1
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Zhou C, Zhao D, Wu C, Wu Z, Zhang W, Chen S, Zhao X, Wu S. Role of histone deacetylase inhibitors in non-neoplastic diseases. Heliyon 2024; 10:e33997. [PMID: 39071622 PMCID: PMC11283006 DOI: 10.1016/j.heliyon.2024.e33997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
Background Epigenetic dysregulation has been implicated in the development and progression of a variety of human diseases, but epigenetic changes are reversible, and epigenetic enzymes and regulatory proteins can be targeted using small molecules. Histone deacetylase inhibitors (HDACis), as a class of epigenetic drugs, are widely used to treat various cancers and other diseases involving abnormal gene expression. Results Specially, HDACis have emerged as a promising strategy to enhance the therapeutic effect of non-neoplastic conditions, including neurological disorders, cardiovascular diseases, renal diseases, autoimmune diseases, inflammatory diseases, infectious diseases and rare diseases, along with their related mechanisms. However, their clinical efficacy has been limited by drug resistance and toxicity. Conclusions To date, most clinical trials of HDAC inhibitors have been related to the treatment of cancer rather than the treatment of non-cancer diseases, for which experimental studies are gradually underway. Discussions regarding non-neoplastic diseases often concentrate on specific disease types. Therefore, this review highlights the development of HDACis and their potential therapeutic applications in non-neoplastic diseases, either as monotherapy or in combination with other drugs or therapies.
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Affiliation(s)
- Chunxiao Zhou
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Dengke Zhao
- Harbin Medical University, Harbin, 150000, China
| | - Chunyan Wu
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Zhimin Wu
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Wen Zhang
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Shilv Chen
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Xindong Zhao
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Shaoling Wu
- Department of Hematology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China
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2
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Pereira M, Cruz MT, Fortuna A, Bicker J. Restoring the epigenome in Alzheimer's disease: advancing HDAC inhibitors as therapeutic agents. Drug Discov Today 2024; 29:104052. [PMID: 38830501 DOI: 10.1016/j.drudis.2024.104052] [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: 02/05/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/05/2024]
Abstract
Current treatment options for Alzheimer's disease (AD) focus on symptom relief rather than halting disease progression. In this context, targeting histone deacetylation emerges as a promising therapeutic alternative. Dysregulation of histone deacetylase (HDAC) activity is present in AD, contributing to cognitive decline. Pharmacological HDAC inhibition has shown benefits in preclinical models, namely reduced amyloid beta plaque formation, lower phosphorylation and aggregation of tau protein, greater microtubule stability, less neuroinflammation, and improved metabolic homeostasis and cell survival. Nonetheless, clinical trials evidenced limitations such as insufficient selectivity or blood-brain barrier penetration. Hence, future innovative strategies are required to enhance their efficacy/safety.
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Affiliation(s)
- Márcia Pereira
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal
| | - Maria Teresa Cruz
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Ana Fortuna
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal
| | - Joana Bicker
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal.
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3
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Davis N, Taylor B, Abelleira-Hervas L, Karimian-Marnani N, Aleksynas R, Syed N, Di Giovanni S, Palmisano I, Sastre M. Histone deacetylase-3 regulates the expression of the amyloid precursor protein and its inhibition promotes neuroregenerative pathways in Alzheimer's disease models. FASEB J 2024; 38:e23659. [PMID: 38733301 DOI: 10.1096/fj.202301762rr] [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: 08/30/2023] [Revised: 04/04/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024]
Abstract
HDAC3 inhibition has been shown to improve memory and reduce amyloid-β (Aβ) in Alzheimer's disease (AD) models, but the underlying mechanisms are unclear. We investigated the molecular effects of HDAC3 inhibition on AD pathology, using in vitro and ex vivo models of AD, based on our finding that HDAC3 expression is increased in AD brains. For this purpose, N2a mouse neuroblastoma cells as well as organotypic brain cultures (OBCSs) of 5XFAD and wild-type mice were incubated with various concentrations of the HDAC3 selective inhibitor RGFP966 (0.1-10 μM) for 24 h. Treatment with RGFP966 or HDAC3 knockdown in N2a cells was associated with an increase on amyloid precursor protein (APP) and mRNA expressions, without alterations in Aβ42 secretion. In vitro chromatin immunoprecipitation analysis revealed enriched HDAC3 binding at APP promoter regions. The increase in APP expression was also detected in OBCSs from 5XFAD mice incubated with 1 μM RGFP966, without changes in Aβ. In addition, HDAC3 inhibition resulted in a reduction of activated Iba-1-positive microglia and astrocytes in 5XFAD slices, which was not observed in OBCSs from wild-type mice. mRNA sequencing analysis revealed that HDAC3 inhibition modulated neuronal regenerative pathways related to neurogenesis, differentiation, axonogenesis, and dendritic spine density in OBCSs. Our findings highlight the complexity and diversity of the effects of HDAC3 inhibition on AD models and suggest that HDAC3 may have multiple roles in the regulation of APP expression and processing, as well as in the modulation of neuroinflammatory and neuroprotective genes.
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Affiliation(s)
- Nicola Davis
- Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London, UK
| | - Ben Taylor
- Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London, UK
| | | | | | - Robertas Aleksynas
- Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London, UK
| | - Nelofer Syed
- Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London, UK
| | - Simone Di Giovanni
- Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London, UK
| | - Ilaria Palmisano
- Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London, UK
- Department of Neuroscience, The Ohio State University, Columbus, Ohio, USA
- Department of Plastic and Reconstructive Surgery, The Ohio State University, Columbus, Ohio, USA
| | - Magdalena Sastre
- Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London, UK
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4
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Dalile B, Fuchs A, La Torre D, Vervliet B, Van Oudenhove L, Verbeke K. Colonic butyrate administration modulates fear memory but not the acute stress response in men: A randomized, triple-blind, placebo-controlled trial. Prog Neuropsychopharmacol Biol Psychiatry 2024; 131:110939. [PMID: 38199487 DOI: 10.1016/j.pnpbp.2024.110939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/22/2023] [Accepted: 01/05/2024] [Indexed: 01/12/2024]
Abstract
Short-chain fatty acids (SCFAs) are produced in the colon following bacterial fermentation of dietary fiber and are important microbiota-gut-brain messengers. However, their mechanistic role in modulating psychobiological processes that underlie the development of stress- and anxiety-related disorders is scarcely studied in humans. We have previously shown that colonic administration of a SCFA mixture (acetate, propionate, butyrate) lowers the cortisol response to stress in healthy participants, but does not impact fear conditioning and extinction. To disentangle the effects of the three main SCFAs, we examined whether butyrate alone would similarly modulate these psychobiological responses in a randomized, triple-blind, placebo-controlled intervention study in 71 healthy male participants (Mage = 25.2, MBMI = 22.7 [n = 35 butyrate group, n = 36 placebo group]). Colon-delivery capsules with pH-dependent coating were used to administer 5.28 g of butyrate or placebo daily for one week. Butyrate administration significantly increased serum butyrate concentrations without modulating serum acetate or propionate, nor fecal SCFAs. Butyrate administration also significantly modulated fear memory at the subjective but not physiological levels. Contrary to expectations, no changes in subjective nor neuroendocrine responses to acute stress were evident between the treatment groups from pre- to post-intervention. We conclude that colonic butyrate administration alone is not sufficient to modulate psychobiological stress responses, unlike administration of a SCFA mixture. The influence of colonic and systemic butyrate on fear memory and the persistence of fear extinction should be further systematically investigated in future studies.
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Affiliation(s)
- Boushra Dalile
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium; Leuven Brain Institute, KU Leuven, Leuven, Belgium; Laboratory of Biological Psychology, Brain & Cognition, Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.
| | - Annalena Fuchs
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium; Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Danique La Torre
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium; Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Bram Vervliet
- Leuven Brain Institute, KU Leuven, Leuven, Belgium; Laboratory of Biological Psychology, Brain & Cognition, Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium
| | - Lukas Van Oudenhove
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium; Leuven Brain Institute, KU Leuven, Leuven, Belgium; Cognitive and Affective Neuroscience Lab, Department of Psychological and Brain Sciences, Dartmouth College, Hanover, NH, USA
| | - Kristin Verbeke
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium
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Basavarajappa BS, Subbanna S. Unlocking the epigenetic symphony: histone acetylation's impact on neurobehavioral change in neurodegenerative disorders. Epigenomics 2024; 16:331-358. [PMID: 38321930 PMCID: PMC10910622 DOI: 10.2217/epi-2023-0428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/23/2024] [Indexed: 02/08/2024] Open
Abstract
Recent genomics and epigenetic advances have empowered the exploration of DNA/RNA methylation and histone modifications crucial for gene expression in response to stress, aging and disease. Interest in understanding neuronal plasticity's epigenetic mechanisms, influencing brain rewiring amid development, aging and neurodegenerative disorders, continues to grow. Histone acetylation dysregulation, a commonality in diverse brain disorders, has become a therapeutic focus. Histone acetyltransferases and histone deacetylases have emerged as promising targets for neurodegenerative disorder treatment. This review delves into histone acetylation regulation, potential therapies and future perspectives for disorders like Alzheimer's, Parkinson's and Huntington's. Exploring genetic-environmental interplay through models and studies reveals molecular changes, behavioral insights and early intervention possibilities targeting the epigenome in at-risk individuals.
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Affiliation(s)
- Balapal S Basavarajappa
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
- Molecular Imaging & Neuropathology Area, New York State Psychiatric Institute, NY 10032, USA
- Department of Psychiatry, Columbia University Irving Medical Center, NY 10032, USA
- Department of Psychiatry, New York University Langone Medical Center, NY 10016, USA
| | - Shivakumar Subbanna
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
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6
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Delphin N, Aust C, Griffiths L, Fernandez F. Epigenetic Regulation in Schizophrenia: Focus on Methylation and Histone Modifications in Human Studies. Genes (Basel) 2024; 15:272. [PMID: 38540331 PMCID: PMC10970389 DOI: 10.3390/genes15030272] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 02/17/2024] [Accepted: 02/19/2024] [Indexed: 06/15/2024] Open
Abstract
Despite extensive research over the last few decades, the etiology of schizophrenia (SZ) remains unclear. SZ is a pathological disorder that is highly debilitating and deeply affects the lifestyle and minds of those affected. Several factors (one or in combination) have been reported as contributors to SZ pathogenesis, including neurodevelopmental, environmental, genetic and epigenetic factors. Deoxyribonucleic acid (DNA) methylation and post-translational modification (PTM) of histone proteins are potentially contributing epigenetic processes involved in transcriptional activity, chromatin folding, cell division and apoptotic processes, and DNA damage and repair. After establishing a summary of epigenetic processes in the context of schizophrenia, this review aims to highlight the current understanding of the role of DNA methylation and histone PTMs in this disorder and their potential roles in schizophrenia pathophysiology and pathogenesis.
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Affiliation(s)
- Natasha Delphin
- School of Health and Behavioural Sciences, Faculty of Health Sciences, Australian Catholic University, 1100 Nudgee Rd, Banyo, QLD 4014, Australia; (N.D.)
| | - Caitlin Aust
- School of Health and Behavioural Sciences, Faculty of Health Sciences, Australian Catholic University, 1100 Nudgee Rd, Banyo, QLD 4014, Australia; (N.D.)
| | - Lyn Griffiths
- Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, 60 Musk Ave, Kelvin Grove, QLD 4059, Australia;
| | - Francesca Fernandez
- School of Health and Behavioural Sciences, Faculty of Health Sciences, Australian Catholic University, 1100 Nudgee Rd, Banyo, QLD 4014, Australia; (N.D.)
- Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, 60 Musk Ave, Kelvin Grove, QLD 4059, Australia;
- Healthy Brain and Mind Research Centre, Australian Catholic University, Melbourne, VIC 3000, Australia
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7
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Zhang L, Zhu B, Zhou X, Ning H, Zhang F, Yan B, Chen J, Ma T. ZNF787 and HDAC1 Mediate Blood-Brain Barrier Permeability in an In Vitro Model of Alzheimer's Disease Microenvironment. Neurotox Res 2024; 42:12. [PMID: 38329647 DOI: 10.1007/s12640-024-00693-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 12/19/2023] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
The permeability of the blood-brain barrier (BBB) is increased in Alzheimer's disease (AD). This plays a key role in the instigation and maintenance of chronic inflammation during AD. Experiments using AD models showed that the increased permeability of the BBB was mainly caused by the decreased expression of tight junction-related proteins occludin and claudin-5. In this study, we found that ZNF787 and HDAC1 were upregulated in β-amyloid (Aβ)1-42-incubated endothelial cells, resulting in increased BBB permeability. Conversely, the silencing of ZNF787 and HDAC1 by RNAi led to reduced BBB permeability. The silencing of ZNF787 and HDAC1 enhanced the expression of occludin and claudin-5. Mechanistically, ZNF787 binds to promoter regions for occludin and claudin-5 and functions as a transcriptional regulator. Furthermore, we demonstrate that ZNF787 interacts with HDAC1, and this resulted in the downregulation of the expression of genes encoding tight junction-related proteins to increase in BBB permeability. Taken together, our study identifies critical roles for the interaction between ZNF787 and HDAC1 in regulating BBB permeability and the pathogenesis of AD.
