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Guillotin S, Delcourt N. Studying the Impact of Persistent Organic Pollutants Exposure on Human Health by Proteomic Analysis: A Systematic Review. Int J Mol Sci 2022; 23:ijms232214271. [PMID: 36430748 PMCID: PMC9692675 DOI: 10.3390/ijms232214271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
Persistent organic pollutants (POPs) are organic chemical substances that are widely distributed in environments around the globe. POPs accumulate in living organisms and are found at high concentrations in the food chain. Humans are thus continuously exposed to these chemical substances, in which they exert hepatic, reproductive, developmental, behavioral, neurologic, endocrine, cardiovascular, and immunologic adverse health effects. However, considerable information is unknown regarding the mechanism by which POPs exert their adverse effects in humans, as well as the molecular and cellular responses involved. Data are notably lacking concerning the consequences of acute and chronic POP exposure on changes in gene expression, protein profile, and metabolic pathways. We conducted a systematic review to provide a synthesis of knowledge of POPs arising from proteomics-based research. The data source used for this review was PubMed. This study was carried out following the PRISMA guidelines. Of the 742 items originally identified, 89 were considered in the review. This review presents a comprehensive overview of the most recent research and available solutions to explore proteomics datasets to identify new features relevant to human health. Future perspectives in proteomics studies are discussed.
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Affiliation(s)
- Sophie Guillotin
- Poison Control Centre, Toulouse University Hospital, 31059 Toulouse, France
- INSERM UMR 1295, Centre d’Epidémiologie et de Recherche en Santé des Populations, 31000 Toulouse, France
| | - Nicolas Delcourt
- Poison Control Centre, Toulouse University Hospital, 31059 Toulouse, France
- INSERM UMR 1214, Toulouse NeuroImaging Center, 31024 Toulouse, France
- Correspondence: ; Tel.: +33-(0)-567691640
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Pinson A, Sevrin E, Chatzi C, Le Gac B, Thiry M, Westbrook GL, Parent AS. Induction of Oxidative Stress and Alteration of Synaptic Gene Expression in Newborn Hippocampal Granule Cells after Developmental Exposure to Aroclor 1254. Neuroendocrinology 2022; 113:1248-1261. [PMID: 36257292 PMCID: PMC10110769 DOI: 10.1159/000527576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/10/2022] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Hippocampal newborn neurons integrate into functional circuits where they play an important role in learning and memory. We previously showed that perinatal exposure to Aroclor 1254, a commercial mixture of polychlorinated biphenyls (PCBs) associated with alterations of cognitive function in children, disrupted the normal maturation of excitatory synapses in the dentate gyrus. We hypothesized that hippocampal immature neurons underlie some of the cognitive effects of PCBs. METHODS We used newly generated neurons to examine the effects of PCBs in mice following maternal exposure. Newborn dentate granule cells were tagged with enhanced green fluorescent protein using a transgenic mouse line. The transcriptome of the newly generated granule cells was assessed using RNA sequencing. RESULTS Gestational and lactational exposure to 6 mg/kg/day of Aroclor 1254 disrupted the mRNA expression of 1,308 genes in newborn granule cells. Genes involved in mitochondrial functions were highly enriched with 154 genes significantly increased in exposed compared to control mice. The upregulation of genes involved in oxidative phosphorylation was accompanied by signs of endoplasmic reticulum stress and an increase in lipid peroxidation, a marker of oxidative stress, in the subgranular zone of the dentate gyrus but not in mature granule cells in the granular zone. Aroclor 1254 exposure also disrupted the expression of synaptic genes. Using laser-captured subgranular and granular zones, this effect was restricted to the subgranular zone, where newborn neurons are located. CONCLUSION Our data suggest that gene expression in newborn granule cells is disrupted by Aroclor 1254 and provide clues to the effects of endocrine-disrupting chemicals on the brain.
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Affiliation(s)
- Anneline Pinson
- Neuroendocrinology Unit, GIGA-Neurosciences, University of Liège, Liège, Belgium
| | - Elena Sevrin
- Neuroendocrinology Unit, GIGA-Neurosciences, University of Liège, Liège, Belgium
| | - Christina Chatzi
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA
| | - Benjamin Le Gac
- Neuroendocrinology Unit, GIGA-Neurosciences, University of Liège, Liège, Belgium
| | - Marc Thiry
- Cellular and tissular biology, GIGA-Neurosciences, University of Liège, Liège, Belgium
| | - Gary L Westbrook
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA
| | - Anne-Simone Parent
- Neuroendocrinology Unit, GIGA-Neurosciences, University of Liège, Liège, Belgium
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Dahiya B, Mehta PK. Detection of potential biomarkers associated with outrageous diseases and environmental pollutants by nanoparticle-based immuno-PCR assays. Anal Biochem 2019; 587:113444. [PMID: 31545948 DOI: 10.1016/j.ab.2019.113444] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/18/2019] [Accepted: 09/18/2019] [Indexed: 12/20/2022]
Abstract
Immuno-polymerase chain reaction (I-PCR) assay with advantages of both enzyme-linked immunosorbent assay (ELISA) and PCR exhibits several-fold enhanced sensitivity in comparison to respective ELISA, which has wide applications for ultralow detection of several molecules, i.e. cytokines, protooncogenes and biomarkers associated with several diseases. Conjugation of reporter DNA to the detection antibodies is the most crucial step of I-PCR assay that usually employs streptavidin-protein A, streptavidin-biotin conjugate or succinimidyl-4-(N-maleimidomethyl) cyclohexane-1-carboxylate (SMCC) system by a covalent binding. However, coupling of antibodies and oligonucleotides to nanoparticles (NPs) is relatively easier in the NP-based I-PCR (NP-I-PCR) that also displays better accuracy. This article is mainly focused on the detection of important biomarkers associated with several outrageous infectious and non-infectious diseases by NP-I-PCR assays, which would expedite an early initiation of therapy thus human health would be improved. Similarly, ultralow detection of environmental pollutants by these assays and their elimination would certainly improve human health.
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Affiliation(s)
- Bhawna Dahiya
- Centre for Biotechnology, Maharshi Dayanand University (MDU), Rohtak, 124001, Haryana, India
| | - Promod K Mehta
- Centre for Biotechnology, Maharshi Dayanand University (MDU), Rohtak, 124001, Haryana, India.
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Murugan K, Vasudevan N. Intracellular toxicity exerted by PCBs and role of VBNC bacterial strains in biodegradation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 157:40-60. [PMID: 29605643 DOI: 10.1016/j.ecoenv.2018.03.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/22/2018] [Accepted: 03/06/2018] [Indexed: 06/08/2023]
Abstract
Polychlorinated biphenyls (PCBs) are xenobiotic compounds that persists in the environment for long-term, though its productivity is banned. Abatement of the pollutants have become laborious due to it's recalcitrant nature in the environment leading to toxic effects in humans and other living beings. Biphenyl degrading bacteria co-metabolically degrade low chlorinated PCBs using the active metabolic pathway. bph operon possess different genetic arrangements in gram positive and gram negative bacteria. The binding ability of the genes and the active sites were determined by PCB docking studies. The active site of bphA gene with conserved amino acid residues determines the substrate specificity and biodegradability. Accumulation of toxic intermediates alters cellular behaviour, biomass production and downturn the metabolic activity. Several bacteria in the environment attain unculturable state which is viable and metabolically active but not cultivable (VBNC). Resuscitation-promoting factor (Rpf) and Rpf homologous protein retrieve the culturability of the so far uncultured bacteria. Recovery of this adaptive mechanism against various physical and chemical stressors make a headway in understanding the functionality of both environmental and medically important unculturable bacteria. Thus, this paper review about the general aspects of PCBs, cellular toxicity exerted by PCBs, role of unculturable bacterial strains in biodegradation, genes involved and degradation pathways. It is suggested to extrapolate the research findings on extracellular organic matters produced in culture supernatant of VBNC thus transforming VBNC to culturable state.
