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Endocrine Disruptor Compounds in Environment: Focus on Women’s Reproductive Health and Endometriosis. Int J Mol Sci 2023; 24:ijms24065682. [PMID: 36982755 PMCID: PMC10058284 DOI: 10.3390/ijms24065682] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/20/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Endometriosis is an estrogen-dependent gynecologic illness that has long-term effects on a woman’s fertility, physical health, and overall quality of life. Growing evidence suggests that endocrine-disrupting chemicals (EDCs) may be etiologically involved in the development and severity of the disease. We consider the available human evidence on EDCs and endometriosis, limiting ourselves to studies that have individually assessed chemical amounts in women. Dioxins, BPA, Phthalates, and other endocrine disruptors, like DDT, are among the evidence indicating an environmental etiology for endometriosis. Collectively, this review describes how environmental toxins are linked to lower fertility in women, as well as a number of reproductive diseases, focusing on the pathology of endometriosis and its treatments. Importantly, this review can be used to investigate techniques for preventing the negative effects of EDC exposure.
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Integrated Genomic and Bioinformatics Approaches to Identify Molecular Links between Endocrine Disruptors and Adverse Outcomes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19010574. [PMID: 35010832 PMCID: PMC8744944 DOI: 10.3390/ijerph19010574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/13/2021] [Accepted: 12/21/2021] [Indexed: 12/04/2022]
Abstract
Exposure to Endocrine Disrupting Chemicals (EDC) has been linked with several adverse outcomes. In this review, we examine EDCs that are pervasive in the environment and are of concern in the context of human, animal, and environmental health. We explore the consequences of EDC exposure on aquatic life, terrestrial animals, and humans. We focus on the exploitation of genomics technologies and in particular whole transcriptome sequencing. Genome-wide analyses using RNAseq provides snap shots of cellular, tissue and whole organism transcriptomes under normal physiological and EDC perturbed conditions. A global view of gene expression provides highly valuable information as it uncovers gene families or more specifically, pathways that are affected by EDC exposures, but also reveals those that are unaffected. Hypotheses about genes with unknown functions can also be formed by comparison of their expression levels with genes of known function. Risk assessment strategies leveraging genomic technologies and the development of toxicology databases are explored. Finally, we review how the Adverse Outcome Pathway (AOP) has exploited this high throughput data to provide a framework for toxicology studies.
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Mehinto AC, Thornton Hampton LM, Vidal-Dorsch DE, Garcia-Reyero N, Arick MA, Maruya KA, Lao W, Vulpe CD, Brown-Augustine M, Loguinov A, Bay SM. Transcriptomic response patterns of hornyhead turbot (Pleuronichthys verticalis) dosed with polychlorinated biphenyls and polybrominated diphenyl ethers. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2021; 38:100822. [PMID: 33684654 DOI: 10.1016/j.cbd.2021.100822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/04/2020] [Accepted: 01/19/2021] [Indexed: 12/15/2022]
Abstract
To evaluate the impact of environmental contaminants on aquatic health, extensive surveys of fish populations have been conducted using bioaccumulation as an indicator of impairment. While these studies have reported mixtures of chemicals in fish tissues, the relationship between specific contaminants and observed adverse impacts remains poorly understood. The present study aimed to characterize the toxicological responses induced by persistent organic pollutants in wild-caught hornyhead turbot (P. verticalis). To do so, hornyhead turbot were interperitoneally injected with a single dose of PCB or PBDE congeners prepared using environmentally realistic mixture proportions. After 96-hour exposure, the livers were excised and analyzed using transcriptomic approaches and analytical chemistry. Concentrations of PCBs and PBDEs measured in the livers indicated clear differences across treatments, and congener profiles closely mirrored our expectations. Distinct gene profiles were characterized for PCB and PBDE exposed fish, with significant differences observed in the expression of genes associated with immune responses, endocrine-related functions, and lipid metabolism. Our findings highlight the key role that transcriptomics can play in monitoring programs to assess chemical-induced toxicity in heterogeneous group of fish (mixed gender and life stage) as is typically found during field surveys. Altogether, the present study provides further evidence of the potential of transcriptomic tools to improve aquatic health assessment and identify causative agents.
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Affiliation(s)
- Alvine C Mehinto
- Department of Toxicology, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA; Department of Chemistry, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA.
| | - Leah M Thornton Hampton
- Department of Toxicology, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA
| | - Doris E Vidal-Dorsch
- Department of Toxicology, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA
| | - Natàlia Garcia-Reyero
- Environmental Laboratory, US Army Engineer Research & Development Center, Vicksburg, MS 39180, USA
| | - Mark A Arick
- Institute for Genomics, Biocomputing & Biotechnology, Mississippi State University, Starkville, MS 39762, USA
| | - Keith A Maruya
- Department of Chemistry, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA
| | - Wenjian Lao
- Department of Chemistry, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA
| | - Christopher D Vulpe
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Marianna Brown-Augustine
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Alex Loguinov
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Steven M Bay
- Department of Toxicology, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA
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Huff M, da Silveira W, Starr Hazard E, Courtney SM, Renaud L, Hardiman G. Systems analysis of the liver transcriptome in adult male zebrafish exposed to the non-ionic surfactant nonylphenol. Gen Comp Endocrinol 2019; 271:1-14. [PMID: 30563618 DOI: 10.1016/j.ygcen.2018.10.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 09/25/2018] [Accepted: 10/23/2018] [Indexed: 01/17/2023]
Abstract
Nonylphenol (NP) arises from the environmental degradation of nonylphenol ethoxylates. It is a ubiquitous environmental contaminant and has been detected at levels up to 167 nM in rivers in the United States. NP is an endocrine disruptor (ED) that can act as an agonist for estrogen receptors. The Adverse Outcome Pathway (AOP) framework defines an adverse outcome as the causal result of a series of molecular initiating events (MIEs) and key events (KEs) that lead to altered phenotypes. This study examined the liver transcriptome after a 21 day exposure to NP and 17β-estradiol (E2) by exploiting the zebrafish (Danio rerio) as a systems toxicology model. The goal of this study was to tease out non-estrogenic genomic signatures associated with NP exposure using DNA microarray and RNA sequencing. Our experimental design included E2 as a positive and potent estrogenic control in order to effectively compare and contrast the 2 compounds. This approach allowed us to identify hepatic transcriptomic perturbations that could serve as MIEs for adverse health outcomes in response to NP. Our results revealed that exposure to NP was associated with differential expression (DE) of genes associated with the development of steatosis, disruption of metabolism, altered immune response, and metabolism of reactive oxygen species, further highlighting NP as a chemical of emerging concern (CEC).
