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Zhang D, Xie Y, Wang L, Zhou K. Structural and transcriptional signatures of arithmetic abilities in children. NPJ SCIENCE OF LEARNING 2024; 9:58. [PMID: 39349496 PMCID: PMC11442576 DOI: 10.1038/s41539-024-00270-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 09/22/2024] [Indexed: 10/02/2024]
Abstract
Arithmetic ability is critical for daily life, academic achievement, career development, and future economic success. Individual differences in arithmetic skills among children and adolescents are related to variations in brain structures. Most existing studies have used hypothesis-driven region of interest analysis. To identify distributed brain regions related to arithmetic ability, we used data-driven cross-validated predictive models to analyze cross-sectional behavioral and structural MRI data in children and adolescents. The gray matter volume (GMV) of widespread brain regions reliably predicted arithmetic abilities measured by the Comprehensive Mathematical Abilities Test. Furthermore, we applied neuroimaging-transcriptome association analysis to explore transcriptional signatures associated with structural patterns of arithmetic ability. Structural patterns of arithmetic ability primarily correlated with transcriptional profiles enriched for genes involved in transmembrane transport and synaptic signaling. Our findings enhance our understanding of the neural and genetic mechanisms underlying children's arithmetic ability and offer a practical predictor for arithmetic skills during development.
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Affiliation(s)
- Dai Zhang
- Department of Radiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
- Medical Imaging Research Center, Anhui Medical University, Hefei, China
| | - Yanghui Xie
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
| | - Longsheng Wang
- Department of Radiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.
- Medical Imaging Research Center, Anhui Medical University, Hefei, China.
| | - Ke Zhou
- Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education (Beijing Normal University), Faculty of Psychology, Beijing Normal University, Beijing, China.
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2
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Gomez-Pinilla F, Thapak P. Exercise epigenetics is fueled by cell bioenergetics: Supporting role on brain plasticity and cognition. Free Radic Biol Med 2024; 220:43-55. [PMID: 38677488 PMCID: PMC11144461 DOI: 10.1016/j.freeradbiomed.2024.04.237] [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: 02/29/2024] [Revised: 04/04/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
Exercise has the unique aptitude to benefit overall health of body and brain. Evidence indicates that the effects of exercise can be saved in the epigenome for considerable time to elevate the threshold for various diseases. The action of exercise on epigenetic regulation seems central to building an "epigenetic memory" to influence long-term brain function and behavior. As an intrinsic bioenergetic process, exercise engages the function of the mitochondria and redox pathways to impinge upon molecular mechanisms that regulate synaptic plasticity and learning and memory. We discuss how the action of exercise uses mechanisms of bioenergetics to support a "epigenetic memory" with long-term implications for neural and behavioral plasticity. This information is crucial for directing the power of exercise to reduce the burden of neurological and psychiatric disorders.
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Affiliation(s)
- Fernando Gomez-Pinilla
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, 90095, USA; Department of Neurosurgery, UCLA Brain Injury Research Center, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
| | - Pavan Thapak
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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3
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Charrier M, Lumineau S, George I, Meurisse M, Georgelin M, Palme R, Angelier F, Coustham V, Nicolle C, Bertin A, Darmaillacq AS, Dickel L, Guémené D, Calandreau L, Houdelier C. Maternal stress effects across generations in a precocial bird. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231826. [PMID: 39205998 PMCID: PMC11349446 DOI: 10.1098/rsos.231826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 05/24/2024] [Indexed: 09/04/2024]
Abstract
Prenatal maternal stress (PMS) is known to shape the phenotype of the first generation offspring (F1) but according to some studies, it could also shape the phenotype of the offspring of the following generations. We previously showed in the Japanese quail that PMS increased the emotional reactivity of F1 offspring in relation to (i) a variation in the levels of some histone post-translational modification (H3K27me3) in their brains and (ii) a modulation of the hormonal composition of the eggs from which they hatched. Here, we wondered whether PMS could also influence the behaviour of the second (F2) and third (F3) generation offspring due to the persistence of the specific marks we identified. Using a principal component analysis, we found that PMS influenced F2 and F3 quail profiles with subtle differences between generations. It increased F2 neophobia, F3 fearfulness and F3 neophobia but only in females. Interestingly, we did not find any variations in the level of histone post-translational modification in F3 brains and we observed inconsistent modulations of androstenedione levels in F1 and F2 eggs. Although they may vary over generations, our results demonstrate that PMS can have phenotypical effects into the third generation.
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Affiliation(s)
- Marion Charrier
- Univ Rennes, CNRS, Normandie Univ, EthoS (Éthologie animale et humaine), UMR 6552, Rennes, France
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France
- SYSAAF, Centre INRAE Val de Loire, 37380 Nouzilly, France
| | - Sophie Lumineau
- Univ Rennes, CNRS, Normandie Univ, EthoS (Éthologie animale et humaine), UMR 6552, Rennes, France
| | - Isabelle George
- Univ Rennes, CNRS, Normandie Univ, EthoS (Éthologie animale et humaine), UMR 6552, Rennes, France
| | - Maryse Meurisse
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France
| | - Marion Georgelin
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France
| | - Rupert Palme
- Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Frédéric Angelier
- Centre d'Etudes Biologiques de Chizé, CNRS-LRU, UMR 7372, 79360 Villiers en Bois, France
| | - Vincent Coustham
- INRAE, Université de Tours, BOA, 37380 Nouzilly, France
- INRAE, Université de Pau et des Pays de l'Adour, E2S UPPA, NUMEA, 64310 Saint-Pée-sur-Nivelle, France
| | - Céline Nicolle
- Univ Rennes, CNRS, Normandie Univ, EthoS (Éthologie animale et humaine), UMR 6552, Rennes, France
| | - Aline Bertin
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France
| | - Anne-Sophie Darmaillacq
- Normandie University, UNICAEN, University of Rennes, CNRS, EthoS (Éthologie animale et humaine), UMR 6552, 14000 Caen, France
| | - Ludovic Dickel
- Normandie University, UNICAEN, University of Rennes, CNRS, EthoS (Éthologie animale et humaine), UMR 6552, 14000 Caen, France
| | - Daniel Guémené
- SYSAAF, Centre INRAE Val de Loire, 37380 Nouzilly, France
- INRAE, Université de Tours, BOA, 37380 Nouzilly, France
| | | | - Cécilia Houdelier
- Univ Rennes, CNRS, Normandie Univ, EthoS (Éthologie animale et humaine), UMR 6552, Rennes, France
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Kaštelan S, Nikuševa-Martić T, Pašalić D, Antunica AG, Zimak DM. Genetic and Epigenetic Biomarkers Linking Alzheimer's Disease and Age-Related Macular Degeneration. Int J Mol Sci 2024; 25:7271. [PMID: 39000382 PMCID: PMC11242094 DOI: 10.3390/ijms25137271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 06/26/2024] [Accepted: 06/29/2024] [Indexed: 07/16/2024] Open
Abstract
Alzheimer's disease (AD) represents a prominent neurodegenerative disorder (NDD), accounting for the majority of dementia cases worldwide. In addition to memory deficits, individuals with AD also experience alterations in the visual system. As the retina is an extension of the central nervous system (CNS), the loss in retinal ganglion cells manifests clinically as decreased visual acuity, narrowed visual field, and reduced contrast sensitivity. Among the extensively studied retinal disorders, age-related macular degeneration (AMD) shares numerous aging processes and risk factors with NDDs such as cognitive impairment that occurs in AD. Histopathological investigations have revealed similarities in pathological deposits found in the retina and brain of patients with AD and AMD. Cellular aging processes demonstrate similar associations with organelles and signaling pathways in retinal and brain tissues. Despite these similarities, there are distinct genetic backgrounds underlying these diseases. This review comprehensively explores the genetic similarities and differences between AMD and AD. The purpose of this review is to discuss the parallels and differences between AMD and AD in terms of pathophysiology, genetics, and epigenetics.
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Affiliation(s)
- Snježana Kaštelan
- Department of Ophthalmology, Clinical Hospital Dubrava, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Tamara Nikuševa-Martić
- Department of Biology and Genetics, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
| | - Daria Pašalić
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
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Park S, Min E, Kim S, Kim S, Na K, Park CH, Jung Y, Oh B, Hong I. Exploring Memory Function Beyond Immune Cells: ANGPTL4-Mediated Memory Functions in Tissue Resident Stem Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307545. [PMID: 38666393 PMCID: PMC11267307 DOI: 10.1002/advs.202307545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 04/15/2024] [Indexed: 07/25/2024]
Abstract
Adapted immune cells are known to develop memory functions that increase resistance to subsequent infections after initial pathogen exposure, however, it is unclear whether non-immune cells, like tissue-resident stem cells, have similar memory functions. Here, it is found that tissue-resident stem cells crucial for tissue regeneration show diminished adverse effects on diverse stem cell functions against successive exposure to foreign antigen (β-glucan) to maintain tissue homeostasis and stability both in vitro and in vivo. These data suggest that endometrial stem cells may possess a robust memory function, in contrast, fully differentiated cells like fibroblasts and vesicular cells do not show these memory mechanisms upon consecutive antigen exposure. Moreover, the pivotal role of Angiopoietin-like 4 (ANGPTL4) in regulating the memory functions of endometrial stem cells is identified through specific shRNA knockdown in vitro and knockout mice in vivo experiments. ANGPTL4 is associated with the alteration of diverse stem cell functions and epigenetic modifications, notably through histone H3 methylation changes and two pathways (i.e., PI3K/Akt and FAK/ERK1/2 signaling) upon consecutive antigen exposure. These findings imply the existence of inherent self-defense mechanisms through which local stem cells can adapt and protect themselves from recurrent antigenic challenges, ultimately mitigating adverse consequences.
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Affiliation(s)
- Se‐Ra Park
- Department of Health Sciences and Technology, GAIHSTGachon UniversityIncheon21999Republic of Korea
- Department of Molecular Medicine, School of MedicineGachon UniversityIncheon406–840Republic of Korea
| | - Eun‐kyung Min
- Department of Health Sciences and Technology, GAIHSTGachon UniversityIncheon21999Republic of Korea
- Department of Molecular Medicine, School of MedicineGachon UniversityIncheon406–840Republic of Korea
| | - Soo‐Rim Kim
- Department of Health Sciences and Technology, GAIHSTGachon UniversityIncheon21999Republic of Korea
- Department of Molecular Medicine, School of MedicineGachon UniversityIncheon406–840Republic of Korea
| | - Suk‐Kyung Kim
- Department of Health Sciences and Technology, GAIHSTGachon UniversityIncheon21999Republic of Korea
- Department of Molecular Medicine, School of MedicineGachon UniversityIncheon406–840Republic of Korea
| | - Kun‐Hee Na
- Department of Health Sciences and Technology, GAIHSTGachon UniversityIncheon21999Republic of Korea
- Department of Microbiology, College of MedicineGachon UniversityIncheon21999Republic of Korea
| | - Chan Hum Park
- Department of Otolaryngology‐Head and Neck Surgery, Chuncheon Sacred Heart HospitalHallym University College of MedicineChuncheon24201Republic of Korea
| | - YunJae Jung
- Department of Microbiology, College of MedicineGachon UniversityIncheon21999Republic of Korea
| | - Byung‐Chul Oh
- Department of Physiology, Lee Gil Ya Cancer and Diabetes InstituteGachon University College of MedicineIncheon21999Republic of Korea
| | - In‐Sun Hong
- Department of Health Sciences and Technology, GAIHSTGachon UniversityIncheon21999Republic of Korea
- Department of Molecular Medicine, School of MedicineGachon UniversityIncheon406–840Republic of Korea
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Oga K, Fuchikami M, Kobayashi H, Miyagi T, Fujita S, Fujita S, Okada S, Morinobu S. Involvement of dysregulated hippocampal histone H3K9 methylation at the promoter of the BDNF gene in impaired memory extinction. Psychopharmacology (Berl) 2024:10.1007/s00213-024-06640-7. [PMID: 38940908 DOI: 10.1007/s00213-024-06640-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 06/17/2024] [Indexed: 06/29/2024]
Abstract
RATIONALE Since the precise mechanisms of posttraumatic stress disorder (PTSD) remain unknown, effective treatment interventions have not yet been established. Impaired extinction of fear memory (EFM) is one of the core symptoms of PTSD and is associated with stress-induced epigenetic change in gene expression. OBJECTIVES In this study, we examined whether the involvement of histone H3 lysine 9 dimethylation (H3K9me2) in EFM is mediated through brain-derived neurotrophic factor (BDNF) expression in the hippocampus, and whether BIX01294, a selective G9a and GLP histone methyltransferase inhibitor, could be treatment for impaired EFM in an animal model of PTSD. METHODS The single prolonged stress (SPS) paradigm was used to model PTSD. We measured BDNF mRNA levels by RT-PCR, and H3K9me2 levels in the BDNF gene promoters by chromatin immunoprecipitation-qPCR. After undergoing contextual fear conditioning and hippocampal injection of BIX01294, male rats were subjected to extinction training and extinction testing and their freezing times and BDNF mRNA levels were measured. RESULTS Compared to sham rats, SPS rats showed decreased BDNF mRNA levels 2 h after extinction training, no significant changes in levels of global H3K9me2 prior to extinction training, and increased levels of H3K9me2 in BDNF gene promoter IV, but not in BDNF gene promoter I. Administration of BIX01294 ameliorated the decrease in BDNF mRNA levels 2 h after extinction training and subsequently alleviated impaired EFM in extinction tests in SPS rats. CONCLUSION We conclude that reduced hippocampal levels of BDNF mRNA due to increase in H3K9me2 levels may play a role in PTSD-associated EFM impairment, and BIX01294 could be a PTSD treatment option.