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Affiliation(s)
- Karuvelan Murugan
- Centre for Environmental Studies, Anna University, CEG Campus, Chennai, Tamil Nadu, India.
| | - Namasivayam Vasudevan
- Centre for Environmental Studies, Anna University, CEG Campus, Chennai, Tamil Nadu, India.
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Pinson A, Franssen D, Gérard A, Parent AS, Bourguignon JP. Neuroendocrine disruption without direct endocrine mode of action: Polychloro-biphenyls (PCBs) and bisphenol A (BPA) as case studies. C R Biol 2017; 340:432-438. [PMID: 28826787 DOI: 10.1016/j.crvi.2017.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 07/21/2017] [Indexed: 11/26/2022]
Abstract
Endocrine disruption is commonly thought to be restricted to a direct endocrine mode of action i.e. the perturbation of the activation of a given type of hormonal receptor by its natural ligand. Consistent with the WHO definition of an endocrine disrupter, a key issue is the "altered function(s) of the endocrine system". Such altered functions can result from different chemical interactions, beyond agonistic or antagonistic effect at a given receptor. Based on neuroendocrine disruption by polychlorinated biphenyls and bisphenol A, this paper proposes different mechanistic paradigms that can result in adverse health effects. They are a consequence of altered endocrine function(s) secondary to chemical interaction with different steps in the physiological regulatory processes, thus accounting for a possibly indirect endocrine mode of action.
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Affiliation(s)
- Anneline Pinson
- Developmental Neuroendocrinology unit, GIGA Neurosciences, University of Liège, Quartier Hôpital, Tour 4, 1(er) étage, avenue Hippocrate 15, 4000 Liège, Belgium
| | - Delphine Franssen
- Developmental Neuroendocrinology unit, GIGA Neurosciences, University of Liège, Quartier Hôpital, Tour 4, 1(er) étage, avenue Hippocrate 15, 4000 Liège, Belgium
| | - Arlette Gérard
- Developmental Neuroendocrinology unit, GIGA Neurosciences, University of Liège, Quartier Hôpital, Tour 4, 1(er) étage, avenue Hippocrate 15, 4000 Liège, Belgium
| | - Anne-Simone Parent
- Developmental Neuroendocrinology unit, GIGA Neurosciences, University of Liège, Quartier Hôpital, Tour 4, 1(er) étage, avenue Hippocrate 15, 4000 Liège, Belgium
| | - Jean-Pierre Bourguignon
- Developmental Neuroendocrinology unit, GIGA Neurosciences, University of Liège, Quartier Hôpital, Tour 4, 1(er) étage, avenue Hippocrate 15, 4000 Liège, Belgium.
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Mucio-Ramírez S, Sánchez-Islas E, Sánchez-Jaramillo E, Currás-Collazo M, Juárez-González VR, Álvarez-González MY, Orser LE, Hou B, Pellicer F, Kodavanti PRS, León-Olea M. Perinatal exposure to organohalogen pollutants decreases vasopressin content and its mRNA expression in magnocellular neuroendocrine cells activated by osmotic stress in adult rats. Toxicol Appl Pharmacol 2017; 329:173-189. [PMID: 28579251 PMCID: PMC5996972 DOI: 10.1016/j.taap.2017.05.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 05/29/2017] [Accepted: 05/31/2017] [Indexed: 11/17/2022]
Abstract
Polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) are environmental pollutants that produce neurotoxicity and neuroendocrine disruption. They affect the vasopressinergic system but their disruptive mechanisms are not well understood. Our group reported that rats perinatally exposed to Aroclor-1254 (A1254) and DE-71 (commercial mixtures of PCBs and PBDEs) decrease somatodendritic vasopressin (AVP) release while increasing plasma AVP responses to osmotic activation, potentially emptying AVP reserves required for body-water balance. The aim of this research was to evaluate the effects of perinatal exposure to A1254 or DE-71 (30mgkg/day) on AVP transcription and protein content in the paraventricular and supraoptic hypothalamic nuclei, of male and female rats, by in situ hybridization and immunohistochemistry. cFOS mRNA expression was evaluated in order to determine neuroendocrine cells activation due to osmotic stimulation. Animal groups were: vehicle (control); exposed to either A1254 or DE-71; both, control and exposed, subjected to osmotic challenge. The results confirmed a physiological increase in AVP-immunoreactivity (AVP-IR) and gene expression in response to osmotic challenge as reported elsewhere. In contrast, the exposed groups did not show this response to osmotic activation, they showed significant reduction in AVP-IR neurons, and AVP mRNA expression as compared to the hyperosmotic controls. cFOS mRNA expression increased in A1254 dehydrated groups, suggesting that the AVP-IR decrease was not due to a lack of the response to the osmotic activation. Therefore, A1254 may interfere with the activation of AVP mRNA transcript levels and protein, causing a central dysfunction of vasopressinergic system.
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Affiliation(s)
- Samuel Mucio-Ramírez
- Departamento de Neuromorfología Funcional, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Calz. México Xochimilco No. 101, Col. San Lorenzo Huipulco, México D.F. C.P. 14370, México.
| | - Eduardo Sánchez-Islas
- Departamento de Neuromorfología Funcional, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Calz. México Xochimilco No. 101, Col. San Lorenzo Huipulco, México D.F. C.P. 14370, México.
| | - Edith Sánchez-Jaramillo
- Laboratorio de Neuroendocrinología Molecular, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Calz. México Xochimilco No. 101, Col. San Lorenzo Huipulco. México D.F. C.P. 14370, México.
| | - Margarita Currás-Collazo
- Department of Cell Biology and Neuroscience, University of California, Riverside, CA 92521, USA.
| | - Victor R Juárez-González
- Medicina Molecular y Bioprocesos, Instituto de Biotecnología, UNAM, Av. Universidad #2001, Col. Chamilpa, C.P. 62210 Cuernavaca, Morelos, México.
| | - Mhar Y Álvarez-González
- Departamento de Neuromorfología Funcional, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Calz. México Xochimilco No. 101, Col. San Lorenzo Huipulco, México D.F. C.P. 14370, México.
| | - L E Orser
- Department of Cell Biology and Neuroscience, University of California, Riverside, CA 92521, USA
| | - Borin Hou
- Department of Cell Biology and Neuroscience, University of California, Riverside, CA 92521, USA
| | - Francisco Pellicer
- Laboratorio de Fisiología Integrativa, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz. Calz. México Xochimilco No. 101, Col. San Lorenzo Huipulco, México D.F. C.P. 14370, México.
| | - Prasada Rao S Kodavanti
- Neurotoxicology Branch, Toxicity Assessment Division, NHEERL/ORD, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA.
| | - Martha León-Olea
- Departamento de Neuromorfología Funcional, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Calz. México Xochimilco No. 101, Col. San Lorenzo Huipulco, México D.F. C.P. 14370, México.
