1
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Liu Y, Yao Y, Fang W, Wang X, Lu W. Combinatorial therapy with sub-effective Ro25-6981 and ZL006 ameliorates depressive-like behavior in single or combined stressed male mice. Biochem Biophys Res Commun 2024; 730:150385. [PMID: 39002200 DOI: 10.1016/j.bbrc.2024.150385] [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: 05/02/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024]
Abstract
Major depression is a severe neuropsychiatric disorder that poses a significant challenge to health. However, development of an effective therapy for the disease has long been difficult. Here, we investigate the efficacy of a novel combinatorial treatment employing sub-effective doses of Ro25-6981, an antagonist targeting GluN2B-containing NMDA receptors, in conjunction with ZL006, an inhibitor of the PSD95/nNOS, on mouse models of depression. We employed social isolation, chronic restraint stress, or a combination of both to establish a depressed mouse model. Treatment with the drug combination reduced depressive-like behaviors without affecting locomotor activity in mice subjected to social isolation or chronic restraint stress. Furthermore, the combination therapy ameliorated depressive-like behaviors induced by combined stress of chronic restraint followed by social isolation. Mechanistic studies revealed that the combined treatment downregulated the hippocampal nitric oxide level. However, the therapeutic benefits of this combination were negated by the activation of NMDA receptors with a low dose of NMDA or by increasing nitric oxide levels with l-arginine. Moreover, the combinatorial treatment had negligible effects on object memory and contextual fear memory. Our data establish a combined therapy paradigm, providing a potential strategy targeting major depression.
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Affiliation(s)
- Yixiu Liu
- Department of Clinical Medicine, Hainan Medical University, Haikou, China
| | - Yilan Yao
- Department of Clinical Medicine, Hainan Medical University, Haikou, China
| | - Weiqing Fang
- Department of Pharmacy, School of Medicine, Women's Hospital, Zhejiang University, Hangzhou, China.
| | - Xuemeng Wang
- Department of the First Clinical Medicine, Hainan Medical University, Haikou, China
| | - Wen Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan, China.
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2
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Liu S, Zhang B, Guo H, Ding Z, Hou W, Hu X, Wang Y, Tan W, Zhou S. The antidepressant effects of protein arginine methyltransferase 2 involve neuroinflammation. Neurochem Int 2024; 176:105728. [PMID: 38561150 DOI: 10.1016/j.neuint.2024.105728] [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: 02/19/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
Protein arginine methyltransferase (PRMT) 2 catalyzes the methylation of arginine residues in histones. Depression is associated with histone methylation; however, more comprehensive research is needed on how PRMT2 regulates depression. The present study aimed to investigate the effects and possible mechanism(s) of PRMT2 overexpression on depression-like behavior induced by chronic unpredictable mild stress (CUMS) in rats, and whether lentivirus-mediated PRMT2 overexpression in the hippocampus suppresses depression-like behavior. Furthermore, the PRMT2 inhibitor MS023 was administered to the animals to investigate whether the antidepressant effect of PRMT2 overexpression could be reversed. Behavioral experiments were performed to detect depression-like behavior in rats. Western blotting was used to determine protein expression levels of PRMT2, histone H3R8 asymmetric dimethylation (H3R8me2a), inducible nitric oxide synthase (iNOS), and arginase 1 (Arg1) in rat hippocampal tissues. Hippocampal microglia and PRMT2 were stained using immunofluorescence techniques. Enzyme-linked immunosorbent assay was used to determine the levels of various inflammatory factors in rat hippocampal tissue. Results of analysis revealed that PRMT2 overexpression in the hippocampus exerted an antidepressant effect. PRMT2 overexpression in the hippocampus reduced the proportion of activated microglia in the hippocampus, upregulated Arg1 and H3R8me2a expression, and downregulated iNOS expression. PRMT2 overexpression in the hippocampus inhibited the release of pro-inflammatory factors and promoted the release of anti-inflammatory factors. In summary, PRMT2 overexpression in the hippocampus promoted the conversion of microglia from the M1 to M2 type, resulting in an antidepressant effect. These results suggest that PRMT2 may be a potential therapeutic target to prevent and treat depression.
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Affiliation(s)
- Shunfeng Liu
- College of Pharmacy, Guilin Medical College, Guilin, 541199, China; Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China.
| | - Bei Zhang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China; Basic Medical College, Guilin Medical College, Guilin, 541199, China.
| | - Haowei Guo
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China; Basic Medical College, Guilin Medical College, Guilin, 541199, China.
| | - Zhanghua Ding
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China; Basic Medical College, Guilin Medical College, Guilin, 541199, China.
| | - Wenhui Hou
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China; Basic Medical College, Guilin Medical College, Guilin, 541199, China.
| | - Xiaoli Hu
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China; Basic Medical College, Guilin Medical College, Guilin, 541199, China.
| | - Yuchu Wang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China; Basic Medical College, Guilin Medical College, Guilin, 541199, China.
| | - Wupeng Tan
- Department of Gynaecology, Maternal and Child Health Hospital of Hengyang, Hengyang, 421001, China.
| | - Shouhong Zhou
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical College, Guilin, 541199, China; Basic Medical College, Guilin Medical College, Guilin, 541199, China.
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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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4
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Chen S, Huang M, Xu D, Li M. Epigenetic regulation in epilepsy: A novel mechanism and therapeutic strategy for epilepsy. Neurochem Int 2024; 173:105657. [PMID: 38145842 DOI: 10.1016/j.neuint.2023.105657] [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: 08/23/2023] [Revised: 12/02/2023] [Accepted: 12/14/2023] [Indexed: 12/27/2023]
Abstract
Epilepsy is a common neurological disorder characterized by recurrent seizures with excessive and abnormal neuronal discharges. Epileptogenesis is usually involved in neuropathological processes such as ion channel dysfunction, neuronal injury, inflammatory response, synaptic plasticity, gliocyte proliferation and mossy fiber sprouting, currently the pathogenesis of epilepsy is not yet completely understood. A growing body of studies have shown that epigenetic regulation, such as histone modifications, DNA methylation, noncoding RNAs (ncRNAs), N6-methyladenosine (m6A) and restrictive element-1 silencing transcription factor/neuron-restrictive silencing factor (REST/NRSF) are also involved in epilepsy. Through epigenetic studies, we found that the synaptic dysfunction, nerve damage, cognitive dysfunction and brain development abnormalities are affected by epigenetic regulation of epilepsy-related genes in patients with epilepsy. However, the functional roles of epigenetics in pathogenesis and treatment of epilepsy are still to be explored. Therefore, profiling the array of genes that are epigenetically dysregulated in epileptogenesis is likely to advance our understanding of the mechanisms underlying the pathophysiology of epilepsy and may for the amelioration of these serious human conditions provide novel insight into therapeutic strategies and diagnostic biomarkers for epilepsy to improve serious human condition.
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Affiliation(s)
- Shuang Chen
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan, 430000, China
| | - Ming Huang
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan, 430000, China
| | - Da Xu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Man Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.
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5
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Flynn LT, Gao WJ. DNA methylation and the opposing NMDAR dysfunction in schizophrenia and major depression disorders: a converging model for the therapeutic effects of psychedelic compounds in the treatment of psychiatric illness. Mol Psychiatry 2023; 28:4553-4567. [PMID: 37679470 PMCID: PMC11034997 DOI: 10.1038/s41380-023-02235-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 09/09/2023]
Abstract
Psychedelic compounds are being increasingly explored as a potential therapeutic option for treating several psychiatric conditions, despite relatively little being known about their mechanism of action. One such possible mechanism, DNA methylation, is a process of epigenetic regulation that changes gene expression via chemical modification of nitrogenous bases. DNA methylation has been implicated in the pathophysiology of several psychiatric conditions, including schizophrenia (SZ) and major depressive disorder (MDD). In this review, we propose alterations to DNA methylation as a converging model for the therapeutic effects of psychedelic compounds, highlighting the N-methyl D-aspartate receptor (NMDAR), a crucial mediator of synaptic plasticity with known dysfunction in both diseases, as an example and anchoring point. We review the established evidence relating aberrant DNA methylation to NMDAR dysfunction in SZ and MDD and provide a model asserting that psychedelic substances may act through an epigenetic mechanism to provide therapeutic effects in the context of these disorders.
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Affiliation(s)
- L Taylor Flynn
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA, USA
- MD/PhD program, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Wen-Jun Gao
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA, USA.
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Wang J, Zhang W, Xu H, Ellenbroek B, Dai J, Wang L, Yan C, Wang W. The Changes of Histone Methylation Induced by Adolescent Social Stress Regulate the Resting-State Activity in mPFC. RESEARCH (WASHINGTON, D.C.) 2023; 6:0264. [PMID: 38434244 PMCID: PMC10907022 DOI: 10.34133/research.0264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 10/15/2023] [Indexed: 03/05/2024]
Abstract
Early-life stress can lead to sustained alterations in regional resting-state brain functions, but the underlying molecular mechanism remains unclear. Stress can also induce sustained changes in epigenetic modifications across brain regions, which are not limited to a few genes; rather, they often tend to produce global levels of change. The functional implication of these changes also remains to be elucidated. We hypothesize that global epigenetic changes may partly modulate the resting-state functions of brain regions to influence behavior. To test this hypothesis, we used an adolescent social stress (ASS) model in mice and examined the relationship between epigenetic modifications and regional resting-state brain activity using resting-state functional magnetic resonance imaging (rs-fMRI). The results showed that, compared to the control mice, the stressed mice showed increased anxiety and social avoidance behaviors and greater levels of dimethylation of histone H3 at lysine 9 (H3K9me2) in the medial prefrontal cortex (mPFC). In addition, the resting-state activity represented by the amplitude of low-frequency fluctuation (ALFF) was significantly lower in the mPFC of stressed mice. To verify the relationship of H3K9me2 and ALFF, the specific inhibition of H3Kme2 was performed by using the drug UNC0642, which reversed the anxiety behavior induced by ASS and significantly increase the ALFF value of mPFC in both normal and ASS animals. Our study is the first to report an association between histone modifications and rs-fMRI findings, providing a new perspective for understanding of the significance of regional brain epigenetic changes and a possible molecular explanation for rs-fMRI findings.
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Affiliation(s)
- Jiesi Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Wei Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Hang Xu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Bart Ellenbroek
- School of Psychology, Victoria University of Wellington, Kelburn, Wellington 6012, New Zealand
| | - Jiajie Dai
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Li Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Chaogan Yan
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Weiwen Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
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7
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Corley C, McElroy T, Sridharan B, Trujillo M, Simmons P, Kandel S, Sykes DJ, Robeson MS, Allen AR. Physiological and cognitive changes after treatments of cyclophosphamide, methotrexate, and fluorouracil: implications of the gut microbiome and depressive-like behavior. Front Neurosci 2023; 17:1212791. [PMID: 37869506 PMCID: PMC10587567 DOI: 10.3389/fnins.2023.1212791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 09/08/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction Chemotherapy-induced cognitive impairment colloquially referred to as chemobrain is a poorly understood phenomenon affecting a highly variable proportion of patients with breast cancer. Here we investigate the association between anxiety and despair-like behaviors in mice treated with cyclophosphamide, methotrexate, and fluorouracil (CMF) along with host histological, proteomic, gene expression, and gut microbial responses. Methods Forced swim and sociability tests were used to evaluate depression and despair-like behaviors. The tandem mass tag (TMT) proteomics approach was used to assess changes in the neural protein network of the amygdala and hippocampus. The composition of gut microbiota was assessed through 16S rRNA gene sequencing. Finally, quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to evaluate changes in intestinal gap junction markers. Results and discussion We observed that CMF induced social and despair-like behavior in mice 96 hours following treatment. Proteomic analysis identified changes in various proteins related to progressive neurological disease, working memory deficit, primary anxiety disorder, and gene expression revealing increases in NMDA and AMPA receptors in both the hippocampus and the amygdala because of CMF treatment. These changes finally, we observed immediate changes in the microbial population after chemotherapy treatment, with a notable abundance of Muribaculaceae and Romboutsia which may contribute to changes seen in the gut.