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Affiliation(s)
- Kenichi Oga
- Department of Psychiatry and Neuroscience, Division of Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-Ku, Kasumi 1-2-3, Hiroshima City, Hiroshima, Japan
| | - Manabu Fuchikami
- Department of Psychiatry and Neuroscience, Division of Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-Ku, Kasumi 1-2-3, Hiroshima City, Hiroshima, Japan.
| | - Hironori Kobayashi
- Department of Psychiatry and Neuroscience, Division of Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-Ku, Kasumi 1-2-3, Hiroshima City, Hiroshima, Japan
| | - Tatsuhiro Miyagi
- Department of Psychiatry and Neuroscience, Division of Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-Ku, Kasumi 1-2-3, Hiroshima City, Hiroshima, Japan
| | - Sho Fujita
- Department of Psychiatry and Neuroscience, Division of Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-Ku, Kasumi 1-2-3, Hiroshima City, Hiroshima, Japan
| | - Satoshi Fujita
- Department of Psychiatry and Neuroscience, Division of Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-Ku, Kasumi 1-2-3, Hiroshima City, Hiroshima, Japan
| | - Satoshi Okada
- Department of Psychiatry and Neuroscience, Division of Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-Ku, Kasumi 1-2-3, Hiroshima City, Hiroshima, Japan
| | - Shigeru Morinobu
- Department of Psychology, School of Faculty of Health and Wellness Sciences, Hiroshima International University, Kure, Japan
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Kim RK, Truby NL, Silva GM, Picone JA, Miller CS, Baldwin AN, Neve RL, Cui X, Hamilton PJ. Histone H1x in mouse ventral hippocampus associates with, but does not cause behavioral adaptations to stress. Transl Psychiatry 2024; 14:239. [PMID: 38834575 PMCID: PMC11150540 DOI: 10.1038/s41398-024-02931-x] [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: 11/07/2023] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 06/06/2024] Open
Abstract
Prior research has identified differential protein expression levels of linker histone H1x within the ventral hippocampus (vHipp) of stress-susceptible versus stress-resilient mice. These mice are behaviorally classified based on their divergent responses to chronic social stress. Here, we sought to determine whether elevated vHipp H1x protein levels directly contribute to these diverging behavioral adaptations to stress. First, we demonstrated that stress-susceptible mice uniquely express elevated vHipp H1x protein levels following chronic stress. Given that linker histones coordinate heterochromatin compaction, we hypothesize that elevated levels of H1x in the vHipp may impede pro-resilience transcriptional adaptations and prevent development of the resilient phenotype following social stress. To test this, 8-10-week-old male C57BL/6 J mice were randomly assigned to groups undergoing 10 days of chronic social defeat stress (CSDS) or single housing, respectively. Following CSDS, mice were classified as susceptible versus resilient based on their social interaction behaviors. We synthesized a viral overexpression (OE) vector for H1x and transduced all stressed and single housed mice with either H1x or control GFP within vHipp. Following viral delivery, we conducted social, anxiety-like, and memory-reliant behavior tests on distinct cohorts of mice. We found no behavioral adaptations following H1x OE compared to GFP controls in susceptible, resilient, or single housed mice. In sum, although we confirm elevated vHipp protein levels of H1x associate with susceptibility to social stress, we observe no significant behavioral consequence of H1x OE. Thus, we conclude elevated levels of H1x are associated with, but are not singularly sufficient to drive development of behavioral adaptations to stress.
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Affiliation(s)
- R Kijoon Kim
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Natalie L Truby
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Gabriella M Silva
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Joseph A Picone
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Cary S Miller
- Department of Animal Science, North Carolina State University, Raleigh, NC, USA
| | - Amber N Baldwin
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Rachael L Neve
- Gene Delivery Technology Core, Massachusetts General Hospital, Cambridge, MA, USA
| | - Xiaohong Cui
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Peter J Hamilton
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.
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Chen YZ, Zhu XM, Lv P, Hou XK, Pan Y, Li A, Du Z, Xuan JF, Guo X, Xing JX, Liu K, Yao J. Association of histone modification with the development of schizophrenia. Biomed Pharmacother 2024; 175:116747. [PMID: 38744217 DOI: 10.1016/j.biopha.2024.116747] [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: 02/29/2024] [Revised: 05/06/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024] Open
Abstract
Schizophrenia, influenced by genetic and environmental factors, may involve epigenetic alterations, notably histone modifications, in its pathogenesis. This review summarizes various histone modifications including acetylation, methylation, phosphorylation, ubiquitination, serotonylation, lactylation, palmitoylation, and dopaminylation, and their implications in schizophrenia. Current research predominantly focuses on histone acetylation and methylation, though other modifications also play significant roles. These modifications are crucial in regulating transcription through chromatin remodeling, which is vital for understanding schizophrenia's development. For instance, histone acetylation enhances transcriptional efficiency by loosening chromatin, while increased histone methyltransferase activity on H3K9 and altered histone phosphorylation, which reduces DNA affinity and destabilizes chromatin structure, are significant markers of schizophrenia.
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Affiliation(s)
- Yun-Zhou Chen
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Xiu-Mei Zhu
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Peng Lv
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Xi-Kai Hou
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Ying Pan
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Ang Li
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Zhe Du
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Jin-Feng Xuan
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Xiaochong Guo
- Laboratory Animal Center, China Medical University, PR China
| | - Jia-Xin Xing
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China.
| | - Kun Liu
- Key Laboratory of Health Ministry in Congenital Malformation, Shengjing Hospital of China Medical University, PR China.
| | - Jun Yao
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China.
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Kong H, Han YY, Yang GL, Li K, Yu L, Xie XK, Xia GY, Wei PJ, Zhang WR, Li CH. Tenuifolin improves learning and memory by regulating long-term potentiation and dendritic structure of hippocampal CA1 area in healthy female mice but not male mice. Behav Brain Res 2024; 466:114974. [PMID: 38554850 DOI: 10.1016/j.bbr.2024.114974] [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: 11/17/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Polygala tenuifolia Wild is an ancient traditional Chinese medicine. Its main component, tenuifolin (TEN), has been proven to improve cognitive impairment caused by neurodegenerative diseases and ovariectomy. However, there was hardly any pharmacological research about TEN and its potential gender differences. Considering the reduction of TEN on learning and memory dysfunction in ovariectomized animals, therefore, we focused on the impact of TEN in different mice genders in the current study. Spontaneous alternation behavior (SAB), light-dark discrimination, and Morris water maze (MWM) tests were used to evaluate the mice's learning and memory abilities. The field excitatory postsynaptic potential (fEPSP) of the hippocampal CA1 region was recorded using an electrophysiological method, and the morphology of the dendritic structure was examined using Golgi staining. In the behavioral experiments, TEN improved the correct rate in female mice in the SAB test, the correct rate in the light-dark discrimination test, and the number of crossing platforms in the MWM test. Additionally, TEN reduced the latency of female mice rather than male mice in light-dark discrimination and MWM tests. Moreover, TEN could significantly increase the slope of fEPSP in hippocampal Schaffer-CA1 and enhance the total length and the number of intersections of dendrites in the hippocampal CA1 area in female mice but not in male mice. Collectively, the results of the current study showed that TEN improved learning and memory by regulating long-term potentiation (LTP) and dendritic structure of hippocampal CA1 area in female mice but not in males. These findings would help to explore the improvement mechanism of TEN on cognition and expand the knowledge of the potential therapeutic value of TEN in the treatment of cognitive impairment.
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Affiliation(s)
- Heng Kong
- School of Life Science, South China Normal University, Guangzhou, China
| | - Yuan-Yuan Han
- School of Life Science, South China Normal University, Guangzhou, China
| | - Gai-Ling Yang
- School of Life Science, South China Normal University, Guangzhou, China
| | - Kang Li
- School of Life Science, South China Normal University, Guangzhou, China
| | - Lu Yu
- School of Life Science, South China Normal University, Guangzhou, China
| | - Xun-Kai Xie
- School of Life Science, South China Normal University, Guangzhou, China
| | - Guang-Yuan Xia
- School of Life Science, South China Normal University, Guangzhou, China
| | - Peng-Ju Wei
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | | | - Chu-Hua Li
- School of Life Science, South China Normal University, Guangzhou, China.
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Grieco M, Giorgi A, Giacovazzo G, Maggiore A, Ficchì S, d'Erme M, Mosca L, Mignogna G, Maras B, Coccurello R. β-Hexachlorocyclohexane triggers neuroinflammatory activity, epigenetic histone post-translational modifications and cognitive dysfunction. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116487. [PMID: 38810285 DOI: 10.1016/j.ecoenv.2024.116487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/06/2024] [Accepted: 05/18/2024] [Indexed: 05/31/2024]
Abstract
Persistent organic pollutants (POPs), which encompass pesticides and industrial chemicals widely utilized across the globe, pose a covert threat to human health. β-hexachlorocyclohexane (β-HCH) is an organochlorine pesticide with striking stability, still illegally dumped in many countries, and recognized as responsible for several pathogenetic mechanisms. This study represents a pioneering exploration into the neurotoxic effects induced by the exposure to β-HCH specifically targeting neuronal cells (N2a), microglia (BV-2), and C57BL/6 mice. As shown by western blot and qPCR analyses, the administration of β-HCH triggered a modulation of NF-κB, a key factor influencing both inflammation and pro-inflammatory cytokines expression. We demonstrated by proteomic and western blot techniques epigenetic modifications in H3 histone induced by β-HCH. Histone acetylation of H3K9 and H3K27 increased in N2a, and in the prefrontal cortex of C57BL/6 mice administered with β-HCH, whereas it decreased in BV-2 cells and in the hippocampus. We also observed a severe detrimental effect on recognition memory and spatial navigation by the Novel Object Recognition Test (NORT) and the Object Place Recognition Task (OPRT) behavioural tests. Cognitive impairment was linked to decreased expression of the genes BDNF and SNAP-25, which are mediators involved in synaptic function and activity. The obtained results expand our understanding of the harmful impact produced by β-HCH exposure by highlighting its implication in the pathogenesis of neurological diseases. These findings will support intervention programs to limit the risk induced by exposure to POPs. Regulatory agencies should block further illicit use, causing environmental hazards and endangering human and animal health.
