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Diuron exposure and Akt overexpression promote glioma formation through DNA hypomethylation. Clin Epigenetics 2019; 11:159. [PMID: 31727122 PMCID: PMC6854743 DOI: 10.1186/s13148-019-0759-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 10/01/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Diuron is an environmental component listed as a likely human carcinogen. Several other studies report that diuron can be oncogenic for bladder, urothelial, skin, and mammary cells. No study mentions the putative effect of diuron on the glioma occurrence. OBJECTIVES We here wanted to investigate the effects of diuron exposure on the glioma occurrence while wishing to incriminate a putative implication of DNA methylation modulation in this process. METHODS In in vivo model of glioma, diuron exposure was firstly compared or combined with oncogenic overexpressions already known to promote gliomagenesis. ELISA quantifying the 5-methylcytosine level on DNA was performed to examine the global DNA methylation level. Quantitative real-time polymerase chain reaction and proximity ligation in situ assay were performed to identify the molecular causes of the diuron-induced changes of DNA methylation. The signatures diuron-induced changes of DNA methylation were analyzed in a cohort of 23 GBM patients. RESULTS Diuron exposure is not sufficient to promote glioma, such as the oncogenic overexpression of Akt or Ras. However, the combination of diuron exposure and Akt overexpression promotes glioma. We observed that the diuron/Akt-induced glioma is characterized by three phenotypic signatures characterizing cancer cells: a global DNA hypomethylation, a loss of sensitivity to cell death induction, and a gain of signals of immune escape. Our data associated these phenotypes with three aberrant DNA methylation signatures: the LLT1, PD-L1, and Bcl-w hypomethylations. Strikingly, we observed that these three concomitant hypomethylations were only observed in GBM patients having a potential exposure to diuron via their professional activity. CONCLUSIONS As single player, diuron is not an oncogenic of glioma, but it can participate to the glioma formation in association with other events (also devoid of oncogenic property as single player) such as Akt overexpression.
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Liquid chromatography- mass spectrometry for analysis of DNA damages induced by environmental exposure. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.115645] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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53
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Majumdar S, Rinaldi JC, Malhotra NR, Xie L, Hu DP, Gauntner TD, Grewal HS, Hu WY, Kim SH, Katzenellenbogen JA, Kasper S, Prins GS. Differential Actions of Estrogen Receptor α and β via Nongenomic Signaling in Human Prostate Stem and Progenitor Cells. Endocrinology 2019; 160:2692-2708. [PMID: 31433456 PMCID: PMC6804489 DOI: 10.1210/en.2019-00177] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 08/15/2019] [Indexed: 12/21/2022]
Abstract
Human prostate stem and progenitor cells express estrogen receptor (ER)α and ERβ and exhibit proliferative responses to estrogens. In this study, membrane-initiated estrogen signaling was interrogated in human prostate stem/progenitor cells enriched from primary epithelial cultures and stem-like cell lines from benign and cancerous prostates. Subcellular fractionation and proximity ligation assays localized ERα and ERβ to the cell membrane with caveolin-1 interactions. Exposure to 17β-estradiol (E2) for 15 to 60 minutes led to sequential phosphorylation of signaling molecules in MAPK and AKT pathways, IGF1 receptor, epidermal growth factor receptor, and ERα, thus documenting an intact membrane signalosome that activates diverse downstream cascades. Treatment with an E2-dendrimer conjugate or ICI 182,870 validated E2-mediated actions through membrane ERs. Overexpression and knockdown of ERα or ERβ in stem/progenitor cells identified pathway selectivity; ERα preferentially activated AKT, whereas ERβ selectively activated MAPK cascades. Furthermore, prostate cancer stem-like cells expressed only ERβ, and brief E2 exposure activated MAPK but not AKT cascades. A gene subset selectively regulated by nongenomic E2 signaling was identified in normal prostate progenitor cells that includes BGN, FOSB, FOXQ1, and MAF. Membrane-initiated E2 signaling rapidly modified histone methyltransferases, with MLL1 cleavage observed downstream of phosphorylated AKT and EZH2 phosphorylation downstream of MAPK signaling, which may jointly modify histones to permit rapid gene transcription. Taken together, the present findings document ERα and ERβ membrane-initiated signaling in normal and cancerous human prostate stem/progenitor cells with differential engagement of downstream effectors. These signaling pathways influence normal prostate stem/progenitor cell homeostasis and provide novel therapeutic sites to target the elusive prostate cancer stem cell population.
