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Sharma V, Sharma P, Singh TG. Therapeutic potential of transient receptor potential (TRP) channels in psychiatric disorders. J Neural Transm (Vienna) 2024; 131:1025-1037. [PMID: 39007920 DOI: 10.1007/s00702-024-02803-0] [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: 03/11/2024] [Accepted: 06/28/2024] [Indexed: 07/16/2024]
Abstract
Psychiatric disorders such as Bipolar disorder, Anxiety, Major depressive disorder, Schizophrenia, Attention-deficit/hyperactivity disorder, as well as neurological disorders such as Migraine, are linked by the evidence of altered calcium homeostasis. The disturbance of intra-cellular calcium homeostasis disrupts the activity of numerous ion channels including transient receptor potential (TRP) channels. TRP channel families comprise non-selective calcium-permeable channels that have been implicated in variety of physiological processes in the brain, as well as in the pathogenesis of psychiatric disorders. Through a comprehensive review of current research and experimentation, this investigation elucidates the role of TRP channels in psychiatric disorders. Furthermore, this review discusses about the exploration of epigenetics and TRP channels in psychiatric disorders.
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Affiliation(s)
- Veerta Sharma
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India
| | - Prateek Sharma
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India.
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2
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Waris A, Asim M, Ullah A, Alhumaydhi FA. Various pharmacological agents in the pipeline against intractable epilepsy. Arch Pharm (Weinheim) 2024; 357:e2400229. [PMID: 38767508 DOI: 10.1002/ardp.202400229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/25/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024]
Abstract
Epilepsy is a noncommunicable chronic neurological disorder affecting people of all ages, with the highest prevalence in low and middle-income countries. Despite the pharmacological armamentarium, the plethora of drugs in the market, and other treatment options, 30%-35% of individuals still show resistance to the current medication, termed intractable epilepsy/drug resistance epilepsy, which contributes to 50% of the mortalities due to epilepsy. Therefore, the development of new drugs and agents is needed to manage this devastating epilepsy. We reviewed the pipeline of drugs in "ClinicalTrials. gov," which is the federal registry of clinical trials to identify drugs and other treatment options in various phases against intractable epilepsy. A total of 31 clinical trials were found regarding intractable epilepsy. Among them, 48.4% (15) are about pharmacological agents, of which 26.6% are in Phase 1, 60% are in Phase 2, and 13.3% are in Phase 3. The mechanism of action or targets of the majority of these agents are different and are more diversified than those of the approved drugs. In this article, we summarized various pharmacological agents in clinical trials, their backgrounds, targets, and mechanisms of action for the treatment of intractable epilepsy. Treatment options other than pharmacological ones, such as devices for brain stimulation, ketogenic diets, gene therapy, and others, are also summarized.
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Affiliation(s)
- Abdul Waris
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong
| | - Muhammad Asim
- Department of Neurosciences, City University of Hong Kong, Kowloon Tong, Hong Kong
- Centre for Regenerative Medicine and Health (CRMH), Hong Kong SAR
| | - Ata Ullah
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong
| | - Fahad A Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
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3
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Ciaccio AM, Tuttolomondo A. Epigenetics of cerebrovascular diseases: an update review of clinical studies. Epigenomics 2024; 16:1043-1055. [PMID: 39072474 DOI: 10.1080/17501911.2024.2377947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 07/05/2024] [Indexed: 07/30/2024] Open
Abstract
Cerebrovascular diseases, especially stroke, are critical and heterogenous clinical conditions associated with high mortality and chronic disability. Genome-wide association studies reveal substantial stroke heritability, though specific genetic variants account for a minor fraction of stroke risk, suggesting an essential role for the epigenome. Epigenome-wide association studies and candidate gene approaches show that DNA methylation patterns significantly influence stroke susceptibility. Additionally, chromatin remodelers and non-coding RNA regulate gene expression in response to ischemic conditions. In this updated review, we summarized the progress of knowledge on epigenetics in the field of ischemic stroke underlying opportunities and challenges.
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Affiliation(s)
- Anna Maria Ciaccio
- Internal Medicine & Stroke Care Ward, PROMISE Department, University of Palermo, Piazza delle Cliniche n.2, 90127, Palermo, Italy
| | - Antonino Tuttolomondo
- Internal Medicine & Stroke Care Ward, PROMISE Department, University of Palermo, Piazza delle Cliniche n.2, 90127, Palermo, Italy
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Xu L, An T, Jia B, Wu Q, Shen J, Jin J, Liu J, Li C. Histone deacetylase 3-specific inhibitor RGFP966 attenuates oxidative stress and inflammation after traumatic brain injury by activating the Nrf2 pathway. BURNS & TRAUMA 2024; 12:tkad062. [PMID: 38708192 PMCID: PMC11069425 DOI: 10.1093/burnst/tkad062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 05/07/2024]
Abstract
Background Oxidative stress (OS) and inflammatory reactions play pivotal roles in secondary brain injury after traumatic brain injury (TBI). Histone deacetylase 3 (HDAC3) controls the acetylation of histones and non-histones, which has a significant impact on the central nervous system's reaction to damage. This research determined the implications of RGFP966, a new and specific inhibitor of HDAC3, for the antioxidant (AO) systems mediated by nuclear factor erythroid2-related factor 2 (Nrf2) and the Nod-like receptor protein 3 (NLRP3) inflammasome in TBI. The study also studied the underlying mechanisms of RGFP966's actions. Our objective was to examine the impacts and underlying RGFP966 mechanisms in TBI. Methods In vitro, a rat cortical neuron OS model was induced by H2O2, followed by the addition of RGFP966 to the culture medium. Neurons were collected after 24 h for western blot (WB), terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and 2'-7'-dichlorodihydrofluorescein diacetate staining. In vivo, RGFP966 (10 mg/kg) was administered post-TBI. Brain tissue water content and modified neurological severity scores were assessed 72 h post-injury. Cortical tissues surrounding the focal injury were subjected to western blot, TUNEL staining, Nissl staining and immunofluorescence/immunohistochemistry staining, and malondialdehyde level, hindered glutathione content and superoxide dismutase activity were measured. Serum was collected for the enzyme-linked immunosorbent assay. Nrf2-specific shRNA lentivirus was injected into the lateral ventricle of rats for 7 days, and cerebral cortex tissue was analyzed by WB and real-time polymerase chain reaction. Results During in vitro and in vivo experiments, RGFP966 suppressed HDAC3 expression, promoted Nrf2 nuclear translocation, activated downstream AO enzymes, mitigated excessive reactive oxygen species production and alleviated nerve cell apoptosis. RGFP966 effectively reduced brain edema and histological damage and enhanced neurological and cognitive function in rats with TBI. RGFP966 markedly inhibited NLRP3 inflammasome activation mediated by high-mobility group box 1 (HMGB1)/toll-like receptor 4 (TLR4). Nrf2 knockdown in TBI rats attenuated the AO and anti-inflammatory, neuroprotective impacts of RGFP966. Conclusions Overall, our findings demonstrate that RGFP966 can mitigate the first brain damage and neurological impairments in TBI. The underlying mechanism involves triggering the Nrf2-mediated AO system and negatively regulating the HMGB1/TLR4-mediated NLRP3 inflammasome pathway.
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Affiliation(s)
- Lanjuan Xu
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Tingting An
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Baohui Jia
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Qiong Wu
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Jinggui Shen
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Jie Jin
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Jing Liu
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Chengjian Li
- Department of Critical Care Medicine, Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou, Henan Province 450001, China
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Fan W, Yang X, Zhou L, Xu J, Huang W, Tripathi AS. 5HT2A modulation attenuates pancreatic cancer induced pain mouse model by inhibiting HDAC. Acta Cir Bras 2024; 39:e392324. [PMID: 38629654 PMCID: PMC11020633 DOI: 10.1590/acb392324] [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: 08/19/2023] [Accepted: 09/15/2023] [Indexed: 04/19/2024] Open
Abstract
PURPOSE Patients have been severely suffered from cancer associated pain, and pancreatic cancer is the most severe form of cancer associated with pain. There are very few options available to manage it. The present report evaluated the effect of 5HT2A on pancreatic cancer associated pain. METHODS Pancreatic cancer was induced by injecting SW 1,990 cells (~3×106 in a 20 μL suspension) into the pancreas and formed a 2-3-mm vesicle using an inoculator fitted with a 26-gauge needle in BALB/c-nu mice. Survival rate and body weight of the mice were observed. Pain behaviour testing was performed at the end of each week (third and fourth week) after surgery. Inflammatory mediators and HDAC 2 proteins were determined in the spinal tissue using quantitative real-time polymerase chain reaction. RESULTS There was improvement in the survival rate and body weight in 5HT2A antagonist treated group than pancreatic cancer group of mice. Moreover, 5HT2A antagonist ameliorated the alteration in pain behaviour of pancreatic cancer mice. mRNA expression of HDAC2 and level of inflammatory cytokines were reduced in the spinal tissue of 5HT 2A antagonist treated group than pancreatic cancer group of mice. CONCLUSIONS Data revealed that 5HT2A antagonist ameliorates pain associated with pancreatic cancer mice by HDAC inhibition and inflammatory cytokines. The result of investigation supports that modulation of 5HT2A receptor could be used clinically to protects neuropathic pain in pancreatic cancer.
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Affiliation(s)
- Weiwei Fan
- Xi’an Gaoxin Hospital – Department of General Surgery – Xi’an – China
| | - Xijia Yang
- Xi’an Gaoxin Hospital – Department of General Surgery – Xi’an – China
| | - Liang Zhou
- Xi’an Gaoxin Hospital – Department of General Surgery – Xi’an – China
| | - Jianqing Xu
- Xi’an Gaoxin Hospital – Department of General Surgery – Xi’an – China
| | - Weihua Huang
- Xi’an Gaoxin Hospital – Department of General Surgery – Xi’an – China
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Makgoba TB, Kapp E, Egieyeh S, Joubert J. HDAC3 inhibitors: a patent review of their broad-spectrum applications as therapeutic agents. Expert Opin Ther Pat 2024; 34:273-295. [PMID: 38873766 DOI: 10.1080/13543776.2024.2363890] [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] [Accepted: 05/31/2024] [Indexed: 06/15/2024]
Abstract
INTRODUCTION Histone deacetylases (HDACs) are a class of zinc-dependent enzymes. They maintain acetylation homeostasis, with numerous biological functions and are associated with many diseases. HDAC3 strictly requires multi-subunit complex formation for activity. It is associated with the progression of numerous non-communicable diseases. Its widespread involvement in diseases makes it an epigenetic drug target. Preexisting HDAC3 inhibitors have many uses, highlighting the need for continued research in the discovery of HDAC3-selective inhibitors. AREA COVERED This review provides an overview of 24 patents published from 2010 to 2023, focusing on compounds that inhibit the HDAC3 isoenzyme. EXPERT OPINION HDAC3-selective inhibitors - pivotal for pharmacological applications, as single or combination therapies - are gaining traction as a strategy to move away from complications laden pan-HDAC inhibitors. Moreover, there is an unmet need for HDAC3 inhibitors with alternative zinc-binding groups (ZBGs) because some preexisting ZBGs have limitations related to toxicity and side effects. Difficulties in achieving HDAC3 selectivity may be due to isoform selectivity. However, advancements in computer-aided drug design and experimental data of HDAC3 3D co-crystallized models could lead to the discovery of novel HDAC3-selective inhibitors, which bear alternative ZBGs with balanced selectivity for HDAC3 and potency.