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Affiliation(s)
- Maddalena Grieco
- Department of Biochemical Sciences, Sapienza University, Rome, Italy
| | - Alessandra Giorgi
- Department of Biochemical Sciences, Sapienza University, Rome, Italy
| | - Giacomo Giacovazzo
- European Center for Brain Research, Santa Lucia Foundation IRCCS, Rome, Italy
| | - Anna Maggiore
- Department of Biochemical Sciences, Sapienza University, Rome, Italy; Department of Brain Sciences, Imperial College, London, UK
| | - Serena Ficchì
- Department of Biochemical Sciences, Sapienza University, Rome, Italy
| | - Maria d'Erme
- Department of Biochemical Sciences, Sapienza University, Rome, Italy
| | - Luciana Mosca
- Department of Biochemical Sciences, Sapienza University, Rome, Italy
| | | | - Bruno Maras
- Department of Biochemical Sciences, Sapienza University, Rome, Italy.
| | - Roberto Coccurello
- European Center for Brain Research, Santa Lucia Foundation IRCCS, Rome, Italy; Institute for Complex Systems, National Research Council (CNR), Roma, Italy
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11
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Pérez-Sisqués L, Bhatt SU, Matuleviciute R, Gileadi TE, Kramar E, Graham A, Garcia FG, Keiser A, Matheos DP, Cain JA, Pittman AM, Andreae LC, Fernandes C, Wood MA, Giese KP, Basson MA. The Intellectual Disability Risk Gene Kdm5b Regulates Long-Term Memory Consolidation in the Hippocampus. J Neurosci 2024; 44:e1544232024. [PMID: 38575342 PMCID: PMC11079963 DOI: 10.1523/jneurosci.1544-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/21/2024] [Accepted: 03/30/2024] [Indexed: 04/06/2024] Open
Abstract
The histone lysine demethylase KDM5B is implicated in recessive intellectual disability disorders, and heterozygous, protein-truncating variants in KDM5B are associated with reduced cognitive function in the population. The KDM5 family of lysine demethylases has developmental and homeostatic functions in the brain, some of which appear to be independent of lysine demethylase activity. To determine the functions of KDM5B in hippocampus-dependent learning and memory, we first studied male and female mice homozygous for a Kdm5b Δ ARID allele that lacks demethylase activity. Kdm5b Δ ARID/ Δ ARID mice exhibited hyperactivity and long-term memory deficits in hippocampus-dependent learning tasks. The expression of immediate early, activity-dependent genes was downregulated in these mice and hyperactivated upon a learning stimulus compared with wild-type (WT) mice. A number of other learning-associated genes were also significantly dysregulated in the Kdm5b Δ ARID/ Δ ARID hippocampus. Next, we knocked down Kdm5b specifically in the adult, WT mouse hippocampus with shRNA. Kdm5b knockdown resulted in spontaneous seizures, hyperactivity, and hippocampus-dependent long-term memory and long-term potentiation deficits. These findings identify KDM5B as a critical regulator of gene expression and synaptic plasticity in the adult hippocampus and suggest that at least some of the cognitive phenotypes associated with KDM5B gene variants are caused by direct effects on memory consolidation mechanisms.
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Affiliation(s)
- Leticia Pérez-Sisqués
- Centre for Craniofacial and Regenerative Biology, Guy's Hospital, King's College London, London SE1 9RT, United Kingdom
- MRC Centre for Neurodevelopmental Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, United Kingdom
| | - Shail U Bhatt
- Centre for Craniofacial and Regenerative Biology, Guy's Hospital, King's College London, London SE1 9RT, United Kingdom
| | - Rugile Matuleviciute
- MRC Centre for Neurodevelopmental Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, United Kingdom
| | - Talia E Gileadi
- Centre for Craniofacial and Regenerative Biology, Guy's Hospital, King's College London, London SE1 9RT, United Kingdom
| | - Eniko Kramar
- Department of Neurobiology and Behavior, School of Biological Sciences, University of California Irvine, Irvine, California, California 92697
| | - Andrew Graham
- Centre for Craniofacial and Regenerative Biology, Guy's Hospital, King's College London, London SE1 9RT, United Kingdom
| | - Franklin G Garcia
- Department of Neurobiology and Behavior, School of Biological Sciences, University of California Irvine, Irvine, California, California 92697
| | - Ashley Keiser
- Department of Neurobiology and Behavior, School of Biological Sciences, University of California Irvine, Irvine, California, California 92697
| | - Dina P Matheos
- Department of Neurobiology and Behavior, School of Biological Sciences, University of California Irvine, Irvine, California, California 92697
| | - James A Cain
- Centre for Craniofacial and Regenerative Biology, Guy's Hospital, King's College London, London SE1 9RT, United Kingdom
| | - Alan M Pittman
- St. George's University of London, London SW17 0RE, United Kingdom
| | - Laura C Andreae
- MRC Centre for Neurodevelopmental Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, United Kingdom
| | - Cathy Fernandes
- MRC Centre for Neurodevelopmental Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, United Kingdom
- Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AB, United Kingdom
| | - Marcelo A Wood
- Department of Neurobiology and Behavior, School of Biological Sciences, University of California Irvine, Irvine, California, California 92697
| | - K Peter Giese
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Maurice Wohl Clinical Neuroscience Institute, London SE5 9RT, United Kingdom
| | - M Albert Basson
- Centre for Craniofacial and Regenerative Biology, Guy's Hospital, King's College London, London SE1 9RT, United Kingdom
- MRC Centre for Neurodevelopmental Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, United Kingdom
- Department of Clinical and Biomedical Sciences, University of Exeter Medical School, Hatherly Laboratories, Exeter EX4 4PS, United Kingdom
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12
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Qin Y, Yang P, He W, Li D, Zeng L, Li J, Zhou T, Peng J, Cao L, Huang W. Novel histone post-translational modifications in Alzheimer's disease: current advances and implications. Clin Epigenetics 2024; 16:39. [PMID: 38461320 PMCID: PMC10924326 DOI: 10.1186/s13148-024-01650-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/21/2024] [Indexed: 03/11/2024] Open
Abstract
Alzheimer's disease (AD) has a complex pathogenesis, and multiple studies have indicated that histone post-translational modifications, especially acetylation, play a significant role in it. With the development of mass spectrometry and proteomics, an increasing number of novel HPTMs, including lactoylation, crotonylation, β-hydroxybutyrylation, 2-hydroxyisobutyrylation, succinylation, and malonylation, have been identified. These novel HPTMs closely link substance metabolism to gene regulation, and an increasing number of relevant studies on the relationship between novel HPTMs and AD have become available. This review summarizes the current advances and implications of novel HPTMs in AD, providing insight into the deeper pathogenesis of AD and the development of novel drugs.
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Affiliation(s)
- Yuanyuan Qin
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, 646000, Sichuan, China
| | - Ping Yang
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, 646000, Sichuan, China
| | - Wanhong He
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, 646000, Sichuan, China
| | - Dongze Li
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China
| | - Lisha Zeng
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China
| | - Junle Li
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, 646000, Sichuan, China
| | - Tingting Zhou
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, 646000, Sichuan, China
| | - Juan Peng
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Ling Cao
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China.
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China.
| | - Wei Huang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, 25 Taiping Rd, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China.
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
- Sichuan Clinical Research Center for Diabetes and Metabolic Diseases, Luzhou, 646000, Sichuan, China.
- Sichuan Clinical Research Center for Nephropathy, Luzhou, 646000, Sichuan, China.
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13
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Deb P, Chini A, Guha P, Rishi A, Bhan A, Brady B, Perrotti LI, Mandal SS. Dynamic regulation of BDNF gene expression by estradiol and lncRNA HOTAIR. Gene 2024; 897:148055. [PMID: 38043834 DOI: 10.1016/j.gene.2023.148055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/22/2023] [Accepted: 11/29/2023] [Indexed: 12/05/2023]
Abstract
Brain derived neurotrophic factor (BDNF) is a major neurotransmitter that controls growth and maintenance of neurons and its misregulation is linked to neurodegeneration and human diseases. Estradiol (E2) is well-known to regulate the process of differentiation and plasticity of hippocampal neurons. Here we examined the mechanisms of BDNF gene regulation under basal conditions and under stimuli such as E2. Our results demonstrated that BDNF expression is induced by E2 in vitro in HT22 cells (hippocampal neuronal cells) and in vivo (in ovariectomized mouse brain under E2-treatment). Using chromatin immunoprecipitation assay, we demonstrated that estrogen receptors (ERα, ERβ) were enriched at the BDNF promoter in presence of E2. Additionally, ER-coregulators (e.g., CBP/p300, MLL3), histone acetylation, H3K4-trimethylation, and RNA polymerase II levels were also elevated at the BDNF promoter in an E2-dependent manner. Additionally, under the basal conditions (in the absence of E2), the long noncoding RNA HOTAIR and its interacting partners PRC2 and LSD1 complexes binds to the promoter of BDNF and represses its expression. HOTAIR knockdown -relieves the repression resulting in elevation of BDNF expression. Further, levels of HOTAIR-interacting partners, EZH2 and LSD1 were reduced at the BDNF promoter upon HOTAIR-knockdown revealing that HOTAIR plays a regulatory role in BDNF gene expression by modulating promoter histone modifications. Additionally, we showed that E2 induced-BDNF expression is mediated by the displacement of silencing factors, EZH2 and LSD1 at BDNF promoter and subsequent recruitment of active transcription machinery. These results reveal the mechanisms of BDNF gene regulation under the basal condition and in presence of a positive regulator such as E2 in neuronal cells.
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Affiliation(s)
- Paromita Deb
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, United States
| | - Avisankar Chini
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, United States
| | - Prarthana Guha
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, United States
| | - Ashcharya Rishi
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, United States
| | - Arunoday Bhan
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, United States
| | - Blake Brady
- Department of Psychology, The University of Texas at Arlington, Arlington, TX 76019, United States
| | - Linda I Perrotti
- Department of Psychology, The University of Texas at Arlington, Arlington, TX 76019, United States
| | - Subhrangsu S Mandal
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, United States.
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14
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Navabpour S, Farrell K, Kincaid SE, Omar N, Musaus M, Lin Y, Xie H, Jarome TJ. Monoubiquitination of histone H2B is a crucial regulator of the transcriptome during memory formation. Learn Mem 2024; 31:a053912. [PMID: 38580378 PMCID: PMC11000578 DOI: 10.1101/lm.053912.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/07/2024] [Indexed: 04/07/2024]
Abstract
Posttranslational modification of histone proteins is critical for memory formation. Recently, we showed that monoubiquitination of histone H2B at lysine 120 (H2Bub) is critical for memory formation in the hippocampus. However, the transcriptome controlled by H2Bub remains unknown. Here, we found that fear conditioning in male rats increased or decreased the expression of 86 genes in the hippocampus but, surprisingly, siRNA-mediated knockdown of the H2Bub ligase, Rnf20, abolished changes in all but one of these genes. These findings suggest that monoubiquitination of histone H2B is a crucial regulator of the transcriptome during memory formation.
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Affiliation(s)
- Shaghayegh Navabpour
- Translational Biology, Medicine and Health Graduate Program, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Kayla Farrell
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Shannon E Kincaid
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Nour Omar
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Madeline Musaus
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Yu Lin
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia 24061, USA
| | - Hehuang Xie
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia 24061, USA
- Fralin Life Science Institute at Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Timothy J Jarome
- Translational Biology, Medicine and Health Graduate Program, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
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15
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Coda DM, Gräff J. From cellular to fear memory: An epigenetic toolbox to remember. Curr Opin Neurobiol 2024; 84:102829. [PMID: 38128422 DOI: 10.1016/j.conb.2023.102829] [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: 10/30/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023]
Abstract
Throughout development, the neuronal epigenome is highly sensitive to external stimuli, yet capable of safeguarding cellular memory for a lifetime. In the adult brain, memories of fearful experiences are rapidly instantiated, yet can last for decades, but the mechanisms underlying such longevity remain unknown. Here, we showcase how fear memory formation and storage - traditionally thought to exclusively affect synapse-based events - elicit profound and enduring changes to the chromatin, proposing epigenetic regulation as a plausible molecular template for mnemonic processes. By comparing these to mechanisms occurring in development and differentiation, we notice that an epigenetic machinery similar to that preserving cellular memories might be employed by brain cells so as to form, store, and retrieve behavioral memories.
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Affiliation(s)
- Davide Martino Coda
- Laboratory of Neuroepigenetics, Brain Mind Institute, School of Life Sciences, Ecole Polytechnique Federale Lausanne (EPFL), 1015, Lausanne, Switzerland.
| | - Johannes Gräff
- Laboratory of Neuroepigenetics, Brain Mind Institute, School of Life Sciences, Ecole Polytechnique Federale Lausanne (EPFL), 1015, Lausanne, Switzerland.
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16
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Gao J, Liu W, Liu J, Hao N, Pei J, Zhang L. The Role of Acetylation and Methylation of Rat Hippocampal Histone H3 in the Mechanism of Aluminum-Induced Neurotoxicity. Neurochem Res 2024; 49:441-452. [PMID: 37897558 DOI: 10.1007/s11064-023-04045-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/30/2023]
Abstract
Aluminum is a known neurotoxin and a major environmental contributor to neurodegenerative diseases such as Alzheimer's disease (AD). We uesd a subchronic aluminum chloride exposure model in offspring rats by continuously treating them with AlCl3 solution from the date of birth until day 90 in this research. Then evaluated the neurobehavioral changes in rats, observed the ultrastructural changes of hippocampal synapses and neurons, and examined the level of hippocampal acetylated histone H3 (H3ac), the activity and protein expression of hippocampal HAT1 and G9a, and the protein expression level of H3K9 dimethylation (H3K9me2). The findings demonstrated that aluminum-treated offspring rats had impaired learning and memory abilities as well as ultrastructural alterations in hippocampal synapses and neurons. The level of histone H3ac was decreased along with decreased protein expression and activity of HAT1, while level of H3K9me2 was increased along with increased protein expression and activity of G9a.