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Affiliation(s)
- Shyama Majumdar
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Jaqueline C Rinaldi
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Department of Morphological Sciences, State University of Maringá, Maringá, Paraná, Brazil
| | - Neha R Malhotra
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Lishi Xie
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Dan-Ping Hu
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Timothy D Gauntner
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Harinder S Grewal
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Wen-Yang Hu
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Sung Hoon Kim
- Department of Chemistry, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | | | - Susan Kasper
- Department of Environmental Health, University of Cincinnati, Cincinnati, Ohio
| | - Gail S Prins
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Chicago Center for Health and Environment, University of Illinois at Chicago, Chicago, Illinois
- University of Illinois Cancer Center, Chicago, Illinois
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Rosenfeld CS, Cooke PS. Endocrine disruption through membrane estrogen receptors and novel pathways leading to rapid toxicological and epigenetic effects. J Steroid Biochem Mol Biol 2019; 187:106-117. [PMID: 30465854 PMCID: PMC6370520 DOI: 10.1016/j.jsbmb.2018.11.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/31/2018] [Accepted: 11/18/2018] [Indexed: 01/08/2023]
Abstract
Estrogen binding to estrogen receptors (ESR) triggers signaling cascades within cells. Historically, a major emphasis has been characterizing estrogen-induced genomic actions resulting from binding to nuclear estrogen receptor 1 (nESR1). However, recent evidence indicates the first receptors estrogens encounter as they enter a cell, membrane ESR1 (mESR1), also play crucial roles. Membrane and nuclear ESR are derived from the same transcripts but the former are directed to the membrane via palmitoylation. Binding and activation of mESR1 leads to rapid fluctuations in cAMP and Ca+2 and stimulation of protein kinase pathways. Endocrine disrupting chemicals (EDC) that mimic 17β-estradiol can signal through mESR1 and elicit non-genomic effects. Most current EDC studies have focused on genomic actions via nESR1. However, increasing number of studies have begun to examine potential EDC effects mediated through mESR1, and some EDC might have higher potency for signaling through mESR1 than nESR1. The notion that such chemicals might also affect mESR1 signaling via palmitoylation and depalmitoylation pathways has also begun to gain currency. Recent development of transgenic mice that lack either mESR1 or nESR1, while retaining functional ESR1 in the other compartment, will allow more precise in vivo approaches to determine EDC effects through nESR1 and/or mESR1. It is increasingly becoming apparent in this quickly evolving field that EDC directly affect mESR and estrogen signaling, but such chemicals can also affect proportion of ESR reaching the membrane. Future EDC studies should be designed to consider the full range of effects through mESR alone and in combination with nESR.
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Affiliation(s)
- Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA; Thompson Center for Autism and Neurobehavioral Disorders, Columbia, MO, 65211, USA.
| | - Paul S Cooke
- Department of Physiological Sciences, University of Florida, Gainesville, FL, 32610, USA.