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Brown TM, Hammond SA, Behsaz B, Veldhoen N, Birol I, Helbing CC. De novo assembly of the ringed seal (Pusa hispida) blubber transcriptome: A tool that enables identification of molecular health indicators associated with PCB exposure. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 185:48-57. [PMID: 28187360 DOI: 10.1016/j.aquatox.2017.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
The ringed seal, Pusa hispida, is a keystone species in the Arctic marine ecosystem, and is proving a useful marine mammal for linking polychlorinated biphenyl (PCB) exposure to toxic injury. We report here the first de novo assembled transcriptome for the ringed seal (342,863 transcripts, of which 53% were annotated), which we then applied to a population of ringed seals exposed to a local PCB source in Arctic Labrador, Canada. We found an indication of energy metabolism imbalance in local ringed seals (n=4), and identified five significant gene transcript targets: plasminogen receptor (Plg-R(KT)), solute carrier family 25 member 43 receptor (Slc25a43), ankyrin repeat domain-containing protein 26-like receptor (Ankrd26), HIS30 (not yet annotated) and HIS16 (not yet annotated) that may represent indicators of PCB exposure and effects in marine mammals. The abundance profiles of these five gene targets were validated in blubber samples collected from 43 ringed seals using a qPCR assay. The mRNA transcript levels for all five gene targets, (Plg-R(KT), r2=0.43), (Slc25a43, r2=0.51), (Ankrd26, r2=0.43), (HIS30, r2=0.39) and (HIS16, r2=0.31) correlated with increasing levels of blubber PCBs. Results from the present study contribute to our understanding of PCB associated effects in marine mammals, and provide new tools for future molecular and toxicology work in pinnipeds.
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Affiliation(s)
- Tanya M Brown
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada; Memorial University, St. John's, Newfoundland A1B 3X9, Canada
| | - S Austin Hammond
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada; Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC V5Z 4S6, Canada
| | - Bahar Behsaz
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC V5Z 4S6, Canada
| | - Nik Veldhoen
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - Inanç Birol
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC V5Z 4S6, Canada
| | - Caren C Helbing
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada.
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Suman S, Mishra S, Shukla Y. Toxicoproteomics in human health and disease: an update. Expert Rev Proteomics 2016; 13:1073-1089. [DOI: 10.1080/14789450.2016.1252676] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shankar Suman
- Proteomics and Environmental Carcinogenesis Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Lucknow, India
| | - Sanjay Mishra
- Proteomics and Environmental Carcinogenesis Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Lucknow, India
| | - Yogeshwer Shukla
- Proteomics and Environmental Carcinogenesis Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Lucknow, India
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Ounnas F, Privé F, Lamarche F, Salen P, Favier-Hininger I, Marchand P, Le Bizec B, Venisseau A, Batandier C, Fontaine E, de Lorgeril M, Demeilliers C. A relevant exposure to a food matrix contaminated environmentally by polychlorinated biphenyls induces liver and brain disruption in rats. CHEMOSPHERE 2016; 161:80-88. [PMID: 27421104 DOI: 10.1016/j.chemosphere.2016.06.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/02/2016] [Accepted: 06/09/2016] [Indexed: 06/06/2023]
Abstract
Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants present in dietary fats. Most studies evaluating PCB effects have been conducted with a single compound or a mixture of PCBs given as a single acute dose. The purpose of this study was to evaluate in vivo PCB toxicity in a realistic model of exposure: a low daily dose of PCBs (twice the tolerable daily intake (TDI)), chronically administered (8 weeks) to rats in contaminated goat milk. Liver and brain PCB toxicities were investigated by evaluating oxidative stress status and mitochondrial function. PCB toxicity in the liver was also estimated by transaminase enzymatic activity. This study shows that even at low doses, chronic PCB exposure resulted in a statistically significant reduction of mitochondrial function in liver and brain. In the liver, oxygen consumption in the condition of adenosine triphosphate (ATP) production (state 3) decreased by 22-29% (p < 0.01), according to the respiratory substrates. In the brain, respiratory chain complexes II and III were reduced by 24% and 39%, respectively (p < 0.005). The exposed rats presented higher lipid peroxidation status (+20%, p < 0.05) and transaminase activity (+30%, p < 0.05) in the blood. Thus, our study showed that exposure of rats to a daily realistic dose of PCBs (twice the TDI in a food complex mixture of environmental origin) resulted in multiple disruptions in the liver and brain.
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Affiliation(s)
- Fayçal Ounnas
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France; TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Florence Privé
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France; TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Fréderic Lamarche
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
| | - Patricia Salen
- TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Isabelle Favier-Hininger
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
| | - Philippe Marchand
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments, LUNAM Université, Oniris, USC 1329, Route de Gachet, CS 50707, 44307 Nantes Cedex 3, France.
| | - Bruno Le Bizec
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments, LUNAM Université, Oniris, USC 1329, Route de Gachet, CS 50707, 44307 Nantes Cedex 3, France.
| | - Anais Venisseau
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments, LUNAM Université, Oniris, USC 1329, Route de Gachet, CS 50707, 44307 Nantes Cedex 3, France.
| | - Cécile Batandier
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
| | - Eric Fontaine
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France; Grenoble University Hospital, CS 10217, 38043 Grenoble Cedex 9, France.
| | - Michel de Lorgeril
- TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Christine Demeilliers
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
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Lahouel A, Kebieche M, Lakroun Z, Rouabhi R, Fetoui H, Chtourou Y, Djamila Z, Soulimani R. Neurobehavioral deficits and brain oxidative stress induced by chronic low dose exposure of persistent organic pollutants mixture in adult female rat. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:19030-19040. [PMID: 27240828 DOI: 10.1007/s11356-016-6913-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/17/2016] [Indexed: 06/05/2023]
Abstract
Persistent organic pollutants (POPs) are long-lived organic compounds that are considered one of the major risks to ecosystem and human health. Recently, great concerns are raised about POPs mixtures and its potential toxicity even in low doses of daily human exposure. The brain is mostly targeted by these lipophilic compounds because of its important contain in lipids. So, it would be quite interesting to study the effects of exposure to these mixtures and evaluate their combined toxicity on brain cells. The present study was designed to characterize the cognitive and locomotors deficits and brain areas redox status in rat model. An orally chronic exposure to a representative mixture of POPs composed of endosulfan (2.6 μg/kg), chlorpyrifos (5.2 μg/kg), naphthalene (0.023 μg/kg) and benzopyrane (0.002 μg/kg); the same mixture with concentration multiplied by 10 and 100 was also tested. Exposed rats have shown a disturbance of memory and a decrease in learning ability concluded by Morris water maze and the open field tests results and anxiolytic behaviour in the test of light/dark box compared to control. Concerning brain redox homeostasis, exposed rats have shown an increased malondialdehyde (MDA) amount and an alteration in glutathione (GSH) levels in both the brain mitochondria and cytosolic fractions of the cerebellum, striatum and hippocampus. These effects were accompanied by a decrease in levels of cytosolic glutathione S-transferase (GST) and a highly significant increase in superoxide dismutase (SOD) and catalase (CAT) activities in both cytosolic and mitochondrial fractions. The current study suggests that environmental exposure to daily even low doses of POPs mixtures through diet induces oxidative stress status in the brain and especially in the mitochondria with important cognitive and locomotor behaviour variations in the rats.
