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Cattane N, Vernon AC, Borsini A, Scassellati C, Endres D, Capuron L, Tamouza R, Benros ME, Leza JC, Pariante CM, Riva MA, Cattaneo A. Preclinical animal models of mental illnesses to translate findings from the bench to the bedside: Molecular brain mechanisms and peripheral biomarkers associated to early life stress or immune challenges. Eur Neuropsychopharmacol 2022; 58:55-79. [PMID: 35235897 DOI: 10.1016/j.euroneuro.2022.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 02/07/2023]
Abstract
Animal models are useful preclinical tools for studying the pathogenesis of mental disorders and the effectiveness of their treatment. While it is not possible to mimic all symptoms occurring in humans, it is however possible to investigate the behavioral, physiological and neuroanatomical alterations relevant for these complex disorders in controlled conditions and in genetically homogeneous populations. Stressful and infection-related exposures represent the most employed environmental risk factors able to trigger or to unmask a psychopathological phenotype in animals. Indeed, when occurring during sensitive periods of brain maturation, including pre, postnatal life and adolescence, they can affect the offspring's neurodevelopmental trajectories, increasing the risk for mental disorders. Not all stressed or immune challenged animals, however, develop behavioral alterations and preclinical animal models can explain differences between vulnerable or resilient phenotypes. Our review focuses on different paradigms of stress (prenatal stress, maternal separation, social isolation and social defeat stress) and immune challenges (immune activation in pregnancy) and investigates the subsequent alterations in several biological and behavioral domains at different time points of animals' life. It also discusses the "double-hit" hypothesis where an initial early adverse event can prime the response to a second negative challenge. Interestingly, stress and infections early in life induce the activation of the hypothalamic-pituitary-adrenal (HPA) axis, alter the levels of neurotransmitters, neurotrophins and pro-inflammatory cytokines and affect the functions of microglia and oxidative stress. In conclusion, animal models allow shedding light on the pathophysiology of human mental illnesses and discovering novel molecular drug targets for personalized treatments.
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Affiliation(s)
- Nadia Cattane
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Anthony C Vernon
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, United Kingdom
| | - Alessandra Borsini
- Stress, Psychiatry and Immunology Laboratory, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, United Kingdom
| | - Catia Scassellati
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Dominique Endres
- Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lucile Capuron
- Univ. Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, F-33000, Bordeaux, France
| | - Ryad Tamouza
- Département Medico-Universitaire de Psychiatrie et d'Addictologie (DMU ADAPT), Laboratoire Neuro-psychiatrie translationnelle, AP-HP, UniversitéParis Est Créteil, INSERM U955, IMRB, Hôpital Henri Mondor, Fondation FondaMental, F-94010 Créteil, France
| | - Michael Eriksen Benros
- Biological and Precision Psychiatry, Copenhagen Research Centre for Mental Health, Copenhagen University Hospital, Gentofte Hospitalsvej 15, 4th floor, 2900 Hellerup, Denmark; Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Juan C Leza
- Department of Pharmacology & Toxicology, Faculty of Medicine, Universidad Complutense de Madrid (UCM), Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Investigación Hospital 12 de Octubre (i+12), IUIN-UCM. Spain
| | - Carmine M Pariante
- Stress, Psychiatry and Immunology Laboratory, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, United Kingdom
| | - Marco A Riva
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy; Department of Pharmacological and Biomolecular Sciences, University of Milan, Italy
| | - Annamaria Cattaneo
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy; Department of Pharmacological and Biomolecular Sciences, University of Milan, Italy.