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Sheng Z, Wang C, Ren F, Liu Y, Zhu B. Molecular mechanism of endocrine-disruptive effects induced by Bisphenol A: The role of transmembrane G-protein estrogen receptor 1 and integrin αvβ3. J Environ Sci (China) 2019; 75:1-13. [PMID: 30473274 DOI: 10.1016/j.jes.2018.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 06/09/2023]
Abstract
Bisphenol A (BPA) is one of the highest volume industrial products worldwide and has been widely used to make various products as the intermediates of polycarbonate plastics and epoxy resins. Inevitably, general population has been widely exposed to BPA due to extensive use of BPA-containing products. BPA has similar chemical structure with the natural estrogen and has been shown to induce a variety of estrogen-like endocrine effects on organism in vivo or in vitro. High doses of BPA tend to act as antagonist of estrogen receptors (ERs) by directly regulating the genomic transcription. However, BPA at environmentally relevant low-dose always disrupt the biological function via a non-genomic manner mediated by membrane receptors, rather than ERs. Although some studies had investigated the non-genomic effects of low-dose BPA, the exact molecular mechanism still remains unclear. Recently, we found that membrane G protein-coupled estrogen receptor 1 and integrin αvβ3 and its relative signal pathways participate in the induction of male germ cell proliferation and thyroid transcription disruption by the low-dose BPA. A profound understanding for the mechanism of action of the environmentally relevant BPA exposure not only contributes to objectively evaluate and predict the potential influence to human health, but also provides theoretical basis and methodological support for assessing health effects trigged by other estrogen-like environmental endocrine disruptors. Based mainly on our recent findings, this review outlines the research progress of molecular mechanism on endocrine disrupting effects of environmental low-dose BPA, existing problems and some consideration for future studies.
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Affiliation(s)
- Zhiguo Sheng
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Cong Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Furong Ren
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yuxiang Liu
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Benzhan Zhu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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56
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Prins GS, Hu WY, Xie L, Shi GB, Hu DP, Birch L, Bosland MC. Evaluation of Bisphenol A (BPA) Exposures on Prostate Stem Cell Homeostasis and Prostate Cancer Risk in the NCTR-Sprague-Dawley Rat: An NIEHS/FDA CLARITY-BPA Consortium Study. ENVIRONMENTAL HEALTH PERSPECTIVES 2018; 126:117001. [PMID: 30387366 PMCID: PMC6371765 DOI: 10.1289/ehp3953] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND Previous work determined that early life exposure to low-dose Bisphenol A (BPA) increased rat prostate cancer risk with aging. Herein, we report on prostate-specific results from CLARITY-BPA (Consortium Linking Academic and Regulatory Insights on BPA Toxicity), which aims to resolve uncertainties regarding BPA toxicity. OBJECTIVES We sought to a) reassess whether a range of BPA exposures drives prostate pathology and/or alters prostatic susceptibility to hormonal carcinogenesis, and b) test whether chronic low-dose BPA targets prostate epithelial stem and progenitor cells. METHODS Sprague-Dawley rats were gavaged daily with vehicle, ethinyl estradiol (EE) or [Formula: see text] BPA/kg-BW during development or chronically, and prostate pathology was assessed at one year. One developmentally exposed cohort was given testosterone plus estradiol ([Formula: see text]) implants at day 90 to promote carcinogenesis with aging. Epithelial stem and progenitor cells were isolated by prostasphere (PS) culture from dorsolateral prostates (DLP) of rats continuously exposed for six months to [Formula: see text] BPA/kg-BW. Gene expression was analyzed by quantitative real time reverse transcription polymerase chain reaction (qRT-PCR). RESULTS Exposure to BPA alone at any dose did not drive prostate pathology. However, rats treated with EE, 2.5, 250, or [Formula: see text] BPA/kg-BW plus [Formula: see text] showed greater severity of lateral prostate intraepithelial neoplasia (PIN), and DLP ductal adenocarcinoma multiplicity was markedly elevated in tumor-bearing rats exposed to [Formula: see text]-BW. DLP stem cells, assessed by PS number, doubled with chronic EE and [Formula: see text] exposures. PS size, reflecting progenitor cell proliferation, was greater at 25 and [Formula: see text] BPA doses, which also shifted lineage commitment toward basal progenitors while reducing luminal progenitor cells. CONCLUSIONS Together, these results confirm and extend previous evidence using a rat model and human prostate epithelial cells that low-dose BPA augments prostate cancer susceptibility and alters adult prostate stem cell homeostasis. Therefore, we propose that BPA exposures may contribute to the increased carcinogenic risk in humans that occurs with aging. https://doi.org/10.1289/EHP3953.