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Affiliation(s)
- Lu Zhang
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, China
| | - Baicheng Zhu
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, China
| | - Xinxin Zhou
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110034, China
| | - Hao Ning
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, China
| | - Fengying Zhang
- Department of Neurology, Affiliated Nanhua Hospital, University of South China, Hengyang, 421001, China
| | - Bingju Yan
- Department of Cardiology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121000, China
| | - Jiajia Chen
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Teng Ma
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, China.
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8
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Gao J, Liu W, Liu J, Hao N, Pei J, Zhang L. The Role of Acetylation and Methylation of Rat Hippocampal Histone H3 in the Mechanism of Aluminum-Induced Neurotoxicity. Neurochem Res 2024; 49:441-452. [PMID: 37897558 DOI: 10.1007/s11064-023-04045-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/30/2023]
Abstract
Aluminum is a known neurotoxin and a major environmental contributor to neurodegenerative diseases such as Alzheimer's disease (AD). We uesd a subchronic aluminum chloride exposure model in offspring rats by continuously treating them with AlCl3 solution from the date of birth until day 90 in this research. Then evaluated the neurobehavioral changes in rats, observed the ultrastructural changes of hippocampal synapses and neurons, and examined the level of hippocampal acetylated histone H3 (H3ac), the activity and protein expression of hippocampal HAT1 and G9a, and the protein expression level of H3K9 dimethylation (H3K9me2). The findings demonstrated that aluminum-treated offspring rats had impaired learning and memory abilities as well as ultrastructural alterations in hippocampal synapses and neurons. The level of histone H3ac was decreased along with decreased protein expression and activity of HAT1, while level of H3K9me2 was increased along with increased protein expression and activity of G9a.
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Affiliation(s)
- Jie Gao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Wei Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Jiaqi Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Niping Hao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Jing Pei
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Lifeng Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China.
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9
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Ndukwe K, Serrano PA, Rockwell P, Xie L, Figueiredo-Pereira M. Histone deacetylase inhibitor RG2833 has therapeutic potential for Alzheimer's disease in females. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.26.573348. [PMID: 38234827 PMCID: PMC10793399 DOI: 10.1101/2023.12.26.573348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Nearly two-thirds of patients with Alzheimer's are women. Identifying therapeutics specific for women is critical to lowering their elevated risk for developing this major cause of adult dementia. Moreover, targeting epigenetic processes that regulate multiple cellular pathways is advantageous given Alzheimer's multifactorial nature. Histone acetylation is an epigenetic process heavily involved in memory consolidation. Its disruption is linked to Alzheimer's. Through our computational studies, we predicted that the investigational drug RG2833 (N-[6-(2-aminoanilino)-6-oxohexyl]-4-methylbenzamide) has repurposing potential for Alzheimer's. RG2833 is a histone deacetylase HDAC1/3 inhibitor that is orally bioavailable and permeates the blood-brain-barrier. We investigated the RG2833 therapeutic potential in TgF344-AD rats, which are a model of Alzheimer's that exhibits age-dependent progression, thus mimicking this aspect of Alzheimer's patients that is difficult to establish in animal models. We investigated the RG2833 effects on cognitive performance, gene expression, and AD-like pathology in 11-month TgF344-AD female and male rats. A total of 89 rats were used: wild type n = 45 (17 females, 28 males), and TgF344-AD n = 44 (24 females, 20 males)] across multiple cohorts. No obvious toxicity was detected in the TgF344-AD rats up to 6 months of RG2833-treatment starting at 5 months of age administering the drug in rodent chow at ∼30mg/kg of body weight. We started treatment early in the course of pathology when therapeutic intervention is predicted to be more effective than in later stages of the disease. The drug-treatment significantly mitigated hippocampal-dependent spatial memory deficits in 11-month TgF344-AD females but not in males, compared to wild type littermates. This female sex-specific drug effect has not been previously reported. RG2833-treatment failed to ameliorate amyloid beta accumulation and microgliosis in female and male TgF344-AD rats. However, RNAseq analysis of hippocampal tissue from TgF344-AD rats showed that drug-treatment in females upregulated the expression of immediate early genes, such as Arc, Egr1 and c-Fos, and other genes involved in synaptic plasticity and memory consolidation. Remarkably, out of 17,168 genes analyzed for each sex, no significant changes in gene expression were detected in males at P < 0.05, false discovery rate < 0.05, and fold-change ≥ 1.5. Our data suggest that histone modifying therapeutics such as RG2833 improve cognitive behavior by modulating the expression of immediate early, neuroprotective and synaptic plasticity genes. Our preclinical study supports that RG2833 has therapeutic potential specifically for female Alzheimer's patients. RG2833 evaluations using other AD-related models is necessary to confirm our findings.
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Centeno MV, Alam MS, Haldar K, Apkarian AV. Long-range action of an HDAC inhibitor treats chronic pain in a spared nerve injury rat model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.13.571583. [PMID: 38168166 PMCID: PMC10760082 DOI: 10.1101/2023.12.13.571583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Histone deacetylase inhibitors (HDACi) that modulate epigenetic regulation and are approved for treating rare cancers have, in disease models, also been shown to mitigate neurological conditions, including chronic pain. They are of interest as non-opioid treatments, but achieving long-term efficacy with limited dosing has remained elusive. Here we utilize a triple combination formulation (TCF) comprised of a pan-HDACi vorinostat (Vo at its FDA-approved daily dose of 50mg/Kg), the caging agent 2-hydroxypropyl-β-cyclodextrin (HPBCD) and polyethylene glycol (PEG) known to boost plasma and brain exposure and efficacy of Vo in mice and rats, of various ages, spared nerve injury (SNI) model of chronic neuropathic pain. Administration of the TCF (but not HPBCD and PEG) decreased mechanical allodynia for 4 weeks without antagonizing weight, anxiety, or mobility. This was achieved at less than 1% of the total dose of Vo approved for 4 weeks of tumor treatment and associated with decreased levels of major inflammatory markers and microglia in ipsilateral (but not contralateral) spinal cord regions. A single TCF injection was sufficient for 3-4 weeks of efficacy: this was mirrored in repeat injections, specific for the injured paw and not seen on sham treatment. Pharmacodynamics in an SNI mouse model suggested pain relief was sustained for days to weeks after Vo elimination. Doubling Vo in a single TCF injection proved effectiveness was limited to male rats, where the response amplitude tripled and remained effective for > 2 months, an efficacy that outperforms all currently available chronic pain pharmacotherapies. Together, these data suggest that through pharmacological modulation of Vo, the TCF enables single-dose effectiveness with extended action, reduces long-term HDACi dosage, and presents excellent potential to develop as a non-opioid treatment option for chronic pain.
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Affiliation(s)
- Maria Virginia Centeno
- Center for Translational Pain Research, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611
- Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611
| | - Md Suhail Alam
- Department of Biological Sciences, Boler-Parseghian Center for Rare and Neglected Diseases, University of Notre Dame, Notre Dame, Indiana 46556
| | - Kasturi Haldar
- Department of Biological Sciences, Boler-Parseghian Center for Rare and Neglected Diseases, University of Notre Dame, Notre Dame, Indiana 46556
| | - Apkar Vania Apkarian
- Center for Translational Pain Research, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611
- Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611
- Department of Anesthesia, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611
- Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611
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11
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Kuijer EJ, Steenbergen L. The microbiota-gut-brain axis in hippocampus-dependent learning and memory: current state and future challenges. Neurosci Biobehav Rev 2023; 152:105296. [PMID: 37380040 DOI: 10.1016/j.neubiorev.2023.105296] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 05/15/2023] [Accepted: 06/23/2023] [Indexed: 06/30/2023]
Abstract
A fundamental shift in neuroscience suggests bidirectional interaction of gut microbiota with the healthy and dysfunctional brain. This microbiota-gut-brain axis has mainly been investigated in stress-related psychopathology (e.g. depression, anxiety). The hippocampus, a key structure in both the healthy brain and psychopathologies, is implicated by work in rodents that suggests gut microbiota substantially impact hippocampal-dependent learning and memory. However, understanding microbiota-hippocampus mechanisms in health and disease, and translation to humans, is hampered by the absence of a coherent evaluative approach. We review the current knowledge regarding four main gut microbiota-hippocampus routes in rodents: through the vagus nerve; via the hypothalamus-pituitary-adrenal-axis; by metabolism of neuroactive substances; and through modulation of host inflammation. Next, we suggest an approach including testing (biomarkers of) the four routes as a function of the influence of gut microbiota (composition) on hippocampal-dependent (dys)functioning. We argue that such an approach is necessary to proceed from the current state of preclinical research to beneficial application in humans to optimise microbiota-based strategies to treat and enhance hippocampal-dependent memory (dys)functions.
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Affiliation(s)
- Eloise J Kuijer
- Leiden University Medical Centre, Leiden, the Netherlands; Department of Life Sciences, University of Bath, United Kingdom.
| | - Laura Steenbergen
- Clinical Psychology Unit, Leiden University & Leiden Institute for Brain and Cognition, Leiden, the Netherlands
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12
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Ricciardi NR, Modarresi F, Lohse I, Andrade NS, Newman IR, Brown JM, Borja C, Marples B, Wahlestedt CR, Volmar CH. Investigating the Synergistic Potential of Low-Dose HDAC3 Inhibition and Radiotherapy in Alzheimer's Disease Models. Mol Neurobiol 2023; 60:4811-4827. [PMID: 37171575 PMCID: PMC10293392 DOI: 10.1007/s12035-023-03373-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 04/28/2023] [Indexed: 05/13/2023]
Abstract
We have previously shown that histone deacetylase (HDAC) inhibition and cranial radiotherapy (RT) independently improve molecular and behavioral Alzheimer's disease (AD)-like phenotypes. In the present study, we investigate the synergistic potential of using both RT and HDACi as a low-dose combination therapy (LDCT) to maximize disease modification (reduce neuroinflammation and amyloidogenic APP processing, increase neurotrophic gene expression) while minimizing the potential for treatment-associated side effects.LDCT consisted of daily administration of the HDAC3 inhibitor RGFP966 and/or bi-weekly cranial x-irradiation. Amyloid-beta precursor protein (APP) processing and innate immune response to LDCT were assessed in vitro and in vivo using human and murine cell models and 3xTg-AD mice. After 2 months of LDCT in mice, behavioral analyses as well as expression and modification of key AD-related targets (Aβ, tau, Csf1r, Bdnf, etc.) were assessed in the hippocampus (HIP) and prefrontal cortex (PFC).LDCT induced a tolerant, anti-inflammatory innate immune response in microglia and increased non-amyloidogenic APP processing in vitro. Both RT and LDCT improved the rate of learning and spatial memory in the Barnes maze test. LDCT induced a unique anti-AD HIP gene expression profile that included upregulation of neurotrophic genes and downregulation of inflammation-related genes. RT lowered HIP Aβ42/40 ratio and Bace1 protein, while LDCT lowered PFC p-tau181 and HIP Bace1 levels.Our study supports the rationale for combining complementary therapeutic approaches at low doses to target multifactorial AD pathology synergistically. Namely, LDCT with RGFP966 and cranial RT shows disease-modifying potential against a wide range of AD-related hallmarks.