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Affiliation(s)
- Matthew Huff
- MUSC Bioinformatics, Center for Genomics Medicine, Medical University of South Carolina, Charleston, SC 29415, United States; MS in Biomedical Sciences Program, Medical University of South Carolina, United States
| | - Willian da Silveira
- MUSC Bioinformatics, Center for Genomics Medicine, Medical University of South Carolina, Charleston, SC 29415, United States; Department of Pathology and Laboratory Medicine, Medical University of South Carolina, United States
| | - E Starr Hazard
- MUSC Bioinformatics, Center for Genomics Medicine, Medical University of South Carolina, Charleston, SC 29415, United States
| | - Sean M Courtney
- MUSC Bioinformatics, Center for Genomics Medicine, Medical University of South Carolina, Charleston, SC 29415, United States
| | - Ludivine Renaud
- Department of Medicine, Medical University of South Carolina, United States
| | - Gary Hardiman
- MUSC Bioinformatics, Center for Genomics Medicine, Medical University of South Carolina, Charleston, SC 29415, United States; Department of Medicine, Medical University of South Carolina, United States; Department of Medicine, University of California San Diego, United States; Department of Public Health Sciences, Medical University of South Carolina, United States; Laboratory for Marine Systems Biology, Hollings Marine Laboratory, Charleston, SC 29412, United States; Institute for Global Food Security, Queens University Belfast, Stranmillis Road, Belfast BT9 5AG, UK.
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Renaud L, Agarwal N, Richards DJ, Falcinelli S, Hazard ES, Carnevali O, Hyde J, Hardiman G. Transcriptomic analysis of short-term 17α-ethynylestradiol exposure in two Californian sentinel fish species sardine (Sardinops sagax) and mackerel (Scomber japonicus). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 244:926-937. [PMID: 30469287 DOI: 10.1016/j.envpol.2018.10.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 09/24/2018] [Accepted: 10/11/2018] [Indexed: 06/09/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are substances which disrupt normal functioning of the endocrine system by interfering with hormone regulated physiological pathways. Aquatic environments provide the ultimate reservoir for many EDCs as they enter rivers and the ocean via effluent discharges and accumulate in sediments. One EDC widely dispersed in municipal wastewater effluent discharges is 17α-ethynylestradiol (EE2), which is one of the most widely prescribed medicines. EE2 is a bio-active estrogen employed in the majority of oral contraceptive pill formulations. As evidence of the health risks posed by EDCs mount, there is an urgent need to improve diagnostic tools for monitoring the effects of pollutants. As the cost of high throughput sequencing (HTS) diminishes, transcriptional profiling of an organism in response to EDC perturbation presents a cost-effective way of screening a wide range of endocrine responses. Coastal pelagic filter feeding fish species analyzed using HTS provide an excellent tool for EDC risk assessment in the marine environment. Unfortunately, there are limited genome sequence data and annotation for many of these species including Pacific sardine (Sardinops sagax) and chub mackerel (Scomber japonicus), which limits the utility of molecular tools such as HTS to interrogate the effects of endocrine disruption. In this study, we carried out RNA sequencing (RNAseq) of liver RNA harvested from wild sardine and mackerel exposed for 5 h under laboratory conditions to a concentration of 12.5 pM EE2 in the tank water. We developed an analytical framework for transcriptomic analyses of species with limited genomic information. EE2 exposure altered expression patterns of key genes involved in important metabolic and physiological processes. The systems approach presented here provides a powerful tool for obtaining a comprehensive picture of endocrine disruption in aquatic organisms.
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Affiliation(s)
- Ludivine Renaud
- Department of Medicine, Nephrology, Medical University of South Carolina, Charleston, SC, USA
| | - Nisha Agarwal
- Biomedical Informatics Research Center, San Diego State University, San Diego, CA, USA
| | | | - Silvia Falcinelli
- Dipartimento di Scienze della Vita e Dell'Ambiente, Università Politecnica della Marche, 60131, Ancona, Italy
| | - E Starr Hazard
- MUSC Bioinformatics, Center for Genomics Medicine, Medical University of South Carolina, Charleston, SC, USA; Academic Affairs Faculty & Computational Biology Resource Center, Medical University of South Carolina, Charleston, SC, USA
| | - Oliana Carnevali
- Dipartimento di Scienze della Vita e Dell'Ambiente, Università Politecnica della Marche, 60131, Ancona, Italy
| | - John Hyde
- NOAA Fisheries, Southwest Fisheries Science Center, La Jolla, CA, USA
| | - Gary Hardiman
- Department of Medicine, Nephrology, Medical University of South Carolina, Charleston, SC, USA; Biomedical Informatics Research Center, San Diego State University, San Diego, CA, USA; MUSC Bioinformatics, Center for Genomics Medicine, Medical University of South Carolina, Charleston, SC, USA; Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA; Laboratory for Marine Systems Biology, Hollings Marine Laboratory, Charleston, SC, USA; School of Biological Sciences & Institute for Global Food Security, Queens University Belfast, Stranmillis Road, Belfast BT9 5AG, UK.