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Affiliation(s)
- Thabo Brighton Makgoba
- Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Erika Kapp
- Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Samuel Egieyeh
- Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
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Thakur V, Gonzalez MA, Parada M, Martinez RD, Chattopadhyay M. Role of Histone Deacetylase Inhibitor in Diabetic Painful Neuropathy. Mol Neurobiol 2024; 61:2283-2296. [PMID: 37875708 DOI: 10.1007/s12035-023-03701-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/06/2023] [Indexed: 10/26/2023]
Abstract
Diabetic painful neuropathy (DPN) is one of the most detrimental complications of diabetes. Alterations in neuroinflammatory mediators play significant roles in the development of DPN. Infiltration of the neutrophils and monocyte/macrophages contributes substantial role in the degenerative process of the distal sciatic nerve by forming neutrophil extracellular traps (NETs) under diabetic condition. Citrullination of histones due to increase in protein arginine deiminase (PAD) enzyme activity under hyperglycemia may promote NET formation, which can further increase the cytokine production by activating macrophages and proliferation of neutrophils. This study reveals that the increase in histone deacetylases (HDAC) is crucial in DPN and inhibition of HDAC using HDAC inhibitor (HDACi) FK228 would suppress NETosis and alleviate diabetic nerve degeneration and pain. FK228, also known as romidepsin, is FDA approved for the treatment of cutaneous T-cell lymphoma yet the molecular mechanisms of this drug are not completely understood in DPN. In this study, type 2 diabetic (T2D) mice with pain were treated with HDACi, FK228 1 mg/kg; I.P. 2 × /week for 3 weeks. The results demonstrate that FK228 treatment can alleviate thermal hyperalgesia and mechanical allodynia significantly along with changes in the expression of HDACs in the dorsal root ganglia (DRG) and spinal cord dorsal horn neurons of diabetic animals. The results also indicate that FK228 treatment can alter the expression of neutrophil elastase (NE), extracellular or cell free DNA (cfDNA), citrullinated histone-3 (CitH3), PADI4, growth-associated protein (GAP)-43, and glucose transporter (GLUT)-4. Overall, this study suggests that FK228 could amend the expression of nerve regeneration markers and inflammatory mediators in diabetic animals and may offer an alternative treatment approach for DPN.
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Affiliation(s)
- Vikram Thakur
- Department of Molecular and Translational Medicine, Center of Emphasis in Diabetes and Metabolism, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA
| | - Mayra A Gonzalez
- Department of Molecular and Translational Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA
| | - Maria Parada
- Francis Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA
| | - Robert D Martinez
- Francis Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA
| | - Munmun Chattopadhyay
- Department of Molecular and Translational Medicine, Center of Emphasis in Diabetes and Metabolism, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA.
- Department of Molecular and Translational Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA.
- Francis Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA.
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Jagaraj CJ, Shadfar S, Kashani SA, Saravanabavan S, Farzana F, Atkin JD. Molecular hallmarks of ageing in amyotrophic lateral sclerosis. Cell Mol Life Sci 2024; 81:111. [PMID: 38430277 PMCID: PMC10908642 DOI: 10.1007/s00018-024-05164-9] [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: 12/05/2023] [Revised: 01/21/2024] [Accepted: 02/06/2024] [Indexed: 03/03/2024]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal, severely debilitating and rapidly progressing disorder affecting motor neurons in the brain, brainstem, and spinal cord. Unfortunately, there are few effective treatments, thus there remains a critical need to find novel interventions that can mitigate against its effects. Whilst the aetiology of ALS remains unclear, ageing is the major risk factor. Ageing is a slowly progressive process marked by functional decline of an organism over its lifespan. However, it remains unclear how ageing promotes the risk of ALS. At the molecular and cellular level there are specific hallmarks characteristic of normal ageing. These hallmarks are highly inter-related and overlap significantly with each other. Moreover, whilst ageing is a normal process, there are striking similarities at the molecular level between these factors and neurodegeneration in ALS. Nine ageing hallmarks were originally proposed: genomic instability, loss of telomeres, senescence, epigenetic modifications, dysregulated nutrient sensing, loss of proteostasis, mitochondrial dysfunction, stem cell exhaustion, and altered inter-cellular communication. However, these were recently (2023) expanded to include dysregulation of autophagy, inflammation and dysbiosis. Hence, given the latest updates to these hallmarks, and their close association to disease processes in ALS, a new examination of their relationship to pathophysiology is warranted. In this review, we describe possible mechanisms by which normal ageing impacts on neurodegenerative mechanisms implicated in ALS, and new therapeutic interventions that may arise from this.
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Affiliation(s)
- Cyril Jones Jagaraj
- MND Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, 75 Talavera Road, Sydney, NSW, 2109, Australia
| | - Sina Shadfar
- MND Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, 75 Talavera Road, Sydney, NSW, 2109, Australia
| | - Sara Assar Kashani
- MND Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, 75 Talavera Road, Sydney, NSW, 2109, Australia
| | - Sayanthooran Saravanabavan
- MND Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, 75 Talavera Road, Sydney, NSW, 2109, Australia
| | - Fabiha Farzana
- MND Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, 75 Talavera Road, Sydney, NSW, 2109, Australia
| | - Julie D Atkin
- MND Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, 75 Talavera Road, Sydney, NSW, 2109, Australia.
- La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Melbourne, VIC, 3086, Australia.
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Paniri A, Hosseini MM, Akhavan-Niaki H. Alzheimer's Disease-Related Epigenetic Changes: Novel Therapeutic Targets. Mol Neurobiol 2024; 61:1282-1317. [PMID: 37700216 DOI: 10.1007/s12035-023-03626-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 08/30/2023] [Indexed: 09/14/2023]
Abstract
Aging is a significant risk factor for Alzheimer's disease (AD), although the precise mechanism and molecular basis of AD are not yet fully understood. Epigenetic mechanisms, such as DNA methylation and hydroxymethylation, mitochondrial DNA methylation, histone modifications, and non-coding RNAs (ncRNAs), play a role in regulating gene expression related to neuron plasticity and integrity, which are closely associated with learning and memory development. This review describes the impact of dynamic and reversible epigenetic modifications and factors on memory and plasticity throughout life, emphasizing their potential as target for therapeutic intervention in AD. Additionally, we present insight from postmortem and animal studies on abnormal epigenetics regulation in AD, as well as current strategies aiming at targeting these factors in the context of AD therapy.
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Affiliation(s)
- Alireza Paniri
- Genetics Department, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
- Zoonoses Research Center, Pasteur Institute of Iran, Amol, Iran
| | | | - Haleh Akhavan-Niaki
- Genetics Department, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran.
- Zoonoses Research Center, Pasteur Institute of Iran, Amol, Iran.
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Muenstermann C, Clemens KJ. Epigenetic mechanisms of nicotine dependence. Neurosci Biobehav Rev 2024; 156:105505. [PMID: 38070842 DOI: 10.1016/j.neubiorev.2023.105505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/09/2023] [Accepted: 12/04/2023] [Indexed: 12/18/2023]
Abstract
Smoking continues to be a leading cause of preventable disease and death worldwide. Nicotine dependence generates a lifelong propensity towards cravings and relapse, presenting an ongoing challenge for the development of treatments. Accumulating evidence supports a role for epigenetics in the development and maintenance of addiction to many drugs of abuse, however, the involvement of epigenetics in nicotine dependence is less clear. Here we review evidence that nicotine interacts with epigenetic mechanisms to enable the maintenance of nicotine-seeking across time. Research across species suggests that nicotine increases permissive histone acetylation, decreases repressive histone methylation, and modulates levels of DNA methylation and noncoding RNA expression throughout the brain. These changes are linked to the promoter regions of genes critical for learning and memory, reward processing and addiction. Pharmacological manipulation of enzymes that catalyze core epigenetic modifications regulate nicotine reward and associative learning, demonstrating a functional role of epigenetic modifications in nicotine dependence. These findings are consistent with nicotine promoting an overall permissive chromatin state at genes important for learning, memory and reward. By exploring these links through next-generation sequencing technologies, epigenetics provides a promising avenue for future interventions to treat nicotine dependence.
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Affiliation(s)
| | - Kelly J Clemens
- School of Psychology, University of New South Wales, Sydney, Australia.
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Jang J, Kim SR, Lee JE, Lee S, Son HJ, Choe W, Yoon KS, Kim SS, Yeo EJ, Kang I. Molecular Mechanisms of Neuroprotection by Ketone Bodies and Ketogenic Diet in Cerebral Ischemia and Neurodegenerative Diseases. Int J Mol Sci 2023; 25:124. [PMID: 38203294 PMCID: PMC10779133 DOI: 10.3390/ijms25010124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
Ketone bodies (KBs), such as acetoacetate and β-hydroxybutyrate, serve as crucial alternative energy sources during glucose deficiency. KBs, generated through ketogenesis in the liver, are metabolized into acetyl-CoA in extrahepatic tissues, entering the tricarboxylic acid cycle and electron transport chain for ATP production. Reduced glucose metabolism and mitochondrial dysfunction correlate with increased neuronal death and brain damage during cerebral ischemia and neurodegeneration. Both KBs and the ketogenic diet (KD) demonstrate neuroprotective effects by orchestrating various cellular processes through metabolic and signaling functions. They enhance mitochondrial function, mitigate oxidative stress and apoptosis, and regulate epigenetic and post-translational modifications of histones and non-histone proteins. Additionally, KBs and KD contribute to reducing neuroinflammation and modulating autophagy, neurotransmission systems, and gut microbiome. This review aims to explore the current understanding of the molecular mechanisms underpinning the neuroprotective effects of KBs and KD against brain damage in cerebral ischemia and neurodegenerative diseases, including Alzheimer's disease and Parkinson's disease.
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Affiliation(s)
- Jiwon Jang
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Su Rim Kim
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jo Eun Lee
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seoyeon Lee
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyeong Jig Son
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Wonchae Choe
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Kyung-Sik Yoon
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sung Soo Kim
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Eui-Ju Yeo
- Department of Biochemistry, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Insug Kang
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.J.); (S.R.K.); (J.E.L.); (S.L.); (H.J.S.); (W.C.); (K.-S.Y.); (S.S.K.)
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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Jankowski K, Jagana V, Bisserier M, Hadri L. Switch-Independent 3A: An Epigenetic Regulator in Cancer with New Implications for Pulmonary Arterial Hypertension. Biomedicines 2023; 12:10. [PMID: 38275371 PMCID: PMC10813728 DOI: 10.3390/biomedicines12010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/03/2023] [Accepted: 12/15/2023] [Indexed: 01/27/2024] Open
Abstract
Epigenetic mechanisms, including DNA methylation, histone modifications, and non-coding RNA, play a crucial role in the regulation of gene expression and are pivotal in biological processes like apoptosis, cell proliferation, and differentiation. SIN3a serves as a scaffold protein and facilitates interactions with transcriptional epigenetic partners and specific DNA-binding transcription factors to modulate gene expression by adding or removing epigenetic marks. However, the activation or repression of gene expression depends on the factors that interact with SIN3a, as it can recruit both transcriptional activators and repressors. The role of SIN3a has been extensively investigated in the context of cancer, including melanoma, lung, and breast cancer. Our group is interested in defining the roles of SIN3a and its partners in pulmonary vascular disease. Pulmonary arterial hypertension (PAH) is a multifactorial disease often described as a cancer-like disease and characterized by disrupted cellular metabolism, sustained vascular cell proliferation, and resistance to apoptosis. Molecularly, PAH shares many common signaling pathways with cancer cells, offering the opportunity to further consider therapeutic strategies used for cancer. As a result, many signaling pathways observed in cancer were studied in PAH and have encouraged new research studying SIN3a's role in PAH due to its impact on cancer growth. This comparison offers new therapeutic options. In this review, we delineate the SIN3a-associated epigenetic mechanisms in cancer and PAH cells and highlight their impact on cell survival and proliferation. Furthermore, we explore in detail the role of SIN3a in cancer to provide new insights into its emerging role in PAH pathogenesis.