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Affiliation(s)
- Natalie R. Ricciardi
- Department of Biochemistry and Molecular Biology, University of Miami, Miami, FL 33136 USA
- Department of Psychiatry and Behavioral Sciences, University of Miami, Miami, FL 33136 USA
- Center for Therapeutic Innovation, University of Miami, Miami, FL 33136 USA
| | - Farzaneh Modarresi
- Department of Psychiatry and Behavioral Sciences, University of Miami, Miami, FL 33136 USA
| | - Ines Lohse
- Department of Psychiatry and Behavioral Sciences, University of Miami, Miami, FL 33136 USA
- Center for Therapeutic Innovation, University of Miami, Miami, FL 33136 USA
| | - Nadja S. Andrade
- Department of Biochemistry and Molecular Biology, University of Miami, Miami, FL 33136 USA
- Center for Therapeutic Innovation, University of Miami, Miami, FL 33136 USA
| | - Ian R. Newman
- Department of Biochemistry and Molecular Biology, University of Miami, Miami, FL 33136 USA
| | - Jonathan M. Brown
- Department of Psychiatry and Behavioral Sciences, University of Miami, Miami, FL 33136 USA
- Center for Therapeutic Innovation, University of Miami, Miami, FL 33136 USA
| | - Caroline Borja
- Center for Therapeutic Innovation, University of Miami, Miami, FL 33136 USA
| | - Brian Marples
- Department of Radiation Oncology, University of Miami, Miami, FL 33136 USA
| | - Claes R. Wahlestedt
- Department of Biochemistry and Molecular Biology, University of Miami, Miami, FL 33136 USA
- Department of Psychiatry and Behavioral Sciences, University of Miami, Miami, FL 33136 USA
- Center for Therapeutic Innovation, University of Miami, Miami, FL 33136 USA
| | - Claude-Henry Volmar
- Department of Psychiatry and Behavioral Sciences, University of Miami, Miami, FL 33136 USA
- Center for Therapeutic Innovation, University of Miami, Miami, FL 33136 USA
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Yang S, Fan L, Zhang R, Song C, Shi J, Wang J, Zhang P, Wang H, Zhang Y. Smilagenin induces expression and epigenetic remodeling of BDNF in alzheimer's disease. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 118:154956. [PMID: 37499345 DOI: 10.1016/j.phymed.2023.154956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/22/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023]
Abstract
BACKGROUND Smilagenin (SMI) is a lipid-soluble steroidal sapogenin, extracted from traditional Chinses medicinal herbs Radix Asparagi, which is extracted from the dry root of Asparagus cochinchinensis (Lour.) Merr. We previously found that SMI significantly increased brain-derived neurotrophic factor (BDNF) expression in Aβ-intoxicated SH-SY5Y cells. METHODS In this study, we performed behavioral tests to analyze cognitive function of WT and APP/PS1 mice treated with or without SMI, and found that SMI could significantly improve the learning and memory ability of APP/PS1 mice. Moreover, immunofluorescence and ELISA results showed that SMI pretreatment could effectively reduce the deposition of β-amyloid plaques in the cortex and hippocampus of APP/PS1 mice (26 mg/kg/day for 60 days) and inhibit the secretion of Aβ1-42 in N2a/APPswe cells (10 μM concentration for 24 hours). RESULTS Mechanistically, SMI enhanced BDNF mRNA expression, elevated the global level of H3AC and H4AC, and increased the expression of P300 in AD models. Furthermore, chromatin immunoprecipitation results showed that SMI could increase the levels of H3AC and H4AC at the promoter of BDNF promoter Ⅱ and Ⅳ, indicating that SMI epigenetically regulates BDNF expression through HAT enhancement. To further verify the critical role of P300 by which SMI upregulated histone acetylation in BDNF, AD mice were treated with SMI and C646 simultaneously. Behavioral experiments showed that the improvement effects of SMI on cognitive impairment were abolished after P300 inhibition in APP/PS1 mice. CONCLUSIONS Our research for the first time demonstrated that SMI showed neuroprotective effects by increasing the expression of P300 protein, thus upregulating histone acetylation levels in the promoter region of BDNF and promoting its transcription. Our findings provide an important theoretical basis for the treatment of Alzheimer's disease with SMI extracted from Asparagus cochinchinensis (Lour.) Merr.
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Affiliation(s)
- Shuangshuang Yang
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Central Laboratory, Shanghai Xuhui Central Hospital, Shanghai 200031, China; Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; Shanghai Engineering Research Center of Phase I Clinical Research & Quality Consistency Evaluation for Drugs, Shanghai 200031, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Lei Fan
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Rui Zhang
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Chenghuan Song
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jiyun Shi
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jing Wang
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Pingao Zhang
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Hao Wang
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Yongfang Zhang
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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Lin Y, Lin A, Cai L, Huang W, Yan S, Wei Y, Ruan X, Fang W, Dai X, Cheng J, Zhang J, Chen W, Ye Q, Chen X, Zhang J. ACSS2-dependent histone acetylation improves cognition in mouse model of Alzheimer's disease. Mol Neurodegener 2023; 18:47. [PMID: 37438762 DOI: 10.1186/s13024-023-00625-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 05/15/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND Nuclear acetyl-CoA pools govern histone acetylation that controls synaptic plasticity and contributes to cognitive deterioration in patients with Alzheimer's disease (AD). Nuclear acetyl-CoA pools are generated partially from local acetate that is metabolized by acetyl-CoA synthetase 2 (ACSS2). However, the underlying mechanism of histone acetylation dysregulation in AD remains poorly understood. METHODS We detected ACSS2 expression and histone acetylation levels in the brains of AD patients and 5 × FAD mice. When we altered ACSS2 expression by injecting adeno-associated virus into the dorsal hippocampus of 5 × FAD mice and replenished ACSS2 substrate (acetate), we observed changes in cognitive function by Morris water maze. We next performed RNA-seq, ChIP-qPCR, and electrophysiology to study molecular mechanism underlying ACSS2-mediated spatial learning and memory in 5 × FAD mice. RESULTS We reported that ACSS2 expression and histone acetylation (H3K9, H4K12) were reduced in the hippocampus and prefrontal cortex of 5 × FAD mice. Reduced ACSS2 levels were also observed in the temporal cortex of AD patients. 5 × FAD mice exhibited a low enrichment of acetylated histones on the promoters of NMDARs and AMPARs, together with impaired basal and activity-dependent synaptic plasticity, all of which were rescued by ACSS2 upregulation. Moreover, acetate replenishment enhanced ac-H3K9 and ac-H4K12 in 5 × FAD mice, leading to an increase of NMDARs and AMPARs and a restoration of synaptic plasticity and cognitive function in an ACSS2-dependent manner. CONCLUSION ACSS2 is a key molecular switch of cognitive impairment and that targeting ACSS2 or acetate administration may serve as a novel therapeutic strategy for the treatment of intermediate or advanced AD. Nuclear acetyl-CoA pools are generated partly from local acetate that is metabolized by acetyl-CoA synthetase 2 (ACSS2). Model depicts that ACSS2 expression is downregulated in the brains of 5×FAD model mice and AD patients. Of note, ACSS2 downregulation mediates a reduction in ionotropic glutamate receptor expression through histone acetylation, which exacerbates synaptic plasticity impairment in AD. These deficits can be rescued by ACSS2 upregulation or acetate supplementation (GTA, an FDA-approved food additive), which may serve as a promising therapeutic strategy for AD treatment.
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Affiliation(s)
- Yingbin Lin
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
- Department of Neurology and Neurosurgery, Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Anlan Lin
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Lili Cai
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Weibin Huang
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
- Department of Neurology and Neurosurgery, Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Shanzhi Yan
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Yuanxiang Wei
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Xinglin Ruan
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Wenting Fang
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Xiaoman Dai
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Jinbo Cheng
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Jie Zhang
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Wanjin Chen
- Department of Neurology and Neurosurgery, Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Qinyong Ye
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Xiaochun Chen
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China.
| | - Jing Zhang
- Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, Fuzhou, China.
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Zhang Y, Wei R, Ni M, Wu Q, Li Y, Ge Y, Kong X, Li X, Chen G. An enriched environment improves maternal sleep deprivation-induced cognitive deficits and synaptic plasticity via hippocampal histone acetylation. Brain Behav 2023; 13:e3018. [PMID: 37073496 PMCID: PMC10275536 DOI: 10.1002/brb3.3018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/20/2023] [Accepted: 04/02/2023] [Indexed: 04/20/2023] Open
Abstract
INTRODUCTION Growing evidence clearly demonstrates that maternal rodents exposure to sleep deprivation (SD) during late pregnancy impairs learning and memory in their offspring. Epigenetic mechanisms, particularly histone acetylation, are known to be involved in synaptic plasticity, learning, and memory. We hypothesize that the cognitive decline induced by SD during late pregnancy is associated with histone acetylation dysfunction, and this effect could be reversed by an enriched environment (EE). METHODS In the present study, pregnant CD-1 mice were exposed to SD during the third trimester of pregnancy. After weaning, all offspring were randomly assigned to two subgroups in either a standard environment or an EE. When offspring were 3 months old, the Morris water maze was used to evaluate hippocampal-dependent learning and memory ability. Molecular biological techniques, including western blot and real-time fluorescence quantitative polymerase chain reaction, were used to examine the histone acetylation pathway and synaptic plasticity markers in the hippocampus of offspring. RESULTS The results showed that the following were all reversed by EE treatment: maternal SD (MSD)-induced cognitive deficits including spatial learning and memory; histone acetylation dysfunction including increased histone deacetylase 2 (HDAC2) and decreased histone acetyltransferase (CBP), and the acetylation levels of H3K9 and H4K12; synaptic plasticity dysfunction including decreased brain-derived neurotrophic factor; and postsynaptic density protein-95. CONCLUSIONS Our findings suggested that MSD could damage learning ability and memory in offspring via the histone acetylation pathway. This effect could be reversed by EE treatment.
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Affiliation(s)
- Yue‐Ming Zhang
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Ru‐Meng Wei
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Ming‐Zhu Ni
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Qi‐Tao Wu
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Yun Li
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Yi‐Jun Ge
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Xiao‐Yi Kong
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Xue‐Yan Li
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
| | - Gui‐Hai Chen
- Department of Neurology (Sleep Disorders)the Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiP. R. China
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Bhatnagar A, Krick K, Karisetty BC, Armour EM, Heller EA, Elefant F. Tip60's Novel RNA-Binding Function Modulates Alternative Splicing of Pre-mRNA Targets Implicated in Alzheimer's Disease. J Neurosci 2023; 43:2398-2423. [PMID: 36849418 PMCID: PMC10072303 DOI: 10.1523/jneurosci.2331-22.2023] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/08/2023] [Accepted: 02/13/2023] [Indexed: 03/01/2023] Open
Abstract
The severity of Alzheimer's disease (AD) progression involves a complex interplay of genetics, age, and environmental factors orchestrated by histone acetyltransferase (HAT)-mediated neuroepigenetic mechanisms. While disruption of Tip60 HAT action in neural gene control is implicated in AD, alternative mechanisms underlying Tip60 function remain unexplored. Here, we report a novel RNA binding function for Tip60 in addition to its HAT function. We show that Tip60 preferentially interacts with pre-mRNAs emanating from its chromatin neural gene targets in the Drosophila brain and this RNA binding function is conserved in human hippocampus and disrupted in Drosophila brains that model AD pathology and in AD patient hippocampus of either sex. Since RNA splicing occurs co-transcriptionally and alternative splicing (AS) defects are implicated in AD, we investigated whether Tip60-RNA targeting modulates splicing decisions and whether this function is altered in AD. Replicate multivariate analysis of transcript splicing (rMATS) analysis of RNA-Seq datasets from wild-type and AD fly brains revealed a multitude of mammalian-like AS defects. Strikingly, over half of these altered RNAs are identified as bona-fide Tip60-RNA targets that are enriched for in the AD-gene curated database, with some of these AS alterations prevented against by increasing Tip60 in the fly brain. Further, human orthologs of several Tip60-modulated splicing genes in Drosophila are well characterized aberrantly spliced genes in human AD brains, implicating disruption of Tip60's splicing function in AD pathogenesis. Our results support a novel RNA interaction and splicing regulatory function for Tip60 that may underly AS impairments that hallmark AD etiology.SIGNIFICANCE STATEMENT Alzheimer's disease (AD) has recently emerged as a hotbed for RNA alternative splicing (AS) defects that alter protein function in the brain yet causes remain unclear. Although recent findings suggest convergence of epigenetics with co-transcriptional AS, whether epigenetic dysregulation in AD pathology underlies AS defects remains unknown. Here, we identify a novel RNA interaction and splicing regulatory function for Tip60 histone acetyltransferase (HAT) that is disrupted in Drosophila brains modeling AD pathology and in human AD hippocampus. Importantly, mammalian orthologs of several Tip60-modulated splicing genes in Drosophila are well characterized aberrantly spliced genes in human AD brain. We propose that Tip60-mediated AS modulation is a conserved critical posttranscriptional step that may underlie AS defects now characterized as hallmarks of AD.
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Affiliation(s)
- Akanksha Bhatnagar
- Department of Biology, Drexel University, Philadelphia, Pennsylvania 19104
| | - Keegan Krick
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | | | - Ellen M Armour
- Department of Biology, Drexel University, Philadelphia, Pennsylvania 19104
| | - Elizabeth A Heller
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Felice Elefant
- Department of Biology, Drexel University, Philadelphia, Pennsylvania 19104
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Luo B, Chen J, Zhou GF, Xie XY, Tang J, Wen QX, Song L, Xie SQ, Long Y, Chen GJ, Hu XT. Apicidin attenuates memory deficits by reducing the Aβ load in APP/PS1 mice. CNS Neurosci Ther 2023; 29:1300-1311. [PMID: 36708130 PMCID: PMC10068467 DOI: 10.1111/cns.14102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 01/29/2023] Open
Abstract
AIMS Amyloid beta (Aβ) is an important pathological feature of Alzheimer's disease (AD). A disintegrin and metalloproteinase 10 (ADAM10) can reduce the production of toxic Aβ by activating the nonamyloidogenic pathway of amyloid precursor protein (APP). We previously found that apicidin, which is a histone deacetylase (HDAC) inhibitor, can promote the expression of ADAM10 and reduce the production of Aβ in vitro. This study was designed to determine the potential of apicidin treatment to reverse learning and memory impairments in an AD mouse model and the possible correlation of these effects with ADAM10. METHODS Nine-month-old APP/PS1 mice and C57 mice received intraperitoneal injections of apicidin or vehicle for 2 months. At 11 months of age, we evaluated the memory performance of mice with Morris water maze (MWM) and context fear conditioning tests. The Aβ levels were assessed in mouse brain using the immunohistochemical method and ELISA. The expression of corresponding protein involved in proteolytic processing of APP and the phosphorylation of tau were assessed by Western blotting. RESULTS Apicidin reversed the deficits of spatial reference memory and contextual fear memory, attenuated the formation of Aβ-enriched plaques, and decreased the levels of soluble and insoluble Aβ40/42 in APP/PS1 mice. Moreover, apicidin significantly increased the expression of ADAM10, improved the level of sAPPα, and reduced the production of sAPPβ, but did not affect the levels of phosphorylated tau in APP/PS1 mice. CONCLUSION Apicidin significantly improves the AD symptoms of APP/PS1 mice by regulating the expression of ADAM10, which may contribute to decreasing the levels of Aβ rather than decreasing the phosphorylation of tau.