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Adeogun AO, Ibor OR, Chukwuka AV, Regoli F, Arukwe A. The intersex phenomenon in Sarotherodon melanotheron from Lagos lagoon (Nigeria): Occurrence and severity in relation to contaminants burden in sediment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 244:747-756. [PMID: 30384080 DOI: 10.1016/j.envpol.2018.10.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 10/08/2018] [Accepted: 10/18/2018] [Indexed: 06/08/2023]
Abstract
The correlation between endocrine active contaminants in the environment and alterations in reproductive development of Sarotherodon melanotheron from Lagos lagoon has been investigated. Sediment and a total of 155 fish (74 males and 81 females) were collected between November 2014-March 2015 from selected contaminated sites (Ikorodu, Oworonshoki, Makoko and Idumota) and a putative control site (Igbore) along the lagoon. Sediment contaminant analysis revealed, significantly higher concentration of lindane, dieldrin, 4-iso-nonylphenol, 4-t-octylphenol and monobutyltin cation at the contaminated sites. Examination of gross morphological and histological changes of fish gonads showed a 27.4% prevalence of intersex in the sampled fish, of which 78% were males (testes-ova) and 22% were females (ovo-testis). Quantitative PCR (qPCR) of liver transcripts revealed the presence of vitellogenin (vtg) levels in male fish from contaminated sites. Zona radiata proteins (zrp) mRNA levels were significantly higher in females, compared to male fish. In general, significantly lower vtg and zrp transcripts levels were recorded at Igbore (control site), compared with contaminated sites. Principal component analysis (PCA) showed site and sex relationship in biological responses and contaminants, including trace metals, demonstrating that measured endocrine responses in fish were associated with contaminant burden in sediment. In addition, positive relationships were observed in male fish from Idumota, Oworonshoki and Ikorodu with vtg and dieldrin/4-iso-nonyphenol, with higher levels in male fish, compared to females. Further, contaminants from the Makoko, Oworonshoki and Ikorodu sites were positively associated with higher GSI and zrp in females. More importantly, the severity of intersex and changes in vtg transcripts imply a progressive feminization of male fish with concomitant alteration in the reproductive health of fish inhabiting the Lagos lagoon.
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Affiliation(s)
- Aina O Adeogun
- Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Oju R Ibor
- Department of Zoology and Environmental Biology, University of Calabar, Calabar, Nigeria
| | - Azubuike V Chukwuka
- Department of Zoology, University of Ibadan, Ibadan, Nigeria; National Environmental Standards and Regulation Enforcement Agency, Nigeria
| | - Francesco Regoli
- Polytechnic University of Marche, Department of Life and Environmental Sciences, Via Brecce Bianche, 60100, Ancona, Italy
| | - Augustine Arukwe
- Department of Biology, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway.
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Richards DJ, Renaud L, Agarwal N, Starr Hazard E, Hyde J, Hardiman G. De Novo Hepatic Transcriptome Assembly and Systems Level Analysis of Three Species of Dietary Fish, Sardinops sagax, Scomber japonicus, and Pleuronichthys verticalis. Genes (Basel) 2018; 9:genes9110521. [PMID: 30366465 PMCID: PMC6266404 DOI: 10.3390/genes9110521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 10/17/2018] [Indexed: 12/31/2022] Open
Abstract
The monitoring of marine species as sentinels for ecosystem health has long been a valuable tool worldwide, providing insight into how both anthropogenic pollution and naturally occurring phenomena (i.e., harmful algal blooms) may lead to human and animal dietary concerns. The marine environments contain many contaminants of anthropogenic origin that have sufficient similarities to steroid and thyroid hormones, to potentially disrupt normal endocrine physiology in humans, fish, and other animals. An appropriate understanding of the effects of these endocrine disrupting chemicals (EDCs) on forage fish (e.g., sardine, anchovy, mackerel) can lead to significant insight into how these contaminants may affect local ecosystems in addition to their potential impacts on human health. With advancements in molecular tools (e.g., high-throughput sequencing, HTS), a genomics approach offers a robust toolkit to discover putative genetic biomarkers in fish exposed to these chemicals. However, the lack of available sequence information for non-model species has limited the development of these genomic toolkits. Using HTS and de novo assembly technology, the present study aimed to establish, for the first time for Sardinops sagax (Pacific sardine), Scomber japonicas (Pacific chub mackerel) and Pleuronichthys verticalis (hornyhead turbot), a de novo global transcriptome database of the liver, the primary organ involved in detoxification. The assembled transcriptomes provide a foundation for further downstream validation, comparative genomic analysis and biomarker development for future applications in ecotoxicogenomic studies, as well as environmental evaluation (e.g., climate change) and public health safety (e.g., dietary screening).
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Affiliation(s)
- Dylan J Richards
- Bioengineering Department, Clemson University, Charleston, SC 29425, USA.
| | - Ludivine Renaud
- Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA.
- Center for Genomic Medicine, Bioinformatics, Medical University of South Carolina, Charleston, SC 29425, USA.
| | - Nisha Agarwal
- Biomedical Informatics Research Center, San Diego State University, San Diego, CA 92182, USA.
| | - E Starr Hazard
- Center for Genomic Medicine, Bioinformatics, Medical University of South Carolina, Charleston, SC 29425, USA.
- Academic Affairs Faculty & Computational Biology Resource Center, Medical University of South Carolina, Charleston, SC 29425, USA.
| | - John Hyde
- NOAA Fisheries, Southwest Fisheries Science Center, La Jolla, CA 92037, USA.
| | - Gary Hardiman
- Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA.
- Center for Genomic Medicine, Bioinformatics, Medical University of South Carolina, Charleston, SC 29425, USA.
- Biomedical Informatics Research Center, San Diego State University, San Diego, CA 92182, USA.
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC 29425, USA.
- Laboratory for Marine Systems Biology, Hollings Marine Laboratory, Charleston, SC 29412, USA.
- School of Biological Sciences & Institute for Global Food Security, Queens University Belfast, Stranmillis Road, Belfast BT9 5AG, UK.