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Affiliation(s)
- Asma Lahouel
- Laboratory of Cellular and Molecular Biology, University of Jijel, Jijel, Algeria
| | - Mohamed Kebieche
- Laboratory of Cellular and Molecular Biology, University of Jijel, Jijel, Algeria.
- Laboratory of Food Neurotoxicology and Bioactivity, University of Metz, Metz, France.
| | - Zohra Lakroun
- Laboratory of Cellular and Molecular Biology, University of Jijel, Jijel, Algeria
| | - Rachid Rouabhi
- Faculty of SESNV, Applied Biology Department, University of Tebessa, Tebessa, Algeria
| | - Hamadi Fetoui
- Toxicology-Microbiology and Environmental Health Unit (UR11ES70), University of Sfax, Sfax, Tunisia
| | - Yassine Chtourou
- Toxicology-Microbiology and Environmental Health Unit (UR11ES70), University of Sfax, Sfax, Tunisia
| | - Zama Djamila
- Department of Animal Biology, University of Mentouri 1, Constantine, Algeria
| | - Rachid Soulimani
- Laboratory of Food Neurotoxicology and Bioactivity, University of Metz, Metz, France
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11
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Pinson A, Bourguignon JP, Parent AS. Exposure to endocrine disrupting chemicals and neurodevelopmental alterations. Andrology 2016; 4:706-22. [PMID: 27285165 DOI: 10.1111/andr.12211] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 03/25/2016] [Accepted: 04/05/2016] [Indexed: 01/24/2023]
Abstract
The developing brain is remarkably malleable as neural circuits are formed and these circuits are strongly dependent on hormones for their development. For those reasons, the brain is very vulnerable to the effects of endocrine-disrupting chemicals (EDCs) during critical periods of development. This review focuses on three ubiquitous endocrine disruptors that are known to disrupt the thyroid function and are associated with neurobehavioral deficits: polychlorinated biphenyls, polybrominated diphenyl ethers, and bisphenol A. The human and rodent data suggesting effects of those EDCs on memory, cognition, and social behavior are discussed. Their mechanisms of action go beyond relative hypothyroidism with effects on neurotransmitter release and calcium signaling.
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Affiliation(s)
- A Pinson
- Neuroendocrinology Unit, GIGA Neurosciences, University of Liege, Liège, Belgium
| | - J P Bourguignon
- Neuroendocrinology Unit, GIGA Neurosciences, University of Liege, Liège, Belgium
| | - A S Parent
- Neuroendocrinology Unit, GIGA Neurosciences, University of Liege, Liège, Belgium
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12
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Choi SY, Lee K, Park Y, Lee SH, Jo SH, Chung S, Kim KT. Non-Dioxin-Like Polychlorinated Biphenyls Inhibit G-Protein Coupled Receptor-Mediated Ca2+ Signaling by Blocking Store-Operated Ca2+ Entry. PLoS One 2016; 11:e0150921. [PMID: 26963511 PMCID: PMC4786281 DOI: 10.1371/journal.pone.0150921] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 02/22/2016] [Indexed: 12/12/2022] Open
Abstract
Polychlorinated biphenyls (PCBs) are ubiquitous pollutants which accumulate in the food chain. Recently, several molecular mechanisms by which non-dioxin-like (NDL) PCBs mediate neurodevelopmental and neurobehavioral toxicity have been elucidated. However, although the G-protein coupled receptor (GPCR) is a significant target for neurobehavioral disturbance, our understanding of the effects of PCBs on GPCR signaling remains unclear. In this study, we investigated the effects of NDL-PCBs on GPCR-mediated Ca2+ signaling in PC12 cells. We found that ortho-substituted 2,2’,6-trichlorinated biphenyl (PCB19) caused a rapid decline in the Ca2+ signaling of bradykinin, a typical Gq- and phospholipase Cβ-coupled GPCR, without any effect on its inositol 1,4,5-trisphosphate production. PCB19 reduced thapsigargin-induced sustained cytosolic Ca2+ levels, suggesting that PCB19 inhibits SOCE. The abilities of other NDL-PCBs to inhibit store-operated Ca2+ entry (SOCE) were also examined and found to be of similar potencies to that of PCB19. PCB19 also showed a manner equivalent to that of known SOCE inhibitors. PCB19-mediated SOCE inhibition was confirmed by demonstrating the ability of PCB19 to inhibit the SOCE current and thapsigargin-induced Mn2+ influx. These results imply that one of the molecular mechanism by which NDL-PCBs cause neurobehavioral disturbances involves NDL-PCB-mediated inhibition of SOCE, thereby interfering with GPCR-mediated Ca2+ signaling.
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Affiliation(s)
- Se-Young Choi
- Department of Physiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
- Department of Life Sciences, Division of Integrative Bioscience and Biotechnology, Pohang University of Science and Technology, Pohang, Korea
| | - Keimin Lee
- Department of Physiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | - Yurim Park
- Department of Physiology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Seung-Hyun Lee
- Department of Physiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | - Su-Hyun Jo
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Sungkwon Chung
- Department of Physiology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Kyong-Tai Kim
- Department of Life Sciences, Division of Integrative Bioscience and Biotechnology, Pohang University of Science and Technology, Pohang, Korea
- * E-mail:
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13
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Gonzalez ST, Remick D, Creton R, Colwill RM. Effects of embryonic exposure to polychlorinated biphenyls (PCBs) on anxiety-related behaviors in larval zebrafish. Neurotoxicology 2015; 53:93-101. [PMID: 26748073 DOI: 10.1016/j.neuro.2015.12.018] [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] [Received: 09/13/2015] [Revised: 12/28/2015] [Accepted: 12/28/2015] [Indexed: 12/14/2022]
Abstract
The zebrafish (Danio rerio) is an excellent model system for assessing the effects of toxicant exposure on behavior and neurodevelopment. In the present study, we examined the effects of sub-chronic embryonic exposure to polychlorinated biphenyls (PCBs), a ubiquitous anthropogenic pollutant, on anxiety-related behaviors. We found that exposure to the PCB mixture, Aroclor (A) 1254, from 2 to 26h post-fertilization (hpf) induced two statistically significant behavioral defects in larvae at 7 days post-fertilization (dpf). First, during 135min of free swimming, larvae that had been exposed to 2ppm, 5ppm or 10ppm A1254 exhibited enhanced thigmotaxis (edge preference) relative to control larvae. Second, during the immediately ensuing 15-min visual startle assay, the 5ppm and 10ppm PCB-exposed larvae reacted differently to a visual threat, a red 'bouncing' disk, relative to control larvae. These results are consistent with the anxiogenic and attention-disrupting effects of PCB exposure documented in children, monkeys and rodents and merit further investigation.
