textiles at fashion discounters displayed a higher amount of EDCs in their FF. In contrast, patients' residential area, source of food products, and nicotine or caffeine consumed were not associated with EDC accumulation. Clinicaltrials.gov NCT01385605 (11 July 2011).
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Lotfi M, Hasanpour AH, Moghadamnia AA, Kazemi S. The Investigation into Neurotoxicity Mechanisms of Nonylphenol: A Narrative Review. Curr Neuropharmacol 2021; 19:1345-1353. [PMID: 33213348 PMCID: PMC8719294 DOI: 10.2174/1570159x18666201119160347] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/07/2020] [Accepted: 10/14/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Nonylphenol (NP), a chemical compound widely used in industry, is the result of the nonylphenol ethoxylate decomposition and it is known as an estrogen-like compound. Numerous studies and researches have shown that it has many destructive functions of various organs such as the brain. This toxicant causes oxidative stress in the cortex and hippocampus cells, which are two essential regions to preserve memory and learning in the brain. METHODS This review examines recent findings to better understanding the mechanisms of NP neurotoxicity. We used Scopus, Google Scholar, and PubMed databases to find articles focused on the destructive effects of NP on the oxidative stress pathway and its defense mechanisms. RESULTS NP has potential human health hazards associated with gestational, peri- and postnatal exposure. NP can disrupt brain homeostasis in different ways, such as activation of inflammatory factors in brain especially in hippocampus and cortex, disruption of the cell cycle, changes in neuron, dendrites and synapses morphology, disruption of extra and intracellular calcium ion balance and also memory and learning disorders.
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Affiliation(s)
| | | | | | - Sohrab Kazemi
- Address correspondence to this author at the Cellular and Molecular Biology Research Center, Health Research Center, Babol University of Medical Sciences, Babol, Iran, Tel: +98.9111162119; Fax: +98.1132207918; E-mail:
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Adibi JJ, Layden AJ, Yin Q, Xun X, Peddada S, Birru RL. A toolkit for the application of placental-fetal molecular biomarkers in epidemiologic studies of the fetal origins of chronic disease. CURR EPIDEMIOL REP 2020; 8:20-31. [PMID: 33777648 DOI: 10.1007/s40471-020-00258-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Purpose of review In this review, we provide essential background knowledge and an analytical framework for the application of placental-fetal molecular biomarkers in fetal origins chronic disease epidemiology. The widely available and highly quantitative placental hormone human chorionic gonadotropin (hCG) is used as an example. hCG is currently used for diagnosing fetal genetic disorders; yet it can and should be expanded to understanding the fetal origins of chronic diseases. We provide justification and methods to do this. Recent findings Ten papers published in the last 5 years were identified with supportive findings relevant to the application of biomarkers of hCG in epidemiologic studies on the developmental origins of health and disease (DOHaD). Summary There is increasing and consistent evidence that placental-fetal biomarkers may be highly informative in observational studies, as exemplified by hCG, with the correct approaches for measurement and data analysis.
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Affiliation(s)
- Jennifer J Adibi
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
| | - Alexander J Layden
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
| | - Qing Yin
- Department of Biostatistics, University of Pittsburgh Graduate School of Public Health
| | - Xiaoshuang Xun
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
| | - Shyamal Peddada
- Department of Biostatistics, University of Pittsburgh Graduate School of Public Health
| | - Rahel L Birru
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
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11
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Dornelles HDS, Motteran F, Sakamoto IK, Silva EL, Varesche MBA. 4-Nonylphenol degradation changes microbial community of scale-up Anaerobic Fluidized Bed Reactor. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 267:110575. [PMID: 32349961 DOI: 10.1016/j.jenvman.2020.110575] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/10/2020] [Accepted: 04/04/2020] [Indexed: 06/11/2023]
Abstract
Nonylphenol Ethoxylate (NPe) is a nonionic surfactant widely applied in domestic and industrial uses and its degradation generates the endocrine disruptor 4-Nonylphenol (4-NP). The effects of this compound in biological sewage treatment are uncertain, especially in anaerobic systems. The aim of this study was to assess the 4-NP removal and degradation in scale-up (20 L) Anaerobic Fluidized Bed Reactor (AFBR) filled with sand as support material, operated with Hydraulic Retention Time (HRT) of 18 h, fed with synthetic sewage plus 4-NP, performed in four phases named Phase I (894 mg COD L-1), Phase II (878 mg COD L-1, 127 μg 4-NP L-1), Phase III (940 mg COD L-1, 270 μg 4-NP L-1) and Phase IV (568 mg COD L-1, 376 μg 4-NP L-1). 4-NP did not affect reactor stability and organic matter removal remained stable at 94%. Highest 4-NP removal (78%) occurred for highest 4-NP influent (Phase IV), which resulted from biomass adaptation in the presence of ethanol. Through the 4-NP total mass balance, about 70% was biodegraded and 1% adsorbed on the sand bed. 4-NP addition promoted selection of microbial consortium strongly linked to aromatic compounds and surfactants degradation such as Geothrix, Holophaga, Aeromonas, Pelobacter, Pseudomonas, Delftia.
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Affiliation(s)
- Henrique de Souza Dornelles
- Department of Hydraulics and Sanitation, School of Engineering (EESC), University of São Paulo (USP), Bloco 4-F, Av. João Dagnone, 1100 Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Fabrício Motteran
- Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering (EESC), University of São Paulo (USP), Bloco 4-F, Av. João Dagnone, 1100 Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, Km 235, SP 310, 13565-905, São Carlos, São Paulo, Brazil.
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering (EESC), University of São Paulo (USP), Bloco 4-F, Av. João Dagnone, 1100 Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
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12
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Hussein AM, Sina M. p-Nonylphenol Impairment of Osteogenic Differentiation of Mesenchymal Stem Cells was Found to be Due to Oxidative Stress and Down-Regulation of RUNX2 and BMP. Endocr Metab Immune Disord Drug Targets 2020; 20:1336-1346. [PMID: 32368982 DOI: 10.2174/1871530320666200505114058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/02/2020] [Accepted: 03/09/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVES Previously, it was found that the para-nonylphenol (p-NP) impairs the osteogenic differentiation of rat bone marrow mesenchymal stem cells (rBMSCs); thus the aim of the present study was to evaluate the mechanism of the impairment. METHODS rBMSCs after 3rd passage cultured in osteogenic media in the presence of 0, 0.5 and 2.5 μM p-NP for 5, 10, 15 and 20 days. The study investigated the viability of the cells using MTT assays. The mineralization was studied using Alizarin red quantification analysis. Using a flame-photometer, the electrolytes (sodium and potassium) were measured, and the level of calcium as well as ALT, AST, ALP and LDH was determined by commercial kits. The level of total-antioxidant, MDA and the activity of SOD and CAT were estimated with the help of a spectrophotometer. Gene expression was studied using rt-PCR. RESULTS The p-NP treatment of osteogenic differentiated MSCs showed intracellular electrolyte imbalance and variation of cellular metabolism. In addition, we observed oxidative stress due to the reduction of total antioxidant capacity and the imbalance of antioxidant enzymes activity. Investigating the genes involved in the osteogenic differentiation of MSCs to osteoblast showed that the 2.5 μM of p-NP reduced the expression of the ALP, SMAD, BMP and RUNX2 genes. CONCLUSION The study concludes that this pollutant via influencing the genomics and metabolic imbalance, as well as oxidative induction, caused a reduction of mineralization and differentiation of MSCs. This environmental pollutant might cause osteoporosis, which necessitates raising public awareness, especially to those who live in the industrial area to prevent its drastic effect.