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Yadetie F, Zhang X, Hanna EM, Aranguren-Abadía L, Eide M, Blaser N, Brun M, Jonassen I, Goksøyr A, Karlsen OA. RNA-Seq analysis of transcriptome responses in Atlantic cod (Gadus morhua) precision-cut liver slices exposed to benzo[a]pyrene and 17α-ethynylestradiol. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 201:174-186. [PMID: 29929084 DOI: 10.1016/j.aquatox.2018.06.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 06/01/2018] [Accepted: 06/06/2018] [Indexed: 06/08/2023]
Abstract
Polycyclic aromatic hydrocarbons such as benzo[a]pyrene (BaP) that activate the aryl hydrocarbon receptor (Ahr) pathway, and endocrine disruptors acting through the estrogen receptor pathway are among environmental pollutants of major concern. In this work, we exposed Atlantic cod (Gadus morhua) precision-cut liver slices (PCLS) to BaP (10 nM and 1000 nM), ethynylestradiol (EE2) (10 nM and 1000 nM), and equimolar mixtures of BaP and EE2 (10 nM and 1000 nM) for 48 h, and performed RNA-Seq based transcriptome mapping followed by systematic bioinformatics analyses. Our gene expression analysis showed that several genes were differentially expressed in response to BaP and EE2 treatments in PCLS. Strong up-regulation of genes coding for the cytochrome P450 1a (Cyp1a) enzyme and the Ahr repressor (Ahrrb) was observed in BaP treated PCLS. EE2 treatment of liver slices strongly up-regulated genes coding for precursors of vitellogenin (Vtg) and eggshell zona pellucida (Zp) proteins. As expected, pathway enrichment and network analysis showed that the Ahr and estrogen receptor pathways are among the top affected by BaP and EE2 treatments, respectively. Interestingly, two genes coding for fibroblast growth factor 3 (Fgf3) and fibroblast growth factor 4 (Fgf4) were up-regulated by EE2 in this study. To our knowledge, the fgf3 and fgf4 genes have not previously been described in relation to estrogen signaling in fish liver, and these results suggest the modulation of the FGF signaling pathway by estrogens in fish. The signature expression profiles of top differentially expressed genes in response to the single compound (BaP or EE2) treatment were generally maintained in the expression responses to the equimolar binary mixtures. However, in the mixture-treated groups, BaP appeared to have anti-estrogenic effects as observed by lower number of differentially expressed putative EE2 responsive genes. Our in-depth quantitative analysis of changes in liver transcriptome in response to BaP and EE2, using PCLS tissue culture provides further mechanistic insights into effects of the compounds. Moreover, the analyses demonstrate the usefulness of PCLS in cod for omics experiments.
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Affiliation(s)
- Fekadu Yadetie
- Department of Biological Sciences, University of Bergen, Bergen, Norway.
| | - Xiaokang Zhang
- Computational Biology Unit, Department of Informatics, University of Bergen, Bergen, Norway.
| | - Eileen Marie Hanna
- Computational Biology Unit, Department of Informatics, University of Bergen, Bergen, Norway.
| | | | - Marta Eide
- Department of Biological Sciences, University of Bergen, Bergen, Norway.
| | - Nello Blaser
- Department of Mathematics, University of Bergen, Bergen, Norway.
| | - Morten Brun
- Department of Mathematics, University of Bergen, Bergen, Norway.
| | - Inge Jonassen
- Computational Biology Unit, Department of Informatics, University of Bergen, Bergen, Norway.
| | - Anders Goksøyr
- Department of Biological Sciences, University of Bergen, Bergen, Norway.
| | - Odd André Karlsen
- Department of Biological Sciences, University of Bergen, Bergen, Norway.
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Systems Analysis of the Liver Transcriptome in Adult Male Zebrafish Exposed to the Plasticizer (2-Ethylhexyl) Phthalate (DEHP). Sci Rep 2018; 8:2118. [PMID: 29391432 PMCID: PMC5794889 DOI: 10.1038/s41598-018-20266-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 01/15/2018] [Indexed: 02/08/2023] Open
Abstract
The organic compound diethylhexyl phthalate (DEHP) represents a high production volume chemical found in cosmetics, personal care products, laundry detergents, and household items. DEHP, along with other phthalates causes endocrine disruption in males. Exposure to endocrine disrupting chemicals has been linked to the development of several adverse health outcomes with apical end points including Non-Alcoholic Fatty Liver Disease (NAFLD). This study examined the adult male zebrafish (Danio rerio) transcriptome after exposure to environmental levels of DEHP and 17α-ethinylestradiol (EE2) using both DNA microarray and RNA-sequencing technologies. Our results show that exposure to DEHP is associated with differentially expressed (DE) transcripts associated with the disruption of metabolic processes in the liver, including perturbation of five biological pathways: ‘FOXA2 and FOXA3 transcription factor networks’, ‘Metabolic pathways’, ‘metabolism of amino acids and derivatives’, ‘metabolism of lipids and lipoproteins’, and ‘fatty acid, triacylglycerol, and ketone body metabolism’. DE transcripts unique to DEHP exposure, not observed with EE2 (i.e. non-estrogenic effects) exhibited a signature related to the regulation of transcription and translation, and ruffle assembly and organization. Collectively our results indicate that exposure to low DEHP levels modulates the expression of liver genes related to fatty acid metabolism and the development of NAFLD.
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Díaz N, Piferrer F. Estrogen exposure overrides the masculinizing effect of elevated temperature by a downregulation of the key genes implicated in sexual differentiation in a fish with mixed genetic and environmental sex determination. BMC Genomics 2017; 18:973. [PMID: 29254503 PMCID: PMC5735924 DOI: 10.1186/s12864-017-4345-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 11/21/2017] [Indexed: 12/30/2022] Open
Affiliation(s)
- Noelia Díaz
- Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas (CSIC), Passeig Marítim, 37-49, E-08003, Barcelona, Spain.,Present address: Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149, Münster, Germany
| | - Francesc Piferrer
- Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas (CSIC), Passeig Marítim, 37-49, E-08003, Barcelona, Spain.