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Affiliation(s)
- Sarah T Gonzalez
- Department of Cognitive, Linguistic & Psychological Sciences, Brown University, Providence, Rhode Island, United States
| | - Dylan Remick
- Department of Cognitive, Linguistic & Psychological Sciences, Brown University, Providence, Rhode Island, United States
| | - Robbert Creton
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island, United States
| | - Ruth M Colwill
- Department of Cognitive, Linguistic & Psychological Sciences, Brown University, Providence, Rhode Island, United States.
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14
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Lovato AK, Creton R, Colwill RM. Effects of embryonic exposure to polychlorinated biphenyls (PCBs) on larval zebrafish behavior. Neurotoxicol Teratol 2015; 53:1-10. [PMID: 26561944 DOI: 10.1016/j.ntt.2015.11.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 11/08/2015] [Accepted: 11/09/2015] [Indexed: 01/26/2023]
Abstract
Developmental disorders such as anxiety, autism, and attention deficit hyperactivity disorders have been linked to exposure to polychlorinated biphenyls (PCBs), a ubiquitous anthropogenic pollutant. The zebrafish is widely recognized as an excellent model system for assessing the effects of toxicant exposure on behavior and neurodevelopment. In the present study, we examined the effect of sub-chronic embryonic exposure to the PCB mixture, Aroclor (A) 1254 on anxiety-related behaviors in zebrafish larvae at 7 days post-fertilization (dpf). We found that exposure to low concentrations of A1254, from 2 to 26 h post-fertilization (hpf) induced specific behavioral defects in two assays. In one assay with intermittent presentations of a moving visual stimulus, 5 ppm and 10 ppm PCB-exposed larvae displayed decreased avoidance behavior but no significant differences in thigmotaxis or freezing relative to controls. In the other assay with intermittent presentations of a moving visual stimulus and a stationary visual stimulus, 5 ppm and 10 ppm PCB-exposed larvae had elevated baseline levels of thigmotaxis but no significant differences in avoidance behavior relative to controls. The 5 ppm larvae also displayed higher terminal levels of freezing relative to controls. Collectively, our results show that exposure to ecologically valid PCB concentrations during embryonic development can induce functional deficits and alter behavioral responses to a visual threat.
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Affiliation(s)
- Ava K Lovato
- Department of Cognitive, Linguistic & Psychological Sciences, Brown University, Providence, Rhode Island, United States
| | - Robbert Creton
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island, United States
| | - Ruth M Colwill
- Department of Cognitive, Linguistic & Psychological Sciences, Brown University, Providence, Rhode Island, United States.
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15
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Zahara ARD, Michel NL, Flahr LM, Ejack LE, Morrissey CA. Latent cognitive effects from low-level polychlorinated biphenyl exposure in juvenile European starlings (Sturnus vulgaris). ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:2513-2522. [PMID: 26033510 DOI: 10.1002/etc.3084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 04/15/2015] [Accepted: 05/21/2015] [Indexed: 06/04/2023]
Abstract
Ecotoxicology research on polychlorinated biphenyl (PCB) mixtures has focused principally on short-term effects on reproduction, growth, and other physiological endpoints. Latent cognitive effects from early life exposure to low-level PCBs were examined in an avian model, the European starling (Sturnus vulgaris). Thirty-six birds, divided equally among 4 treatment groups (control = 0 µg, low = 0.35 µg, intermediate = 0.70 µg, and high = 1.05 µg Aroclor 1254/g body weight), were dosed 1 d through 18 d posthatch, then tested 8 mo to 9 mo later in captivity in an analog to an open radial arm maze. Birds were subject to 4 sequential experiments: habituation, learning, cue selection, and memory. One-half of the birds did not habituate to the test cage; however, this was not linked to a treatment group. Although 11 of the remaining 18 birds successfully learned, only 1 was from the high-dosed group. Control and low-dosed birds were among the only treatment groups to improve trial times throughout the learning experiment. High-dosed birds were slower and more error-prone than controls. Cue selection (spatial or color cues) and memory retention were not affected by prior PCB exposure. The results indicate that a reduction in spatial learning ability persists among birds exposed to Aroclor 1254 during development. This may have implications for migration ability, resource acquisition, and other behaviors relevant for fitness.
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Affiliation(s)
- Alexander R D Zahara
- Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Nicole L Michel
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Leanne M Flahr
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Leanne E Ejack
- Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Christy A Morrissey
- Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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16
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Cocco S, Secondo A, Del Viscovo A, Procaccini C, Formisano L, Franco C, Esposito A, Scorziello A, Matarese G, Di Renzo G, Canzoniero LMT. Polychlorinated Biphenyls Induce Mitochondrial Dysfunction in SH-SY5Y Neuroblastoma Cells. PLoS One 2015; 10:e0129481. [PMID: 26101884 PMCID: PMC4477897 DOI: 10.1371/journal.pone.0129481] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 05/09/2015] [Indexed: 12/02/2022] Open
Abstract
Chronic exposure to polychlorinated biphenyls (PCBs), ubiquitous environmental contaminants, can adversely affect the development and function of the nervous system. Here we evaluated the effect of PCB exposure on mitochondrial function using the PCB mixture Aroclor-1254 (A1254) in SH-SY5Y neuroblastoma cells. A 6-hour exposure to A1254 (5 μg/ml) reduced cellular ATP production by 45%±7, and mitochondrial membrane potential, detected by TMRE, by 49%±7. Consistently, A1254 significantly decreased oxidative phosphorylation and aerobic glycolysis measured by extracellular flux analyzer. Furthermore, the activity of mitochondrial protein complexes I, II, and IV, but not V (ATPase), measured by BN-PAGE technique, was significantly reduced after 6-hour exposure to A1254. The addition of pyruvic acid during exposure to A1254 significantly prevent A1254-induced cell injury, restoring resting mitochondrial membrane potential, ATP levels, oxidative phosphorylation and aerobic glycolysis. Furthermore, pyruvic acid significantly preserved the activity of mitochondrial complexes I, II and IV and increased basal activity of complex V. Collectively, the present results indicate that the neurotoxicity of A1254 depends on the impairment of oxidative phosphorylation, aerobic glycolysis, and mitochondrial complexes I, II, and IV activity and it was counteracted by pyruvic acid.
