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Kinkade JA, Seetharam AS, Sachdev S, Bivens NJ, Phinney BS, Grigorean G, Roberts RM, Tuteja G, Rosenfeld CS. Extracellular vesicles from mouse trophoblast cells: Effects on neural progenitor cells and potential participants in the placenta-brain axis†. Biol Reprod 2024; 110:310-328. [PMID: 37883444 PMCID: PMC10873279 DOI: 10.1093/biolre/ioad146] [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: 01/31/2023] [Revised: 10/12/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023] Open
Abstract
The fetal brain of the mouse is thought to be dependent upon the placenta as a source of serotonin (5-hydroxytryptamine; 5-HT) and other factors. How factors reach the developing brain remains uncertain but are postulated here to be part of the cargo carried by placental extracellular vesicles (EV). We have analyzed the protein, catecholamine, and small RNA content of EV from mouse trophoblast stem cells (TSC) and TSC differentiated into parietal trophoblast giant cells (pTGC), potential primary purveyors of 5-HT. Current studies examined how exposure of mouse neural progenitor cells (NPC) to EV from either TSC or pTGC affect their transcriptome profiles. The EV from trophoblast cells contained relatively high amounts of 5-HT, as well as dopamine and norepinephrine, but there were no significant differences between EV derived from pTGC and from TSC. Content of miRNA and small nucleolar (sno)RNA, however, did differ according to EV source, and snoRNA were upregulated in EV from pTGC. The primary inferred targets of the microRNA (miRNA) from both pTGC and TSC were mRNA enriched in the fetal brain. NPC readily internalized EV, leading to changes in their transcriptome profiles. Transcripts regulated were mainly ones enriched in neural tissues. The transcripts in EV-treated NPC that demonstrated a likely complementarity with miRNA in EV were mainly up- rather than downregulated, with functions linked to neuronal processes. Our results are consistent with placenta-derived EV providing direct support for fetal brain development and being an integral part of the placenta-brain axis.
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Affiliation(s)
- Jessica A Kinkade
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - Arun S Seetharam
- Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, IA, USA
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, USA
| | - Shrikesh Sachdev
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - Nathan J Bivens
- Genomics Technology Core Facility, University of Missouri, Columbia, MO, USA
| | - Brett S Phinney
- Proteomics Core UC Davis Genome Center, University of California, Davis, CA, USA
| | - Gabriela Grigorean
- Proteomics Core UC Davis Genome Center, University of California, Davis, CA, USA
| | - R Michael Roberts
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - Geetu Tuteja
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, USA
| | - Cheryl S Rosenfeld
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
- MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, USA
- Genetics Area Program, University of Missouri, Columbia, MO, USA
- Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO, USA
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Howdeshell KL, Beverly BEJ, Blain RB, Goldstone AE, Hartman PA, Lemeris CR, Newbold RR, Rooney AA, Bucher JR. Evaluating endocrine disrupting chemicals: A perspective on the novel assessments in CLARITY-BPA. Birth Defects Res 2023; 115:1345-1397. [PMID: 37646438 DOI: 10.1002/bdr2.2238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/17/2023] [Accepted: 07/31/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND The Consortium Linking Academic and Regulatory Insights on Bisphenol A Toxicity (CLARITY-BPA) was a collaborative research effort to better link academic research with governmental guideline studies. This review explores the secondary goal of CLARITY-BPA: to identify endpoints or technologies from CLARITY-BPA and prior/concurrent literature from these laboratories that may enhance the capacity of rodent toxicity studies to detect endocrine disrupting chemicals (EDCs). METHODS A systematic literature search was conducted with search terms for BPA and the CLARITY-BPA participants. Relevant studies employed a laboratory rodent model and reported results on 1 of the 10 organs/organ systems evaluated in CLARITY-BPA (brain and behavior, cardiac, immune, mammary gland, ovary, penile function, prostate gland and urethra, testis and epididymis, thyroid hormone and metabolism, and uterus). Study design and findings were summarized, and a risk-of-bias assessment was conducted. RESULTS Several endpoints and methods were identified as potentially helpful to detect effects of EDCs. For example, molecular and quantitative morphological approaches were sensitive in detecting alterations in early postnatal development of the brain, ovary, and mammary glands. Hormone challenge studies mimicking human aging reported increased susceptibility of the prostate to disease following developmental BPA exposure. Statistical analyses for nonmonotonic dose responses, and computational approaches assessing multiple treatment-related outcomes concurrently in linked hormone-sensitive organ systems, reported effects at low BPA doses. CONCLUSIONS This review provided an opportunity to evaluate the unique insights provided by nontraditional assessments in CLARITY-BPA to identify technologies and endpoints to enhance detection of EDCs in future studies.
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Affiliation(s)
- Kembra L Howdeshell
- Division of Translational Toxicology, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, North Carolina, USA
| | - Brandiese E J Beverly
- Division of Translational Toxicology, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, North Carolina, USA
| | | | | | | | | | - Retha R Newbold
- Division of Translational Toxicology, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, North Carolina, USA
- NIEHS, retired, Research Triangle Park, North Carolina, United States
| | - Andrew A Rooney
- Division of Translational Toxicology, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, North Carolina, USA
| | - John R Bucher
- Division of Translational Toxicology, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, North Carolina, USA
- NIEHS, retired, Research Triangle Park, North Carolina, United States
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3
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Lupu DI, Cediel Ulloa A, Rüegg J. Endocrine-Disrupting Chemicals and Hippocampal Development: The Role of Estrogen and Androgen Signaling. Neuroendocrinology 2023; 113:1193-1214. [PMID: 37356425 DOI: 10.1159/000531669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 06/06/2023] [Indexed: 06/27/2023]
Abstract
Hormones are important regulators of key processes during fetal brain development. Thus, the developing brain is vulnerable to the action of chemicals that can interfere with endocrine signals. Epidemiological studies have pointed toward sexually dimorphic associations between neurodevelopmental outcomes, such as cognitive abilities, in children and prenatal exposure to endocrine-disrupting chemicals (EDCs). This points toward disruption of sex steroid signaling in the development of neural structures underlying cognitive functions, such as the hippocampus, an essential mediator of learning and memory processes. Indeed, during development, the hippocampus is subjected to the organizational effects of estrogens and androgens, which influence hippocampal cell proliferation, differentiation, dendritic growth, and synaptogenesis in the hippocampal fields of Cornu Ammonis and the dentate gyrus. These early organizational effects correlate with a sexual dimorphism in spatial cognition and are subject to exogenous chemical perturbations. This review summarizes the current knowledge about the organizational effects of estrogens and androgens on the developing hippocampus and the evidence for hippocampal-dependent learning and memory perturbations induced by developmental exposure to EDCs. We conclude that, while it is clear that sex hormone signaling plays a significant role during hippocampal development, a complete picture at the molecular and cellular levels would be needed to establish causative links between the endocrine modes of action exerted by EDCs and the adverse outcomes these chemicals can induce at the organism level.
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Affiliation(s)
- Diana-Ioana Lupu
- Department of Organismal Biology, Uppsala University, Uppsala, Sweden
| | | | - Joëlle Rüegg
- Department of Organismal Biology, Uppsala University, Uppsala, Sweden
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4
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Cohen A, Popowitz J, Delbridge-Perry M, Rowe CJ, Connaughton VP. The Role of Estrogen and Thyroid Hormones in Zebrafish Visual System Function. Front Pharmacol 2022; 13:837687. [PMID: 35295340 PMCID: PMC8918846 DOI: 10.3389/fphar.2022.837687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/28/2022] [Indexed: 12/23/2022] Open
Abstract
Visual system development is a highly complex process involving coordination of environmental cues, cell pathways, and integration of functional circuits. Consequently, a change to any step, due to a mutation or chemical exposure, can lead to deleterious consequences. One class of chemicals known to have both overt and subtle effects on the visual system is endocrine disrupting compounds (EDCs). EDCs are environmental contaminants which alter hormonal signaling by either preventing compound synthesis or binding to postsynaptic receptors. Interestingly, recent work has identified neuronal and sensory systems, particularly vision, as targets for EDCs. In particular, estrogenic and thyroidogenic signaling have been identified as critical modulators of proper visual system development and function. Here, we summarize and review this work, from our lab and others, focusing on behavioral, physiological, and molecular data collected in zebrafish. We also discuss different exposure regimes used, including long-lasting effects of developmental exposure. Overall, zebrafish are a model of choice to examine the impact of EDCs and other compounds targeting estrogen and thyroid signaling and the consequences of exposure in visual system development and function.
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Affiliation(s)
- Annastelle Cohen
- Department of Biology, American University, Washington, DC, WA, United States
| | - Jeremy Popowitz
- Department of Biology, American University, Washington, DC, WA, United States
| | | | - Cassie J. Rowe
- Department of Biology, American University, Washington, DC, WA, United States,Center for Neuroscience and Behavior, American University, Washington, DC, WA, United States
| | - Victoria P. Connaughton
- Department of Biology, American University, Washington, DC, WA, United States,Center for Neuroscience and Behavior, American University, Washington, DC, WA, United States,*Correspondence: Victoria P. Connaughton,
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5
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Lichtensteiger W, Bassetti-Gaille C, Rehrauer H, Georgijevic JK, Tresguerres JAF, Schlumpf M. Converging Effects of Three Different Endocrine Disrupters on Sox and Pou Gene Expression in Developing Rat Hippocampus: Possible Role of microRNA in Sex Differences. Front Genet 2021; 12:718796. [PMID: 34858468 PMCID: PMC8632217 DOI: 10.3389/fgene.2021.718796] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/20/2021] [Indexed: 11/22/2022] Open
Abstract
Endocrine disrupting chemicals (EDCs) can impair hippocampus-dependent behaviors in rat offspring and in children. In search for key processes underlying this effect, we compared the transcriptomes of rat hippocampus on postnatal day 6 after gestational and lactational exposure to three different EDCs at doses known to impair development of learning and memory. Aroclor 1254, a commercial PCB mixture (5 mg/kg or 0.5 mg/kg), or bisphenol A (5 mg/kg or 0.5 mg/kg) were administered in chow, chlorpyrifos (3 mg/kg or 1 mg/kg) was injected subcutaneously. Male hippocampus exhibited a common effect of all three chemicals on genes involved in cell-autonomous processes, Sox6, Sox11, Pou2f2/Oct2, and Pou3f2/Brn2, all upregulated at the high dose. Additional genes of the Sox and Pou families were affected by only one or two of the chemicals. Real time RT PCR showed a comparable expression change for bisphenol A also at the lower dose. Female hippocampus exhibited much fewer genes with expression changes (almost none with false discovery rate <0.05), and none of the genes of the Sox and Pou families was affected. Since gene network analyses in male hippocampus suggested a link between Sox6 and miR-24, known to be repressed by activation of ER-alpha and to repress Sox6 in other tissues, this microRNA was measured. miR-24 was downregulated by all chemicals at the high dose in males. Values of Sox6 mRNA and miR-24 were inversely correlated in individual male hippocampus samples, supporting the hypothesis that the change in Sox6 expression resulted from an action of miR-24. In contrast, miR-24 levels remained unchanged in hippocampus of females. A sexually dimorphic response of miR-24 may thus be at the basis of the sex difference in Sox6 expression changes following exposure to the three chemicals. ER-alpha expression was also sex-dependent, but the expression changes did not parallel those of potential downstream genes such as Sox6. Sox6 is known to suppress differentiation of Parvalbumin (Pvalb)-expressing interneurons. Individual Sox6 levels (FPKM) were inversely correlated with levels of Pvalb, but not with markers of Sox6-independent interneuron subpopulations, Nos1 and 5HT3aR. Effects on interneuron development are further suggested, in males, by expression changes of Nrg1 and its receptor Erbb4, controlling interneuron migration. Our study disclosed new types of EDC-responsive morphogenetic genes, and illustrated the potential relevance of microRNAs in sexually dimorphic EDC actions.
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Affiliation(s)
- Walter Lichtensteiger
- GREEN Tox and Institute of Veterinary Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
| | - Catherine Bassetti-Gaille
- GREEN Tox and Institute of Veterinary Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
| | - Hubert Rehrauer
- Functional Genomics Center, Swiss Federal Institute of Technology and University of Zurich, Zurich, Switzerland
| | - Jelena Kühn Georgijevic
- Functional Genomics Center, Swiss Federal Institute of Technology and University of Zurich, Zurich, Switzerland
| | | | - Margret Schlumpf
- GREEN Tox and Institute of Veterinary Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
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6
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Wu Q, Du X, Feng X, Cheng H, Chen Y, Lu C, Wu M, Tong H. Chlordane exposure causes developmental delay and metabolic disorders in Drosophila melanogaster. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 225:112739. [PMID: 34481351 DOI: 10.1016/j.ecoenv.2021.112739] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/03/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
The incidence of metabolic diseases is increasing every year, and several studies have highlighted the activity of persistent organic pollutants (POPs) in causing hyperlipidemia and diabetes, and these compounds are considered to be endocrine disrupting chemicals (EDCs). Chlordane is classified as an endocrine disruptor, but the mechanism of how it functions is still unclear. This study investigates the effects of chlordane exposure on Drosophila larvae. Drosophila was cultured in diet containing 0.01 μM, 0.1 μM, 1 μM, 5 μM, and 10 μM chlordane, and the toxicity of chlordane, the growth and development of Drosophila, the homeostasis of glucose and lipid metabolism and insulin signaling pathway, lipid peroxidation-related indicators and Nrf2 signaling pathway were evaluated. We here found that exposure to high concentrations of chlordane decreased the survival rate of Drosophila and that exposure to low concentrations of chlordane caused disruption of glucose and lipid metabolism, increased insulin secretion and impairment of insulin signaling. Notably, it also led to massive ROS production and lipid peroxidation despite of the activation of Nrf2 signaling pathway, an important pathway for maintaining redox homeostasis. Collectively, chlordane causes lipid peroxidation and disrupts redox homeostasis, which may be a potential mechanism leading to impaired insulin signaling and the metabolism of glucose and lipid, ultimately affects Drosophila development.
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Affiliation(s)
- Qifang Wu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Xueting Du
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Xucong Feng
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Huimin Cheng
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Yingjun Chen
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Chenying Lu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Mingjiang Wu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Haibin Tong
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China.