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Laham BJ, Gould E. How Stress Influences the Dynamic Plasticity of the Brain’s Extracellular Matrix. Front Cell Neurosci 2022; 15:814287. [PMID: 35145379 PMCID: PMC8821883 DOI: 10.3389/fncel.2021.814287] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 12/27/2021] [Indexed: 12/14/2022] Open
Abstract
Diffuse and structured extracellular matrix (ECM) comprise ∼20% of the brain’s volume and play important roles in development and adult plasticity. Perineuronal nets (PNNs), specialized ECM structures that surround certain types of neurons in the brain, emerge during the postnatal period, making their development and maintenance potentially sensitive to experience. Recent studies have shown that stress affects diffuse ECM as well as PNNs, and that such effects are dependent on life stage and brain region. Given that the ECM participates in synaptic plasticity, the generation of neuronal oscillations, and synchronous firing across brain regions, all of which have been linked to cognition and emotional regulation, ECM components may be candidate therapeutic targets for stress-induced neuropsychiatric disease. This review considers the influence of stress over diffuse and structured ECM during postnatal life with a focus on functional outcomes and the potential for translational relevance.
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Timmerman BM, Mooney-Leber SM, Brummelte S. The effects of neonatal procedural pain and maternal isolation on hippocampal cell proliferation and reelin concentration in neonatal and adult male and female rats. Dev Psychobiol 2021; 63:e22212. [PMID: 34813104 DOI: 10.1002/dev.22212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 10/04/2021] [Accepted: 10/13/2021] [Indexed: 11/11/2022]
Abstract
Preterm births accounted for over 10% of all U.S. live births in 2019 and the rate is rising. Neonatal stressors, especially procedural pain, experienced by preterm infants in the neonatal intensive care unit (NICU) have been associated with neurodevelopmental impairments. Parental care can alleviate stress during stressful or painful procedures; however, infants in the NICU often receive reduced parental care compared with their peers. Animal studies suggest that decreased maternal care similarly impairs neurodevelopment but also influences the effects of neonatal pain. It is important to mimic both stressors in animal models of neonatal stress exposure. In this study, researchers investigated the individual and combined impact of neonatal pain and maternal isolation on reelin protein levels and cellular proliferation in the hippocampal dentate gyrus of 8 days old and adult rats. Exposure to either stressor individually, but not both, increased reelin levels in the dentate gyrus of adult females without significantly altering reelin levels in adult males. However, cell proliferation levels at either age were unaffected by the early-life stressors. These results suggest that each early-life stressor has a unique effect on markers of brain development and more research is needed to further investigate their distinct influences.
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Affiliation(s)
- Brian M Timmerman
- Department of Psychology, Wayne State University, Detroit, Michigan, USA
| | - Sean M Mooney-Leber
- Department of Psychology, University of Wisconsin-Stevens Points, Stevens Point, Wisconsin, USA
| | - Susanne Brummelte
- Department of Psychology, Wayne State University, Detroit, Michigan, USA.,Translational Neuroscience Program, Wayne State University, Detroit, Michigan, USA
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Aksic M, Poleksic J, Aleksic D, Petronijevic N, Radonjic NV, Jakovcevski M, Kapor S, Divac N, Filipovic BR, Jakovcevski I. Maternal Deprivation in Rats Decreases the Expression of Interneuron Markers in the Neocortex and Hippocampus. Front Neuroanat 2021; 15:670766. [PMID: 34168541 PMCID: PMC8217609 DOI: 10.3389/fnana.2021.670766] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/07/2021] [Indexed: 12/12/2022] Open
Abstract
Early life stress has profound effects on the development of the central nervous system. We exposed 9-day-old rat pups to a 24 h maternal deprivation (MD) and sacrificed them as young adults (60-day-old), with the aim to study the effects of early stress on forebrain circuitry. We estimated numbers of various immunohistochemically defined interneuron subpopulations in several neocortical regions and in the hippocampus. MD rats showed reduced numbers of parvalbumin-expressing interneurons in the CA1 region of the hippocampus and in the prefrontal cortex, compared with controls. Numbers of reelin-expressing and calretinin-expressing interneurons were also reduced in the CA1 and CA3 hippocampal areas, but unaltered in the neocortex of MD rats. The number of calbinin-expressing interneurons in the neocortex was similar in the MD rats compared with controls. We analyzed cell death in 15-day-old rats after MD and found no difference compared to control rats. Thus, our results more likely reflect the downregulation of markers than the actual loss of interneurons. To investigate synaptic activity in the hippocampus we immunostained for glutamatergic and inhibitory vesicular transporters. The number of inhibitory synapses was decreased in the CA1 and CA3 regions of the hippocampus in MD rats, with the normal number of excitatory synapses. Our results indicate complex, cell type-specific, and region-specific alterations in the inhibitory circuitry induced by maternal deprivation. Such alterations may underlie symptoms of MD at the behavioral level and possibly contribute to mechanisms by which early life stress causes neuropsychiatric disorders, such as schizophrenia.