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Marjan P, Martyniuk CJ, Fuzzen MLM, MacLatchy DL, McMaster ME, Servos MR. Returning to normal? Assessing transcriptome recovery over time in male rainbow darter (Etheostoma caeruleum) liver in response to wastewater-treatment plant upgrades. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:2108-2122. [PMID: 28106290 DOI: 10.1002/etc.3741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/05/2016] [Accepted: 01/17/2017] [Indexed: 06/06/2023]
Abstract
The present study measured hepatic transcriptome responses in male rainbow darter (Etheostoma caeruleum) exposed to 2 municipal wastewater-treatment plants (MWWTPs; Kitchener and Waterloo) over 4 fall seasons (2011-2014) in the Grand River (Ontario, Canada). The overall goal was to determine if upgrades at the Kitchener MWWTP (in 2012) resulted in transcriptome responses indicative of improved effluent quality. The number of differentially expressed probes in fish downstream of the Kitchener outfall (904-1223) remained comparable to that downstream of Waterloo (767-3867). Noteworthy was that year and the interaction of year and site explained variability in more than twice the number of transcripts than site alone, suggesting that year and the interaction of year and site had a greater effect on the transcriptome than site alone. Gene set enrichment analysis revealed a gradual reduction in the number of gene ontologies over time at exposure sites, which corresponded with lower contaminant load. Subnetwork enrichment analysis revealed that there were noticeable shifts in the cell pathways differently expressed in the liver preupgrade and postupgrade. The dominant pathways altered preupgrade were related to genetic modifications and cell division, whereas postupgrade they were associated with the immune system, reproduction, and biochemical responses. Molecular pathways were dynamic over time, and following the upgrades, there was little evidence that gene expression profiles in fish collected from high-impact sites postupgrade were more similar to those in fish collected from reference site. Environ Toxicol Chem 2017;36:2108-2122. © 2017 SETAC.
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Affiliation(s)
- Patricija Marjan
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
| | - Christopher J Martyniuk
- Center for Environmental and Human Toxicology and Department of Physiological Science, Genetics Institute, College of Medicine, University of Florida, Gainesville, Florida
| | - Meghan L M Fuzzen
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
| | - Deborah L MacLatchy
- Department of Biology, Wilfrid Laurier University, Waterloo, Ontario, Canada
| | - Mark E McMaster
- Canada Center Inland Waters, National Water Research Institute, Aquatic Contaminant Research Division, Environment Canada, Burlington, Ontario, Canada
| | - Mark R Servos
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
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12
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Marjan P, Bragg LM, MacLatchy DL, Servos MR, Martyniuk CJ. How Does Reference Site Selection Influence Interpretation of Omics Data?: Evaluating Liver Transcriptome Responses in Male Rainbow Darter (Etheostoma caeruleum) across an Urban Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:6470-6479. [PMID: 28489360 DOI: 10.1021/acs.est.7b00894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Studies quantifying the influence of reference site selection on transcriptomic profiles in aquatic organisms exposed to complex mixtures are lacking in the literature, despite the significant implications of such research for the interpretation of omics data sets. We measured hepatic transcriptomic responses in fish across an urban environment in the central Grand River watershed (Ontario, Canada). Adult male rainbow darter (RBD) (Etheostoma caeruleum) were collected from nine sites at varying distances from two major municipal wastewater treatment plants (MWWTPs) (Waterloo, Kitchener), including three upstream reference sites. The transcriptomic response in RBD was independently compared with that of fish from each of the three reference sites. Data collected in fish downstream of the Waterloo MWWTP (poorest effluent quality) suggested that ∼15.5% of the transcriptome response was influenced by reference site selection. In contrast, at sites where the impact of MWWTPs was less-pronounced and fish showed less of a transcriptome response, reference site selection had a greater influence (i.e., ∼56.9% of transcripts were different depending on the site used). This study highlights the importance of conducting transcriptomics studies that leverage more than one reference site, and it broadens our understanding of the molecular responses in fish in dynamic natural environments.
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Affiliation(s)
- Patricija Marjan
- Department of Biology, University of Waterloo , 200 University Avenue West, N2L 3G1 Waterloo, Ontario, Canada
| | - Leslie M Bragg
- Department of Biology, University of Waterloo , 200 University Avenue West, N2L 3G1 Waterloo, Ontario, Canada
| | - Deborah L MacLatchy
- Department of Biology, Wilfrid Laurier University , 75 University Avenue West, N2L 3C5 Waterloo, Ontario, Canada
| | - Mark R Servos
- Department of Biology, University of Waterloo , 200 University Avenue West, N2L 3G1 Waterloo, Ontario, Canada
| | - Cristopher J Martyniuk
- Center for Environmental and Human Toxicology & Department of Physiological Sciences, University of Florida , 2187 Mowry Road, Building 471, PO Box 110885, Gainesville, Florida 32611, United States
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Miccoli A, Maradonna F, De Felice A, Caputo Barucchi V, Estonba A, Genangeli M, Vittori S, Leonori I, Carnevali O. Detection of endocrine disrupting chemicals and evidence of their effects on the HPG axis of the European anchovy Engraulis encrasicolus. MARINE ENVIRONMENTAL RESEARCH 2017; 127:137-147. [PMID: 28411869 DOI: 10.1016/j.marenvres.2017.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 04/04/2017] [Accepted: 04/04/2017] [Indexed: 06/07/2023]
Abstract
Natural/synthetic Endocrine Disrupting Chemicals (EDCs) may display estrogenic activity and a lower potency than 17β-estradiol. Nonetheless, their concentrations and additive effects can affect the endocrine system and reproductive processes related to the Hypothalamic-Pituitary-Gonadal (HPG) axis. Because of their persistence in both the environment and biological systems, they ultimately target multi-level predators, including humans. We detected presence and effects of xenobiotics on wild anchovy Engraulis encrasicolus in the Western Adriatic Sea. Twenty-one PCBs and five organochlorines were detected on the order of ng g-1; vitellogenin, vitellogenin receptor and genes encoding for the zona radiata proteins were evaluated in gonad and/or liver and found transcribed in male specimens; in addition, intersex was histologically identified in the 13% of testis. Our results have developed the understanding of the European anchovy's reproductive toxicological risk and our approach could assist the comprehension of the complex dynamics of commercially relevant Teleost species.