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Affiliation(s)
- Katherine Jankowski
- Center for Translational Medicine and Pharmacology, Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Vineeta Jagana
- Department of Cell Biology and Anatomy & Physiology, New York Medical College, 15 Dana Road, BSB 131A, Valhalla, NY 10595, USA; (V.J.); (M.B.)
| | - Malik Bisserier
- Department of Cell Biology and Anatomy & Physiology, New York Medical College, 15 Dana Road, BSB 131A, Valhalla, NY 10595, USA; (V.J.); (M.B.)
| | - Lahouaria Hadri
- Center for Translational Medicine and Pharmacology, Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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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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14
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Hobson AD. Antibody drug conjugates beyond cytotoxic payloads. PROGRESS IN MEDICINAL CHEMISTRY 2023; 62:1-59. [PMID: 37981349 DOI: 10.1016/bs.pmch.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
For many years, antibody drug conjugates (ADC) have teased with the promise of targeted payload delivery to diseased cells, embracing the targeting of the antibody to which a cytotoxic payload is conjugated. During the past decade this promise has started to be realised with the approval of more than a dozen ADCs for the treatment of various cancers. Of these ADCs, brentuximab vedotin really laid the foundations of a template for a successful ADC with lysosomal payload release from a cleavable dipeptide linker, measured DAR by conjugation to the Cys-Cys interchain bonds of the antibody and a cytotoxic payload. Using this ADC design model oncology has now expanded their repertoire of payloads to include non-cytotoxic compounds. These new payload classes have their origins in prior medicinal chemistry programmes aiming to design selective oral small molecule drugs. While this may not have been achieved, the resulting compounds provide excellent starting points for ADC programmes with some compounds amenable to immediate linker attachment while for others extensive SAR and structural information offer invaluable design insights. Many of these new oncology payload classes are of interest to other therapeutic areas facilitating rapid access to drug-linkers for exploration as non-oncology ADCs. Other therapeutic areas have also pursued unique payload classes with glucocorticoid receptor modulators (GRM) being the most clinically advanced in immunology. Here, ADC payloads come full circle, as oncology is now investigating GRM payloads for the treatment of cancer. This chapter aims to cover all these new ADC approaches while describing the medicinal chemistry origins of the new non-cytotoxic payloads.
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Affiliation(s)
- Adrian D Hobson
- Small Molecule Therapeutics & Platform Technologies, AbbVie Bioresearch Center, Worcester, MA, United States.
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15
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Aggarwal A, Yadav B, Sharma N, Kaur R, Rishi V. Disruption of histone acetylation homeostasis triggers cognitive dysfunction in experimental diabetes. Neurochem Int 2023; 170:105592. [PMID: 37598859 DOI: 10.1016/j.neuint.2023.105592] [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: 07/03/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 08/22/2023]
Abstract
Epigenetic mechanisms related to diabetes-afflicted CNS complications are largely unknown. The present study investigated the role of histone acetylation mechanisms triggering cognitive dysfunction in the Type 1 and 2 diabetic mice model. Dynamic changes in diabetic parameters like fasting blood glucose levels, glucose tolerance test, and insulin levels were observed after the induction of diabetes. Cognitive performance was significantly diminished in T1D and T2D mice examined by the Morris water maze, novel object recognition test, and Y Maze as compared to controls. Histone profiling revealed a significant reduction in H3K9/14 and H4K12 acetylation in the cortex and hippocampus of T1D and T2D mice vs Controls. While histone deacetylase (HDAC) activity was significantly elevated in brain regions of T1D and T2D mice, the histone acetyltransferase (HAT) activity remain unchanged. Significantly increased HDAC 2, HDAC 3 protein and mRNA expression observed in T1D and T2D brain regions may corroborate for increased HDAC activity. No significant change was observed in protein and mRNA expression of HDAC 1, 5, 6, and 7 in diabetic brains. Reduced H3K9/14 and H4K12 acetylation paralleled transcriptional repression of memory-related markers BDNF, SYP, and PSD-95 in the cortex and hippocampus of T1D and T2D. Pharmacological inhibition of HDAC activity by Trichostatin A enhanced the cognitive changes observed in T1D and T2D by ameliorating BDNF, SYP, Psd-95. The present study provides a better insight into molecular mechanisms related to diabetes-dependent memory changes that can help to generate new advances for therapeutics to be developed in this area.
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Affiliation(s)
- Aanchal Aggarwal
- National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, SAS Nagar, Punjab, India.
| | - Binduma Yadav
- National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, SAS Nagar, Punjab, India; Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Nishtha Sharma
- National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, SAS Nagar, Punjab, India
| | - Raminder Kaur
- National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, SAS Nagar, Punjab, India; Department of Biotechnology, Sector-25, BMS Block I, Panjab University, Chandigarh, India
| | - Vikas Rishi
- National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, SAS Nagar, Punjab, India.
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16
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Pulya S, Himaja A, Paul M, Adhikari N, Banerjee S, Routholla G, Biswas S, Jha T, Ghosh B. Selective HDAC3 Inhibitors with Potent In Vivo Antitumor Efficacy against Triple-Negative Breast Cancer. J Med Chem 2023; 66:12033-12058. [PMID: 37660352 DOI: 10.1021/acs.jmedchem.3c00614] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
HDAC3 modulation shows promise for breast cancer, including triple-negative cases. Novel pyrazino-hydrazide-based HDAC3 inhibitors were designed and synthesized. Lead compound 4i exhibited potent HDAC3 inhibition (IC50 = 14 nM) with at least 121-fold selectivity. It demonstrated strong cytotoxicity against triple-negative breast cancer cells (IC50: 0.55 μM for 4T1, 0.74 μM for MDA-MB-231) with least normal cell toxicity. Metabolically stable 4i displayed a superior pharmacokinetic profile. A dose-dependent therapeutic efficacy of 4i was observed in a tumor-bearing mouse model. The biomarker analysis with tumor tissues displayed enhanced acetylation on Ac-H3K9, Ac-H3K27, and Ac-H4K12 compared to Ac-tubulin and Ac-SMC3 indicating HDAC3 selectivity of 4i in vivo. The immunoblotting study with tumor tissue showed upregulation of apoptotic proteins caspase-3, caspase-7, and cytochrome c and the downregulation of proliferation markers Bcl-2, CD44, EGFR, and Ki-67. Compound 4i represents a promising candidate for targeted breast cancer therapy, particularly for cases with triple-negative breast cancer.
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Affiliation(s)
- Sravani Pulya
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Hyderabad Campus, Shamirpet, Hyderabad 500078, India
| | - Ambati Himaja
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Hyderabad Campus, Shamirpet, Hyderabad 500078, India
| | - Milan Paul
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Hyderabad Campus, Shamirpet, Hyderabad 500078, India
| | - Nilanjan Adhikari
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, P.O. Box 17020, Kolkata, West Bengal 700032, India
| | - Suvankar Banerjee
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, P.O. Box 17020, Kolkata, West Bengal 700032, India
| | - Ganesh Routholla
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Hyderabad Campus, Shamirpet, Hyderabad 500078, India
| | - Swati Biswas
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Hyderabad Campus, Shamirpet, Hyderabad 500078, India
| | - Tarun Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, P.O. Box 17020, Kolkata, West Bengal 700032, India
| | - Balaram Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Hyderabad Campus, Shamirpet, Hyderabad 500078, India
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Zhang D, Zhang J, Wang Y, Wang G, Tang P, Liu Y, Zhang Y, Ouyang L. Targeting epigenetic modifications in Parkinson's disease therapy. Med Res Rev 2023; 43:1748-1777. [PMID: 37119043 DOI: 10.1002/med.21962] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 01/10/2023] [Accepted: 04/12/2023] [Indexed: 04/30/2023]
Abstract
Parkinson's disease (PD) is a multifactorial disease due to a complex interplay between genetic and epigenetic factors. Recent efforts shed new light on the epigenetic mechanisms involved in regulating pathways related to the development of PD, including DNA methylation, posttranslational modifications of histones, and the presence of microRNA (miRNA or miR). Epigenetic regulators are potential therapeutic targets for neurodegenerative disorders. In the review, we aim to summarize mechanisms of epigenetic regulation in PD, and describe how the DNA methyltransferases, histone deacetylases, and histone acetyltransferases that mediate the key processes of PD are attractive therapeutic targets. We discuss the use of inhibitors and/or activators of these regulators in PD models or patients, and how these small molecule epigenetic modulators elicit neuroprotective effects. Further more, given the importance of miRNAs in PD, their contributions to the underlying mechanisms of PD will be discussed as well, together with miRNA-based therapies.
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Affiliation(s)
- Dan Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
| | - Jifa Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
| | - Yuxi Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guan Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
| | - Pan Tang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
| | - Yun Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
| | - Yiwen Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
| | - Liang Ouyang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy and Joint Research Institution of Altitude Health and National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University, Sichuan, Chengdu, China
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18
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Gao J, Li L. Enhancement of neural regeneration as a therapeutic strategy for Alzheimer's disease (Review). Exp Ther Med 2023; 26:444. [PMID: 37614437 PMCID: PMC10443056 DOI: 10.3892/etm.2023.12143] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 07/18/2023] [Indexed: 08/25/2023] Open
Abstract
Alzheimer's disease (AD), the most common cause of dementia worldwide, has gradually become a global health concern for society and individuals with the process of global ageing. Although extensive research has been carried out on AD, the etiology and pathological mechanism of the disease are still unclear, and there is no specific drug to cure or delay AD progression. The exploration of enhancing nerve regeneration in AD has gradually attracted increasing attention. In the current review, the existing therapeutic strategies were summarized to induce nerve regeneration which can increase the number of neurons, and improve the survival of neurons, the plasticity of synapses and synaptic activity. The strategies include increasing neurotrophic expression (such as brain-derived neurotrophic factor and nerve growth factor), inhibiting acetylcholinesterase (such as donepezil, tacrine, rivastigmine and galanthamine), elevating histone deacetylase levels (such as RGFP-966, Tasquinimod, CM-414 and 44B), stimulating the brain by physiotherapy (such as near-infrared light, repetitive transcranial magnetic stimulation, and transcranial direct current stimulation) and transplanting exogenous neural stem cells. However, further evaluations need to be performed to determine the optimal treatment. The present study reviews recent interventions for enhancing adult neurogenesis and attempts to elucidate their mechanisms of action, which may provide a theoretical basis for inducing nerve regeneration to fight against AD.
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Affiliation(s)
- Junyan Gao
- Department of Physiology and Pharmacology, Health Science Centre, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Liping Li
- Department of Physiology and Pharmacology, Health Science Centre, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
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19
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Illi B, Nasi S. Myc beyond Cancer: Regulation of Mammalian Tissue Regeneration. PATHOPHYSIOLOGY 2023; 30:346-365. [PMID: 37606389 PMCID: PMC10443299 DOI: 10.3390/pathophysiology30030027] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/23/2023] Open
Abstract
Myc is one of the most well-known oncogenes driving tumorigenesis in a wide variety of tissues. From the brain to blood, its deregulation derails physiological pathways that grant the correct functioning of the cell. Its action is carried out at the gene expression level, where Myc governs basically every aspect of transcription. Indeed, in addition to its role as a canonical, chromatin-bound transcription factor, Myc rules RNA polymerase II (RNAPII) transcriptional pause-release, elongation and termination and mRNA capping. For this reason, it is evident that minimal perturbations of Myc function mirror malignant cell behavior and, consistently, a large body of literature mainly focuses on Myc malfunctioning. In healthy cells, Myc controls molecular mechanisms involved in pivotal functions, such as cell cycle (and proliferation thereof), apoptosis, metabolism and cell size, angiogenesis, differentiation and stem cell self-renewal. In this latter regard, Myc has been found to also regulate tissue regeneration, a hot topic in the research fields of aging and regenerative medicine. Indeed, Myc appears to have a role in wound healing, in peripheral nerves and in liver, pancreas and even heart recovery. Herein, we discuss the state of the art of Myc's role in tissue regeneration, giving an overview of its potent action beyond cancer.