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Affiliation(s)
- Biao Luo
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Jian Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Gui-Feng Zhou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Xiao-Yong Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Jing Tang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Qi-Xin Wen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Li Song
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Shi-Qi Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Yan Long
- Department of Health Management, Daping Hospital, Army Medical University, Chongqing, China
| | - Guo-Jun Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Xiao-Tong Hu
- Department of Health Management, Daping Hospital, Army Medical University, Chongqing, China.,Department of Neurology, The Ninth People's Hospital of Chongqing, Chongqing, China
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HDAC1-mediated regulation of GABA signaling within the lateral septum facilitates long-lasting social fear extinction in male mice. Transl Psychiatry 2023; 13:10. [PMID: 36646675 PMCID: PMC9842607 DOI: 10.1038/s41398-023-02310-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 01/18/2023] Open
Abstract
Social anxiety disorder (SAD) is caused by traumatic social experiences. It is characterized by intense fear and avoidance of social contexts, which can be robustly mimicked by the social fear conditioning (SFC) paradigm. The extinction phase of the SFC paradigm is akin to exposure therapy for SAD and requires learning to disassociate the trauma with the social context. Learning-induced acetylation of histones is critical for extinction memory formation and its endurance. Although class I histone deacetylases (HDACs) regulate the abovementioned learning process, there is a lack of clarity in isoforms and spatial specificity in HDAC function in social learning. Utilizing the SFC paradigm, we functionally characterized the role of HDAC1, specifically in the lateral septum (LS), in regulating the formation of long-term social fear extinction memory. We measured a local increase in activity-inducing HDAC1 phosphorylation at serine residues of social fear-conditioned (SFC+) mice in response to the extinction of social fear. We also found that LS-HDAC1 function negatively correlates with acute social fear extinction learning using pharmacological and viral approaches. Further, inhibition of LS-HDAC1 enhanced the expression of the GABA-A receptor β1 subunit (Gabrb1) in SFC+ mice, and activation of GABA-A receptors facilitated acute extinction learning. Finally, the facilitation of extinction learning by HDAC1 inhibition or GABA-A receptor activation within the LS led to the formation of long-lasting extinction memory, which persisted even 30 days after extinction. Our results show that HDAC1-mediated regulation of GABA signaling in the LS is crucial for the formation of long-lasting social fear extinction memory.
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Shanmukha KD, Paluvai H, Lomada SK, Gokara M, Kalangi SK. Histone deacetylase (HDACs) inhibitors: Clinical applications. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 198:119-152. [DOI: 10.1016/bs.pmbts.2023.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Multifaceted role of synbiotics as nutraceuticals, therapeutics and carrier for drug delivery. Chem Biol Interact 2022; 368:110223. [DOI: 10.1016/j.cbi.2022.110223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 09/29/2022] [Accepted: 10/12/2022] [Indexed: 11/15/2022]
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Comparative Study of the Effect of a DNA Methyltransferase Inhibitor and a Histone Deacetylase Inhibitor on Memory Formation Processes in Anterograde Amnesia. Bull Exp Biol Med 2022; 174:1-6. [PMID: 36437324 DOI: 10.1007/s10517-022-05636-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Indexed: 11/29/2022]
Abstract
The participation of DNA methylation and histone acetylation in the mechanisms of anterograde amnesia and memory recovery was studied on grape snails trained in conditioned food aversion. Anterograde amnesia developed 10 days after memory reconsolidation impairment with an NMDA glutamate receptor antagonist and was characterized by long-term memory formation impairment upon repeated training. DNA methyltransferase inhibitor injections to snails 1 h before repeated training, as well as 15 min or 4 h after repeated training, caused rapid formation of memory that persisted for at least 10 days. Injections of histone deacetylase inhibitor before repeated training also induced the formation of a stable long-term memory. However, administration of histone deacetylase inhibitor 15 min after repeated training initiated a temporary memory recovery. Injections of the inhibitor 4 h after repeated training were ineffective. These results indicate that histone-dependent chromatin remodeling and DNA methylation are selectively involved in the mechanisms of anterograde amnesia and memory recovery.
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van Zundert B, Montecino M. Epigenetic Changes and Chromatin Reorganization in Brain Function: Lessons from Fear Memory Ensemble and Alzheimer’s Disease. Int J Mol Sci 2022; 23:ijms232012081. [PMID: 36292933 PMCID: PMC9602769 DOI: 10.3390/ijms232012081] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/03/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
Healthy brain functioning in mammals requires a continuous fine-tuning of gene expression. Accumulating evidence over the last three decades demonstrates that epigenetic mechanisms and dynamic changes in chromatin organization are critical components during the control of gene transcription in neural cells. Recent genome-wide analyses show that the regulation of brain genes requires the contribution of both promoter and long-distance enhancer elements, which must functionally interact with upregulated gene expression in response to physiological cues. Hence, a deep comprehension of the mechanisms mediating these enhancer–promoter interactions (EPIs) is critical if we are to understand the processes associated with learning, memory and recall. Moreover, the onset and progression of several neurodegenerative diseases and neurological alterations are found to be strongly associated with changes in the components that support and/or modulate the dynamics of these EPIs. Here, we overview relevant discoveries in the field supporting the role of the chromatin organization and of specific epigenetic mechanisms during the control of gene transcription in neural cells from healthy mice subjected to the fear conditioning paradigm, a relevant model to study memory ensemble. Additionally, special consideration is dedicated to revising recent results generated by investigators working with animal models and human postmortem brain tissue to address how changes in the epigenome and chromatin architecture contribute to transcriptional dysregulation in Alzheimer’s disease, a widely studied neurodegenerative disease. We also discuss recent developments of potential new therapeutic strategies involving epigenetic editing and small chromatin-modifying molecules (or epidrugs).
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Affiliation(s)
- Brigitte van Zundert
- Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile
- CARE Biomedical Research Center, Santiago 8330005, Chile
- Correspondence: (B.v.Z.); (M.M.)
| | - Martin Montecino
- Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile
- Millennium Institute Center for Genome Regulation CRG, Santiago 8370186, Chile
- Correspondence: (B.v.Z.); (M.M.)
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23
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Gao J, Luo Y, Lu Y, Wu X, Chen P, Zhang X, Han L, Qiu M, Shen W. Epigenetic regulation of GABAergic differentiation in the developing brain. Front Cell Neurosci 2022; 16:988732. [PMID: 36212693 PMCID: PMC9539098 DOI: 10.3389/fncel.2022.988732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
In the vertebrate brain, GABAergic cell development and neurotransmission are important for the establishment of neural circuits. Various intrinsic and extrinsic factors have been identified to affect GABAergic neurogenesis. However, little is known about the epigenetic control of GABAergic differentiation in the developing brain. Here, we report that the number of GABAergic neurons dynamically changes during the early tectal development in the Xenopus brain. The percentage of GABAergic neurons is relatively unchanged during the early stages from stage 40 to 46 but significantly decreased from stage 46 to 48 tadpoles. Interestingly, the histone acetylation of H3K9 is developmentally decreased from stage 42 to 48 (about 3.5 days). Chronic application of valproate acid (VPA), a broad-spectrum histone deacetylase (HDAC) inhibitor, at stage 46 for 48 h increases the acetylation of H3K9 and the number of GABAergic cells in the optic tectum. VPA treatment also reduces apoptotic cells. Electrophysiological recordings show that a VPA induces an increase in the frequency of mIPSCs and no changes in the amplitude. Behavioral studies reveal that VPA decreases swimming activity and visually guided avoidance behavior. These findings extend our understanding of histone modification in the GABAergic differentiation and neurotransmission during early brain development.
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Affiliation(s)
- Juanmei Gao
- College of Life Sciences, Zhejiang University, Hangzhou, China
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Yuhao Luo
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Yufang Lu
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Xiaohua Wu
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Peiyao Chen
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Xinyu Zhang
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Lu Han
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Mengsheng Qiu
- College of Life Sciences, Zhejiang University, Hangzhou, China
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Mengsheng Qiu,
| | - Wanhua Shen
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
- Wanhua Shen,
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24
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Alexander DC, Corman T, Mendoza M, Glass A, Belity T, Wu R, Campbell RR, Han J, Keiser AA, Winkler J, Wood MA, Kim T, Garcia BA, Cohen H, Mews P, Egervari G, Berger SL. Targeting acetyl-CoA metabolism attenuates the formation of fear memories through reduced activity-dependent histone acetylation. Proc Natl Acad Sci U S A 2022; 119:e2114758119. [PMID: 35921439 PMCID: PMC9371679 DOI: 10.1073/pnas.2114758119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Histone acetylation is a key component in the consolidation of long-term fear memories. Histone acetylation is fueled by acetyl-coenzyme A (acetyl-CoA), and recently, nuclear-localized metabolic enzymes that produce this metabolite have emerged as direct and local regulators of chromatin. In particular, acetyl-CoA synthetase 2 (ACSS2) mediates histone acetylation in the mouse hippocampus. However, whether ACSS2 regulates long-term fear memory remains to be determined. Here, we show that Acss2 knockout is well tolerated in mice, yet the Acss2-null mouse exhibits reduced acquisition of long-term fear memory. Loss of Acss2 leads to reductions in both histone acetylation and expression of critical learning and memory-related genes in the dorsal hippocampus, specifically following fear conditioning. Furthermore, systemic administration of blood-brain barrier-permeable Acss2 inhibitors during the consolidation window reduces fear-memory formation in mice and rats and reduces anxiety in a predator-scent stress paradigm. Our findings suggest that nuclear acetyl-CoA metabolism via ACSS2 plays a critical, previously unappreciated, role in the formation of fear memories.
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Affiliation(s)
- Desi C. Alexander
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- bDepartment of Genetics, University of Pennsylvania, Philadelphia, PA 19104
| | - Tanya Corman
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
| | - Mariel Mendoza
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- cDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Andrew Glass
- dDepartment of Chemistry, University of Pennsylvania, Philadelphia, PA 19104
| | - Tal Belity
- eDepartment of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Ranran Wu
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- cDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Rianne R. Campbell
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | - Joseph Han
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | - Ashley A. Keiser
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | - Jeffrey Winkler
- dDepartment of Chemistry, University of Pennsylvania, Philadelphia, PA 19104
| | - Marcelo A. Wood
- fDepartment of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, CA 92697
| | | | - Benjamin A. Garcia
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- cDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Hagit Cohen
- eDepartment of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- hBeer-Sheva Mental Health Center, Ministry of Health, Anxiety and Stress Research Unit, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Philipp Mews
- iFishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
- 2To whom correspondence may be addressed. , , or
| | - Gabor Egervari
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- jDepartment of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
- 2To whom correspondence may be addressed. , , or
| | - Shelley L. Berger
- aEpigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104
- bDepartment of Genetics, University of Pennsylvania, Philadelphia, PA 19104
- jDepartment of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
- kDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104
- 2To whom correspondence may be addressed. , , or
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25
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Bai N, Li N, Cheng R, Guan Y, Zhao X, Song Z, Xu H, Yi F, Jiang B, Li X, Wu X, Jiang C, Zhou T, Guo Q, Guo W, Feng Y, Wang Z, Ma M, Yu Y, Wang Z, Zhang S, Wang C, Zhao W, Liu S, Song X, Liu H, Cao L. Inhibition of SIRT2 promotes APP acetylation and ameliorates cognitive impairment in APP/PS1 transgenic mice. Cell Rep 2022; 40:111062. [PMID: 35830807 DOI: 10.1016/j.celrep.2022.111062] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 04/18/2022] [Accepted: 06/15/2022] [Indexed: 12/23/2022] Open
Abstract
Aging is a primary risk factor for neurodegenerative diseases, such as Alzheimer's disease (AD). SIRT2, an NAD+(nicotinamide adenine dinucleotide)-dependent deacetylase, accumulates in the aging brain. Here, we report that, in the amyloid precursor protein (APP)/PS1 transgenic mouse model of AD, genetic deletion of SIRT2 or pharmacological inhibition of SIRT2 ameliorates cognitive impairment. We find that suppression of SIRT2 enhances acetylation of APP, which promotes non-amyloidogenic processing of APP at the cell surface, leading to increased soluble APP-α (sAPPα). We discover that lysines 132 and 134 of the major pathogenic protein β-amyloid (Aβ) precursor are acetylated and that these residues are deacetylated by SIRT2. Strikingly, exogenous expression of wild-type or an acetylation-mimic APP mutant protects cultured primary neurons from Aβ42 challenge. Our study identifies SIRT2-mediated deacetylation of APP on K132 and K134 as a regulated post-translational modification (PTM) and suggests inhibition of SIRT2 as a potential therapeutic strategy for AD.