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Affiliation(s)
- Christa Corley
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Taylor McElroy
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Bhavana Sridharan
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Madison Trujillo
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Pilar Simmons
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Sangam Kandel
- Department of Bioinformatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | | | - Michael S. Robeson
- Department of Bioinformatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Antiño R. Allen
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
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8
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Yuan M, Yang B, Rothschild G, Mann JJ, Sanford LD, Tang X, Huang C, Wang C, Zhang W. Epigenetic regulation in major depression and other stress-related disorders: molecular mechanisms, clinical relevance and therapeutic potential. Signal Transduct Target Ther 2023; 8:309. [PMID: 37644009 PMCID: PMC10465587 DOI: 10.1038/s41392-023-01519-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 05/14/2023] [Accepted: 05/31/2023] [Indexed: 08/31/2023] Open
Abstract
Major depressive disorder (MDD) is a chronic, generally episodic and debilitating disease that affects an estimated 300 million people worldwide, but its pathogenesis is poorly understood. The heritability estimate of MDD is 30-40%, suggesting that genetics alone do not account for most of the risk of major depression. Another factor known to associate with MDD involves environmental stressors such as childhood adversity and recent life stress. Recent studies have emerged to show that the biological impact of environmental factors in MDD and other stress-related disorders is mediated by a variety of epigenetic modifications. These epigenetic modification alterations contribute to abnormal neuroendocrine responses, neuroplasticity impairment, neurotransmission and neuroglia dysfunction, which are involved in the pathophysiology of MDD. Furthermore, epigenetic marks have been associated with the diagnosis and treatment of MDD. The evaluation of epigenetic modifications holds promise for further understanding of the heterogeneous etiology and complex phenotypes of MDD, and may identify new therapeutic targets. Here, we review preclinical and clinical epigenetic findings, including DNA methylation, histone modification, noncoding RNA, RNA modification, and chromatin remodeling factor in MDD. In addition, we elaborate on the contribution of these epigenetic mechanisms to the pathological trait variability in depression and discuss how such mechanisms can be exploited for therapeutic purposes.
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Affiliation(s)
- Minlan Yuan
- Mental Health Center and Psychiatric Laboratory, the State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Biao Yang
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Gerson Rothschild
- Department of Microbiology and Immunology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, 10032, USA
| | - J John Mann
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY, 10032, USA
- Department of Radiology, Columbia University, New York, NY, 10032, USA
| | - Larry D Sanford
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Xiangdong Tang
- Sleep Medicine Center, Department of Respiratory and Critical Care Medicine, Mental Health Center, Translational Neuroscience Center, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Canhua Huang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chuang Wang
- Department of Pharmacology, and Provincial Key Laboratory of Pathophysiology in School of Medicine, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Wei Zhang
- Mental Health Center and Psychiatric Laboratory, the State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
- West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, 610041, China.
- Medical Big Data Center, Sichuan University, Chengdu, 610041, China.
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Hu L, Cheng Z, Wu L, Luo L, Pan P, Li S, Jia Q, Yang N, Xu B. Histone methyltransferase SETDB1 promotes osteogenic differentiation in osteoporosis by activating OTX2-mediated BMP-Smad and Wnt/β-catenin pathways. Hum Cell 2023:10.1007/s13577-023-00902-w. [PMID: 37074626 DOI: 10.1007/s13577-023-00902-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 03/24/2023] [Indexed: 04/20/2023]
Abstract
Osteogenic differentiation plays important roles in the pathogenesis of osteoporosis. In this study, we explored the regulatory mechanism of histone methyltransferase SET domain bifurcated 1 (SETDB1) underlying the osteogenic differentiation in osteoporosis. The common osteoporosis-related genes were retrieved from the GeneCards, CTD, and Phenolyzer databases. The enrichment analysis was conducted on the candidate osteoporosis-related genes using the PANTHER software, and the binding site between transcription factors and target genes predicted by hTFtarget. The bioinformatics analyses suggested 6 osteoporosis-related chromatin/chromatin binding protein or regulatory proteins (HDAC4, SIRT1, SETDB1, MECP2, CHD7, and DKC1). Normal and osteoporosis tissues were collected from osteoporosis patients to examine the expression of SETDB1. It was found that SETDB1 was poorly expressed in osteoporotic femoral tissues, indicating that SETDB1 might be involved in the development of osteoporosis. We induced SETDB1 overexpression/knockdown, orthodenticle homeobox 2 (OTX2) overexpression, activation of Wnt/β-catenin or BMP-Smad pathways alone or in combination in osteoblasts or ovariectomized mice. The data indicated that SETDB1 methylation regulated H3K9me3 in the OTX2 promoter region and inhibited the expression of OTX2. Besides, the BMP-Smad and Wnt/β-catenin pathways were inhibited by OTX2, thereby resulting in inhibited osteogenic differentiation. Animal experiments showed that overexpressed SETDB1 could promote the increase of calcium level and differentiation of femoral tissues. In conclusion, upregulation of SETDB1 promotes osteogenic differentiation by inhibiting OTX2 and activating the BMP-Smad and Wnt/β-catenin pathways in osteoporosis.
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Affiliation(s)
- Lianying Hu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People's Republic of China
- Department of Orthopedics, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, Anhui Province, People's Republic of China
| | - Zhen Cheng
- Clinical Laboratory, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, People's Republic of China
| | - Lunan Wu
- Department of Anesthesiology and Perioperative Medicine, The Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, The Second Hospital of Anhui Medical University, Hefei, 230601, People's Republic of China
| | - Liangliang Luo
- Department of Orthopedics, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, Anhui Province, People's Republic of China
| | - Ping Pan
- Department of Orthopedics, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, Anhui Province, People's Republic of China
| | - Shujin Li
- Clinical Laboratory, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, People's Republic of China
| | - Qiyu Jia
- Department of Orthopedics, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, Anhui Province, People's Republic of China.
| | - Ning Yang
- Department of Orthopedics, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, Anhui Province, People's Republic of China.
| | - Bin Xu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People's Republic of China.
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10
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Osorio N, Martineau M, Fortea M, Rouget C, Penalba V, Lee CJ, Boesmans W, Rolli-Derkinderen M, Patel AV, Mondielli G, Conrod S, Labat-Gest V, Papin A, Sasabe J, Sweedler JV, Vanden Berghe P, Delmas P, Mothet JP. d-Serine agonism of GluN1-GluN3 NMDA receptors regulates the activity of enteric neurons and coordinates gut motility. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.19.537136. [PMID: 37131687 PMCID: PMC10153202 DOI: 10.1101/2023.04.19.537136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The enteric nervous system (ENS) is a complex network of diverse molecularly defined classes of neurons embedded in the gastrointestinal wall and responsible for controlling the major functions of the gut. As in the central nervous system, the vast array of ENS neurons is interconnected by chemical synapses. Despite several studies reporting the expression of ionotropic glutamate receptors in the ENS, their roles in the gut remain elusive. Here, by using an array of immunohistochemistry, molecular profiling and functional assays, we uncover a new role for d-serine (d-Ser) and non-conventional GluN1-GluN3 N-methyl d-aspartate receptors (NMDARs) in regulating ENS functions. We demonstrate that d-Ser is produced by serine racemase (SR) expressed in enteric neurons. By using both in situ patch clamp recording and calcium imaging, we show that d-Ser alone acts as an excitatory neurotransmitter in the ENS independently of the conventional GluN1-GluN2 NMDARs. Instead, d-Ser directly gates the non-conventional GluN1-GluN3 NMDARs in enteric neurons from both mouse and guinea-pig. Pharmacological inhibition or potentiation of GluN1-GluN3 NMDARs had opposite effects on mouse colonic motor activities, while genetically driven loss of SR impairs gut transit and fluid content of pellet output. Our results demonstrate the existence of native GluN1-GluN3 NMDARs in enteric neurons and open new perspectives on the exploration of excitatory d-Ser receptors in gut function and diseases.
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Affiliation(s)
- Nancy Osorio
- Laboratoire de Neurosciences Cognitives (LNC), Aix-Marseille-Université, CNRS, UMR 7291, Marseille, France
- Centre de Recherche en Neurophysiologie et Neuroscience de Marseille, UMR 7286, CNRS, Université Aix-Marseille, Marseille, France
| | | | - Marina Fortea
- Laboratory for Enteric NeuroScience (LENS), Translational Research Center for Gastrointestinal Disorders (TARGID), University of Leuven, Leuven, Belgium
| | | | - Virginie Penalba
- Laboratoire de Neurosciences Cognitives (LNC), Aix-Marseille-Université, CNRS, UMR 7291, Marseille, France
- Centre de Recherche en Neurophysiologie et Neuroscience de Marseille, UMR 7286, CNRS, Université Aix-Marseille, Marseille, France
| | - Cindy J. Lee
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Werend Boesmans
- Laboratory for Enteric NeuroScience (LENS), Translational Research Center for Gastrointestinal Disorders (TARGID), University of Leuven, Leuven, Belgium
| | | | - Amit V. Patel
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Grégoire Mondielli
- Centre de Recherche en Neurophysiologie et Neuroscience de Marseille, UMR 7286, CNRS, Université Aix-Marseille, Marseille, France
| | - Sandrine Conrod
- Centre de Recherche en Neurophysiologie et Neuroscience de Marseille, UMR 7286, CNRS, Université Aix-Marseille, Marseille, France
| | | | - Amandine Papin
- Laboratoire de Neurosciences Cognitives (LNC), Aix-Marseille-Université, CNRS, UMR 7291, Marseille, France
| | - Jumpei Sasabe
- Department of Pharmacology, Keio University School of Medicine, Tokyo, Japan
| | - Jonathan V. Sweedler
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Pieter Vanden Berghe
- Laboratory for Enteric NeuroScience (LENS), Translational Research Center for Gastrointestinal Disorders (TARGID), University of Leuven, Leuven, Belgium
| | - Patrick Delmas
- Laboratoire de Neurosciences Cognitives (LNC), Aix-Marseille-Université, CNRS, UMR 7291, Marseille, France
- Centre de Recherche en Neurophysiologie et Neuroscience de Marseille, UMR 7286, CNRS, Université Aix-Marseille, Marseille, France
| | - Jean-Pierre Mothet
- Neurocentre Magendie, INSERM UMR U862, Bordeaux, France
- Centre de Recherche en Neurophysiologie et Neuroscience de Marseille, UMR 7286, CNRS, Université Aix-Marseille, Marseille, France
- Université Paris-Saclay, École Normale Supérieure Paris-Saclay, Centre National de la Recherche Scientifique, CentraleSupélec, LuMIn UMR9024, Gif-sur-Yvette 91190, France
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11
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Li J, Zheng S, Dong Y, Xu H, Zhu Y, Weng J, Sun D, Wang S, Xiao L, Jiang Y. Histone Methyltransferase SETDB1 Regulates the Development of Cortical Htr3a-Positive Interneurons and Mood Behaviors. Biol Psychiatry 2023; 93:279-290. [PMID: 36335068 DOI: 10.1016/j.biopsych.2022.08.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 08/02/2022] [Accepted: 08/22/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND GABAergic (gamma-aminobutyric acidergic) interneurons (INs) are highly heterogeneous, and Htr3a labels a subpopulation of cortical INs originating from the embryonic caudal ganglionic eminence. SETDB1 is one of the histone H3K9 methyltransferases and plays an essential role in the excitatory neurons, but its role in regulating cortical inhibitory INs remains largely unknown. METHODS In this study, we generated transgenic mice with conditional knockout of Setdb1 in neural progenitor cells (Setdb1-NS-cKO) and GABAergic neurons (Setdb1-Gad2-cKO). In addition, we performed RNA sequencing, ATAC-seq (assay for transposase-accessible chromatin with sequencing), chromatin immunoprecipitation sequencing, luciferase assay, chromatin conformation capture, and CRISPR (clustered regularly interspaced short palindromic repeats)/dCas9 to study the epigenetic mechanism underlying SETDB1-mediated transcriptional regulation of Htr3a. We also performed in situ hybridization and whole-cell recording to evaluate the functional properties of cortical Htr3a+ INs and behavioral tests for mood. RESULTS We detected significant upregulation of Htr3a expression in the embryonic ganglionic eminence of Setdb1-NS-cKO and identified the endogenous retroviral sequence RMER21B as a new target of SETDB1. RMER21B showed enhancer activity and formed distal chromatin interaction with the promoter of Htr3a. In addition, we observed an increased number and enhanced excitability of Htr3a+ INs in the knockout cortex. Moreover, Setdb1-Gad2-cKO mice exhibited anxiety- and depressive-like behaviors, which were partially reversed by a 5-HT3 receptor antagonist. CONCLUSIONS These findings suggest that SETDB1 represses Htr3a transcription via RMER21B-mediated distal chromatin interaction in the embryonic ganglionic eminence and regulates the development of cortical Htr3a+ INs and mood behaviors.
