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Maddox SA, Ponomareva OY, Zaleski CE, Chen MX, Vella KR, Hollenberg AN, Klengel C, Ressler KJ. Evidence for thyroid hormone regulation of amygdala-dependent fear-relevant memory and plasticity. Mol Psychiatry 2024:10.1038/s41380-024-02679-2. [PMID: 39039155 DOI: 10.1038/s41380-024-02679-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 07/08/2024] [Accepted: 07/16/2024] [Indexed: 07/24/2024]
Abstract
The amygdala is an established site for fear memory formation, and clinical studies suggest involvement of hormone signaling cascades in development of trauma-related disorders. While an association of thyroid hormone (TH) status and mood disorders is established, the related brain-based mechanisms and the role of TH in anxiety disorders are unknown. Here we examine the role that TH receptor (TR, a nuclear transcriptional repressor when unbound and a transcriptional activator when bound to TH) may have in mediating the initial formation of fear memories in the amygdala. We identified mRNA levels of TR and other TH pathway regulatory genes, including thyrotropin-releasing hormone (Trh), transthyretin (Ttr), thyrotropin-releasing hormone receptor (Trhr), type 2 iodothyronine deiodinase (Dio2), mediator complex subunit 12 (Med12/Trap230) and retinoid X receptor gamma (Rxrg) to be altered in the amygdala following Pavlovian fear conditioning. Using TH agonist and antagonist infusion into the amygdala, we demonstrated that this pathway is both necessary and sufficient for fear memory consolidation. Inhibition of TH signaling with the TR antagonist 1-850 decreased fear memory consolidation; while activation of TR with T3 (triiodothyronine) resulted in increased memory formation. Using a systemic hypothyroid mouse model, we found that intra-amygdala infusions of T3 were sufficient to rescue deficits in fear memory. Finally, we demonstrated that T3 was sufficient to activate TR-specific gene pathways in the amygdala. These findings on the role of activity-dependent TR modulation support a model in which local TH is a critical regulator of fear memory-related plasticity in the amygdala.
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Affiliation(s)
- Stephanie A Maddox
- Neurobiology of Fear Laboratory, Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Olga Y Ponomareva
- Neurobiology of Fear Laboratory, Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Cole E Zaleski
- Neurobiology of Fear Laboratory, Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
- Northeastern University, Boston, MA, USA
| | - Michelle X Chen
- Neurobiology of Fear Laboratory, Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
- University of Iowa, Iowa City, IA, USA
| | - Kristen R Vella
- Joan and Sanford I. Weill Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Weill Cornell Medicine, New York, NY, USA
- Weill Center for Metabolic Health, Weill Cornell Medicine, New York, NY, USA
| | - Anthony N Hollenberg
- Joan and Sanford I. Weill Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Weill Cornell Medicine, New York, NY, USA
- Weill Center for Metabolic Health, Weill Cornell Medicine, New York, NY, USA
| | - Claudia Klengel
- Neurobiology of Fear Laboratory, Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
| | - Kerry J Ressler
- Neurobiology of Fear Laboratory, Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA.
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA.
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2
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Li M, Yang XK, Yang J, Li TX, Cui C, Peng X, Lei J, Ren K, Ming J, Zhang P, Tian B. Ketamine ameliorates post-traumatic social avoidance by erasing the traumatic memory encoded in VTA-innervated BLA engram cells. Neuron 2024:S0896-6273(24)00461-6. [PMID: 39032491 DOI: 10.1016/j.neuron.2024.06.026] [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: 09/22/2023] [Revised: 04/21/2024] [Accepted: 06/26/2024] [Indexed: 07/23/2024]
Abstract
Erasing traumatic memory during memory reconsolidation is a promising retrieval-extinction strategy for post-traumatic stress disorder (PTSD). Here, we developed an acute social defeat stress (SDS) mouse model with short-term and re-exposure-evoked long-term social avoidance. SDS-associated traumatic memories were identified to be stored in basolateral amygdala (BLA) engram cells. A single intraperitoneal administration of subanesthetic-dose ketamine within, but not beyond, the re-exposure time window significantly alleviates SDS-induced social avoidance, which reduces the activity and quantity of reactivated BLA engram cells. Furthermore, activation or inhibition of dopaminergic projections from the ventral tegmental area to the BLA effectively mimics or blocks the therapeutic effect of re-exposure with ketamine and is dopamine D2 receptor dependent. Single-cell RNA sequencing reveals that re-exposure with ketamine triggered significant changes in memory-related pathways in the BLA. Together, our research advances the understanding of how ketamine mitigates PTSD symptoms and offers promising avenues for developing more effective treatments for trauma-related disorders.