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Affiliation(s)
- Abnosi M Hussein
- Department of Biology, Faculty of Sciences, Arak University, Arak, Iran
| | - Masoomi Sina
- Department of Biology, Faculty of Sciences, Arak University, Arak, Iran
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13
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Reed BG, Babayev SN, Chen LX, Carr BR, Word RA, Jimenez PT. Estrogen-regulated miRNA-27b is altered by bisphenol A in human endometrial stromal cells. Reproduction 2020; 156:559-567. [PMID: 30328349 PMCID: PMC6215928 DOI: 10.1530/rep-18-0041] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 09/28/2018] [Indexed: 12/25/2022]
Abstract
MicroRNAs (miRs) are small molecules important for regulation of transcription and translation. The objective was to identify hormonally regulated miRs in human endometrial stromal cells and to determine the impact of the endocrine disruptor, bisphenol A (BPA), on those miRs. miR microarray analysis and multiple confirmatory cell preparations treated with 17β-estradiol (E2) and BPA altered miR-27b, let-7c, let-7e and miR-181b. Further, decidualization downregulated miR-27b. VEGFB and VEGFC were validated as targets of miR-27b. Identification of miR-27b target genes suggests that BPA and E2 downregulate miR-27b thereby leading to upregulation of genes important for vascularization and angiogenesis of the endometrium during the menstrual cycle and decidualization.
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Affiliation(s)
- Beverly G Reed
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Samir N Babayev
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Lucy X Chen
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Bruce R Carr
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - R Ann Word
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Patricia T Jimenez
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Jiang L, Yang Y, Zhang Y, Liu Y, Pan B, Wang B, Lin Y. Accumulation and toxicological effects of nonylphenol in tomato (Solanum lycopersicum L) plants. Sci Rep 2019; 9:7022. [PMID: 31065044 PMCID: PMC6504949 DOI: 10.1038/s41598-019-43550-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 04/28/2019] [Indexed: 11/18/2022] Open
Abstract
Nonylphenol (NP) is one of the most worrisome and ubiquitous environmental endocrine disruptors. The tomato is one of the most important agricultural plants in the world. However, little is known about the toxicological effects of NP on tomato crops or the accommodative responses of tomato plants to NP stress. Thus, in this study, relevant tests were performed using pot experiments, and they indicated that when the NP concentration in the soil was elevated from 25 mg kg-1 to 400 mg kg-1, NP was progressively accumulated by the tomato plants. The NP induced growth inhibition and a declined in the total chlorophyll content, and it aggravated membrane lipid peroxidation in tomato plants. When confronted with NP stress, the tomato plants correspondingly induced their antioxidant enzymes via both molecular and protein pathways to relieve the NP-induced oxidative stress. All the above results would be illuminating for developing strategies to address NP-induced damage to agricultural output, food quality and public health.
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Affiliation(s)
- Lei Jiang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou, 571101, China
| | - Yi Yang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou, 571101, China
| | - Yong Zhang
- Hainan Entry-Exit Inspection and Quarantine Bureau, Haikou, 570311, China
| | - Ying Liu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou, 571101, China
| | - Bo Pan
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Bingjie Wang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Yong Lin
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
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15
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Flöter VL, Bauersachs S, Fürst RW, Krebs S, Blum H, Reichenbach M, Ulbrich SE. Exposure of pregnant sows to low doses of estradiol-17β impacts on the transcriptome of the endometrium and the female preimplantation embryos†. Biol Reprod 2019; 100:624-640. [PMID: 30260370 DOI: 10.1093/biolre/ioy206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 07/30/2018] [Accepted: 09/25/2018] [Indexed: 11/14/2022] Open
Abstract
Maternal exposure to estrogens can induce long-term adverse effects in the offspring. The epigenetic programming may start as early as the period of preimplantation development. We analyzed the effects of gestational estradiol-17β (E2) exposure with two distinct low doses, corresponding to the acceptable daily intake "ADI" and close to the no-observed-effect level "NOEL", and a high dose (0.05, 10, and 1000 μg E2/kg body weight daily, respectively). The E2 doses were orally applied to sows from insemination until sampling at day 10 of pregnancy and compared to carrier-treated controls leading to a significant increase in E2 in plasma, bile and selected somatic tissues including the endometrium in the high-dose group. Conjugated and unconjugated E2 metabolites were as well elevated in the NOEL group. Although RNA-sequencing revealed a dose-dependent effect of 14, 17, and 27 differentially expressed genes (DEG) in the endometrium, single embryos were much more affected with 982 DEG in female blastocysts of the high-dose group, while none were present in the corresponding male embryos. Moreover, the NOEL treatment caused 62 and 3 DEG in female and male embryos, respectively. Thus, we detected a perturbed sex-specific gene expression profile leading to a leveling of the transcriptome profiles of female and male embryos. The preimplantation period therefore demonstrates a vulnerable time window for estrogen exposure, potentially constituting the cause for lasting consequences. The molecular fingerprint of low-dose estrogen exposure on developing embryos warrants a careful revisit of effect level thresholds.
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Affiliation(s)
- Veronika L Flöter
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, Zurich, Switzerland.,Physiology Weihenstephan, Technische Universität München, Freising, Germany
| | - Stefan Bauersachs
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, Zurich, Switzerland
| | - Rainer W Fürst
- Physiology Weihenstephan, Technische Universität München, Freising, Germany
| | - Stefan Krebs
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center of the Ludwig-Maximilians-Universität (LMU) München, Munich, Germany
| | - Helmut Blum
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center of the Ludwig-Maximilians-Universität (LMU) München, Munich, Germany
| | - Myriam Reichenbach
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center of the Ludwig-Maximilians-Universität (LMU) München, Munich, Germany
| | - Susanne E Ulbrich
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, Zurich, Switzerland.,Physiology Weihenstephan, Technische Universität München, Freising, Germany
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16
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Abstract
Endocrine disruption has been gathering increasing attention in the past 25 years as a possible new threat for health and safety. Exposure to endocrine disruptor has been progressively linked with a growing number of increasing disease in the human population. The mechanics through which endocrine disruptors act are not yet completely clear, however a number of pathways have been identified. A key concern is the cumulative and synergic effects that endocrine disruptors could have when mixed in consumer products. We reviewed the available literature to identify known or potential endocrine disruptors, as well as endocrine active substances that could contribute to cumulative effects, in topical consumer products. The number of endocrine actives used daily in consumer products is staggering and even though most if not all are used in concentrations that are considered to be safe, we believe that the possibility of combined effects in mixtures and non-monotonic dose/response is enough to require further precautions. A combined in vitro approach based on existing, validated OECD test methods is suggested to screen consumer products and mixtures for potential interaction with estrogen and androgen hormone receptors, in order to identify products that could have cumulative effects or support their safety concerning direct endocrine disruption capabilities.
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Acir IH, Guenther K. Endocrine-disrupting metabolites of alkylphenol ethoxylates - A critical review of analytical methods, environmental occurrences, toxicity, and regulation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 635:1530-1546. [PMID: 29874777 DOI: 10.1016/j.scitotenv.2018.04.079] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 05/07/2023]
Abstract
Despite the fact that metabolites of alkylphenol ethoxylates (APEO) are classified as hazardous substances, they continue to be released into the environment from a variety of sources and are not usually monitored. Their wide use has led to an increase in the possible exposure pathways for humans, which is cause for alarm. Moreover, there is a lack of knowledge about the behaviour of these metabolites with respect to the environment and toxicity, and their biological effects on human health. The aim of this work is to give an overview of the APEO metabolites and their analysis, occurrences and toxicity in various environmental and human samples. APEO metabolites have adverse effects on humans, wildlife, and the environment through their release into the environment. Currently, there are some reviews available on the behaviour of alkylphenols in soil, sediments, groundwater, surface water and food. However, none of these articles consider their toxicity in humans and especially their effect on the nervous and immune system. This work summarises the environmental occurrences of metabolites of APEOs in matrices, e.g. water, food and biological matrices, their effect on the immune and nervous systems, and isomer-specific issues. With that emphasis we are able to cover most common occurrences of human exposure, whether direct or indirect.
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Affiliation(s)
- Ismail-H Acir
- University of Bonn, Institute of Nutrition and Food Sciences, Food Chemistry, Endenicher Allee 11-13, D-53115 Bonn, Germany
| | - Klaus Guenther
- University of Bonn, Institute of Nutrition and Food Sciences, Food Chemistry, Endenicher Allee 11-13, D-53115 Bonn, Germany.