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Affiliation(s)
- Jiaqi Li
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Shenghui Zheng
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Yuhao Dong
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Hao Xu
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Yueyan Zhu
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Jie Weng
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Daijing Sun
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | | | - Lei Xiao
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Yan Jiang
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China.
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12
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Wu MS, Li XJ, Liu CY, Xu Q, Huang JQ, Gu S, Chen JX. Effects of Histone Modification in Major Depressive Disorder. Curr Neuropharmacol 2022; 20:1261-1277. [PMID: 34551699 PMCID: PMC9881074 DOI: 10.2174/1570159x19666210922150043] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/26/2021] [Accepted: 09/21/2021] [Indexed: 11/22/2022] Open
Abstract
Major depressive disorder (MDD) is a disease associated with many factors; specifically, environmental, genetic, psychological, and biological factors play critical roles. Recent studies have demonstrated that histone modification may occur in the human brain in response to severely stressful events, resulting in transcriptional changes and the development of MDD. In this review, we discuss five different histone modifications, histone methylation, histone acetylation, histone phosphorylation, histone crotonylation and histone β-hydroxybutyrylation, and their relationships with MDD. The utility of histone deacetylase (HDAC) inhibitors (HDACis) for MDD treatment is also discussed. As a large number of MDD patients in China have been treated with traditional Chineses medicine (TCM), we also discuss some TCM therapies, such as Xiaoyaosan (XYS), and their effects on histone modification. In summary, targeting histone modification may be a new strategy for elucidating the mechanism of MDD and a new direction for MDD treatment.
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Affiliation(s)
- Man-Si Wu
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China;
| | - Xiao-Juan Li
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China;
| | - Chen-Yue Liu
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China;
| | - Qiuyue Xu
- Department of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China;
| | - Jun-Qing Huang
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China;
| | - Simeng Gu
- Department of Psychology, Jiangsu University Medical School, Zhenjiang, China
| | - Jia-Xu Chen
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China; ,Address correspondence to this author at the Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China; E-mail:
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13
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Establishment of H3K9-methylated heterochromatin and its functions in tissue differentiation and maintenance. Nat Rev Mol Cell Biol 2022; 23:623-640. [PMID: 35562425 PMCID: PMC9099300 DOI: 10.1038/s41580-022-00483-w] [Citation(s) in RCA: 136] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2022] [Indexed: 12/14/2022]
Abstract
Heterochromatin is characterized by dimethylated or trimethylated histone H3 Lys9 (H3K9me2 or H3K9me3, respectively) and is found at transposable elements, satellite repeats and genes, where it ensures their transcriptional silencing. The histone methyltransferases (HMTs) that methylate H3K9 — in mammals Suppressor of variegation 3–9 homologue 1 (SUV39H1), SUV39H2, SET domain bifurcated 1 (SETDB1), SETDB2, G9A and G9A-like protein (GLP) — and the ‘readers’ of H3K9me2 or H3K9me3 are highly conserved and show considerable redundancy. Despite their redundancy, genetic ablation or mistargeting of an individual H3K9 methyltransferase can correlate with impaired cell differentiation, loss of tissue identity, premature aging and/or cancer. In this Review, we discuss recent advances in understanding the roles of the known H3K9-specific HMTs in ensuring transcriptional homeostasis during tissue differentiation in mammals. We examine the effects of H3K9-methylation-dependent gene repression in haematopoiesis, muscle differentiation and neurogenesis in mammals, and compare them with mechanistic insights obtained from the study of model organisms, notably Caenorhabditis elegans and Drosophila melanogaster. In all these organisms, H3K9-specific HMTs have both unique and redundant roles that ensure the maintenance of tissue integrity by restricting the binding of transcription factors to lineage-specific promoters and enhancer elements. Histone H3 Lys9 (H3K9)-methylated heterochromatin ensures transcriptional silencing of repetitive elements and genes, and its deregulation leads to impaired cell and tissue identity, premature aging and cancer. Recent studies in mammals clarified the roles H3K9-specific histone methyltransferases in ensuring transcriptional homeostasis during tissue differentiation.
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14
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Physical-Exercise-Induced Antioxidant Effects on the Brain and Skeletal Muscle. Antioxidants (Basel) 2022; 11:antiox11050826. [PMID: 35624690 PMCID: PMC9138070 DOI: 10.3390/antiox11050826] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 02/06/2023] Open
Abstract
Erythroid-related nuclear factor 2 (NRF2) and the antioxidant-responsive-elements (ARE) signaling pathway are the master regulators of cell antioxidant defenses, playing a key role in maintaining cellular homeostasis, a scenario in which proper mitochondrial function is essential. Increasing evidence indicates that the regular practice of physical exercise increases cellular antioxidant defenses by activating NRF2 signaling. This manuscript reviewed classic and ongoing research on the beneficial effects of exercise on the antioxidant system in both the brain and skeletal muscle.
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15
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Wang X, Guo Z, Mei D, Zhang Y, Zhao S, Hu S, Luo S, Wang Q, Gao C. The GluN2B-Trp373 NMDA Receptor Variant is Associated with Autism-, Epilepsy-Related Phenotypes and Reduces NMDA Receptor Currents in Rats. Neurochem Res 2022; 47:1588-1597. [PMID: 35181828 DOI: 10.1007/s11064-022-03554-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 11/30/2022]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition with core clinical features of abnormal communication, social interactions, atypical intelligence, and a higher risk of epilepsy. Prior work has suggested that de novo heterozygous mutations in the GRIN2B gene that encodes the GluN2B subunit of N-methyl-D-aspartic acid receptors are likely linked to ASD. However, whether GLuN2B-Trp373 mutation derived from autistic individuals causes ASD-like behavioral aberrations in rats remains to be determined. Here, through in utero electroporation and in vivo studies, we conducted a battery of tests to examine ASD-associated behaviors, cognitive impairments, and susceptibility to pentylenetetrazol-induced seizures. Whole-cell patch recording was utilized to determine whether the GluN2B-Trp373 mutation influences GluN2B-containing NMDA receptor currents in rats. Results show that, behaviorally, GLuN2B-Trp373 mutant rats exhibited core behavioral manifestations of ASD, such as social interaction deficits, increases in stereotyped behaviors and anxiety stereotyped/repetitive, impaired spatial memory, and enhanced risk of pentylenetetrazol-induced seizures, consistent with many of the hallmarks of low-functioning ASD in humans. Functionally, the GluN2B-Trp373 mutation results in reduced GluN2B surface protein expression together with decreased hippocampal NMDA receptor currents. Collectively, our findings highlight that GluN2B-Trp373 mutations can drive the manifestation of ASD-associated symptoms via the suppression of NMDA receptor currents.
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Affiliation(s)
- Xiaona Wang
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Neurodevelopment Engineering Research Center for Children, Children's Hospital Affiliated to Zhengzhou University, 33 Longhu Outer Circle Dong Road, Zhengzhou, 450018, Henan, China.
| | - Zhiyue Guo
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Daoqi Mei
- Department of Neurology, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Yaodong Zhang
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Neurodevelopment Engineering Research Center for Children, Children's Hospital Affiliated to Zhengzhou University, 33 Longhu Outer Circle Dong Road, Zhengzhou, 450018, Henan, China
| | - Shuai Zhao
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Neurodevelopment Engineering Research Center for Children, Children's Hospital Affiliated to Zhengzhou University, 33 Longhu Outer Circle Dong Road, Zhengzhou, 450018, Henan, China
| | - Shunan Hu
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Neurodevelopment Engineering Research Center for Children, Children's Hospital Affiliated to Zhengzhou University, 33 Longhu Outer Circle Dong Road, Zhengzhou, 450018, Henan, China
| | - Shuying Luo
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Neurodevelopment Engineering Research Center for Children, Children's Hospital Affiliated to Zhengzhou University, 33 Longhu Outer Circle Dong Road, Zhengzhou, 450018, Henan, China
| | - Qi Wang
- Department of Histology and Embryology, School of Basic Medicine, Guizhou Medical University, Dongqing Road, Guiyang, 550025, Guizhou, China.
| | - Chao Gao
- Department of Rehabilitation, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China.
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16
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Chen S, Xu D, Fan L, Fang Z, Wang X, Li M. Roles of N-Methyl-D-Aspartate Receptors (NMDARs) in Epilepsy. Front Mol Neurosci 2022; 14:797253. [PMID: 35069111 PMCID: PMC8780133 DOI: 10.3389/fnmol.2021.797253] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Epilepsy is one of the most common neurological disorders characterized by recurrent seizures. The mechanism of epilepsy remains unclear and previous studies suggest that N-methyl-D-aspartate receptors (NMDARs) play an important role in abnormal discharges, nerve conduction, neuron injury and inflammation, thereby they may participate in epileptogenesis. NMDARs belong to a family of ionotropic glutamate receptors that play essential roles in excitatory neurotransmission and synaptic plasticity in the mammalian CNS. Despite numerous studies focusing on the role of NMDAR in epilepsy, the relationship appeared to be elusive. In this article, we reviewed the regulation of NMDAR and possible mechanisms of NMDAR in epilepsy and in respect of onset, development, and treatment, trying to provide more evidence for future studies.
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Affiliation(s)
| | | | | | | | | | - Man Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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17
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Markouli M, Strepkos D, Piperi C. Structure, Activity and Function of the SETDB1 Protein Methyltransferase. Life (Basel) 2021; 11:life11080817. [PMID: 34440561 PMCID: PMC8397983 DOI: 10.3390/life11080817] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 12/18/2022] Open
Abstract
The SET Domain Bifurcated Histone Lysine Methyltransferase 1 (SETDB1) is a prominent member of the Suppressor of Variegation 3–9 (SUV39)-related protein lysine methyltransferases (PKMTs), comprising three isoforms that differ in length and domain composition. SETDB1 is widely expressed in human tissues, methylating Histone 3 lysine 9 (H3K9) residues, promoting chromatin compaction and exerting negative regulation on gene expression. SETDB1 has a central role in normal physiology and nervous system development, having been implicated in the regulation of cell cycle progression, inactivation of the X chromosome, immune cells function, expression of retroelements and formation of promyelocytic leukemia (PML) nuclear bodies (NB). SETDB1 has been frequently deregulated in carcinogenesis, being implicated in the pathogenesis of gliomas, melanomas, as well as in lung, breast, gastrointestinal and ovarian tumors, where it mainly exerts an oncogenic role. Aberrant activity of SETDB1 has also been implicated in several neuropsychiatric, cardiovascular and gastrointestinal diseases, including schizophrenia, Huntington’s disease, congenital heart defects and inflammatory bowel disease. Herein, we provide an update on the unique structural and biochemical features of SETDB1 that contribute to its regulation, as well as its molecular and cellular impact in normal physiology and disease with potential therapeutic options.
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18
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Afridi R, Suk K. Neuroinflammatory Basis of Depression: Learning From Experimental Models. Front Cell Neurosci 2021; 15:691067. [PMID: 34276311 PMCID: PMC8283257 DOI: 10.3389/fncel.2021.691067] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/08/2021] [Indexed: 12/17/2022] Open
Abstract
The neuroinflammatory basis of depression encompasses the detrimental role of otherwise supportive non-neuronal cells and neuroinflammation in hampering neuronal function, leading to depressive behavior. Animals subjected to different stress paradigms show glial cell activation and a surge in proinflammatory cytokines in various brain regions. The concept of sterile inflammation observed in animal models of depression has intrigued many researchers to determine the possible triggers of central immune cell activation. Notably, microglial activation and subsequent phenotypic polarization in depression have been strongly advocated by the wealth of recent preclinical studies; however, findings from human studies have shown contradictory results. Despite intensive investigation, many research gaps still exist to elucidate the molecular mechanisms of neuroinflammatory cascades underlying the pathophysiology of depression. In this mini-review, recent progress in understanding neuroinflammatory mechanisms in light of experimental models of depression will be thoroughly discussed. The challenges of mirroring depression in animal and in vitro models will also be highlighted. Furthermore, prospects of targeting neuroinflammation to treat depressive disorder will be covered.