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Affiliation(s)
- Ming Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xue-Ke Yang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jian Yang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Tong-Xia Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Chi Cui
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xiang Peng
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jie Lei
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Kun Ren
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jie Ming
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, Hubei 430022, P.R. China
| | - Pei Zhang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China; Institute for Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China; Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan, Hubei 430030, P.R. China.
| | - Bo Tian
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China; School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China; Institute for Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China; Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan, Hubei 430030, P.R. China.
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3
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Musazzi L, Mingardi J, Ieraci A, Barbon A, Popoli M. Stress, microRNAs, and stress-related psychiatric disorders: an overview. Mol Psychiatry 2023; 28:4977-4994. [PMID: 37391530 DOI: 10.1038/s41380-023-02139-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/23/2023] [Accepted: 06/16/2023] [Indexed: 07/02/2023]
Abstract
Stress is a major risk factor for psychiatric disorders. During and after exposure to stressors, the stress response may have pro- or maladaptive consequences, depending on several factors related to the individual response and nature of the stressor. However, the mechanisms mediating the long-term effects of exposure to stress, which may ultimately lead to the development of stress-related disorders, are still largely unknown. Epigenetic mechanisms have been shown to mediate the effects of the environment on brain gene expression and behavior. MicroRNAs, small non-coding RNAs estimated to control the expression of about 60% of all genes by post-transcriptional regulation, are a fundamental epigenetic mechanism. Many microRNAs are expressed in the brain, where they work as fine-tuners of gene expression, with a key role in the regulation of homeostatic balance, and a likely influence on pro- or maladaptive brain changes. Here we have selected a number of microRNAs, which have been strongly implicated as mediators of the effects of stress in the brain and in the development of stress-related psychiatric disorders. For all of them recent evidence is reported, obtained from rodent stress models, manipulation of microRNAs levels with related behavioral changes, and clinical studies of stress-related psychiatric disorders. Moreover, we have performed a bioinformatic analysis of the predicted brain-expressed target genes of the microRNAs discussed, and found a central role for mechanisms involved in the regulation of synaptic function. The complex regulatory role of microRNAs has suggested their use as biomarkers for diagnosis and treatment response, as well as possible therapeutic drugs. While, microRNA-based diagnostics have registered advancements, particularly in oncology and other fields, and many biotech companies have launched miRNA therapeutics in their development pipeline, the development of microRNA-based tests and drugs for brain disorders is comparatively slower.
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Affiliation(s)
- Laura Musazzi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Jessica Mingardi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Alessandro Ieraci
- Department of Theoretical and Applied Sciences, eCampus University, Novedrate, Italy
- Molecular Pharmacology, Cellular and Behavioral Physiology; Dipartimento di Scienze Farmaceutiche, Università Degli Studi di Milano, Milano, Italy
| | - Alessandro Barbon
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Maurizio Popoli
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmaceutiche, Università Degli Studi di Milano, Milano, Italy.