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Affiliation(s)
- Barbara Illi
- Institute of Molecular Biology and Pathology, National Research Council, c/o Department of Biology and Biotechnology “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy
| | - Sergio Nasi
- Institute of Molecular Biology and Pathology, National Research Council, c/o Department of Biology and Biotechnology “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy
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20
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Lavertu-Jolin M, Chattopadhyaya B, Chehrazi P, Carrier D, Wünnemann F, Leclerc S, Dumouchel F, Robertson D, Affia H, Saba K, Gopal V, Patel AB, Andelfinger G, Pineyro G, Di Cristo G. Acan downregulation in parvalbumin GABAergic cells reduces spontaneous recovery of fear memories. Mol Psychiatry 2023; 28:2946-2963. [PMID: 37131076 PMCID: PMC10615765 DOI: 10.1038/s41380-023-02085-0] [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: 07/26/2022] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/04/2023]
Abstract
While persistence of fear memories is essential for survival, a failure to inhibit fear in response to harmless stimuli is a feature of anxiety disorders. Extinction training only temporarily suppresses fear memory recovery in adults, but it is highly effective in juvenile rodents. Maturation of GABAergic circuits, in particular of parvalbumin-positive (PV+) cells, restricts plasticity in the adult brain, thus reducing PV+ cell maturation could promote the suppression of fear memories following extinction training in adults. Epigenetic modifications such as histone acetylation control gene accessibility for transcription and help couple synaptic activity to changes in gene expression. Histone deacetylase 2 (Hdac2), in particular, restrains both structural and functional synaptic plasticity. However, whether and how Hdac2 controls the maturation of postnatal PV+ cells is not well understood. Here, we show that PV+- cell specific Hdac2 deletion limits spontaneous fear memory recovery in adult mice, while enhancing PV+ cell bouton remodeling and reducing perineuronal net aggregation around PV+ cells in prefrontal cortex and basolateral amygdala. Prefrontal cortex PV+ cells lacking Hdac2, show reduced expression of Acan, a critical perineuronal net component, which is rescued by Hdac2 re-expression. Pharmacological inhibition of Hdac2 before extinction training is sufficient to reduce both spontaneous fear memory recovery and Acan expression in wild-type adult mice, while these effects are occluded in PV+-cell specific Hdac2 conditional knockout mice. Finally, a brief knock-down of Acan expression mediated by intravenous siRNA delivery before extinction training but after fear memory acquisition is sufficient to reduce spontaneous fear recovery in wild-type mice. Altogether, these data suggest that controlled manipulation of PV+ cells by targeting Hdac2 activity, or the expression of its downstream effector Acan, promotes the long-term efficacy of extinction training in adults.
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Affiliation(s)
- Marisol Lavertu-Jolin
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
- Department of Neurosciences, Université de Montréal, Montréal, QC, Canada
| | | | - Pegah Chehrazi
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
- Department of Neurosciences, Université de Montréal, Montréal, QC, Canada
| | - Denise Carrier
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
| | - Florian Wünnemann
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
- Heidelberg University, Faculty of Medicine & Heidelberg University Hospital, Institute for Computational Biomedicine, Bioquant, Heidelberg, Germany
| | - Séverine Leclerc
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
| | - Félix Dumouchel
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
- Department of Neurosciences, Université de Montréal, Montréal, QC, Canada
| | - Derek Robertson
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
| | - Hicham Affia
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
| | - Kamal Saba
- CSIR-Centre for Cellular and Molecular Biology, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vijaya Gopal
- CSIR-Centre for Cellular and Molecular Biology, Hyderabad, 500007, India
| | - Anant Bahadur Patel
- CSIR-Centre for Cellular and Molecular Biology, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Gregor Andelfinger
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
- Department of Pediatrics, Université de Montréal, Montréal, QC, Canada
| | - Graçiela Pineyro
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada
- Department of Pharmacology, Université de Montréal, Montréal, QC, Canada
| | - Graziella Di Cristo
- Centre de Recherche, CHU Sainte-Justine (CHUSJ), Montréal, QC, Canada.
- Department of Neurosciences, Université de Montréal, Montréal, QC, Canada.
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21
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Li Y, Liu C, Wang G, Wang H, Liu X, Huang C, Chen Y, Fan L, Zhou L, Tong A. HDAC3 inhibitor (BRD3308) modulates microglial pyroptosis and neuroinflammation through PPARγ/NLRP3/GSDMD to improve neurological function after intraventricular hemorrhage in mice. Neuropharmacology 2023:109633. [PMID: 37327970 DOI: 10.1016/j.neuropharm.2023.109633] [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: 10/20/2022] [Revised: 05/01/2023] [Accepted: 06/06/2023] [Indexed: 06/18/2023]
Abstract
Neuroinflammation plays a vital role in intraventricular hemorrhage (IVH). Excessive neuroinflammation after IVH can activate the inflammasome in the cell and accelerate the occurrence of pyroptosis in cells, produce more inflammatory mediators, increase cell death, and lead to neurological deficits. Previous studies have reported that BRD3308 (BRD), an inhibitor of histone deacetylation by histone deacetylase 3 (HDAC3), suppresses inflammation-induced apoptosis and exhibits anti-inflammatory properties. However, it is unclear how BRD reduces the occurrence of the inflammatory cascade. In this study, we stereotactically punctured the ventricles of male C57BL/6J mice and injected autologous blood via the tail vein to simulate ventricular hemorrhage. Magnetic resonance imaging was used to detect ventricular hemorrhage and enlargement. Our findings demonstrated that BRD treatment significantly improved neurobehavioral performance and decreased neuronal loss, microglial activation, and pyroptosis in the hippocampus after IVH. At the molecular level, this treatment upregulated the expression of peroxisome proliferator-activated receptor γ (PPARγ) and inhibited NLRP3-mediated pyroptosis and inflammatory cytokines. Therefore, we concluded that BRD reduced pyroptosis and neuroinflammation and improve nerve function in part by activating the PPARγ/NLRP3/GSDMD signaling pathway. Our findings suggest a potential preventive role for BRD in IVH.
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Affiliation(s)
- Yuanyou Li
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Chang Liu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guoqing Wang
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Haoxiang Wang
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoyin Liu
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Cheng Huang
- State Key Laboratory of Biotherapy, West China Medical School, Sichuan University, Chengdu, China
| | - Yaxing Chen
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Lingjie Fan
- College of Computer Science, Sichuan University, Chengdu, China
| | - Liangxue Zhou
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China.
| | - Aiping Tong
- State Key Laboratory of Biotherapy, West China Medical School, Sichuan University, Chengdu, China.
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22
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Jia X, Lin W, Wang W. Regulation of chromatin organization during animal regeneration. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:19. [PMID: 37259007 DOI: 10.1186/s13619-023-00162-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/21/2023] [Indexed: 06/02/2023]
Abstract
Activation of regeneration upon tissue damages requires the activation of many developmental genes responsible for cell proliferation, migration, differentiation, and tissue patterning. Ample evidence revealed that the regulation of chromatin organization functions as a crucial mechanism for establishing and maintaining cellular identity through precise control of gene transcription. The alteration of chromatin organization can lead to changes in chromatin accessibility and/or enhancer-promoter interactions. Like embryogenesis, each stage of tissue regeneration is accompanied by dynamic changes of chromatin organization in regeneration-responsive cells. In the past decade, many studies have been conducted to investigate the contribution of chromatin organization during regeneration in various tissues, organs, and organisms. A collection of chromatin regulators were demonstrated to play critical roles in regeneration. In this review, we will summarize the progress in the understanding of chromatin organization during regeneration in different research organisms and discuss potential common mechanisms responsible for the activation of regeneration response program.
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Affiliation(s)
- Xiaohui Jia
- National Institute of Biological Sciences, Beijing, 102206, China
- China Agricultural University, Beijing, 100083, China
| | - Weifeng Lin
- National Institute of Biological Sciences, Beijing, 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China
| | - Wei Wang
- National Institute of Biological Sciences, Beijing, 102206, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China.
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23
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Maejima H, Okamura M, Inoue T, Takamatsu Y, Nishio T, Liu Y. Epigenetic modifications in the motor cortex caused by exercise or pharmacological inhibition of histone deacetylases (HDACs) after intracerebral hemorrhage (ICH). Brain Res 2023; 1806:148286. [PMID: 36801267 DOI: 10.1016/j.brainres.2023.148286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/30/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023]
Abstract
Epigenetic regulation is expected to provide an enriched platform for neurorehabilitation of post-stroke patients. Acetylation of specific lysine residues in histones is a potent epigenetic target essential for transcriptional regulation. Exercise modulates histone acetylation and gene expression in neuroplasticity in the brain. This study sought to examine the effect of epigenetic treatment using a histone deacetylase (HDAC) inhibitor, sodium butyrate (NaB), and exercise on epigenetic markers in the bilateral motor cortex after intracerebral hemorrhage (ICH) to identify a more enriched neuronal condition for neurorehabilitation. Forty-one male Wistar rats were randomly divided into five groups: sham (n = 8), control (n = 9), NaB, exercise (n = 8), and NaB and exercise (n = 8). Intraperitoneal administration of an HDAC inhibitor (300 mg/kg NaB) and treadmill exercise (11 m/min for 30 min) was conducted five days a week for approximately-four weeks. ICH specifically decreased the acetylation level of histone H4 in the ipsilateral cortex, and HDAC inhibition with NaB increased the acetylation level of histone H4 over the sham level, accompanied by an improvement in motor function as assessed by the cylinder test. Exercise increased the acetylation levels of histones (H3 and H4) in the bilateral cortex. Synergistic effects of exercise and NaB were not observed during histone acetylation. Pharmacological treatment with a HDAC inhibitor and exercise can provide an enriched epigenetic platform for neurorehabilitation in an individual manner.
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Affiliation(s)
- Hiroshi Maejima
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan.
| | - Misato Okamura
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Takahiro Inoue
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Yasuyuki Takamatsu
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Taichi Nishio
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Yushan Liu
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
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Makievskaya CI, Popkov VA, Andrianova NV, Liao X, Zorov DB, Plotnikov EY. Ketogenic Diet and Ketone Bodies against Ischemic Injury: Targets, Mechanisms, and Therapeutic Potential. Int J Mol Sci 2023; 24:2576. [PMID: 36768899 PMCID: PMC9916612 DOI: 10.3390/ijms24032576] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/17/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023] Open
Abstract
The ketogenic diet (KD) has been used as a treatment for epilepsy since the 1920s, and its role in the prevention of many other diseases is now being considered. In recent years, there has been an intensive investigation on using the KD as a therapeutic approach to treat acute pathologies, including ischemic ones. However, contradictory data are observed for the effects of the KD on various organs after ischemic injury. In this review, we provide the first systematic analysis of studies conducted from 1980 to 2022 investigating the effects and main mechanisms of the KD and its mimetics on ischemia-reperfusion injury of the brain, heart, kidneys, liver, gut, and eyes. Our analysis demonstrated a high diversity of both the composition of the used KD and the protocols for the treatment of animals, which could be the reason for contradictory effects in different studies. It can be concluded that a true KD or its mimetics, such as β-hydroxybutyrate, can be considered as positive exposure, protecting the organ from ischemia and its negative consequences, whereas the shift to a rather similar high-calorie or high-fat diet leads to the opposite effect.