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Affiliation(s)
- Milan Aksic
- Institute of Anatomy Niko Miljanić, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Joko Poleksic
- Institute of Anatomy Niko Miljanić, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dubravka Aleksic
- Institute of Anatomy Niko Miljanić, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Natasa Petronijevic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nevena V Radonjic
- Department of Psychiatry, University of Connecticut School of Medicine, Farmington, CT, United States
| | - Maja Jakovcevski
- Department of Anatomy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Slobodan Kapor
- Institute of Anatomy Niko Miljanić, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nevena Divac
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Branislav R Filipovic
- Institute of Anatomy Niko Miljanić, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Igor Jakovcevski
- Abteilung für Neuroanatomie und Molekulare Hirnforschung, Ruhr-Universität Bochum, Bochum, Germany.,Institut für Anatomie und Klinische Morphologie, Universität Witten/Herdecke, Witten, Germany
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Grigoruta M, Chavez-Solano M, Varela-Ramirez A, Sierra-Fonseca JA, Orozco-Lucero E, Hamdan JN, Gosselink KL, Martinez-Martinez A. Maternal separation induces retinal and peripheral blood mononuclear cell alterations across the lifespan of female rats. Brain Res 2020; 1749:147117. [PMID: 32971085 DOI: 10.1016/j.brainres.2020.147117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 08/21/2020] [Accepted: 09/04/2020] [Indexed: 12/24/2022]
Abstract
Early life stress alters the function and feedback regulation of the hypothalamic-pituitaryadrenal (HPA) axis, and can contribute to neuroinflammation and neurodegeneration by modifying peripheral blood mononuclear cell (PBMC) activity. The retina, as part of the nervous system, is sensitive to immune changes induced by stress. However, the consequences of stress experienced at an early age on retinal development have not yet been elucidated. Here we aimed to evaluate the impact of maternal separation (MatSep) across three stages of the lifespan (adolescent, adult, and aged) on the retina, as well as on progression through the cell cycle and mitochondrial activity in PBMCs from female Wistar rats. Newborn pups were separated from their mother from postnatal day (PND) 2 until PND 14 for 3 h/day. Retinal analysis from the MatSep groups showed architectural alterations such as a diminished thickness of retinal layers, as well as increased expression of proinflammatory markers DJ-1, Iba-1, and CD45 and the gliotic marker GFAP. Additionally, MatSep disrupted the cell cycle and caused long-term increases in mitochondrial activity in PBMCs from adolescent and adult rats. Changes in the cell cycle profile of the PBMCs from aged MatSep rats were undetected. However, these PBMCs exhibited increased sensitivity to H2O2-induced oxidative stress in vitro. Therefore, these results suggest that early life stress can have long-term effects on retinal structure and function, possibly elicited by neonatal immune preconditioning.
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Affiliation(s)
- Mariana Grigoruta
- Department of Chemical and Biological Sciences. Biomedical Sciences Institute. Autonomous University of Ciudad Juarez, Anillo envolvente Pronaf y Estocolmo S/N, Zona Pronaf, 32315 Ciudad Juárez, Chihuahua, Mexico; Department of Biological Sciences and Border Biomedical Research Center, The University of Texas at El Paso, 500 West University Avenue, 79968 El Paso, TX, USA
| | - Marbella Chavez-Solano
- Department of Chemical and Biological Sciences. Biomedical Sciences Institute. Autonomous University of Ciudad Juarez, Anillo envolvente Pronaf y Estocolmo S/N, Zona Pronaf, 32315 Ciudad Juárez, Chihuahua, Mexico; Department of Biological Sciences and Border Biomedical Research Center, The University of Texas at El Paso, 500 West University Avenue, 79968 El Paso, TX, USA.