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Affiliation(s)
- Stefania Cocco
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Agnese Secondo
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Adelaide Del Viscovo
- Dept. of Science and Technology-DST, University of Sannio, via Port'Arsa 11, 82100 Benevento, Italy
| | - Claudio Procaccini
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II", Napoli, Italy
| | - Luigi Formisano
- Dept. of Science and Technology-DST, University of Sannio, via Port'Arsa 11, 82100 Benevento, Italy
| | - Cristina Franco
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Alba Esposito
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Antonella Scorziello
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Giuseppe Matarese
- Dipartimento di Medicina e Chirurgia, Università di Salerno, Baronissi Campus, Baronissi, Salerno, Italy; IRCCS MultiMedica, Milano, Italy
| | - Gianfranco Di Renzo
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
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17
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Kodavanti PRS, Royland JE, Osorio C, Winnik WM, Ortiz P, Lei L, Ramabhadran R, Alzate O. Developmental exposure to a commercial PBDE mixture: effects on protein networks in the cerebellum and hippocampus of rats. ENVIRONMENTAL HEALTH PERSPECTIVES 2015; 123:428-36. [PMID: 25616259 PMCID: PMC4421769 DOI: 10.1289/ehp.1408504] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 12/17/2014] [Indexed: 05/03/2023]
Abstract
BACKGROUND Polybrominated diphenyl ethers (PBDEs) are structurally similar to polychlorinated biphenyls (PCBs) and have both central (learning and memory deficits) and peripheral (motor dysfunction) neurotoxic effects at concentrations/doses similar to those of PCBs. The cellular and molecular mechanisms for these neurotoxic effects are not fully understood; however, several studies have shown that PBDEs affect thyroid hormones, cause oxidative stress, and disrupt Ca2+-mediated signal transduction. Changes in these signal transduction pathways can lead to differential gene regulation with subsequent changes in protein expression, which can affect the development and function of the nervous system. OBJECTIVE In this study, we examined the protein expression profiles in the rat cerebellum and hippocampus following developmental exposure to a commercial PBDE mixture, DE-71. METHODS Pregnant Long-Evans rats were dosed perinatally with 0 or 30.6 mg/kg/day of DE-71 from gestation day 6 through sampling on postnatal day 14. Proteins from the cerebellum and hippocampus were extracted, expression differences were detected by two-dimensional difference gel electrophoresis, and proteins were identified by tandem mass spectrometry. Protein network interaction analysis was performed using Ingenuity® Pathway Analysis, and the proteins of interest were validated by Western blotting. RESULTS Four proteins were significantly differentially expressed in the cerebellum following DE-71 exposure, whereas 70 proteins were significantly differentially expressed in the hippocampus. Of these proteins, 4 from the cerebellum and 47 from the hippocampus, identifiable by mass spectrometry, were found to have roles in mitochondrial energy metabolism, oxidative stress, apoptosis, calcium signaling, and growth of the nervous system. CONCLUSIONS Results suggest that changes in energy metabolism and processes related to neuroplasticity and growth may be involved in the developmental neurotoxicity of PBDEs.
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Affiliation(s)
- Prasada Rao S Kodavanti
- Neurotoxicology Branch, and 2Genetic and Cellular Toxicology Branch, Office of Research and Development (ORD), U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
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18
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Elnar AA, Desor F, Marin F, Soulimani R, Nemos C. Lactational exposure to low levels of the six indicator non-dioxin-like polychlorinated biphenyls induces DNA damage and repression of neuronal activity, in juvenile male mice. Toxicology 2014; 328:57-65. [PMID: 25510870 DOI: 10.1016/j.tox.2014.12.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/09/2014] [Accepted: 12/10/2014] [Indexed: 10/24/2022]
Abstract
Previously, we evaluated the effects of lactational exposure to a representative mixture of the six indicator non-dioxin-like polychlorinated biphenyls (∑6 NDL-PCBs) at low levels on the neurobiological changes and developmental/behavioral performances in mice. In this study, we analyzed the global gene expression profile in cerebellar neurons isolated from male mice presenting the most significant induction of anxiety-like behavior in our previous study (10 ng/kg ∑6 NDL-PCBs). Our results revealed changes in the expression of 16658 genes in the neurons of the exposed mice. Among these, 693 upregulated [fold change (FC)>2; p<0.05] and 665 downregulated (FC<2; p<0.05) genes were statistically linked to gene ontology terms (GO). Overexpressed genes belonged to GO terms involved with the cell cycle, DNA replication, cell cycle checkpoint, response to DNA damage stimulus, regulation of RNA biosynthetic processes, and microtubule cytoskeleton organization. Downregulated genes belonged to terms involved with the transmission of nerve impulses, projection neurons, synapse hands, cell junctions, and regulation of RNA biosynthetic processes. Using qPCR, we quantified gene expression related to DNA damage and validated the transcriptomic study, as a significant overexpression of Atm-Atr Bard1, Brca2, Fancd2, Figf, Mycn, p53 and Rad51 was observed between groups (p<0.001). Finally, using immunoblots we determined the expression level of six selected proteins. We found that changes in the protein expression of Atm Brca1, p53, Kcnma1, Npy4r and Scn1a was significant between exposed and control groups (p<0.05), indicating that the expression pattern of these proteins agreed with the expression pattern of their genes by qPCR, further validating our transcriptomic findings. In conclusion, our study showed that early life exposure of male mice to a low level of ∑6 NDL-PCBs induced p53-dependent responses to cellular stress and a decrease in the expression of proteins involved in the generation, conduction, and transmission of electrical signals in neurons.
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Affiliation(s)
- Arpiné Ardzivian Elnar
- Université de Lorraine, Neurotoxicologie Alimentaire et Bioactivité, MRCA/UR AFPA/INRA, BP 4102, 57040 Metz, France.
| | - Frédéric Desor
- Université de Lorraine, Neurotoxicologie Alimentaire et Bioactivité, MRCA/UR AFPA/INRA, BP 4102, 57040 Metz, France
| | - Fabian Marin
- Université de Lorraine, UMR INSERM-954 Nutrition - Génétique et exposition aux risques environnementaux, Faculté de médecine de Nancy, 54511 Vandœuvre-Lès-Nancy, France
| | - Rachid Soulimani
- Université de Lorraine, Neurotoxicologie Alimentaire et Bioactivité, MRCA/UR AFPA/INRA, BP 4102, 57040 Metz, France
| | - Christophe Nemos
- Université de Lorraine, UMR INSERM-954 Nutrition - Génétique et exposition aux risques environnementaux, Faculté de médecine de Nancy, 54511 Vandœuvre-Lès-Nancy, France; CHU de Nancy, Unité de foetoplacentologie, Maternité régionale Universitaire, 54000 Nancy, France
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19
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Rabilloud T, Lescuyer P. Proteomics in mechanistic toxicology: History, concepts, achievements, caveats, and potential. Proteomics 2014; 15:1051-74. [DOI: 10.1002/pmic.201400288] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 07/25/2014] [Accepted: 08/25/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Thierry Rabilloud
- Laboratory of Chemistry and Biology of Metals; CNRS UMR; 5249 Grenoble France
- Laboratory of Chemistry and Biology of Metals; Université Grenoble Alpes; Grenoble France
- Laboratory of Chemistry and Biology of Metals; CEA Grenoble; iRTSV/CBM; Grenoble France
| | - Pierre Lescuyer
- Department of Human Protein Sciences; Clinical Proteomics and Chemistry Group; Geneva University; Geneva Switzerland
- Toxicology and Therapeutic Drug Monitoring Laboratory; Department of Genetic and Laboratory Medicine; Geneva University Hospitals; Geneva Switzerland
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20
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Oikawa S, Kobayashi H, Kitamura Y, Zhu H, Obata K, Minabe Y, Dazortsava M, Ohashi K, Tada-Oikawa S, Takahashi H, Yata K, Murata M, Yamashima T. Proteomic analysis of carbonylated proteins in the monkey substantia nigra after ischemia-reperfusion. Free Radic Res 2014; 48:694-705. [DOI: 10.3109/10715762.2014.901509] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Shinji Oikawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine,
Mie, Japan
| | - Hatasu Kobayashi
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine,
Mie, Japan
| | - Yuki Kitamura
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine,
Mie, Japan
| | - Hong Zhu
- Departments of Restorative Neurosurgery and Psychiatry, Kanazawa University Graduate School of Medical Science,