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7
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O'Shaughnessy KL, Fischer F, Zenclussen AC. Perinatal exposure to endocrine disrupting chemicals and neurodevelopment: How articles of daily use influence the development of our children. Best Pract Res Clin Endocrinol Metab 2021; 35:101568. [PMID: 34565681 PMCID: PMC10111869 DOI: 10.1016/j.beem.2021.101568] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Substances that interfere with the body's hormonal balance or their function are called endocrine disrupting chemicals (EDCs). Many EDCs are ubiquitous in the environment and are an unavoidable aspect of daily life, including during early embryogenesis. Developmental exposure to these chemicals is of critical relevance, as EDCs can permanently alter developmental programs, including those that pattern and wire the brain. Of emerging interest is how these chemicals may also affect the immune response, given the cross-talk between the endocrine and immune systems. As brain development is strongly dependent on hormones including thyroid, androgens, and estrogens, and can also be affected by immunomodulation, this complicated interplay may have long-lasting neurodevelopmental consequences. This review focuses on data available from human cohorts, in vivo models, and in vitro assays regarding the impact of EDCs after a gestational and/or lactational exposure, and how they may impact the immune system and/or neurodevelopment.
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Affiliation(s)
- Katherine L O'Shaughnessy
- Center for Public Health and Environmental Assessment, Public Health Integrated Toxicology Division, US Environmental Protection Agency, Research Triangle Park, NC, USA.
| | - Florence Fischer
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Ana C Zenclussen
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research, Leipzig, Germany.
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8
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Maternal Oxycodone Treatment Results in Neurobehavioral Disruptions in Mice Offspring. eNeuro 2021; 8:ENEURO.0150-21.2021. [PMID: 34312305 PMCID: PMC8354714 DOI: 10.1523/eneuro.0150-21.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/28/2021] [Accepted: 07/06/2021] [Indexed: 01/14/2023] Open
Abstract
Opioid drugs are increasingly being prescribed to pregnant women. Such compounds can also bind and activate opioid receptors in the fetal brain, which could lead to long-term brain and behavioral disruptions. We hypothesized that maternal treatment with oxycodone (OXY), the primary opioid at the center of the current crisis, leads to later neurobehavioral disorders and gene expression changes in the hypothalamus and hippocampus of resulting offspring. Female mice were treated daily with 5 mg OXY/kg or saline solution (control; CTL) for two weeks before breeding and then throughout gestation. Male and female offspring from both groups were tested with a battery of behavioral and metabolic tests to measure cognition, exploratory-like, anxiety-like, voluntary physical activity, and socio-communication behaviors. qPCR analyses were performed for candidate gene expression patterns in the hypothalamus and hippocampus of OXY and CTL derived offspring. Developmental exposure to OXY caused socio-communication changes that persisted from weaning through adulthood. Such offspring also showed cognitive impairments, reduced voluntary physical activity, and weighed more than CTL counterparts. In the hippocampus, prenatal exposure to OXY caused sex-dependent differences in expression of genes encoding opioid receptors and those involved in serotonin signaling. OXY exposure induced changes in neuropeptide hormone expression and the epigenetic modulator, Dnmt3a, in the hypothalamus, which could result in epigenetic changes in this brain region. The findings suggest cause for concern that consumption of OXY by pregnant mothers may result in permanent neurobehavioral changes in their offspring. Further work is needed to determine the potential underpinning epigenetic mechanisms.
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9
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Amitrano A, Mahajan JS, Korley LTJ, Epps TH. Estrogenic activity of lignin-derivable alternatives to bisphenol A assessed via molecular docking simulations. RSC Adv 2021; 11:22149-22158. [PMID: 35480830 PMCID: PMC9034231 DOI: 10.1039/d1ra02170b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/14/2021] [Indexed: 01/01/2023] Open
Abstract
Lignin-derivable bisphenols are potential alternatives to bisphenol A (BPA), a suspected endocrine disruptor; however, a greater understanding of structure–activity relationships (SARs) associated with such lignin-derivable building blocks is necessary to move replacement efforts forward. This study focuses on the prediction of bisphenol estrogenic activity (EA) to inform the design of potentially safer BPA alternatives. To achieve this goal, the binding affinities to estrogen receptor alpha (ERα) of lignin-derivable bisphenols were calculated via molecular docking simulations and correlated to median effective concentration (EC50) values using an empirical correlation curve created from known EC50 values and binding affinities of commercial (bis)phenols. Based on the correlation curve, lignin-derivable bisphenols with binding affinities weaker than ∼−6.0 kcal mol−1 were expected to exhibit no EA, and further analysis suggested that having two methoxy groups on an aromatic ring of the bio-derivable bisphenol was largely responsible for the reduction in binding to ERα. Such dimethoxy aromatics are readily sourced from the depolymerization of hardwood biomass. Additionally, bulkier substituents on the bridging carbon of lignin-bisphenols, like diethyl or dimethoxy, were shown to weaken binding to ERα. And, as the bio-derivable aromatics maintain major structural similarities to BPA, the resultant polymeric materials should possess comparable/equivalent thermal (e.g., glass transition temperatures, thermal decomposition temperatures) and mechanical (e.g., tensile strength, modulus) properties to those of polymers derived from BPA. Hence, the SARs established in this work can facilitate the development of sustainable polymers that maintain the performance of existing BPA-based materials while simultaneously reducing estrogenic potential. This article explores lignin-derivable bisphenols as alternatives to bisphenol A – a suspected endocrine disruptor – by investigating their structure-activity relationships with respect to estrogen receptor alpha via molecular docking.![]()
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Affiliation(s)
- Alice Amitrano
- Department of Chemical and Biomolecular Engineering, University of Delaware Newark Delaware 19716 USA
| | - Jignesh S Mahajan
- Department of Materials Science and Engineering, University of Delaware Newark Delaware 19716 USA
| | - LaShanda T J Korley
- Department of Chemical and Biomolecular Engineering, University of Delaware Newark Delaware 19716 USA .,Department of Materials Science and Engineering, University of Delaware Newark Delaware 19716 USA.,Center for Research in Soft matter and Polymers (CRiSP), University of Delaware Newark Delaware 19716 USA
| | - Thomas H Epps
- Department of Chemical and Biomolecular Engineering, University of Delaware Newark Delaware 19716 USA .,Department of Materials Science and Engineering, University of Delaware Newark Delaware 19716 USA.,Center for Research in Soft matter and Polymers (CRiSP), University of Delaware Newark Delaware 19716 USA
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10
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Suriyampola PS, Lopez M, Suárez-Rodríguez M, Ellsworth BE, Conroy-Ben O, Martins EP. Co-occurring environmental stressors have emerging impacts on sensory-motor behavior. Integr Comp Biol 2021; 61:1191-1201. [PMID: 34086909 DOI: 10.1093/icb/icab122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Anthropogenic activities often lead to alterations in the natural environment via multiple routes. Simultaneous occurrence of interacting environmental perturbations may influence animals via more complex pathways than when being exposed to environmental stressors discretely. In our study, we investigated the interactive effects of poor visual environment and exposure to an environmentally realistic concentration of a common contaminant on the behavior of larval zebrafish, Danio rerio. Specifically, we tested the sensory-motor behavior of zebrafish larvae by exposing them to low-light conditions and a low concentration of Bisphenol-A (BPA) for 7 days post-fertilization. We found that zebrafish exposed to both BPA and low-light conditions had significantly weaker response to a moving-visual cue. However, those exposed to only one of these treatments did not have altered response to visual cues. Since the response to a moving, visual cue involves locomotion, we also examined the distance they traveled as a proxy for activity level of individuals across treatments. However, the distance traveled by individuals did not significantly differ across treatments, suggesting that the differences in response are linked to visual sensory pathways. Here, we emphasize that the adverse effects of environmental stressors, particularly of those that occur at environmentally relevant concentrations, may emerge only when they co-occur with another environmental stressor. These findings highlight the need to incorporate multiple environmental stressors to comprehensively assess impacts that human activities have on behavioral strategies of animals.
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Affiliation(s)
| | - Melissa Lopez
- School of Life Sciences, Arizona State University, Tempe, Arizona, USA
| | | | | | - Otakuye Conroy-Ben
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona, USA
| | - Emília P Martins
- School of Life Sciences, Arizona State University, Tempe, Arizona, USA
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11
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Morin A, Van de Beeck L, Person E, Plamondon H. Adult Male Rats Show Resilience to Adolescent Bisphenol A Effects on Hormonal and Behavioral Responses While Co-Exposure With Hop Extracts Supports Synergistic Actions. FRONTIERS IN TOXICOLOGY 2021; 3:639820. [PMID: 35295120 PMCID: PMC8915799 DOI: 10.3389/ftox.2021.639820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/25/2021] [Indexed: 11/13/2022] Open
Abstract
The adolescence period, marked by sexual and brain maturation, has shown sensitivity to various environmental disruptors. Exposure to the xenoestrogen bisphenol A (BPA) is known to alter physiological and behavioral responses although its role at this critical period remains largely unknown. Recent research further suggests biochemical and genomic effects of BPA to be mitigated by various natural compounds, while effects on behavior have not been examined. This study aimed to characterize (1) the effects of dietary BPA during adolescence on endogenous corticosterone (CORT) secretion, emotional behavior, and testosterone (T) in adulthood, and (2) the impact of combined exposure to BPA with hop extracts (Hop), a phytoestrogen with anxiolytic properties. To do so, four groups of male Wistar rats [postnatal day (PND) 28] were administered corn oil (control), BPA (40 mg/kg), hops (40 mg/kg), or BPA-hops by oral gavage for 21 days (PND 28–48). Blood droplets collected on PND 28, 48, and 71 served to measure CORT and T changes. As adults, rats were tested in the elevated plus maze (EPM), the social interaction test, and the forced swim test. Our findings demonstrated elevated anxiety and a trend toward depressive-like behaviors in BPA- compared to hops-exposed rats. However, BPA intake had no impact on basal CORT levels, or adulthood T secretion and sociability. Of note, BPA's anxiogenic effect manifested through decreased EPM open arm entries was abolished by hops co-supplementation. Together, our observations suggest the adolescence period to be less sensitive to deleterious effects of BPA than what has been reported upon gestational and perinatal exposure.
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12
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A review of the neuroprotective effects of andrographolide in Alzheimer's disease. ADVANCES IN TRADITIONAL MEDICINE 2021. [DOI: 10.1007/s13596-021-00573-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Crowley-Perry M, Barberio AJ, Zeino J, Winston ER, Connaughton VP. Zebrafish Optomotor Response and Morphology Are Altered by Transient, Developmental Exposure to Bisphenol-A. J Dev Biol 2021; 9:jdb9020014. [PMID: 33918232 PMCID: PMC8167563 DOI: 10.3390/jdb9020014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/22/2021] [Accepted: 03/25/2021] [Indexed: 12/15/2022] Open
Abstract
Estrogen-specific endocrine disrupting compounds (EDCs) are potent modulators of neural and visual development and common environmental contaminants. Using zebrafish, we examined the long-term impact of abnormal estrogenic signaling by testing the effects of acute, early exposure to bisphenol-A (BPA), a weak estrogen agonist, on later visually guided behaviors. Zebrafish aged 24 h postfertilization (hpf), 72 hpf, and 7 days postfertilization (dpf) were exposed to 0.001 μM or 0.1 μM BPA for 24 h, and then allowed to recover for 1 or 2 weeks. Morphology and optomotor responses (OMRs) were assessed after 1 and 2 weeks of recovery for 24 hpf and 72 hpf exposure groups; 7 dpf exposure groups were additionally assessed immediately after exposure. Increased notochord length was seen in 0.001 μM exposed larvae and decreased in 0.1 μM exposed larvae across all age groups. Positive OMR was significantly increased at 1 and 2 weeks post-exposure in larvae exposed to 0.1 μM BPA when they were 72 hpf or 7 dpf, while positive OMR was increased after 2 weeks of recovery in larvae exposed to 0.001 μM BPA at 72 hpf. A time-delayed increase in eye diameter occurred in both BPA treatment groups at 72 hpf exposure; while a transient increase occurred in 7 dpf larvae exposed to 0.1 μM BPA. Overall, short-term developmental exposure to environmentally relevant BPA levels caused concentration- and age-dependent effects on zebrafish visual anatomy and function.
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Affiliation(s)
- Mikayla Crowley-Perry
- Department of Biology, American University, 4400 Massachusetts Ave NW, Washington, DC 20016, USA; (M.C.-P.); (A.J.B.); (J.Z.); (E.R.W.)
- Department of Chemistry, American University, 4400 Massachusetts Ave NW, Washington, DC 20016, USA
| | - Angelo J. Barberio
- Department of Biology, American University, 4400 Massachusetts Ave NW, Washington, DC 20016, USA; (M.C.-P.); (A.J.B.); (J.Z.); (E.R.W.)
| | - Jude Zeino
- Department of Biology, American University, 4400 Massachusetts Ave NW, Washington, DC 20016, USA; (M.C.-P.); (A.J.B.); (J.Z.); (E.R.W.)
| | - Erica R. Winston
- Department of Biology, American University, 4400 Massachusetts Ave NW, Washington, DC 20016, USA; (M.C.-P.); (A.J.B.); (J.Z.); (E.R.W.)
| | - Victoria P. Connaughton
- Department of Biology, American University, 4400 Massachusetts Ave NW, Washington, DC 20016, USA; (M.C.-P.); (A.J.B.); (J.Z.); (E.R.W.)
- Correspondence: ; Tel.: +1-202-885-2188
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14
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Geary DC. Now you see them, and now you don't: An evolutionarily informed model of environmental influences on human sex differences. Neurosci Biobehav Rev 2021; 125:26-32. [PMID: 33609571 DOI: 10.1016/j.neubiorev.2021.02.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 08/05/2020] [Accepted: 02/10/2021] [Indexed: 11/13/2022]
Abstract
The contributions of evolutionary processes to human sex differences are vigorously debated. One counterargument is that the magnitude of many sex differences fluctuates from one context to the next, implying an environment origin. Sexual selection provides a framework for integrating evolutionary processes and environmental influences on the origin and magnitude of sex differences. The dynamics of sexual selection involve competition for mates and discriminative mate choices. The associated traits are typically exaggerated and condition-dependent, that is, their development and expression are very sensitive to social and ecological conditions. The magnitude of sex differences in sexually selected traits should then be largest under optimal social and ecological conditions and shrink as conditions deteriorate. The basics of this framework are described, and its utility is illustrated with discussion of fluctuations in the magnitude of human physical, behavioral, and cognitive sex differences.