| | - Armando Varela-Ramirez
- Department of Biological Sciences and Border Biomedical Research Center, The University of Texas at El Paso, 500 West University Avenue, 79968 El Paso, TX, USA
| | - Jorge A Sierra-Fonseca
- Department of Biological Sciences and Border Biomedical Research Center, The University of Texas at El Paso, 500 West University Avenue, 79968 El Paso, TX, USA
| | - Ernesto Orozco-Lucero
- Department of Veterinary Sciences. Biomedical Sciences Institute. Autonomous University of Ciudad Juarez, Anillo envolvente Pronaf y Estocolmo S/N, Zona Pronaf, 32315 Ciudad Juarez, Chihuahua, Mexico
| | - Jameel N Hamdan
- Department of Biological Sciences and Border Biomedical Research Center, The University of Texas at El Paso, 500 West University Avenue, 79968 El Paso, TX, USA
| | - Kristin L Gosselink
- Department of Biological Sciences and Border Biomedical Research Center, The University of Texas at El Paso, 500 West University Avenue, 79968 El Paso, TX, USA.
| | - Alejandro Martinez-Martinez
- Department of Chemical and Biological Sciences. Biomedical Sciences Institute. Autonomous University of Ciudad Juarez, Anillo envolvente Pronaf y Estocolmo S/N, Zona Pronaf, 32315 Ciudad Juárez, Chihuahua, Mexico
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Wang RH, Chen YF, Chen S, Hao B, Xue L, Wang XG, Shi YW, Zhao H. Maternal Deprivation Enhances Contextual Fear Memory via Epigenetically Programming Second-Hit Stress-Induced Reelin Expression in Adult Rats. Int J Neuropsychopharmacol 2018; 21:1037-1048. [PMID: 30169690 PMCID: PMC6209857 DOI: 10.1093/ijnp/pyy078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 08/29/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Early-life stress increases the risk for posttraumatic stress disorder. However, the epigenetic mechanism of early-life stress-induced susceptibility to posttraumatic stress disorder in adulthood remains unclear. METHODS Rat pups were exposed to maternal deprivation during postnatal days 1 to 14 for 3 hours daily and treated with the DNA methyltransferase inhibitor zebularine, L-methionine, or vehicle 7 days before contextual fear conditioning, which was used as a second stress and to mimic the reexperiencing symptom of posttraumatic stress disorder in adulthood. Long-term potentiation, dendritic spine density, DNA methyltransferase mRNA, Reelin gene methylation, and Reelin protein expression in the hippocampal CA1 were measured. RESULTS Maternal deprivation enhanced contextual fear memory in adulthood. Meanwhile, maternal deprivation decreased DNA methyltransferase mRNA and Reelin gene methylation in the hippocampal CA1 on postnatal days 22 and 90. Reelin protein expression was increased in the hippocampal CA1 following contextual fear conditioning in adulthood. Furthermore, compared with rats that experienced maternal deprivation alone, rats also exposed to contextual fear conditioning showed an enhanced induction of hippocampal long-term potentiation and increased dendritic spine density in the hippocampal CA1 following contextual fear conditioning in adulthood. Zebularine pretreatment led to an enhancement of contextual fear memory, hypomethylation of the Reelin gene, and increased Reelin protein expression in adult rats, while L-methionine had the opposite effects. CONCLUSIONS Maternal deprivation can epigenetically program second-hit stress-induced Reelin expression and enhance the susceptibility to contextual fear memory in adulthood. These findings provide a new framework for understanding the cumulative stress hypothesis.
