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Mastella GA, de Oliveira IH, de Godoi AK, do Nascimento LG, Alberton KS, Dagostim V, Cancilier SG, Madeira K, Réus GZ, Zugno AI. Behavioral and inflammatory changes in rats induced by a three-hit stress model: Implications for psychiatric disorders. J Psychiatr Res 2024; 170:307-317. [PMID: 38194848 DOI: 10.1016/j.jpsychires.2023.12.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 11/24/2023] [Accepted: 12/20/2023] [Indexed: 01/11/2024]
Abstract
Many aspects of the impact of childhood trauma remain unknown, such as the age at which individuals are most vulnerable to trauma, whether traumatic experiences have more severe and lasting effects when experienced early in life, and whether early life trauma causes psychiatric conditions such as anxiety and major depressive disorder (MDD) that persist over time or evolve into other disorders. Thus, this study aimed to investigate the impact of traumatic experiences in childhood on susceptibility to mood disorders in adulthood, particularly MDD. Animal models were used to address these questions, and different stressor protocols at various stages of the offspring's life were used. Three-hit starting with injections of Poly: IC was performed on the 9th day of gestation and then considered the first stressor. After birth, the animals were exposed to the maternal deprivation (MD) protocol, which separated the pups from the mother 3 h a day during the first ten days of life. From the 60th day of life, the animals were divided to receive the chronic mild stress (CMS) protocol over 21 days. The stressors can induce anxiety-like behaviors, such as increased locomotor activity through a maternal immune activation protocol using Poly: IC and demonstrating depressive-like behaviors through the MD and CMS protocols. It also showed changes in brain structures for pro-inflammatory parameters, IL-1β and TNF-α, and alterations in anti-inflammatory parameters, IL-4 and IL-10, at different ages of life. The study also found that regulating pro- and anti-inflammatory cytokines is necessary for appropriate neuronal behavior, and stress responses can be both friendly and enemy, with costs and benefits balanced to provide the best-fit result. In conclusion, phenotypic characteristics of animals' life history are shaped by signals transmitted directly or indirectly to developing animals, known as "predictive adaptive responses."
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Affiliation(s)
- Gustavo Antunes Mastella
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Isabela Hübbe de Oliveira
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Amanda Kunz de Godoi
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Leonardo Ghisi do Nascimento
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Kelvin Schmoeller Alberton
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Vitória Dagostim
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Sarah Galatto Cancilier
- Laboratório de Pesquisa Aplicada em Computação e Métodos Quantitativos (LACON), University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Kristian Madeira
- Laboratório de Pesquisa Aplicada em Computação e Métodos Quantitativos (LACON), University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Gislaine Zilli Réus
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Alexandra Ioppi Zugno
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
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Wang J, Hua G, Chen J, Cui K, Yang Z, Han D, Yang X, Dong X, Ma Y, Cai G, Zhang Y, Li J, Tai Y, Da L, Li X, Ma L, Ma Q, Li R, Liu J, Darwish HYA, Wu K, Rong W, Liu W, Zhao Y, Deng X. Epigenetic mechanism of Gtl2-miRNAs causes the primitive sheep characteristics found in purebred Merino sheep. Cell Biosci 2023; 13:190. [PMID: 37828606 PMCID: PMC10571318 DOI: 10.1186/s13578-023-01142-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 10/05/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND It is not uncommon for some individuals to retain certain primitive characteristics even after domestication or long-term intensive selection. Wild ancestors or original varieties of animals typically possess strong adaptability to environmental preservation, a trait that is often lacking in highly artificially selected populations. In the case of the Merino population, a world-renowned fine wool sheep breed, a phenotype with primitive coarse wool characteristic has re-emerged. It is currently unclear whether this characteristic is detrimental to the production of fine wool or whether it is linked to the adaptability of sheep. The underlying genetic/epigenetic mechanisms behind this trait are also poorly understood. RESULTS This study identified lambs with an ancestral-like coarse (ALC) wool type that emerged during the purebred breeding of Merino fine wool sheep. The presence of this primitive sheep characteristic resulted in better environmental adaptability in lambs, as well as improved fine wool yield in adulthood. Reciprocal cross experiments revealed that the ALC phenotype exhibited maternal genetic characteristics. Transcriptomic SNP analysis indicated that the ALC phenotype was localized to the imprinted Gtl2-miRNAs locus, and a significant correlation was found between the ALC wool type and a newly identified