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Affiliation(s)
- Ning Bai
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China.
| | - Na Li
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Rong Cheng
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Yi Guan
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Xiong Zhao
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhijie Song
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China
| | - Hongde Xu
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Fei Yi
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Bo Jiang
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Xiaoman Li
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Xuan Wu
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Cui Jiang
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, China
| | - Tingting Zhou
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Qiqiang Guo
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Wendong Guo
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Yanling Feng
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhuo Wang
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Mengtao Ma
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Yang Yu
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhanyou Wang
- Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Shengping Zhang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Chuangui Wang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Weidong Zhao
- Department of Developmental Cell Biology, School of Life Sciences, China Medical University, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Shihui Liu
- Aging Institute, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xiaoyu Song
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Hua Liu
- Innovation Center of Aging-Related Disease Diagnosis and Treatment and Prevention, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| | - Liu Cao
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China; Innovation Center of Aging-Related Disease Diagnosis and Treatment and Prevention, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
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26
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Yang L, Hao JR, Gao Y, Yang X, Shen XR, Wang HY, Sun N, Gao C. HDAC3 of dorsal hippocampus induces postoperative cognitive dysfunction in aged mice. Behav Brain Res 2022; 433:114002. [PMID: 35810999 DOI: 10.1016/j.bbr.2022.114002] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/16/2022] [Accepted: 07/05/2022] [Indexed: 12/18/2022]
Abstract
Postoperative cognitive dysfunction (POCD) affects a substantial number of aged individuals. Although advanced age has been regarded as the only independent risk factor for cognitive decline following anesthesia and surgery, the exact cellular and molecular mechanisms remain poorly understood. Histone deacetylase 3 (HDAC3), an epigenetic regulator of memory plays an important role in age-dependent disease. In this study, we investigated the role of HDAC3 in POCD using a laparotomy mouse model. The results showed that the level of HDAC3 in the dorsal hippocampus (DH) was elevated in aged mice compared with young mice. The surgery impaired the spatial-temporal memory in aged mice, as indicated in the object location memory (OLM) and temporal order memory (TOM) tests. Model mice also exhibited increased expression of HDAC3 protein and decreased levels of dendritic spine density and synaptic plasticity-related proteins in the DH. Selectively blocking HDAC3 in the DH of aged mice reversed spatial-temporal memory impairment induced by surgery and restored dendritic spine density and synaptic plasticity-related proteins in the DH. Overexpression of HDAC3 by adeno-associated virus in the DH of young mice mimicked the behavioral deficits induced by anesthesia and surgery. Our results indicated that HDAC3 negatively regulates spatial-temporal memory in aged mice after anesthesia and surgery. Targeting HDAC3 might represent a potential therapy to avoid POCD.
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Affiliation(s)
- Li Yang
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China; The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.
| | - Jing-Ru Hao
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China.
| | - Yin Gao
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China; The Affiliated Nanjing Drum Tower Hospital of Xuzhou Medical University, Nanjing, Jiangsu 210008, China.
| | - Xiu Yang
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China.
| | - Xiao-Ran Shen
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China.
| | - Hu-Yi Wang
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China.
| | - Nan Sun
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China.
| | - Can Gao
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China.
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27
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Yang J, Grafton F, Ranjbarvaziri S, Budan A, Farshidfar F, Cho M, Xu E, Ho J, Maddah M, Loewke KE, Medina J, Sperandio D, Patel S, Hoey T, Mandegar MA. Phenotypic screening with deep learning identifies HDAC6 inhibitors as cardioprotective in a BAG3 mouse model of dilated cardiomyopathy. Sci Transl Med 2022; 14:eabl5654. [PMID: 35857625 DOI: 10.1126/scitranslmed.abl5654] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Dilated cardiomyopathy (DCM) is characterized by reduced cardiac output, as well as thinning and enlargement of left ventricular chambers. These characteristics eventually lead to heart failure. Current standards of care do not target the underlying molecular mechanisms associated with genetic forms of heart failure, driving a need to develop novel therapeutics for DCM. To identify candidate therapeutics, we developed an in vitro DCM model using induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) deficient in B-cell lymphoma 2 (BCL2)-associated athanogene 3 (BAG3). With these BAG3-deficient iPSC-CMs, we identified cardioprotective drugs using a phenotypic screen and deep learning. From a library of 5500 bioactive compounds and siRNA validation, we found that inhibiting histone deacetylase 6 (HDAC6) was cardioprotective at the sarcomere level. We translated this finding to a BAG3 cardiomyocyte-knockout (BAG3cKO) mouse model of DCM, showing that inhibiting HDAC6 with two isoform-selective inhibitors (tubastatin A and a novel inhibitor TYA-018) protected heart function. In BAG3cKO and BAG3E455K mice, HDAC6 inhibitors improved left ventricular ejection fraction and reduced left ventricular diameter at diastole and systole. In BAG3cKO mice, TYA-018 protected against sarcomere damage and reduced Nppb expression. Based on integrated transcriptomics and proteomics and mitochondrial function analysis, TYA-018 also enhanced energetics in these mice by increasing expression of targets associated with fatty acid metabolism, protein metabolism, and oxidative phosphorylation. Our results demonstrate the power of combining iPSC-CMs with phenotypic screening and deep learning to accelerate drug discovery, and they support developing novel therapies that address underlying mechanisms associated with heart disease.
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Affiliation(s)
- Jin Yang
- Tenaya Therapeutics, South San Francisco, CA 94080, USA
| | | | | | - Ana Budan
- Tenaya Therapeutics, South San Francisco, CA 94080, USA
| | | | - Marie Cho
- Tenaya Therapeutics, South San Francisco, CA 94080, USA
| | - Emma Xu
- Tenaya Therapeutics, South San Francisco, CA 94080, USA
| | - Jaclyn Ho
- Tenaya Therapeutics, South San Francisco, CA 94080, USA
| | | | | | | | | | - Snahel Patel
- Tenaya Therapeutics, South San Francisco, CA 94080, USA
| | - Tim Hoey
- Tenaya Therapeutics, South San Francisco, CA 94080, USA
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28
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Sultan FA, Sawaya BE. Gadd45 in Neuronal Development, Function, and Injury. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1360:117-148. [PMID: 35505167 DOI: 10.1007/978-3-030-94804-7_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The growth arrest and DNA damage-inducible (Gadd) 45 proteins have been associated with numerous cellular mechanisms including cell cycle control, DNA damage sensation and repair, genotoxic stress, neoplasia, and molecular epigenetics. The genes were originally identified in in vitro screens of irradiation- and interleukin-induced transcription and have since been implicated in a host of normal and aberrant central nervous system processes. These include early and postnatal development, injury, cancer, memory, aging, and neurodegenerative and psychiatric disease states. The proteins act through a variety of molecular signaling cascades including the MAPK cascade, cell cycle control mechanisms, histone regulation, and epigenetic DNA demethylation. In this review, we provide a comprehensive discussion of the literature implicating each of the three members of the Gadd45 family in these processes.
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Affiliation(s)
- Faraz A Sultan
- Department of Psychiatry, Rush University, Chicago, IL, USA.
| | - Bassel E Sawaya
- Molecular Studies of Neurodegenerative Diseases Lab, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA.,FELS Cancer Institute for Personalized Medicine Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA.,Departments of Neurology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA.,Cancer and Cell Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA.,Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
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29
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Muñoz-Moreno JA, Carrillo-Molina S, Martínez-Zalacaín I, Miranda C, Manzardo C, Coll P, Meulbroek M, Hanke T, Garolera M, Miró JM, Brander C, Clotet B, Soriano-Mas C, Moltó J, Mothe B. Preserved central nervous system functioning after use of romidepsin as a latency-reversing agent in an HIV cure strategy. AIDS 2022; 36:363-372. [PMID: 34750296 DOI: 10.1097/qad.0000000000003121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To assess the central nervous system (CNS) impact of a kick&kill HIV cure strategy using therapeutic vaccine MVA.HIVconsv and the histone deacetylase inhibitor (HDACi) romidepsin (RMD) as latency-reversing agent. DESIGN Neurological observational substudy of the BCN02 trial (NCT02616874), a proof-of-concept, open-label, single-arm, phase I clinical trial testing the safety and immunogenicity of the MVA.HIVconsv vaccine and RMD in early-treated HIV-1-infected individuals. A monitored antiretroviral pause (MAP) was performed, with cART resumption after 2 pVL more than 2000 copies/ml. Reinitiated participants were followed for 24 weeks. METHODS Substudy participation was offered to all BCN02 participants (N = 15). Evaluations covered cognitive, functional, and brain imaging outcomes, performed before RMD administration (pre-RMD), after three RMD infusions (post-RMD), and at the end of the study (EoS). A group of early-treated HIV-1-infected individuals with matched clinical characteristics was additionally recruited (n = 10). Primary endpoint was change in a global cognitive score (NPZ-6). RESULTS Eleven participants from BCN02 trial were enrolled. No significant changes were observed in cognitive, functional, or brain imaging outcomes from pre-RMD to post-RMD. No relevant alterations were detected from pre-RMD to EoS either. Scores at EoS were similar in participants off cART for 32 weeks (n = 3) and those who resumed therapy for 24 weeks (n = 7). Controls showed comparable punctuations in NPZ-6 across all timepoints. CONCLUSION No detrimental effects on cognitive status, functional outcomes, or brain imaging parameters were observed after using the HDACi RMD as latency-reversing agent with the MVA.HIVconsv vaccine in early-treated HIV-1-infected individuals. CNS safety was also confirmed after completion of the MAP.
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Affiliation(s)
- Jose A Muñoz-Moreno
- Fundació Lluita contra la SIDA (FLS), Hospital Universitari Germans Trias i Pujol, Badalona
- Faculty of Psychology and Education Sciences, Universitat Oberta de Catalunya (UOC), Barcelona
| | - Sara Carrillo-Molina
- Fundació Lluita contra la SIDA (FLS), Hospital Universitari Germans Trias i Pujol, Badalona
| | - Ignacio Martínez-Zalacaín
- Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat
- Department of Clinical Sciences, Universitat de Barcelona (UB)
| | - Cristina Miranda
- Fundació Lluita contra la SIDA (FLS), Hospital Universitari Germans Trias i Pujol, Badalona
| | - Christian Manzardo
- Infectious Diseases Department, Hospital Clínic-IDIBAPS
- University of Barcelona (UB)
| | - Pep Coll
- Fundació Lluita contra la SIDA (FLS), Hospital Universitari Germans Trias i Pujol, Badalona
- Projecte dels NOMS - Hispanosida, BCN Checkpoint, Barcelona
- IrsiCaixa AIDS Research Institute - HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain
| | | | - Tomáš Hanke
- The Jenner Institute, University of Oxford, Oxford, UK
- Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Maite Garolera
- Neuropsychology Unit, Consorci Sanitari Hospital de Terrassa (CSHT), Terrassa
- Grup de Recerca Consolidat en Neuropsicologia, Universitat de Barcelona (UB), Barcelona
| | - Josep M Miró
- Infectious Diseases Department, Hospital Clínic-IDIBAPS
- University of Barcelona (UB)
| | - Christian Brander
- IrsiCaixa AIDS Research Institute - HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain
- Faculty of Medicine, Universitat de Vic - Universitat Central de Catalunya (UVic-UCC), Vic
- ICREA, Barcelona
| | - Bonaventura Clotet
- Fundació Lluita contra la SIDA (FLS), Hospital Universitari Germans Trias i Pujol, Badalona
- IrsiCaixa AIDS Research Institute - HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain
- Faculty of Medicine, Universitat de Vic - Universitat Central de Catalunya (UVic-UCC), Vic
- Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona
| | - Carles Soriano-Mas
- Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat
- CIBER Salud Mental (CIBERSAM), Carlos III Health Institute, Barcelona
- Department of Psychobiology and Methodology in Health Sciences, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Catalonia, Spain
| | - José Moltó
- Fundació Lluita contra la SIDA (FLS), Hospital Universitari Germans Trias i Pujol, Badalona
- Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona
| | - Beatriz Mothe
- Fundació Lluita contra la SIDA (FLS), Hospital Universitari Germans Trias i Pujol, Badalona
- IrsiCaixa AIDS Research Institute - HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain
- Faculty of Medicine, Universitat de Vic - Universitat Central de Catalunya (UVic-UCC), Vic
- Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona
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Belayet JB, Beamish S, Rahaman M, Alanani S, Virdi RS, Frick DN, Rahman AFMT, Ulicki JS, Biswas S, Arnold LA, Roni MSR, Cheng EY, Steeber DA, Frick KM, Hossain MM. Development of a Novel, Small-Molecule Brain-Penetrant Histone Deacetylase Inhibitor That Enhances Spatial Memory Formation in Mice. J Med Chem 2022; 65:3388-3403. [PMID: 35133171 DOI: 10.1021/acs.jmedchem.1c01928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Histone acetylation is a prominent epigenetic modification linked to the memory loss symptoms associated with neurodegenerative disease. The use of existing histone deacetylase inhibitor (HDACi) drugs for treatment is precluded by their weak blood-brain barrier (BBB) permeability and undesirable toxicity. Here, we address these shortcomings by developing a new class of disulfide-based compounds, inspired by the scaffold of the FDA-approved HDACi romidepsin (FK288). Our findings indicate that our novel compound MJM-1 increases the overall level of histone 3 (H3) acetylation in a prostate cancer cell line. In mice, MJM-1 injected intraperitoneally (i.p.) crossed the BBB and could be detected in the hippocampus, a brain region that mediates memory. Consistent with this finding, we found that the post-training i.p. administration of MJM-1 enhanced hippocampus-dependent spatial memory consolidation in male mice. Therefore, MJM-1 represents a potential lead for further optimization as a therapeutic strategy for ameliorating cognitive deficits in aging and neurodegenerative diseases.