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Affiliation(s)
- Run-Hua Wang
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China
| | - Ye-Fei Chen
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China
| | - Si Chen
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China,Department of Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Bo Hao
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China
| | - Li Xue
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Guang Wang
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yan-Wei Shi
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Correspondence: Hu Zhao, PhD, MD, Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou 510080, China (); and Yan-Wei Shi, PhD, Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou 510080, China ()
| | - Hu Zhao
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, China,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Correspondence: Hu Zhao, PhD, MD, Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou 510080, China (); and Yan-Wei Shi, PhD, Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou 510080, China ()
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7
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Caregiver maltreatment causes altered neuronal DNA methylation in female rodents. Dev Psychopathol 2017; 29:477-489. [PMID: 28401839 DOI: 10.1017/s0954579417000128] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Negative experiences with a caregiver during infancy can result in long-term changes in brain function and behavior, but underlying mechanisms are not well understood. It is our central hypothesis that brain and behavior changes are conferred by early childhood adversity through epigenetic changes involving DNA methylation. Using a rodent model of early-life caregiver maltreatment (involving exposure to an adverse caregiving environment for postnatal days 1-7), we have previously demonstrated abnormal methylation of DNA associated with the brain-derived neurotrophic factor (Bdnf) gene in the medial prefrontal cortex (mPFC) of adult rats. The aim of the current study was to characterize Bdnf DNA methylation in specific cell populations within the mPFC. In the prefrontal cortex, there is approximately twice as many neurons as glia, and studies have recently shown differential and distinctive DNA methylation patterns in neurons versus nonneurons. Here, we extracted nuclei from the mPFC of adult animals that had experienced maltreatment and used fluorescence-activated cell sorting to isolate cell types before performing bisulfite sequencing to estimate methylation of cytosine-guanine sites. Our data indicate that early-life stress induced methylation of DNA associated with Bdnf IV in a cell-type and sex-specific manner. Specifically, females that experienced early-life maltreatment exhibited greater neuronal cytosine-guanine methylation compared to controls, while no changes were detected in Bdnf methylation in males regardless of cell type. These changes localize the specificity of our previous findings to mPFC neurons and highlight the capacity of maltreatment to cause methylation changes that are likely to have functional consequences for neuronal function.
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Pesarico AP, Rosa SG, Stangherlin EC, Mantovani AC, Zeni G, Nogueira CW. 7-Fluoro-1,3-diphenylisoquinoline-1-amine reverses the reduction in self-care behavior induced by maternal separation stress in rats by modulating glutamatergic/GABAergic systems. J Psychiatr Res 2017; 89:28-37. [PMID: 28153643 DOI: 10.1016/j.jpsychires.2017.01.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 01/12/2017] [Accepted: 01/19/2017] [Indexed: 12/18/2022]
Abstract
7-Fluoro-1,3-diphenylisoquinoline-1-amine (FDPI) is a promising isoquinoline that elicits an antidepressant-like action in rodents. In this study, an animal model of stress induced by maternal separation was used to investigate the effects of FDPI in Wistar rats of 30 and 90 days of age. It was investigated the effects of maternal separation in the self-care behavior and the contribution of glutamatergic and gamma-aminobutyric acid (GABA)ergic systems in the FDPI action. Male Wistar rats were separated from their mothers for 3 h/day from postnatal day (PND) 1-10. The rats were treated at different ages (PND-30 and PND-90) with FDPI (5 mg/kg, intragastrically/7 days) and performed the splash test. Maternal separation reduced total grooming time in the splash test, an index of motivational and self-care behavior, and FDPI treatment was effective in reversing this behavior in rats at both ages. The neurochemical parameters were differently affected, dependent on the age of rats, by maternal separation and FDPI. Maternal separation increased the GABA uptake and the excitatory amino acid transporter 1 levels in the prefrontal cortices of rats at PND-30 and FDPI was effective against these alterations. At PND-90, maternal separation decreased the glutamate uptake and increased the GABA uptake and the N-methyl-D-aspartate (NMDA) receptor 2B levels in the prefrontal cortices of rats. FDPI reversed the neurochemical alterations caused by maternal separation in the prefrontal cortices of rats at PND-90. The results of this study demonstrated that FDPI reversed the reduction in self-care behavior induced by maternal separation stress in rats by modulating the glutamatergic/GABAergic systems in rats.
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Affiliation(s)
- Ana Paula Pesarico
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Suzan G Rosa
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Eluza C Stangherlin
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Anderson C Mantovani
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Cristina Wayne Nogueira
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil.