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18
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Gu W, Wang Y, Qiu Z, Dong J, Wang Y, Chen J. Maternal exposure to nonylphenol during pregnancy and lactation induces microglial cell activation and pro-inflammatory cytokine production in offspring hippocampus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:525-533. [PMID: 29635194 DOI: 10.1016/j.scitotenv.2018.03.329] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/11/2018] [Accepted: 03/26/2018] [Indexed: 06/08/2023]
Abstract
Recently, environmental nonylphenol (NP) exposure in the fetus and child has received increasing attention because of its potentially deleterious effects on the central nervous system (CNS). Microglia (MG), resident immune cells in the CNS, are vital to CNS homeostasis and defense against exogenous chemicals, which makes them a potentially sensitive target of NP. The present study aims to explore the effects of maternal NP exposure during pregnancy and lactation on MG in offspring hippocampus, the production of pro-inflammatory cytokines by MG, and associated underlying mechanisms. We found that maternal NP exposure increased the production of interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) in offspring hippocampus. Increases in both activation and number of MG were observed in offspring hippocampus. Increased phosphorylation of Akt was found to co-localize with hippocampal MG, while increased phosphorylation of c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase (MAPK) were observed in offspring hippocampus. Activator protein 1 (AP-1), an inflammatory transcription factor, was also activated in the hippocampus of pups subjected to maternal NP exposure. These results suggest that maternal NP exposure might activate MG in offspring hippocampus. This activation seems to subsequently increase the production of IL-1β, IL-6, and TNF-α. Furthermore, Akt/MAPK/AP-1 signaling may be involved in this activation of MG and increased production of pro-inflammatory cytokines.
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Affiliation(s)
- Weijia Gu
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Yi Wang
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Zhenmin Qiu
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Jing Dong
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Yuan Wang
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Jie Chen
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China.
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Vilela CLS, Bassin JP, Peixoto RS. Water contamination by endocrine disruptors: Impacts, microbiological aspects and trends for environmental protection. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:546-559. [PMID: 29329096 DOI: 10.1016/j.envpol.2017.12.098] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 12/22/2017] [Accepted: 12/25/2017] [Indexed: 05/12/2023]
Abstract
Hormone active agents constitute a dangerous class of pollutants. Among them, those agents that mimic the action of estrogens on target cells and are part of the group of endocrine-disruptor compounds (EDCs) are termed estrogenic EDCs, the main focus of this review. Exposure to these compounds causes a number of negative effects, including breast cancer, infertility and animal hermaphroditism. However, especially in underdeveloped countries, limited efforts have been made to warn people about this serious issue, explain the methods of minimizing exposure, and develop feasible and efficient mitigation strategies at different levels and in various environments. For instance, the use of bioremediation processes capable of transforming EDCs into environmentally friendly compounds has been little explored. A wide diversity of estrogen-degrading microorganisms could be used to develop such technologies, which include bioremediation processes for EDCs that could be implemented in biological filters for the post-treatment of wastewater effluent. This review describes problems associated with EDCs, primarily estrogenic EDCs, including exposure as well as the present status of understanding and the effects of natural and synthetic hormones and estrogenic EDCs on living organisms. We also describe potential biotechnological strategies for EDC biodegradation, and suggest novel treatment approaches for minimizing the persistence of EDCs in the environment.
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Affiliation(s)
- Caren Leite Spindola Vilela
- Department of General Microbiology, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - João Paulo Bassin
- Chemical Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Raquel Silva Peixoto
- Department of General Microbiology, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; IMAM-AquaRio - Rio de Janeiro Marine Aquarium Research Center, Rio de Janeiro, Brazil.
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20
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Jiang L, Yang Y, Jia LX, Liu Y, Pan B, Lin Y. Effects of earthworm casts on sorption-desorption, degradation, and bioavailability of nonylphenol in soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:7968-7977. [PMID: 29302909 DOI: 10.1007/s11356-017-1130-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
Up to hundreds of milligrams per kilogram (dry weight) of nonylphenol (NP) reportedly entered the soil and sediment through the agricultural reuse of biosolids, pesticide application, etc. Organic pollutants in soil could not only further trigger groundwater contamination via leaching (that highly depends upon sorption-desorption and degradation phenomena) but also harm food safety by crop uptake (that mainly rests with the bioavailability of pollutants in soil). Thus, we first investigated the effects of earthworm casts (EWCs) on the sorption-desorption, degradation, and bioavailability of NP in soil under laboratory microcosm conditions, and then, analyzed the FT-IR spectra of EWC and soil samples (with and without EWC). The application of EWC could notably increase the sorption capacity of soils for NP and in turn significantly inhibited the desorption of NP from soil; responsively lengthened the half-time of NP in the soil; and reduced the uptake and translocation of NP in tomato seedlings and promoted their growth during the first 3 weeks. Finally, FT-IR spectra of EWC and soil samples indicated that the application of EWC increased the content of N, P, and organic matter in soil.
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Affiliation(s)
- Lei Jiang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou, 571101, China
| | - Yi Yang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou, 571101, China
| | - Lin Xian Jia
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- College of Environment and Plant Protection, Hainan University, Haikou, 570228, China
| | - Ying Liu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Bo Pan
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Yong Lin
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
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21
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Zhang HY, Xue WY, Zhu YS, Huo WQ, Xu B, Xu SQ. Perinatal exposure to 4-nonylphenol can affect fatty acid synthesis in the livers of F1 and F2 generation rats. Toxicol Res (Camb) 2018; 7:283-292. [PMID: 30090582 PMCID: PMC6062378 DOI: 10.1039/c7tx00316a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 01/18/2018] [Indexed: 11/21/2022] Open
Abstract
Objective: To explore the effects of different dosages of 4-nonylphenol (4-NP) on the fatty acid synthesis and estrogen receptor α (ERα) expression in the livers of F1 and F2 rats. Method: Pregnant rats were randomly divided into four groups: control, NP-5 (5 μg per kg per day), NP-25 (25 μg per kg per day) and NP-125 (125 μg per kg per day). 4-NP was gavaged from gestation day (GD) 6 to postnatal day (PND) 21. Some female rats from the experimental groups were mated with male rats from the control group to obtain the F2 rats. F1 generation rats (23 weeks old) and F2 generation rats (13 weeks old) were killed to detect blood biochemistry and the expression of genes and proteins. Results: Compared with the control group, 4-NP (NP-5, NP-25 and NP-125) can increase the liver organ coefficient of the F1 male offspring (P < 0.05 or P < 0.01). The concentration of high density lipoprotein (HDL) in the F1 female NP-5 group was significantly higher than that of the control group (P < 0.01); other indicators had not changed, such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), total cholesterol (TC) and low density lipoprotein (LDL). As the dosage of 4-NP increased, more significant changes of blood biochemistry were found, especially in the NP-125 rats (P < 0.05 or P < 0.01). The changes of histopathology by liver biopsy were consistent with biochemical indices of blood (P < 0.05 or P < 0.01). Compared with the control group, the expression of genes involved in fatty acid synthesis increased significantly (P < 0.05 or P < 0.01), and the degrees of increase were proportional to the dose of 4-NP, as measured by lipoprotein lipase (Lpl), fatty acid synthetase (Fas), sterol regulatory element-binding protein 1 (Srebp-1) and peroxisome proliferator-activated receptor (Ppar)-γ. The expression of genes and proteins of ERα were changed significantly, as well (P < 0.05 or P < 0.01). The above changes in the liver tissues of F2 generation rats were consistent with the F1 generation rats. Conclusion: Perinatal exposure to 4-NP can affect the synthesis of fatty acid in the livers of F1 and F2 generation rats. The low expression of ERα may be one of the mechanisms by which 4-NP affected fatty acid synthesis in the livers of rats.