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Affiliation(s)
- Gail S Prins
- Department of Urology, College of Medicine, University of Illinois at Chicago (UIC), Chicago, Illinois, USA
- University of Illinois Cancer Center, Chicago, Illinois, USA
- Chicago Center for Health and Environment, University of Illinois at Chicago, Chicago, Illinois, USA
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Wen-Yang Hu
- Department of Urology, College of Medicine, University of Illinois at Chicago (UIC), Chicago, Illinois, USA
- Chicago Center for Health and Environment, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Lishi Xie
- Department of Urology, College of Medicine, University of Illinois at Chicago (UIC), Chicago, Illinois, USA
- Chicago Center for Health and Environment, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Guang-Bin Shi
- Department of Urology, College of Medicine, University of Illinois at Chicago (UIC), Chicago, Illinois, USA
| | - Dan-Ping Hu
- Department of Urology, College of Medicine, University of Illinois at Chicago (UIC), Chicago, Illinois, USA
| | - Lynn Birch
- Department of Urology, College of Medicine, University of Illinois at Chicago (UIC), Chicago, Illinois, USA
| | - Maarten C Bosland
- Chicago Center for Health and Environment, University of Illinois at Chicago, Chicago, Illinois, USA
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
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Prins GS, Patisaul HB, Belcher SM, Vandenberg LN. CLARITY-BPA academic laboratory studies identify consistent low-dose Bisphenol A effects on multiple organ systems. Basic Clin Pharmacol Toxicol 2018; 125 Suppl 3:14-31. [PMID: 30207065 DOI: 10.1111/bcpt.13125] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 08/31/2018] [Indexed: 12/13/2022]
Abstract
Bisphenol A (BPA) is a high-production chemical used in a variety of applications worldwide. While BPA has been documented as an endocrine-disrupting chemical (EDC) having adverse health-related outcomes in multiple studies, risk assessment for BPA has lagged due to reliance on guideline toxicology studies over academic ones with end-points considered more sensitive and appropriate. To address current controversies on BPA safety, the United States National Institute of Environmental Health Sciences (NIEHS), the National Toxicology Program (NTP) and the Food and Drug Administration (FDA) established the Consortium Linking Academic and Regulatory Insights on BPA Toxicity (CLARITY-BPA) using the NCTR Sprague-Dawley rats. The goal of CLARITY-BPA is to perform a traditional regulatory toxicology study (Core study) in conjunction with multiple behavioural, molecular and cellular studies by academic laboratories focused on previously identified BPA-sensitive organ systems (Academic studies). Combined analysis of the data from both study types will be undertaken by the NTP with the aim of resolving uncertainties on BPA toxicity. To date, the Core study has been completed and a draft report released. Most of the academic studies have also been finalized and published in peer-reviewed journals. In light of this important milestone, the PPTOX-VI meeting held in the Faroe Islands, 27-30 May 2018 devoted a plenary session to CLARITY-BPA with presentations by multiple investigators with the purpose of highlighting key outcome. This MiniReview synthesizes the results of three academic studies presented at this plenary session, evaluates recently published findings by other CLARITY-BPA academic studies to provide an early combined overview of this emerging data and places this in the context of the Core study findings. This co-ordinated effort revealed a plethora of significant BPA effects across multiple organ systems and BPA doses with non-monotonic responses across the dose range utilized. Remarkably consistent across most studies, including the Core study, are low-dose effects (2.5, 25 and 250 μg BPA/kg body-weight). Collectively, the findings highlighted herein corroborate a significant body of evidence that documents adverse effects of BPA at doses relevant to human exposures and emphasizes the need for updated risk assessment analysis.