short Interstitial Telomeric Sequences (s-ITSs) at this locus. We further confirmed that a novel 38-nt small RNA transcribed from these s-ITSs, in combination with the previously reported 22-nt small RNAs cluster from the Gtl2-miRNAs locus, synergistically inhibited PI3K/AKT/Metabolic/Oxidative stress and subsequent apoptotic pathways in wool follicle stem cells, resulting in the ALC wool type. The necessity of Gtl2-miRNAs in controlling primary hair follicle morphogenesis, as well as the wool follicle type for ALC wool lambs, was verified using intergenic differentially methylated region-knockout mice. CONCLUSION The ALC wool type of Merino sheep, which does not reduce wool quality but increases yield and adaptability, is regulated by epigenetic mechanisms in the imprinted Gtl2-miRNAs region on sheep chromosome 18, with the maternally expressed imprinted gene responsible for the ALC phenotype. This study highlights the significance of epigenetic regulation during embryonic and juvenile stages and emphasizes the advantages of early adaptation breeding for maternal parents in enhancing the overall performance of their offspring.
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Affiliation(s)
- Jiankui Wang
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Guoying Hua
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Jianfei Chen
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Kai Cui
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100086, China
| | - Zu Yang
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Deping Han
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Xue Yang
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Xianggui Dong
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Yuhao Ma
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Ganxian Cai
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Yuanyuan Zhang
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Jinnan Li
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Yurong Tai
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Lai Da
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Huhhot, 010031, China
| | - Xinhai Li
- College of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Lina Ma
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, China
| | - Qing Ma
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, China
| | - Rui Li
- Jinfeng Animal Husbandry Group Co., Ltd., Chifeng, 024000, China
| | - Jianbin Liu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Hesham Y A Darwish
- Department of Applied Biotechnology, Molecular Biology Researches & Studies Institute, Assiut University, Assiut, 71526, Egypt
| | - Keliang Wu
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Weiheng Rong
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Huhhot, 010031, China
| | - Wansheng Liu
- Department of Animal Science, Center for Reproductive Biology and Health, College of Agricultural Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Yaofeng Zhao
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China
| | - Xuemei Deng
- Beijing Key Laboratory for Animal Genetic Improvement & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, 100193, China.
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Possamai-Della T, Cararo JH, Aguiar-Geraldo JM, Peper-Nascimento J, Zugno AI, Fries GR, Quevedo J, Valvassori SS. Prenatal Stress Induces Long-Term Behavioral Sex-Dependent Changes in Rats Offspring: the Role of the HPA Axis and Epigenetics. Mol Neurobiol 2023; 60:5013-5033. [PMID: 37233974 DOI: 10.1007/s12035-023-03348-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/13/2023] [Indexed: 05/27/2023]
Abstract
Preclinical genetic studies have related stress early exposures with changes in gene regulatory mechanisms, including epigenetic alterations, such as modifications of DNA methylation, histone deacetylation, and histones acetylation. This study evaluates the effects of prenatal stress on the behavior, hypothalamus-pituitary-adrenal (HPA)-axis, and epigenetic parameters in stressed dams and their offspring. The rats were subjected to a protocol of chronic unpredictable mild stress on the fourteenth day of pregnancy until the birth of offspring. After birth, maternal care was evaluated for six days. Following weaning, the locomotor and depressive-like behaviors of the dams and their offspring (60 days old) were assessed. The HPA axis parameters were evaluated in serum from dams and offspring, and epigenetic parameters (histone acetyltransferase (HAT), histone deacetylase (HDAC), DNA methyltransferase (DNMT) activities, and the levels of histone H3 acetylated at lysine residue 9 (H3K9ac) and histone 3 acetylated at lysine residue 14 (H3K14ac)) were assessed in dams' and offspring' brains. Prenatal stress did not significantly influence maternal care; however, it induced manic behavior in female offspring. These behavioral alterations in the offspring were accompanied by hyperactivity of the HPA-axis, epigenetic adaptations in the activity of HDAC and DNMT, and acetylation in the histones H3K9 and H3K14. In addition, the prenatal stressed female offspring showed increased levels of ACTH compared to their male counterpart. Our findings reinforce the impact of prenatal stress on behavior, stress response, and epigenetic profile of offspring.