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Affiliation(s)
- David C Geary
- Department of Psychological Sciences, Interdisciplinary Neuroscience, University of Missouri, Columbia, MO, 65211-2500, United States.
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15
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Kaur S, Kinkade JA, Green MT, Martin RE, Willemse TE, Bivens NJ, Schenk AK, Helferich WG, Trainor BC, Fass J, Settles M, Mao J, Rosenfeld CS. Disruption of global hypothalamic microRNA (miR) profiles and associated behavioral changes in California mice (Peromyscus californicus) developmentally exposed to endocrine disrupting chemicals. Horm Behav 2021; 128:104890. [PMID: 33221288 PMCID: PMC7897400 DOI: 10.1016/j.yhbeh.2020.104890] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/28/2020] [Accepted: 11/04/2020] [Indexed: 12/15/2022]
Abstract
Developmental exposure to endocrine disrupting chemicals (EDCs), e.g., bisphenol A (BPA) or genistein (GEN), causes longstanding epigenome effects. MicroRNAs (miRs) regulate which mRNAs will be translated to proteins and thereby serve as the final checkpoint in epigenetic control. Scant amount is known, however, whether EDCs affect neural miRNA (miR) patterns. We aimed to test the hypothesis that developmental exposure of California mice (Peromyscus californicus) to GEN, BPA, or both chemicals influences hypothalamic miR/small RNA profiles and ascertain the extent such biomolecular alterations correlate with behavioral and metabolic changes. California mice were developmentally exposed to GEN (250 mg/kg feed weight, FW), GEN (250 mg/kg FW)+BPA (5 mg/kg FW), low dose (LD) BPA (5 mg/kg FW), or upper dose (UD) BPA (50 mg/kg FW). Adult offspring were tested in a battery of behavioral and metabolic tests; whereupon, mice were euthanized, brains were collected and frozen, small RNAs were isolated from hypothalamic punches, and subsequently sequenced. California mice exposed to one or both EDCs engaged in one or more repetitive behaviors. GEN, LD BPA, and UD BPA altered aspects of ultrasonic and audible vocalizations. Each EDC exposure led to sex-dependent differences in differentially expressed miR/small RNAs with miR7-2, miR146, and miR148a being increased in all female and male EDC exposed groups. Current findings reveal that developmental exposure to GEN and/or BPA affects hypothalamic miR/small RNA expression patterns, and such changes correlate with EDC-induced behavioral and metabolic alterations. miR146 is likely an important mediator and biomarker of EDC exposure in mammals, including humans.
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Affiliation(s)
- Sarabjit Kaur
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Jessica A Kinkade
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Madison T Green
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Rachel E Martin
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Tess E Willemse
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Nathan J Bivens
- DNA Core Facility, University of Missouri, Columbia, MO 65211, USA
| | | | - William G Helferich
- Food Science and Human Nutrition, University of Illinois, Urbana, IL 61801, USA
| | - Brian C Trainor
- Department of Psychology, University of California, Davis, CA 95616, USA
| | - Joseph Fass
- Bioinformatics Core, UC Davis Genome Center, Davis, CA 95616, USA
| | - Matthew Settles
- Bioinformatics Core, UC Davis Genome Center, Davis, CA 95616, USA
| | - Jiude Mao
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA.
| | - Cheryl S Rosenfeld
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA; Informatics Institute, University of Missouri, Columbia, MO 65211, USA; Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO 65211, USA; Genetics Area Program, University of Missouri, Columbia, MO 65211, USA.
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16
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Ma Q, Deng P, Lin M, Yang L, Li L, Guo L, Zhang L, He M, Lu Y, Pi H, Zhang Y, Yu Z, Chen C, Zhou Z. Long-term bisphenol A exposure exacerbates diet-induced prediabetes via TLR4-dependent hypothalamic inflammation. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123926. [PMID: 33254826 DOI: 10.1016/j.jhazmat.2020.123926] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 06/12/2023]
Abstract
Bisphenol A (BPA), an environmental endocrine-disrupting compound, has been revealed associated with metabolic disorders such as obesity, prediabetes, and type 2 diabetes (T2D). However, its underlying mechanisms are still not fully understood. Here, we provide new evidence that BPA is a risk factor for T2D from a case-control study. To explore the detailed mechanisms, we used two types of diet models, standard diet (SD) and high-fat diet (HFD), to study the effects of long-term BPA exposure on prediabetes in 4-week-old mice. We found that BPA exposure for 12 weeks exacerbated HFD-induced prediabetic symptoms. Female mice showed increased body mass, serum insulin level, and impaired glucose tolerance, while male mice only exhibited impaired glucose tolerance. No change was found in SD-fed mice. Besides, BPA exposure enhanced astrocyte-dependent hypothalamic inflammation in both male and female mice, which impaired proopiomelanocortin (POMC) neuron functions. Moreover, eliminating inflammation by toll-like receptor 4 (TLR4) knockout significantly abolished the effects of BPA on the hypothalamus and diet-induced prediabetes. Taken together, our data establish a key role for TLR4-dependent hypothalamic inflammation in regulating the effects of BPA on prediabetes.
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Affiliation(s)
- Qinlong Ma
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Ping Deng
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Min Lin
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Lingling Yang
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Le Li
- Department of Health Management Center, Southwest Hospital, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Lu Guo
- Department of Neurology, Daping Hospital, Army Medical University (Former Name: Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Lei Zhang
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Mindi He
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Yonghui Lu
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Huifeng Pi
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Yanwen Zhang
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Zhengping Yu
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China
| | - Chunhai Chen
- Department of Occupational Health, Army Medical University (Former Name: Third Military Medical University), Chongqing 400038, People's Republic of China.
| | - Zhou Zhou
- Department of Environmental Medicine, and Department of Emergency Medicine of First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.
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17
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Wang Z, Alderman MH, Asgari C, Taylor HS. Fetal Bisphenol-A Induced Changes in Murine Behavior and Brain Gene Expression Persisted in Adult-aged Offspring. Endocrinology 2020; 161:5905560. [PMID: 32926169 PMCID: PMC7609133 DOI: 10.1210/endocr/bqaa164] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/10/2020] [Indexed: 12/17/2022]
Abstract
In utero Bisphenol A (BPA) exposure has been linked to many deficits during brain development, including sexual differentiation, behavior, and motor coordination. Yet, how BPA induces these disorders and whether its effects are long lasting are largely unknown. In this study, using a mouse model, we demonstrated that in utero exposure to an environmentally relevant dose of BPA induced locomotor deficits, anxiety-like behavior, and declarative memory impairments that persisted into old age (18 months). Compared to the control animals, the BPA-exposed mice had a significant decrease in locomotor activity, exploratory tendencies, and long-term memory, and an increase in anxiety. The global brain gene expression profile was altered permanently by BPA treatment and showed regional and sexual differences. The BPA-treated male mice had more changes in the hippocampus, while female mice experienced more changes in the cortex. Overall, we demonstrate that in utero exposure to BPA induces permanent changes in brain gene expression in a region-specific and sex-specific manner, including a significant decrease in locomotor activity, learning ability, long-term memory, and an increase in anxiety. Fetal/early life exposures permanently affect neurobehavioral functions that deteriorate with age; BPA exposure may compound the effects of aging.
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Affiliation(s)
- Zhihao Wang
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Myles H Alderman
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Cyrus Asgari
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
- Correspondence: Hugh S. Taylor, MD, Yale University School of Medicine, Division of Reproductive Endocrinology and Infertility, Department of Obstetrics, Gynecology and Reproductive Sciences, P.O. Box 208063, New Haven, CT 06520-8063, USA. E-mail:
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18
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Heindel JJ, Belcher S, Flaws JA, Prins GS, Ho SM, Mao J, Patisaul HB, Ricke W, Rosenfeld CS, Soto AM, Vom Saal FS, Zoeller RT. Data integration, analysis, and interpretation of eight academic CLARITY-BPA studies. Reprod Toxicol 2020; 98:29-60. [PMID: 32682780 PMCID: PMC7365109 DOI: 10.1016/j.reprotox.2020.05.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 05/03/2020] [Accepted: 05/25/2020] [Indexed: 12/12/2022]
Abstract
"Consortium Linking Academic and Regulatory Insights on BPA Toxicity" (CLARITY-BPA) was a comprehensive "industry-standard" Good Laboratory Practice (GLP)-compliant 2-year chronic exposure study of bisphenol A (BPA) toxicity that was supplemented by hypothesis-driven independent investigator-initiated studies. The investigator-initiated studies were focused on integrating disease-associated, molecular, and physiological endpoints previously found by academic scientists into an industry standard guideline-compliant toxicity study. Thus, the goal of this collaboration was to provide a more comprehensive dataset upon which to base safety standards and to determine whether industry-standard tests are as sensitive and predictive as molecular and disease-associated endpoints. The goal of this report is to integrate the findings from the investigator-initiated studies into a comprehensive overview of the observed impacts of BPA across the multiple organs and systems analyzed. For each organ system, we provide the rationale for the study, an overview of methodology, and summarize major findings. We then compare the results of the CLARITY-BPA studies across organ systems with the results of previous peer-reviewed studies from independent labs. Finally, we discuss potential influences that contributed to differences between studies. Developmental exposure to BPA can lead to adverse effects in multiple organs systems, including the brain, prostate gland, urinary tract, ovary, mammary gland, and heart. As published previously, many effects were at the lowest dose tested, 2.5μg/kg /day, and many of the responses were non-monotonic. Because the low dose of BPA affected endpoints in the same animals across organs evaluated in different labs, we conclude that these are biologically - and toxicologically - relevant.
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Affiliation(s)
- Jerrold J Heindel
- Healthy Environment and Endocrine Disruptor Strategies Commonweal, Bolinas, CA 94924, United States.
| | - Scott Belcher
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695, United States
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL 61802, United States
| | - Gail S Prins
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago IL 60612, United States
| | - Shuk-Mei Ho
- Department of Environmental Health, University of Cincinnati, Cincinnati OH 45267, United States; Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Jiude Mao
- Biomedical Sciences and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, United States
| | - Heather B Patisaul
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695, United States
| | - William Ricke
- Department of Urology, University of Wisconsin, Madison WI 53705, United States
| | - Cheryl S Rosenfeld
- Biomedical Sciences and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, United States
| | - Ana M Soto
- Tufts University, Boston, MA 02111, United States
| | - Frederick S Vom Saal
- Department of Biology, University of Missouri, Columbia, MO 65211, United States
| | - R Thomas Zoeller
- Department of Biology, University of Massachusetts, Amherst, MA 01003, United States
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19
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Sex-biased impact of endocrine disrupting chemicals on behavioral development and vulnerability to disease: Of mice and children. Neurosci Biobehav Rev 2020; 121:29-46. [PMID: 33248148 DOI: 10.1016/j.neubiorev.2020.11.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 10/16/2020] [Accepted: 11/14/2020] [Indexed: 12/14/2022]
Abstract
Sex is a fundamental biological characteristic that influences many aspects of an organism's phenotype, including neurobiological functions and behavior as a result of species-specific evolutionary pressures. Sex differences have strong implications for vulnerability to disease and susceptibility to environmental perturbations. Endocrine disrupting chemicals (EDCs) have the potential to interfere with sex hormones functioning and influence development in a sex specific manner. Here we present an updated descriptive review of findings from animal models and human studies regarding the current evidence for altered sex-differences in behavioral development in response to early exposure to EDCs, with a focus on bisphenol A and phthalates. Overall, we show that animal and human studies have a good degree of consistency and that there is strong evidence demonstrating that EDCs exposure during critical periods of development affect sex differences in emotional and cognitive behaviors. Results are more heterogeneous when social, sexual and parental behaviors are considered. In order to pinpoint sex differences in environmentally-driven disease vulnerabilities, researchers need to consider sex-biased developmental effects of EDCs.
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20
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Gestational Exposure to Bisphenol A Affects Testicular Morphology, Germ Cell Associations, and Functions of Spermatogonial Stem Cells in Male Offspring. Int J Mol Sci 2020; 21:ijms21228644. [PMID: 33212759 PMCID: PMC7696188 DOI: 10.3390/ijms21228644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/03/2020] [Accepted: 11/13/2020] [Indexed: 12/21/2022] Open
Abstract
Exposure to bisphenol A (BPA) in the gestational period damages the reproductive health of offspring; detailed evidence regarding BPA-induced damage in testicular germ cells of offspring is still limited. In this study, pregnant mice (F0) were gavaged with three BPA doses (50 μg, 5 mg, and 50 mg/kg body weight (bw)/day; tolerable daily intake (TDI), no-observed-adverse-effect-level (NOAEL), and lowest-observed-adverse-effect level (LOAEL), respectively) on embryonic days 7 to 14, followed by investigation of the transgenerational effects of such exposure in male offspring. We observed that the NOAEL- and LOAEL-exposed F1 offspring had abnormalities in anogenital distance, nipple retention, and pubertal onset (days), together with differences in seminiferous epithelial stages and testis morphology. These effects were eradicated in the next F2 and F3 generations. Moreover, there was an alteration in the ratio of germ cell population and the apoptosis rate in germ cells increased in F1 offspring at the LOAEL dose. However, the total number of spermatogonia remained unchanged. Finally, a reduction in the stemness properties of spermatogonial stem cells in F1 offspring was observed upon LOAEL exposure. Therefore, we provide evidence of BPA-induced disruption of physiology and functions in male germ cells during the gestational period. This may lead to several reproductive health issues and infertility in offspring.