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Affiliation(s)
- Hong-Yu Zhang
- School of Biological and Pharmaceutical Engineering , Wuhan Polytechnic University , Wuhan 430030 , China
- Ministry of Education Key Laboratory of Environment and Health , School of Public Health , Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China . ; ; Tel: +86 27 83657705
| | - Wei-Yan Xue
- Ministry of Education Key Laboratory of Environment and Health , School of Public Health , Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China . ; ; Tel: +86 27 83657705
| | - Ying-Shuang Zhu
- Ministry of Education Key Laboratory of Environment and Health , School of Public Health , Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China . ; ; Tel: +86 27 83657705
| | - Wen-Qian Huo
- Ministry of Education Key Laboratory of Environment and Health , School of Public Health , Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China . ; ; Tel: +86 27 83657705
| | - Bing Xu
- Ministry of Education Key Laboratory of Environment and Health , School of Public Health , Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China . ; ; Tel: +86 27 83657705
| | - Shun-Qing Xu
- Ministry of Education Key Laboratory of Environment and Health , School of Public Health , Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China . ; ; Tel: +86 27 83657705
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Gu W, Wang Y, Qiu Z, Dong J, Wang Y, Chen J. Mitogen-activated protein kinase signaling is involved in nonylphenol-induced proinflammatory cytokines secretion by BV2 microglia. J Appl Toxicol 2018; 38:958-967. [DOI: 10.1002/jat.3602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/10/2018] [Accepted: 01/11/2018] [Indexed: 01/13/2023]
Affiliation(s)
- Weijia Gu
- Department of Occupational and Environmental Health, School of Public Heath; China Medical University; Shenyang People's Republic of China
| | - Yi Wang
- Department of Occupational and Environmental Health, School of Public Heath; China Medical University; Shenyang People's Republic of China
| | - Zhenmin Qiu
- Department of Occupational and Environmental Health, School of Public Heath; China Medical University; Shenyang People's Republic of China
| | - Jing Dong
- Department of Occupational and Environmental Health, School of Public Heath; China Medical University; Shenyang People's Republic of China
| | - Yuan Wang
- Department of Occupational and Environmental Health, School of Public Heath; China Medical University; Shenyang People's Republic of China
| | - Jie Chen
- Department of Occupational and Environmental Health, School of Public Heath; China Medical University; Shenyang People's Republic of China
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23
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ElShafei G, Yehia F, Eshaq G, ElMetwally A. Enhanced degradation of nonylphenol at neutral pH by ultrasonic assisted- heterogeneous Fenton using nano zero valent metals. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.01.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Dimorphic placental stress: A repercussion of interaction between endocrine disrupting chemicals (EDCs) and fetal sex. Med Hypotheses 2017; 99:73-75. [PMID: 28110704 DOI: 10.1016/j.mehy.2017.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 01/02/2017] [Indexed: 12/14/2022]
Abstract
Placental homeostasis is critical for fetal development as it determines the health of mother and fetus during pregnancy and in later life. Interestingly even the fetus, in a sexually dimorphic manner, influences the pedantic growth and development of placenta. Although placenta is thought to act as a protective barrier against chemical exposures, certain endocrine disrupting chemicals (EDCs) that are circulating in mother's blood tend to cross placenta. These EDCs have been reported to cause changes in expression levels of certain genes, immunogenic factors and non-coding RNAs such as micro RNA (miRNA) and long non-coding RNA (lncRNA) leading to placental stress. We hypothesize that these changes in placenta occur in a sexually dimorphic manner as a result of interaction between EDC exposure and fetal sex. Therefore, we propose that the ability of placenta to respond and buffer EDC exposure depends on fetal sex and, hence the EDC associated disease susceptibility of one sex differs from the other.
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25
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Sheikh IA, Tayubi IA, Ahmad E, Ganaie MA, Bajouh OS, AlBasri SF, Abdulkarim IMJ, Beg MA. Computational insights into the molecular interactions of environmental xenoestrogens 4-tert-octylphenol, 4-nonylphenol, bisphenol A (BPA), and BPA metabolite, 4-methyl-2, 4-bis (4-hydroxyphenyl) pent-1-ene (MBP) with human sex hormone-binding globulin. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 135:284-291. [PMID: 27750096 DOI: 10.1016/j.ecoenv.2016.10.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 09/13/2016] [Accepted: 10/05/2016] [Indexed: 06/06/2023]
Abstract
Environmental contamination has been one of the major drawbacks of the industrial revolution. Several man-made chemicals are constantly released into the environment during the manufacturing process and by leaching from the industrial products. As a result, human and animal populations are exposed to these synthetic chemicals on a regular basis. Many of these chemicals have adverse effects on the physiological functions, particularly on the hormone systems in human and animals and are called endocrine disrupting chemicals (EDCs). Bisphenol A (BPA), 4-tert-octylphenol (OP), and 4-nonylphenol (NP) are three high volume production EDCs that are widely used for industrial purposes and are present ubiquitously in the environment. Bisphenol A is metabolized in the human body to a more potent compound (MBP: 4-Methyl-2, 4-bis (4-hydroxyphenyl) pent-1-ene). Epidemiological and experimental studies have shown the three EDCs to be associated with adverse effects on reproductive system in human and animals. Sex hormone-binding globulin (SHBG) is a circulatory protein that binds sex steroids and is a potential target for endocrine disruptors in the human body. The current study was done in order to understand the binding mechanism of OP, BPA, NP, and MBP with human SHBG using in silico approaches. All four compounds showed high binding affinity with SHBG, however, the binding affinity values were higher (more negative) for MBP and NP than for OP and BPA. The four ligands interacted with 19-23 residues of SHBG and a consistent overlapping of the interacting residues for the four ligands with the residues for the natural ligand, dihydrotestosterone (DHT; 82-91% commonality) was shown. The overlapping SHBG interacting residues among DHT and the four endocrine disruptors suggested that these compounds have potential for interference and disruption in the steroid binding function.
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Affiliation(s)
- Ishfaq A Sheikh
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Iftikhar A Tayubi
- Faculty of Computing and Information Technology, King Abdulaziz University, Rabigh, Kingdom of Saudi Arabia
| | - Ejaz Ahmad
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Majid A Ganaie
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj, Kingdom of Saudi Arabia
| | - Osama S Bajouh
- Department of Obstetrics and Gynecology, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Samera F AlBasri
- Department of Obstetrics and Gynecology, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Ibtihal M J Abdulkarim
- Department of Obstetrics and Gynecology, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mohd A Beg
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
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26
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Sieppi E, Vähäkangas K, Rautio A, Ietta F, Paulesu L, Myllynen P. The xenoestrogens, bisphenol A and para-nonylphenol, decrease the expression of the ABCG2 transporter protein in human term placental explant cultures. Mol Cell Endocrinol 2016; 429:41-9. [PMID: 27036933 DOI: 10.1016/j.mce.2016.03.034] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 02/25/2016] [Accepted: 03/28/2016] [Indexed: 11/30/2022]
Abstract
Many endogenous and xenobiotic compounds are substrates and regulators of human placental ABC transporters. ABCG2 is protecting fetus against foreign chemicals. Environmental xenoestrogens, like bisphenol A (BPA) and p-nonylphenol (p-NP), mimic natural estrogens and can affect hormonal systems. Effects of BPA, p-NP, DES (diethylstilbestrol) and estradiol (E2), on ABCG2 expression were studied using human first trimester and term placental explants. Role of estrogen receptors (ER) in the effects of chemicals was studied by ER antagonist. Term placenta expressed less ABCG2 protein. In term placentas BPA (p < 0.05), p-NP (p < 0.01) and E2 (p < 0.05) decreased the ABCG2 protein expression after 48 h exposure while after 24 h exposure, only E2 decreased the expression (p < 0.05). The chemicals did not affect ABCG2 in first trimester placentas. The ER antagonist affected differently the responses of chemicals. In conclusion, environmental xenoestrogens downregulate placental ABCG2 protein expression depending on gestational age.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily G, Member 2/genetics
- ATP Binding Cassette Transporter, Subfamily G, Member 2/metabolism
- Benzhydryl Compounds/toxicity
- Cells, Cultured
- Chorionic Villi/drug effects
- Chorionic Villi/metabolism
- Diethylstilbestrol/toxicity
- Down-Regulation/drug effects
- Estrogens/toxicity
- Female
- Humans
- Phenols/toxicity
- Placenta/drug effects
- Placenta/metabolism
- Pregnancy
- Pregnancy Trimester, First/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Estrogen/antagonists & inhibitors
- Receptors, Estrogen/metabolism
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Affiliation(s)
- E Sieppi
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, P.O. Box 5000, 90014, University of Oulu, Oulu, Finland; Centre for Arctic Medicine, Thule Institute, University of Oulu, P.O. Box 7300, 90014, University of Oulu, Oulu, Finland.
| | - K Vähäkangas
- Faculty of Health Sciences, School of Pharmacy/Toxicology, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland.
| | - A Rautio
- Centre for Arctic Medicine, Thule Institute, University of Oulu, P.O. Box 7300, 90014, University of Oulu, Oulu, Finland.
| | - F Ietta
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy.
| | - L Paulesu
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy.
| | - P Myllynen
- Centre for Arctic Medicine, Thule Institute, University of Oulu, P.O. Box 7300, 90014, University of Oulu, Oulu, Finland; Nordlab Oulu, P.O. Box 500, 90029, OYS, Oulu, Finland.