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Affiliation(s)
- Taise Possamai-Della
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - José Henrique Cararo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Jorge M Aguiar-Geraldo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Jefté Peper-Nascimento
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Alexandra I Zugno
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Gabriel R Fries
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
- Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
- Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - João Quevedo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
- Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
- Center for Interventional Psychiatry, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, TX, USA
| | - Samira S Valvassori
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
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Canever L, Varela R, Mastella GA, Damázio LS, Valvassori SS, Quevedo JL, Zugno AI. Effects of maternal folic acid supplementation on nuclear methyltransferase activity of adult rats subjected to an animal model of schizophrenia. Int J Dev Neurosci 2021; 81:461-467. [PMID: 33786893 DOI: 10.1002/jdn.10109] [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: 11/09/2020] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Schizophrenia is considered one of the most disabling and severe human diseases worldwide. The etiology of schizophrenia is thought to be multifactorial and evidence suggests that DNA methylation can play an important role in underlying pivotal neurobiological alterations of this disorder. Some studies have demonstrated the effects of dietary supplementation as an alternative approach to the prevention of schizophrenia, including folic acid. However, no study has ever investigated the role of such supplementation in altering the DNA methylation system in the context of schizophrenia. OBJECTIVES The present study aims to investigate the effects of maternal folic acid supplementation at different doses on nuclear methyltransferase activity of adult rat offspring subjected to an animal model schizophrenia induced by ketamine. METHODS Adult female Wistar rats, (60 days old) received folic acid-deficient diet, control diet, or control diet plus folic acid supplementation (at 5, 10, or 50 mg/kg) during pregnancy and lactation. After reaching adulthood (60 days), the male offspring of these dams were subjected to the animal model of schizophrenia induced by 7 days of ketamine intraperitoneal injection (25 mg/kg). After the 7-day protocol, the activity of nuclear methyltransferase was evaluated in the brains of the offspring. RESULTS Maternal folic acid supplementation at 50 mg/kg increased methyltransferase activity in the frontal cortex, while 10 mg/kg increased methyltransferase activity in the hippocampus. In the striatum of offspring treated with ketamine, maternal deficient diet, control diet, and folic acid supplementation at 5 mg/kg decreased methyltransferase activity compared to the control group. The folic acid supplementation at 10 and 50 mg/kg reversed this ketamine effect. CONCLUSIONS Maternal FA deficiency could be related to schizophrenia pathophysiology, while FA supplementation could present a protective effect since it demonstrated persistent effects in epigenetic parameters in adult offspring.
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Affiliation(s)
- Lara Canever
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Roger Varela
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Gustavo A Mastella
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Louyse S Damázio
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Samira S Valvassori
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - João L Quevedo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil.,Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Alexandra I Zugno
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
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The regulation mechanisms and the Lamarckian inheritance property of DNA methylation in animals. Mamm Genome 2021; 32:135-152. [PMID: 33860357 DOI: 10.1007/s00335-021-09870-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 04/05/2021] [Indexed: 12/19/2022]
Abstract
DNA methylation is a stable and heritable epigenetic mechanism, of which the main functions are stabilizing the transcription of genes and promoting genetic conservation. In animals, the direct molecular inducers of DNA methylation mainly include histone covalent modification and non-coding RNA, whereas the fundamental regulators of DNA methylation are genetic and environmental factors. As is well known, competition is present everywhere in life systems, and will finally strike a balance that is optimal for the animal's survival and reproduction. The same goes for the regulation of DNA methylation. Genetic and environmental factors, respectively, are responsible for the programmed and plasticity changes of DNA methylation, and keen competition exists between genetically influenced procedural remodeling and environmentally influenced plastic alteration. In this process, genetic and environmental factors collaboratively decide the methylation patterns of corresponding loci. DNA methylation alterations induced by environmental factors can be transgenerationally inherited, and exhibit the characteristic of Lamarckian inheritance. Further research on regulatory mechanisms and the environmental plasticity of DNA methylation will provide strong support for understanding the biological function and evolutionary effects of DNA methylation.