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Affiliation(s)
- Jawad B Belayet
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Sarah Beamish
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Mizzanoor Rahaman
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Samer Alanani
- Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Rajdeep S Virdi
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - David N Frick
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - A F M Towheedur Rahman
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Joseph S Ulicki
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Sreya Biswas
- Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Leggy A Arnold
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - M S Rashid Roni
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Eric Y Cheng
- College of Pharmacy, University of North Texas Health Science Center at Fort Worth, Fort Worth, Texas 76107, United States
| | - Douglas A Steeber
- Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Karyn M Frick
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - M Mahmun Hossain
- Department of Chemistry and Biochemistry and Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
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Galow AM, Peleg S. How to Slow down the Ticking Clock: Age-Associated Epigenetic Alterations and Related Interventions to Extend Life Span. Cells 2022; 11:468. [PMID: 35159278 PMCID: PMC8915189 DOI: 10.3390/cells11030468] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 01/26/2022] [Indexed: 02/04/2023] Open
Abstract
Epigenetic alterations pose one major hallmark of organismal aging. Here, we provide an overview on recent findings describing the epigenetic changes that arise during aging and in related maladies such as neurodegeneration and cancer. Specifically, we focus on alterations of histone modifications and DNA methylation and illustrate the link with metabolic pathways. Age-related epigenetic, transcriptional and metabolic deregulations are highly interconnected, which renders dissociating cause and effect complicated. However, growing amounts of evidence support the notion that aging is not only accompanied by epigenetic alterations, but also at least in part induced by those. DNA methylation clocks emerged as a tool to objectively determine biological aging and turned out as a valuable source in search of factors positively and negatively impacting human life span. Moreover, specific epigenetic signatures can be used as biomarkers for age-associated disorders or even as targets for therapeutic approaches, as will be covered in this review. Finally, we summarize recent potential intervention strategies that target epigenetic mechanisms to extend healthy life span and provide an outlook on future developments in the field of longevity research.
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Affiliation(s)
- Anne-Marie Galow
- Institute for Genome Biology, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
| | - Shahaf Peleg
- Research Group Epigenetics, Metabolism and Longevity, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
- Institute of Neuroregeneration and Neurorehabilitation of Qingdao University, Qingdao 266071, China
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Donati Zeppa S, Ferrini F, Agostini D, Amatori S, Barbieri E, Piccoli G, Sestili P, Stocchi V. Nutraceuticals and Physical Activity as Antidepressants: The Central Role of the Gut Microbiota. Antioxidants (Basel) 2022; 11:antiox11020236. [PMID: 35204119 PMCID: PMC8868311 DOI: 10.3390/antiox11020236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 12/15/2022] Open
Abstract
Major depressive disorder (MDD) is a common mental illness. Evidence suggests that the gut microbiota play an essential role in regulating brain functions and the pathogenesis of neuropsychiatric diseases, including MDD. There are numerous mechanisms through which the gut microbiota and brain can exchange information in a continuous, bidirectional communication. Current research emphasizes the interexchange of signals influenced by the gut microbiota that are detected and transduced in information from the gut to the nervous system involving neural, endocrine, and inflammatory mechanisms, suggesting a relationship between oxidative stress and the pathophysiology of MDD via the hyperactivation of inflammatory responses. Potential sources of inflammation in the plasma and hippocampus of depressed individuals could stem from increases in intestinal permeability. Some nutraceuticals, such as specific probiotics, namely psychobiotics, polyphenols, carotenoids, butyrate, and prebiotics, have been demonstrated to exert an antidepressant activity, but most of them need to be metabolized and activated by gut microorganisms. By inducing changes in the gut microbiota composition, physical exercise might also exert a role in alleviating depression-like symptoms. The mutual relationships among nutraceuticals, exercise, and depression will be discussed, and the potential role of the gut microbiota as a therapeutic target to treat depression will be explored.
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Affiliation(s)
- Sabrina Donati Zeppa
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (S.D.Z.); (F.F.); (D.A.); (E.B.); (G.P.); (P.S.)
| | - Fabio Ferrini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (S.D.Z.); (F.F.); (D.A.); (E.B.); (G.P.); (P.S.)
| | - Deborah Agostini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (S.D.Z.); (F.F.); (D.A.); (E.B.); (G.P.); (P.S.)
| | - Stefano Amatori
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (S.D.Z.); (F.F.); (D.A.); (E.B.); (G.P.); (P.S.)
- Correspondence:
| | - Elena Barbieri
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (S.D.Z.); (F.F.); (D.A.); (E.B.); (G.P.); (P.S.)
| | - Giovanni Piccoli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (S.D.Z.); (F.F.); (D.A.); (E.B.); (G.P.); (P.S.)
| | - Piero Sestili
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (S.D.Z.); (F.F.); (D.A.); (E.B.); (G.P.); (P.S.)
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Simultaneous administration of bromodomain and histone deacetylase I inhibitors alleviates cognition deficit in Alzheimer's model of rats. Brain Res Bull 2021; 179:49-56. [PMID: 34915044 DOI: 10.1016/j.brainresbull.2021.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/02/2021] [Accepted: 12/07/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Histone deacetylases (HDACs) target various genes responsible for cognitive functions. However, chromatin readers, particularly bromodomain-containing protein 4 (BRD4), are capable to change the final products of genes. The objective of this study was to evaluate the simultaneous effects of inhibition of HDACs and BRD4 on spatial and aversive memories impaired by amyloid β (Aβ) in a rat model of Alzheimer's disease (AD) considering CREB and TNF-α signaling. METHODS Forty male Wistar rats aged 3 months were randomly divided into five groups: saline +DMSO, Aβ+saline+DMSO, Aβ+JQ1, Aβ+MS-275, Aβ+JQ1+MS-275, and received the related treatments. MS-275, is the second generation of HDACs inhibitor, and JQ1 is a potent inhibitor of the BET family of bromodomain proteins in mammals. After the treatments, cognitive function was assessed by Morris water maze (MWM) and passive avoidance learning (PAL). The hippocampal level of mRNA for CREB and TNF-α, and also phosphorylated CREB were measured using real-time PCR and western blotting respectively. RESULTS Administration of JQ1 and MS-275, either separately or simultaneously, improved acquisition and retrieval of spatial and aversive memories as it was evident by decreased escape latency and increased time spent in the target quadrant (TTS) in Morris water maze (MWM), together with increase in step-through latency, but reduced time spent in the dark zone time in passive avoidance learning (PAL) compared with Aβ+saline+DMSO. Furthermore, there was a significant rise in the hippocampal level of CREB mRNA and phosphorylated CREB, but a reduction in TNF-α expression in comparison with Aβ + Saline. CONCLUSION Simultaneous administration of JQ1 and MS-275 improves acquisition and retrieval of both spatial and aversive memories partly via CREB and TNF-α signaling with no superiority to monotherapy.
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Matrisciano F, Pinna G. PPAR-α Hypermethylation in the Hippocampus of Mice Exposed to Social Isolation Stress Is Associated with Enhanced Neuroinflammation and Aggressive Behavior. Int J Mol Sci 2021; 22:ijms221910678. [PMID: 34639019 PMCID: PMC8509148 DOI: 10.3390/ijms221910678] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/24/2021] [Accepted: 08/28/2021] [Indexed: 12/18/2022] Open
Abstract
Social behavioral changes, including social isolation or loneliness, increase the risk for stress-related disorders, such as major depressive disorder, posttraumatic stress disorder (PTSD), and suicide, which share a strong neuroinflammatory etiopathogenetic component. The peroxisome-proliferator activated receptor (PPAR)-α, a newly discovered target involved in emotional behavior regulation, is a ligand-activated nuclear receptor and a transcription factor that, following stimulation by endogenous or synthetic ligands, may induce neuroprotective effects by modulating neuroinflammation, and improve anxiety and depression-like behaviors by enhancing neurosteroid biosynthesis. How stress affects epigenetic mechanisms with downstream effects on inflammation and emotional behavior remains poorly understood. We studied the effects of 4-week social isolation, using a mouse model of PTSD/suicide-like behavior, on hippocampal PPAR-α epigenetic modification. Decreased PPAR-α expression in the hippocampus of socially isolated mice was associated with increased levels of methylated cytosines of PPAR-α gene CpG-rich fragments and deficient neurosteroid biosynthesis. This effect was associated with increased histone deacetylases (HDAC)1, methyl-cytosine binding protein (MeCP)2 and decreased ten-eleven translocator (TET)2 expression, which favor hypermethylation. These alterations were associated with increased TLR-4 and pro-inflammatory markers (e.g., TNF-α,), mediated by NF-κB signaling in the hippocampus of aggressive mice. This study contributes the first evidence of stress-induced brain PPAR-α epigenetic regulation. Social isolation stress may constitute a risk factor for inflammatory-based psychiatric disorders associated with neurosteroid deficits, and targeting epigenetic marks linked to PPAR-α downregulation may offer a valid therapeutic approach.
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Herrera EA, González-Candia A. Gestational Hypoxia and Blood-Brain Barrier Permeability: Early Origins of Cerebrovascular Dysfunction Induced by Epigenetic Mechanisms. Front Physiol 2021; 12:717550. [PMID: 34489733 PMCID: PMC8418233 DOI: 10.3389/fphys.2021.717550] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/19/2021] [Indexed: 01/25/2023] Open
Abstract
Fetal chronic hypoxia leads to intrauterine growth restriction (IUGR), which is likely to reduce oxygen delivery to the brain and induce long-term neurological impairments. These indicate a modulatory role for oxygen in cerebrovascular development. During intrauterine hypoxia, the fetal circulation suffers marked adaptations in the fetal cardiac output to maintain oxygen and nutrient delivery to vital organs, known as the "brain-sparing phenotype." This is a well-characterized response; however, little is known about the postnatal course and outcomes of this fetal cerebrovascular adaptation. In addition, several neurodevelopmental disorders have their origins during gestation. Still, few studies have focused on how intrauterine fetal hypoxia modulates the normal brain development of the blood-brain barrier (BBB) in the IUGR neonate. The BBB is a cellular structure formed by the neurovascular unit (NVU) and is organized by a monolayer of endothelial and mural cells. The BBB regulates the entry of plasma cells and molecules from the systemic circulation to the brain. A highly selective permeability system achieves this through integral membrane proteins in brain endothelial cells. BBB breakdown and dysfunction in cerebrovascular diseases lead to leakage of blood components into the brain parenchyma, contributing to neurological deficits. The fetal brain circulation is particularly susceptible in IUGR and is proposed to be one of the main pathological processes deriving BBB disruption. In the last decade, several epigenetic mechanisms activated by IU hypoxia have been proposed to regulate the postnatal BBB permeability. However, few mechanistic studies about this topic are available, and little evidence shows controversy. Therefore, in this mini-review, we analyze the BBB permeability-associated epigenetic mechanisms in the brain exposed to chronic intrauterine hypoxia.
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Affiliation(s)
- Emilio A Herrera
- Laboratory of Vascular Function and Reactivity, Pathophysiology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
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36
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Yang J, He Z, Chen C, Li S, Qian J, Zhao J, Fang R. Toxoplasma gondii Infection Inhibits Histone Crotonylation to Regulate Immune Response of Porcine Alveolar Macrophages. Front Immunol 2021; 12:696061. [PMID: 34322124 PMCID: PMC8312545 DOI: 10.3389/fimmu.2021.696061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/18/2021] [Indexed: 01/01/2023] Open
Abstract
Toxoplasma gondii (T. gondii) is an obligate intracellular parasite that can infect almost all warm-blooded animals, causing serious public health problems. Lysine crotonylation (Kcr) is a newly discovered posttranslational modification (PTM), which is first identified on histones and has been proved relevant to procreation regulation, transcription activation, and cell signaling pathway. However, the biological functions of histone crotonylation have not yet been reported in macrophages infected with T. gondii. As a result, a total of 1,286 Kcr sites distributed in 414 proteins were identified and quantified, demonstrating the existence of crotonylation in porcine alveolar macrophages. According to our results, identified histones were overall downregulated. HDAC2, a histone decrotonylase, was found to be significantly increased, which might be the executor of histone Kcr after parasite infection. In addition, T. gondii infection inhibited the crotonylation of H2B on K12, contributing on the suppression of epigenetic regulation and NF-κB activation. Nevertheless, the reduction of histone crotonylation induced by parasite infection could promote macrophage proliferation via activating PI3K/Akt signaling pathway. The present findings point to a comprehensive understanding of the biological functions of histone crotonylation in porcine alveolar macrophages, thereby providing a certain research basis for the mechanism research on the immune response of host cells against T. gondii infection.