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Affiliation(s)
- Jie Gao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Wei Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Jiaqi Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Niping Hao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Jing Pei
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Lifeng Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China.
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17
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Muenstermann C, Clemens KJ. Epigenetic mechanisms of nicotine dependence. Neurosci Biobehav Rev 2024; 156:105505. [PMID: 38070842 DOI: 10.1016/j.neubiorev.2023.105505] [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: 08/31/2023] [Revised: 11/09/2023] [Accepted: 12/04/2023] [Indexed: 12/18/2023]
Abstract
Smoking continues to be a leading cause of preventable disease and death worldwide. Nicotine dependence generates a lifelong propensity towards cravings and relapse, presenting an ongoing challenge for the development of treatments. Accumulating evidence supports a role for epigenetics in the development and maintenance of addiction to many drugs of abuse, however, the involvement of epigenetics in nicotine dependence is less clear. Here we review evidence that nicotine interacts with epigenetic mechanisms to enable the maintenance of nicotine-seeking across time. Research across species suggests that nicotine increases permissive histone acetylation, decreases repressive histone methylation, and modulates levels of DNA methylation and noncoding RNA expression throughout the brain. These changes are linked to the promoter regions of genes critical for learning and memory, reward processing and addiction. Pharmacological manipulation of enzymes that catalyze core epigenetic modifications regulate nicotine reward and associative learning, demonstrating a functional role of epigenetic modifications in nicotine dependence. These findings are consistent with nicotine promoting an overall permissive chromatin state at genes important for learning, memory and reward. By exploring these links through next-generation sequencing technologies, epigenetics provides a promising avenue for future interventions to treat nicotine dependence.
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Affiliation(s)
| | - Kelly J Clemens
- School of Psychology, University of New South Wales, Sydney, Australia.
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18
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Ell MA, Schiele MA, Iovino N, Domschke K. Epigenetics of Fear, Anxiety and Stress - Focus on Histone Modifications. Curr Neuropharmacol 2024; 22:843-865. [PMID: 36946487 PMCID: PMC10845084 DOI: 10.2174/1570159x21666230322154158] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/21/2022] [Accepted: 11/28/2022] [Indexed: 03/23/2023] Open
Abstract
Fear-, anxiety- and stress-related disorders are among the most frequent mental disorders. Given substantial rates of insufficient treatment response and often a chronic course, a better understanding of the pathomechanisms of fear-, anxiety- and stress-related disorders is urgently warranted. Epigenetic mechanisms such as histone modifications - positioned at the interface between the biological and the environmental level in the complex pathogenesis of mental disorders - might be highly informative in this context. The current state of knowledge on histone modifications, chromatin-related pharmacology and animal models modified for genes involved in the histone-related epigenetic machinery will be reviewed with respect to fear-, anxiety- and stress-related states. Relevant studies, published until 30th June 2022, were identified using a multi-step systematic literature search of the Pub- Med and Web of Science databases. Animal studies point towards histone modifications (e.g., H3K4me3, H3K9me1/2/3, H3K27me2/3, H3K9ac, H3K14ac and H4K5ac) to be dynamically and mostly brain region-, task- and time-dependently altered on a genome-wide level or gene-specifically (e.g., Bdnf) in models of fear conditioning, retrieval and extinction, acute and (sub-)chronic stress. Singular and underpowered studies on histone modifications in human fear-, anxiety- or stress-related phenotypes are currently restricted to the phenotype of PTSD. Provided consistent validation in human phenotypes, epigenetic biomarkers might ultimately inform indicated preventive interventions as well as personalized treatment approaches, and could inspire future innovative pharmacological treatment options targeting the epigenetic machinery improving treatment response in fear-, anxiety- and stressrelated disorders.
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Affiliation(s)
- Marco A. Ell
- Department of Psychiatry and Psychotherapy, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Miriam A. Schiele
- Department of Psychiatry and Psychotherapy, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Nicola Iovino
- Department of Chromation Regulation, Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Katharina Domschke
- Department of Psychiatry and Psychotherapy, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
- Center for Basics in NeuroModulation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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19
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Koijam AS, Singh KD, Nameirakpam BS, Haobam R, Rajashekar Y. Drug addiction and treatment: An epigenetic perspective. Biomed Pharmacother 2024; 170:115951. [PMID: 38043446 DOI: 10.1016/j.biopha.2023.115951] [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: 09/16/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023] Open
Abstract
Drug addiction is a complex disease affected by numerous genetic and environmental factors. Brain regions in reward pathway, neuronal adaptations, genetic and epigenetic interactions causing transcriptional enhancement or repression of multiple genes induce different addiction phenotypes for varying duration. Addictive drug use causes epigenetic alterations and similarly epigenetic changes induced by environment can promote addiction. Epigenetic mechanisms include DNA methylation and post-translational modifications like methylation, acetylation, phosphorylation, ubiquitylation, sumoylation, dopaminylation and crotonylation of histones, and ADP-ribosylation. Non-coding RNAs also induce epigenetic changes. This review discusses these above areas and stresses the need for exploring epidrugs as a treatment alternative and adjunct, considering the limited success of current addiction treatment strategies. Epigenome editing complexes have lately been effective in eukaryotic systems. Targeted DNA cleavage techniques such as CRISPR-Cas9 system, CRISPR-dCas9 complexes, transcription activator-like effector nucleases (TALENs) and zinc-finger nucleases (ZFNs) have been exploited as targeted DNA recognition or anchoring platforms, fused with epigenetic writer or eraser proteins and delivered by transfection or transduction methods. Efficacy of epidrugs is seen in various neuropsychiatric conditions and initial results in addiction treatment involving model organisms are remarkable. Epidrugs present a promising alternative treatment for addiction.
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Affiliation(s)
- Arunkumar Singh Koijam
- Insect Bioresources Laboratory, Animal Bioresources Programme, Institute of Bioresources & Sustainable Development, Department of Biotechnology, Govt. of India, Takyelpat, Imphal 795001, Manipur, India
| | - Kabrambam Dasanta Singh
- Insect Bioresources Laboratory, Animal Bioresources Programme, Institute of Bioresources & Sustainable Development, Department of Biotechnology, Govt. of India, Takyelpat, Imphal 795001, Manipur, India
| | - Bunindro Singh Nameirakpam
- Insect Bioresources Laboratory, Animal Bioresources Programme, Institute of Bioresources & Sustainable Development, Department of Biotechnology, Govt. of India, Takyelpat, Imphal 795001, Manipur, India
| | - Reena Haobam
- Department of Biotechnology, Manipur University, Canchipur, Imphal 795003, Manipur, India
| | - Yallappa Rajashekar
- Insect Bioresources Laboratory, Animal Bioresources Programme, Institute of Bioresources & Sustainable Development, Department of Biotechnology, Govt. of India, Takyelpat, Imphal 795001, Manipur, India.
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20
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Keifer J. Synaptic Mechanisms of Delay Eyeblink Classical Conditioning: AMPAR Trafficking and Gene Regulation in an In Vitro Model. Mol Neurobiol 2023; 60:7088-7103. [PMID: 37531025 DOI: 10.1007/s12035-023-03528-z] [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: 03/14/2023] [Accepted: 07/20/2023] [Indexed: 08/03/2023]
Abstract
An in vitro model of delay eyeblink classical conditioning was developed to investigate synaptic plasticity mechanisms underlying acquisition of associative learning. This was achieved by replacing real stimuli, such as an airpuff and tone, with patterned stimulation of the cranial nerves using an isolated brainstem preparation from turtle. Here, our primary findings regarding cellular and molecular mechanisms for learning acquisition using this unique approach are reviewed. The neural correlate of the in vitro eyeblink response is a replica of the actual behavior, and features of conditioned responses (CRs) resemble those observed in behavioral studies. Importantly, it was shown that acquisition of CRs did not require the intact cerebellum, but the appropriate timing did. Studies of synaptic mechanisms indicate that conditioning involves two stages of AMPA receptor (AMPAR) trafficking. Initially, GluA1-containing AMPARs are targeted to synapses followed later by replacement by GluA4 subunits that support CR expression. This two-stage process is regulated by specific signal transduction cascades involving PKA and PKC and is guided by distinct protein chaperones. The expression of the brain-derived neurotrophic factor (BDNF) protein is central to AMPAR trafficking and conditioning. BDNF gene expression is regulated by coordinated epigenetic mechanisms involving DNA methylation/demethylation and chromatin modifications that control access of promoters to transcription factors. Finally, a hypothesis is proposed that learning genes like BDNF are poised by dual chromatin features that allow rapid activation or repression in response to environmental stimuli. These in vitro studies have advanced our understanding of the cellular and molecular mechanisms that underlie associative learning.
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Affiliation(s)
- Joyce Keifer
- Neuroscience Group, Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA.
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21
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Kim RK, Truby NL, Silva GM, Picone JA, Miller CS, Neve RL, Cui X, Hamilton PJ. Histone H1x in mouse ventral hippocampus correlates with, but does not cause behavioral adaptations to stress. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.06.565881. [PMID: 37986938 PMCID: PMC10659322 DOI: 10.1101/2023.11.06.565881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Prior research has identified differential protein expression levels of linker histone H1x within the ventral hippocampus (vHipp) of stress-susceptible versus stress-resilient mice. These mice are behaviorally classified based on their divergent responses to chronic social stress. Here, we sought to determine whether elevated vHipp H1x protein levels directly contribute to these diverging behavioral adaptations to stress. First, we demonstrate that stress-susceptible mice uniquely express elevated vHipp H1x protein levels following chronic stress. Given that linker histones coordinate heterochromatin compaction, we hypothesize that elevated levels of H1x in the vHipp may impede pro-resilience transcriptional adaptations and prevent development of the resilient phenotype following social stress. To test this, 8-10-week-old male C57BL/6J mice were randomly assigned to stressed and unstressed groups undergoing 10 days of chronic social defeat stress (CSDS) or single housing respectively. Following CSDS, mice were classified as susceptible versus resilient based on their social interaction behaviors. We synthesized a viral overexpression (OE) vector for H1x and transduced experimental mice with either H1x or control GFP within vHipp. Following viral delivery, we conducted social, anxiety-like, and memory-reliant behavior tests on distinct cohorts of mice. We found no behavioral adaptations following H1x OE compared to GFP controls in susceptible, resilient, or unstressed mice. In sum, although we confirm vHipp protein levels of H1x correlate with susceptibility to social stress, we observe no significant behavioral consequence of H1x OE. Thus, we conclude elevated levels of H1x are correlated with, but are not singularly sufficient to drive development of behavioral adaptations to stress.
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22
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Barbu MC, Viejo-Romero M, Thng G, Adams MJ, Marwick K, Grant SG, McIntosh AM, Lawrie SM, Whalley HC. Pathway-Based Polygenic Risk Scores for Schizophrenia and Associations With Reported Psychotic-like Experiences and Neuroimaging Phenotypes in the UK Biobank. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2023; 3:814-823. [PMID: 37881537 PMCID: PMC10593950 DOI: 10.1016/j.bpsgos.2023.03.004] [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: 10/17/2022] [Revised: 03/02/2023] [Accepted: 03/05/2023] [Indexed: 03/28/2023] Open
Abstract
Background Schizophrenia is a heritable psychiatric disorder with a polygenic architecture. Genome-wide association studies have reported that an increasing number of risk-associated variants and polygenic risk scores (PRSs) explain 17% of the variance in the disorder. Substantial heterogeneity exists in the effect of these variants, and aggregating them based on biologically relevant functions may provide mechanistic insight into the disorder. Methods Using the largest schizophrenia genome-wide association study conducted to date, we associated PRSs based on 5 gene sets previously found to contribute to schizophrenia pathophysiology-postsynaptic density of excitatory synapses, postsynaptic membrane, dendritic spine, axon, and histone H3-K4 methylation-along with respective whole-genome PRSs, with neuroimaging (n > 29,000) and reported psychotic-like experiences (n > 119,000) variables in healthy UK Biobank subjects. Results Several variables were significantly associated with the axon gene-set (psychotic-like communications, parahippocampal gyrus volume, fractional anisotropy thalamic radiations, and fractional anisotropy posterior thalamic radiations (β range -0.016 to 0.0916, false discovery rate-corrected p [pFDR] ≤ .05), postsynaptic density gene-set (psychotic-like experiences distress, global surface area, and cingulate lobe surface area [β range -0.014 to 0.0588, pFDR ≤ .05]), and histone gene set (entorhinal surface area: β = -0.016, pFDR = .035). From these, whole-genome PRSs were significantly associated with psychotic-like communications (β = 0.2218, pFDR = 1.34 × 10-7), distress (β = 0.1943, pFDR = 7.28 × 10-16), and fractional anisotropy thalamic radiations (β = -0.0143, pFDR = .036). Permutation analysis revealed that these associations were not due to chance. Conclusions Our results indicate that genetic variation in 3 gene sets relevant to schizophrenia may confer risk for the disorder through effects on previously implicated neuroimaging variables. Because associations were stronger overall for whole-genome PRSs, findings here highlight that selection of biologically relevant variants is not yet sufficient to address the heterogeneity of the disorder.