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Affiliation(s)
- Ruqayya Afridi
- BK21 Plus KNU Biomedical Convergence Program, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Kyoungho Suk
- BK21 Plus KNU Biomedical Convergence Program, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, South Korea.,Brain Science and Engineering Institute, Kyungpook National University, Daegu, South Korea
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19
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Chen S, Zhang K, Zhang B, Jiang M, Zhang X, Guo Y, Yu Y, Qin T, Li H, Chen Q, Cai Z, Luo S, Huang Y, Hu J, Mo W. Temporarily Epigenetic Repression in Bergmann Glia Regulates the Migration of Granule Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003164. [PMID: 34026436 PMCID: PMC8132163 DOI: 10.1002/advs.202003164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Forming tight interaction with both Purkinje and granule cells (GCs), Bergmann glia (BG) are essential for cerebellar morphogenesis and neuronal homeostasis. However, how BG act in this process is unclear without comprehensive transcriptome landscape of BG. Here, high temporal-resolution investigation of transcriptomes with FACS-sorted BG revealed the dynamic expression of genes within given functions and pathways enabled BG to assist neural migration and construct neuron-glia network. It is found that the peak time of GCs migration (P7-10) strikingly coincides with the downregulation of extracellular matrix (ECM) related genes, and the disruption of which by Setdb1 ablation at P7-10 in BG leads to significant migration defect of GCs emphasizing the criticality of Nfix-Setdb1 mediated H3K9me3 repressive complex for the precise regulation of GCs migration in vivo. Thus, BG's transcriptomic landscapes offer an insight into the mechanism by which BG are in depth integrated in cerebellar neural network.
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Affiliation(s)
- Shaoxuan Chen
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
- The Department of NeuroscienceSchool of MedicineXiamen UniversityXiamen361102China
| | - Kunkun Zhang
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
- The Department of NeuroscienceSchool of MedicineXiamen UniversityXiamen361102China
| | - Boxin Zhang
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
| | - Mengyun Jiang
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
| | - Xue Zhang
- Xiang'an Hospital of Xiamen UniversitySchool of MedicineXiamen361102China
| | - Yi Guo
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
| | - Yingying Yu
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
- National Institute for Data Science in Health and MedicineXiamen UniversityXiamen361102China
| | - Tianyu Qin
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
- National Institute for Data Science in Health and MedicineXiamen UniversityXiamen361102China
| | - Hongda Li
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
| | - Qiang Chen
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
| | - Zhiyu Cai
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
| | - Site Luo
- Key Laboratory of Ministry of Education for Coast and Wetland EcosystemsCollege of the Environment and EcologyXiamen UniversityXiamen361102China
| | - Yi Huang
- Department of Clinical LaboratoryFujian Provincial HospitalFuzhou350001China
- Provincial Clinical CollegeFujian Medical UniversityFuzhou350001China
| | - Jin Hu
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
| | - Wei Mo
- State Key Laboratory of Cellular Stress BiologyThe First Affiliated Hospital of Xiamen UniversitySchool of Life SciencesXiamen UniversityXiamen361102China
- The Department of NeuroscienceSchool of MedicineXiamen UniversityXiamen361102China
- National Institute for Data Science in Health and MedicineXiamen UniversityXiamen361102China
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20
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Mossink B, Negwer M, Schubert D, Nadif Kasri N. The emerging role of chromatin remodelers in neurodevelopmental disorders: a developmental perspective. Cell Mol Life Sci 2021; 78:2517-2563. [PMID: 33263776 PMCID: PMC8004494 DOI: 10.1007/s00018-020-03714-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 11/04/2020] [Accepted: 11/16/2020] [Indexed: 12/13/2022]
Abstract
Neurodevelopmental disorders (NDDs), including intellectual disability (ID) and autism spectrum disorders (ASD), are a large group of disorders in which early insults during brain development result in a wide and heterogeneous spectrum of clinical diagnoses. Mutations in genes coding for chromatin remodelers are overrepresented in NDD cohorts, pointing towards epigenetics as a convergent pathogenic pathway between these disorders. In this review we detail the role of NDD-associated chromatin remodelers during the developmental continuum of progenitor expansion, differentiation, cell-type specification, migration and maturation. We discuss how defects in chromatin remodelling during these early developmental time points compound over time and result in impaired brain circuit establishment. In particular, we focus on their role in the three largest cell populations: glutamatergic neurons, GABAergic neurons, and glia cells. An in-depth understanding of the spatiotemporal role of chromatin remodelers during neurodevelopment can contribute to the identification of molecular targets for treatment strategies.
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Affiliation(s)
- Britt Mossink
- Department of Human Genetics, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Geert Grooteplein 10, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, 6500 HB, Nijmegen, The Netherlands
| | - Moritz Negwer
- Department of Human Genetics, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Geert Grooteplein 10, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, 6500 HB, Nijmegen, The Netherlands
| | - Dirk Schubert
- Department of Cognitive Neuroscience, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, 6500 HB, Nijmegen, The Netherlands
| | - Nael Nadif Kasri
- Department of Human Genetics, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Geert Grooteplein 10, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
- Department of Cognitive Neuroscience, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, 6500 HB, Nijmegen, The Netherlands.
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Strepkos D, Markouli M, Klonou A, Papavassiliou AG, Piperi C. Histone Methyltransferase SETDB1: A Common Denominator of Tumorigenesis with Therapeutic Potential. Cancer Res 2021; 81:525-534. [PMID: 33115801 DOI: 10.1158/0008-5472.can-20-2906] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/06/2020] [Accepted: 10/23/2020] [Indexed: 11/16/2022]
Abstract
Epigenetic regulation of gene expression has been ultimately linked to cancer development, with posttranslational histone modifications representing attractive targets for disease monitoring and therapy. Emerging data have demonstrated histone lysine (K) methylation by methyltransferase SETDB1 as a common denominator of gene regulation in several cancer types. SETDB1 reversibly catalyzes the di- and trimethylation of histone 3 (H3) K9 in euchromatic regions of chromosomes, inhibiting gene transcription within these regions and promoting a switch from euchromatic to heterochromatic states. Recent studies have implicated aberrant SETDB1 activity in the development of various types of cancers, including brain, head and neck, lung, breast, gastrointestinal, ovarian, endometrial and prostate cancer, mesothelioma, melanoma, leukemias, and osteosarcoma. Although its role has not been fully elucidated in every case, most data point toward a pro-oncogenic potential of SETDB1 via the downregulation of critical tumor-suppressive genes. Less commonly, however, SETDB1 can also acquire a tumor-suppressive role, depending on cancer type and stage. Here we provide an updated overview of the cellular and molecular effects underlying SETDB1 activity in cancer development and progression along with current targeting strategies in different cancer types, with promising effects either as a standalone therapy or in conjunction with other therapeutic agents.
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Affiliation(s)
- Dimitrios Strepkos
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Mariam Markouli
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexia Klonou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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22
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Abstract
This review explores how different classes of drugs, including those with therapeutic and abuse potential, alter brain functions and behavior via the epigenome. Epigenetics, in its simplest interpretation, is the study of the regulation of a genes' transcriptional potential. The epigenome is established during development but is malleable throughout life by a wide variety of drugs, with both clinical utility and abuse potential. An epigenetic effect can be central to the drug's therapeutic or abuse potential, or it can be independent from the main effect but nevertheless produce beneficial or adverse side effects. Here, I discuss the various epigenetic effects of main pharmacological drug classes, including antidepressants, antiepileptics, and drugs of abuse.
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Affiliation(s)
- Miklos Toth
- Department of Pharmacology, Weill Cornell Medical College, New York, NY 10065, USA;
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23
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Markouli M, Strepkos D, Chlamydas S, Piperi C. Histone lysine methyltransferase SETDB1 as a novel target for central nervous system diseases. Prog Neurobiol 2020; 200:101968. [PMID: 33279625 DOI: 10.1016/j.pneurobio.2020.101968] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/31/2020] [Accepted: 11/29/2020] [Indexed: 12/14/2022]
Abstract
Epigenetic changes that regulate chromatin structure have a major impact in genome stabilization and maintenance of cellular homeostasis, been recently implicated in the pathophysiology of central nervous system (CNS). Aberrant expression and dysregulation of histone modification enzymes has been associated with the development of several CNS disorders, revealing these enzymes as putative targets for drug development and novel therapeutic approaches. SETDB1 is a histone lysine methyltransferase responsible for the di- and tri-methylation of histone 3 (H3) at lysine (K) 9 in euchromatic regions further promoting gene silencing through heterochromatin formation. By this way, SETDB1 has been shown to regulate gene expression and influence normal cellular homeostasis required for nervous system function while it is also implicated in the pathogenesis of CNS disorders. Among them, brain tumors, schizophrenia, Huntington's disease, autism spectrum disorders along with alcohol-induced fetal neurobehavioral deficits and Prader-Willi syndrome are representative examples, indicating the aberrant expression and function of SETDB1 as a common pathogenic factor. In this review, we focus on SETDB1-associated molecular mechanisms implicated in CNS physiology and disease while we further discuss current pharmacological approaches targeting SETDB1 enzymatic activity with beneficial effects.
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Affiliation(s)
- Mariam Markouli
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Dimitrios Strepkos
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Sarantis Chlamydas
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.
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Methionine mediates resilience to chronic social defeat stress by epigenetic regulation of NMDA receptor subunit expression. Psychopharmacology (Berl) 2020; 237:3007-3020. [PMID: 32564114 DOI: 10.1007/s00213-020-05588-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 06/11/2020] [Indexed: 10/24/2022]
Abstract
RATIONALE Previous studies suggested that methionine (Met) levels are decreased in depressed patients. However, whether the decrease in this amino acid is important for phenotypic behaviors associated with depression has not been deciphered. OBJECTIVE The response of individuals to chronic stress is variable, with some individuals developing depression and others becoming resilient to stress. In this study, our objective was to examine the effect of Met on susceptibility to stress. METHODS Male C57BL/6J mice were subjected to daily defeat sessions by a CD1 aggressor, for 10 days. On day 11, the behavior of mice was assessed using social interaction and open-field tests. Mice received Met 4 h before each defeat session. Epigenetic targets were assessed either through real-rime RTPCR or through Western Blots. RESULTS Met did not modulate anxiety-like behaviors, but rather promoted resilience to chronic stress, rescued social avoidance behaviors and reversed the increase in the cortical expression levels of N-methyl-D-aspartate receptor (NMDAR) subunits. Activating NMDAR activity abolished the ability of Met to promote resilience to stress and to rescue social avoidance behavior, whereas inhibiting NMDAR did not show any synergistic or additive protective effects. Indeed, Met increased the cortical levels of the histone methyltransferase SETDB1, and in turn, the levels of the repressive histone H3 lysine (K9) trimethylation (me3). CONCLUSIONS Our data indicate that Met rescues susceptibility to stress by inactivating cortical NMDAR activity through an epigenetic mechanism involving histone methylation.
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25
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Gaggi G, Di Credico A, Izzicupo P, Alviano F, Di Mauro M, Di Baldassarre A, Ghinassi B. Human Mesenchymal Stromal Cells Unveil an Unexpected Differentiation Potential toward the Dopaminergic Neuronal Lineage. Int J Mol Sci 2020; 21:ijms21186589. [PMID: 32916865 PMCID: PMC7555006 DOI: 10.3390/ijms21186589] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 08/29/2020] [Accepted: 09/08/2020] [Indexed: 12/12/2022] Open
Abstract
Degeneration of dopaminergic neurons represents the cause of many neurodegenerative diseases, with increasing incidence worldwide. The replacement of dead cells with new healthy ones may represent an appealing therapeutic approach to these pathologies, but currently, only pluripotent stem cells can generate dopaminergic neurons with high efficiency. However, with the use of these cells arises safety and/or ethical issues. Human mesenchymal stromal cells (hFM-MSCs) are perinatal stem cells that can be easily isolated from the amniochorionic membrane after delivery. Generally considered multipotent, their real differentiative potential is not completely elucidated. The aim of this study was to analyze their stemness characteristics and to evaluate whether they may overcome their mesenchymal fate, generating dopaminergic neurons. We demonstrated that hFM-MSCs expressed embryonal genes OCT4, NANOG, SOX2, KLF4, OVOL1, and ESG1, suggesting they have some features of pluripotency. Moreover, hFM-MSCs that underwent a dopaminergic differentiation protocol gradually increased the transcription of dopaminergic markers LMX1b, NURR1, PITX3, and DAT. We finally obtained a homogeneous population of cells resembling the morphology of primary midbrain dopaminergic neurons that expressed the functional dopaminergic markers TH, DAT, and Nurr1. In conclusion, our results suggested that hFM-MSCs retain the expression of pluripotency genes and are able to differentiate not only into mesodermal cells, but also into neuroectodermal dopaminergic neuron-like cells.