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Forte M, Di Lorenzo M, Carrizzo A, Valiante S, Vecchione C, Laforgia V, De Falco M. Nonylphenol effects on human prostate non tumorigenic cells. Toxicology 2016; 357-358:21-32. [DOI: 10.1016/j.tox.2016.05.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 05/23/2016] [Accepted: 05/30/2016] [Indexed: 12/13/2022]
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Siwetz M, Blaschitz A, El-Heliebi A, Hiden U, Desoye G, Huppertz B, Gauster M. TNF-α alters the inflammatory secretion profile of human first trimester placenta. J Transl Med 2016; 96:428-38. [PMID: 26752743 DOI: 10.1038/labinvest.2015.159] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 09/23/2015] [Accepted: 10/12/2015] [Indexed: 12/22/2022] Open
Abstract
Implantation and subsequent placental development depend on a well-orchestrated interaction between fetal and maternal tissues, involving a fine balanced synergistic cross-talk of inflammatory and immune-modulating factors. Tumor necrosis factor (TNF)-α has been increasingly recognized as pivotal factor for successful pregnancy, although high maternal TNF-α levels are associated with a number of adverse pregnancy conditions including gestational hypertension and gestational diabetes mellitus. This study describes effects of exogenously applied TNF-α, mimicking increased maternal TNF-α levels, on the secretion profile of inflammation associated factors in human first trimester villous placenta. Conditioned culture media from first trimester villous placental explants were analyzed by inflammation antibody arrays and ELISA after 48 h culture in the presence or absence of TNF-α. Inflammation antibody arrays identified interleukin (IL)-6, IL-8, chemokine (C-C motif) ligand 2 (CCL2), CCL4, and granulocyte-macrophage colony-stimulating factor (GM-CSF) as the most abundantly secreted inflammation-associated factors under basal culture conditions. In the presence of TNF-α, secretion of GM-CSF, CCL5, and IL-10 increased, whereas IL-4 and macrophage CSF levels decreased compared with controls. ELISA analysis verified antibody arrays by showing significantly increased synthesis and release of GM-CSF and CCL5 by placental explants in response to TNF-α. Immunohistochemistry localized GM-CSF in the villous trophoblast compartment, whereas CCL5 was detected in maternal platelets adhering to perivillous fibrin deposits on the villous surface. mRNA-based in situ padlock probe approach localized GM-CSF and CCL5 transcripts in the villous trophoblast layer and the villous stroma. Results from this study suggest that the inflammatory secretion profile of human first trimester placenta shifts towards increased levels of GM-CSF, CCL5, and IL10 in response to elevated maternal TNF-α levels, whereas IL-6 and IL-8 remain unaffected. This shift may represent a protective mechanism by human first trimester villous placenta to sustain trophoblast function and dampen inflammatory processes in the intervillous space.
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Affiliation(s)
- Monika Siwetz
- Institute of Cell Biology, Histology and Embryology, Medical University Graz, Graz, Austria
| | - Astrid Blaschitz
- Institute of Cell Biology, Histology and Embryology, Medical University Graz, Graz, Austria
| | - Amin El-Heliebi
- Institute of Cell Biology, Histology and Embryology, Medical University Graz, Graz, Austria
| | - Ursula Hiden
- Department of Obstetrics and Gynaecology, Medical University Graz, Graz, Austria
| | - Gernot Desoye
- Department of Obstetrics and Gynaecology, Medical University Graz, Graz, Austria
| | - Berthold Huppertz
- Institute of Cell Biology, Histology and Embryology, Medical University Graz, Graz, Austria
| | - Martin Gauster
- Institute of Cell Biology, Histology and Embryology, Medical University Graz, Graz, Austria
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Holder B, Jones T, Sancho Shimizu V, Rice TF, Donaldson B, Bouqueau M, Forbes K, Kampmann B. Macrophage Exosomes Induce Placental Inflammatory Cytokines: A Novel Mode of Maternal–Placental Messaging. Traffic 2016; 17:168-78. [PMID: 26602702 PMCID: PMC4738478 DOI: 10.1111/tra.12352] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 11/18/2015] [Accepted: 11/18/2015] [Indexed: 12/12/2022]
Abstract
Exosome trafficking from the placenta into the maternal circulation is well documented; the possibility that this trafficking is bi‐directional was unknown. We demonstrated clathrin‐mediated endocytosis of macrophage exosomes by the human placenta. We also demonstrated that macrophage exosomes induced placental production of cytokines interleukin (IL)‐6, IL‐8 and IL‐10. Exosomes therefore comprise an additional mechanism of immune cell signalling to the placenta, potentially facilitating protective responses to maternal inflammation and infection in pregnancy. This represents a novel mode of maternal–placental messaging.
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Affiliation(s)
- Beth Holder
- Section of Paediatrics, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
| | - Tessa Jones
- Section of Paediatrics, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
| | - Vanessa Sancho Shimizu
- Section of Paediatrics, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
- Virology, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
| | - Thomas F. Rice
- Section of Paediatrics, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
| | - Beverly Donaldson
- Section of Paediatrics, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
| | - Marielle Bouqueau
- Section of Paediatrics, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
| | - Karen Forbes
- Division of Reproduction and Early Development Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), The University of Leeds Leeds UK
- Maternal and Fetal Health Research Centre, Institute of Human Development The University of Manchester Manchester UK
| | - Beate Kampmann
- Section of Paediatrics, Division of Infectious Diseases Department of Medicine, Imperial College London London UK
- Vaccines & Immunity Theme MRC Unit Banjul The Gambia
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30
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Chen M, Fan Z, Zhao F, Gao F, Mu D, Zhou Y, Shen H, Hu J. Occurrence and Maternal Transfer of Chlorinated Bisphenol A and Nonylphenol in Pregnant Women and Their Matching Embryos. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:970-7. [PMID: 26691760 DOI: 10.1021/acs.est.5b04130] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Prenatal exposure has recently raised concerns over the health risks of endocrine disruptors; however, little is known about their extent and the mechanisms of maternal transfer in the embryo stage. In this study, bisphenol A (BPA), nonylphenol (NP), and their six chlorinated derivatives were quantified in decidua samples from 25 pregnant women and their matching embryos, which were collected as chorionic villi samples. Monochloro-BPA (MCBPA), dichloro-BPA (DCBPA), monochloro-NP (MCNP), and dichloro-NP (DCNP) were detected in over 70% of the decidua or chorionic villi samples, while BPA, NP, trichloro-BPA (TCBPA), and tetrachloro-BPA (TeCBPA) were detected in less than half. The geometric mean (GM) concentrations of MCBPA, DCBPA, NP, MCNP, and DCNP in chorionic villi samples were 0.13, 0.17, 5.33, 4.52, and 2.44 ng/g dw, respectively, higher than those in maternal decidua samples, which were 0.10, 0.12, 3.27, 1.85, and 0.74 ng/g dw, respectively, while the GM concentration of BPA was lower in chorionic villi samples (0.09 ng/g dw) than in maternal decidua (0.10 ng/g dw). The ratios of the average lipid-normalized concentrations of chemicals in chorionic villi to those in maternal decidua (EMR) were calculated to be 1.53 for MCNP and 2.38 for DCNP, while those of BPA, MCBPA, DCBPA, and NP were lower than 1 (0.39-0.97). Such obvious difference in maternal transfer is probably due to their different affinities to plasma proteins, as exemplified by the correlation between EMR and the binding affinities to T4 transport proteins (TTR). This is the first report on the occurrence and maternal transfer of chlorinated derivatives of BPA and NP in human embryos and decidua.