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Affiliation(s)
- Miruna C. Barbu
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
| | - Maria Viejo-Romero
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
| | - Gladi Thng
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
| | - Mark J. Adams
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
| | - Katie Marwick
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
| | - Seth G.N. Grant
- Genes to Cognition Program, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Andrew M. McIntosh
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
| | - Stephen M. Lawrie
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
| | - Heather C. Whalley
- Division of Psychiatry, The University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, Scotland, United Kingdom
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Tsukahara T, Kethireddy S, Bonefas K, Chen A, Sutton BLM, Dou Y, Iwase S, Sutton MA. Division of labor among H3K4 Methyltransferases Defines Distinct Facets of Homeostatic Plasticity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.20.558734. [PMID: 37790395 PMCID: PMC10542164 DOI: 10.1101/2023.09.20.558734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Heterozygous mutations in any of the six H3K4 methyltransferases (KMT2s) result in monogenic neurodevelopmental disorders, indicating nonredundant yet poorly understood roles of this enzyme family in neurodevelopment. Recent evidence suggests that histone methyltransferase activity may not be central to KMT2 functions; however, the enzymatic activity is evolutionarily conserved, implicating the presence of selective pressure to maintain the catalytic activity. Here, we show that H3K4 methylation is dynamically regulated during prolonged alteration of neuronal activity. The perturbation of H3K4me by the H3.3K4M mutant blocks synaptic scaling, a form of homeostatic plasticity that buffers the impact of prolonged reductions or increases in network activity. Unexpectedly, we found that the six individual enzymes are all necessary for synaptic scaling and that the roles of KMT2 enzymes segregate into evolutionary-defined subfamilies: KMT2A and KMT2B (fly-Trx homologs) for synaptic downscaling, KMT2C and KMT2D (Trr homologs) for upscaling, and KMT2F and KMT2G (dSet homologs) for both directions. Selective blocking of KMT2A enzymatic activity by a small molecule and targeted disruption of the enzymatic domain both blocked the synaptic downscaling and interfered with the activity-dependent transcriptional program. Furthermore, our study revealed specific phases of synaptic downscaling, i.e., induction and maintenance, in which KMT2A and KMT2B play distinct roles. These results suggest that mammalian brains have co-opted intricate H3K4me installation to achieve stability of the expanding neuronal circuits.
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Affiliation(s)
- Takao Tsukahara
- Michigan Neuroscience Institute, University of Michigan Medical School, Ann Arbor, Michigan
- Department of Human Genetics, University of Michigan, Ann Arbor, Michigan
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Saini Kethireddy
- College of Literature, Science, and the Arts, University of Michigan, Ann Arbor, Michigan
| | - Katherine Bonefas
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan
| | - Alex Chen
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan
| | - Brendan LM Sutton
- Department of Human Genetics, University of Michigan, Ann Arbor, Michigan
| | - Yali Dou
- Department of Medicine and Department of Biochemistry and Molecular Medicine, Keck School of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Shigeki Iwase
- Michigan Neuroscience Institute, University of Michigan Medical School, Ann Arbor, Michigan
- Department of Human Genetics, University of Michigan, Ann Arbor, Michigan
| | - Michael A. Sutton
- Michigan Neuroscience Institute, University of Michigan Medical School, Ann Arbor, Michigan
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, Michigan
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24
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Reddy D, Wickman JR, Ajit SK. Epigenetic regulation in opioid induced hyperalgesia. NEUROBIOLOGY OF PAIN (CAMBRIDGE, MASS.) 2023; 14:100146. [PMID: 38099284 PMCID: PMC10719581 DOI: 10.1016/j.ynpai.2023.100146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/14/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023]
Abstract
About 25 million American adults experience pain daily and one of the most commonly prescribed drugs to treat pain are opioids. Prolonged opioid usage and dose escalations can cause a paradoxical response where patients experience enhanced pain sensitivity. This opioid induced hyperalgesia (OIH) is a major hurdle when treating pain in the clinic because its underlying mechanisms are still not fully understood. OIH is also commonly overlooked and lacks guidelines to prevent its onset. Research on pain disorders and opioid usage have recognized potential epigenetic drivers of disease including DNA methylation, histone modifications, miRNA regulation, but their involvement in OIH has not been well studied. This article discusses epigenetic changes that may contribute to pathogenesis, with an emphasis on miRNA alterations in OIH. There is a crucial gap in knowledge including how multiple epigenetic modulators contribute to OIH. Elucidating the epigenetic changes underlying OIH and the crosstalk among these mechanisms could lead to the development of novel targets for the prevention and treatment of this painful phenomena.
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Affiliation(s)
- Deepa Reddy
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA
| | - Jason R. Wickman
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA
| | - Seena K. Ajit
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA
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25
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Abay-Nørgaard S, Tapia MC, Zeijdner M, Kim JH, Won KJ, Porse B, Salcini AE. Inter and transgenerational impact of H3K4 methylation in neuronal homeostasis. Life Sci Alliance 2023; 6:e202301970. [PMID: 37225426 PMCID: PMC10209521 DOI: 10.26508/lsa.202301970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 05/26/2023] Open
Abstract
Epigenetic marks and associated traits can be transmitted for one or more generations, phenomena known respectively as inter- or transgenerational epigenetic inheritance. It remains unknown if genetically and conditionally induced aberrant epigenetic states can influence the development of the nervous system across generations. Here, we show, using Caenorhabditis elegans as a model system, that alteration of H3K4me3 levels in the parental generation, caused by genetic manipulation or changes in parental conditions, has, respectively, trans- and intergenerational effects on H3K4 methylome, transcriptome, and nervous system development. Thus, our study reveals the relevance of H3K4me3 transmission and maintenance in preventing long-lasting deleterious effects in nervous system homeostasis.
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Affiliation(s)
- Steffen Abay-Nørgaard
- Biotech Research and Innovation Centre, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marta Cecylia Tapia
- Biotech Research and Innovation Centre, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- The Finsen Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Mandoh Zeijdner
- Biotech Research and Innovation Centre, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jeonghwan Henry Kim
- Biotech Research and Innovation Centre, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kyoung Jae Won
- Biotech Research and Innovation Centre, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Bo Porse
- Biotech Research and Innovation Centre, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- The Finsen Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Stem Cell Biology, DanStem, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anna Elisabetta Salcini
- Biotech Research and Innovation Centre, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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26
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Qu Y, Zhou N, Zhang X, Li Y, Xu XF. Chromatin Remodeling Factor SMARCA5 is Essential for Hippocampal Memory Maintenance via Metabolic Pathways in Mice. Neurosci Bull 2023; 39:1087-1104. [PMID: 36807260 PMCID: PMC10313638 DOI: 10.1007/s12264-023-01032-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/27/2022] [Indexed: 02/21/2023] Open
Abstract
Gene transcription and new protein synthesis regulated by epigenetics play integral roles in the formation of new memories. However, as an important part of epigenetics, the function of chromatin remodeling in learning and memory has been less studied. Here, we showed that SMARCA5 (SWI/SNF related, matrix-associated, actin-dependent regulator of chromatin, subfamily A, member 5), a critical chromatin remodeler, was responsible for hippocampus-dependent memory maintenance and neurogenesis. Using proteomics analysis, we found protein expression changes in the hippocampal dentate gyrus (DG) after the knockdown of SMARCA5 during contextual fear conditioning (CFC) memory maintenance in mice. Moreover, SMARCA5 was revealed to participate in CFC memory maintenance via modulating the proteins of metabolic pathways such as nucleoside diphosphate kinase-3 (NME3) and aminoacylase 1 (ACY1). This work is the first to describe the role of SMARCA5 in memory maintenance and to demonstrate the involvement of metabolic pathways regulated by SMARCA5 in learning and memory.
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Affiliation(s)
- Yu Qu
- Institute of Neuropsychiatric Diseases, Qingdao University, Qingdao, 266001, China
| | - Nan Zhou
- Department of Urology, Qilu Hospital of Shandong University, Jinan, 250012, China
| | - Xia Zhang
- Institute of Neuropsychiatric Diseases, Qingdao University, Qingdao, 266001, China
- University of Ottawa Institute of Mental Health Research at the Royal, Ottawa, K1Z7K4, Canada
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
- Key Laboratory of Modern Teaching Technology & College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Yan Li
- Department of Urology, Qilu Hospital of Shandong University, Jinan, 250012, China.
| | - Xu-Feng Xu
- Institute of Neuropsychiatric Diseases, Qingdao University, Qingdao, 266001, China.
- University of Ottawa Institute of Mental Health Research at the Royal, Ottawa, K1Z7K4, Canada.
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27
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Coelho A, Lima-Bastos S, Gobira P, Lisboa S. Endocannabinoid signaling and epigenetics modifications in the neurobiology of stress-related disorders. Neuronal Signal 2023; 7:NS20220034. [PMID: 37520658 PMCID: PMC10372471 DOI: 10.1042/ns20220034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 08/01/2023] Open
Abstract
Stress exposure is associated with psychiatric conditions, such as depression, anxiety, and post-traumatic stress disorder (PTSD). It is also a vulnerability factor to developing or reinstating substance use disorder. Stress causes several changes in the neuro-immune-endocrine axis, potentially resulting in prolonged dysfunction and diseases. Changes in several transmitters, including serotonin, dopamine, glutamate, gamma-aminobutyric acid (GABA), glucocorticoids, and cytokines, are associated with psychiatric disorders or behavioral alterations in preclinical studies. Complex and interacting mechanisms make it very difficult to understand the physiopathology of psychiatry conditions; therefore, studying regulatory mechanisms that impact these alterations is a good approach. In the last decades, the impact of stress on biology through epigenetic markers, which directly impact gene expression, is under intense investigation; these mechanisms are associated with behavioral alterations in animal models after stress or drug exposure, for example. The endocannabinoid (eCB) system modulates stress response, reward circuits, and other physiological functions, including hypothalamus-pituitary-adrenal axis activation and immune response. eCBs, for example, act retrogradely at presynaptic neurons, limiting the release of neurotransmitters, a mechanism implicated in the antidepressant and anxiolytic effects after stress. Epigenetic mechanisms can impact the expression of eCB system molecules, which in turn can regulate epigenetic mechanisms. This review will present evidence of how the eCB system and epigenetic mechanisms interact and the consequences of this interaction in modulating behavioral changes after stress exposure in preclinical studies or psychiatric conditions. Moreover, evidence that correlates the involvement of the eCB system and epigenetic mechanisms in drug abuse contexts will be discussed.
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Affiliation(s)
- Arthur A. Coelho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
| | - Sávio Lima-Bastos
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
| | - Pedro H. Gobira
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
| | - Sabrina F. Lisboa
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
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28
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Lalonde C, Sreetharan S, Murray A, Stoa L, Cybulski ME, Kennedy A, Landry N, Stillar A, Khurana S, Tharmalingam S, Wilson J, Khaper N, Lees SJ, Boreham D, Tai TC. Absence of Depressive and Anxious Behavior with Genetic Dysregulation in Adult C57Bl/6J Mice after Prenatal Exposure to Ionizing Radiation. Int J Mol Sci 2023; 24:ijms24108466. [PMID: 37239811 DOI: 10.3390/ijms24108466] [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: 04/03/2023] [Revised: 04/29/2023] [Accepted: 05/01/2023] [Indexed: 05/28/2023] Open
Abstract
The exposure of ionizing radiation during early gestation often leads to deleterious and even lethal effects; however, few extensive studies have been conducted on late gestational exposures. This research examined the behavior al effects of C57Bl/6J mouse offspring exposed to low dose ionizing gamma irradiation during the equivalent third trimester. Pregnant dams were randomly assigned to sham or exposed groups to either low dose or sublethal dose radiation (50, 300, or 1000 mGy) at gestational day 15. Adult offspring underwent a behavioral and genetic analysis after being raised under normal murine housing conditions. Our results indicate very little change in the behavioral tasks measuring general anxiety, social anxiety, and stress-management in animals exposed prenatally across the low dose radiation conditions. Quantitative real-time polymerase chain reactions were conducted on the cerebral cortex, hippocampus, and cerebellum of each animal; results indicate some dysregulation in markers of DNA damage, synaptic activity, reactive oxygen species (ROS) regulation, and methylation pathways in the offspring. Together, our results provide evidence in the C57Bl/6J strain, that exposure to sublethal dose radiation (<1000 mGy) during the last period of gestation leads to no observable changes in behaviour when assessed as adults, although some changes in gene expression were observed for specific brain regions. These results indicate that the level of oxidative stress occurring during late gestation for this mouse strain is not sufficient for a change in the assessed behavioral phenotype, but results in some modest dysregulation of the genetic profile of the brain.