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Affiliation(s)
- Giulia Gaggi
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.G.); (A.D.C.); (P.I.); (B.G.)
| | - Andrea Di Credico
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.G.); (A.D.C.); (P.I.); (B.G.)
| | - Pascal Izzicupo
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.G.); (A.D.C.); (P.I.); (B.G.)
| | - Francesco Alviano
- Department of Experimental Diagnostic and Speciality Medicine, Unit of Histology, Embriology and Applied Biology, University of Bologna, 40126 Bologna, Italy;
| | - Michele Di Mauro
- Cardio-Thoracic Surgery Unit, Heart and Vascular Centre, Maastricht University Medical Centre (MUMC), Cardiovascular Research Institute Maastricht (CARIM), 6202 Maastricht, The Netherlands;
| | - Angela Di Baldassarre
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.G.); (A.D.C.); (P.I.); (B.G.)
- Correspondence:
| | - Barbara Ghinassi
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.G.); (A.D.C.); (P.I.); (B.G.)
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Lorigooini Z, Nasiri Boroujeni S, Balali-Dehkordi S, Ebrahimi L, Bijad E, Rahimi-Madiseh M, Amini-Khoei H. Possible involvement of NMDA receptor in the anxiolytic-like effect of caffeic acid in mice model of maternal separation stress. Heliyon 2020; 6:e04833. [PMID: 32944669 PMCID: PMC7481568 DOI: 10.1016/j.heliyon.2020.e04833] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 05/18/2020] [Accepted: 08/28/2020] [Indexed: 12/13/2022] Open
Abstract
Background and aim Anxiety disorders are one of the most common psychiatric disorders worldwide. Common anti-anxiety medications are associated with several side effects. Caffeic acid (CA) is a phenolic compound with several pharmacological effects. The aim of this study was to investigate the anxiolytic-like effect of CA in maternally separated (MS) mice focusing on the possible involvement of the NMDA receptor. Materials and methods In this study, we used the MS paradigm (as a valid animal model of anxiety) in male mice and examined their anxiety-like behavior in postnatal day (PND) 45. The animals were divided into 12 experimental groups. Mice treated with CA alone and in combination with the NMDA receptor agonist/antagonist and then using open field (OFT) and elevated plus maze (EPM) anxiety-like behavior was assessed. Finally, the expression of NMDA receptor subtypes was assessed in the hippocampus using RT- PCR. Results Finding showed that CA exerted anxiolytic –like effects in the OFT and EPM tests. We showed that administration of effective dose of NMDA significantly reversed the anxiolytic-like effect of effective dose of CA and co-administration of ketamine (a NMDA receptor antagonist) significantly potentiated the effect of sub-effective dose of CA. Furthermore, ketamine enhanced the CA-reducing effect on NMDA receptors in the MS mice. Conclusion Our finding demonstrated that, probably at least, NMDA receptors are involved in the anxiety-like properties of CA in MS mice.
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Affiliation(s)
- Zahra Lorigooini
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Shakiba Nasiri Boroujeni
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Shima Balali-Dehkordi
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Leila Ebrahimi
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Elham Bijad
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad Rahimi-Madiseh
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Hossein Amini-Khoei
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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27
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Ghinassi B, Di Baldassarre A, D’Addazio G, Traini T, Andrisani M, Di Vincenzo G, Gaggi G, Piattelli M, Caputi S, Sinjari B. Gingival Response to Dental Implant: Comparison Study on the Effects of New Nanopored Laser-Treated vs. Traditional Healing Abutments. Int J Mol Sci 2020; 21:ijms21176056. [PMID: 32842709 PMCID: PMC7504205 DOI: 10.3390/ijms21176056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/14/2020] [Accepted: 08/21/2020] [Indexed: 12/15/2022] Open
Abstract
The health of peri-implant soft tissues is important for the long-term success rate of dental implants and the surface topography is pivotal in influencing it. Thus, the aim of this study was to evaluate, in human patients, the inflammatory mucosal microenvironment in the tissue surrounding a new, nanoscale, laser-treated healing abutment characterized by engineered nanopores versus a standard machined-surface. Analyses of anti- and pro-inflammatory markers, cytokeratins, desmosomal proteins and scanning electron microscopy were performed in 30 soft-tissue biopsies retrieved during second-stage surgery. The results demonstrate that the soft tissue surrounding the laser-treated surface was characterized by a lower grade of inflammation than the one facing the machined-surface, which, in turn, showed a disrupted epithelium and altered desmosomes. Moreover, higher adhesion of the epithelial cells on the laser-treated surface was detected compared to the machined one. In conclusion, the laser-treated surface topography seems to play an important role not only in cell adhesion, but also on the inflammatory makers’ expression of the soft tissue microenvironment. Thus, from a clinical point of view, the use of this kind of topography may be of crucial importance not only on healing abutments but also on prosthetic ones.
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Affiliation(s)
- Barbara Ghinassi
- Human Anatomy and Cell Differentation Lab, Department of Medicine and Aging Sciences, University “G.d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
- Correspondence: (B.G.); (A.D.B.)
| | - Angela Di Baldassarre
- Human Anatomy and Cell Differentation Lab, Department of Medicine and Aging Sciences, University “G.d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
- Correspondence: (B.G.); (A.D.B.)
| | - Gianmaria D’Addazio
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.D.); (T.T.); (M.A.); (M.P.); (S.C.); (B.S.)
- Electron Microscopy Laboratory, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Tonino Traini
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.D.); (T.T.); (M.A.); (M.P.); (S.C.); (B.S.)
- Electron Microscopy Laboratory, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Mauro Andrisani
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.D.); (T.T.); (M.A.); (M.P.); (S.C.); (B.S.)
| | - Giorgio Di Vincenzo
- Department of Periodontics & Implant Dentistry, New York University, E 40th St #508, New York, NY 10016, USA;
| | - Giulia Gaggi
- Human Anatomy and Cell Differentation Lab, Department of Medicine and Aging Sciences, University “G.d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
| | - Maurizio Piattelli
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.D.); (T.T.); (M.A.); (M.P.); (S.C.); (B.S.)
| | - Sergio Caputi
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.D.); (T.T.); (M.A.); (M.P.); (S.C.); (B.S.)
- Electron Microscopy Laboratory, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Bruna Sinjari
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (G.D.); (T.T.); (M.A.); (M.P.); (S.C.); (B.S.)
- Electron Microscopy Laboratory, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
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Epigenetic Features of Human Perinatal Stem Cells Redefine Their Stemness Potential. Cells 2020; 9:cells9051304. [PMID: 32456308 PMCID: PMC7290760 DOI: 10.3390/cells9051304] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 02/06/2023] Open
Abstract
Human perinatal stem cells (SCs) can be isolated from fetal annexes without ethical or safety limitations. They are generally considered multipotent; nevertheless, their biological characteristics are still not fully understood. The aim of this study was to investigate the pluripotency potential of human perinatal SCs as compared to human induced pluripotent stem cells (hiPSCs). Despite the low expression of the pluripotent factors NANOG, OCT4, SOX2, and C-KIT in perinatal SC, we observed minor differences in the promoters DNA-methylation profile of these genes with respect to hiPSCs; we also demonstrated that in perinatal SCs miR-145-5p had an inverse trend in comparison to these stemness markers, suggesting that NANOG, OCT4, and SOX2 were regulated at the post-transcriptional level. The reduced expression of stemness markers was also associated with shorter telomere lengths and shift of the oxidative metabolism between hiPSCs and fetal annex-derived cells. Our findings indicate the differentiation ability of perinatal SCs might not be restricted to the mesenchymal lineage due to an epigenetic barrier, but other regulatory mechanisms such as telomere shortening or metabolic changes might impair their differentiation potential and challenge their clinical application.
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29
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Pourpre R, Naudon L, Meziane H, Lakisic G, Jouneau L, Varet H, Legendre R, Wendling O, Selloum M, Proux C, Coppée JY, Herault Y, Bierne H. BAHD1 haploinsufficiency results in anxiety-like phenotypes in male mice. PLoS One 2020; 15:e0232789. [PMID: 32407325 PMCID: PMC7224496 DOI: 10.1371/journal.pone.0232789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/21/2020] [Indexed: 02/07/2023] Open
Abstract
BAHD1 is a heterochomatinization factor recently described as a component of a multiprotein complex associated with histone deacetylases HDAC1/2. The physiological and patho-physiological functions of BAHD1 are not yet well characterized. Here, we examined the consequences of BAHD1 deficiency in the brains of male mice. While Bahd1 knockout mice had no detectable defects in brain anatomy, RNA sequencing profiling revealed about 2500 deregulated genes in Bahd1-/- brains compared to Bahd1+/+ brains. A majority of these genes were involved in nervous system development and function, behavior, metabolism and immunity. Exploration of the Allen Brain Atlas and Dropviz databases, assessing gene expression in the brain, revealed that expression of the Bahd1 gene was limited to a few territories and cell subtypes, particularly in the hippocampal formation, the isocortex and the olfactory regions. The effect of partial BAHD1 deficiency on behavior was then evaluated on Bahd1 heterozygous male mice, which have no lethal or metabolic phenotypes. Bahd1+/- mice showed anxiety-like behavior and reduced prepulse inhibition (PPI) of the startle response. Altogether, these results suggest that BAHD1 plays a role in chromatin-dependent gene regulation in a subset of brain cells and support recent evidence linking genetic alteration of BAHD1 to psychiatric disorders in a human patient.
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Affiliation(s)
- Renaud Pourpre
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Laurent Naudon
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Micalis Institute, Université Paris-Saclay, CNRS, INRAE, AgroParisTech, Jouy-en-Josas, France
| | - Hamid Meziane
- Institut Clinique de la Souris-ICS, Université de Strasbourg, CNRS, INSERM, PHENOMIN, Illkirch, France
| | - Goran Lakisic
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Luc Jouneau
- Université Paris-Saclay, INRAE, Virologie et Immunologie Moléculaires, Jouy-en-Josas, France
| | - Hugo Varet
- Institut Pasteur, Bioinformatics and Biostatistics Hub, C3BI, USR 3756 IP CNRS, Paris, France
- Institut Pasteur, Transcriptome and Epigenome Platform, Biomics Pole, Paris, France
| | - Rachel Legendre
- Institut Pasteur, Bioinformatics and Biostatistics Hub, C3BI, USR 3756 IP CNRS, Paris, France
- Institut Pasteur, Transcriptome and Epigenome Platform, Biomics Pole, Paris, France
| | - Olivia Wendling
- Institut Clinique de la Souris-ICS, Université de Strasbourg, CNRS, INSERM, PHENOMIN, Illkirch, France
| | - Mohammed Selloum
- Institut Clinique de la Souris-ICS, Université de Strasbourg, CNRS, INSERM, PHENOMIN, Illkirch, France
| | - Caroline Proux
- Institut Pasteur, Transcriptome and Epigenome Platform, Biomics Pole, Paris, France
| | - Jean-Yves Coppée
- Institut Pasteur, Transcriptome and Epigenome Platform, Biomics Pole, Paris, France
| | - Yann Herault
- Institut Clinique de la Souris-ICS, Université de Strasbourg, CNRS, INSERM, PHENOMIN, Illkirch, France
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique Biologie Moléculaire et Cellulaire (IGBMC), UMR7104, U1268, Illkirch, France
| | - Hélène Bierne
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
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30
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Zhu Y, Sun D, Jakovcevski M, Jiang Y. Epigenetic mechanism of SETDB1 in brain: implications for neuropsychiatric disorders. Transl Psychiatry 2020; 10:115. [PMID: 32321908 PMCID: PMC7176658 DOI: 10.1038/s41398-020-0797-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 03/13/2020] [Accepted: 03/26/2020] [Indexed: 12/14/2022] Open
Abstract
Neuropsychiatric disorders are a collective of cerebral conditions with a multifactorial and polygenetic etiology. Dysregulation of epigenetic profiles in the brain is considered to play a critical role in the development of neuropsychiatric disorders. SET domain, bifurcate 1 (SETDB1), functioning as a histone H3K9 specific methyltransferase, is not only critically involved in transcriptional silencing and local heterochromatin formation, but also affects genome-wide neuronal epigenetic profiles and is essential for 3D genome integrity. Here, we provide a review of recent advances towards understanding the role of SETDB1 in the central nervous system during early neurodevelopment as well as in the adult brain, with a particular focus on studies that link its functions to neuropsychiatric disorders and related behavioral changes, and the exploration of novel therapeutic strategies targeting SETDB1.