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21
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Rivera DS, Lindsay CB, Oliva CA, Codocedo JF, Bozinovic F, Inestrosa NC. Effects of long-lasting social isolation and re-socialization on cognitive performance and brain activity: a longitudinal study in Octodon degus. Sci Rep 2020; 10:18315. [PMID: 33110163 PMCID: PMC7591540 DOI: 10.1038/s41598-020-75026-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/27/2020] [Indexed: 12/18/2022] Open
Abstract
Social isolation is considered a stressful situation that results in increased physiological reactivity to novel stimuli, altered behaviour, and impaired brain function. Here, we investigated the effects of long-term social isolation on working memory, spatial learning/memory, hippocampal synaptic transmission, and synaptic proteins in the brain of adult female and male Octodon degus. The strong similarity between degus and humans in social, metabolic, biochemical, and cognitive aspects, makes it a unique animal model that can be highly applicable for further social, emotional, cognitive, and aging studies. These animals were socially isolated from post-natal and post-weaning until adulthood. We also evaluated if re-socialization would be able to compensate for reactive stress responses in chronically stressed animals. We showed that long-term social isolation impaired the HPA axis negative feedback loop, which can be related to cognitive deficits observed in chronically stressed animals. Notably, re-socialization restored it. In addition, we measured physiological aspects of synaptic transmission, where chronically stressed males showed more efficient transmission but deficient plasticity, as the reverse was true on females. Finally, we analysed synaptic and canonical Wnt signalling proteins in the hypothalamus, hippocampus, and prefrontal cortex, finding both sex- and brain structure-dependent modulation, including transient and permanent changes dependent on stress treatment.
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Affiliation(s)
- Daniela S Rivera
- GEMA Center for Genomics, Ecology and Environment, Facultad de Estudios Interdisciplinarios, Universidad Mayor, Santiago, Chile.
| | - Carolina B Lindsay
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carolina A Oliva
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan Francisco Codocedo
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco Bozinovic
- Center for Applied Ecology and Sustainability (CAPES), Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nibaldo C Inestrosa
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile. .,Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas, Chile.
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22
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Hone LSE, Scofield JE, Bartholow BD, Geary DC. Frequency of Recent Binge Drinking Is Associated With Sex-Specific Cognitive Deficits: Evidence for Condition-Dependent Trait Expression in Humans. EVOLUTIONARY PSYCHOLOGY 2020; 18:1474704920954445. [PMID: 33078619 PMCID: PMC8202039 DOI: 10.1177/1474704920954445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Evolutionary theory suggests that commonly found sex differences are largest in healthy populations and smaller in populations that have been exposed to stressors. We tested this idea in the context of men’s typical advantage (vs. women) in visuospatial abilities (e.g., mental rotation) and women’s typical advantage (vs. men) in social-cognitive (e.g., facial-expression decoding) abilities, as related to frequent binge drinking. Four hundred nineteen undergraduates classified as frequent or infrequent binge drinkers were assessed in these domains. Trial-level multilevel models were used to test a priori Sex × Group (binge drinking) interactions for visuospatial and social-cognitive tasks. Among infrequent binge drinkers, men’s typical advantage in visuospatial abilities and women’s typical advantage in social-cognitive abilities was confirmed. Among frequent binge drinkers, men’s advantage was reduced for one visuospatial task (Δ d = 0.29) and eliminated for another (Δ d = 0.75), and women’s advantage on the social-cognitive task was eliminated (Δ d = 0.12). Males who frequently engaged in extreme binges had exaggerated deficits on one of the visuospatial tasks, as did their female counterparts on the social-cognitive task. The results suggest sex-specific vulnerabilities associated with recent, frequent binge drinking, and support an evolutionary approach to the study of these vulnerabilities.
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Affiliation(s)
- Liana S E Hone
- Department of Psychological Sciences, University of Missouri, Columbia, MO, USA.,Department of Health Education and Behavior, University of Florida, Gainesville, FL
| | - John E Scofield
- Department of Psychological Sciences, University of Missouri, Columbia, MO, USA
| | - Bruce D Bartholow
- Department of Psychological Sciences, University of Missouri, Columbia, MO, USA.,Missouri Center for Addiction Research and Engagement, University of Missouri, Columbia, MO, USA
| | - David C Geary
- Department of Psychological Sciences, University of Missouri, Columbia, MO, USA.,Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, USA
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23
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Kaur S, Sarma SJ, Marshall BL, Liu Y, Kinkade JA, Bellamy MM, Mao J, Helferich WG, Schenk AK, Bivens NJ, Lei Z, Sumner LW, Bowden JA, Koelmel JP, Joshi T, Rosenfeld CS. Developmental exposure of California mice to endocrine disrupting chemicals and potential effects on the microbiome-gut-brain axis at adulthood. Sci Rep 2020; 10:10902. [PMID: 32616744 PMCID: PMC7331640 DOI: 10.1038/s41598-020-67709-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/21/2020] [Indexed: 12/26/2022] Open
Abstract
Xenoestrogens are chemicals found in plant products, such as genistein (GEN), and in industrial chemicals, e.g., bisphenol A (BPA), present in plastics and other products that are prevalent in the environment. Early exposure to such endocrine disrupting chemicals (EDC) may affect brain development by directly disrupting neural programming and/or through the microbiome-gut-brain axis. To test this hypothesis, California mice (Peromyscus californicus) offspring were exposed through the maternal diet to GEN (250 mg/kg feed weight) or BPA (5 mg/kg feed weight, low dose- LD or 50 mg/kg, upper dose-UD), and dams were placed on these diets two weeks prior to breeding, throughout gestation, and lactation. Various behaviors, gut microbiota, and fecal metabolome were assessed at 90 days of age. The LD but not UD of BPA exposure resulted in individuals spending more time engaging in repetitive behaviors. GEN exposed individuals were more likely to exhibit such behaviors and showed socio-communicative disturbances. BPA and GEN exposed females had increased number of metabolites involved in carbohydrate metabolism and synthesis. Males exposed to BPA or GEN showed alterations in lysine degradation and phenylalanine and tyrosine metabolism. Current findings indicate cause for concern that developmental exposure to BPA or GEN might affect the microbiome-gut-brain axis.
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Affiliation(s)
- Sarabjit Kaur
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Saurav J Sarma
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,MU Metabolomics Center, University of Missouri, Columbia, MO, 65211, USA
| | - Brittney L Marshall
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Yang Liu
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65211, USA
| | - Jessica A Kinkade
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Madison M Bellamy
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Jiude Mao
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - William G Helferich
- Food Science and Human Nutrition, University of Illinois, Urbana, IL, 61801, USA
| | | | - Nathan J Bivens
- DNA Core Facility, University of Missouri, Columbia, MO, 65211, USA
| | - Zhentian Lei
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,MU Metabolomics Center, University of Missouri, Columbia, MO, 65211, USA.,Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Lloyd W Sumner
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,MU Metabolomics Center, University of Missouri, Columbia, MO, 65211, USA.,Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - John A Bowden
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32610, USA.,Center for Environmental and Human Toxicology, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Jeremy P Koelmel
- Environmental Health Sciences, Yale University, New Haven, CT, 06510, USA
| | - Trupti Joshi
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65211, USA.,Department of Health Management and Informatics, School of Medicine, University of Missouri, Columbia, MO, 65211, USA
| | - Cheryl S Rosenfeld
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA. .,Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA. .,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65211, USA. .,Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO, 65211, USA. .,Genetics Area Program, University of Missouri, Columbia, MO, 65211, USA.
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24
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Wu NC, Seebacher F. Effect of the plastic pollutant bisphenol A on the biology of aquatic organisms: A meta-analysis. GLOBAL CHANGE BIOLOGY 2020; 26:3821-3833. [PMID: 32436328 DOI: 10.1111/gcb.15127] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Plastic pollution is a global environmental concern. In particular, the endocrine-disrupting chemical bisphenol A (BPA) is nearly ubiquitous in aquatic environments globally, and it continues to be produced and released into the environment in large quantities. BPA disrupts hormone signalling and can thereby have far-reaching physiological and ecological consequences. However, it is not clear whether BPA has consistent effects across biological traits and phylogenetic groups. Hence, the aim of this study was to establish the current state of knowledge of the effect of BPA in aquatic organisms. We show that overall BPA exposure affected aquatic organisms negatively. It increased abnormalities, altered behaviour and had negative effects on the cardiovascular system, development, growth and survival. Early life stages were the most sensitive to BPA exposure in invertebrates and vertebrates, and invertebrates and amphibians seem to be particularly affected. These data provide a context for management efforts in the face of increasing plastic pollution. However, data availability is highly biased with respect to taxonomic groups and traits studies, and in the geographical distribution of sample collection. The latter is the case for both measurements of the biological responses and assessing pollution levels in water ways. Future research effort should be directed towards biological systems, such as studying endocrine disruption directly, and geographical areas (particularly in Africa and Asia) which we identify to be currently undersampled.
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Affiliation(s)
- Nicholas C Wu
- School of Life and Environmental Sciences A08, The University of Sydney, Sydney, NSW, Australia
| | - Frank Seebacher
- School of Life and Environmental Sciences A08, The University of Sydney, Sydney, NSW, Australia
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25
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Shay DA, Welly RJ, Givan SA, Bivens N, Kanaley J, Marshall BL, Lubahn DB, Rosenfeld CS, Vieira-Potter VJ. Changes in nucleus accumbens gene expression accompany sex-specific suppression of spontaneous physical activity in aromatase knockout mice. Horm Behav 2020; 121:104719. [PMID: 32081742 PMCID: PMC7387966 DOI: 10.1016/j.yhbeh.2020.104719] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/08/2020] [Accepted: 02/12/2020] [Indexed: 12/29/2022]
Abstract
Aromatase catalyzes conversion of testosterone to estradiol and is expressed in a variety of tissues, including the brain. Suppression of aromatase adversely affects metabolism and physical activity behavior, but mechanisms remain uncertain. The hypothesis tested herein was that whole body aromatase deletion would cause gene expression changes in the nucleus accumbens (NAc), a brain regulating motivated behaviors such as physical activity, which is suppressed with loss of estradiol. Metabolic and behavioral assessments were performed in male and female wild-type (WT) and aromatase knockout (ArKO) mice. NAc-specific differentially expressed genes (DEGs) were identified with RNAseq, and associations between the measured phenotypic traits were determined. Female ArKO mice had greater percent body fat, reduced spontaneous physical activity (SPA), consumed less energy, and had lower relative resting energy expenditure (REE) than WT females. Such differences were not observed in ArKO males. However, in both sexes, a top DEG was Pts, a gene encoding an enzyme necessary for catecholamine (e.g., dopamine) biosynthesis. In comparing male and female WT mice, top DEGs were related to sexual development/fertility, immune regulation, obesity, dopamine signaling, and circadian regulation. SPA correlated strongly with Per3, a gene regulating circadian function, thermoregulation, and metabolism (r = -0.64, P = .002), which also correlated with adiposity (r = 0.54, P = .01). In conclusion, aromatase ablation leads to gene expression changes in NAc, which may in turn result in reduced SPA and related metabolic abnormalities. These findings may have significance to post-menopausal women and those treated with an aromatase inhibitor.
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Affiliation(s)
- Dusti A Shay
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia 65211, MO, USA
| | - Rebecca J Welly
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia 65211, MO, USA
| | - Scott A Givan
- Informatics Research Core Facility, University of Missouri, Columbia 65211, MO, USA
| | - Nathan Bivens
- DNA Core Facility, University of Missouri, Columbia 65211, MO, USA
| | - Jill Kanaley
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia 65211, MO, USA
| | - Brittney L Marshall
- Bond Life Sciences Center, University of Missouri, Columbia 65211, MO, USA; Biomedical Sciences, University of Missouri, Columbia 65211, MO, USA
| | - Dennis B Lubahn
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA; Department of Child Health, University of Missouri, Columbia, MO 65211, USA
| | - Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia 65211, MO, USA; Biomedical Sciences, University of Missouri, Columbia 65211, MO, USA; Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia 65211, MO, USA; MU Informatics Institute, University of Missouri, Columbia 65211, MO, USA
| | - Victoria J Vieira-Potter
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia 65211, MO, USA.
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26
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Butler MC, Long CN, Kinkade JA, Green MT, Martin RE, Marshall BL, Willemse TE, Schenk AK, Mao J, Rosenfeld CS. Endocrine disruption of gene expression and microRNA profiles in hippocampus and hypothalamus of California mice: Association of gene expression changes with behavioural outcomes. J Neuroendocrinol 2020; 32:e12847. [PMID: 32297422 PMCID: PMC7207022 DOI: 10.1111/jne.12847] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 02/23/2020] [Accepted: 03/18/2020] [Indexed: 01/10/2023]
Abstract
The hypothalamus and hippocampus are sensitive to early exposure to endocrine disrupting chemicals (EDCs). Two EDCs that have raised particular concerns are bisphenol A (BPA), a widely prevalent chemical in many common household items, and genistein (GEN), a phyto-oestrogen present in soy and other plants. We hypothesised that early exposure to BPA or GEN may lead to permanent effects on gene expression profiles for both coding RNAs (mRNAs) and microRNAs (miRs), which can affect the translation of mRNAs. Such EDC-induced biomolecular changes may affect behavioural and metabolic patterns. California mice (Peromyscus californicus) male and female offspring were developmentally exposed via the maternal diet to BPA (5 mg kg-1 feed weight low dose [LD] and 50 mg kg-1 feed weight upper dose [UD]), GEN (250 mg kg-1 feed weight) or a phyto-oestrogen-free diet (AIN) control. Behavioural and metabolic tests were performed at 180 days of age. A quantitative polymerase chain reacttion analysis was performed for candidate mRNAs and miRs in the hypothalamus and hippocampus. LD BPA and GEN exposed California mice offspring showed socio-communication impairments. Hypothalamic Avp, Esr1, Kiss1 and Lepr were increased in LD BPA offspring. miR-153 was elevated but miR-181a was reduced in LD BPA offspring. miR-9 and miR-153 were increased in the hippocampi of LD BPA offspring, whereas GEN decreased hippocampal miR-7a and miR-153 expression. Correlation analyses revealed neural expression of miR-153 and miR-181a was associated with socio-communication deficits in LD BPA individuals. The findings reveal a cause for concern such that developmental exposure of BPA or GEN in California mice (and potentially by translation in humans) can lead to long standing neurobehavioural consequences.