Kanazawa, Japan
| | - Kumi Obata
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine,
Mie, Japan
| | - Yoshio Minabe
- Departments of Restorative Neurosurgery and Psychiatry, Kanazawa University Graduate School of Medical Science,
Kanazawa, Japan
| | - Maryia Dazortsava
- Departments of Restorative Neurosurgery and Psychiatry, Kanazawa University Graduate School of Medical Science,
Kanazawa, Japan
| | - Kyoko Ohashi
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine,
Mie, Japan
| | - Saeko Tada-Oikawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine,
Mie, Japan
| | - Hitoshi Takahashi
- Department of Pathology, Brain Research Institute, University of Niigata,
Niigata, Japan
| | - Kenichiro Yata
- Department of Neurology, Mie University Graduate School of Medicine,
Mie, Japan
| | - Mariko Murata
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine,
Mie, Japan
| | - Tetsumori Yamashima
- Departments of Restorative Neurosurgery and Psychiatry, Kanazawa University Graduate School of Medical Science,
Kanazawa, Japan
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21
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Rigaud C, Couillard CM, Pellerin J, Légaré B, Hodson PV. Applicability of the TCDD-TEQ approach to predict sublethal embryotoxicity in Fundulus heteroclitus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 149:133-144. [PMID: 24607689 DOI: 10.1016/j.aquatox.2014.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/02/2014] [Accepted: 02/05/2014] [Indexed: 06/03/2023]
Abstract
The 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) toxic equivalent quantity (TCDD-TEQ) approach was used successfully to predict lethal embryotoxicity in salmonids, but its applicability to sublethal effects of mixtures of organohalogenated compounds in other fish species is poorly known. The sublethal toxicity of two dioxin-like compounds (DLCs), 3,3',4,4'-tetrachlorobiphenyl (PCB77) and 2,3,4,7,8-pentachlorodibenzofuran (2,3,4,7,8-PnCDF), two non-dioxin-like (NDL) polychlorinated biphenyls (PCBs), 2,2',5,5'-tetrachlorobiphenyl (PCB52) and 2,3,3',4',6-pentachlorobiphenyl (PCB110), and of Aroclor 1254, a complex commercial mixture of PCBs, was assessed in Fundulus heteroclitus embryos exposed by intravitelline injection. At 16 days post-fertilization, the two DLCs and Aroclor 1254 altered prey capture ability in addition to inducing classical aryl hydrocarbon receptor-mediated responses: ethoxyresorufin-O-deethylase (EROD) induction, craniofacial deformities and reduction in body length. None of these responses was induced by the two NDL PCBs, at doses up to 5400 ng g(-1)wet weight. Dose-response curves for prey capture ability for the 2 DLCs tested were not parallel to that of TCDD, violating a fundamental assumption for relative potency (ReP) estimation. Dose-response curves for EROD induction were parallel for 2,3,4,7,8-PnCDF and TCDD, but the ReP of 2,3,4,7,8-PnCDF for F. heteroclitus was 5-fold higher than the World Health Organization (WHO) fish toxic equivalent factor (TEF) based on embryolethality in salmonids. The chemically derived TCDD-TEQs of Aroclor 1254, calculated using 3,3',4,4',5-pentachlorobiphenyl (PCB126) concentrations and it ReP for F. heteroclitus, overestimated its potency to induce EROD activity possibly due to antagonistic interactions among PCBs. This study highlights the limitations of using TEFs based on salmonid toxicity data alone for risk assessment to other fish species. There is a need to assess the variability of RePs of DLCs in different species for a variety of endpoints and to better understand interactions between DLCs and other toxic chemicals.
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Affiliation(s)
- Cyril Rigaud
- Institut des Sciences de la Mer, Université du Québec à Rimouski, 310 Allée des Ursulines, Rimouski, Québec G5L 3A1, Canada; Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, Mont-Joli, Québec G5H 3Z4, Canada.
| | - Catherine M Couillard
- Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, Mont-Joli, Québec G5H 3Z4, Canada.
| | - Jocelyne Pellerin
- Institut des Sciences de la Mer, Université du Québec à Rimouski, 310 Allée des Ursulines, Rimouski, Québec G5L 3A1, Canada
| | - Benoît Légaré
- Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, Mont-Joli, Québec G5H 3Z4, Canada
| | - Peter V Hodson
- Queen's University, 99 University Avenue, Kingston, Ontario K7L 3N6, Canada
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Yang GX, Zhuang HS, Chen HY, Ping XY, Bu D. A sensitive immunosorbent bio-barcode assay based on real-time immuno-PCR for detecting 3,4,3',4'-tetrachlorobiphenyl. Anal Bioanal Chem 2014; 406:1693-700. [DOI: 10.1007/s00216-013-7583-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/21/2013] [Accepted: 12/14/2013] [Indexed: 11/25/2022]
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23
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Miller I, Serchi T, Murk AJ, Gutleb AC. The added value of proteomics for toxicological studies. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2014; 17:225-246. [PMID: 24828453 DOI: 10.1080/10937404.2014.904730] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Proteomics has the potential to elucidate complex patterns of toxic action attributed to its unique holistic a posteriori approach. In the case of toxic compounds for which the mechanism of action is not completely understood, a proteomic approach may provide valuable mechanistic insight. This review provides an overview of currently available proteomic techniques, including examples of their application in toxicological in vivo and in vitro studies. Future perspectives for a wider application of state-of-the-art proteomic techniques in the field of toxicology are discussed. The examples concern experiments with dioxins, polychlorinated biphenyls, and polybrominated diphenyl ethers as model compounds, as they exhibit a plethora of sublethal effects, of which some mechanisms were revealed via successful proteomic studies. Generally, this review shows the added value of including proteomics in a modern tool box for toxicological studies.
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Affiliation(s)
- I Miller
- a Institute for Medical Biochemistry, Department for Biomedical Sciences , University of Veterinary Medicine Vienna , Vienna , Austria
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Murugaiyan J, Rockstroh M, Wagner J, Baumann S, Schorsch K, Trump S, Lehmann I, Bergen MV, Tomm JM. Benzo[a]pyrene affects Jurkat T cells in the activated state via the antioxidant response element dependent Nrf2 pathway leading to decreased IL-2 secretion and redirecting glutamine metabolism. Toxicol Appl Pharmacol 2013; 269:307-16. [DOI: 10.1016/j.taap.2013.03.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Revised: 03/20/2013] [Accepted: 03/25/2013] [Indexed: 02/01/2023]
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25
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Li X, Ye L, Wang X, Wang X, Liu H, Qian X, Zhu Y, Yu H. Molecular docking, molecular dynamics simulation, and structure-based 3D-QSAR studies on estrogenic activity of hydroxylated polychlorinated biphenyls. THE SCIENCE OF THE TOTAL ENVIRONMENT 2012; 441:230-238. [PMID: 23137989 DOI: 10.1016/j.scitotenv.2012.08.072] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 08/21/2012] [Accepted: 08/24/2012] [Indexed: 06/01/2023]
Abstract
Hydroxylated polychlorinated biphenyls (HO-PCBs), major metabolites of PCBs, have been reported to present agonist or antagonist interactions with estrogen receptor α (ERα) and induce ER-mediated responses. In this work, a multistep framework combining molecular docking, molecular dynamics (MD) simulations, and structure-based three-dimensional quantitative structure-activity relationship (3D-QSAR) studies were performed to explore the influence of structural features on the estrogenic activities of HO-PCBs, and to investigate the molecular mechanism of ERα-ligand interactions. The CoMSIA (comparative molecular similarity indices analysis) model was developed from the conformations obtained from molecular docking. The model exhibited statistically significant results as the cross-validated correlation coefficient q² was 0.648, the non-cross-validated correlation coefficient r² was 0.968, and the external predictive correlation coefficient r(pred)² was 0.625. The key amino acid residues were identified by molecular docking, and the detailed binding modes of the compounds with different activities were determined by MD simulations. The binding free energies correlated well with the experimental activity. An energetic analysis, MM-GBSA energy decomposition, revealed that the van der Waals interaction was the major driving force for the binding of compounds to ERα. The hydrogen bond interactions between the ligands and residue His524 help to stabilize the conformation of ligands at the binding pocket. These results are expected to be beneficial to predict estrogenic activities of other HO-PCB congeners and helpful for understanding the binding mechanism of HO-PCBs and ERα.