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Affiliation(s)
- Yueyan Zhu
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Fudan University, 200032, Shanghai, China
| | - Daijing Sun
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Fudan University, 200032, Shanghai, China
| | - Mira Jakovcevski
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Munich, Germany
| | - Yan Jiang
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Fudan University, 200032, Shanghai, China.
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Li YC, Panikker P, Xing B, Yang SS, Alexandropoulos C, McEachern EP, Akumuo R, Zhao E, Gulchina Y, Pletnikov MV, Urs NM, Caron MG, Elefant F, Gao WJ. Deletion of Glycogen Synthase Kinase-3β in D 2 Receptor-Positive Neurons Ameliorates Cognitive Impairment via NMDA Receptor-Dependent Synaptic Plasticity. Biol Psychiatry 2020; 87:745-755. [PMID: 31892408 PMCID: PMC7103512 DOI: 10.1016/j.biopsych.2019.10.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/28/2019] [Accepted: 10/29/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Cortical dopaminergic systems are critically involved in prefrontal cortex (PFC) functions, especially in working memory and neurodevelopmental disorders such as schizophrenia. GSK-3β (glycogen synthase kinase-3β) is highly associated with cAMP (cyclic adenosine monophosphate)-independent dopamine D2 receptor (D2R)-mediated signaling to affect dopamine-dependent behaviors. However, the mechanisms underlying the GSK-3β modulation of cognitive function via D2Rs remains unclear. METHODS This study explored how conditional cell-type-specific ablation of GSK-3β in D2R+ neurons (D2R-GSK-3β-/-) in the brain affects synaptic function in the medial PFC (mPFC). Both male and female (postnatal days 60-90) mice, including 140 D2R, 24 D1R, and 38 DISC1 mice, were used. RESULTS This study found that NMDA receptor (NMDAR) function was significantly increased in layer V pyramidal neurons in mPFC of D2R-GSK-3β-/- mice, along with increased dopamine modulation of NMDAR-mediated current. Consistently, NR2A and NR2B protein levels were elevated in mPFC of D2R-GSK-3β-/- mice. This change was accompanied by a significant increase in enrichment of activator histone mark H3K27ac at the promoters of both Grin2a and Grin2b genes. In addition, altered short- and long-term synaptic plasticity, along with an increased spine density in layer V pyramidal neurons, were detected in D2R-GSK-3β-/- mice. Indeed, D2R-GSK-3β-/- mice also exhibited a resistance of working memory impairment induced by injection of NMDAR antagonist MK-801. Notably, either inhibiting GSK-3β or disrupting the D2R-DISC1 complex was able to reverse the mutant DISC1-induced decrease of NMDAR-mediated currents in the mPFC. CONCLUSIONS This study demonstrates that GSK-3β modulates cognition via D2R-DISC1 interaction and epigenetic regulation of NMDAR expression and function.
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Affiliation(s)
- Yan-Chun Li
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania.
| | - Priyalakshmi Panikker
- Department of Biology, Drexel University College of Medicine, Philadelphia, PA 19104, USA
| | - Bo Xing
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Sha-Sha Yang
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Cassandra Alexandropoulos
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Erin P McEachern
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Rita Akumuo
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Elise Zhao
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Yelena Gulchina
- Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Mikhail V. Pletnikov
- Departments of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Nikhil M. Urs
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL 32610, USA
| | - Marc G. Caron
- Departments of Cell Biology, Neurobiology, and Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Felice Elefant
- Department of Biology, Drexel University College of Medicine, Philadelphia, PA 19104, USA
| | - Wen-Jun Gao
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania.
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Snyder MA, Gao WJ. NMDA receptor hypofunction for schizophrenia revisited: Perspectives from epigenetic mechanisms. Schizophr Res 2020; 217:60-70. [PMID: 30979669 PMCID: PMC7258307 DOI: 10.1016/j.schres.2019.03.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/08/2019] [Accepted: 03/11/2019] [Indexed: 02/06/2023]
Abstract
Schizophrenia (SZ) is a neurodevelopmental disorder with cognitive deficits manifesting during early stages of the disease. Evidence suggests that genetic factors in combination with environmental insults lead to complex changes to glutamatergic, GABAergic, and dopaminergic systems. In particular, the N-methyl-d-aspartate receptor (NMDAR), a major glutamate receptor subtype, is implicated in both the disease progression and symptoms of SZ. NMDARs are critical for synaptic plasticity and cortical maturation, as well as learning and memory processes. In fact, any deviation from normal NMDAR expression and function can have devastating consequences. Surprisingly, there is little evidence from human patients that direct mutations of NMDAR genes contribute to SZ. One intriguing hypothesis is that epigenetic changes, which could result from early insults, alter protein expression and contribute to the NMDAR hypofunction found in SZ. Epigenetics is referred to as modifications that alter gene transcription without changing the DNA sequence itself. In this review, we first discuss how epigenetic changes to NMDAR genes could contribute to NMDAR hypofunction. We then explore how NMDAR hypofunction may contribute to epigenetic changes in other proteins or genes that lead to synaptic dysfunction and symptoms in SZ. We argue that NMDAR hypofunction occurs in early stage of the disease, and it may consequentially initiate GABA and dopamine deficits. Therefore, targeting NMDAR dysfunction during the early stages would be a promising avenue for prevention and therapeutic intervention of cognitive and social deficits that remain untreatable. Finally, we discuss potential questions regarding the epigenetic of SZ and future directions for research.
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Affiliation(s)
- Melissa A. Snyder
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada, K1H 8M5,Correspondence: Wen-Jun Gao, M.D., Ph.D., Department of Neurobiology and Anatomy, Drexel University College of Medicine, 2900 Queen Lane, Philadelphia, PA 19129, Phone: (215) 991-8907, Fax: (215) 843-9802, ; Melissa A. Snyder, Ph.D.,
| | - Wen-Jun Gao
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States of America.
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Rajarajan P, Borrman T, Liao W, Espeso-Gil S, Chandrasekaran S, Jiang Y, Weng Z, Brennand KJ, Akbarian S. Spatial genome exploration in the context of cognitive and neurological disease. Curr Opin Neurobiol 2019; 59:112-119. [PMID: 31255842 PMCID: PMC6889018 DOI: 10.1016/j.conb.2019.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/24/2019] [Accepted: 05/28/2019] [Indexed: 01/01/2023]
Abstract
The 'non-linear' genome, or the spatial proximity of non-contiguous sequences, emerges as an important regulatory layer for genome organization and function, including transcriptional regulation. Here, we review recent genome-scale chromosome conformation mappings ('Hi-C') in developing and adult human and mouse brain. Neural differentiation is associated with widespread remodeling of the chromosomal contact map, reflecting dynamic changes in cell-type-specific gene expression programs, with a massive (estimated 20-50%) net loss of chromosomal contacts that is specific for the neuronal lineage. Hi-C datasets provided an unexpected link between locus-specific abnormal expansion of repeat sequences positioned at the boundaries of self-associating topological chromatin domains, and monogenic neurodevelopmental and neurodegenerative disease. Furthermore, integrative cell-type-specific Hi-C and transcriptomic analysis uncovered an expanded genomic risk space for sequences conferring liability for schizophrenia and other cognitive disease. We predict that spatial genome exploration will deliver radically new insights into the brain nucleome in health and disease.
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Affiliation(s)
- Prashanth Rajarajan
- Icahn School of Medicine MD/PhD Program, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Tyler Borrman
- Program in Bioinformatics and Integrative Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Will Liao
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; New York Genome Center, New York, NY 10013, USA
| | - Sergio Espeso-Gil
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sandhya Chandrasekaran
- Icahn School of Medicine MD/PhD Program, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Yan Jiang
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200032, China
| | - Zhiping Weng
- Program in Bioinformatics and Integrative Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Kristen J Brennand
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Schahram Akbarian
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Chitaman JM, Fraser P, Feng J. Three-dimensional chromosome architecture and drug addiction. Curr Opin Neurobiol 2019; 59:137-145. [PMID: 31276935 DOI: 10.1016/j.conb.2019.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/04/2019] [Accepted: 05/28/2019] [Indexed: 10/26/2022]
Abstract
Aberrant gene expression underlies drug addiction. Therefore, studying the regulation of gene expression in drug addiction may provide mechanistic insights into this disease, for which there are still only limited treatments. Recently, the three-dimensional (3D) organization of linear DNA in the nucleus has been recognized as having a major influence on gene transcription. Here, we review its roles in both basic brain function and neuropsychiatric disorders, while also highlighting its emerging implications in drug addiction. Unraveling the 3D architecture of chromosomes in drug addiction is adding to our understanding of this disease and has the potential to trigger novel approaches for better diagnosis and therapy.
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Affiliation(s)
- Javed M Chitaman
- Department of Biological Science, Florida State University, 319 Stadium Drive, Tallahassee, FL 32306, USA; Program in Neuroscience, Florida State University, Tallahassee, FL 32306, USA
| | - Peter Fraser
- Department of Biological Science, Florida State University, 319 Stadium Drive, Tallahassee, FL 32306, USA
| | - Jian Feng
- Department of Biological Science, Florida State University, 319 Stadium Drive, Tallahassee, FL 32306, USA; Program in Neuroscience, Florida State University, Tallahassee, FL 32306, USA.
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Karnib N, El-Ghandour R, El Hayek L, Nasrallah P, Khalifeh M, Barmo N, Jabre V, Ibrahim P, Bilen M, Stephan JS, Holson EB, Ratan RR, Sleiman SF. Lactate is an antidepressant that mediates resilience to stress by modulating the hippocampal levels and activity of histone deacetylases. Neuropsychopharmacology 2019; 44:1152-1162. [PMID: 30647450 PMCID: PMC6461925 DOI: 10.1038/s41386-019-0313-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/27/2018] [Accepted: 12/30/2018] [Indexed: 11/09/2022]
Abstract
Chronic stress promotes depression in some individuals, but has no effect in others. Susceptible individuals exhibit social avoidance and anxious behavior and ultimately develop depression, whereas resilient individuals live normally. Exercise counteracts the effects of stress. Our objective was to examine whether lactate, a metabolite produced during exercise and known to reproduce specific brain exercise-related changes, promotes resilience to stress and acts as an antidepressant. To determine whether lactate promotes resilience to stress, male C57BL/6 mice experienced daily defeat by a CD-1 aggressor, for 10 days. On the 11th day, mice were subjected to behavioral tests. Mice received lactate before each defeat session. When compared with control mice, mice exposed to stress displayed increased susceptibility, social avoidance and anxiety. Lactate promoted resilience to stress and rescued social avoidance and anxiety by restoring hippocampal class I histone deacetylase (HDAC) levels and activity, specifically HDAC2/3. To determine whether lactate is an antidepressant, mice only received lactate from days 12-25 and a second set of behavioral tests was conducted on day 26. In this paradigm, we examined whether lactate functions by regulating HDACs using co-treatment with CI-994, a brain-permeable class I HDAC inhibitor. When administered after the establishment of depression, lactate behaved as antidepressant. In this paradigm, lactate regulated HDAC5 and not HDAC2/3 levels. On the contrary, HDAC2/3 inhibition was antidepressant-like. This indicates that lactate mimics exercise's effects and rescues susceptibility to stress by modulating HDAC2/3 activity and suggests that HDAC2/3 play opposite roles before and after establishment of susceptibility to stress.