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Affiliation(s)
- Mary C Butler
- Department of Chemistry, Truman State University, Kirksville, MO, USA
| | - Camryn N Long
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
| | - Jessica A Kinkade
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
| | - Madison T Green
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
| | - Rachel E Martin
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
| | - Brittney L Marshall
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
| | - Tess E Willemse
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
| | | | - Jiude Mao
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
| | - Cheryl S Rosenfeld
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Biomedical Sciences, University of Missouri, Columbia, MO, USA
- Informatics Institute, University of Missouri, Columbia, MO, USA
- Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO, USA
- Genetics Area Program, University of Missouri, Columbia, MO, USA
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27
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Mao J, Jain A, Denslow ND, Nouri MZ, Chen S, Wang T, Zhu N, Koh J, Sarma SJ, Sumner BW, Lei Z, Sumner LW, Bivens NJ, Roberts RM, Tuteja G, Rosenfeld CS. Bisphenol A and bisphenol S disruptions of the mouse placenta and potential effects on the placenta-brain axis. Proc Natl Acad Sci U S A 2020; 117:4642-4652. [PMID: 32071231 PMCID: PMC7060676 DOI: 10.1073/pnas.1919563117] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Placental trophoblast cells are potentially at risk from circulating endocrine-disrupting chemicals, such as bisphenol A (BPA). To understand how BPA and the reputedly more inert bisphenol S (BPS) affect the placenta, C57BL6J mouse dams were fed 200 μg/kg body weight BPA or BPS daily for 2 wk and then bred. They continued to receive these chemicals until embryonic day 12.5, whereupon placental samples were collected and compared with unexposed controls. BPA and BPS altered the expression of an identical set of 13 genes. Both exposures led to a decrease in the area occupied by spongiotrophoblast relative to trophoblast giant cells (GCs) within the junctional zone, markedly reduced placental serotonin (5-HT) concentrations, and lowered 5-HT GC immunoreactivity. Concentrations of dopamine and 5-hydroxyindoleacetic acid, the main metabolite of serotonin, were increased. GC dopamine immunoreactivity was increased in BPA- and BPS-exposed placentas. A strong positive correlation between 5-HT+ GCs and reductions in spongiotrophoblast to GC area suggests that this neurotransmitter is essential for maintaining cells within the junctional zone. In contrast, a negative correlation existed between dopamine+ GCs and reductions in spongiotrophoblast to GC area ratio. These outcomes lead to the following conclusions. First, BPS exposure causes almost identical placental effects as BPA. Second, a major target of BPA/BPS is either spongiotrophoblast or GCs within the junctional zone. Third, imbalances in neurotransmitter-positive GCs and an observed decrease in docosahexaenoic acid and estradiol, also occurring in response to BPA/BPS exposure, likely affect the placental-brain axis of the developing mouse fetus.
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Affiliation(s)
- Jiude Mao
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- Biomedical Sciences, University of Missouri, Columbia, MO 65211
| | - Ashish Jain
- Bioinformatics and Computational Biology, Iowa State University, Ames, IA 50011
- Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011
| | - Nancy D Denslow
- Physiological Sciences, University of Florida, Gainesville, FL 32611
- Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611
| | - Mohammad-Zaman Nouri
- Physiological Sciences, University of Florida, Gainesville, FL 32611
- Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611
| | - Sixue Chen
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL 32610
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Tingting Wang
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Ning Zhu
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Jin Koh
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Saurav J Sarma
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
| | - Barbara W Sumner
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
| | - Zhentian Lei
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
- Biochemistry, University of Missouri, Columbia, MO 65211
| | - Lloyd W Sumner
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
- Biochemistry, University of Missouri, Columbia, MO 65211
| | - Nathan J Bivens
- DNA Core Facility, University of Missouri, Columbia, MO 65211
| | - R Michael Roberts
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211;
- Biochemistry, University of Missouri, Columbia, MO 65211
- Animal Sciences, University of Missouri, Columbia, MO 65211
| | - Geetu Tuteja
- Bioinformatics and Computational Biology, Iowa State University, Ames, IA 50011;
- Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011
| | - Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211;
- Biomedical Sciences, University of Missouri, Columbia, MO 65211
- Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO 65211
- University of Missouri Informatics Institute, University of Missouri, Columbia, MO 65211
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28
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Zhang H, Wang Z, Meng L, Kuang H, Liu J, Lv X, Pang Q, Fan R. Maternal exposure to environmental bisphenol A impairs the neurons in hippocampus across generations. Toxicology 2020; 432:152393. [PMID: 32027964 DOI: 10.1016/j.tox.2020.152393] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/14/2022]
Abstract
Humans from fetal to adult stages are chronically and passively exposed to bisphenol A (BPA, an endocrine disruptor) due to its ubiquitous existence in daily life. To investigate the long-term neurotoxicity of maternal exposure to BPA for offspring, mice were used as the animal model. In this study, pregnant mice (F0) were orally dosed with BPA (i.e. mice from low-, medium- and high-exposed groups were treated with 0.5, 50, 5000 μg/kg·bw of BPA per day) until weaning. Then, the first generation (F1) mice were used to generate the F2 ones. The offspring of mice not exposed to BPA served as the control groups. The Y-maze test, comet assay, hematoxylin-eosin (HE) staining method, Golgi-Cox assay and liquid chromatography-tandem mass spectrometry (LC/MS/MS) were conducted to study any alterations to learning and memory abilities, the morphological variations in hippocampal neurons and transmitter levels of F1 and F2 mice induced by BPA exposure. Results showed that even a low-dose of maternal BPA exposure could sex-dependently and significantly impair the learning and memory ability of F1 male mice, but not of generation F2. Furthermore, decreased neuron quantities and spine densities in hippocampi were observed in both F1 and F2 generations after maternal BPA exposure. However, DNA damage of brain cells were only limited to F1 offspring, in which DNA damage was only observed in the low-exposed male mice and medium-exposed female mice. Additionally, maternal BPA exposure leads to variations in hippocampal neurotransmitter levels, indicated by the decreased ratio of Glu/GABA in F1 offspring. In conclusion, maternal exposure to an environmental dose of BPA resulted in lasting adverse effects on neurological development for offspring mice.
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Affiliation(s)
- Haibin Zhang
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Zhouyu Wang
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Lingxue Meng
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Hongxuan Kuang
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Jian Liu
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Xuejing Lv
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Qihua Pang
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Ruifang Fan
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, Guangzhou, 510631, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, South China Normal University, Guangzhou 510006, China.
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29
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Bansal A, Robles-Matos N, Wang PZ, Condon DE, Joshi A, Pinney SE. In utero Bisphenol A Exposure Is Linked with Sex Specific Changes in the Transcriptome and Methylome of Human Amniocytes. J Clin Endocrinol Metab 2020; 105:5571768. [PMID: 31536135 PMCID: PMC7046022 DOI: 10.1210/clinem/dgz037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/17/2019] [Indexed: 12/20/2022]
Abstract
CONTEXT Prenatal exposure to bisphenol A (BPA) is linked to obesity and diabetes but the molecular mechanisms driving these phenomena are not known. Alterations in deoxyribonucleic acid (DNA) methylation in amniocytes exposed to BPA in utero represent a potential mechanism leading to metabolic dysfunction later in life. OBJECTIVE To profile changes in genome-wide DNA methylation and expression in second trimester human amniocytes exposed to BPA in utero. DESIGN A nested case-control study was performed in amniocytes matched for offspring sex, maternal race/ethnicity, maternal age, gestational age at amniocentesis, and gestational age at birth. Cases had amniotic fluid BPA measuring 0.251 to 23.74 ng/mL. Sex-specific genome-wide DNA methylation analysis and RNA-sequencing (RNA-seq) were performed to determine differentially methylated regions (DMRs) and gene expression changes associated with BPA exposure. Ingenuity pathway analysis was performed to identify biologically relevant pathways enriched after BPA exposure. In silico Hi-C analysis identified potential chromatin interactions with DMRs. RESULTS There were 101 genes with altered expression in male amniocytes exposed to BPA (q < 0.05) in utero, with enrichment of pathways critical to hepatic dysfunction, collagen signaling and adipogenesis. Thirty-six DMRs were identified in male BPA-exposed amniocytes and 14 in female amniocyte analysis (q < 0.05). Hi-C analysis identified interactions between DMRs and 24 genes with expression changes in male amniocytes and 12 in female amniocytes (P < 0.05). CONCLUSION In a unique repository of human amniocytes exposed to BPA in utero, sex-specific analyses identified gene expression changes in pathways associated with metabolic disease and novel DMRs with potential distal regulatory functions.
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Affiliation(s)
- Amita Bansal
- Center for Research on Reproduction and Women’s Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicole Robles-Matos
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Paul Zhiping Wang
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Penn Bioinformatics Core, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - David E Condon
- Sanford Health, Sioux Falls, SD, USA
- Penn Bioinformatics Core, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Apoorva Joshi
- Division of Endocrinology and Diabetes, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sara E Pinney
- Center for Research on Reproduction and Women’s Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Division of Endocrinology and Diabetes, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Correspondence and Reprint Requests: Sara E. Pinney, Division of Endocrinology and Diabetes, Children’s Hospital Philadelphia, 3615 Civic Center Boulevard, Philadelphia, PA 19104, USA. E-mail:
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30
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Kaur S, Singh G, Sadwal S, Aniqa A. Alleviating impact of hydroethanolicMurraya koenigiileaves extract on bisphenol A instigated testicular lethality and apoptosis in mice. Andrologia 2020; 52:e13504. [DOI: 10.1111/and.13504] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/08/2019] [Accepted: 12/01/2019] [Indexed: 12/11/2022] Open
Affiliation(s)
| | | | | | - Aniqa Aniqa
- Biophysics from Panjab University Chandigarh India
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31
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Lyon-Caen S, Siroux V, Lepeule J, Lorimier P, Hainaut P, Mossuz P, Quentin J, Supernant K, Meary D, Chaperot L, Bayat S, Cassee F, Valentino S, Couturier-Tarrade A, Rousseau-Ralliard D, Chavatte-Palmer P, Philippat C, Pin I, Slama R, Study Group TS. Deciphering the Impact of Early-Life Exposures to Highly Variable Environmental Factors on Foetal and Child Health: Design of SEPAGES Couple-Child Cohort. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E3888. [PMID: 31615055 PMCID: PMC6843812 DOI: 10.3390/ijerph16203888] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/20/2019] [Accepted: 10/02/2019] [Indexed: 12/16/2022]
Abstract
In humans, studies based on Developmental Origins of Health and Disease (DOHaD) concept and targeting short half-lived chemicals, including many endocrine disruptors, generally assessed exposures from spot biospecimens. Effects of early-life exposure to atmospheric pollutants were reported, based on outdoor air pollution levels. For both exposure families, exposure misclassification is expected from these designs: for non-persistent chemicals, because a spot biospecimen is unlikely to capture exposure over windows longer than a few days; for air pollutants, because indoor levels are ignored. We developed a couple-child cohort relying on deep phenotyping and extended personal exposure assessment aiming to better characterize the effects of components of the exposome, including air pollutants and non-persistent endocrine disruptors, on child health and development. Pregnant women were included in SEPAGES couple-child cohort (Grenoble area) from 2014 to 2017. Maternal and children exposure to air pollutants was repeatedly assessed by personal monitors. DNA, RNA, serum, plasma, placenta, cord blood, meconium, child and mother stools, living cells, milk, hair and repeated urine samples were collected. A total of 484 pregnant women were recruited, with excellent compliance to the repeated urine sampling protocol (median, 43 urine samples per woman during pregnancy). The main health outcomes are child respiratory health using early objective measures, growth and neurodevelopment. Compared to former studies, the accuracy of assessment of non-persistent exposures is expected to be strongly improved in this new type of birth cohort tailored for the exposome concept, with deep phenotyping and extended exposure characterization. By targeting weaknesses in exposure assessment of the current approaches of cohorts on effects of early life environmental exposures with strong temporal variations, and relying on a rich biobank to provide insight on the underlying biological pathways whereby exposures affect health, this design is expected to provide deeper understanding of the interplay between the Exposome and child development and health.
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Affiliation(s)
- Sarah Lyon-Caen
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
| | - Valérie Siroux
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
| | - Johanna Lepeule
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
| | - Philippe Lorimier
- Biological Ressources Centre (CRB), Grenoble University Hospital, 38700 La Tronche, France.
| | - Pierre Hainaut
- Inserm, CNRS, Team of Tumor Molecular Pathology and Biomarkers, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
| | - Pascal Mossuz
- Biological Ressources Centre (CRB), Grenoble University Hospital, 38700 La Tronche, France.
| | - Joane Quentin
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
- Pediatric Department, Grenoble University Hospital, 38700 La Tronche, France.
| | - Karine Supernant
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
| | - David Meary
- CNRS, LPNC UMR 5105, University Grenoble Alpes, 38000 Grenoble, France.
| | - Laurence Chaperot
- Inserm, CNRS, Team of Immunobiology and Immunotherapy in Chronic Diseases, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research and Development Laboratory, 38700 Grenoble, France.
| | - Sam Bayat
- Pediatric Department, Grenoble University Hospital, 38700 La Tronche, France.
- Inserm UA7, Synchrotron Radiation for Biomedicine Laboratory (STROBE), University Grenoble Alpes, 38000 Grenoble, France.
| | - Flemming Cassee
- National Institute for Public Health and the Environment, 3720 Bilthoven, The Netherlands.
- Institute of Risk Assessment Studies, Utrecht University, 3508 Utrecht, The Netherlands.
| | - Sarah Valentino
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy-en-Josas, France.
| | | | | | | | - Claire Philippat
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
| | - Isabelle Pin
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
- Pediatric Department, Grenoble University Hospital, 38700 La Tronche, France.
| | - Rémy Slama
- Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB (Institute for Advanced Biosciences) Joint Research Center, University Grenoble Alpes, 38700 Grenoble, France.