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9
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Amos-Kroohs RM, Davenport LL, Gutierrez A, Hufgard JR, Vorhees CV, Williams MT. Developmental manganese exposure in combination with developmental stress and iron deficiency: Effects on behavior and monoamines. Neurotoxicol Teratol 2016; 56:55-67. [PMID: 27302314 DOI: 10.1016/j.ntt.2016.06.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 06/09/2016] [Accepted: 06/10/2016] [Indexed: 12/20/2022]
Abstract
Manganese (Mn) is an essential element but neurotoxic at higher exposures, however, Mn exposure seldom occurs in isolation. It often co-occurs in populations with inadequate dietary iron (Fe) and limited resources that result in stress. Subclinical FeD affects up to 15% of U.S. children and exacerbates Mn toxicity by increasing Mn bioavailability. Therefore, we investigated Mn overexposure (MnOE) in rats in combination with Fe deficiency (FeD) and developmental stress, for which we used barren cage rearing. For barren cage rearing (BAR), rats were housed in cages with a wire grid floor or standard bedding material (STD) from embryonic day (E)7 through postnatal day (P)28. For FeD, dams were fed a 90% Fe-deficient NIH-07 diet from E15 through P28. Within each litter, different offspring were treated with 100mg/kg Mn (MnOE) or vehicle (VEH) by gavage every other day from P4-28. Behavior was assessed at two ages and consisted of: open-field, anxiety tests, acoustic startle response (ASR) with prepulse inhibition (PPI), sociability, sucrose preference, tapered beam crossing, and the Porsolt's forced swim test. MnOE had main effects of decreasing activity, ASR, social preference, and social novelty. BAR and FeD transiently modified MnOE effects. BAR groups weighed less and showed decreased anxiety in the elevated zero maze, had increased ASR and decreased PPI, and exhibited reduced sucrose preference compared with the STD groups. FeD animals also weighed less and had increased slips on the tapered beam. Most of the monoamine effects were dopaminergic and occurred in the MnOE groups. The results showed that Mn is a pervasive developmental neurotoxin, the effects of which are modulated by FeD and/or BAR cage rearing.
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Affiliation(s)
- Robyn M Amos-Kroohs
- Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, OH, United States; University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States
| | - Laurie L Davenport
- Department of Environmental Health, University of Cincinnati, 3223 Eden Ave., Cincinnati, OH 45220, United States
| | - Arnold Gutierrez
- Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, OH, United States; University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States
| | - Jillian R Hufgard
- Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, OH, United States; University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States
| | - Charles V Vorhees
- Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, OH, United States; University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States
| | - Michael T Williams
- Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, OH, United States; University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States.
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Early‐life stress increases the survival of midbrain neurons during postnatal development and enhances reward‐related and anxiolytic‐like behaviors in a sex‐dependent fashion. Int J Dev Neurosci 2015; 44:33-47. [DOI: 10.1016/j.ijdevneu.2015.05.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 05/07/2015] [Accepted: 05/08/2015] [Indexed: 01/30/2023] Open
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Blaze J, Asok A, Roth TL. Long-term effects of early-life caregiving experiences on brain-derived neurotrophic factor histone acetylation in the adult rat mPFC. Stress 2015; 18:607-15. [PMID: 26305287 PMCID: PMC4879775 DOI: 10.3109/10253890.2015.1071790] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Infant-caregiver experiences are major contributing factors to neural and behavioral development. Research indicates that epigenetic mechanisms provide a way in which infant-caregiver experiences affect gene activity and other downstream processes in the brain that influence behavioral development. Our laboratory previously demonstrated in a rodent model that exposure to maltreatment alters methylation of DNA associated with the brain-derived neurotrophic factor (bdnf) and reelin genes as well as mRNA of key epigenetic regulatory genes in the medial prefrontal cortex (mPFC). In the current study, we characterized patterns of histone acetylation at bdnf and reelin gene loci after our caregiver manipulations. Using a within-litter design (n = 8-10/group from eight litters), pups were exposed to adverse (maltreatment condition: exposure to a stressed caregiver) or nurturing (cross-foster condition: exposure to a nurturing caregiver) caregiving environments outside the home cage for 30 min daily during the first postnatal week. Remaining pups in a litter were left with the biological mother during each session (providing normal care controls). We then used chromatin immunoprecipitation (ChIP) and quantitative RT-PCR to measure histone 3 lysine 9/14 acetylation associated with bdnf promoters I and IV and the reelin promoter in the adult mPFC. Maltreated females had decreased acetylation at bdnf IV, while neither males nor females exhibited histone acetylation alterations at bdnf I or reelin. These data demonstrate the ability of maltreatment to have long-term consequences on histone acetylation in the mPFC, and provide further evidence of the epigenetic susceptibility of bdnf IV to the quality of infant-caregiver experiences.