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Affiliation(s)
- Jing Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zhengming He
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Chengjie Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Senyang Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Jiahui Qian
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Junlong Zhao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Rui Fang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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Involvement of 5-HT1A receptor-mediated histone acetylation in the regulation of depression. Neuroreport 2021; 32:1049-1057. [PMID: 34232131 DOI: 10.1097/wnr.0000000000001693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Depression is one of the most common and disabling mental disorders. There is growing evidence that 5-HT1A receptor is involved in the regulation of depressive-related behaviors. However, the exact mechanism underlying the role of 5-HT1A receptor in depression remains unknown. Histone acetylation is associated with the pathophysiology and treatment of depression. In the current study, we investigated whether the epigenetic histone deacetylase (HDAC)-induced histone acetylation mediates the regulation of 5-HT1A receptor in depressive behaviors. We showed that 5-HT1A receptor selective agonist (±)-8-hydroxy-2-(dipropylamino) tetralin hydrobromide led to significant increase in acetylation of H3 at lysine 9 (Ac-H3K9) and H4 at lysine 5 (Ac-H4K5) and lysine 12 (Ac-H4K12) with obviously decreasing histone deacetylase 1 (HDAC1), histone deacetylase 2 (HDAC2), histone deacetylase 4 (HDAC4) and histone deacetylase 5 (HDAC5) expression in hippocampus of mice. Conversely, 5-HT1A receptor selective antagonist NAN-190 decreased the level of acetylation of H3 and H4 with increasing the expression of HDAC1, HDAC2, HDAC4 and HDAC5 in the hippocampus. Furthermore, we found that HDAC inhibitors, trichostatin A or suberoylanilide hydroxamic acid infusion to hippocampus prevented the depressive behaviors induced by NAN-190, as well as histone H3 and H4 acetylation in mice. Our results suggested that epigenetic histone acetylation coupled with 5-HT1A receptor may play vital role in the pathophysiology and treatment of depressive disorders.
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Sodium phenylbutyrate reduces repetitive self-grooming behavior and rescues social and cognitive deficits in mouse models of autism. Psychopharmacology (Berl) 2021; 238:1833-1845. [PMID: 33723660 DOI: 10.1007/s00213-021-05812-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 03/01/2021] [Indexed: 12/11/2022]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopment disorder characterized by deficits in social interaction and restrictive, repetitive, and stereotypical patterns of behavior. However, there is no pharmacological drug that is currently used to target these core ASD symptoms. Sodium phenylbutyrate (NaPB) is a well-known long-term treatment of urea cycle disorders in children. In this study, we assessed the therapeutic effects of NaPB, which is a chemical chaperone as well as histone deacetylase inhibitor on a BTBR T + Itpr3tf/J (BTBR) mice model of ASD. We found that acute and chronic treatment of NaPB remarkably improved, not only core ASD symptoms, including repetitive behaviors and sociability deficit, but also cognitive impairment in the BTBR mice. NaPB substantially induced histone acetylation in the brain of the BTBR mice. Intriguingly, the therapeutic effects of NaPB on autistic-like behaviors, such as repetitive behaviors, impaired sociability, and cognitive deficit also showed in the valproic acid (VPA)-induced mouse model of autism. In addition, pentylenetetrazole (PTZ)-induced seizure was significantly attenuated by NaPB treatment in C57BL/6J and BTBR mice. These findings suggest that NaPB may provide a novel therapeutic approach for the treatment of patients with ASD.
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Van Gils J, Magdinier F, Fergelot P, Lacombe D. Rubinstein-Taybi Syndrome: A Model of Epigenetic Disorder. Genes (Basel) 2021; 12:968. [PMID: 34202860 PMCID: PMC8303114 DOI: 10.3390/genes12070968] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 05/31/2021] [Accepted: 06/16/2021] [Indexed: 12/24/2022] Open
Abstract
The Rubinstein-Taybi syndrome (RSTS) is a rare congenital developmental disorder characterized by a typical facial dysmorphism, distal limb abnormalities, intellectual disability, and many additional phenotypical features. It occurs at between 1/100,000 and 1/125,000 births. Two genes are currently known to cause RSTS, CREBBP and EP300, mutated in around 55% and 8% of clinically diagnosed cases, respectively. To date, 500 pathogenic variants have been reported for the CREBBP gene and 118 for EP300. These two genes encode paralogs acting as lysine acetyltransferase involved in transcriptional regulation and chromatin remodeling with a key role in neuronal plasticity and cognition. Because of the clinical heterogeneity of this syndrome ranging from the typical clinical diagnosis to features overlapping with other Mendelian disorders of the epigenetic machinery, phenotype/genotype correlations remain difficult to establish. In this context, the deciphering of the patho-physiological process underlying these diseases and the definition of a specific episignature will likely improve the diagnostic efficiency but also open novel therapeutic perspectives. This review summarizes the current clinical and molecular knowledge and highlights the epigenetic regulation of RSTS as a model of chromatinopathy.
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Affiliation(s)
- Julien Van Gils
- Reference Center AD SOOR, AnDDI-RARE, INSERM U 1211, Medical Genetics Department, Bordeaux University, Centre Hospitalier Universitaire de Bordeaux, 33076 Bordeaux, France; (P.F.); (D.L.)
| | - Frederique Magdinier
- Marseille Medical Genetics, INSERM U 1251, MMG, Aix Marseille University, 13385 Marseille, France;
| | - Patricia Fergelot
- Reference Center AD SOOR, AnDDI-RARE, INSERM U 1211, Medical Genetics Department, Bordeaux University, Centre Hospitalier Universitaire de Bordeaux, 33076 Bordeaux, France; (P.F.); (D.L.)
| | - Didier Lacombe
- Reference Center AD SOOR, AnDDI-RARE, INSERM U 1211, Medical Genetics Department, Bordeaux University, Centre Hospitalier Universitaire de Bordeaux, 33076 Bordeaux, France; (P.F.); (D.L.)
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Ihezie SA, Mathew IE, McBride DW, Dienel A, Blackburn SL, Thankamani Pandit PK. Epigenetics in blood-brain barrier disruption. Fluids Barriers CNS 2021; 18:17. [PMID: 33823899 PMCID: PMC8025355 DOI: 10.1186/s12987-021-00250-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/17/2021] [Indexed: 01/08/2023] Open
Abstract
The vessels of the central nervous system (CNS) have unique barrier properties. The endothelial cells (ECs) which comprise the CNS vessels contribute to the barrier via strong tight junctions, specific transporters, and limited endocytosis which combine to protect the brain from toxins and maintains brain homeostasis. Blood-brain barrier (BBB) leakage is a serious secondary injury in various CNS disorders like stroke, brain tumors, and neurodegenerative disorders. Currently, there are no drugs or therapeutics available to treat specifically BBB damage after a brain injury. Growing knowledge in the field of epigenetics can enhance the understanding of gene level of the BBB and has great potential for the development of novel therapeutic strategies or targets to repair a disrupted BBB. In this brief review, we summarize the epigenetic mechanisms or regulators that have a protective or disruptive role for components of BBB, along with the promising approaches to regain the integrity of BBB.
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Affiliation(s)
- Stephanie A Ihezie
- The Vivian L. Smith Department of Neurosurgery, University of Texas Health Science Center, 6431 Fannin St. MSB 7.147, Houston, TX, 77030, USA
| | - Iny Elizebeth Mathew
- The Vivian L. Smith Department of Neurosurgery, University of Texas Health Science Center, 6431 Fannin St. MSB 7.147, Houston, TX, 77030, USA
| | - Devin W McBride
- The Vivian L. Smith Department of Neurosurgery, University of Texas Health Science Center, 6431 Fannin St. MSB 7.147, Houston, TX, 77030, USA
| | - Ari Dienel
- The Vivian L. Smith Department of Neurosurgery, University of Texas Health Science Center, 6431 Fannin St. MSB 7.147, Houston, TX, 77030, USA
| | - Spiros L Blackburn
- The Vivian L. Smith Department of Neurosurgery, University of Texas Health Science Center, 6431 Fannin St. MSB 7.147, Houston, TX, 77030, USA
| | - Peeyush Kumar Thankamani Pandit
- The Vivian L. Smith Department of Neurosurgery, University of Texas Health Science Center, 6431 Fannin St. MSB 7.147, Houston, TX, 77030, USA.
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Chen X, Zhang Y, Wang Q, Qin Y, Yang X, Xing Z, Shen Y, Wu H, Qi Y. The function of SUMOylation and its crucial roles in the development of neurological diseases. FASEB J 2021; 35:e21510. [PMID: 33710677 DOI: 10.1096/fj.202002702r] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/02/2021] [Accepted: 02/22/2021] [Indexed: 11/11/2022]
Abstract
Neurological diseases are relatively complex diseases of a large system; however, the detailed mechanism of their pathogenesis has not been completely elucidated, and effective treatment methods are still lacking for some of the diseases. The SUMO (small ubiquitin-like modifier) modification is a dynamic and reversible process that is catalyzed by SUMO-specific E1, E2, and E3 ligases and reversed by a family of SENPs (SUMO/Sentrin-specific proteases). SUMOylation covalently conjugates numerous cellular proteins, and affects their cellular localization and biological activity in numerous cellular processes. A wide range of neuronal proteins have been identified as SUMO substrates, and the disruption of SUMOylation results in defects in synaptic plasticity, neuronal excitability, and neuronal stress responses. SUMOylation disorders cause many neurodegenerative diseases, such as Parkinson's disease, Alzheimer's disease, and Huntington's disease. By modulating the ion channel subunit, SUMOylation imbalance is responsible for the development of various channelopathies. The regulation of protein SUMOylation in neurons may provide a new strategy for the development of targeted therapeutic drugs for neurodegenerative diseases and channelopathies.
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Affiliation(s)
- Xu Chen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yuhong Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Qiqi Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yuanyuan Qin
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Xinyi Yang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Zhengcao Xing
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yajie Shen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Hongmei Wu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yitao Qi
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
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Pulya S, Mahale A, Bobde Y, Routholla G, Patel T, Swati, Biswas S, Sharma V, Kulkarni OP, Ghosh B. PT3: A Novel Benzamide Class Histone Deacetylase 3 Inhibitor Improves Learning and Memory in Novel Object Recognition Mouse Model. ACS Chem Neurosci 2021; 12:883-892. [PMID: 33577290 DOI: 10.1021/acschemneuro.0c00721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The importance of HDAC3 in transcriptional regulation of genes associated with long-term memory is well established. Here, we report a novel HDAC3 inhibitor, PT3, with an excellent blood-brain barrier permeability and ability to enhance long-term memory in mouse model of novel object recognition (NOR). PT3 exhibited higher selectivity for HDAC3 over HDAC1, HDAC6, and HDAC8 compared to the reference compound CI994. PT3 has significant distribution into the brain tissue with Cmax at 0.5 h and t1/2 of 2.5 h. Treatment with PT3 significantly improved the discrimination index in C57/BL6 mice in the NOR model. Brain tissue analysis of mice treated with PT3 for NOR test showed significant increase in H3K9 acetylation in hippocampus. Gene expression analysis by RT-qPCR of the hippocampus tissue revealed upregulation of CREB 1, BDNF, TRKB, Nr4a2, c-fos, PKA, GAP 43, PSD 95 and MMP9 expression in mice treated with PT3. Similar to the phenotype observed in the in vivo experiment, we found upregulation of H3K9 acetylation, CREB 1, BDNF, TRKB, Nr4a2, c-fos, PKA, GAP 43 and MMP9 expression in mouse neuronal (N2A) cells treated with PT3. Thus, our preclinical studies identify PT3 as a potential HDAC3 selective inhibitor that crosses the blood-brain barrier and improves the long-term memory formation in C57/BL6 mice. We propose PT3 as a candidate with therapeutic potential to treat age-related memory loss as well as other disorders with declined memory function like Alzheimer's disease.
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Affiliation(s)
- Sravani Pulya
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Ashutosh Mahale
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Yamini Bobde
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Ganesh Routholla
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Tarun Patel
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Swati
- Department of Biological Science, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Swati Biswas
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Vivek Sharma
- Department of Biological Science, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Onkar P. Kulkarni
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Balaram Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
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Ramirez-Mejia G, Gil-Lievana E, Urrego-Morales O, Soto-Reyes E, Bermúdez-Rattoni F. Class I HDAC inhibition improves object recognition memory consolidation through BDNF/TrkB pathway in a time-dependent manner. Neuropharmacology 2021; 187:108493. [PMID: 33581144 DOI: 10.1016/j.neuropharm.2021.108493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 01/26/2021] [Accepted: 02/05/2021] [Indexed: 11/25/2022]
Abstract
There is increasing evidence showing that HDACs regulates BDNF (brain-derived neurotrophic factor) expression through its interaction with the Bdnf gene promoter, a key regulator to consolidate memory. Although the nuclear mechanisms regulated by HDACs that control BDNF expression have been partially described recently, the temporal events for memory consolidation remain unknown. Hence, in this work, we studied the temporal pattern for the activation of the BDNF/TrkB pathway through class I HDAC inhibition to enhance object recognition memory (ORM) consolidation. To this end, we inhibited class I HDAC into the insular cortex (IC) and a weak ORM protocol was used to assess temporal expression and function of the BDNF/TrkB pathway in the IC. We found that cortical class I HDAC inhibition enhanced long-term ORM, coincident with a clear peak of BDNF expression at 4 h after acquisition. Furthermore, the tyrosine kinase B (TrkB) receptor blockade at 4 h, but not at 8 h, impaired the consolidation of ORM. These results suggest that histone acetylation regulates the temporal expression of BDNF in cortical circuits potentiating the long-term recognition memory.