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Affiliation(s)
- Christine Lalonde
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Shayenthiran Sreetharan
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
- Department of Biology, McMaster University, Hamilton, ON L8S4L8, Canada
| | - Alyssa Murray
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Lisa Stoa
- Department of Biology, McMaster University, Hamilton, ON L8S4L8, Canada
| | | | - Allison Kennedy
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Nicholas Landry
- Department of Psychology, Nipissing University, North Bay, ON P1B8L7, Canada
| | - Amy Stillar
- Department of Psychology, Nipissing University, North Bay, ON P1B8L7, Canada
| | - Sandhya Khurana
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Sujeenthar Tharmalingam
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Joanna Wilson
- Department of Biology, McMaster University, Hamilton, ON L8S4L8, Canada
| | - Neelam Khaper
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Simon J Lees
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Douglas Boreham
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - T C Tai
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
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29
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Bryzgalov LO, Korbolina EE, Merkulova TI. Exploring the Genetic Predisposition to Epigenetic Changes in Alzheimer's Disease. Int J Mol Sci 2023; 24:ijms24097955. [PMID: 37175659 PMCID: PMC10177989 DOI: 10.3390/ijms24097955] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/05/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Alzheimer's disease (AD) is a prevalent type of dementia in elderly populations with a significant genetic component. The accumulating evidence suggests that AD involves a reconfiguration of the epigenetic landscape, including DNA methylation, post-translational modification of histone proteins, and chromatin remodeling. Along with environmental factors, individual specific genetic features play a considerable role in the formation of epigenetic architecture. In this study, we attempt to identify the non-coding regulatory SNPs (rSNPs) able to affect the epigenetic mechanisms in AD. To this end, the multi-omics approach is used. The GEO (Gene Expression Omnibus) available data (GSE153875) for AD patients and controls are integrated to reveal the rSNPs that display allele-specific features in both ChIP-seq profiles of four histone modifications and RNA-seq. Furthermore, we analyze the presence of rSNPs in the promoters of genes reported to be differentially expressed between AD and the normal brain (AD-related genes) and involved in epigenetic regulation according to the EpiFactors database. We also searched for the rSNPs in the promoters of the genes coding for transcription regulators of the identified AD-related genes. These regulators were selected based on the corresponding ChIP-seq peaks (ENCODE) in the promoter regions of these genes. Finally, we formed a panel of rSNPs localized to the promoters of genes that contribute to the epigenetic landscape in AD and, thus, to the genetic predisposition for this disease.
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Affiliation(s)
- Leonid O Bryzgalov
- The Federal Research Center Institute of Cytology and Genetics, The Siberian Branch of the Russian Academy of Science, 10 Lavrentyeva Prospekt, 630090 Novosibirsk, Russia
- Vector-Best, 630117 Novosibirsk, Russia
| | - Elena E Korbolina
- The Federal Research Center Institute of Cytology and Genetics, The Siberian Branch of the Russian Academy of Science, 10 Lavrentyeva Prospekt, 630090 Novosibirsk, Russia
| | - Tatiana I Merkulova
- The Federal Research Center Institute of Cytology and Genetics, The Siberian Branch of the Russian Academy of Science, 10 Lavrentyeva Prospekt, 630090 Novosibirsk, Russia
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On making (and turning adaptive to) maladaptive aversive memories in laboratory rodents. Neurosci Biobehav Rev 2023; 147:105101. [PMID: 36804263 DOI: 10.1016/j.neubiorev.2023.105101] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/03/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023]
Abstract
Fear conditioning and avoidance tasks usually elicit adaptive aversive memories. Traumatic memories are more intense, generalized, inflexible, and resistant to attenuation via extinction- and reconsolidation-based strategies. Inducing and assessing these dysfunctional, maladaptive features in the laboratory are crucial to interrogating posttraumatic stress disorder's neurobiology and exploring innovative treatments. Here we analyze over 350 studies addressing this question in adult rats and mice. There is a growing interest in modeling several qualitative and quantitative memory changes by exposing already stressed animals to freezing- and avoidance-related tests or using a relatively high aversive training magnitude. Other options combine aversive/fearful tasks with post-acquisition or post-retrieval administration of one or more drugs provoking neurochemical or epigenetic alterations reported in the trauma aftermath. It is potentially instructive to integrate these procedures and incorporate the measurement of autonomic and endocrine parameters. Factors to consider when defining the organismic and procedural variables, partially neglected aspects (sex-dependent differences and recent vs. remote data comparison) and suggestions for future research (identifying reliable individual risk and treatment-response predictors) are discussed.
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Jiang Y, Zhou Y, Tan S, Xu C, Ma J. Role of posttranslational modifications in memory and cognitive impairments caused by neonatal sevoflurane exposure. Front Pharmacol 2023; 14:1113345. [PMID: 36992831 PMCID: PMC10040769 DOI: 10.3389/fphar.2023.1113345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/23/2023] [Indexed: 03/18/2023] Open
Abstract
With the advancement of technology, increasingly many newborns are receiving general anesthesia at a young age for surgery, other interventions, or clinical assessment. Anesthetics cause neurotoxicity and apoptosis of nerve cells, leading to memory and cognitive impairments. The most frequently used anesthetic in infants is sevoflurane; however, it has the potential to be neurotoxic. A single, short bout of sevoflurane exposure has little impact on cognitive function, but prolonged or recurrent exposure to general anesthetics can impair memory and cognitive function. However, the mechanisms underlying this association remain unknown. Posttranslational modifications (PTMs), which can be described roughly as the regulation of gene expression, protein activity, and protein function, have sparked enormous interest in neuroscience. Posttranslational modifications are a critical mechanism mediating anesthesia-induced long-term modifications in gene transcription and protein functional deficits in memory and cognition in children, according to a growing body of studies in recent years. Based on these recent findings, our paper reviews the effects of sevoflurane on memory loss and cognitive impairment, discusses how posttranslational modifications mechanisms can contribute to sevoflurane-induced neurotoxicity, and provides new insights into the prevention of sevoflurane-induced memory and cognitive impairments.
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Affiliation(s)
- Yongliang Jiang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Yue Zhou
- Department of Pharmacy, Xindu District People’s Hospital of Chengdu, Chengdu, China
| | - Siwen Tan
- Outpatient Department, West China Hospital of Sichuan University, Chengdu, China
| | - Chongxi Xu
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Junpeng Ma
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
- *Correspondence: Junpeng Ma,
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The Involvement of Post-Translational Modifications in Regulating the Development and Progression of Alzheimer's Disease. Mol Neurobiol 2023; 60:3617-3632. [PMID: 36877359 DOI: 10.1007/s12035-023-03277-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 02/16/2023] [Indexed: 03/07/2023]
Abstract
Post-translational modifications (PTMs) have been recently reported to be involved in the development and progression of Alzheimer's disease (AD). In detail, PTMs include phosphorylation, glycation, acetylation, sumoylation, ubiquitination, methylation, nitration, and truncation, which are associated with pathological functions of AD-related proteins, such as β-amyloid (Aβ), β-site APP-cleavage enzyme 1 (BACE1), and tau protein. In particular, the roles of aberrant PTMs in the trafficking, cleavage, and degradation of AD-associated proteins, leading to the cognitive decline of the disease, are summarized under AD conditions. By summarizing these research progress, the gaps will be filled between PMTs and AD, which will facilitate the discovery of potential biomarkers, leading to the establishment of novel clinical intervention methods against AD.
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Fu MP, Merrill SM, Sharma M, Gibson WT, Turvey SE, Kobor MS. Rare diseases of epigenetic origin: Challenges and opportunities. Front Genet 2023; 14:1113086. [PMID: 36814905 PMCID: PMC9939656 DOI: 10.3389/fgene.2023.1113086] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/24/2023] [Indexed: 02/09/2023] Open
Abstract
Rare diseases (RDs), more than 80% of which have a genetic origin, collectively affect approximately 350 million people worldwide. Progress in next-generation sequencing technology has both greatly accelerated the pace of discovery of novel RDs and provided more accurate means for their diagnosis. RDs that are driven by altered epigenetic regulation with an underlying genetic basis are referred to as rare diseases of epigenetic origin (RDEOs). These diseases pose unique challenges in research, as they often show complex genetic and clinical heterogeneity arising from unknown gene-disease mechanisms. Furthermore, multiple other factors, including cell type and developmental time point, can confound attempts to deconvolute the pathophysiology of these disorders. These challenges are further exacerbated by factors that contribute to epigenetic variability and the difficulty of collecting sufficient participant numbers in human studies. However, new molecular and bioinformatics techniques will provide insight into how these disorders manifest over time. This review highlights recent studies addressing these challenges with innovative solutions. Further research will elucidate the mechanisms of action underlying unique RDEOs and facilitate the discovery of treatments and diagnostic biomarkers for screening, thereby improving health trajectories and clinical outcomes of affected patients.
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Affiliation(s)
- Maggie P. Fu
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada,Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, BC, Canada,BC Children’s Hospital Research Institute, Vancouver, BC, Canada
| | - Sarah M. Merrill
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada,Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, BC, Canada,BC Children’s Hospital Research Institute, Vancouver, BC, Canada
| | - Mehul Sharma
- BC Children’s Hospital Research Institute, Vancouver, BC, Canada,Department of Pediatrics, Faculty of Medicine, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - William T. Gibson
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada,BC Children’s Hospital Research Institute, Vancouver, BC, Canada
| | - Stuart E. Turvey
- BC Children’s Hospital Research Institute, Vancouver, BC, Canada,Department of Pediatrics, Faculty of Medicine, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Michael S. Kobor
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada,Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, BC, Canada,BC Children’s Hospital Research Institute, Vancouver, BC, Canada,*Correspondence: Michael S. Kobor,
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Histone Modifications in Alzheimer's Disease. Genes (Basel) 2023; 14:genes14020347. [PMID: 36833274 PMCID: PMC9956192 DOI: 10.3390/genes14020347] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/11/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Since Late-onset Alzheimer's disease (LOAD) derives from a combination of genetic variants and environmental factors, epigenetic modifications have been predicted to play a role in the etiopathology of LOAD. Along with DNA methylation, histone modifications have been proposed as the main epigenetic modifications that contribute to the pathologic mechanisms of LOAD; however, little is known about how these mechanisms contribute to the disease's onset or progression. In this review, we highlighted the main histone modifications and their functional role, including histone acetylation, histone methylation, and histone phosphorylation, as well as changes in such histone modifications that occur in the aging process and mainly in Alzheimer's disease (AD). Furthermore, we pointed out the main epigenetic drugs tested for AD treatment, such as those based on histone deacetylase (HDAC) inhibitors. Finally, we remarked on the perspectives around the use of such epigenetics drugs for treating AD.
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Jiang D, Li T, Guo C, Tang TS, Liu H. Small molecule modulators of chromatin remodeling: from neurodevelopment to neurodegeneration. Cell Biosci 2023; 13:10. [PMID: 36647159 PMCID: PMC9841685 DOI: 10.1186/s13578-023-00953-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 01/03/2023] [Indexed: 01/18/2023] Open
Abstract
The dynamic changes in chromatin conformation alter the organization and structure of the genome and further regulate gene transcription. Basically, the chromatin structure is controlled by reversible, enzyme-catalyzed covalent modifications to chromatin components and by noncovalent ATP-dependent modifications via chromatin remodeling complexes, including switch/sucrose nonfermentable (SWI/SNF), inositol-requiring 80 (INO80), imitation switch (ISWI) and chromodomain-helicase DNA-binding protein (CHD) complexes. Recent studies have shown that chromatin remodeling is essential in different stages of postnatal and adult neurogenesis. Chromatin deregulation, which leads to defects in epigenetic gene regulation and further pathological gene expression programs, often causes a wide range of pathologies. This review first gives an overview of the regulatory mechanisms of chromatin remodeling. We then focus mainly on discussing the physiological functions of chromatin remodeling, particularly histone and DNA modifications and the four classes of ATP-dependent chromatin-remodeling enzymes, in the central and peripheral nervous systems under healthy and pathological conditions, that is, in neurodegenerative disorders. Finally, we provide an update on the development of potent and selective small molecule modulators targeting various chromatin-modifying proteins commonly associated with neurodegenerative diseases and their potential clinical applications.