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Affiliation(s)
- Nabil Karnib
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Rim El-Ghandour
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Lauretta El Hayek
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Patrick Nasrallah
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Mohamad Khalifeh
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Nour Barmo
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Vanessa Jabre
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Pascale Ibrahim
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Maria Bilen
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Joseph S. Stephan
- 0000 0001 2324 5973grid.411323.6School of Medicine, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - Edward B. Holson
- Atlas Venture, Cambridge, MA USA ,grid.66859.34Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA USA
| | - Rajiv R. Ratan
- 0000 0004 0421 4727grid.410373.2Burke Medical Research Institute, White Plains, NY USA
| | - Sama F. Sleiman
- 0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Molecular Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon ,0000 0001 2324 5973grid.411323.6Department of Natural Sciences, Biology Program, Lebanese American University, PO Box 36, Byblos, Lebanon
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36
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Affiliation(s)
- Andre Fischer
- Department for Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany.
- Department for Systems Medicine and Brain Diseases, German Center for Neurodegenerative Diseases (DZNE) site Göttingen, Göttingen, Germany.
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37
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Chromosomal Conformations and Epigenomic Regulation in Schizophrenia. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 157:21-40. [PMID: 29933951 DOI: 10.1016/bs.pmbts.2017.11.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Chromosomal conformations, including promoter-enhancer loops, provide a critical regulatory layer for the transcriptional machinery. Therefore, schizophrenia, a common psychiatric disorder associated with broad changes in neuronal gene expression in prefrontal cortex and other brain regions implicated in psychosis, could be associated with alterations in higher-order chromatin. Here, we review early studies on spatial genome organization in the schizophrenia postmortem brain and discuss how integrative approaches using cell culture and animal model systems could gain deeper insight into the potential roles of higher-order chromatin for the neurobiology of and novel treatment avenues for common psychiatric disease.
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38
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Yang L, Gee AO, Zielinska-Kwiatkowska A, Chansky HA. Generation and characterization of mice with mesenchyme-specific deletion of the entire ESET histone methyltransferase protein. Genesis 2018; 56. [PMID: 29282851 DOI: 10.1002/dvg.23088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/20/2017] [Accepted: 12/25/2017] [Indexed: 12/24/2022]
Abstract
ESET protein (also known as SETDB1) catalyzes methylation of histone H3 at lysine 9 (H3-K9). In addition to the full-length transcript, mouse ESET gene also gives rise to alternative spicing variants encoding truncated proteins capable of retaining interaction with other epigenetic enzymes. To completely eliminate full-length ESET and its splicing variants, we have generated a conditional ESET allele with exon 4 flanked by two loxP sites for Cre-mediated DNA deletion and downstream frame-shift mutation of the entire coding region. Mating with Prx1-Cre mice and analysis of the resultant embryos revealed that mesenchyme-specific knockout of exon 4 completely eliminates full-length ESET and its truncated protein products, leading to profound defects in both the flat bones and long bones, ectopic hypertrophy of growth plate chondrocytes and downregulation of Indian hedgehog protein. In addition, exon 4 deletion results in reduced thickness of articular cartilage in E17.5 embryos, whereas deletion of exons 15-16 fails to do so. These findings offer us a useful tool to further study epigenetic regulation in a truly ESET-null background, and demonstrate that ESET plays a critical role in the control of chondrocyte hypertrophy and skeletal development.
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Affiliation(s)
- Liu Yang
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, Washington, 98195
| | - Albert O Gee
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, Washington, 98195
| | | | - Howard A Chansky
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, Washington, 98195
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Chen X, Long F, Cai B, Chen X, Chen G. A novel relationship for schizophrenia, bipolar and major depressive disorder Part 3: Evidence from chromosome 3 high density association screen. J Comp Neurol 2017; 526:59-79. [PMID: 28856687 DOI: 10.1002/cne.24311] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 07/29/2017] [Accepted: 07/31/2017] [Indexed: 12/30/2022]
Abstract
Familial clustering of schizophrenia (SCZ), bipolar disorder (BPD), and major depressive disorder (MDD) was systematically reported (Aukes et al, Genet Med 2012, 14, 338-341) and convergent evidence from genetics, symptomatology, and psychopharmacology imply that there are intrinsic connections between these three major psychiatric disorders, for example, any two or even three of these disorders could co-exist in some families. A total of 60, 838 single-nucleotide polymorphisms (SNPs) on chromosome 3 were genotyped by Affymetrix Genome-Wide Human SNP array 6.0 on 119 SCZ, 253 BPD (type-I), 177 MDD patients and 1,000 controls. The population of Shandong province was formed in 14 century and believed that it belongs to homogenous population. Associated SNPs were systematically revealed and outstanding susceptibility genes (CADPS, GRM7,KALRN, LSAMP, NLGN1, PRICKLE2, ROBO2) were identified. Unexpectedly, flanking genes for the associated SNPs distinctive for BPD and/or MDD were replicated in an enlarged cohort of 986 SCZ patients. The evidence from this chromosome 3 analysis supports the notion that both of bipolar and MDD might be subtypes of schizophrenia rather than independent disease entity. Also, a similar finding was detected on chromosome 5, 6, 7, and 8 (Chen et al. Am J Transl Res 2017;9 (5):2473-2491; Curr Mol Med 2016;16(9):840-854; Behav Brain Res 2015;293:241-251; Mol Neurobiol 2016. doi: 10.1007/s12035-016-0102-1). Furthermore, PRICKLE2 play an important role in the pathogenesis of three major psychoses in this population.
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Affiliation(s)
- Xing Chen
- Department of Medical Genetics, Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Feng Long
- Department of Medical Genetics, Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Bin Cai
- CapitalBio corporation, Beijing, People's Republic of China
| | - Xiaohong Chen
- CapitalBio corporation, Beijing, People's Republic of China
| | - Gang Chen
- Department of Medical Genetics, Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
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Gulchina Y, Xu SJ, Snyder MA, Elefant F, Gao WJ. Epigenetic mechanisms underlying NMDA receptor hypofunction in the prefrontal cortex of juvenile animals in the MAM model for schizophrenia. J Neurochem 2017. [PMID: 28628228 DOI: 10.1111/jnc.14101] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Schizophrenia (SCZ) is characterized not only by psychosis, but also by working memory and executive functioning deficiencies, processes that rely on the prefrontal cortex (PFC). Because these cognitive impairments emerge prior to psychosis onset, we investigated synaptic function during development in the neurodevelopmental methylazoxymethanol (MAM) model for SCZ. Specifically, we hypothesize that N-methyl-D-aspartate receptor (NMDAR) hypofunction is attributable to reductions in the NR2B subunit through aberrant epigenetic regulation of gene expression, resulting in deficient synaptic physiology and PFC-dependent cognitive dysfunction, a hallmark of SCZ. Using western blot and whole-cell patch-clamp electrophysiology, we found that the levels of synaptic NR2B protein are significantly decreased in juvenile MAM animals, and the function of NMDARs is substantially compromised. Both NMDA-mEPSCs and synaptic NMDA-eEPSCs are significantly reduced in prelimbic PFC (plPFC). This protein loss during the juvenile period is correlated with an aberrant increase in enrichment of the epigenetic transcriptional repressor RE1-silencing transcription factor (REST) and the repressive histone marker H3K27me3 at the Grin2b promoter, as assayed by ChIP-quantitative polymerase chain reaction. Glutamate hypofunction has been a prominent hypothesis in the understanding of SCZ pathology; however, little attention has been given to the NMDAR system in the developing PFC in models for SCZ. Our work is the first to confirm that NMDAR hypofunction is a feature of early postnatal development, with epigenetic hyper-repression of the Grin2b promoter being a contributing factor. The selective loss of NR2B protein and subsequent synaptic dysfunction weakens plPFC function during development and may underlie early cognitive impairments in SCZ models and patients. Read the Editorial Highlight for this article on page 264.
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Affiliation(s)
- Yelena Gulchina
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Song-Jun Xu
- Department of Biology, Drexel University, Philadelphia, Pennsylvania, USA
| | - Melissa A Snyder
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Felice Elefant
- Department of Biology, Drexel University, Philadelphia, Pennsylvania, USA
| | - Wen-Jun Gao
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
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Jiang Y, Loh YHE, Rajarajan P, Hirayama T, Liao W, Kassim BS, Javidfar B, Hartley BJ, Kleofas L, Park RB, Labonte B, Ho SM, Chandrasekaran S, Do C, Ramirez BR, Peter CJ, C W JT, Safaie BM, Morishita H, Roussos P, Nestler EJ, Schaefer A, Tycko B, Brennand KJ, Yagi T, Shen L, Akbarian S. The methyltransferase SETDB1 regulates a large neuron-specific topological chromatin domain. Nat Genet 2017; 49:1239-1250. [PMID: 28671686 PMCID: PMC5560095 DOI: 10.1038/ng.3906] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 06/05/2017] [Indexed: 12/14/2022]
Abstract
We report locus-specific disintegration of megabase-scale chromosomal conformations in brain after neuronal ablation of Kmt1e/Setdb1 histone H3-lysine 9 methyltransferase, including a large topologically associated 1.2Mb domain conserved in human and mouse and encompassing >70 genes at the clustered Protocadherin (cPcdh) locus. TADcPcdh in mutant neurons showed abnormal accumulations of CTCF transcriptional regulator and 3D genome organizer at cryptic binding sites, converted into permissive state with DNA cytosine hypomethylation and histone hyperacetylation. Broadly upregulated expression across cPcdh included defective S-type Protocadherin single-cell stochastic constraint. Setdb1-dependent loop formations, bypassing 0.2–1Mb of linear genome, radiated from TADPcdh fringes towards cPcdh cis-regulatory sequences, counterbalanced shorter-range facilitative promoter-enhancer contacts and carried loop-bound polymorphisms associated with genetic risk for schizophrenia. We show that KRAB-zinc finger Setdb1 repressor complex, shielding neuronal 3D genomes from excess CTCF binding, is critically required for structural maintenance of TADcPcdh.
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Affiliation(s)
- Yan Jiang
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yong-Hwee Eddie Loh
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Prashanth Rajarajan
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Teruyoshi Hirayama
- Kokoro-Biology Group, Laboratories for Integrated Biology, Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Will Liao
- New York Genome Center, New York, New York, USA
| | - Bibi S Kassim
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Behnam Javidfar
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Brigham J Hartley
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Lisa Kleofas
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Royce B Park
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benoit Labonte
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Seok-Man Ho
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Sandhya Chandrasekaran
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Catherine Do
- Institute for Cancer Genetics, Department of Pathology and Cell Biology, Columbia University, New York, New York, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, New York, USA
| | - Brianna R Ramirez
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Cyril J Peter
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Julia T C W
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Brian M Safaie
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Hirofumi Morishita
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Panos Roussos
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Mental Illness Research, Education and Clinical Center, James J. Peters Virginia Medical Center, New York, New York, USA
| | - Eric J Nestler
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Anne Schaefer
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benjamin Tycko
- Institute for Cancer Genetics, Department of Pathology and Cell Biology, Columbia University, New York, New York, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, New York, USA
| | - Kristen J Brennand
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Takeshi Yagi
- Kokoro-Biology Group, Laboratories for Integrated Biology, Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Li Shen
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Schahram Akbarian
- Friedman Brain Institute and Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Abstract
Progression of cells through distinct phases of the cell cycle, and transition into out-of-cycling states, such as terminal differentiation and senescence, is accompanied by specific patterns of gene expression. These cell fate decisions are mediated not only by distinct transcription factors, but also chromatin modifiers that establish heritable epigenetic patterns. Lysine methyltransferases (KMTs) that mediate methylation marks on histone and non-histone proteins are now recognized as important regulators of gene expression in cycling and non-cycling cells. Among these, the SUV39 sub-family of KMTs, which includes SUV39H1, SUV39H2, G9a, GLP, SETDB1, and SETDB2, play a prominent role. In this review, we discuss their biochemical properties, sub-cellular localization and function in cell cycle, differentiation programs, and cellular senescence. We also discuss their aberrant expression in cancers, which exhibit de-regulation of cell cycle and differentiation.