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Marshall BL, Liu Y, Farrington MJ, Mao J, Helferich WG, Schenk AK, Bivens NJ, Sarma SJ, Lei Z, Sumner LW, Joshi T, Rosenfeld CS. Early genistein exposure of California mice and effects on the gut microbiota-brain axis. J Endocrinol 2019; 242:139-157. [PMID: 31189133 PMCID: PMC6885123 DOI: 10.1530/joe-19-0214] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 06/10/2019] [Indexed: 12/12/2022]
Abstract
Human offspring encounter high amounts of phytoestrogens, such as genistein (GEN), through maternal diet and soy-based formulas. Such chemicals can exert estrogenic activity and thereby disrupt neurobehavioral programming. Besides inducing direct host effects, GEN might cause gut dysbiosis and alter gut metabolites. To determine whether exposure to GEN affects these parameters, California mice (Peromyscus californicus) dams were placed 2 weeks prior to breeding and throughout gestation and lactation on a diet supplemented with GEN (250 mg/kg feed weight) or AIN93G phytoestrogen-free control diet (AIN). At weaning, offspring socio-communicative behaviors, gut microbiota and metabolite profiles were assayed. Exposure of offspring to GEN-induced sex-dependent changes in gut microbiota and metabolites. GEN exposed females were less likely to investigate a novel female mouse when tested in a three-chamber social test. When isolated, GEN males and females exhibited increased latency to elicit their first call, suggestive of reduced motivation to communicate with other individuals. Correlation analyses revealed interactions between GEN-induced microbiome, metabolome and socio-communicative behaviors. Comparison of GEN males with AIN males revealed the fraction of calls above 20 kHz was associated with daidzein, α-tocopherol, Flexispira spp. and Odoribacter spp. Results suggest early GEN exposure disrupts normal socio-communicative behaviors in California mice, which are otherwise evident in these social rodents. Such effects may be due to GEN disruptions on neural programming but might also be attributed to GEN-induced microbiota shifts and resultant changes in gut metabolites. Findings indicate cause for concern that perinatal exposure to GEN may detrimentally affect the offspring microbiome-gut-brain axis.
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Affiliation(s)
- Brittney L Marshall
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
| | - Yang Liu
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- Informatics Institute, University of Missouri, Columbia, Missouri, USA
| | - Michelle J Farrington
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
| | - Jiude Mao
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
| | - William G Helferich
- Food Science and Human Nutrition, University of Illinois, Urbana, Illinois, USA
| | | | - Nathan J Bivens
- DNA Core Facility, University of Missouri, Columbia, Missouri, USA
| | - Saurav J Sarma
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- MU Metabolomics Center, University of Missouri, Columbia, Missouri, USA
| | - Zhentian Lei
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- MU Metabolomics Center, University of Missouri, Columbia, Missouri, USA
- Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
| | - Lloyd W Sumner
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- MU Metabolomics Center, University of Missouri, Columbia, Missouri, USA
- Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
| | - Trupti Joshi
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- Informatics Institute, University of Missouri, Columbia, Missouri, USA
- Department of Health Management and Informatics, School of Medicine, University of Missouri, Columbia, Missouri, USA
| | - Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
- Informatics Institute, University of Missouri, Columbia, Missouri, USA
- Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, Missouri, USA
- Genetics Area Program, University of Missouri, Columbia, Missouri, USA
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da Silva BS, Pietrobon CB, Bertasso IM, Lopes BP, Carvalho JC, Peixoto-Silva N, Santos TR, Claudio-Neto S, Manhães AC, Oliveira E, de Moura EG, Lisboa PC. Short and long-term effects of bisphenol S (BPS) exposure during pregnancy and lactation on plasma lipids, hormones, and behavior in rats. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 250:312-322. [PMID: 31003143 DOI: 10.1016/j.envpol.2019.03.100] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/24/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Bisphenol S (BPS) has replaced bisphenol A (BPA), a known non-persistent endocrine disrupting chemical, in several products. Considering that little is known regarding BPS effects, especially during critical windows of ontogenetic development, and that BPA, which is quite similar to BPS, is know to be transferred to the offspring via the placenta and milk, in the present study we investigated the behavioral, biochemical and endocrine profiles of Wistar rats born from dams that were BPS-exposed [groups: BPS10 (10 μg/kg/day), BPS50 (50 μg/kg/day)] during pregnancy and lactation. Due to the non-monotonic dose-response effect of bisphenol, the data of both BPS groups were directly compared with those of the controls, not to each other. Males and females were analyzed separately. At weaning, male BPS50 offspring had hypotriglyceridemia and hyperthyroxinemia, whereas BPS50 females showed higher 25(OH)D levels. At adulthood, BPS offspring of both sexes had lower food intake. BPS males showed lower visceral adiposity. BPS50 females had smaller fat droplets in brown adipocytes. BPS males showed higher anxiety and higher locomotor activity, while BPS10 females showed lower exploration. During a food challenge test at adulthood, BPS males consumed more high-fat diet at 30 min. BPS10 females initially (at 30 min) consumed more high-fat diet but, after 12 h, less of this diet was consumed. BPS50 males had hypertriglyceridemia and lower plasma T3, while BPS females showed lower plasma T4. BPS10 females had lower progesterone, whereas BPS50 females had higher plasma 25(OH)D. Maternal BPS exposure has adverse effects on the triacylglycerol, hormones levels and behavior of the progeny. Furthermore, the increased preference for the fat-enriched diet suggests an increased risk for obesity and its health consequences in the long term.
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Affiliation(s)
- Beatriz Souza da Silva
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Carla Bruna Pietrobon
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Iala Milene Bertasso
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Bruna Pereira Lopes
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Janaine Cavalcanti Carvalho
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Nayara Peixoto-Silva
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Tatianne Rosa Santos
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Sylvio Claudio-Neto
- Laboratory of Neurophysiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Alex Christian Manhães
- Laboratory of Neurophysiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Elaine Oliveira
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Egberto Gaspar de Moura
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil
| | - Patrícia Cristina Lisboa
- Laboratory of Endocrine Physiology, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, RJ, Brazil.
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Gould CJ, Saldanha CJ, Connaughton VP. Acute exposure to 4-OH-A, not PCB 1254, alters brain aromatase activity but does not adversely affect growth in zebrafish. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 68:133-140. [PMID: 30889543 PMCID: PMC6516860 DOI: 10.1016/j.etap.2019.02.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Acute developmental exposure to pharmaceuticals or environmental contaminants can have deleterious, long lasting effects. Many of these compounds are endocrine disruptors (EDCs) that target estrogen signaling, with effects on reproductive and non-reproductive tissues. We recently reported that zebrafish larvae transiently exposed to the pharmaceutical EDC 4-OH-A display visual deficits as adults. Here, we examine whether these long-term effects are due to compound-induced morphological and/or cellular changes. Zebrafish aged 24 h, 48 h, 72 h, or 7 days post-fertilization (larvae) or 3-4mos (adults) were exposed to either 4-OH-A or PCB1254 for 24 h. After that time, notochord length, eye diameter, inter-eye distance, and heart rate were measured from larvae; and aromatase (estrogen synthase) activity was measured in homogenates of adult brain tissue. In general, indices of larval growth and development were not altered by 24 h exposure to either compound. 4-OH-A potently inhibited aromatase activity, while PCB1254 did not, with inhibition continuing even after removal from treatment. These results support differential function of EDCs and indicate that developmental exposure to 4-OH-A causes sustained inhibition of aromatase, which could be associated with altered adult behaviors.
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Affiliation(s)
- Cassie J Gould
- Department of Biology, American University, Washington, DC, United States; Behavior, Cognition & Neuroscience Program, American University, Washington, DC, United States; Center for Behavioral Neuroscience, American University, Washington, DC, United States.
| | - Colin J Saldanha
- Department of Biology, American University, Washington, DC, United States; Behavior, Cognition & Neuroscience Program, American University, Washington, DC, United States; Center for Behavioral Neuroscience, American University, Washington, DC, United States
| | - Victoria P Connaughton
- Department of Biology, American University, Washington, DC, United States; Behavior, Cognition & Neuroscience Program, American University, Washington, DC, United States; Center for Behavioral Neuroscience, American University, Washington, DC, United States
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35
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Silva B, Bertasso I, Pietrobon C, Lopes B, Santos T, Peixoto-Silva N, Carvalho J, Claudio-Neto S, Manhães A, Cabral S, Kluck G, Atella G, Oliveira E, Moura E, Lisboa P. Effects of maternal bisphenol A on behavior, sex steroid and thyroid hormones levels in the adult rat offspring. Life Sci 2019; 218:253-264. [DOI: 10.1016/j.lfs.2018.12.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/13/2018] [Accepted: 12/21/2018] [Indexed: 12/12/2022]
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Topper VY, Reilly MP, Wagner LM, Thompson LM, Gillette R, Crews D, Gore AC. Social and neuromolecular phenotypes are programmed by prenatal exposures to endocrine-disrupting chemicals. Mol Cell Endocrinol 2019; 479:133-146. [PMID: 30287398 PMCID: PMC6263824 DOI: 10.1016/j.mce.2018.09.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/25/2018] [Accepted: 09/28/2018] [Indexed: 01/09/2023]
Abstract
Exposures to endocrine-disrupting chemicals (EDCs) affect the development of hormone-sensitive neural circuits, the proper organization of which are necessary for the manifestation of appropriate adult social and sexual behaviors. We examined whether prenatal exposure to polychlorinated biphenyls (PCBs), a family of ubiquitous industrial contaminants detectable in virtually all humans and wildlife, caused changes in sexually-dimorphic social interactions and communications, and profiled the underlying neuromolecular phenotype. Rats were treated with a PCB commercial mixture, Aroclor 1221 (A1221), estradiol benzoate (EB) as a positive control for estrogenic effects of A1221, or the vehicle (4% DMSO), on embryonic day (E) 16 and 18. In adult F1 offspring, we first conducted tests of ultrasonic vocalization (USV) calls in a sociosexual context as a measure of motivated communications. Numbers of certain USV call types were significantly increased by prenatal treatment with A1221 in males, and decreased by EB in females. In a test of sociosexual preference for a hormone-vs. a non-hormone-primed opposite sex conspecific, male (but not female) nose-touching with opposite-sex rats was significantly diminished by EDCs. Gene expression profiling was conducted in two brain regions that are part of the social decision-making network in the brain: the medial preoptic nucleus (MPN) and the ventromedial nucleus (VMN). In both regions, many more genes were affected by A1221 or EB in females than males. In female MPN, A1221 changed expression of steroid hormone receptor and neuropeptide genes (e.g., Ar, Esr1, Esr2, and Kiss1). In male MPN, only Per2 was affected by A1221. The VMN had a number of genes affected by EB compared to vehicle (females: Kiss1, Kiss1r, Pgr; males: Crh) but not A1221. These differences between EB and A1221 indicate that the mechanism of action of A1221 goes beyond estrogenic pathways. These data show sex-specific effects of prenatal PCBs on adult behaviors and the neuromolecular phenotype.
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Affiliation(s)
- Viktoria Y Topper
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Michael P Reilly
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Lauren M Wagner
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Lindsay M Thompson
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Ross Gillette
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA
| | - David Crews
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA; Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Andrea C Gore
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA; Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA.
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Bax EN, Cochran KE, Mao J, Wiedmeyer CE, Rosenfeld CS. Opposing effects of S-equol supplementation on metabolic and behavioral parameters in mice fed a high-fat diet. Nutr Res 2018; 64:39-48. [PMID: 30802721 DOI: 10.1016/j.nutres.2018.12.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/07/2018] [Accepted: 12/17/2018] [Indexed: 12/13/2022]
Abstract
Phytoestrogens, such as daidzein and genistein, may be used to treat various hormone-dependent disorders. Daidzein can be metabolized by intestinal microbes to S-equol. However, not all individuals possess bacteria producing this metabolite, resulting in categorization of equol vs nonequol producers. Past human and rodent studies have suggested that supplementation of this compound might yield beneficial metabolic and behavioral effects. We hypothesized that administration of S-equol to diet-induced obese male and female mice would mitigate potential diet-induced metabolic and comorbid neurobehavioral disorders. To test this possibility, we placed 5-week-old C57 mice on a high-fat diet (HFD) to mimic the diet currently consumed by many Western adults. Animals were randomly assigned to S-equol supplementation (10 mg/kg body weight) or vehicle control group. After 4 weeks on HFD with or without S-equol supplementation, metabolic and behavioral phenotyping was performed. Although the initial hypothesis proposed that S-equol treatment would improve metabolic and neurobehavioral outcomes, this supplementation instead exacerbated aspects of HFD-induced metabolic disease, as indicated by suppressed physical activity in treated individuals, reduced energy expenditure in treated males, and serum chemistry changes (hyperglycemia in treated individuals; hyperinsulinemia and hypoleptinemia in treated males). Conversely, S-equol individuals exhibited less anxiety-like and depressive-like behaviors, as evidenced by increased exploratory time in the elevated plus maze by treated males and increased time spent mobile in the tail suspension test for treated individuals. In summary, S-equol may be beneficial in mitigating depression and anxiety disorders in individuals, but for indeterminate reasons, supplementation may worsen facets of metabolic disorders in obese individuals.
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Affiliation(s)
- Erin N Bax
- Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Karlee E Cochran
- Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Jiude Mao
- Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Charles E Wiedmeyer
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA
| | - Cheryl S Rosenfeld
- Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO 65211, USA; MU Informatics Institute, University of Missouri, Columbia, MO 65211, USA.
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38
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Mhaouty-Kodja S, Belzunces LP, Canivenc MC, Schroeder H, Chevrier C, Pasquier E. Impairment of learning and memory performances induced by BPA: Evidences from the literature of a MoA mediated through an ED. Mol Cell Endocrinol 2018; 475:54-73. [PMID: 29605460 DOI: 10.1016/j.mce.2018.03.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 03/28/2018] [Accepted: 03/28/2018] [Indexed: 11/29/2022]
Abstract
Many rodent studies and a few non-human primate data report impairments of spatial and non-spatial memory induced by exposure to bisphenol A (BPA), which are associated with neural modifications, particularly in processes involved in synaptic plasticity. BPA-induced alterations involve disruption of the estrogenic pathway as established by reversal of BPA-induced effects with estrogenic receptor antagonist or by interference of BPA with administered estradiol in ovariectomized animals. Sex differences in hormonal impregnation during critical periods of development and their influence on maturation of learning and memory processes may explain the sexual dimorphism observed in BPA-induced effects in some studies. Altogether, these data highly support the plausibility that alteration of learning and memory and synaptic plasticity by BPA is essentially mediated by disturbance of the estrogenic pathways. As memory function in humans involves similar signaling pathways, this mode of action of BPA has the potential to alter human cognitive abilities.