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Affiliation(s)
- Mo Chen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Zhanlan Fan
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Fanrong Zhao
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Fumei Gao
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Di Mu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Yuyin Zhou
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Huan Shen
- Reproductive Medical Center, Peking University People's Hospital, Peking University , Beijing 100044, China
| | - Jianying Hu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
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31
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Mannelli C, Ietta F, Avanzati AM, Skarzynski D, Paulesu L. Biological Tools to Study the Effects of Environmental Contaminants at the Feto-Maternal Interface. Dose Response 2015; 13:1559325815611902. [PMID: 26740808 PMCID: PMC4679191 DOI: 10.1177/1559325815611902] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The identification of reproductive toxicants is a major scientific challenge for human health. Prenatal life is the most vulnerable and important time span of human development. For obvious ethical reasons, in vivo models cannot be used in human pregnancy, and animal models do not perfectly reflect human physiology. This review describes the in vitro test models representative of the human feto-maternal interface and the effects of environmental chemicals with estrogen-like activity, mainly bisphenol A and para-nonylphenol, with a particular emphasis on the effects at low, nontoxic doses similar to concentrations commonly detected in the population.
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Affiliation(s)
- Chiara Mannelli
- Department of Life Sciences, University of Siena, Siena, Italy
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Francesca Ietta
- Department of Life Sciences, University of Siena, Siena, Italy
| | | | - Dariusz Skarzynski
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Luana Paulesu
- Department of Life Sciences, University of Siena, Siena, Italy
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32
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Spagnoletti A, Paulesu L, Mannelli C, Ermini L, Romagnoli R, Cintorino M, Ietta F. Low concentrations of Bisphenol A and para-Nonylphenol affect extravillous pathway of human trophoblast cells. Mol Cell Endocrinol 2015; 412:56-64. [PMID: 26027920 DOI: 10.1016/j.mce.2015.05.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 01/27/2023]
Abstract
Bisphenol A (BPA) and para-Nonylphenol (p-NP) are chemicals of industrial origin which may influence human reproductive health. The effects of these substances in the prenatal life is an important topic that is receiving greater attention in the developed countries. In this study, human trophoblast cells HTR-8/SVneo were exposed to BPA and p-NP (1 × 10(-15), 1 × 10(-13), 1 × 10(-11), 1 × 10(-9) and 1 × 10(-7) M) and incubated for 24, 48 and/or 72 h then, examined for the main physiological processes which characterize the extravillous trophoblast. Cell proliferation showed no changes while the processes of cell migration and invasion were both reduced by BPA and p-NP. For each chemical, the activity was higher at lower concentrations with a maximum activity between 1 × 10(-13) and 1 × 10(-11) M (p < 0.05 for 1 × 10(-9) and p < 0.001 for 1 × 10(-11) M). Co-culture studies with human umbilical cord endothelial cells (HUVEC) revealed that trophoblast/endothelial interaction was significantly reduced by p-NP at 1 × 10(-11) M. Moreover, both chemicals were inducing differentiation of HTR-8/SVneo toward polyploidy by the process of endoreduplication. The estrogen-receptor antagonist ICI significantly reduced p-NP action, while it had no effect on BPA treated cells. In conclusion, p-NP and BPA act on trophoblast cells altering key physiological processes in placenta development. The exact mechanism of action of the chemicals in human trophoblast still needs to be clarified.
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Affiliation(s)
| | - Luana Paulesu
- Department of Life Sciences, University of Siena, Via A. Moro 4, 53100 Siena, Italy
| | - Chiara Mannelli
- Department of Life Sciences, University of Siena, Via A. Moro 4, 53100 Siena, Italy
| | - Leonardo Ermini
- Department of Life Sciences, University of Siena, Via A. Moro 4, 53100 Siena, Italy
| | - Roberta Romagnoli
- Department of Life Sciences, University of Siena, Via A. Moro 4, 53100 Siena, Italy
| | - Marcella Cintorino
- Department of Medicine, Surgery and Neuroscience, Policlinico Santa Maria alle Scotte, Viale Mario Bracci, 53100 Siena, Italy
| | - Francesca Ietta
- Department of Life Sciences, University of Siena, Via A. Moro 4, 53100 Siena, Italy.
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Lu Z, Gan J. Analysis, toxicity, occurrence and biodegradation of nonylphenol isomers: a review. ENVIRONMENT INTERNATIONAL 2014; 73:334-345. [PMID: 25222298 DOI: 10.1016/j.envint.2014.08.017] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 08/22/2014] [Accepted: 08/26/2014] [Indexed: 06/03/2023]
Abstract
Over the last two decades, nonylphenols (NPs) have become to be known as a priority hazardous substance due primarily to its estrogenicity and ubiquitous occurrence in the environment. Nonylphenols are commonly treated as a single compound in the evaluation of their environmental occurrence, fate and transport, treatment or toxicity. However, technical nonylphenols (tNPs) are in fact a mixture of more than 100 isomers and congeners. Recent studies showed that some of these isomers behaved significantly differently in occurrence, estrogenicity and biodegradability. The most estrogenic isomer was about 2 to 4 times more active than tNP. Moreover, the half lives of the most recalcitrant isomers were about 3 to 4 times as long as those of readily-biodegradable isomers. Negligence of NP's isomer specificity may result in inaccurate assessment of its ecological and health effects. In this review, we summarized the recent publications on the analysis, occurrence, toxicity and biodegradation of NP at the isomer level and highlighted future research needs to improve our understanding of isomer-specificity of NP.
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Affiliation(s)
- Zhijiang Lu
- Department of Environmental Sciences, University of California, Riverside, CA 9252, United States.
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, CA 9252, United States.
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Shan J, Wang Y, Wang L, Yan X, Ji R. Effects of the geophagous earthworm Metaphire guillelmi on sorption, mineralization, and bound-residue formation of 4-nonylphenol in an agricultural soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 189:202-207. [PMID: 24681511 DOI: 10.1016/j.envpol.2014.03.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 02/28/2014] [Accepted: 03/03/2014] [Indexed: 06/03/2023]
Abstract
Effects of earthworms on fate of nonylphenol (NP) are obscure. Using (14)C-4-NP111 as a representative, we studied the fate of 4-NP in an agricultural soil with or without the earthworm Metaphire guillelmi and in fresh cast of the earthworm. Sorption of 4-NP on the cast (Kd 1564) was significantly higher than on the parent soil (Kd 1474). Mineralization of 4-NP was significantly lower in the cast (13.2%) and the soil with earthworms (10.4%) than in the earthworm-free soil (16.0%). One nitro metabolite of 4-NP111 (2-nitro-4-NP111) was identified in the soil and cast, and the presence of the earthworm significantly decreased its amounts. The presence of earthworm also significantly decreased formation of bound residues of 4-NP in the soil. Our results demonstrate that earthworms could significantly change the fate of 4-NP, underlining that earthworm effects should be considered when evaluating behavior and risk of 4-NP in soil.
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Affiliation(s)
- Jun Shan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China; Changshu Agro-ecological Experimental Station, Chinese Academy of Sciences, Changshu 215555, China
| | - Yongfeng Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China
| | - Lianhong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China
| | - Xiaoyuan Yan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Changshu Agro-ecological Experimental Station, Chinese Academy of Sciences, Changshu 215555, China.