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Affiliation(s)
- Gail S Prins
- Departments of Urology, Pathology, and Physiology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois.,Division of Epidemiology & Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, Illinois.,Chicago Center for Health and Environment (CACHET), University of Illinois at Chicago, Chicago, Illinois
| | - Heather B Patisaul
- Department of Biological Sciences and the Center for Human Health and the Environment (CHHE), North Carolina State University, Raleigh, North Carolina
| | - Scott M Belcher
- Department of Biological Sciences and the Center for Human Health and the Environment (CHHE), North Carolina State University, Raleigh, North Carolina
| | - Laura N Vandenberg
- Department of Environmental Health Sciences, University of Massachusetts-Amherst, School of Public Health & Health Sciences, Amherst, Massachusetts
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58
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Omran GA, Gaber HD, Mostafa NAM, Abdel-Gaber RM, Salah EA. Potential hazards of bisphenol A exposure to semen quality and sperm DNA integrity among infertile men. Reprod Toxicol 2018; 81:188-195. [DOI: 10.1016/j.reprotox.2018.08.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 08/07/2018] [Accepted: 08/09/2018] [Indexed: 11/25/2022]
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59
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Estrogens and prostate cancer. Prostate Cancer Prostatic Dis 2018; 22:185-194. [PMID: 30131606 DOI: 10.1038/s41391-018-0081-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/30/2018] [Accepted: 07/13/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Hormonal influences such as androgens and estrogens are known contributors in the development and progression of prostate cancer (CaP). While much of the research to the hormonal nature of CaP has focused on androgens, estrogens also have critical roles in CaP development, physiology as well as a potential therapeutic intervention. METHODS In this review, we provide a critical literature review of the current basic science and clinical evidence for the interaction between estrogens and CaP. RESULTS Estrogenic influences in CaP include synthetic, endogenous, fungi and plant-derived compounds, and represent a family of sex hormones, which cross hydrophobic cell membranes and bind to membrane-associated receptors and estrogen receptors that localize to the nucleus triggering changes in gene expression in various organ systems. CONCLUSIONS Estrogens represent a under-recognized contributor in CaP development and progression. Further research in this topic may provide opportunities for identification of environmental influencers as well as providing novel therapeutic targets in the treatment of CaP.
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Spörndly-Nees E, Boberg J, Ekstedt E, Holm L, Fakhrzadeh A, Dunder L, Kushnir MM, Lejonklou MH, Lind PM. Low-dose exposure to Bisphenol A during development has limited effects on male reproduction in midpubertal and aging Fischer 344 rats. Reprod Toxicol 2018; 81:196-206. [PMID: 30121228 DOI: 10.1016/j.reprotox.2018.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/26/2018] [Accepted: 08/02/2018] [Indexed: 11/27/2022]
Abstract
Low doses of Bisphenol A (BPA) during development may affect reproduction. In this study, Fischer 344 rats were exposed to 0.5 or 50 μg BPA/kg bw/day via drinking water from gestational day 3.5 to postnatal day 22. Anogenital distance, organ weight, histopathology of reproductive organs, hormone analysis and sperm morphology were evaluated in male offspring. In this study no major effects of BPA on male reproduction in midpubertal (postnatal day 35) or adult (12-month-old) rats were revealed, apart from a higher prevalence of mild inflammatory cell infiltrate in cauda epididymis in adult rats exposed to 50 μg BPA/kg bw/day. No BPA-related effects on sexual development were seen but care should be taken when evaluating histopathology in midpuberty testis due to large morphological variation. Results from the present study show no major signs of altered male reproduction in rats exposed to low doses of BPA during gestation and lactation.