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Affiliation(s)
- Gerardo Ramirez-Mejia
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico
| | - Elvi Gil-Lievana
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico
| | - Oscar Urrego-Morales
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico
| | - Ernesto Soto-Reyes
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana, Unidad Cuajimalpa, 05348, Ciudad de Mexico
| | - Federico Bermúdez-Rattoni
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico.
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Mladenovic Djordjevic A, Loncarevic-Vasiljkovic N, Gonos ES. Dietary Restriction and Oxidative Stress: Friends or Enemies? Antioxid Redox Signal 2021; 34:421-438. [PMID: 32242468 DOI: 10.1089/ars.2019.7959] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Significance: It is well established that lifestyle and dietary habits have a tremendous impact on life span, the rate of aging, and the onset/progression of age-related diseases. Specifically, dietary restriction (DR) and other healthy dietary patterns are usually accompanied by physical activity and differ from Western diet that is rich in fat and sugars. Moreover, as the generation of reactive oxidative species is the major causative factor of aging, while DR could modify the level of oxidative stress, it has been proposed that DR increases both survival and longevity. Recent Advances: Despite the documented links between DR, aging, and oxidative stress, many issues remain to be addressed. For instance, the free radical theory of aging is under "re-evaluation," while DR as a golden standard for prolonging life span and ameliorating the effects of aging is also under debate. Critical Issues: This review article pays special attention to highlight the link between DR and oxidative stress in both aging and age-related diseases. We discuss in particular DR's capability to counteract the consequences of oxidative stress and the molecular mechanisms involved in these processes. Future Directions: Although DR is undoubtedly beneficial, several considerations must be taken into account when designing the best dietary intervention. Use of intermittent fasting, daily food reduction, or DR mimetics? Future research should unravel the pros and cons of all these processes. Antioxid. Redox Signal. 34, 421-438.
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Affiliation(s)
- Aleksandra Mladenovic Djordjevic
- Department for Neurobiology, Institute for Biological Research "Sinisa Stankovic," National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Natasa Loncarevic-Vasiljkovic
- Department for Neurobiology, Institute for Biological Research "Sinisa Stankovic," National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Efstathios S Gonos
- Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation, Athens, Greece
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Huang FL, Li F, Zhang WJ, Li SJ, Yang ZH, Yang TL, Qi J, Duan Q, Li CQ. Brd4 participates in epigenetic regulation of the extinction of remote auditory fear memory. Neurobiol Learn Mem 2021; 179:107383. [PMID: 33460788 DOI: 10.1016/j.nlm.2021.107383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 12/02/2020] [Accepted: 01/10/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Inaccurate fear memories can be maladaptive and potentially portrait a core symptomatic dimension of fear adaptive disorders such as post-traumatic stress disorder (PTSD), which is generally characterized by an intense and enduring memory for the traumatic events. Evidence exists in support of epigenetic regulation of fear behavior. Brd4, a member of the bromodomain and extra-terminal domain (BET) protein family, serves as a chromatin "reader" by binding to histones in acetylated lysine residues, and hence promotes transcriptional activities. However, less is known whether Brd4 participates in modulating cognitive activities especially memory formation and extinction. Here we provide evidence for a role of Brd4 in modulation of auditory fear memory. Auditory fear conditioning resulted in a biphasic Brd4 activation in the anterior cingulate cortex (ACC) and hippocampus of adult mice. Thus, Brd4 phosphorylation occurred 6 h and 3-14 days, respectively, after auditory fear conditioning. Systemic inhibition of Brd4 with a BET inhibitor, JQ1, impaired the extinction of remote (i.e., 14 days after conditioning) fear memory. Further, conditional Brd4 knockout in excitatory neurons of the forebrain impaired remote fear extinction as observed in the JQ1-treated mice. Herein, we identified that Brd4 is essential for extinction of remote fear in rodents. These results thus indicate that Brd4 potentially plays a role in the pathogenesis of PTSD.
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Affiliation(s)
- Fu-Lian Huang
- Department of Physiology, Yiyang Medical College, Yiyang 413000, China
| | - Fang Li
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Wen-Juan Zhang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Song-Ji Li
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Ze-Hua Yang
- Department of Physiology, Yiyang Medical College, Yiyang 413000, China
| | - Tian-Lun Yang
- Cardiovascular Division, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jun Qi
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | - Qiong Duan
- Cardiovascular Division, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Jiangxi Hypertension Research Institute, Nanchang 330006, China.
| | - Chang-Qi Li
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China.
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Li X, Fan X, Yuan X, Pang L, Hu S, Wang Y, Huang X, Song X. The Role of Butyric Acid in Treatment Response in Drug-Naïve First Episode Schizophrenia. Front Psychiatry 2021; 12:724664. [PMID: 34497548 PMCID: PMC8421030 DOI: 10.3389/fpsyt.2021.724664] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/28/2021] [Indexed: 12/25/2022] Open
Abstract
Background: Butyric acid, a major short-chain fatty acid (SCFA), has an important role in the microbiota-gut-brain axis and brain function. This study investigated the role of butyric acid in treatment response in drug-naïve first episode schizophrenia. Methods: The study recruited 56 Chinese Han schizophrenia inpatients with normal body weight and 35 healthy controls. Serum levels of butyric acid were measured using Gas Chromatography-Mass Spectrometer (GC-MS) analysis at baseline (for all participants) and 24 weeks after risperidone treatment (for patients). Clinical symptoms were measured using the Positive and Negative Syndrome Scale (PANSS) for patients at both time points. Results: At baseline, there was no significant difference in serum levels of butyric acid between patients and healthy controls (p = 0.206). However, there was a significant increase in serum levels of butyric acid in schizophrenia patients after 24-week risperidone treatment (p = 0.030). The PANSS total and subscale scores were decreased significantly after 24-week risperidone treatment (p's < 0.001). There were positive associations between baseline serum levels of butyric acid and the reduction ratio of the PANSS total and subscale scores after controlling for age, sex, education, and duration of illness (p's < 0.05). Further, there was a positive association between the increase in serum levels of butyric acid and the reduction of the PANSS positive symptoms subscale scores (r = 0.38, p = 0.019) after controlling for potential confounding factors. Conclusions: Increased serum levels of butyric acid might be associated with a favorable treatment response in drug-naïve, first episode schizophrenia. The clinical implications of our findings were discussed.
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Affiliation(s)
- Xue Li
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Biological Psychiatry International Joint Laboratory of Henan, Zhengzhou University, Zhengzhou, China.,Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
| | - Xiaoduo Fan
- Psychotic Disorders Program, UMass Memorial Medical Center, University of Massachusetts Medical School, Worcester, MA, United States
| | - Xiuxia Yuan
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Biological Psychiatry International Joint Laboratory of Henan, Zhengzhou University, Zhengzhou, China.,Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
| | - Lijuan Pang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Biological Psychiatry International Joint Laboratory of Henan, Zhengzhou University, Zhengzhou, China.,Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
| | - Shaohua Hu
- Center for Neuroscience and Department of Psychiatry of First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Brain Research Institute of Zhejiang University, Hangzhou, China
| | - Yunpeng Wang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Centre for Lifespan Changes in Brain and Cognition (LCBC), Department of Psychology, University of Oslo, Oslo, Norway
| | - Xufeng Huang
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, Australia
| | - Xueqin Song
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Biological Psychiatry International Joint Laboratory of Henan, Zhengzhou University, Zhengzhou, China.,Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
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47
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Alcohol. Alcohol 2021. [DOI: 10.1016/b978-0-12-816793-9.00001-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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48
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Yang YR, Kwon KS. Potential Roles of Exercise-Induced Plasma Metabolites Linking Exercise to Health Benefits. Front Physiol 2020; 11:602748. [PMID: 33343398 PMCID: PMC7744613 DOI: 10.3389/fphys.2020.602748] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/19/2020] [Indexed: 12/30/2022] Open
Abstract
Regular exercise has a myriad of health benefits. An increase in circulating exercise factors following exercise is a critical physiological response. Numerous studies have shown that exercise factors released from tissues during physical activity may contribute to health benefits via autocrine, paracrine, and endocrine mechanisms. Myokines, classified as proteins secreted from skeletal muscle, are representative exercise factors. The roles of myokines have been demonstrated in a variety of exercise-related functions linked to health benefits. In addition to myokines, metabolites are also exercise factors. Exercise changes the levels of various metabolites via metabolic reactions. Several studies have identified exercise-induced metabolites that positively influence organ functions. Here, we provide an overview of selected metabolites secreted into the circulation upon exercise.
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Affiliation(s)
- Yong Ryoul Yang
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Ki-Sun Kwon
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.,Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, South Korea
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Beaver M, Bhatnagar A, Panikker P, Zhang H, Snook R, Parmar V, Vijayakumar G, Betini N, Akhter S, Elefant F. Disruption of Tip60 HAT mediated neural histone acetylation homeostasis is an early common event in neurodegenerative diseases. Sci Rep 2020; 10:18265. [PMID: 33106538 PMCID: PMC7588445 DOI: 10.1038/s41598-020-75035-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022] Open
Abstract
Epigenetic dysregulation is a common mechanism shared by molecularly and clinically heterogenous neurodegenerative diseases (NDs). Histone acetylation homeostasis, maintained by the antagonistic activity of histone acetyltransferases (HATs) and histone deacetylases (HDACs), is necessary for appropriate gene expression and neuronal function. Disruption of neural acetylation homeostasis has been implicated in multiple types of NDs including Alzheimer's disease (AD), yet mechanisms underlying alterations remain unclear. We show that like AD, disruption of Tip60 HAT/HDAC2 balance with concomitant epigenetic repression of common Tip60 target neuroplasticity genes occurs early in multiple types of Drosophila ND models such as Parkinson's Disease (PD), Huntington's Disease (HD) and Amyotrophic Lateral Sclerosis (ALS). Repressed neuroplasticity genes show reduced enrichment of Tip60 and epigentic acetylation signatures at all gene loci examined with certain genes showing inappropriate HDAC2 repressor enrichment. Functional neuronal consequences for these disease conditions are reminiscent of human pathology and include locomotion, synapse morphology, and short-term memory deficits. Increasing Tip60 HAT levels specifically in the mushroom body learning and memory center in the Drosophila brain protects against locomotion and short-term memory function deficits in multiple NDs. Together, our results support a model by which Tip60 protects against neurological impairments in different NDs via similar modes of action.
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Affiliation(s)
- Mariah Beaver
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Akanksha Bhatnagar
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Priyalakshmi Panikker
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Haolin Zhang
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Renee Snook
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Visha Parmar
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Gayathri Vijayakumar
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Niteesha Betini
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Sunya Akhter
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA
| | - Felice Elefant
- Department of Biology, Drexel University, 3245 Chestnut Street, PISB 312, Philadelphia, PA, 19104, USA.
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50
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Lin L, Liu A, Li H, Feng J, Yan Z. Inhibition of Histone Methyltransferases EHMT1/2 Reverses Amyloid-β-Induced Loss of AMPAR Currents in Human Stem Cell-Derived Cortical Neurons. J Alzheimers Dis 2020; 70:1175-1185. [PMID: 31322566 DOI: 10.3233/jad-190190] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Emerging evidence suggests that epigenetic dysregulation of gene expression is one of the key molecular mechanisms of neurodegeneration and Alzheimer's disease (AD). However, little is known about the role of epigenetic dysregulation on synaptic dysfunction in humans, because of the difficulties of obtaining live human neurons. Here we generated mature human cortical neurons differentiated from human embryonic stem cells, and exposed them to amyloid-β (Aβ). We found that the histone methyltransferase, EHMT1, which catalyzes histone lysine 9 dimethylation (H3K9me2, a mark for gene repression), was significantly elevated in Aβ-treated human stem cell-derived neurons. Aβ treatment led to a significant reduction of AMPAR-mediated whole-cell current and excitatory postsynaptic current. Application of BIX01294, a selective inhibitor of EHMT1/2, restored AMPAR currents and glutamatergic synaptic transmission in Aβ-treated human cortical neurons. These results suggest that inhibition of the aberrant histone methylation is a novel approach to reverse Aβ-induced synaptic deficits in human neurons.
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Affiliation(s)
- Lin Lin
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY, USA
| | - Aiyi Liu
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY, USA
| | - Hanqin Li
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY, USA.,Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - Jian Feng
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY, USA.,Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - Zhen Yan
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY, USA.,Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
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