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China; Institute for Marine Sciences & Institute for Climate and Global Change Research, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
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Antagonistic effects of a mixture of low-dose nonylphenol and di-n-butyl phthalate (monobutyl phthalate) on the Sertoli cells and serum reproductive hormones in prepubertal male rats in vitro and in vivo. PLoS One 2014; 9:e93425. [PMID: 24676355 PMCID: PMC3968147 DOI: 10.1371/journal.pone.0093425] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Accepted: 03/06/2014] [Indexed: 12/24/2022] Open
Abstract
The estrogenic chemical nonylphenol (NP) and the antiandrogenic agent di-n-butyl phthalate (DBP) are regarded as widespread environmental endocrine disruptors (EDCs) which at high doses in some species of laboratory animals, such as mice and rats, have adverse effects on male reproduction and development. Given the ubiquitous coexistence of various classes of EDCs in the environment, their combined effects warrant clarification. In this study, we attempted to determine the mixture effects of NP and DBP on the testicular Sertoli cells and reproductive endocrine hormones in serum in male rats based on quantitative data analysis by a mathematical model. In the in vitro experiment, monobutyl phthalate (MBP), the active metabolite of DBP, was used instead of DBP. Sertoli cells were isolated from 9-day-old Sprague-Dawley rats followed by treatment with NP and MBP, singly or combined. Cell viability, apoptosis, necrosis, membrane integrity and inhibin-B concentration were tested. In the in vivo experiment, rats were gavaged on postnatal days 23-35 with a single or combined NP and DBP treatment. Serum reproductive hormone levels were recorded. Next, Bliss Independence model was employed to analyze the quantitative data obtained from the in vitro and in vivo investigation. Antagonism was identified as the mixture effects of NP and DBP (MBP). In this study, we demonstrate the potential of Bliss Independence model for the prediction of interactions between estrogenic and antiandrogenic agents.
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Bisphenol A alters β-hCG and MIF release by human placenta: an in vitro study to understand the role of endometrial cells. Mediators Inflamm 2014; 2014:635364. [PMID: 24737926 PMCID: PMC3967812 DOI: 10.1155/2014/635364] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/06/2014] [Accepted: 01/30/2014] [Indexed: 12/20/2022] Open
Abstract
A proper fetomaternal immune-endocrine cross-talk in pregnancy is fundamental for reproductive success. This might be unbalanced by exposure to environmental chemicals, such as bisphenol A (BPA). As fetoplacental contamination with BPA originates from the maternal compartment, this study investigated the role of the endometrium in BPA effects on the placenta. To this end, in vitro decidualized stromal cells were exposed to BPA 1 nM, and their conditioned medium (diluted 1 : 2) was used on chorionic villous explants from human placenta. Parallel cultures of placental explants were directly exposed to 0.5 nM BPA while, control cultures were exposed to the vehicle (EtOH 0.1%). After 24–48 h, culture medium from BPA-treated and control cultures was assayed for concentration of hormone human Chorionic Gonadotropin (β-hCG) and cytokine Macrophage Migration Inhibitory Factor (MIF). The results showed that direct exposure to BPA stimulated the release of both MIF and β-hCG. These effects were abolished/diminished in placental cultures exposed to endometrial cell-conditioned medium. GM-MS analysis revealed that endometrial cells retain BPA, thus reducing the availability of this chemical for the placenta. The data obtained highlight the importance of in vitro models including the maternal component in reproducing the effects of environmental chemicals on human fetus/placenta.
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Zhang HY, Xue WY, Li YY, Ma Y, Zhu YS, Huo WQ, Xu B, Xia W, Xu SQ. Perinatal exposure to 4-nonylphenol affects adipogenesis in first and second generation rats offspring. Toxicol Lett 2014; 225:325-32. [DOI: 10.1016/j.toxlet.2013.12.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/12/2013] [Accepted: 12/13/2013] [Indexed: 11/24/2022]
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Lu Z, Gan J. Isomer-specific biodegradation of nonylphenol in river sediments and structure-biodegradability relationship. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:1008-1014. [PMID: 24345275 DOI: 10.1021/es403950y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nonylphenol (NP), a well-known environmental estrogen with numerous isomers, is frequently found in surface water and sediments. Recent studies showed that NP isomers exhibited different estrogenicity. However, at present little information is available on its isomer-specific degradation in the bed sediment, which is the primary sink of NP in surface aquatic systems. In this study, we investigated the biodegradability of 19 NP isomers in two river sediments under oxic and anoxic conditions. Under oxic conditions, the half-lives of NP isomers in an upper river sediment ranged from 0.9 to 13.2 d. Under reduced conditions, the persistence of NP isomers generally increased, with negligible dissipation under strongly reduced conditions. In the well-aerated sediment, NP isomers with short side chain and/or bulky α-substituents were found to be more recalcitrant to degradation. Moreover, when a total of 57 molecular descriptors were examined, the degree of branching as quantified by IDWbar was found to result in the best linear correlation with half-lives of NP isomers (R(2) = 0.88). These results indicated that the isomer-specificity of NP in environmental processes should be considered, and that simple molecular descriptors may be used to identify the more recalcitrant isomers, thus allowing prioritization in the evaluation of environmental fate and risks of NP isomers.
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Affiliation(s)
- Zhijiang Lu
- Department of Environmental Sciences, University of California , Riverside California 92521
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39
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Snedeker SM, Hay AG. The Alkylphenols Nonylphenol and Octylphenol in Food Contact Materials and Household Items: Exposure and Health Risk Considerations. MOLECULAR AND INTEGRATIVE TOXICOLOGY 2014. [DOI: 10.1007/978-1-4471-6500-2_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Bulgaroni V, Lombardo P, Rivero-Osimani V, Vera B, Dulgerian L, Cerbán F, Rivero V, Magnarelli G, Guiñazú N. Environmental pesticide exposure modulates cytokines, arginase and ornithine decarboxylase expression in human placenta. Reprod Toxicol 2013; 39:23-32. [DOI: 10.1016/j.reprotox.2013.03.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 03/04/2013] [Accepted: 03/21/2013] [Indexed: 11/24/2022]
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Bechi N, Sorda G, Spagnoletti A, Bhattacharjee J, Vieira Ferro EA, de Freitas Barbosa B, Frosini M, Valoti M, Sgaragli G, Paulesu L, Ietta F. Toxicity assessment on trophoblast cells for some environment polluting chemicals and 17β-estradiol. Toxicol In Vitro 2013; 27:995-1000. [PMID: 23337911 DOI: 10.1016/j.tiv.2013.01.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 01/08/2013] [Accepted: 01/09/2013] [Indexed: 12/23/2022]
Abstract
The identification of reproductive toxicants is a major scientific challenge for human health. We investigated the effects of a selected group of environmental polluting chemicals mostly provided with estrogenic activity on the human trophoblast cell lines BeWo and HTR-8/SVneo. Cells were exposed for 24h to various concentrations (from 0.1 pM to 1 mM) of atrazine (ATR), diethylstilbestrol (DES), para-nonylphenol (p-NP), resveratrol (RES) and 17 β-estradiol (E2) and assayed for cell viability and human beta-Chorionic Gonadotropin (β-hCG) secretion. Decrease of cell viability as respect to control, vehicle-treated, cultures was obtained for all chemicals in the concentration range of 1 μM-1 mM in both cell types. A parallel decrease of β-hCG secretion was observed in BeWo cells, at 1 μM-1 mM concentrations, with the only exception of ATR which caused an increase at concentrations up to 1mM. β-hCG release was also unexpectedly inhibited by ATR, DES, p-NP and RES at non-toxic (pM-nM) concentrations. These findings raise concern about the negative, potential effects of various environmental polluting chemicals on pregnancy success and fetal health.
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Affiliation(s)
- N Bechi
- San Carlo Clinic, Paderno Dugnano, Milano, Italy.