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Affiliation(s)
- Ciara I. Makievskaya
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Vasily A. Popkov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Nadezda V. Andrianova
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Xinyu Liao
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Dmitry B. Zorov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Egor Y. Plotnikov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
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25
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Shanker OR, Kumar S, Dixit AB, Banerjee J, Tripathi M, Sarat Chandra P. Epigenetics of neurological diseases. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 198:165-184. [DOI: 10.1016/bs.pmbts.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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26
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Vinogradov S, Chafee MV, Lee E, Morishita H. Psychosis spectrum illnesses as disorders of prefrontal critical period plasticity. Neuropsychopharmacology 2023; 48:168-185. [PMID: 36180784 PMCID: PMC9700720 DOI: 10.1038/s41386-022-01451-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/17/2022] [Accepted: 08/21/2022] [Indexed: 01/05/2023]
Abstract
Emerging research on neuroplasticity processes in psychosis spectrum illnesses-from the synaptic to the macrocircuit levels-fill key gaps in our models of pathophysiology and open up important treatment considerations. In this selective narrative review, we focus on three themes, emphasizing alterations in spike-timing dependent and Hebbian plasticity that occur during adolescence, the critical period for prefrontal system development: (1) Experience-dependent dysplasticity in psychosis emerges from activity decorrelation within neuronal ensembles. (2) Plasticity processes operate bidirectionally: deleterious environmental and experiential inputs shape microcircuits. (3) Dysregulated plasticity processes interact across levels of scale and time and include compensatory mechanisms that have pathogenic importance. We present evidence that-given the centrality of progressive dysplastic changes, especially in prefrontal cortex-pharmacologic or neuromodulatory interventions will need to be supplemented by corrective learning experiences for the brain if we are to help people living with these illnesses to fully thrive.
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Affiliation(s)
- Sophia Vinogradov
- Department of Psychiatry & Behavioral Science, University of Minnesota Medical School, Minneapolis, MN, USA.
| | - Matthew V Chafee
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Erik Lee
- Masonic Institute for the Developing Brain, University of Minnesota Medical School, Minneapolis, MN, USA
- University of Minnesota Informatics Institute, University of Minnesota, Minneapolis, MN, USA
| | - Hirofumi Morishita
- Department of Psychiatry, Neuroscience, & Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Mohammadi-Farani A, Fakhri S, Jalili C, Samimi Z. Intra-mPFC injection of sodium butyrate promotes BDNF expression and ameliorates extinction recall impairment in an experimental paradigm of post-traumatic stress disorder. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:1150-1158. [PMID: 36246060 PMCID: PMC9526891 DOI: 10.22038/ijbms.2022.65000.14312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 08/06/2022] [Indexed: 11/08/2022]
Abstract
Objectives Therapeutic strategies that facilitate extinction are promising in the treatment of post-traumatic stress disorder (PTSD). Brain-derived neurotrophic factor (BDNF) has a crucial role in neural plasticity, a process needed for the retention of fear extinction. In this study, we investigated the effects of local administration of a histone deacetylase (HDAC) inhibitor, sodium butyrate (NaBu), on BDNF transcription and behavioral markers of extinction in the single prolonged stress (SPS) model of PTSD. Materials and Methods NaBu was infused into the infralimbic (IL) subregion of the medial prefrontal cortex (mPFC) of male rats. The freezing response was recorded as the criterion to assess fear strength on the day of extinction as well as 24 hr later in the retention test. Other behavioral tests were also measured to evaluate the anxiety level, locomotor activity, and working memory on the retention day. HDAC activity and BDNF mRNA expression were evaluated after the behavioral experiments. Results NaBu facilitated the recall of fear extinction in SPS rats (P<0.0001). SPS rats had higher HDAC activity (P<0.0001) and lower BDNF expression (P<0.05) than non-SPS animals. Also, anxiety was higher in the SPS group (P<0.0001), but locomotor activity (P=0.61) and working memory (P=0.36) were not different between SPS and Non-SPS groups. Conclusion Our findings provide evidence that the mechanism of action of NaBu in the improvement of extinction recall is mediated, in part, by enhancing histone acetylation and reviving BDNF expression in IL.
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Affiliation(s)
- Ahmad Mohammadi-Farani
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran, Department of Physiology and Pharmacology, School of medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran,Corresponding author: Ahmad Mohammadi-Farani. Department of Physiology and Pharmacology, School of medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran. Tel: +98-38-33333057;
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Cyrus Jalili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Samimi
- Department of Immunology, School of medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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28
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Shen J, Han Q, Li W, Chen X, Lu J, Zheng J, Xue S. miR-383-5p Regulated by the Transcription Factor CTCF Affects Neuronal Impairment in Cerebral Ischemia by Mediating Deacetylase HDAC9 Activity. Mol Neurobiol 2022; 59:6307-6320. [PMID: 35927544 DOI: 10.1007/s12035-022-02840-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/01/2022] [Indexed: 11/26/2022]
Abstract
Stroke, the leading cause of long-term disability worldwide, is caused by the blockage or hemorage of cerebral arteries. The resultant cerebral ischemia causes local neuronal death and brain injury. Histone deacetylase 9 (HDAC9) has been reported to be elevated in ischemic brain injury, but its mechanism in stroke is still enigmatic. The present study aimed to unveil the manner of regulation of HDAC9 expression and the effect of HDAC9 activation on neuronal function in cerebral ischemia. MicroRNAs (miRNAs) targeting HDAC9 were predicted utilizing bioinformatics analysis. We then constructed the oxygen glucose deprivation (OGD) cell model and the middle cerebral artery occlusion (MCAO) rat model, and elucidated the expression of CCCTC binding factor (CTCF)/miR-383-5p/HDAC9. Targeting between miR-383-5p and HDAC9 was verified by dual-luciferase reporter assay and RNAi. After conducting an overexpression/knockdown assay, we assessed neuronal impairment and brain injury. We found that CTCF inhibited miR-383-5p expression via its enrichment in the promoter region of miR-383-5p, whereas the miR-383-5p targeted and inhibited HDAC9 expression. In the OGD model and the MCAO model, we confirmed that elevation of HDAC9 regulated by the CTCF/miR-383-5p/HDAC9 pathway mediated apoptosis induced by endoplasmic reticulum stress, while reduction of HDAC9 alleviated apoptosis and the symptoms of cerebral infarction in MCAO rats. Thus, the CTCF/miR-383-5p/HDAC9 pathway may present a target for drug development against ischemic brain injury.
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Affiliation(s)
- Jun Shen
- Department of Neurology, The First Affiliated Hospital of Soochow University, No.188, Shizi Road, Suzhou, 215006, People's Republic of China
- Department of Neurology, The Affiliated Huai'an Hospital of Xuzhou Medical University & The Second People's Hospital of Huai'an, Huai'an, 223302, People's Republic of China
| | - Qiu Han
- Department of Neurology, Huai'an First People's Hospital & The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China
| | - Wangjun Li
- Department of Neurology, Changshu No. 2 People's Hospital (The 5th Clinical Medical College of Yangzhou University), Changshu, 215501, People's Republic of China
| | - Xiaochang Chen
- Department of Neurology, Hongze Huai'an District People's Hospital, No. 102, Huai'an, 223100, People's Republic of China.
| | - Jingmin Lu
- Department of Neurology, The Affiliated Huai'an Hospital of Xuzhou Medical University & The Second People's Hospital of Huai'an, Huai'an, 223302, People's Republic of China
| | - Jinyu Zheng
- Department of Neurosurgery, The Affiliated Huai'an Hospital of Xuzhou Medical University & The Second People's Hospital of Huai'an, Huai'an, 223302, People's Republic of China
| | - Shouru Xue
- Department of Neurology, The First Affiliated Hospital of Soochow University, No.188, Shizi Road, Suzhou, 215006, People's Republic of China.
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Katayama S, Okahata C, Onozato M, Minami T, Maeshima M, Ogihara K, Yamazaki S, Takahashi Y, Nakamura S. Buckwheat Flour and Its Starch Prevent Age-Related Cognitive Decline by Increasing Hippocampal BDNF Production in Senescence-Accelerated Mouse Prone 8 Mice. Nutrients 2022; 14:nu14132708. [PMID: 35807886 PMCID: PMC9269199 DOI: 10.3390/nu14132708] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 11/24/2022] Open
Abstract
Buckwheat is an important pseudo-cereal crop worldwide. This study investigated whether long-term administration of buckwheat can suppress age-related cognitive decline in senescence-accelerated mouse prone 8 (SAMP8) mice. For 26 weeks, 18-week-old male SAMP8 mice were fed a standard diet containing 5% (w/w) buckwheat, Tartary buckwheat, wheat, or rice flour. In the Barnes maze and passive avoidance tests, mice fed buckwheat whole flour (BWF) showed improved cognitive performance compared to those fed a control diet, while no improvement was noticed in case of the other diets. Analysis of the gut microbiota showed that BWF and buckwheat outer flour administration increased the abundance of Lactococcus and Ruminiclostridium, respectively, at the genus level. The expression levels of brain-derived neurotrophic factor (BDNF), postsynaptic Arc and PSD95, and the mature neuronal marker NeuN in the hippocampus were increased after BWF administration, which was induced by the activation of the ERK/CREB signaling pathway and histone H3 acetylation. A similar increase in cognitive performance-related hippocampal BDNF expression in SAMP8 mice was observed after the oral administration of starch prepared from BWF. Therefore, the long-term administration of BWF suppresses cognitive decline by increasing hippocampal BDNF production in SAMP8 mice.
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Affiliation(s)
- Shigeru Katayama
- Department of Agriculture, Graduate School of Science and Technology, Shinshu University, 8304 Minamiminowa, Kamiina, Nagano 399-4598, Japan; (C.O.); (S.N.)
- Department of Biomolecular Innovation, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 8304 Minamiminowa, Kamiina, Nagano 399-4598, Japan
- Correspondence: ; Tel.: +81-265-77-1603
| | - Chizuru Okahata
- Department of Agriculture, Graduate School of Science and Technology, Shinshu University, 8304 Minamiminowa, Kamiina, Nagano 399-4598, Japan; (C.O.); (S.N.)
| | - Masashi Onozato
- Nikkoku Seifun Co., Ltd., 1-16-2 Minamichitose, Nagano 380-0823, Japan; (M.O.); (T.M.); (M.M.)
| | - Takaaki Minami
- Nikkoku Seifun Co., Ltd., 1-16-2 Minamichitose, Nagano 380-0823, Japan; (M.O.); (T.M.); (M.M.)
| | - Masanaga Maeshima
- Nikkoku Seifun Co., Ltd., 1-16-2 Minamichitose, Nagano 380-0823, Japan; (M.O.); (T.M.); (M.M.)
| | - Kazuaki Ogihara
- Nagano Prefecture General Industrial Technology Center, 205-1 Kurita, Nagano 380-0921, Japan; (K.O.); (S.Y.); (Y.T.)
| | - Shinya Yamazaki
- Nagano Prefecture General Industrial Technology Center, 205-1 Kurita, Nagano 380-0921, Japan; (K.O.); (S.Y.); (Y.T.)
| | - Yuta Takahashi
- Nagano Prefecture General Industrial Technology Center, 205-1 Kurita, Nagano 380-0921, Japan; (K.O.); (S.Y.); (Y.T.)
| | - Soichiro Nakamura
- Department of Agriculture, Graduate School of Science and Technology, Shinshu University, 8304 Minamiminowa, Kamiina, Nagano 399-4598, Japan; (C.O.); (S.N.)
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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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Sharma R, Sharma S, Thakur A, Singh A, Singh J, Nepali K, Liou JP. The Role of Epigenetic Mechanisms in Autoimmune, Neurodegenerative, Cardiovascular, and Imprinting Disorders. Mini Rev Med Chem 2022; 22:1977-2011. [PMID: 35176978 DOI: 10.2174/1389557522666220217103441] [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: 09/10/2021] [Revised: 10/01/2021] [Accepted: 11/11/2021] [Indexed: 11/22/2022]
Abstract
Epigenetic mutations like aberrant DNA methylation, histone modifications, or RNA silencing are found in a number of human diseases. This review article discusses the epigenetic mechanisms involved in neurodegenerative disorders, cardiovascular disorders, auto-immune disorder, and genomic imprinting disorders. In addition, emerging epigenetic therapeutic strategies for the treatment of such disorders are presented. Medicinal chemistry campaigns highlighting the efforts of the chemists invested towards the rational design of small molecule inhibitors have also been included. Pleasingly, several classes of epigenetic inhibitors, DNMT, HDAC, BET, HAT, and HMT inhibitors along with RNA based therapies have exhibited the potential to emerge as therapeutics in the longer run. It is quite hopeful that epigenetic modulator-based therapies will advance to clinical stage investigations by leaps and bounds.