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Affiliation(s)
- Andrea Miccoli
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy; CNR-National Research Council of Italy, ISMAR-Marine Sciences Institute, Ancona, Italy.
| | - Francesca Maradonna
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy.
| | - Andrea De Felice
- CNR-National Research Council of Italy, ISMAR-Marine Sciences Institute, Ancona, Italy.
| | - Vincenzo Caputo Barucchi
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy.
| | - Andone Estonba
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, UPV/EHU, Leioa, Spain.
| | | | - Sauro Vittori
- School of Pharmacy, University of Camerino, Camerino, Italy.
| | - Iole Leonori
- CNR-National Research Council of Italy, ISMAR-Marine Sciences Institute, Ancona, Italy.
| | - Oliana Carnevali
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy.
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Ubaldi M, Ricciardelli E, Pasqualini L, Sannino G, Soverchia L, Ruggeri B, Falcinelli S, Renzi A, Ludka C, Ciccocioppo R, Hardiman G. Biomarkers of hippocampal gene expression in a mouse restraint chronic stress model. Pharmacogenomics 2016; 16:471-82. [PMID: 25916519 DOI: 10.2217/pgs.15.3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Acute stress provides many beneficial effects whereas chronic stress contributes to a variety of human health issues including anxiety, depression, gastrointestinal problems, cardiac disease, sleep disorders and obesity. The goal of this work was to identify, using a rodent model, hippocampal gene signatures associated with prolonged chronic stress representing candidate biomarkers and therapeutic targets for early diagnosis and pharmacological intervention for stress induced disease. MATERIALS & METHODS Mice underwent 'restraint stress' over 7 consecutive days and hippocampal gene-expression changes were analyzed at 3, 12 and 24 h following the final restraint treatment. RESULTS Data indicated that mice exposed to chronic restraint stress exhibit a differential gene-expression profile compared with non-stressed controls. The greatest differences were observed 12 and 24 h following the final stress test. CONCLUSION Our study indicated that Gpr88, Ttr, Gh and Tac1 mRNAs were modulated in mice exposed to chronic restraint stress. These transcripts represent a panel of biomarkers and druggable targets for further analysis in the context of chronic stress associated disease in humans.
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Affiliation(s)
- Massimo Ubaldi
- School of Pharmacy, Pharmacology Unit, University of Camerino, Via Madonna delle Carceri 9, Camerino, Italy
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Bahamonde PA, Feswick A, Isaacs MA, Munkittrick KR, Martyniuk CJ. Defining the role of omics in assessing ecosystem health: Perspectives from the Canadian environmental monitoring program. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:20-35. [PMID: 26771350 DOI: 10.1002/etc.3218] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 05/16/2015] [Accepted: 08/20/2015] [Indexed: 05/22/2023]
Abstract
Scientific reviews and studies continue to describe omics technologies as the next generation of tools for environmental monitoring, while cautioning that there are limitations and obstacles to overcome. However, omics has not yet transitioned into national environmental monitoring programs designed to assess ecosystem health. Using the example of the Canadian Environmental Effects Monitoring (EEM) program, the authors describe the steps that would be required for omics technologies to be included in such an established program. These steps include baseline collection of omics endpoints across different species and sites to generate a range of what is biologically normal within a particular ecosystem. Natural individual variability in the omes is not adequately characterized and is often not measured in the field, but is a key component to an environmental monitoring program, to determine the critical effect size or action threshold for management. Omics endpoints must develop a level of standardization, consistency, and rigor that will allow interpretation of the relevance of changes across broader scales. To date, population-level consequences of routinely measured endpoints such as reduced gonad size or intersex in fish is not entirely clear, and the significance of genome-wide molecular, proteome, or metabolic changes on organism or population health is further removed from the levels of ecological change traditionally managed. The present review is not intended to dismiss the idea that omics will play a future role in large-scale environmental monitoring studies, but rather outlines the necessary actions for its inclusion in regulatory monitoring programs focused on assessing ecosystem health.
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Affiliation(s)
- Paulina A Bahamonde
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - April Feswick
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - Meghan A Isaacs
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - Kelly R Munkittrick
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - Christopher J Martyniuk
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
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16
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Maryoung LA, Lavado R, Bammler TK, Gallagher EP, Stapleton PL, Beyer RP, Farin FM, Hardiman G, Schlenk D. Differential Gene Expression in Liver, Gill, and Olfactory Rosettes of Coho Salmon (Oncorhynchus kisutch) After Acclimation to Salinity. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:703-17. [PMID: 26260986 PMCID: PMC4636457 DOI: 10.1007/s10126-015-9649-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 05/15/2015] [Indexed: 05/28/2023]
Abstract
Most Pacific salmonids undergo smoltification and transition from freshwater to saltwater, making various adjustments in metabolism, catabolism, osmotic, and ion regulation. The molecular mechanisms underlying this transition are largely unknown. In the present study, we acclimated coho salmon (Oncorhynchus kisutch) to four different salinities and assessed gene expression through microarray analysis of gills, liver, and olfactory rosettes. Gills are involved in osmotic regulation, liver plays a role in energetics, and olfactory rosettes are involved in behavior. Between all salinity treatments, liver had the highest number of differentially expressed genes at 1616, gills had 1074, and olfactory rosettes had 924, using a 1.5-fold cutoff and a false discovery rate of 0.5. Higher responsiveness of liver to metabolic changes after salinity acclimation to provide energy for other osmoregulatory tissues such as the gills may explain the differences in number of differentially expressed genes. Differentially expressed genes were tissue- and salinity-dependent. There were no known genes differentially expressed that were common to all salinity treatments and all tissues. Gene ontology term analysis revealed biological processes, molecular functions, and cellular components that were significantly affected by salinity, a majority of which were tissue-dependent. For liver, oxygen binding and transport terms were highlighted. For gills, muscle, and cytoskeleton-related terms predominated and for olfactory rosettes, immune response-related genes were accentuated. Interaction networks were examined in combination with GO terms and determined similarities between tissues for potential osmosensors, signal transduction cascades, and transcription factors.