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Varela RB, Resende WR, Dal-Pont GC, Gava FF, Tye SJ, Quevedo J, Valvassori SS. HDAC inhibitors reverse mania-like behavior and modulate epigenetic regulatory enzymes in an animal model of mania induced by Ouabain. Pharmacol Biochem Behav 2020; 193:172917. [PMID: 32222371 DOI: 10.1016/j.pbb.2020.172917] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND The etiology of bipolar disorder (BD) is multifactorial, involving both environmental and genetic factors. Current pharmacological treatment is associated with several side effects, which are the main reason patients discontinue treatment. Epigenetic alterations have been studied for their role in the pathophysiology of BD, as they bridge the gap between gene and environment. OBJECTIVE Evaluate the effects of histone deacetylase inhibitors on behavior and epigenetic enzymes activity in a rat model of mania induced by ouabain. METHODS Adult male rats were subjected to a single intracerebroventricular injection of ouabain (10-3 M) followed by 7 days of valproate (200 mg/kg) or sodium butyrate (600 mg/kg) administration. Locomotor and exploratory activities were evaluated in the open-field test. Histone deacetylase, DNA methyltransferase, and histone acetyltransferase activity were assessed in the frontal cortex, hippocampus, and striatum. RESULTS Ouabain induced hyperactivity in rats, which was reversed by valproate and sodium butyrate treatment. Ouabain did not alter the activity of any of the enzymes evaluated. However, valproate and sodium butyrate decreased the activity of histone deacetylase and DNA methyltransferase. Moreover, there was a positive correlation between these two enzymes. CONCLUSION These results suggest that targeting epigenetic mechanisms may play an important role in mania-like behavior management.
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Affiliation(s)
- Roger B Varela
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia; Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC) -, Criciúma, SC, Brazil
| | - Wilson R Resende
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC) -, Criciúma, SC, Brazil
| | - Gustavo C Dal-Pont
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC) -, Criciúma, SC, Brazil
| | - Fernanda F Gava
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC) -, Criciúma, SC, Brazil
| | - Susannah J Tye
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia; Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
| | - João Quevedo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC) -, Criciúma, SC, Brazil; Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth) -, Houston, TX, USA; Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth) -, Houston, TX, USA; Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences -, Houston, TX, USA
| | - Samira S Valvassori
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC) -, Criciúma, SC, Brazil.
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Wu Z, Zhao P. Epigenetic Alterations in Anesthesia-Induced Neurotoxicity in the Developing Brain. Front Physiol 2018; 9:1024. [PMID: 30108514 PMCID: PMC6079265 DOI: 10.3389/fphys.2018.01024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 07/11/2018] [Indexed: 12/14/2022] Open
Abstract
Before birth and early in life, the developing brain is particularly sensitive to environmental and pharmacological influences. Increasing experimental evidence suggests that an association exists between exposure to anesthesia during a vulnerable period of brain development and subsequent poor neurodevelopmental outcomes. However, the mechanisms underlying this association are not fully understood. Epigenetics, broadly defined as the regulation of gene expression without alterations of DNA sequence, has become a field of tremendous interest in neuroscience. In recent years, a growing body of literature suggests that anesthesia-induced long-term changes in gene transcription and functional deficits in learning and behavior later in life are mediated via epigenetic modifications. This brief review provides an overview of epigenetic mechanisms and highlights the emerging roles played by epigenetic dysfunctions in the processes of anesthesia-induced neurotoxicity in the developing brain. Epigenetic targeting of DNA methyltransferases and/or histone deacetylases may have some therapeutic value. Epigenetics may lead to the identification of novel markers that contribute toward considerable translational significance in the field of neuroprotection.