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Affiliation(s)
- Ram Sharma
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Sachin Sharma
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Amandeep Thakur
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Arshdeep Singh
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Jagjeet Singh
- School of Pharmacy, University of Queensland, Brisbane, QLD, Australia.,Department of Pharmacy, Rayat-Bahara Group of Institutes, Hoshiarpur, India
| | - Kunal Nepali
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Jing Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
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Inhibition of class I HDACs preserves hair follicle inductivity in postnatal dermal cells. Sci Rep 2021; 11:24056. [PMID: 34911993 PMCID: PMC8674223 DOI: 10.1038/s41598-021-03508-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/03/2021] [Indexed: 11/09/2022] Open
Abstract
Induction of new hair follicles (HFs) may be an ultimate treatment goal for alopecia; however, functional cells with HF inductivity must be expanded in bulk for clinical use. In vitro culture conditions are completely different from the in vivo microenvironment. Although fetal and postnatal dermal cells (DCs) have the potential to induce HFs, they rapidly lose this HF inductivity during culture, accompanied by a drastic change in gene expression. This suggests that epigenetic regulation may be involved. Of the various histone deacetylases (HDACs), Class I HDACs are noteworthy because they are ubiquitously expressed and have the strongest deacetylase activity. This study revealed that DCs from postnatal mice rapidly lose HF inductivity and that this reduction is accompanied by a significant decrease in histone H3 acetylation. However, MS-275, an inhibitor of class I HDACs, preserves HF inductivity in DCs during culture, increasing alkaline phosphatase activity and upregulating HF inductive genes such as BMP4, HEY1, and WIF1. In addition, the inhibition of class I HDACs activates the Wnt signaling pathway, the most well-described molecular pathway in HF development, via increased histone H3 acetylation within the promoter region of the Wnt transcription factor LEF1. Our results suggest that class I HDACs could be a potential target for the neogenesis of HFs.
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Irwin AB, Bahabry R, Lubin FD. A putative role for lncRNAs in epigenetic regulation of memory. Neurochem Int 2021; 150:105184. [PMID: 34530054 PMCID: PMC8552959 DOI: 10.1016/j.neuint.2021.105184] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 08/29/2021] [Accepted: 08/31/2021] [Indexed: 12/12/2022]
Abstract
The central dogma of molecular genetics is defined as encoded genetic information within DNA, transcribed into messenger RNA, which contain the instructions for protein synthesis, thus imparting cellular functionality and ultimately life. This molecular genetic theory has given birth to the field of neuroepigenetics, and it is now well established that epigenetic regulation of gene transcription is critical to the learning and memory process. In this review, we address a potential role for a relatively new player in the field of epigenetic crosstalk - long non-coding RNAs (lncRNAs). First, we briefly summarize epigenetic mechanisms in memory formation and examine what little is known about the emerging role of lncRNAs during this process. We then focus discussions on how lncRNAs interact with epigenetic mechanisms to control transcriptional programs under various conditions in the brain, and how this may be applied to regulation of gene expression necessary for memory formation. Next, we explore how epigenetic crosstalk in turn serves to regulate expression of various individual lncRNAs themselves. To highlight the importance of further exploring the role of lncRNA in epigenetic regulation of gene expression, we consider the significant relationship between lncRNA dysregulation and declining memory reserve with aging, Alzheimer's disease, and epilepsy, as well as the promise of novel therapeutic interventions. Finally, we conclude with a discussion of the critical questions that remain to be answered regarding a role for lncRNA in memory.
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Affiliation(s)
- Ashleigh B Irwin
- Department of Neurobiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Rudhab Bahabry
- Department of Neurobiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Farah D Lubin
- Department of Neurobiology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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Demyanenko S, Dzreyan V, Sharifulina S. Histone Deacetylases and Their Isoform-Specific Inhibitors in Ischemic Stroke. Biomedicines 2021; 9:biomedicines9101445. [PMID: 34680562 PMCID: PMC8533589 DOI: 10.3390/biomedicines9101445] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/06/2021] [Accepted: 10/09/2021] [Indexed: 01/01/2023] Open
Abstract
Cerebral ischemia is the second leading cause of death in the world and multimodal stroke therapy is needed. The ischemic stroke generally reduces the gene expression due to suppression of acetylation of histones H3 and H4. Histone deacetylases inhibitors have been shown to be effective in protecting the brain from ischemic damage. Histone deacetylases inhibitors induce neurogenesis and angiogenesis in damaged brain areas promoting functional recovery after cerebral ischemia. However, the role of different histone deacetylases isoforms in the survival and death of brain cells after stroke is still controversial. This review aims to analyze the data on the neuroprotective activity of nonspecific and selective histone deacetylase inhibitors in ischemic stroke.
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Histone Modifications in Stem Cell Development and Their Clinical Implications. Stem Cell Reports 2021; 15:1196-1205. [PMID: 33296672 PMCID: PMC7724464 DOI: 10.1016/j.stemcr.2020.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/03/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023] Open
Abstract
Human stem cells bear a great potential for multiple therapeutic applications but at the same time constitute a major threat to human health in the form of cancer stem cells. The molecular processes that govern stem cell maintenance or differentiation have been extensively studied in model organisms or cell culture, but it has been difficult to extrapolate these insights to therapeutic applications. Recent advances in the field suggest that local and global changes in histone modifications that affect chromatin structure could influence the capability of cells to either maintain their stem cell identity or differentiate into specialized cell types. The enzymes that regulate these modifications are therefore among the prime targets for potential drugs that can influence and potentially improve the therapeutic application of stem cells. In this review, we discuss recent findings on the role of histone modifications in stem cell regulation and their potential implications for clinical applications.
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Zhou C, Liu M, Mei X, Li Q, Zhang W, Deng P, He Z, Xi Y, Tong T, Pi H, Lu Y, Chen C, Zhang L, Yu Z, Zhou Z, He M. Histone hypoacetylation contributes to neurotoxicity induced by chronic nickel exposure in vivo and in vitro. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:147014. [PMID: 34088129 DOI: 10.1016/j.scitotenv.2021.147014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/04/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Nickel (Ni) is a heavy metal that is both an environmental pollutant and a threat to human health. However, the effects of Ni on the central nervous system in susceptible populations have not been well established. In the present study, the neurotoxicity of Ni and its underlying mechanism were investigated in vivo and in vitro. Ni exposure through drinking water (10 mg Ni/L, 12 weeks) caused learning and memory impairment in mice. Reduced dendrite complexity was observed in both Ni-exposed mouse hippocampi and Ni-treated (200 μM, 72 h) primary cultured hippocampal neurons. The levels of histone acetylation, especially at histone H3 lysine 9 (H3K9ac), were reduced in Ni-exposed mouse hippocampi and cultured neurons. RNA sequencing and chromatin immunoprecipitation (ChIP) sequencing analyses revealed that H3K9ac-modulated gene expression were downregulated. Treatment with sodium butyrate, a histone deacetylase inhibitor, attenuated Ni-induced H3K9 hypoacetylation, neural gene downregulation and dendrite complexity reduction in cultured neurons. Sodium butyrate also restored Ni-induced memory impairment in mice. These results indicate that Ni-induced H3K9 hypoacetylation may be a contributor to the neurotoxicity of Ni. The finding that Ni disturbs histone acetylation in the nervous system may provide new insight into the health risk of chronic Ni exposure.
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Affiliation(s)
- Chao Zhou
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Mengyu Liu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China; Department of Medical Laboratory, General Hospital of the Central Theater Command of the Chinese People's Liberation Army, 430070 Wuhan, People's Republic of China
| | - Xiang Mei
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Qian Li
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University, 400037 Chongqing, People's Republic of China
| | - Wenjuan Zhang
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Ping Deng
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Zhixin He
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Yu Xi
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China
| | - Tong Tong
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China
| | - Huifeng Pi
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Yonghui Lu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Chunhai Chen
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Lei Zhang
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Zhengping Yu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China.
| | - Zhou Zhou
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China.
| | - Mindi He
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China.
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Enhanced Nerve Regeneration by Exosomes Secreted by Adipose-Derived Stem Cells with or without FK506 Stimulation. Int J Mol Sci 2021; 22:ijms22168545. [PMID: 34445251 PMCID: PMC8395161 DOI: 10.3390/ijms22168545] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/25/2021] [Accepted: 08/05/2021] [Indexed: 12/13/2022] Open
Abstract
Exosomes secreted by adipose-derived stem cells (ADSC-exo) reportedly improve nerve regeneration after peripheral nerve injury. Herein, we investigated whether pretreatment of ADSCs with FK506, an immunosuppressive drug that enhances nerve regeneration, could secret exosomes (ADSC-F-exo) that further augment nerve regeneration. Designed exosomes were topically applied to injured nerve in a mouse model of sciatic nerve crush injury to assess the nerve regeneration efficacy. Outcomes were determined by histomorphometric analysis of semi-thin nerve sections stained with toluidine blue, mouse neurogenesis PCR array, and neurotrophin expression in distal nerve segments. Isobaric tags for relative and absolute quantitation (iTRAQ) were used to profile potential exosomal proteins facilitating nerve regeneration. We observed that locally applied ADSC-exo and ADSC-F-exo significantly enhanced nerve regeneration after nerve crush injury. Pretreatment of ADSCs with FK506 failed to produce exosomes possessing more potent molecules for enhanced nerve regeneration. Proteomic analysis revealed that of 192 exosomal proteins detected in both ADSC-exo and ADSC-F-exo, histone deacetylases (HDACs), amyloid-beta A4 protein (APP), and integrin beta-1 (ITGB1) might be involved in enhancing nerve regeneration.
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Logan RW, Ozburn AR, Arey RN, Ketchesin KD, Winquist A, Crain A, Tobe BTD, Becker-Krail D, Jarpe MB, Xue X, Zong W, Huo Z, Parekh PK, Zhu X, Fitzgerald E, Zhang H, Oliver-Smith J, DePoy LM, Hildebrand MA, Snyder EY, Tseng GC, McClung CA. Valproate reverses mania-like behaviors in mice via preferential targeting of HDAC2. Mol Psychiatry 2021; 26:4066-4084. [PMID: 33235333 PMCID: PMC8141541 DOI: 10.1038/s41380-020-00958-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/20/2020] [Accepted: 11/06/2020] [Indexed: 12/15/2022]
Abstract
Valproate (VPA) has been used in the treatment of bipolar disorder since the 1990s. However, the therapeutic targets of VPA have remained elusive. Here we employ a preclinical model to identify the therapeutic targets of VPA. We find compounds that inhibit histone deacetylase proteins (HDACs) are effective in normalizing manic-like behavior, and that class I HDACs (e.g., HDAC1 and HDAC2) are most important in this response. Using an RNAi approach, we find that HDAC2, but not HDAC1, inhibition in the ventral tegmental area (VTA) is sufficient to normalize behavior. Furthermore, HDAC2 overexpression in the VTA prevents the actions of VPA. We used RNA sequencing in both mice and human induced pluripotent stem cells (iPSCs) derived from bipolar patients to further identify important molecular targets. Together, these studies identify HDAC2 and downstream targets for the development of novel therapeutics for bipolar mania.