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Affiliation(s)
- Ellinor Spörndly-Nees
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 75007, Sweden.
| | - Julie Boberg
- Division of Diet, Disease Prevention and Toxicology, Technical University of Denmark, Building 202, 2800 Kgs Lyngby, Denmark
| | - Elisabeth Ekstedt
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 75007, Sweden
| | - Lena Holm
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 75007, Sweden
| | - Azadeh Fakhrzadeh
- Iranian Research Institute for Information Science and Technology (IranDoc) Tehran Province, No. 1090, Enghelab, Tehran, Iran
| | - Linda Dunder
- Department of Medical Sciences, Occupational and Environmental Medicine, Akademiska sjukhuset, 751 85 Uppsala, Uppsala University, Sweden
| | - Mark M Kushnir
- ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, UT 84108, USA; Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Margareta H Lejonklou
- Department of Medical Sciences, Occupational and Environmental Medicine, Akademiska sjukhuset, 751 85 Uppsala, Uppsala University, Sweden
| | - P Monica Lind
- Department of Medical Sciences, Occupational and Environmental Medicine, Akademiska sjukhuset, 751 85 Uppsala, Uppsala University, Sweden
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Cheong A, Johnson SA, Howald EC, Ellersieck MR, Camacho L, Lewis SM, Vanlandingham MM, Ying J, Ho SM, Rosenfeld CS. Gene expression and DNA methylation changes in the hypothalamus and hippocampus of adult rats developmentally exposed to bisphenol A or ethinyl estradiol: a CLARITY-BPA consortium study. Epigenetics 2018; 13:704-720. [PMID: 30001178 DOI: 10.1080/15592294.2018.1497388] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Bisphenol A (BPA), an endocrine disrupting chemical (EDC), is a ubiquitous pollutant. As part of the Consortium Linking Academic and Regulatory Insights on BPA Toxicity (CLARITY-BPA), we sought to determine whether exposure of Sprague-Dawley rats to 2,500 μg/kg/day BPA (BPA) or 0.5 μg/kg/day ethinyl estradiol (EE) from gestational day 6 through postnatal day 21 induces behavior-relevant gene expression and DNA methylation changes in hippocampus and hypothalamus at adulthood. RNA and DNA were isolated from both regions. Expression of ten genes (Dnmt1, Dnmt3a, Dnmt3b, Esr1, Esr2, Avp, Ar, Oxt, Otr, and Bdnf) presumably altered by early-life BPA/EE exposure was examined. Three genes (Bdnf, Dnmt3b, and Esr1) were studied for DNA methylation changes in their putative 5' promoter regions. Molecular changes in hippocampus were correlated to prior Barnes maze performance, including sniffing correct holes, distance traveled, and velocity. Exposure to BPA and/or EE disrupted patterns of sexually dimorphic gene expression/promoter DNA methylation observed in hippocampus and hypothalamus of controls. In the hippocampus of female offspring, BPA exposure resulted in hypermethylation of the putative 5' promoter region of Bdnf, while EE exposure induced hypomethylation. Bdnf methylation was weakly associated with Bdnf expression in hippocampi of female rats. Hippocampal Bdnf expression in females showed a weak negative association with sniffing correct hole in Barnes maze. Hippocampal expression of Avp, Esr2, Oxt, and Otr was strongly associated with velocity of control rats in Barnes maze. Findings suggest BPA exposure induced non-EE-like gene expression and epigenetic changes in adult rat hippocampi, a region involved in spatial navigation.