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Affiliation(s)
- Ziyi Wu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ping Zhao
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
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Holt WV. Exploitation of Non-mammalian Model Organisms in Epigenetic Research. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1014:155-173. [DOI: 10.1007/978-3-319-62414-3_9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Van Soom A, Fazeli A. Epigenetics and periconception environment: an introduction. Reprod Fertil Dev 2017; 27:iii-v. [PMID: 27166920 DOI: 10.1071/rdv27n5_in] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- A Van Soom
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium. Corresponding author.
| | - A Fazeli
- Academic Unit of Reproductive and Developmental Medicine, The University Of Sheffield, Level 4, Jessop Wing, Tree Root Walk, S10 2SF Sheffield, UK
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Leroux S, Gourichon D, Leterrier C, Labrune Y, Coustham V, Rivière S, Zerjal T, Coville JL, Morisson M, Minvielle F, Pitel F. Embryonic environment and transgenerational effects in quail. Genet Sel Evol 2017; 49:14. [PMID: 28125975 PMCID: PMC5270212 DOI: 10.1186/s12711-017-0292-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 01/19/2017] [Indexed: 12/27/2022] Open
Abstract
Background Environmental exposures, for instance to chemicals, are known to impact plant and animal phenotypes on the long term, sometimes across several generations. Such transgenerational phenotypes were shown to be promoted by epigenetic alterations such as DNA methylation, an epigenetic mark involved in the regulation of gene expression. However, it is yet unknown whether transgenerational epigenetic inheritance of altered phenotypes exists in birds. The purpose of this study was to develop an avian model to investigate whether changes to the embryonic environment had a transgenerational effect that could alter the phenotypes of third-generation offspring. Given its impact on the mammalian epigenome and the reproductive system in birds, genistein was used as an environment stressor. Results We compared several third-generation phenotypes of two quail “epilines”, which were obtained from genistein-injected eggs (Epi+) or from untreated eggs (Epi−) from the same founders. A “mirrored” crossing strategy was used to minimize between-line genetic variability by maintaining similar ancestor contributions across generations in each line. Three generations after genistein treatment, a significant difference in the sexual maturity of the females, which, after three generations, could not be attributed to direct maternal effects, was observed between the lines, with Epi+ females starting to lay eggs later. Adult body weight was significantly affected by genistein treatment applied in a previous generation, and a significant interaction between line and sex was observed for body weight at 3 weeks. Behavioral traits, such as evaluating the birds’ reaction to social isolation, were also significantly affected by genistein treatment. Yet, global methylation analyses revealed no significant difference between the epilines. Conclusions These findings demonstrate that embryonic environment affects the phenotype of offspring three generations later in quail. While one cannot rule out the existence of some initial genetic variability between the lines, the mirrored animal design should have minimized its effects, and thus, the observed differences in animals of the third generation may be attributed, at least partly, to transgenerational epigenetic phenomena. Electronic supplementary material The online version of this article (doi:10.1186/s12711-017-0292-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sophie Leroux
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, 31326, Castanet Tolosan, France
| | | | - Christine Leterrier
- UMR INRA PRC, 37380, Nouzilly, France.,CNRS, 37380, Nouzilly, France.,UFR Tours, 37380, Nouzilly, France.,IFCE, 37380, Nouzilly, France
| | - Yann Labrune
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, 31326, Castanet Tolosan, France
| | | | | | - Tatiana Zerjal
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Jean-Luc Coville
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Mireille Morisson
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, 31326, Castanet Tolosan, France
| | - Francis Minvielle
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Frédérique Pitel
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, 31326, Castanet Tolosan, France.
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