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Affiliation(s)
- Sakina Mhaouty-Kodja
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, CNRS, Neuroscience Paris Seine, Institut de Biologie Paris Seine, 75005 Paris, France
| | - Luc P Belzunces
- INRA, Laboratoire de Toxicologie Environnementale, UR 406 A&E, CS 40509, 84914 Avignon Cedex 9, France
| | - Marie-Chantal Canivenc
- Centre des Sciences du Goût et de l'Alimentation, INRA, CNRS, agrosup, Université de Bourgogne, Franche-Comté, Dijon, 21000, France
| | - Henri Schroeder
- Calbinotox, EA7488, Faculté des Sciences et Technologies, Université de Lorraine, 54500, Vandoeuvre les Nancy, France
| | - Cécile Chevrier
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
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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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Rosin JM, Kurrasch DM. Bisphenol A and microglia: could microglia be responsive to this environmental contaminant during neural development? Am J Physiol Endocrinol Metab 2018; 315:E279-E285. [PMID: 29812986 DOI: 10.1152/ajpendo.00443.2017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is a growing interest in the functional role of microglia in the developing brain. In our laboratory, we have become particularly intrigued as to whether fetal microglia in the embryonic brain are susceptible to maternal challenges in utero (e.g., maternal infection, stress) and, if so, whether their precocious activation could then adversely influence brain development. One such challenge that is newly arising in this field is whether microglia might be downstream targets to endocrine-disrupting chemicals, such as the plasticizer bisphenol A (BPA), which functions in part by mimicking estrogen structure and function. A growing body of evidence demonstrates that gestational exposure to BPA has adverse effects on brain development, although the exact mechanisms are still emerging. Given that microglia express estrogen receptors and steroid-producing enzymes, microglia might be an unappreciated target of BPA. Mechanistically, we propose that BPA binding to estrogen receptors within microglia initiates transcription of downstream target genes, which then leads to activation of microglia that can then perhaps adversely influence brain development. Here, we first briefly outline the current understanding of how microglia may influence brain development and then describe how this literature overlaps with our understanding of BPA's effects during similar time points. We also outline the current literature demonstrating that BPA exposure affects microglia. We conclude by discussing our thoughts on the mechanisms through which exposure to BPA could disrupt normal microglia functions, ultimately affecting brain development that could potentially lead to lasting behavioral effects and perhaps even neuroendocrine diseases such as obesity.
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Affiliation(s)
- Jessica M Rosin
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary , Calgary, Alberta , Canada
- Alberta Children's Hospital Research Institute, University of Calgary , Calgary, Alberta , Canada
- Hotchkiss Brain Institute, University of Calgary , Calgary, Alberta , Canada
| | - Deborah M Kurrasch
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary , Calgary, Alberta , Canada
- Alberta Children's Hospital Research Institute, University of Calgary , Calgary, Alberta , Canada
- Hotchkiss Brain Institute, University of Calgary , Calgary, Alberta , Canada
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Johnson SA, Spollen WG, Manshack LK, Bivens NJ, Givan SA, Rosenfeld CS. Hypothalamic transcriptomic alterations in male and female California mice ( Peromyscus californicus) developmentally exposed to bisphenol A or ethinyl estradiol. Physiol Rep 2018; 5:5/3/e13133. [PMID: 28196854 PMCID: PMC5309579 DOI: 10.14814/phy2.13133] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 12/15/2016] [Accepted: 12/26/2016] [Indexed: 12/22/2022] Open
Abstract
Bisphenol A (BPA) is an endocrine‐disrupting chemical (EDC) prevalent in many household items. Rodent models and human epidemiological studies have linked this chemical to neurobehavior impairments. In California mice, developmental exposure to BPA results in sociosexual disorders at adulthood, including communication and biparental care deficits, behaviors that are primarily regulated by the hypothalamus. Thus, we sought to examine the transcriptomic profile in this brain region of juvenile male and female California mice offspring exposed from periconception through lactation to BPA or ethinyl estradiol (EE, estrogen present in birth control pills and considered a positive estrogen control for BPA studies). Two weeks prior to breeding, P0 females were fed a control diet, or this diet supplemented with 50 mg BPA/kg feed weight or 0.1 ppb EE, and continued on the diets through lactation. At weaning, brains from male and female offspring were collected, hypothalamic RNA isolated, and RNA‐seq analysis performed. Results indicate that BPA and EE groups clustered separately from controls with BPA and EE exposure leading to unique set of signature gene profiles. Kcnd3 was downregulated in the hypothalamus of BPA‐ and EE‐exposed females, whereas Tbl2, Topors, Kif3a, and Phactr2 were upregulated in these groups. Comparison of transcripts differentially expressed in BPA and EE groups revealed significant enrichment of gene ontology terms associated with microtubule‐based processes. Current results show that perinatal exposure to BPA or EE can result in several transcriptomic alterations, including those associated with microtubule functions, in the hypothalamus of California mice. It remains to be determined whether these genes mediate BPA‐induced behavioral disruptions.
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Affiliation(s)
- Sarah A Johnson
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri.,Biomedical Sciences, University of Missouri, Columbia, Missouri.,Animal Sciences, University of Missouri, Columbia, Missouri
| | - William G Spollen
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri.,Informatics Research Core Facility University of Missouri, Columbia, Missouri
| | - Lindsey K Manshack
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri.,Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - Nathan J Bivens
- DNA Core Facility, University of Missouri, Columbia, Missouri
| | - Scott A Givan
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri .,Informatics Research Core Facility University of Missouri, Columbia, Missouri.,Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri
| | - Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri .,Biomedical Sciences, University of Missouri, Columbia, Missouri.,Genetics Area Program, University of Missouri, Columbia, Missouri.,Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, Missouri
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Johnson SA, Farrington MJ, Murphy CR, Caldo PD, McAllister LA, Kaur S, Chun C, Ortega MT, Marshall BL, Hoffmann F, Ellersieck MR, Schenk AK, Rosenfeld CS. Multigenerational effects of bisphenol A or ethinyl estradiol exposure on F2 California mice (Peromyscus californicus) pup vocalizations. PLoS One 2018; 13:e0199107. [PMID: 29912934 PMCID: PMC6005501 DOI: 10.1371/journal.pone.0199107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/24/2018] [Indexed: 01/08/2023] Open
Abstract
Rodent pups use vocalizations to communicate with one or both parents in biparental species, such as California mice (Peromyscus californicus). Previous studies have shown California mice developmentally exposed to endocrine disrupting chemicals, bisphenol A (BPA) or ethinyl estradiol (EE), demonstrate later compromised parental behaviors. Reductions in F1 parental behaviors might also be due to decreased emissions of F2 pup vocalizations. Thus, vocalizations of F2 male and female California mice pups born to F1 parents developmentally exposed to BPA, EE, or controls were examined. Postnatal days (PND) 2-4 were considered early postnatal period, PND 7 and 14 were defined as mid-postnatal period, and PND 21 and 28 were classified as late postnatal period. EE pups showed increased latency to emit the first syllable compared to controls. BPA female pups had decreased syllable duration compared to control and EE female pups during the early postnatal period but enhanced responses compared to controls at late postnatal period; whereas, male BPA and EE pups showed greater syllable duration compared to controls during early postnatal period. In mid-postnatal period, F2 BPA and EE pups emitted greater number of phrases than F2 control pups. Results indicate aspects of vocalizations were disrupted in F2 pups born to F1 parents developmentally exposed to BPA or EE, but their responses were not always identical, suggesting BPA might not activate estrogen receptors to the same extent as EE. Changes in vocalization patterns by F2 pups may be due to multigenerational exposure to BPA or EE and/or reduced parental care received.
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Affiliation(s)
- Sarah A. Johnson
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
- Department of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
- Department of Gastroenterology, School of Medicine, University of Missouri, Columbia, Missouri, United States of America
| | - Michelle J. Farrington
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Claire R. Murphy
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Paul D. Caldo
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Leif A. McAllister
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Sarabjit Kaur
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Catherine Chun
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Madison T. Ortega
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Brittney L. Marshall
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Frauke Hoffmann
- Department of Chemicals and Product Safety, The German Federal Institute for Risk Assessment, Berlin, Germany
| | - Mark R. Ellersieck
- Department of Agriculture Experimental Station-Statistics, University of Missouri, Columbia, Missouri, United States of America
| | - A. Katrin Schenk
- Department of Physics, Randolph College, Lynchburg, Virginia, United States of America
| | - Cheryl S. Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States of America
- Genetics Area Program, University of Missouri, Columbia, Missouri, United States of America
- Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, Missouri, United States of America
- * E-mail:
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Geary DC. Evolutionary perspective on sex differences in the expression of neurological diseases. Prog Neurobiol 2018; 176:33-53. [PMID: 29890214 DOI: 10.1016/j.pneurobio.2018.06.001] [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: 10/05/2017] [Revised: 04/25/2018] [Accepted: 06/05/2018] [Indexed: 12/20/2022]
Abstract
Sex-specific brain and cognitive deficits emerge with malnutrition, some infectious and neurodegenerative diseases, and often with prenatal or postnatal toxin exposure. These deficits are described in disparate literatures and are generally not linked to one another. Sexual selection may provide a unifying framework that integrates our understanding of these deficits and provides direction for future studies of sex-specific vulnerabilities. Sexually selected traits are those that have evolved to facilitate competition for reproductive resources or that influence mate choices, and are often larger and more complex than other traits. Critically, malnutrition, disease, chronic social stress, and exposure to man-made toxins compromise the development and expression of sexually selected traits more strongly than that of other traits. The fundamental mechanism underlying vulnerability might be the efficiency of mitochondrial energy capture and control of oxidative stress that in turn links these traits to current advances in neuroenergetics, stress endocrinology, and toxicology. The key idea is that the elaboration of these cognitive abilities, with more underlying gray matter or more extensive inter-modular white matter connections, makes them particularly sensitive to disruptions in mitochondrial functioning and oxidative stress. A framework of human sexually selected cognitive abilities and underlying brain systems is proposed and used to organize what is currently known about sex-specific vulnerabilities.
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Affiliation(s)
- David C Geary
- Department of Psychological Sciences, Interdisciplinary Neuroscience, University of Missouri, MO, 65211-2500, Columbia, United States.
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Street ME, Angelini S, Bernasconi S, Burgio E, Cassio A, Catellani C, Cirillo F, Deodati A, Fabbrizi E, Fanos V, Gargano G, Grossi E, Iughetti L, Lazzeroni P, Mantovani A, Migliore L, Palanza P, Panzica G, Papini AM, Parmigiani S, Predieri B, Sartori C, Tridenti G, Amarri S. Current Knowledge on Endocrine Disrupting Chemicals (EDCs) from Animal Biology to Humans, from Pregnancy to Adulthood: Highlights from a National Italian Meeting. Int J Mol Sci 2018; 19:E1647. [PMID: 29865233 PMCID: PMC6032228 DOI: 10.3390/ijms19061647] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/23/2018] [Accepted: 05/31/2018] [Indexed: 02/07/2023] Open
Abstract
Wildlife has often presented and suggested the effects of endocrine disrupting chemicals (EDCs). Animal studies have given us an important opportunity to understand the mechanisms of action of many chemicals on the endocrine system and on neurodevelopment and behaviour, and to evaluate the effects of doses, time and duration of exposure. Although results are sometimes conflicting because of confounding factors, epidemiological studies in humans suggest effects of EDCs on prenatal growth, thyroid function, glucose metabolism and obesity, puberty, fertility, and on carcinogenesis mainly through epigenetic mechanisms. This manuscript reviews the reports of a multidisciplinary national meeting on this topic.
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Affiliation(s)
- Maria Elisabeth Street
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Sabrina Angelini
- Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy.
| | - Sergio Bernasconi
- Former Department of Medicine, University of Parma, Via A. Catalani 10, 43123 Parma, Italy.
| | - Ernesto Burgio
- ECERI European Cancer and Environment Research Institute, Square de Meeus, 38-40, 1000 Bruxelles, Belgium.
| | - Alessandra Cassio
- Pediatric Endocrinology Programme, Pediatrics Unit, Department of Woman, Child Health and Urologic Diseases, AOU S. Orsola-Malpighi, Via Massarenti, 11, 40138 Bologna, Italy.
| | - Cecilia Catellani
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Francesca Cirillo
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Annalisa Deodati
- Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, Tor Vergata University, Piazza S. Onofrio 4, 00165 Rome, Italy.
| | - Enrica Fabbrizi
- Department of Pediatrics and Neonatology, Augusto Murri Hospital, Via Augusto Murri, 17, 63900 Fermo, Itlay.
| | - Vassilios Fanos
- Neonatal Intensive Care Unit, Neonatal Pathology and Neonatal Section, AOU and University of Cagliari, via Ospedale, 54, 09124 Cagliari, Italy.
| | - Giancarlo Gargano
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Enzo Grossi
- Villa Santa Maria Institute, Neuropsychiatric Rehabilitation Center, Via IV Novembre 15, 22038 Tavernerio (Como), Italy.
| | - Lorenzo Iughetti
- Department of Medical and Surgical Sciences of the Mother, Children and Adults, Pediatrics Unit, University of Modena and Reggio Emilia, via del Pozzo, 71, 41124 Modena, Italy.
| | - Pietro Lazzeroni
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Alberto Mantovani
- Department of Veterinary Public Health and Food Safety, Food and Veterinary Toxicology Unit ISS⁻National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Lucia Migliore
- Department of Traslational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma, 55, 56123 Pisa, Italy.
| | - Paola Palanza
- Unit of Neuroscience, Department of Medicine and Surgery, University of Parma, Via Gramsci, 14, 43126 Parma, Italy.
| | - Giancarlo Panzica
- Laboratory of Neuroendocrinology, Department of Neuroscience Rita Levi Montalcini, University of Turin, Via Cherasco 15, 10126 Turin, Italy.