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Affiliation(s)
- Ana Cheong
- a Department of Environmental Health , University of Cincinnati College of Medicine , Cincinnati , OH , USA.,b Center for Environmental Genetics , Department of Environmental Health, University of University of Cincinnati College of Medicine , Cincinnati , OH , USA
| | - Sarah A Johnson
- c Biomedical Sciences , University of Missouri , Columbia , MO , USA.,d Bond Life Sciences Center , University of Missouri , Columbia , MO , USA.,e Animal Sciences , University of Missouri , Columbia , MO , USA
| | - Emily C Howald
- c Biomedical Sciences , University of Missouri , Columbia , MO , USA.,d Bond Life Sciences Center , University of Missouri , Columbia , MO , USA
| | - Mark R Ellersieck
- f Agriculture Experimental Station-Statistics , University of Missouri , Columbia , MO , USA
| | - Luísa Camacho
- g Division of Biochemical Toxicology , National Center for Toxicological Research/Food and Drug Administration , Jefferson , AR , USA
| | - Sherry M Lewis
- h Office of Scientific Coordination , National Center for Toxicological Research/Food and Drug Administration , Jefferson , AR , USA
| | - Michelle M Vanlandingham
- g Division of Biochemical Toxicology , National Center for Toxicological Research/Food and Drug Administration , Jefferson , AR , USA
| | - Jun Ying
- a Department of Environmental Health , University of Cincinnati College of Medicine , Cincinnati , OH , USA.,i Center for Biostatistical Service , University of Cincinnati College of Medicine , Cincinnati , OH , USA
| | - Shuk-Mei Ho
- a Department of Environmental Health , University of Cincinnati College of Medicine , Cincinnati , OH , USA.,b Center for Environmental Genetics , Department of Environmental Health, University of University of Cincinnati College of Medicine , Cincinnati , OH , USA.,j Cincinnati Cancer Center , Cincinnati , OH , USA.,k Research Unit, Cincinnati Veteran Affairs Hospital Medical Center , Cincinnati , OH , USA
| | - Cheryl S Rosenfeld
- c Biomedical Sciences , University of Missouri , Columbia , MO , USA.,d Bond Life Sciences Center , University of Missouri , Columbia , MO , USA.,l Genetics Area Program , University of Missouri , Columbia , MO , USA.,m Thompson Center for Autism and Neurobehavioral Disorders , University of Missouri , Columbia , MO , USA
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Santos SAA, Camargo AC, Constantino FB, Colombelli KT, Mani F, Rinaldi JC, Franco S, Portela LMF, Duran BOS, Scarano WR, Hinton BT, Felisbino SL, Justulin LA. Maternal Low-Protein Diet Impairs Prostate Growth in Young Rat Offspring and Induces Prostate Carcinogenesis With Aging. J Gerontol A Biol Sci Med Sci 2018; 74:751-759. [DOI: 10.1093/gerona/gly118] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 01/02/2023] Open
Affiliation(s)
- Sergio A A Santos
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Ana C Camargo
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | | | - Ketlin T Colombelli
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Fernanda Mani
- Department of Chemistry and Biochemistry, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Jaqueline C Rinaldi
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Suelen Franco
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Luiz M F Portela
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Bruno O S Duran
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Wellerson R Scarano
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Barry T Hinton
- Department of Cell Biology, University of Virginia Health System, Charlottesville
| | - Sergio L Felisbino
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
| | - Luis A Justulin
- Department of Morphology, Institute of Biosciences, UNESP, Botucatu, SP, Brazil
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Wang M, Rang O, Liu F, Xia W, Li Y, Zhang Y, Lu S, Xu S. A systematic review of metabolomics biomarkers for Bisphenol A exposure. Metabolomics 2018; 14:45. [PMID: 30830327 DOI: 10.1007/s11306-018-1342-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 12/30/2017] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Bisphenol A (BPA), 2,2-bis(4-hydroxyphenyl) propane, a common industrial chemical which has extremely huge production worldwide, is ubiquitous in the environment. Human have high risk of exposing to BPA and the health problems caused by BPA exposure have aroused public concern. However, the biomarkers for BPA exposure are lacking. As a rapidly developing subject, metabolomics has accumulated a large amount of valuable data in various fields. The secondary application of published metabolomics data could be a very promising field for generating novel biomarkers whilst further understanding of toxicity mechanisms. OBJECTIVES To summarize the published literature on the use of metabolomics as a tool to study BPA exposure and provide a systematic perspectives of current research on biomarkers screening of BPA exposure. METHODS We conducted a systematic search of MEDLINE (PubMed) up to the end of June 25, 2017 with the key term combinations of 'metabolomics', 'metabonomics', 'mass spectrometry', 'nuclear magnetic spectroscopy', 'metabolic profiling' and 'amino acid profile' combined with 'BPA exposure'. Additional articles were identified through searching the reference lists from included studies. RESULTS This systematic review included 15 articles. Intermediates of glycolysis, Krebs cycle, β oxidation of long chain fatty acids, pentose phosphate pathway, nucleoside metabolism, branched chain amino acid metabolism, aromatic amino acids metabolism, sulfur-containing amino acids metabolism were significantly changed after BPA exposure, suggesting BPA had a highly complex toxic effects on organism which was consistent with existing studies. The biomarkers most consistently associated with BPA exposure were lactate and choline. CONCLUSION Existing metabolomics studies of BPA exposure present heterogeneous findings regarding metabolite profile characteristics. We need more evidence from target metabolomics and epidemiological studies to further examine the reliability of these biomarkers which link to low, environmentally relevant, exposure of BPA in human body.