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Affiliation(s)
- Xiaolin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
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26
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Zhang J, Yan L, Tian M, Huang Q, Peng S, Dong S, Shen H. The metabonomics of combined dietary exposure to phthalates and polychlorinated biphenyls in mice. J Pharm Biomed Anal 2012; 66:287-97. [PMID: 22502909 DOI: 10.1016/j.jpba.2012.03.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Revised: 03/22/2012] [Accepted: 03/23/2012] [Indexed: 12/11/2022]
Abstract
Humans undergo simultaneous daily exposure to a multitude of endocrine-disrupting compounds (EDCs). In present study, after combined exposure to endocrine disruptors DEHP and Aroclor 1254 for 12 days, a liquid chromatography/time-of-flight mass spectrometer method combining both reversed-phase (RP) and hydrophilic interaction chromatography (HILIC) separations was carried out to investigate the metabolic responses in mice. The metabolic profiles of endogenous metabolites could differentiate the dose and control groups in both RPLC and HILIC modes. Moreover, the male mice and female mice in different groups could be obviously clustered in their own regions with combined model. Fourteen lysoPCs, PC(18:4/18:1), lysoPE(18:2/0:0), phenylalanine and tryptophan were identified as potential biomarkers for the combined toxicity of DEHP and Aroclor 1254. Different change trends could be observed for the identified lysoPCs, due to their different levels of uptake and metabolism in mice. Moreover, gender-specific differences in several lysoPCs (e.g. lysoPC(18:0), lysoPC(22:6), lysoPC(20:3), and PC(18:4/18:1)) were observed for treated mice. The metabonomic results indicated the combined exposure led to a disturbance of lipid metabolism. The mRNA expressions of PLA2, ACOX1, CPT1, FAS and SCD1 involved in lipid metabolism were investigated. Among them, significant increases of FAS and SCD1 expressions in the liver induced by the exposure could be observed for both male and female mice, contributing to the hepatic lipid accumulation in mice. Besides lipid metabolism, tryptophan metabolism and phenylalanine metabolism may also be involved with the toxic responses to these EDCs. The present study not only improves the understanding of the combined toxicity of phthalates and PCBs but also shows that the metabonomic approach may prove to be a promising technique for the toxicity research of EDCs.
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Affiliation(s)
- Jie Zhang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
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27
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Brunelli L, Llansola M, Felipo V, Campagna R, Airoldi L, De Paola M, Fanelli R, Mariani A, Mazzoletti M, Pastorelli R. Insight into the neuroproteomics effects of the food-contaminant non-dioxin like polychlorinated biphenyls. J Proteomics 2012; 75:2417-30. [PMID: 22387315 DOI: 10.1016/j.jprot.2012.02.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 02/14/2012] [Accepted: 02/16/2012] [Indexed: 01/20/2023]
Abstract
Recent studies showed that food-contaminant non-dioxin-like polychlorinated biphenyls (NDL-PCBs) congeners (PCB52, PCB138, PCB180) have neurotoxic potential, but the cellular and molecular mechanisms underlying neuronal damage are not entirely known. The aim of this study was to assess whether in-vitro exposure to NDL-PCBs may alter the proteome profile of primary cerebellar neurons in order to expand our knowledge on NDL-PCBs neurotoxicity. Comparison of proteome from unexposed and exposed rat cerebellar neurons was performed using state-of-the-art label-free semi-quantitative mass-spectrometry method. We observed significant changes in the abundance of several proteins, that fall into two main classes: (i) novel targets for both PCB138 and 180, mediating the dysregulation of CREB pathways and ubiquitin-proteasome system; (ii) different congeners-specific targets (alpha-actinin-1 for PCB138; microtubule-associated-protein-2 for PCB180) that might lead to similar deleterious consequences on neurons cytoskeleton organization. Interference of the PCB congeners with synaptic formation was supported by the increased expression of pre- and post-synaptic proteins quantified by western blot and immunocytochemistry. Expression alteration of synaptic markers was confirmed in the cerebellum of rats developmentally exposed to these congeners, suggesting an adaptive response to neurodevelopmental toxicity on brain structures. As such, our work is expected to lead to new insights into the mechanisms of NDL-PCBs neurotoxicity.
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Affiliation(s)
- Laura Brunelli
- Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
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Hilgier W, Łazarewicz JW, Strużynska L, Frontczak-Baniewicz M, Albrecht J. Repeated exposure of adult rats to Aroclor 1254 induces neuronal injury and impairs the neurochemical manifestations of the NMDA receptor-mediated intracellular signaling in the hippocampus. Neurotoxicology 2011; 33:16-22. [PMID: 22044768 DOI: 10.1016/j.neuro.2011.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 10/17/2011] [Accepted: 10/17/2011] [Indexed: 11/30/2022]
Abstract
Aroclor 1254 is a mixture of polychlorinated biphenyls (PCBs), a class of environmental toxins which cause a wide spectrum of neurotoxic effects. Learning and memory deficits are the profound effects of PCBs which may be related to hippocampal dysfunction. To get insight into the underlying neurochemical mechanisms, we employed the microdialysis technique to investigate the effect of repeated exposure of adult male Wistar rats to Aroclor 1254 (10mg/kg b.w., daily, ig., for 14days), on the neurochemical parameters of NMDA receptor-mediated glutamatergic signaling in the hippocampus in vivo assessed using the microdialysis technique. The results demonstrated that exposure to Aroclor 1254, which was associated with substantial neuronal damage and loss in the hippocampus, markedly decreased the NMDA-induced extracellular accumulation of newly loaded (45)CaCl(2), cGMP and glutamate, and reduced the basal content of the NO precursor, arginine, indicating inhibition of the NMDA/NO/cGMP pathway. Aroclor 1254 exposure also decreased the basal microdialysate content of glutamate and glutamine, which may cause inadequate supply of the neurotransmitter glutamate, while the level of two other neuroactive amino acids, aspartate or taurine was not affected by the exposure. The results underscore neuronal lesion and inhibition of NMDA receptor-mediated glutamatergic signaling in hippocampus as a potential major contributor to the cognitive deficits associated with exposure to PCB.
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Affiliation(s)
- Wojciech Hilgier
- Department of Neurotoxicology, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawinskiego 5, 02-106 Warsaw, Poland
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