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Affiliation(s)
- Ryan W. Logan
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
| | - Angela R. Ozburn
- Department of Behavioral Neuroscience, Portland Alcohol Research Center, Oregon Health & Science University, Portland, OR 97239, USA.,VA Portland Health Care System, Portland, OR 97239, USA
| | - Rachel N. Arey
- Department of Molecular and Cellular Biology and Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Kyle D. Ketchesin
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
| | - Alicia Winquist
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA.,Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
| | - Andrew Crain
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA.,Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
| | - Brian T. D. Tobe
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA.,Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA.,Department of Psychiatry, Veterans Administration Medical Center, La Jolla, CA 92037, USA
| | - Darius Becker-Krail
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
| | - Matthew B. Jarpe
- Regenacy Pharmaceuticals, 303 Wyman St, Suite 300, Waltham, MA, 02451, USA
| | - Xiangning Xue
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Wei Zong
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Zhiguang Huo
- Department of Biostatistics, University of Florida, Gainesville, FL, 32611, USA
| | - Puja K. Parekh
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Xiyu Zhu
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA.,Department of Neuroscience, University of Pittsburgh, PA, 15260, USA
| | - Ethan Fitzgerald
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
| | - Hui Zhang
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA.,Peking Union Medical College Hospital, Beijing, China 100730
| | - Jeffrey Oliver-Smith
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
| | - Lauren M. DePoy
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
| | - Mariah A. Hildebrand
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
| | - Evan Y. Snyder
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA.,Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA.,Department of Pediatrics, University of California San Diego, La Jolla, CA, 92037, USA
| | - George C. Tseng
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA.,Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Colleen A. McClung
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA.,Corresponding Author: Colleen A. McClung, Ph.D., Department of Psychiatry, 450 Technology Drive, Suite 223, Pittsburgh, PA 15219, , 412-624-5547
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Demyanenko S, Sharifulina S. The Role of Post-Translational Acetylation and Deacetylation of Signaling Proteins and Transcription Factors after Cerebral Ischemia: Facts and Hypotheses. Int J Mol Sci 2021; 22:ijms22157947. [PMID: 34360712 PMCID: PMC8348732 DOI: 10.3390/ijms22157947] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 02/07/2023] Open
Abstract
Histone deacetylase (HDAC) and histone acetyltransferase (HAT) regulate transcription and the most important functions of cells by acetylating/deacetylating histones and non-histone proteins. These proteins are involved in cell survival and death, replication, DNA repair, the cell cycle, and cell responses to stress and aging. HDAC/HAT balance in cells affects gene expression and cell signaling. There are very few studies on the effects of stroke on non-histone protein acetylation/deacetylation in brain cells. HDAC inhibitors have been shown to be effective in protecting the brain from ischemic damage. However, the role of different HDAC isoforms in the survival and death of brain cells after stroke is still controversial. HAT/HDAC activity depends on the acetylation site and the acetylation/deacetylation of the main proteins (c-Myc, E2F1, p53, ERK1/2, Akt) considered in this review, that are involved in the regulation of cell fate decisions. Our review aims to analyze the possible role of the acetylation/deacetylation of transcription factors and signaling proteins involved in the regulation of survival and death in cerebral ischemia.
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Affiliation(s)
- Svetlana Demyanenko
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, pr. Stachki 194/1, 344090 Rostov-on-Don, Russia
| | - Svetlana Sharifulina
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, pr. Stachki 194/1, 344090 Rostov-on-Don, Russia
- Neuroscience Center HiLife, University of Helsinki, Haartmaninkatu 8, P.O. Box 63, 00014 Helsinki, Finland
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Bisserier M, Mathiyalagan P, Zhang S, Elmastour F, Dorfmüller P, Humbert M, David G, Tarzami S, Weber T, Perros F, Sassi Y, Sahoo S, Hadri L. Regulation of the Methylation and Expression Levels of the BMPR2 Gene by SIN3a as a Novel Therapeutic Mechanism in Pulmonary Arterial Hypertension. Circulation 2021; 144:52-73. [PMID: 34078089 DOI: 10.1161/circulationaha.120.047978] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Epigenetic mechanisms are critical in the pathogenesis of pulmonary arterial hypertension (PAH). Previous studies have suggested that hypermethylation of the BMPR2 (bone morphogenetic protein receptor type 2) promoter is associated with BMPR2 downregulation and progression of PAH. Here, we investigated for the first time the role of SIN3a (switch-independent 3a), a transcriptional regulator, in the epigenetic mechanisms underlying hypermethylation of BMPR2 in the pathogenesis of PAH. METHODS We used lung samples from PAH patients and non-PAH controls, preclinical mouse and rat PAH models, and human pulmonary arterial smooth muscle cells. Expression of SIN3a was modulated using a lentiviral vector or a siRNA in vitro and a specific adeno-associated virus serotype 1 or a lentivirus encoding for human SIN3a in vivo. RESULTS SIN3a is a known transcriptional regulator; however, its role in cardiovascular diseases, especially PAH, is unknown. It is interesting that we detected a dysregulation of SIN3 expression in patients and in rodent models, which is strongly associated with decreased BMPR2 expression. SIN3a is known to regulate epigenetic changes. Therefore, we tested its role in the regulation of BMPR2 and found that BMPR2 is regulated by SIN3a. It is interesting that SIN3a overexpression inhibited human pulmonary arterial smooth muscle cells proliferation and upregulated BMPR2 expression by preventing the methylation of the BMPR2 promoter region. RNA-sequencing analysis suggested that SIN3a downregulated the expression of DNA and histone methyltransferases such as DNMT1 (DNA methyltransferase 1) and EZH2 (enhancer of zeste 2 polycomb repressive complex 2) while promoting the expression of the DNA demethylase TET1 (ten-eleven translocation methylcytosine dioxygenase 1). Mechanistically, SIN3a promoted BMPR2 expression by decreasing CTCF (CCCTC-binding factor) binding to the BMPR2 promoter. Last, we identified intratracheal delivery of adeno-associated virus serotype human SIN3a to be a beneficial therapeutic approach in PAH by attenuating pulmonary vascular and right ventricle remodeling, decreasing right ventricle systolic pressure and mean pulmonary arterial pressure, and restoring BMPR2 expression in rodent models of PAH. CONCLUSIONS All together, our study unveiled the protective and beneficial role of SIN3a in pulmonary hypertension. We also identified a novel and distinct molecular mechanism by which SIN3a regulates BMPR2 in human pulmonary arterial smooth muscle cells. Our study also identified lung-targeted SIN3a gene therapy using adeno-associated virus serotype 1 as a new promising therapeutic strategy for treating patients with PAH.
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Affiliation(s)
- Malik Bisserier
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
| | - Prabhu Mathiyalagan
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
| | - Shihong Zhang
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
| | - Firas Elmastour
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
| | - Peter Dorfmüller
- Hôpital Marie Lannelongue, Department of Pathology, Le Plessis Robinson, France (P.D.)
| | - Marc Humbert
- Université Paris-Sud, and Université Paris-Saclay, Hôpital Bicêtre, Le Kremlin-Bicêtre, Paris, France (M.H.).,Service de Pneumologie et Soins Intensifs Respiratoires and INSERM U999, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, Paris, France (M.H., F.P.)
| | | | - Sima Tarzami
- Department of Physiology and Biophysics, College of Medicine, Howard University, Washington, DC (S.T.)
| | - Thomas Weber
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
| | - Frederic Perros
- Service de Pneumologie et Soins Intensifs Respiratoires and INSERM U999, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, Paris, France (M.H., F.P.)
| | - Yassine Sassi
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
| | - Susmita Sahoo
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
| | - Lahouaria Hadri
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (M.B., P.M., S.Z., F.E., Y.S., T.W., S.S., L.H.)
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Epigenetic Modulation of Microglia Function and Phenotypes in Neurodegenerative Diseases. Neural Plast 2021; 2021:9912686. [PMID: 34194489 PMCID: PMC8181095 DOI: 10.1155/2021/9912686] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/14/2021] [Indexed: 12/14/2022] Open
Abstract
Microglia-mediated neuroinflammation is one of the most remarkable hallmarks of neurodegenerative diseases (NDDs), including AD, PD, and ALS. Accumulating evidence indicates that microglia play both neuroprotective and detrimental roles in the onset and progression of NDDs. Yet, the specific mechanisms of action surrounding microglia are not clear. Modulation of microglia function and phenotypes appears to be a potential strategy to reverse NDDs. Until recently, research into the epigenetic mechanisms of diseases has been gradually developed, making it possible to elucidate the molecular mechanisms underlying the epigenetic regulation of microglia in NDDs. This review highlights the function and phenotypes of microglia, elucidates the relationship between microglia, epigenetic modifications, and NDDs, as well as the possible mechanisms underlying the epigenetic modulation of microglia in NDDs with a focus on potential intervention strategies.
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Histone Deacetylase Inhibitors Ameliorate Morphological Defects and Hypoexcitability of iPSC-Neurons from Rubinstein-Taybi Patients. Int J Mol Sci 2021; 22:ijms22115777. [PMID: 34071322 PMCID: PMC8197986 DOI: 10.3390/ijms22115777] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/20/2021] [Accepted: 05/23/2021] [Indexed: 12/13/2022] Open
Abstract
Rubinstein-Taybi syndrome (RSTS) is a rare neurodevelopmental disorder caused by mutations in CREBBP or EP300 genes encoding CBP/p300 lysine acetyltransferases. We investigated the efficacy of the histone deacetylase inhibitor (HDACi) Trichostatin A (TSA) in ameliorating morphological abnormalities of iPSC-derived young neurons from P149 and P34 CREBBP-mutated patients and hypoexcitability of mature neurons from P149. Neural progenitors from both patients’ iPSC lines were cultured one week with TSA 20 nM and, only P149, for 6 weeks with TSA 0.2 nM, in parallel to neural progenitors from controls. Immunofluorescence of MAP2/TUJ1 positive cells using the Skeletonize Image J plugin evidenced that TSA partially rescued reduced nuclear area, and decreased branch length and abnormal end points number of both 45 days patients’ neurons, but did not influence the diminished percentage of their neurons with respect to controls. Patch clamp recordings of TSA-treated post-mitotic P149 neurons showed complete/partial rescue of sodium/potassium currents and significant enhancement of neuron excitability compared to untreated replicas. Correction of abnormalities of P149 young neurons was also affected by valproic acid 1 mM for 72 h, with some variation, with respect to TSA, on the morphological parameter. These findings hold promise for development of an epigenetic therapy to attenuate RSTS patients cognitive impairment.
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Ohmuro-Matsuyama Y, Kitaguchi T, Kimura H, Ueda H. Simple Fluorogenic Cellular Assay for Histone Deacetylase Inhibitors Based on Split-Yellow Fluorescent Protein and Intrabodies. ACS OMEGA 2021; 6:10039-10046. [PMID: 34056159 PMCID: PMC8153662 DOI: 10.1021/acsomega.0c06281] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 03/31/2021] [Indexed: 05/03/2023]
Abstract
Histone deacetylase (HDAC) inhibitors that regulate the posttranslational modifications of histone tails are therapeutic drugs for many diseases such as cancers, neurodegenerative diseases, and asthma; however, convenient and sensitive methods to measure the effect of HDAC inhibitors in cultured mammalian cells remain limited. In this study, a fluorogenic assay was developed to detect the acetylation of lysine 9 on histone H3 (H3K9ac), which is involved in several cancers, Alzheimer's disease, and autism spectrum disorder. To monitor the changes in H3K9ac levels, an H3K9ac-specific intrabody fused with a small fragment FP11 of the split-yellow fluorescent protein (YFP) (scFv-FP11) was expressed in mammalian cells, together with a larger YFP fragment FP1-10 fused with a nuclear localization signal. When the intranuclear level of H3K9ac is increased, the scFv-FP11 is more enriched in the nucleus via passive diffusion through the nuclear pores from the cytoplasm, which increases the chance of forming a fluorescent complex with the nuclear YFP1-10. The results showed that the YFP fluorescence increased when the cells were treated with HDAC inhibitors. Moreover, the sensitivity of the split YFP reporter system to three HDAC inhibitors was higher than that of a conventional cell viability test. The assay system will be a simple and sensitive detection method to evaluate HDAC inhibitor activities at the levels of both single cells and cell populations.