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Affiliation(s)
- Vinay Kumar Rao
- a Department of Physiology , Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Ananya Pal
- a Department of Physiology , Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Reshma Taneja
- a Department of Physiology , Yong Loo Lin School of Medicine, National University of Singapore , Singapore
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43
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Deussing JM, Jakovcevski M. Histone Modifications in Major Depressive Disorder and Related Rodent Models. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 978:169-183. [PMID: 28523546 DOI: 10.1007/978-3-319-53889-1_9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Major depressive disorder (MDD) is a multifactorial disease, weakly linked to multiple genetic risk factors. In contrast to that, environmental factors and "gene × environment" interaction between specific risk genes and environmental factors, such as severe or early stress exposure, have been strongly linked to MDD vulnerability. Stressors can act on the interface between an organism and the environment, the epigenome. The molecular foundation for the impact of stressors on the risk to develop MDD is based on the hormonal stress response itself: the glucocorticoid receptor (GR, encoded by NR3C1). NR3C1 can directly interact with the epigenome in the cell nucleus. Besides DNA methylation, histone modifications have been reported to be crucial targets for the interaction with the stress response system. Here, we review critical findings on the impact of the most relevant histone modifications, i.e. histone acetylation and methylation, in the context of MDD and related animal models. We discuss new treatment options which have been based on these findings, including histone deacetylase inhibitors (HDACis) and drugs targeting specific histone marks, closely linked to psychiatric disease. In this context we talk about contemporary and future approaches required to fully understand (1) the epigenetics of stress-related disease and (2) the mode of action of potential MDD drugs targeting histone modifications. This includes harnessing the unprecedented potentials of genome-wide analysis of the epigenome and transcriptome, in a cell type-specific manner, and the use of epigenome editing technologies to clearly link epigenetic marks on specific genomic loci to functional relevance.
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Affiliation(s)
- Jan M Deussing
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstr. 2, 80804, Munich, Bavaria, Germany
| | - Mira Jakovcevski
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstr. 2, 80804, Munich, Bavaria, Germany.
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44
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Rajarajan P, Gil SE, Brennand KJ, Akbarian S. Spatial genome organization and cognition. Nat Rev Neurosci 2016; 17:681-691. [PMID: 27708356 DOI: 10.1038/nrn.2016.124] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nonrandom chromosomal conformations, including promoter-enhancer loopings that bypass kilobases or megabases of linear genome, provide a crucial layer of transcriptional regulation and move vast amounts of non-coding sequence into the physical proximity of genes that are important for neurodevelopment, cognition and behaviour. Activity-regulated changes in the neuronal '3D genome' could govern transcriptional mechanisms associated with learning and plasticity, and loop-bound intergenic and intronic non-coding sequences have been implicated in psychiatric and adult-onset neurodegenerative disease. Recent studies have begun to clarify the roles of spatial genome organization in normal and abnormal cognition.
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Affiliation(s)
- Prashanth Rajarajan
- Department of Psychiatry, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, 10029 New York, USA
| | - Sergio Espeso Gil
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain.,Universitat Pompeu Fabra (UPF), Plaça de la Mercè 10, Barcelona 08002, Spain
| | - Kristen J Brennand
- Department of Psychiatry, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, 10029 New York, USA
| | - Schahram Akbarian
- Department of Psychiatry, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, 10029 New York, USA
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45
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Longitudinal assessment of neuronal 3D genomes in mouse prefrontal cortex. Nat Commun 2016; 7:12743. [PMID: 27597321 PMCID: PMC5025847 DOI: 10.1038/ncomms12743] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 07/28/2016] [Indexed: 12/15/2022] Open
Abstract
Neuronal epigenomes, including chromosomal loopings moving distal cis-regulatory elements into proximity of target genes, could serve as molecular proxy linking present-day-behaviour to past exposures. However, longitudinal assessment of chromatin state is challenging, because conventional chromosome conformation capture assays essentially provide single snapshots at a given time point, thus reflecting genome organization at the time of brain harvest and therefore are non-informative about the past. Here we introduce 'NeuroDam' to assess epigenome status retrospectively. Short-term expression of the bacterial DNA adenine methyltransferase Dam, tethered to the Gad1 gene promoter in mouse prefrontal cortex neurons, results in stable G(methyl)ATC tags at Gad1-bound chromosomal contacts. We show by NeuroDam that mice with defective cognition 4 months after pharmacological NMDA receptor blockade already were affected by disrupted chromosomal conformations shortly after drug exposure. Retrospective profiling of neuronal epigenomes is likely to illuminate epigenetic determinants of normal and diseased brain development in longitudinal context.
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Medrano-Fernández A, Barco A. Nuclear organization and 3D chromatin architecture in cognition and neuropsychiatric disorders. Mol Brain 2016; 9:83. [PMID: 27595843 PMCID: PMC5011999 DOI: 10.1186/s13041-016-0263-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 08/06/2016] [Indexed: 01/08/2023] Open
Abstract
The current view of neuroplasticity depicts the changes in the strength and number of synaptic connections as the main physical substrate for behavioral adaptation to new experiences in a changing environment. Although transcriptional regulation is known to play a role in these synaptic changes, the specific contribution of activity-induced changes to both the structure of the nucleus and the organization of the genome remains insufficiently characterized. Increasing evidence indicates that plasticity-related genes may work in coordination and share architectural and transcriptional machinery within discrete genomic foci. Here we review the molecular and cellular mechanisms through which neuronal nuclei structurally adapt to stimuli and discuss how the perturbation of these mechanisms can trigger behavioral malfunction.
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Affiliation(s)
- Alejandro Medrano-Fernández
- Instituto de Neurociencias (Universidad Miguel Hernández-Consejo Superior de Investigaciones Científicas), Av. Santiago Ramón y Cajal s/n. Sant Joan d'Alacant, 03550, Alicante, Spain
| | - Angel Barco
- Instituto de Neurociencias (Universidad Miguel Hernández-Consejo Superior de Investigaciones Científicas), Av. Santiago Ramón y Cajal s/n. Sant Joan d'Alacant, 03550, Alicante, Spain.
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47
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Chromosomal microarray analysis in clinical evaluation of neurodevelopmental disorders-reporting a novel deletion of SETDB1 and illustration of counseling challenge. Pediatr Res 2016; 80:371-81. [PMID: 27119313 PMCID: PMC5382808 DOI: 10.1038/pr.2016.101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 03/28/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND The pathogenicity of copy number variations (CNV) in neurodevelopmental disorders is supported by research literature. However, few studies have evaluated the utility and counseling challenges of CNV analysis in clinic. METHODS We analyzed the findings of CNV studies from a cohort referred for genetics evaluation of autism spectrum disorders (ASD), developmental disability (DD), and intellectual disability (ID). RESULTS Twenty-two CNV in 21 out of 115 probands are considered to be pathogenic (18.3%). Five CNV are likely pathogenic and 22 CNV are variants of unknown significance (VUS). We have found seven cases with more than two CNV and two with a complex rearrangement of the 22q13.3 Phelan-McDermid syndrome region. We identified a new and de novo 1q21.3 deletion that encompasses SETDB1, a gene encoding methylates histone H3 on lysine-9 (H3K9) methyltransferase, in a case with ASD. CONCLUSION We provide evidence to support the value of CNV analysis in etiological evaluation of neurodevelopmental disorders in autism genetics clinic. However, interpretation of the clinical significance and counseling families are still challenging because of the variable penetrance and pleotropic expressivity of CNV. In addition, the identification of a 1q21.3 deletion encompassing SETDB1 provides further support for the role of chromatin modifiers in the etiology of ASD.
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48
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BAZ1B in Nucleus Accumbens Regulates Reward-Related Behaviors in Response to Distinct Emotional Stimuli. J Neurosci 2016; 36:3954-61. [PMID: 27053203 DOI: 10.1523/jneurosci.3254-15.2016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 02/29/2016] [Indexed: 12/19/2022] Open
Abstract
UNLABELLED ATP-dependent chromatin remodeling proteins are being implicated increasingly in the regulation of complex behaviors, including models of several psychiatric disorders. Here, we demonstrate that Baz1b, an accessory subunit of the ISWI family of chromatin remodeling complexes, is upregulated in the nucleus accumbens (NAc), a key brain reward region, in both chronic cocaine-treated mice and mice that are resilient to chronic social defeat stress. In contrast, no regulation is seen in mice that are susceptible to this chronic stress. Viral-mediated overexpression of Baz1b, along with its associated subunit Smarca5, in mouse NAc is sufficient to potentiate both rewarding responses to cocaine, including cocaine self-administration, and resilience to chronic social defeat stress. However, despite these similar, proreward behavioral effects, genome-wide mapping of BAZ1B in NAc revealed mostly distinct subsets of genes regulated by these chromatin remodeling proteins after chronic exposure to either cocaine or social stress. Together, these findings suggest important roles for BAZ1B and its associated chromatin remodeling complexes in NAc in the regulation of reward behaviors to distinct emotional stimuli and highlight the stimulus-specific nature of the actions of these regulatory proteins. SIGNIFICANCE STATEMENT We show that BAZ1B, a component of chromatin remodeling complexes, in the nucleus accumbens regulates reward-related behaviors in response to chronic exposure to both rewarding and aversive stimuli by regulating largely distinct subsets of genes.
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49
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Nagy C, Torres-Platas SG, Mechawar N, Turecki G. Repression of Astrocytic Connexins in Cortical and Subcortical Brain Regions and Prefrontal Enrichment of H3K9me3 in Depression and Suicide. Int J Neuropsychopharmacol 2016; 20:50-57. [PMID: 27516431 PMCID: PMC5737582 DOI: 10.1093/ijnp/pyw071] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Major depressive disorder has been associated with dysfunctional astrocytic networks. The underlying causes, extent, and consequences of such dysfunctions remain to be characterized. Astrocyte-astrocyte communication occurs principally through gap junction channels primarily formed by connexin 30 and 43 (CX30 and CX43). We previously reported decreased connexin expression in the prefrontal cortex of depressed suicides. In the present study, we investigated whether these changes are mediated by epigenetic regulation, and expanded gene expression quantifications to other cortical and subcortical regions to assess the regional distribution of connexion disruptions in depressed suicides. METHODS The expression of CX30 and CX43 was measured by real-time PCR in samples of neocortex (Brodmann areas 4 and 17), cerebellar cortex, mediodorsal thalamus, and caudate nucleus of 22 depressed suicides and 22 matched sudden-death controls. Chromatin immunoprecipitation was used to measure enrichment levels of the repressive chromatin mark H3K9me3 in the prefrontal cortex. RESULTS We found a consistent downregulation of connexin genes in all regions examined, except in the cerebellum where an increase in the expression of CX30 was measured and using chromatin immunoprecipitation we observed an enrichment of H3K9me3 for both Cx30 and Cx43 in the prefrontal cortex. CONCLUSIONS Our study shows widespread astrocytic CX gene repression in depressed suicides that is mediated, at least in part, through epigenetic mechanisms. Taken together, these findings support the notion of widespread cerebral astrocytic dysfunction in major depressive disorder.
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Affiliation(s)
- Corina Nagy
- McGill Group for Suicide Studies, Douglas Mental Health University Institute (Ms Nagy, Drs Torres-Platas, Machawar, and Turecki); Departments of Neurology and Neurosurgery (Ms Nagy, Drs Torres-Platas, Machawar, and Turecki), Human Genetics (Dr Turecki), and Psychiatry (Drs Mechawar and Turecki), McGill University, Verdun, Québec, Canada
| | - Susana G. Torres-Platas
- McGill Group for Suicide Studies, Douglas Mental Health University Institute (Ms Nagy, Drs Torres-Platas, Machawar, and Turecki); Departments of Neurology and Neurosurgery (Ms Nagy, Drs Torres-Platas, Machawar, and Turecki), Human Genetics (Dr Turecki), and Psychiatry (Drs Mechawar and Turecki), McGill University, Verdun, Québec, Canada
| | - Naguib Mechawar
- McGill Group for Suicide Studies, Douglas Mental Health University Institute (Ms Nagy, Drs Torres-Platas, Machawar, and Turecki); Departments of Neurology and Neurosurgery (Ms Nagy, Drs Torres-Platas, Machawar, and Turecki), Human Genetics (Dr Turecki), and Psychiatry (Drs Mechawar and Turecki), McGill University, Verdun, Québec, Canada
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50
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Abstract
There has been increasing interest in the possibility that behavioral experience--in particular, exposure to stress--can be passed on to subsequent generations through heritable epigenetic modifications. The possibility remains highly controversial, however, reflecting the lack of standardized definitions of epigenetics and the limited empirical support for potential mechanisms of transgenerational epigenetic inheritance. Nonetheless, growing evidence supports a role for epigenetic regulation as a key mechanism underlying lifelong regulation of gene expression that mediates stress vulnerability. This Perspective provides an overview of the multiple meanings of the term epigenetic, discusses the challenges of studying epigenetic contributions to stress susceptibility--and the experimental evidence for and against the existence of such mechanisms--and outlines steps required for future investigations.
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