- Neuroscience Institute Cavalieri-Ottolenghi (NICO), Regione Gonzole, 10, 10043 Orbassano (Turin), Italy.
| | - Anna Maria Papini
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia, 3-13, 50019 Sesto Fiorentino, Florence, Italy.
| | - Stefano Parmigiani
- Unit of Evolutionary and Functional Biology-Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA)-University of Parma⁻11/a, 43124 Parma, Italy.
| | - Barbara Predieri
- Department of Medical and Surgical Sciences of the Mother, Children and Adults, Pediatrics Unit, University of Modena and Reggio Emilia, via del Pozzo, 71, 41124 Modena, Italy.
| | - Chiara Sartori
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Gabriele Tridenti
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Sergio Amarri
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
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Liang Y, Li J, Jin T, Gu T, Zhu Q, Hu Y, Yang Y, Li J, Wu D, Jiang K, Xu X. Bisphenol-A inhibits improvement of testosterone in anxiety- and depression-like behaviors in gonadectomied male mice. Horm Behav 2018; 102:129-138. [PMID: 29778459 DOI: 10.1016/j.yhbeh.2018.05.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/20/2018] [Accepted: 05/15/2018] [Indexed: 11/30/2022]
Abstract
Bisphenol-A (BPA) is a well-known environmental endocrine disruptor. Developmental exposure to BPA affected a variety of behaviors in multiple model organisms. Our recent study found that exposure to BPA during adulthood aggravated anxiety- and depression-like states in male mice but not in females. In this study, 11-w-old gonadectomied (GDX) male mice daily received subcutaneous injections of testosterone propionate (TP, 0.5 mg/kg), TP and BPA (0.04, 0.4, or 4 mg/kg), or vehicle for 45 days. BPA (0.4 or 4 mg/kg) did not affect the elevated plus maze task of GDX mice but shortened the time on open arms and decreased the frequency of head dips of sham and TP-GDX mice. In forced swim task, BPA prolonged the total time of immobility of both sham and TP-GDX mice but not GDX mice. In addition, BPA reduced the levels of T in the serum and the brain of sham and TP-GDX mice. Western blot analysis further showed that BPA reduced the levels of androgen receptor (AR) and GABA(A)α2 receptor of the hippocampus and the amygdala in sham and inhibited the rescue of TP in these proteins levels of GDX mice. Meanwhile, BPA decreased the level of phospho-ERK1/2 in these two brain regions of sham and TP-GDX mice. These results suggest that long-term exposure to BPA inhibited TP-improved anxiety- and depression-like behaviors in GDX male mice. The down-regulated levels of GABA(A)α2 receptor and AR and an inhibited activity of ERK1/2 pathway in the hippocampus and the amygdala may be involved in these process.
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Affiliation(s)
- Yvfeng Liang
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Jiahong Li
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Tao Jin
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Ting Gu
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Qingjie Zhu
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Yizhong Hu
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Yang Yang
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Jisui Li
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Donghong Wu
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Kesheng Jiang
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China
| | - Xiaohong Xu
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, PR China; Zhejiang Provincial Key Laboratory of Ecology, Zhejiang Normal University, PR China.
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Xin F, Fischer E, Krapp C, Krizman EN, Lan Y, Mesaros C, Snyder NW, Bansal A, Robinson MB, Simmons RA, Bartolomei MS. Mice exposed to bisphenol A exhibit depressive-like behavior with neurotransmitter and neuroactive steroid dysfunction. Horm Behav 2018; 102:93-104. [PMID: 29763587 PMCID: PMC6261494 DOI: 10.1016/j.yhbeh.2018.05.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 05/07/2018] [Accepted: 05/11/2018] [Indexed: 11/28/2022]
Abstract
Fetal exposure to endocrine disrupting chemicals (EDCs) has been associated with adverse neurobehavioral outcomes across the lifespan and can persist across multiple generations of offspring. However, the underlying mechanisms driving these changes are not well understood. We investigated the molecular perturbations associated with EDC-induced behavioral changes in first (F1) and second (F2) filial generations, using the model EDC bisphenol A (BPA). C57BL/6J dams were exposed to BPA from preconception until lactation through the diet at doses (10 μg/kg bw/d-lower dose or 10 mg/kg bw/d-upper dose) representative of human exposure levels. As adults, F1 male offspring exhibited increased depressive-like behavior, measured by the forced swim test, while females were unaffected. These behavioral changes were limited to the F1 generation and were not associated with altered maternal care. Transcriptome analysis by RNA-sequencing in F1 control and upper dose BPA-exposed adult male hippocampus revealed neurotransmitter systems as major pathways disrupted by developmental BPA exposure. High performance liquid chromatography demonstrated a male-specific reduction in hippocampal serotonin. Administration of the selective serotonin reuptake inhibitor fluoxetine (20 mg/kg bw) rescued the depressive-like phenotype in males exposed to lower, but not upper, dose BPA, suggesting distinct mechanisms of action for each exposure dose. Finally, high resolution mass spectrometry revealed reduced circulating levels of the neuroactive steroid dehydroepiandrosterone in BPA-exposed males, suggesting another potential mechanism underlying the depressive-like phenotype. Thus, behavioral changes associated with early life BPA exposure may be mediated by sex-specific disruptions in the serotonergic system and/or sex steroid biogenesis in male offspring.
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Affiliation(s)
- Frances Xin
- Epigenetics Institute, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Center for Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Erin Fischer
- Epigenetics Institute, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Center for Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Christopher Krapp
- Epigenetics Institute, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Elizabeth N Krizman
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Systems Pharmacology and Translational Therapeutics, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yemin Lan
- Epigenetics Institute, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Clementina Mesaros
- Center for Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Center for Cancer Pharmacology, Department of Pharmacology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nathaniel W Snyder
- A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA 19104, USA
| | - Amita Bansal
- Center for Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Division of Neonatology, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA; Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Michael B Robinson
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Systems Pharmacology and Translational Therapeutics, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Rebecca A Simmons
- Center for Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Division of Neonatology, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA; Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Marisa S Bartolomei
- Epigenetics Institute, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Center for Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Abstract
Endocrine disrupting chemicals (EDCs) are compounds that alter the structure and function of the endocrine system and may be contributing to disorders of the reproductive, metabolic, neuroendocrine and other complex systems. Typically, these outcomes cannot be modeled in cell-based or other simple systems necessitating the use of animal testing. Appropriate animal model selection is required to effectively recapitulate the human experience, including relevant dosing and windows of exposure, and ensure translational utility and reproducibility. While classical toxicology heavily relies on inbred rats and mice, and focuses on apical endpoints such as tumor formation or birth defects, EDC researchers have used a greater diversity of species to effectively model more subtle but significant outcomes such as changes in pubertal timing, mammary gland development, and social behaviors. Advances in genomics, neuroimaging and other tools are making a wider range of animal models more widely available to EDC researchers.
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Affiliation(s)
- Heather B Patisaul
- Center for Human Health and the Environment, W.M. Keck Center for Behavioral Biology, Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27695, USA.
| | - Suzanne E Fenton
- Division of the National Toxicology Program (DNTP), NTP Laboratory, National Institute of Environmental Health Sciences (NIEHS), National Institute of Health (NIH), Research Triangle Park, NC, 27709, USA.
| | - David Aylor
- Center for Human Health and the Environment, Bioinformatics Research Center, W.M. Keck Center for Behavioral Biology, Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27695, USA.
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48
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Gonzalez-Perez O, López-Virgen V, Ibarra-Castaneda N. Permanent Whisker Removal Reduces the Density of c-Fos+ Cells and the Expression of Calbindin Protein, Disrupts Hippocampal Neurogenesis and Affects Spatial-Memory-Related Tasks. Front Cell Neurosci 2018; 12:132. [PMID: 29867365 PMCID: PMC5962760 DOI: 10.3389/fncel.2018.00132] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 04/27/2018] [Indexed: 12/19/2022] Open
Abstract
Facial vibrissae, commonly known as whiskers, are the main sensitive tactile system in rodents. Whisker stimulation triggers neuronal activity that promotes neural plasticity in the barrel cortex (BC) and helps create spatial maps in the adult hippocampus. Moreover, activity-dependent inputs and calcium homeostasis modulate adult neurogenesis. Therefore, the neuronal activity of the BC possibly regulates hippocampal functions and neurogenesis. To assess whether tactile information from facial whiskers may modulate hippocampal functions and neurogenesis, we permanently eliminated whiskers in CD1 male mice and analyzed the effects in cellular composition, molecular expression and memory processing in the adult hippocampus. Our data indicated that the permanent deprivation of whiskers reduced in 4-fold the density of c-Fos+ cells (a calcium-dependent immediate early gene) in cornu ammonis subfields (CA1, CA2 and CA3) and 4.5-fold the dentate gyrus (DG). A significant reduction in the expression of calcium-binding proteincalbindin-D28k was also observed in granule cells of the DG. Notably, these changes coincided with an increase in apoptosis and a decrease in the proliferation of neural precursor cells in the DG, which ultimately reduced the number of Bromodeoxyuridine (BrdU)+NeuN+ mature neurons generated after whisker elimination. These abnormalities in the hippocampus were associated with a significant impairment of spatial memory and navigation skills. This is the first evidence indicating that tactile inputs from vibrissal follicles strongly modify the expression of c-Fos and calbindin in the DG, disrupt different aspects of hippocampal neurogenesis, and support the notion that spatial memory and navigation skills strongly require tactile information in the hippocampus.
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Affiliation(s)
- Oscar Gonzalez-Perez
- Laboratory of Neuroscience, School of Psychology, University of Colima, Colima, Mexico.,El Colegio de Colima, Colima, Mexico
| | - Verónica López-Virgen
- Laboratory of Neuroscience, School of Psychology, University of Colima, Colima, Mexico.,Medical Sciences PhD Program, School of Medicine, University of Colima, Colima, Mexico
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49
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Sui Y, Park SH, Wang F, Zhou C. Perinatal Bisphenol A Exposure Increases Atherosclerosis in Adult Male PXR-Humanized Mice. Endocrinology 2018; 159:1595-1608. [PMID: 29425287 PMCID: PMC5939635 DOI: 10.1210/en.2017-03250] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 01/31/2018] [Indexed: 01/19/2023]
Abstract
Bisphenol A (BPA) is a base chemical used extensively in numerous consumer products, and human exposure to BPA is ubiquitous. Higher BPA exposure has been associated with an increased risk of atherosclerosis and cardiovascular disease (CVD) in multiple human population-based studies. However, the underlying mechanisms responsible for the associations remain elusive. We previously reported that BPA activates the xenobiotic receptor pregnane X receptor (PXR), which has proatherogenic effects in animal models. Because BPA is a potent agonist for human PXR but does not affect rodent PXR activity, a suitable PXR-humanized apolipoprotein E-deficient (huPXR•ApoE-/-) mouse model was developed to study BPA's atherogenic effects. Chronic BPA exposure increased atherosclerosis in the huPXR•ApoE-/- mice. We report that BPA exposure can also activate human PXR signaling in the heart tubes of huPXR•ApoE-/- embryos, and perinatal BPA exposure exacerbated atherosclerosis in adult male huPXR•ApoE-/- offspring. However, atherosclerosis development in female offspring was not affected by perinatal BPA exposure. Perinatal BPA exposure did not affect plasma lipid levels but increased aortic and atherosclerotic lesional fatty acid transporter CD36 expression in male huPXR•ApoE-/- offspring. Mechanistically, PXR epigenetically regulated CD36 expression by increasing H3K4me3 levels and decreasing H3K27me3 levels in the CD36 promoter in response to perinatal BPA exposure. The findings from the present study contribute to our understanding of the association between BPA exposure and increased atherosclerosis or CVD risk in humans, and activation of human PXR should be considered for future BPA risk assessment.
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Affiliation(s)
- Yipeng Sui
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Se-Hyung Park
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Fang Wang
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Changcheng Zhou
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
- Correspondence: Changcheng Zhou, PhD, Department of Pharmacology and Nutritional Sciences, University of Kentucky, 900 South Limestone Street, #517, Lexington, Kentucky 40536. E-mail:
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50
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Gonçalves R, Zanatta AP, Cavalari FC, do Nascimento MAW, Delalande-Lecapitaine C, Bouraïma-Lelong H, Silva FRMB. Acute effect of bisphenol A: Signaling pathways on calcium influx in immature rat testes. Reprod Toxicol 2018; 77:94-102. [PMID: 29476780 DOI: 10.1016/j.reprotox.2018.02.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 02/15/2018] [Accepted: 02/20/2018] [Indexed: 02/07/2023]
Abstract
We investigated the acute effect of low concentrations of BPA on calcium influx and the mechanism of action of BPA in this rapid response in the rat testis. BPA increased calcium influx at 1 pM and 1 nM at 300 s of incubation, in a similar manner to that of estradiol. At 1 pM, BPA stimulated calcium influx independently of classical estrogen receptors, consistent with a G-protein coupled receptor. This effect also involves the modulation of ionic channels, such as K+, TRPV1 and Cl- channels. Furthermore, BPA is able to modulate calcium from intracellular storages by inhibiting SERCA and activating IP3 receptor/Ca2+ channels at the endoplasmic reticulum and activate kinase proteins, such as PKA and PKC. The rapid responses of BPA on calcium influx could, in turn, trigger a cross talk by MEK and p38MAPK activation and also mediate genomic responses.
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Affiliation(s)
- Renata Gonçalves
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; UNOCHAPECÓ, Brazil; Normandie Univ, France; UNICAEN, Laboratoire Estrogènes, Reproduction, Cancer, CAEN cedex 5, France
| | | | - Fernanda Carvalho Cavalari
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Monica Andressa Wessner do Nascimento
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Christelle Delalande-Lecapitaine
- Normandie Univ, France; UNICAEN, Laboratoire Estrogènes, Reproduction, Cancer, CAEN cedex 5, France; INRA USC 2006, CAEN cedex 5, France
| | - Hélène Bouraïma-Lelong
- Normandie Univ, France; UNICAEN, Laboratoire Estrogènes, Reproduction, Cancer, CAEN cedex 5, France; INRA USC 2006, CAEN cedex 5, France
| | - Fátima Regina Mena Barreto Silva
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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