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Affiliation(s)
- Lindley A Maryoung
- Department of Environmental Sciences, University of California, 2258 Geology Building, 900 University Ave, Riverside, CA, 92521, USA.
| | - Ramon Lavado
- Department of Environmental Sciences, University of California, 2258 Geology Building, 900 University Ave, Riverside, CA, 92521, USA
| | - Theo K Bammler
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Evan P Gallagher
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Patricia L Stapleton
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Richard P Beyer
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Federico M Farin
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Gary Hardiman
- Department of Medicine and Public Health and Center for Genomics Medicine, Medical University of South Carolina, 135 Cannon Street, Suite 303 MSC 835, Charleston, SC, 29425, USA
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, 2258 Geology Building, 900 University Ave, Riverside, CA, 92521, USA
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Madden JC, Rogiers V, Vinken M. Application of in silico and in vitro methods in the development of adverse outcome pathway constructs in wildlife. Philos Trans R Soc Lond B Biol Sci 2015; 369:rstb.2013.0584. [PMID: 25405971 DOI: 10.1098/rstb.2013.0584] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
There is a long history of using both in silico and in vitro methods to predict adverse effects in humans and environmental species where toxicity data are lacking. Currently, there is a great deal of interest in applying these methods to the development of so-called 'adverse outcome pathway' (AOP) constructs. The AOP approach provides a framework for organizing information at the chemical and biological level, allowing evidence from both in silico and in vitro studies to be rationally combined to fill gaps in knowledge concerning toxicological events. Fundamental to this new paradigm is a greater understanding of the mechanisms of toxicity and, in particular, where these mechanisms may be conserved across taxa, such as between model animals and related wild species. This presents an opportunity to make predictions across diverse species, where empirical data are unlikely to become available as is the case for most species of wildlife.
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Affiliation(s)
- Judith C Madden
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom St., Liverpool L3 3AF, UK
| | - Vera Rogiers
- Department of Toxicology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium
| | - Mathieu Vinken
- Department of Toxicology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium
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18
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Kiyama R, Wada-Kiyama Y. Estrogenic endocrine disruptors: Molecular mechanisms of action. ENVIRONMENT INTERNATIONAL 2015; 83:11-40. [PMID: 26073844 DOI: 10.1016/j.envint.2015.05.012] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 05/26/2015] [Accepted: 05/27/2015] [Indexed: 05/20/2023]
Abstract
A comprehensive summary of more than 450 estrogenic chemicals including estrogenic endocrine disruptors is provided here to understand the complex and profound impact of estrogen action. First, estrogenic chemicals are categorized by structure as well as their applications, usage and effects. Second, estrogenic signaling is examined by the molecular mechanism based on the receptors, signaling pathways, crosstalk/bypassing and autocrine/paracrine/homeostatic networks involved in the signaling. Third, evaluation of estrogen action is discussed by focusing on the technologies and protocols of the assays for assessing estrogenicity. Understanding the molecular mechanisms of estrogen action is important to assess the action of endocrine disruptors and will be used for risk management based on pathway-based toxicity testing.
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Affiliation(s)
- Ryoiti Kiyama
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | - Yuko Wada-Kiyama
- Department of Physiology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8602, Japan
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McElroy AE, Hice LA, Frisk MG, Purcell SL, Phillips NC, Fast MD. Spatial patterns in markers of contaminant exposure, glucose and glycogen metabolism, and immunological response in juvenile winter flounder (Pseudoplueronectes americanus). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2015; 14:53-65. [PMID: 25946204 DOI: 10.1016/j.cbd.2015.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 01/16/2015] [Accepted: 01/26/2015] [Indexed: 12/13/2022]
Abstract
Inshore winter flounder (Pseudoplueronectes americanus) populations in NY, USA have reached record low numbers in recent years, and recruitment into the fishery appears to be limited by survival of post-settlement juvenile fish. In order to identify cellular pathways associated with site-specific variation in condition and mortality, we examined differential mRNA expression in juvenile winter flounder collected from six different bays across a gradient in human population density and sewage inputs. Illumina sequencing of pooled samples of flounder from contrasting degraded sites and less impacted sites was used to guide our choice of targets for qPCR analysis. 253 transcripts of >100bp were differentially expressed, with 60% showing strong homology to mostly teleost sequences within the NCBI database. Based on these data, transcripts representing nine genes of interest associated with contaminant exposure, immune response and glucose and glycogen metabolism were examined by qPCR in individual flounder from each site. Statistically significant site-specific differences were observed in expression of all but one gene, although patterns in expression were complex with only one (vitellogenin), demonstrating a west to east gradient consistent with known loadings of municipal sewage effluent. Principal components analysis (PCA) identified relationships among the genes evaluated. Our data indicate that juvenile winter flounder are responding to estrogenic chemicals in more urbanized coastal bays, and suggests potential mechanistic links between immune response, contaminant exposure and energy metabolism.
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Affiliation(s)
- A E McElroy
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, USA.