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Affiliation(s)
- Dongfang Jiang
- grid.458458.00000 0004 1792 6416State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China ,grid.410726.60000 0004 1797 8419Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, 100101 China
| | - Tingting Li
- grid.458458.00000 0004 1792 6416State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China ,grid.410726.60000 0004 1797 8419Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, 100101 China
| | - Caixia Guo
- grid.9227.e0000000119573309Beijing Institute of Genomics, Chinese Academy of Sciences/China National Center for Bioinformation, Beijing, 100101 China ,grid.410726.60000 0004 1797 8419Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, 100101 China
| | - Tie-Shan Tang
- grid.458458.00000 0004 1792 6416State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China ,grid.512959.3Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, 100101 China ,grid.410726.60000 0004 1797 8419Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, 100101 China
| | - Hongmei Liu
- grid.458458.00000 0004 1792 6416State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China ,grid.512959.3Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, 100101 China
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Epigenetics in epilepsy. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 198:249-269. [DOI: 10.1016/bs.pmbts.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Dwivedi Y, Shelton RC. Genomics in Treatment Development. ADVANCES IN NEUROBIOLOGY 2023; 30:363-385. [PMID: 36928858 DOI: 10.1007/978-3-031-21054-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
The Human Genome Project mapped the 3 billion base pairs in the human genome, which ushered in a new generation of genomically focused treatment development. While this has been very successful in other areas, neuroscience has been largely devoid of such developments. This is in large part because there are very few neurological or mental health conditions that are related to single-gene variants. While developments in pharmacogenomics have been somewhat successful, the use of genetic information in practice has to do with drug metabolism and adverse reactions. Studies of drug metabolism related to genetic variations are an important part of drug development. However, outside of cancer biology, the actual translation of genomic information into novel therapies has been limited. Epigenetics, which relates in part to the effects of the environment on DNA, is a promising newer area of relevance to CNS disorders. The environment can induce chemical modifications of DNA (e.g., cytosine methylation), which can be induced by the environment and may represent either shorter- or longer-term changes. Given the importance of environmental influences on CNS disorders, epigenetics may identify important treatment targets in the future.
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Affiliation(s)
- Yogesh Dwivedi
- Department of Psychiatry and Behavioral Neurobiology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Richard C Shelton
- Department of Psychiatry and Behavioral Neurobiology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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Pathak H, Borchert A, Garaali S, Burkert A, Frieling H. BDNF exon IV promoter methylation and antidepressant action: a complex interplay. Clin Epigenetics 2022; 14:187. [PMID: 36572893 PMCID: PMC9793565 DOI: 10.1186/s13148-022-01415-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 12/19/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND BDNF exon IV promoter methylation is a potential biomarker for treatment response to antidepressants in MDD. We have previously shown CpG-87 methylation as a successful biomarker for the prediction of non-response to monoaminergic antidepressants like the SSRI Fluoxetine or the SNRI Venlafaxine. This study aimed to dissect the biological evidence and mechanisms for the functionality of CpG-87 methylation in a cell culture model. RESULTS We observed a significant interaction between methylation and antidepressant-mediated transcriptional activity in BDNF exon IV promoter. In addition, antidepressant treatment increased the promoter methylation in a concentration-dependent manner. Further single CpG methylation of -87 did not change the promoter activity, but methylation of CREB domain CpG-39 increased the transcriptional activity in an antidepressant-dependent manner. Interestingly, DNMT3a overexpression also increases the BDNF exon IV transcription and more so in Venlafaxine-treated cells. CONCLUSIONS The study strengthens the previously reported association between antidepressant treatment and BDNF exon IV promoter methylation as well as hints toward the mechanism of action. We argue that potential CpG methylation biomarkers display a complex synergy with the molecular changes at the neighboring CpG positions, thus highlighting the importance of epiallele analyses.
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Affiliation(s)
- Hansi Pathak
- grid.10423.340000 0000 9529 9877Laboratory for Molecular Neuroscience, Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School (MHH), 30625 Hannover, Germany
| | - Anton Borchert
- grid.10423.340000 0000 9529 9877Laboratory for Molecular Neuroscience, Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School (MHH), 30625 Hannover, Germany
| | - Sara Garaali
- grid.10423.340000 0000 9529 9877Laboratory for Molecular Neuroscience, Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School (MHH), 30625 Hannover, Germany
| | - Alexandra Burkert
- grid.10423.340000 0000 9529 9877Laboratory for Molecular Neuroscience, Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School (MHH), 30625 Hannover, Germany
| | - Helge Frieling
- grid.10423.340000 0000 9529 9877Laboratory for Molecular Neuroscience, Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School (MHH), 30625 Hannover, Germany
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Wang Y, Meng W, Liu Z, An Q, Hu X. Cognitive impairment in psychiatric diseases: Biomarkers of diagnosis, treatment, and prevention. Front Cell Neurosci 2022; 16:1046692. [DOI: 10.3389/fncel.2022.1046692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022] Open
Abstract
Psychiatric diseases, such as schizophrenia, bipolar disorder, autism spectrum disorder, and major depressive disorder, place a huge health burden on society. Cognitive impairment is one of the core characteristics of psychiatric disorders and a vital determinant of social function and disease recurrence in patients. This review thus aims to explore the underlying molecular mechanisms of cognitive impairment in major psychiatric disorders and identify valuable biomarkers for diagnosis, treatment and prevention of patients.
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Kelvington BA, Nickl-Jockschat T, Abel T. Neurobiological insights into twice-exceptionality: Circuits, cells, and molecules. Neurobiol Learn Mem 2022; 195:107684. [PMID: 36174887 PMCID: PMC9888516 DOI: 10.1016/j.nlm.2022.107684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 09/20/2022] [Accepted: 09/20/2022] [Indexed: 02/02/2023]
Abstract
Twice-exceptional learners face a unique set of challenges arising from the intersection of extraordinary talent and disability. Neurobiology research has the capacity to complement pedagogical research and provide support for twice-exceptional learners. Very few studies have attempted to specifically address the neurobiological underpinnings of twice-exceptionality. However, neurobiologists have built a broad base of knowledge in nervous system function spanning from the level of neural circuits to the molecular basis of behavior. It is known that distinct neural circuits mediate different neural functions, which suggests that 2e learning may result from enhancement in one circuit and disruption in another. Neural circuits are known to adapt and change in response to experience, a cellular process known as neuroplasticity. Plasticity is controlled by a bidirectional connection between the synapse, where neural signals are received, and the nucleus, where regulated gene expression can return to alter synaptic function. Complex molecular mechanisms compose this connection in distinct neural circuits, and genetic alterations in these mechanisms are associated with both memory enhancements and psychiatric disorder. Understanding the consequences of these changes at the molecular, cellular, and circuit levels will provide critical insights into the neurobiological bases of twice-exceptionality.
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Affiliation(s)
- Benjamin A Kelvington
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Thomas Nickl-Jockschat
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Ted Abel
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
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Mezheritskiy MI, Dyakonova VE. Direct and Inherited Epigenetic Changes in the Nervous System Caused by Intensive Locomotion: Possible Adaptive Significance. Russ J Dev Biol 2022. [DOI: 10.1134/s1062360422050058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Abstract
This review is devoted to the analysis of works that investigated the long-term effects of species-specific forms of intensive locomotion on the cognitive functions of animals and humans, which can be transmitted to the next generation. To date, the anxiolytic and cognitive-enhancing long-term effects of intensive locomotion have been demonstrated in humans, rodents, fish, insects, mollusks, and nematodes. In rodents, changes in the central nervous system caused by intense locomotion can be transmitted through the maternal and paternal line to the descendants of the first generation. These include reduced anxiety, improved spatial learning and memory, increased levels of brain neurotrophic factor and vascular endothelial growth factor in the hippocampus and frontal cortex. The shift of the balance of histone acetylation in the hippocampus of rodents towards hyperacetylation, and the balance of DNA methylation towards demethylation manifests itself both as a direct and as a first-generation inherited effect of motor activity. The question about the mechanisms that link locomotion with an increase in the plasticity of a genome in the brain of descendants remains poorly understood, and invertebrate model organisms can be an ideal object for its study. Currently, there is a lack of a theoretical model explaining why motor activity leads to long-term improvement of some cognitive functions that can be transmitted to the next generation and why such an influence could have appeared in evolution. The answer to these questions is not only of fundamental interest, but it is necessary for predicting therapeutic and possible side effects of motor activity in humans. In this regard, the article pays special attention to the review of ideas on the evolutionary aspects of the problem. We propose our own hypothesis, according to which the activating effect of intensive locomotion on the function of the nervous system could have been formed in evolution as a preadaptation to a possible entry into a new environment.
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Di Fede E, Grazioli P, Lettieri A, Parodi C, Castiglioni S, Taci E, Colombo EA, Ancona S, Priori A, Gervasini C, Massa V. Epigenetic disorders: Lessons from the animals–animal models in chromatinopathies. Front Cell Dev Biol 2022; 10:979512. [PMID: 36225316 PMCID: PMC9548571 DOI: 10.3389/fcell.2022.979512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Chromatinopathies are defined as genetic disorders caused by mutations in genes coding for protein involved in the chromatin state balance. So far 82 human conditions have been described belonging to this group of congenital disorders, sharing some molecular features and clinical signs. For almost all of these conditions, no specific treatment is available. For better understanding the molecular cascade caused by chromatin imbalance and for envisaging possible therapeutic strategies it is fundamental to combine clinical and basic research studies. To this end, animal modelling systems represent an invaluable tool to study chromatinopathies. In this review, we focused on available data in the literature of animal models mimicking the human genetic conditions. Importantly, affected organs and abnormalities are shared in the different animal models and most of these abnormalities are reported as clinical manifestation, underlying the parallelism between clinics and translational research.
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Affiliation(s)
- Elisabetta Di Fede
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Paolo Grazioli
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Antonella Lettieri
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Chiara Parodi
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Silvia Castiglioni
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Esi Taci
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Elisa Adele Colombo
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Silvia Ancona
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Alberto Priori
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
- “Aldo Ravelli” Center for Neurotechnology and Experimental Brain Therapeutics, Università Degli Studi di Milano, Milan, Italy
| | - Cristina Gervasini
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
- “Aldo Ravelli” Center for Neurotechnology and Experimental Brain Therapeutics, Università Degli Studi di Milano, Milan, Italy
| | - Valentina Massa
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
- “Aldo Ravelli” Center for Neurotechnology and Experimental Brain Therapeutics, Università Degli Studi di Milano, Milan, Italy
- *Correspondence: Valentina Massa,
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Individuals with Wiedemann-Steiner syndrome show nonverbal reasoning and visuospatial defects with relative verbal skill sparing. J Int Neuropsychol Soc 2022; 29:512-518. [PMID: 36062544 DOI: 10.1017/s1355617722000467] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Wiedemann-Steiner syndrome (WSS) is a rare Mendelian disorder of the epigenetic machinery caused by heterozygous pathogenic variants in KMT2A. Currently, the specific neurocognitive profile of this syndrome remains unknown. This case series provides insight into the cognitive phenotype of WSS. METHODS This study involves a retrospective medical chart review of 10 pediatric patients, each with a molecularly confirmed diagnosis of WSS who underwent clinical neuropsychological evaluation at an academic medical center. RESULTS The majority of patients performed in the below average to very low ranges in Nonverbal Reasoning, Visual/Spatial Perception, Visuoconstruction, Visual Memory, Attention, Working Memory and Math Computation skills. In contrast, over half the sample performed within normal limits on Receptive Vocabulary, Verbal Memory, and Word Reading. Wilcoxon signed rank test showed weaker Nonverbal versus Verbal Reasoning skills (p = .005). Most caregivers reported deficits in executive functioning, most notably in emotion regulation. CONCLUSIONS Nonverbal reasoning/memory, visuospatial/construction, attention, working memory, executive functioning, and math computation skills are areas of weakness among those with WSS. These findings overlap with research on Kabuki syndrome, which is caused by variants in KMT2D, and suggest disruption in the neurogenesis of the hippocampal formation may drive shared pathogenesis of the two syndromes.