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Affiliation(s)
- Yuki Ohmuro-Matsuyama
- Laboratory
for Chemistry and Life Science, and Cell Biology Center, Institute
of Innovative Research, Tokyo Institute
of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
- Technology
Research Laboratory, Shimadzu Corporation, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237, Japan
| | - Tetsuya Kitaguchi
- Laboratory
for Chemistry and Life Science, and Cell Biology Center, Institute
of Innovative Research, Tokyo Institute
of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Hiroshi Kimura
- Laboratory
for Chemistry and Life Science, and Cell Biology Center, Institute
of Innovative Research, Tokyo Institute
of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Hiroshi Ueda
- Laboratory
for Chemistry and Life Science, and Cell Biology Center, Institute
of Innovative Research, Tokyo Institute
of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
- E-mail:
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44
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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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Kitahara M, Inoue T, Mani H, Takamatsu Y, Ikegami R, Tohyama H, Maejima H. Exercise and pharmacological inhibition of histone deacetylase improves cognitive function accompanied by an increase of gene expressions crucial for neuronal plasticity in the hippocampus. Neurosci Lett 2021; 749:135749. [PMID: 33610667 DOI: 10.1016/j.neulet.2021.135749] [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: 01/08/2021] [Revised: 02/09/2021] [Accepted: 02/13/2021] [Indexed: 02/08/2023]
Abstract
Exercise is recognized to increase the expression of neurotrophic genes in the hippocampus and prevent cognitive impairment. Histone deacetylase (HDAC) inhibitor acetylate histones and enhance gene transcription in epigenetic regulation. HDAC inhibitors are expected to be an efficacious pharmacological treatment for cognitive function. This study aimed to examine the effect of HDAC inhibitors and exercise on epigenetic markers and neurotrophic gene expression in the hippocampus to find a more enriched brain conditioning for cognitive function based on the synergic effects of pharmacological treatment and behavioral therapy. Thirteen-week-old male mice were divided into four groups. Intraperitoneal administration of an HDAC inhibitor (1.2 g/kg sodium butyrate, NaB) and treadmill exercise (approximately 10 m/min for 60 min) were performed 5 days a week for 4 weeks. NaB administration increased the expression of an immediate-early gene, a neurotrophin, and a neurotrophin receptor in the hippocampus. These results indicate that HDAC inhibition could present an enriched platform for neuronal plasticity in the hippocampus and cognitive function. The novel object recognition test showed that NaB administration increased the score. Notably, the step-through passive avoidance test showed improved learning and memory in the presence of exercise and exercise, indicating that the mice acquired fear memory, specifically in the presence of NaB administration plus exercise. This study found that repetitive administration of HDAC inhibitors improved cognitive function and HDAC inhibitor administration plus exercise has a synergic effect on learning and memory, accompanying the enhancement of crucial gene transcriptions for neuronal plasticity in the hippocampus.
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Affiliation(s)
- Mika Kitahara
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Takahiro Inoue
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan; Research Fellow of Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo, 102-0083, Japan
| | - Hiroki Mani
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Yasuyuki Takamatsu
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Ryo Ikegami
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Harukazu Tohyama
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Hiroshi Maejima
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan.
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46
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Zhong L, Yan J, Li H, Meng L. HDAC9 Silencing Exerts Neuroprotection Against Ischemic Brain Injury via miR-20a-Dependent Downregulation of NeuroD1. Front Cell Neurosci 2021; 14:544285. [PMID: 33584204 PMCID: PMC7873949 DOI: 10.3389/fncel.2020.544285] [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] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022] Open
Abstract
Cerebral stroke is an acute cerebrovascular disease that is a leading cause of death and disability worldwide. Stroke includes ischemic stroke and hemorrhagic strokes, of which the incidence of ischemic stroke accounts for 60–70% of the total number of strokes. Existing preclinical evidence suggests that inhibitors of histone deacetylases (HDACs) are a promising therapeutic intervention for stroke. In this study, the purpose was to investigate the possible effect of HDAC9 on ischemic brain injury, with the underlying mechanism related to microRNA-20a (miR-20a)/neurogenic differentiation 1 (NeuroD1) explored. The expression of HDAC9 was first detected in the constructed middle cerebral artery occlusion (MCAO)-provoked mouse model and oxygen-glucose deprivation (OGD)-induced cell model. Next, primary neuronal apoptosis, expression of apoptosis-related factors (Bax, cleaved caspase3 and bcl-2), LDH leakage rate, as well as the release of inflammatory factors (TNF-α, IL-1β, and IL-6) were evaluated by assays of TUNEL, Western blot, and ELISA. The relationships among HDAC9, miR-20a, and NeuroD1 were validated by in silico analysis and ChIP assay. HDAC9 was highly-expressed in MCAO mice and OGD-stimulated cells. Silencing of HDAC9 inhibited neuronal apoptosis and inflammatory factor release in vitro. HDAC9 downregulated miR-20a by enriching in its promoter region, while silencing of HDCA9 promoted miR-20a expression. miR-20a targeted Neurod1 and down-regulated its expression. Silencing of HDAC9 diminished OGD-induced neuronal apoptosis and inflammatory factor release in vitro as well as ischemic brain injury in vivo by regulating the miR-20a/NeuroD1 signaling. Overall, our study revealed that HDAC9 silencing could retard ischemic brain injury through the miR-20a/Neurod1 signaling.
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Affiliation(s)
- Liangjun Zhong
- Department of Neurosurgery, Pingyin County People's Hospital, Jinan, China
| | - Jinxiang Yan
- Department of Neurosurgery, Ningyang No. 1 People's Hospital, Tai'an, China
| | - Haitao Li
- Department of Neurology, Qihe County People's Hospital, Dezhou, China
| | - Lei Meng
- Department of Neurosurgery, Shandong Provincial Hospital, Jinan, China
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47
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Uzdensky AB, Demyanenko S. Histone acetylation and deacetylation in ischemic stroke. Neural Regen Res 2021; 16:1529-1530. [PMID: 33433467 PMCID: PMC8323678 DOI: 10.4103/1673-5374.303024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Anatoly B Uzdensky
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Svetlana Demyanenko
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
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48
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Momtaz AZ, Ahumada Sabagh AD, Gonzalez Amortegui JG, Salazar SA, Finessi A, Hernandez J, Christensen S, Serbus LR. A Role for Maternal Factors in Suppressing Cytoplasmic Incompatibility. Front Microbiol 2020; 11:576844. [PMID: 33240234 PMCID: PMC7680759 DOI: 10.3389/fmicb.2020.576844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/20/2020] [Indexed: 12/02/2022] Open
Abstract
Wolbachia are maternally transmitted bacterial endosymbionts, carried by approximately half of all insect species. Wolbachia prevalence in nature stems from manipulation of host reproduction to favor the success of infected females. The best known reproductive modification induced by Wolbachia is referred to as sperm-egg Cytoplasmic Incompatibility (CI). In CI, the sperm of Wolbachia-infected males cause embryonic lethality, attributed to paternal chromatin segregation defects during early mitotic divisions. Remarkably, the embryos of Wolbachia-infected females “rescue” CI lethality, yielding egg hatch rates equivalent to uninfected female crosses. Several models have been discussed as the basis for Rescue, and functional evidence indicates a major contribution by Wolbachia CI factors. A role for host contributions to Rescue remains largely untested. In this study, we used a chemical feeding approach to test for CI suppression capabilities by Drosophila simulans. We found that uninfected females exhibited significantly higher CI egg hatch rates in response to seven chemical treatments that affect DNA integrity, cell cycle control, and protein turnover. Three of these treatments suppressed CI induced by endogenous wRi Wolbachia, as well as an ectopic wMel Wolbachia infection. The results implicate DNA integrity as a focal aspect of CI suppression for different Wolbachia strains. The framework presented here, applied to diverse CI models, will further enrich our understanding of host reproductive manipulation by insect endosymbionts.
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Affiliation(s)
- Ajm Zehadee Momtaz
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
| | - Abraham D Ahumada Sabagh
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
| | - Julian G Gonzalez Amortegui
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
| | - Samuel A Salazar
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
| | - Andrea Finessi
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
| | - Jethel Hernandez
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
| | - Steen Christensen
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
| | - Laura R Serbus
- Department of Biological Sciences, Florida International University, Miami, FL, United States.,Biomolecular Sciences Institute, Florida International University, Miami, FL, United States
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49
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Maejima H, Kitahara M, Takamatsu Y, Mani H, Inoue T. Effects of exercise and pharmacological inhibition of histone deacetylases (HDACs) on epigenetic regulations and gene expressions crucial for neuronal plasticity in the motor cortex. Brain Res 2020; 1751:147191. [PMID: 33152341 DOI: 10.1016/j.brainres.2020.147191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/21/2020] [Accepted: 10/28/2020] [Indexed: 01/12/2023]
Abstract
The objective of this study was to examine the effect of epigenetic treatment using an histone deacetylases (HDAC) inhibitor in addition to aerobic exercise on the epigenetic markers and neurotrophic gene expressions in the motor cortex, to find a more enriched brain pre-conditioning for motor learning in neurorehabilitation. ICR mice were divided into four groups based on two factors: HDAC inhibition and exercise. Intraperitoneal administration of an HDAC inhibitor (1.2 g/kg sodium butyrate, NaB) and treadmill exercise (approximately at 10 m/min for 60 min) were conducted five days a week for four weeks. NaB administration inhibited total HDAC activity and enhanced acetylation level of histones specifically in histone H4, accompanying the increase of transcription levels of immediate-early genes (IEGs) (c-fos and Arc) and neurotrophins (BDNF and NT-4) crucial for neuroplasticity in the motor cortex. However, exercise enhanced HDAC activity and acetylation level of histone H4 and H3 without the modification of transcription levels. In addition, there were no synergic effects between HDAC inhibition and the exercise regime on the gene expressions. This study showed that HDAC inhibition could present more enriched condition for neuroplasticity to the motor cortex. However, exercise-induced neurotrophic gene expressions could depend on exercise regimen based on the intensity, the term etc. Therefore, this study has a novelty suggesting that pharmacological HDAC inhibition could be an alternative potent approach to present a neuronal platform with enriched neuroplasticity for motor learning and motor recovery, however, an appropriate exercise regimen is expected in this approach.
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Affiliation(s)
- Hiroshi Maejima
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan.
| | - Mika Kitahara
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Yasuyuki Takamatsu
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Hiroki Mani
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Takahiro Inoue
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan; Research Fellow of Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
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50
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Zhang H, Ji L, Yang Y, Zhang X, Gang Y, Bai L. The Role of HDACs and HDACi in Cartilage and Osteoarthritis. Front Cell Dev Biol 2020; 8:560117. [PMID: 33102472 PMCID: PMC7554620 DOI: 10.3389/fcell.2020.560117] [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: 05/08/2020] [Accepted: 08/27/2020] [Indexed: 12/22/2022] Open
Abstract
Epigenetics plays an important role in the pathogenesis and treatment of osteoarthritis (OA). In recent decades, HDAC family members have been associated with OA. This paper aims to describe the different role of HDACs in the pathogenesis of OA through interaction with microRNAs and the regulation of relevant signaling pathways. We found that HDACs are involved in cartilage and chondrocyte development but also play a crucial role in OA. However, the distinct HDAC mechanism in the pathogenesis and treatment of OA require further investigation. Furthermore, HDAC inhibitors (HDACi) can protect cartilage from disease, which may represent a potential therapeutic approach against OA.
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Affiliation(s)
- He Zhang
- Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Lu Ji
- Department of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, Shenyang, China
| | - Yue Yang
- Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Xiaoning Zhang
- Department of Anesthesiology, Shengjing Hospital, China Medical University, Shenyang, China
| | - Yi Gang
- Department of Orthopedic Surgery, Panjin Central Hospital, Panjin, China
| | - Lunhao Bai
- Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China
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