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Affiliation(s)
- Jennifer Blaze
- a Department of Psychological and Brain Sciences , University of Delaware , Newark , DE , USA
| | - Arun Asok
- a Department of Psychological and Brain Sciences , University of Delaware , Newark , DE , USA
| | - Tania L Roth
- a Department of Psychological and Brain Sciences , University of Delaware , Newark , DE , USA
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Sanchez-Ol CP, Guzman-Vel S, Melo AI, Flores G, De-La-Cruz F, R. Zamudio S. Sub-Chronic Cerebrolysin Treatment Attenuates the Long-lasting Behavioral Alterations Caused by Maternal Separation in Rats. INT J PHARMACOL 2014. [DOI: 10.3923/ijp.2014.406.417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Female-dependent impaired fear memory of adult rats induced by maternal separation, and screening of possible related genes in the hippocampal CA1. Behav Brain Res 2014; 267:111-8. [DOI: 10.1016/j.bbr.2014.03.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 03/14/2014] [Accepted: 03/15/2014] [Indexed: 12/29/2022]
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Oliveira S, Fontanelli BAF, Stefanini M, Chuffa L, Teixeira G, Lizarte F, Tirapelli L, Quitete V, Matheus S, Padovani C, Martinez M, Martinez F. Interaction of maternal separation on the UCh rat Cerebellum. Microsc Res Tech 2013; 77:44-51. [DOI: 10.1002/jemt.22311] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 10/23/2013] [Accepted: 10/23/2013] [Indexed: 12/17/2022]
Affiliation(s)
- S.A. Oliveira
- Department of Anatomy, Biosciences Institute; UNESP-Univ. Estadual Paulista; Botucatu SP Brazil
| | - B. A. F. Fontanelli
- Department of Anatomy, Biosciences Institute; UNESP-Univ. Estadual Paulista; Botucatu SP Brazil
| | - M.A. Stefanini
- Department of Morphology and Pathology; UFSCar-Federal University of São Carlos; São Carlos SP Brazil
| | - L.G.A. Chuffa
- Department of Anatomy, Biosciences Institute; UNESP-Univ. Estadual Paulista; Botucatu SP Brazil
| | - G.R. Teixeira
- Department of Anatomy, Biosciences Institute; UNESP-Univ. Estadual Paulista; Botucatu SP Brazil
| | - F.S.N. Lizarte
- Department of Surgery and Anatomy; USP-University of São Paulo; Ribeirão Preto SP Brazil
| | - L.F. Tirapelli
- Department of Surgery and Anatomy; USP-University of São Paulo; Ribeirão Preto SP Brazil
| | - V.H.A. Quitete
- Department of Structural and Functional Biology, Institute of Biology; State University of Campinas (UNICAMP); Campinas, São Paulo Brazil
| | - S.M.M. Matheus
- Department of Anatomy, Biosciences Institute; UNESP-Univ. Estadual Paulista; Botucatu SP Brazil
| | - C.R. Padovani
- Department of Biostatistics, Biosciences Institute; UNESP-Univ. Estadual Paulista; Botucatu SP Brazil
| | - M. Martinez
- Department of Morphology and Pathology; UFSCar-Federal University of São Carlos; São Carlos SP Brazil
| | - F.E. Martinez
- Department of Anatomy, Biosciences Institute; UNESP-Univ. Estadual Paulista; Botucatu SP Brazil
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