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Wang Y, Hu H, Zhao M, Zhao J, Yin D, Sun X, Liu S, Gao Q, Yu L, Hao L. Nonylphenol disrupts the cardio-protective effects of 17β-estradiol on ischemia/reperfusion injury in isolated hearts of guinea pig. J Toxicol Sci 2013; 38:731-40. [DOI: 10.2131/jts.38.731] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Yan Wang
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
- Department of Pharmacy, Beihai People’s Hospital, China
| | - Huiyuan Hu
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
| | - Meimi Zhao
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
| | - Jinsheng Zhao
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
| | - Dandan Yin
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
| | - Xuefei Sun
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
| | - Shuyuan Liu
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
| | - Qinghua Gao
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
- Department of Physiology, School of Basic Medical Sciences, China Medical University, China
| | - Lifeng Yu
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
| | - Liying Hao
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Sciences, China Medical University, China
- Cardiovascular Institute of China Medical University, China
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Effects of acupuncture on Th1, th2 cytokines in rats of implantation failure. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:893023. [PMID: 22315633 PMCID: PMC3270570 DOI: 10.1155/2012/893023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 09/15/2011] [Indexed: 11/28/2022]
Abstract
The aim is to explore the effect of acupuncture on Th1, Th2 cytokines in rats of implantation failure. Early pregnant rats were randomized into normal group (N), implantation failure group (M), acupuncture group (A), progestin group (H). The model was established with mifepristone. Samples of serum, endometrium were collected on Day 5, 6 and 8 of pregnancy. Compared with group M, the number of embryos was significantly higher in groups N, A and H; IL-1β, IL-2 protein in serum and endometrium were significantly lower in groups N, A and H, while IL-4, IL-10 were significantly higher in groups N, A and H; the endometrial IL-2, IL-4 mRNA were significantly lower in groups N, A and H, while IL-1β, IL-10 mRNA were significantly higher in groups N, A and H. Acupuncture could improve the poor receptive state of endometrium due to mifepristone by promoting Th2 cytokines secretion and inhibiting Th1 cytokines to improve blastocyst implantation.
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Yu PL, Lin HW, Wang SW, Wang PS. Effects of nonylphenol on the production of progesterone on the rats granulosa cells. J Cell Biochem 2011; 112:2627-36. [PMID: 21598305 DOI: 10.1002/jcb.23189] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We investigated the effects of nonylphenol (NP) on release of progesterone (PG) by granulosa cells (GCs) of rats in vitro and in vivo. First, GCs were treated with different doses of NP for 2-24 h alone or with human chorionic gonadotropin (hCG). Maximal PG secretion at 8 h noted, GCs were treated for 2 h with hCG, 8-bromo-adenosine 3':5'-cyclic monophosphate (8-Br-cAMP), forskolin, A23187, nifedipine, and pregnelonone to evaluate the NP effects on PG steroidogenesis. Results indicated that all of chemicals except nifedipine stimulated the PG release compared to vehicle, but the stimulatory effects could not be enhanced by different doses of NP. Second, GCs were isolated to react with hCG, 8-Br-cAMP and PD98059 after the immature female rats gavaged with different doses of NP (ONP) for 7 days. PG released significantly when rats treated with oral NP 100 compared to 0 µg/kg/day. Third, GCs collected from the female offspring of mother rats which gavaged with NP 100 µg/kg/day for 21 days during pregnancy (MONP) reacted with different doses of chemicals. The results showed that PG release in the presence of chemicals was significantly higher in ONP and MONP groups; however, this stimulation was not noted by dose-dependent. The plasma concentration of PG was higher in ONP (100 µg/kg/day) and the offspring of MONP groups. The steroidogenic acute regulatory (StAR) protein expressed higher in all three groups by Western blotting. This study results indicated that low dose of NP stimulated PG release in rat GCs by activation of StAR protein.
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Affiliation(s)
- Po-Ling Yu
- Department of Surgery, Taipei City Hospital, Taipei 10431, Taiwan, Republic of China
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Chen F, Zhang Q, Wang C, Lu Y, Zhao M. Enantioselectivity in estrogenicity of the organochlorine insecticide acetofenate in human trophoblast and MCF-7 cells. Reprod Toxicol 2011; 33:53-9. [PMID: 22119440 DOI: 10.1016/j.reprotox.2011.10.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Revised: 08/20/2011] [Accepted: 10/31/2011] [Indexed: 11/16/2022]
Abstract
Previous studies have showed that some chiral pesticides with estrogenic activity possess enantioselectivity in endocrine disruption. Despite the assessment of enantioselectivity in the estrogenic potential of chiral pesticides, which deserve particular attention, there has been limited research into their molecular mechanisms of human health risk. In this study, the role of enantioselectivity in the endocrine disruption and potential human maternal-fetal health risk of acetofenate (AF), an organochlorine insecticide, were investigated in both MCF-7 and JEG-3 cells. The two in vitro assays showing a clear enantioselectivity in the estrogenic activity with S-(+)-AF showed stronger effects than R-(-)-AF and rac-AF. Moreover, the racemate's estrogenicity was in between that of enantiomers. Our results also demonstrated that S-(+)-AF possesses the strongest potential effects in disruption of hormone secretion, maternal immune tolerance, and steroidogenesis in the trophoblast. The results suggest that assessment of the health risk of chiral contaminants should consider the role of enantioselectivity.
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Affiliation(s)
- Fang Chen
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, People's Republic of China
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Passage of 4-nonylphenol across the human placenta. Placenta 2011; 32:788-92. [DOI: 10.1016/j.placenta.2011.07.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 07/12/2011] [Accepted: 07/13/2011] [Indexed: 12/17/2022]
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Shan J, Jiang B, Yu B, Li C, Sun Y, Guo H, Wu J, Klumpp E, Schäffer A, Ji R. Isomer-specific degradation of branched and linear 4-nonylphenol isomers in an oxic soil. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:8283-8289. [PMID: 21823570 DOI: 10.1021/es200224c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Using (14)C- and (13)C-ring-labeling, degradation of five p-nonylphenol (4-NP) isomers including four branched (4-NP(38), 4-NP(65), 4-NP(111), and 4-NP(112)) and one linear (4-NP(1)) isomers in a rice paddy soil was studied under oxic conditions. Degradation followed an availability-adjusted first-order kinetics with the decreasing order of half-life 4-NP(111) (10.3 days) > 4-NP(112) (8.4 days) > 4-NP(65) (5.8 days) > 4-NP(38) (2.1 days) > 4-NP(1) (1.4 days), which is in agreement with the order of their reported estrogenicities. One metabolite of 4-NP(111) with less polarity than the parent compound occurred rapidly and remained stable in the soil. At the end of incubation (58 days), bound residues of 4-NP(111) amounted to 54% of the initially applied radioactivity and resided almost exclusively in the humin fraction of soil organic matter, in which chemically humin-bound residues increased over incubation. Our results indicate an increase of specific estrogenicity of the remaining 4-NPs in soil as a result of the isomer-specific degradation and therefore underline the importance of understanding the individual fate (including degradation, metabolism, and bound-residue formation) of isomers for risk assessment of 4-NPs in soil. 4-NP(1) should not be used as a representative of 4-NPs for studies on their environmental behavior.
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Affiliation(s)
- Jun Shan
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University , 163 Xianlin Avenue, 210046 Nanjing, China
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Vallejo A, Olivares M, Fernández L, Etxebarria N, Arrasate S, Anakabe E, Usobiaga A, Zuloaga O. Optimization of comprehensive two dimensional gas chromatography-flame ionization detection–quadrupole mass spectrometry for the separation of octyl- and nonylphenol isomers. J Chromatogr A 2011; 1218:3064-9. [DOI: 10.1016/j.chroma.2011.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 02/17/2011] [Accepted: 03/08/2011] [Indexed: 11/28/2022]
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Guruge KS, Horii Y, Yamashita N. Profiles of nonylphenol isomers in surface waters from Sri Lanka. MARINE POLLUTION BULLETIN 2011; 62:870-873. [PMID: 21316713 DOI: 10.1016/j.marpolbul.2011.01.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 01/11/2011] [Accepted: 01/17/2011] [Indexed: 05/30/2023]
Abstract
Isomer-specific concentrations of nonylphenol (NP) and their predicted estrogenic potency were investigated in Sri Lankan waters for the first time. The total concentration of 13 NP isomers ranged from 90 to 1835 ng/L, while the predicted estrogenic equivalent concentration ranged from 0.072 to 1.38 ng 17β-estradiol (E2)/L. Bire Lake, located in the central area of the commercial capital, Colombo, had the highest contamination among the studied locations. These data show that NP levels in Sri Lankan waters are well within the recently reported concentrations in other regions of the world. The spatial differences in NP concentrations suggest that NP contamination in Sri Lanka may be widespread, and comprehensive study is vital.
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Affiliation(s)
- Keerthi S Guruge
- Safety Research Team, National Institute of Animal Health, National Agriculture and Food Research Organization, Kannondai 3-1-5, Tsukuba, Ibaraki 305-0856, Japan.
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