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Affiliation(s)
- Mu Wang
- School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Ouyan Rang
- School of Public Health, University of South China, Hengyang, Hunan, People's Republic of China
| | - Fang Liu
- School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yu Zhang
- School of Computer and Information Technology, Xinyang Normal University, Xinyang, Henan, People's Republic of China
| | - Songfeng Lu
- School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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Castro B, Sánchez P, Torres JM, Ortega E. Effects of perinatal exposure to bisphenol A on the intraprostatic levels of aromatase and 5α-reductase isozymes in juvenile rats. Food Chem Toxicol 2018; 115:20-25. [PMID: 29501275 DOI: 10.1016/j.fct.2018.02.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/12/2018] [Accepted: 02/27/2018] [Indexed: 10/17/2022]
Abstract
The impact of bisphenol A (BPA) on the prostate gland has taken center stage, with a special focus placed on understanding how BPA affects prostate physiopathology. In this study, we evaluated the ability of lower doses of BPA to induce alterations in 5α-R isozymes and aromatase, in the prostate of juvenile rats exposed during developmental stage. Gestating Wistar rats were treated s.c with either vehicle or BPA (2.4 and 10 μg/kg b.w./day) from gestational day 12 to parturition. Then, male pups were s.c treated from postnatal day 1 through day 21, when they were euthanized and qRT-PCR, western blot and hormone levels determination were performed. We found that BPA at dose of 2.4 and 10 μg/kg b.w./day significantly decreased the mRNA and protein levels of 5α-R2. However, neither 5α-R1 nor 5α-R3 was affected by this exposure. BPA at dose of 10 μg/kg b.w./day significantly increased the mRNA and protein levels of aromatase. BPA also decreased plasma levels of both testosterone and dihydrotestosterone and increased estradiol. These data lend support that low-dose BPA during fetal and neonatal prostate development interfere with in situ estrogen and androgen production in the prostate gland of juvenile rats through the enzymes aromatase and 5α-Reductase.
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Affiliation(s)
- Beatriz Castro
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Granada, 11 Avenue of Research, 18016, Granada, Spain
| | - Pilar Sánchez
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Granada, 11 Avenue of Research, 18016, Granada, Spain
| | - Jesús M Torres
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Granada, 11 Avenue of Research, 18016, Granada, Spain; Faculty of Medicine, Institute of Neurosciences, University of Granada, 11 Avenue of Research, 18016, Granada, Spain.
| | - Esperanza Ortega
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Granada, 11 Avenue of Research, 18016, Granada, Spain; Faculty of Medicine, Institute of Neurosciences, University of Granada, 11 Avenue of Research, 18016, Granada, Spain.
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Ideta-Otsuka M, Igarashi K, Narita M, Hirabayashi Y. Epigenetic toxicity of environmental chemicals upon exposure during development - Bisphenol A and valproic acid may have epigenetic effects. Food Chem Toxicol 2017; 109:812-816. [DOI: 10.1016/j.fct.2017.09.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/04/2017] [Accepted: 09/06/2017] [Indexed: 12/20/2022]
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