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Farrell K, Auerbach A, Musaus M, Jarome TJ. The epigenetic role of proteasome subunit RPT6 during memory formation in female rats. Learn Mem 2022; 29:256-264. [PMID: 36206393 PMCID: PMC9488026 DOI: 10.1101/lm.053498.121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/10/2022] [Indexed: 11/24/2022]
Abstract
Reports of sex differences in the neurobiology of memory formation are becoming more prevalent. Despite this, much remains unknown about the role of sex in this process. We previously reported the first evidence of a novel epigenetic role for proteasome subunit RPT6 during memory formation in the hippocampus of male rodents whereby it associated with monoubiquitinated histone H2B (H2Bubi). Here, we used molecular, biochemical, and behavioral approaches to investigate whether RPT6 has a similar epigenetic role during memory formation in female rats. Following contextual fear conditioning, we found that RPT6 levels and DNA binding at regions coding for c-fos, the previously identified target of RPT6 in males, were unchanged in the hippocampus of females and that loss of RPT6 did not alter learning-induced increases in c-fos However, RPT6 was in complex with H2Bubi in the female hippocampus and this association increased with fear conditioning, suggesting that it could still retain an epigenetic function. Consistent with this, hippocampal siRNA-mediated knockdown of the RPT6-coding gene, Psmc5, impaired memory in females. These results suggest that while RPT6 does associate with epigenetic H2Bubi during memory formation in both males and females, it has sex-specific gene targets during the memory consolidation process.
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Affiliation(s)
- Kayla Farrell
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Aubrey Auerbach
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Madeline Musaus
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - Timothy J Jarome
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
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Maity S, Abbaspour R, Nahabedian D, Connor SA. Norepinephrine, beyond the Synapse: Coordinating Epigenetic Codes for Memory. Int J Mol Sci 2022; 23:ijms23179916. [PMID: 36077313 PMCID: PMC9456295 DOI: 10.3390/ijms23179916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/19/2022] [Accepted: 08/21/2022] [Indexed: 11/16/2022] Open
Abstract
The noradrenergic system is implicated in neuropathologies contributing to major disorders of the memory, including post-traumatic stress disorder and Alzheimer’s disease. Determining the impact of norepinephrine on cellular function and plasticity is thus essential for making inroads into our understanding of these brain conditions, while expanding our capacity for treating them. Norepinephrine is a neuromodulator within the mammalian central nervous system which plays important roles in cognition and associated synaptic plasticity. Specifically, norepinephrine regulates the formation of memory through the stimulation of β-ARs, increasing the dynamic range of synaptic modifiability. The mechanisms through which NE influences neural circuit function have been extended to the level of the epigenome. This review focuses on recent insights into how the noradrenergic recruitment of epigenetic modifications, including DNA methylation and post-translational modification of histones, contribute to homo- and heterosynaptic plasticity. These advances will be placed in the context of synaptic changes associated with memory formation and linked to brain disorders and neurotherapeutic applications.
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Affiliation(s)
- Sabyasachi Maity
- Department of Physiology, Neuroscience, and Behavioral Sciences, St. George’s University School of Medicine, True Blue FZ818, Grenada
| | - Raman Abbaspour
- Department of Biology, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada
| | - David Nahabedian
- The Center for Biomedical Visualization, Department of Anatomical Sciences, St. George’s University School of Medicine, True Blue FZ818, Grenada
| | - Steven A. Connor
- Department of Biology, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada
- Correspondence: ; Tel.: +1-(416)-736-2100 (ext. 33803)
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Alexander DC, Corman T, Mendoza M, Glass A, Belity T, Wu R, Campbell RR, Han J, Keiser AA, Winkler J, Wood MA, Kim T, Garcia BA, Cohen H, Mews P, Egervari G, Berger SL. Targeting acetyl-CoA metabolism attenuates the formation of fear memories through reduced activity-dependent histone acetylation. Proc Natl Acad Sci U S A 2022; 119:e2114758119. [PMID: 35921439 PMCID: PMC9371679 DOI: 10.1073/pnas.2114758119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Histone acetylation is a key component in the consolidation of long-term fear memories. Histone acetylation is fueled by acetyl-coenzyme A (acetyl-CoA), and recently, nuclear-localized metabolic enzymes that produce this metabolite have emerged as direct and local regulators of chromatin. In particular, acetyl-CoA synthetase 2 (ACSS2) mediates histone acetylation in the mouse hippocampus. However, whether ACSS2 regulates long-term fear memory remains to be determined. Here, we show that Acss2 knockout is well tolerated in mice, yet the Acss2-null mouse exhibits reduced acquisition of long-term fear memory. Loss of Acss2 leads to reductions in both histone acetylation and expression of critical learning and memory-related genes in the dorsal hippocampus, specifically following fear conditioning. Furthermore, systemic administration of blood-brain barrier-permeable Acss2 inhibitors during the consolidation window reduces fear-memory formation in mice and rats and reduces anxiety in a predator-scent stress paradigm. Our findings suggest that nuclear acetyl-CoA metabolism via ACSS2 plays a critical, previously unappreciated, role in the formation of fear memories.
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Affiliation(s)
- Desi C. Alexander
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- bDepartment of Genetics, University of Pennsylvania, Philadelphia, PA 19104
| | - Tanya Corman
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
| | - Mariel Mendoza
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- cDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Andrew Glass
- dDepartment of Chemistry, University of Pennsylvania, Philadelphia, PA 19104
| | - Tal Belity
- eDepartment of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Ranran Wu
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- cDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Rianne R. Campbell
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | - Joseph Han
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | - Ashley A. Keiser
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | - Jeffrey Winkler
- dDepartment of Chemistry, University of Pennsylvania, Philadelphia, PA 19104
| | - Marcelo A. Wood
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | | | - Benjamin A. Garcia
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- cDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Hagit Cohen
- eDepartment of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- hBeer-Sheva Mental Health Center, Ministry of Health, Anxiety and Stress Research Unit, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Philipp Mews
- iFishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
- 2To whom correspondence may be addressed. , , or
| | - Gabor Egervari
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- jDepartment of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
- 2To whom correspondence may be addressed. , , or
| | - Shelley L. Berger
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- bDepartment of Genetics, University of Pennsylvania, Philadelphia, PA 19104
- jDepartment of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
- kDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104
- 2To whom correspondence may be addressed. , , or
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Singh P, Paramanik V. Neuromodulating roles of estrogen and phytoestrogens in cognitive therapeutics through epigenetic modifications during aging. Front Aging Neurosci 2022; 14:945076. [PMID: 35992599 PMCID: PMC9381870 DOI: 10.3389/fnagi.2022.945076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
Estrogen (E2) plays important role in regulating hippocampal learning and memory. The decline of E2 after menopause affects learning and memory and increases the risk of neurodegenerative diseases like Alzheimer's disease (AD). Additionally, from the estrogen receptor (ER) mediated gene regulation; E2 also regulates gene expression at the transcriptional and posttranscriptional levels through epigenetic modifications. E2 recruits a number of proteins called co-regulators at the promoter region of genes. These co-regulators act as chromatin modifiers, alter DNA and histone modifications and regulate gene expression. Several studies show that E2 regulates learning and memory by altering chromatin at the promoters of memory-linked genes. Due to structural similarities with E2 and low side effects, phytoestrogens are now used as neuroprotective agents to recover learning and memory in animal models as well as human subjects during aging and different neurological disorders. Growing evidence suggests that apart from anti-oxidative and anti-inflammatory properties, phytoestrogens also act as epigenetic modifiers and regulate gene expression through epigenetic modifications. The epigenetic modifying properties of phytoestrogens are mostly studied in cancer cells but very little is known regarding the regulation of synaptic plasticity genes, learning and memory, and neurological disorders. In this article, we discuss the epigenetic modifying properties of E2 and the roles of phytoestrogens as epigenetic modifiers in the brain to recover and maintain cognitive functions.
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Jiang CC, Lin LS, Long S, Ke XY, Fukunaga K, Lu YM, Han F. Signalling pathways in autism spectrum disorder: mechanisms and therapeutic implications. Signal Transduct Target Ther 2022; 7:229. [PMID: 35817793 PMCID: PMC9273593 DOI: 10.1038/s41392-022-01081-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/19/2022] [Accepted: 06/23/2022] [Indexed: 02/06/2023] Open
Abstract
Autism spectrum disorder (ASD) is a prevalent and complex neurodevelopmental disorder which has strong genetic basis. Despite the rapidly rising incidence of autism, little is known about its aetiology, risk factors, and disease progression. There are currently neither validated biomarkers for diagnostic screening nor specific medication for autism. Over the last two decades, there have been remarkable advances in genetics, with hundreds of genes identified and validated as being associated with a high risk for autism. The convergence of neuroscience methods is becoming more widely recognized for its significance in elucidating the pathological mechanisms of autism. Efforts have been devoted to exploring the behavioural functions, key pathological mechanisms and potential treatments of autism. Here, as we highlight in this review, emerging evidence shows that signal transduction molecular events are involved in pathological processes such as transcription, translation, synaptic transmission, epigenetics and immunoinflammatory responses. This involvement has important implications for the discovery of precise molecular targets for autism. Moreover, we review recent insights into the mechanisms and clinical implications of signal transduction in autism from molecular, cellular, neural circuit, and neurobehavioural aspects. Finally, the challenges and future perspectives are discussed with regard to novel strategies predicated on the biological features of autism.
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Affiliation(s)
- Chen-Chen Jiang
- International Joint Laboratory for Drug Target of Critical Illnesses; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Li-Shan Lin
- Department of Physiology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Sen Long
- Department of Pharmacy, Hangzhou Seventh People's Hospital, Mental Health Center Zhejiang University School of Medicine, Hangzhou, 310013, China
| | - Xiao-Yan Ke
- Child Mental Health Research Center, Nanjing Brain Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Kohji Fukunaga
- Department of CNS Drug Innovation, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, 980-8578, Japan
| | - Ying-Mei Lu
- Department of Physiology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
| | - Feng Han
- International Joint Laboratory for Drug Target of Critical Illnesses; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China.
- Institute of Brain Science, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, 210029, China.
- Gusu School, Nanjing Medical University, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215002, China.
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Hattori Y, Matsumoto S, Morimoto S, Daini M, Toyofuku M, Matsuda S, Baba R, Murakami K, Iwatani M, Oki H, Iwasaki S, Matsumiya K, Tominari Y, Kimura H, Ito M. Design, synthesis, and structure–activity relationship of TAK-418 and its derivatives as a novel series of LSD1 inhibitors with lowered risk of hematological side effects. Eur J Med Chem 2022; 239:114522. [DOI: 10.1016/j.ejmech.2022.114522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/25/2022] [Accepted: 06/04/2022] [Indexed: 11/04/2022]
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The HDAC inhibitor CI-994 acts as a molecular memory aid by facilitating synaptic and intracellular communication after learning. Proc Natl Acad Sci U S A 2022; 119:e2116797119. [PMID: 35613054 PMCID: PMC9295763 DOI: 10.1073/pnas.2116797119] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Memory formation relies on a plethora of functions, including epigenetic modifications. Over recent years, multiple studies have indicated the potential of HDAC inhibitors (HDACis) as cognitive enhancers, but their mode of action is not fully understood. Here, we tested whether HDACi treatment improves memory formation via “cognitive epigenetic priming,” stipulating that HDACis—without inherent target specificity—specifically enhance naturally occurring plasticity processes. We found that combining HDACis with fear learning, but not either treatment alone, enhances synaptic plasticity as well as memory-promoting transcriptional signaling in the hippocampus, a brain area recruited by fear learning, but not in unrelated areas. These results lend experimental support to the theory of cognitive epigenetic priming. Long-term memory formation relies on synaptic plasticity, neuronal activity-dependent gene transcription, and epigenetic modifications. Multiple studies have shown that HDAC inhibitor (HDACi) treatments can enhance individual aspects of these processes and thereby act as putative cognitive enhancers. However, their mode of action is not fully understood. In particular, it is unclear how systemic application of HDACis, which are devoid of substrate specificity, can target pathways that promote memory formation. In this study, we explore the electrophysiological, transcriptional, and epigenetic responses that are induced by CI-994, a class I HDACi, combined with contextual fear conditioning (CFC) in mice. We show that CI-994–mediated improvement of memory formation is accompanied by enhanced long-term potentiation in the hippocampus, a brain region recruited by CFC, but not in the striatum, a brain region not primarily implicated in fear learning. Furthermore, using a combination of bulk and single-cell RNA-sequencing, we find that, when paired with CFC, HDACi treatment engages synaptic plasticity-promoting gene expression more strongly in the hippocampus, specifically in the dentate gyrus (DG). Finally, using chromatin immunoprecipitation-sequencing (ChIP-seq) of DG neurons, we show that the combined action of HDACi application and conditioning is required to elicit enhancer histone acetylation in pathways that underlie improved memory performance. Together, these results indicate that systemic HDACi administration amplifies brain region-specific processes that are naturally induced by learning.
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