| | - L A Hice
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, USA
| | - M G Frisk
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, USA
| | - S L Purcell
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, Canada
| | - N C Phillips
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, Canada
| | - M D Fast
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, USA; Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, Canada
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20
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Porreca I, D'Angelo F, Gentilcore D, Carchia E, Amoresano A, Affuso A, Ceccarelli M, De Luca P, Esposito L, Guadagno FM, Mallardo M, Nardone A, Maccarone S, Pane F, Scarfò M, Sordino P, De Felice M, Ambrosino C. Cross-species toxicogenomic analyses and phenotypic anchoring in response to groundwater low-level pollution. BMC Genomics 2014; 15:1067. [PMID: 25475078 PMCID: PMC4301944 DOI: 10.1186/1471-2164-15-1067] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 11/24/2014] [Indexed: 01/02/2023] Open
Abstract
Background Comparison of toxicogenomic data facilitates the identification of deregulated gene patterns and maximizes health risk prediction in human. Results Here, we performed phenotypic anchoring on the effects of acute exposure to low-grade polluted groundwater using mouse and zebrafish. Also, we evaluated two windows of chronic exposure in mouse, starting in utero and at the end of lactation. Bioinformatic analysis of livers microarray data showed that the number of deregulated biofunctions and pathways is higher after acute exposure, compared to the chronic one. It also revealed specific profiles of altered gene expression in all treatments, pointing to stress response/mitochondrial pathways as major players of environmental toxicity. Of note, dysfunction of steroid hormones was also predicted by bioinformatic analysis and verified in both models by traditional approaches, serum estrogens measurement and vitellogenin mRNA determination in mice and zebrafish, respectively. Conclusions In our report, phenotypic anchoring in two vertebrate model organisms highlights the toxicity of low-grade pollution, with varying susceptibility based on exposure window. The overlay of zebrafish and mice deregulated pathways, more than single genes, is useful in risk identification from chemicals implicated in the observed effects. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-1067) contains supplementary material, which is available to authorized users.
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Baker ME, Sprague LJ, Ribecco C, Ruggeri B, Lekmine N, Ludka C, Wick I, Soverchia L, Ubaldi M, Šášik R, Schlenk D, Kelley KM, Reyes JA, Hardiman G. Application of a targeted endocrine q-PCR panel to monitor the effects of pollution in southern California flatfish. ACTA ACUST UNITED AC 2014. [DOI: 10.4161/23273739.2014.969598] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Baker ME, Hardiman G. Transcriptional analysis of endocrine disruption using zebrafish and massively parallel sequencing. J Mol Endocrinol 2014; 52:R241-56. [PMID: 24850832 PMCID: PMC4145605 DOI: 10.1530/jme-13-0219] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Endocrine-disrupting chemicals (EDCs), including plasticizers, pesticides, detergents, and pharmaceuticals, affect a variety of hormone-regulated physiological pathways in humans and wildlife. Many EDCs are lipophilic molecules and bind to hydrophobic pockets in steroid receptors, such as the estrogen receptor and androgen receptor, which are important in vertebrate reproduction and development. Indeed, health effects attributed to EDCs include reproductive dysfunction (e.g. reduced fertility, reproductive tract abnormalities, and skewed male:female sex ratios in fish), early puberty, various cancers, and obesity. A major concern is the effects of exposure to low concentrations of endocrine disruptors in utero and post partum, which may increase the incidence of cancer and diabetes in adults. EDCs affect transcription of hundreds and even thousands of genes, which has created the need for new tools to monitor the global effects of EDCs. The emergence of massive parallel sequencing for investigating gene transcription provides a sensitive tool for monitoring the effects of EDCs on humans and other vertebrates, as well as elucidating the mechanism of action of EDCs. Zebrafish conserve many developmental pathways found in humans, which makes zebrafish a valuable model system for studying EDCs, especially on early organ development because their embryos are translucent. In this article, we review recent advances in massive parallel sequencing approaches with a focus on zebrafish. We make the case that zebrafish exposed to EDCs at different stages of development can provide important insights on EDC effects on human health.
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Affiliation(s)
- Michael E Baker
- Department of MedicineUniversity of California San Diego, 9500 Gilman Drive 0605, La Jolla, California 92093-0605, USACSRC and BIMRCSan Diego State University, 5500 Campanile Drive, San Diego, California 92182-7720, USADepartment of MedicineMedical University of South Carolina, 135 Cannon Street, Suite 303 MSC 835, Charleston, South Carolina 29425, USA
| | - Gary Hardiman
- Department of MedicineUniversity of California San Diego, 9500 Gilman Drive 0605, La Jolla, California 92093-0605, USACSRC and BIMRCSan Diego State University, 5500 Campanile Drive, San Diego, California 92182-7720, USADepartment of MedicineMedical University of South Carolina, 135 Cannon Street, Suite 303 MSC 835, Charleston, South Carolina 29425, USADepartment of MedicineUniversity of California San Diego, 9500 Gilman Drive 0605, La Jolla, California 92093-0605, USACSRC and BIMRCSan Diego State University, 5500 Campanile Drive, San Diego, California 92182-7720, USADepartment of MedicineMedical University of South Carolina, 135 Cannon Street, Suite 303 MSC 835, Charleston, South Carolina 29425, USA
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Vidal-Dorsch DE, Bay SM, Greenstein DJ, Baker ME, Hardiman G, Reyes JA, Kelley KM, Schlenk D. Biological responses of marine flatfish exposed to municipal wastewater effluent. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2014; 33:583-591. [PMID: 24273037 DOI: 10.1002/etc.2466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 08/02/2013] [Accepted: 11/13/2013] [Indexed: 06/02/2023]
Abstract
There is increasing concern over the presence of pharmaceutical compounds, personal care products, and other chemicals collectively known as contaminants of emerging concern (CECs) in municipal effluents, yet knowledge of potential environmental impacts related to these compounds is still limited. The present study used laboratory exposures to examine estrogenic, androgenic, and thyroid-related endocrine responses in marine hornyhead turbot (Pleuronichthys verticalis) exposed to CECs from municipal effluents with 2 degrees of treatment. Fish were exposed for 14 d to environmentally realistic concentrations of effluent (0.5%) and to a higher concentration (5%) to investigate dose responses. Plasma concentrations of estradiol (E2), vitellogenin (VTG), 11-keto testosterone, and thyroxine were measured to assess endocrine responses. Contaminants of emerging concern were analyzed to characterize the effluents. Diverse types of effluent CECs were detected. Statistically significant responses were not observed in fish exposed to environmentally realistic concentrations of effluent. Elevated plasma E2 concentrations were observed in males exposed to ammonia concentrations similar to those found in effluents. However, exposure to ammonia did not induce VTG production in male fish. The results of the present study highlight the importance of conducting research with sentinel organisms in laboratory studies to understand the environmental significance of the presence of CECs in aquatic systems.
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