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4
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Huang G, Iqbal J, Shen D, Xue YX, Yang M, Jia X. MicroRNA expression profiles of stress susceptibility and resilience in the prelimbic and infralimbic cortex of rats after single prolonged stress. Front Psychiatry 2023; 14:1247714. [PMID: 37692297 PMCID: PMC10488707 DOI: 10.3389/fpsyt.2023.1247714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/07/2023] [Indexed: 09/12/2023] Open
Abstract
The experience of traumatic stress can engender lasting memories associated with the trauma, often resulting in post-traumatic stress disorder (PTSD). However, only a minority of individuals develop PTSD symptoms upon exposure. The neurobiological mechanisms underlying the pathology of PTSD are poorly understood. Utilizing a rat model of PTSD, the Single Prolonged Stress (SPS) paradigm, we were able to differentiate between resilient and susceptible individuals. Fourteen days after the SPS exposure, we conducted the behavioral analyses using Elevated Plus Maze (EPM) and Open Field (OF) tests to identify male rats as trauma resilient or susceptible. We focused on the microRNA (miRNA) profiles of the infralimbic (IL) and prelimbic (PL) cortical regions, known to be crucial in regulating the stress response. Our investigation of stressed rats exposed to the SPS procedure yielded divergent response, and differential expression microRNAs (DEmiRs) analysis indicated significant differences in the IL and PL transcriptional response. In the IL cortex, the GO analysis revealed enriched GO terms in the resilient versus control comparison, specifically related to mitogen-activated protein kinase and MAP kinase signaling pathways for their molecular functions as well as cytosol and nucleoplasm for the biological process. In the susceptible versus resilient comparison, the changes in molecular functions were only manifested in the functions of regulation of transcription involved in the G1/S transition of the mitotic cell cycle and skeletal muscle satellite cell activation. However, no enriched GO terms were found in the susceptible versus control comparison. In the PL cortex, results indicated that the DEmiRs were enriched exclusively in the cellular component level of the endoplasmic reticulum lumen in the comparison between resilient and control rats. Overall, our study utilized an animal model of PTSD to investigate the potential correlation between stress-induced behavioral dysfunction and variations in miRNA expression. The aforementioned discoveries have the potential to pave the way for novel therapeutic approaches for PTSD, which could involve the targeted regulation of transcriptome expression.
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Affiliation(s)
- Gengdi Huang
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, China
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
| | - Javed Iqbal
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, China
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
| | - Dan Shen
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China
| | - Yan-xue Xue
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Mei Yang
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
- Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, China
- Clinical College of Mental Health, ShenZhen University Health Science Center, Shenzhen, China
- School of Mental Health, Jining Medical University, Jining, China
- School of Mental Health, Anhui Medical University, Hefei, China
| | - Xiaojian Jia
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
- Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, China
- Clinical College of Mental Health, ShenZhen University Health Science Center, Shenzhen, China
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Ielpo D, Guzzo SM, Porcheddu GF, Viscomi MT, Catale C, Reverte I, Cabib S, Cifani C, Antonucci G, Ventura R, Lo Iacono L, Marchetti C, Andolina D. GABAergic miR-34a regulates Dorsal Raphè inhibitory transmission in response to aversive, but not rewarding, stimuli. Proc Natl Acad Sci U S A 2023; 120:e2301730120. [PMID: 37523544 PMCID: PMC10410731 DOI: 10.1073/pnas.2301730120] [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: 01/31/2023] [Accepted: 06/26/2023] [Indexed: 08/02/2023] Open
Abstract
The brain employs distinct circuitries to encode positive and negative valence stimuli, and dysfunctions of these neuronal circuits have a key role in the etiopathogenesis of many psychiatric disorders. The Dorsal Raphè Nucleus (DRN) is involved in various behaviors and drives the emotional response to rewarding and aversive experiences. Whether specific subpopulations of neurons within the DRN encode these behaviors with different valence is still unknown. Notably, microRNA expression in the mammalian brain is characterized by tissue and neuronal specificity, suggesting that it might play a role in cell and circuit functionality. However, this specificity has not been fully exploited. Here, we demonstrate that microRNA-34a (miR-34a) is selectively expressed in a subpopulation of GABAergic neurons of the ventrolateral DRN. Moreover, we report that acute exposure to both aversive (restraint stress) and rewarding (chocolate) stimuli reduces GABA release in the DRN, an effect prevented by the inactivation of DRN miR-34a or its genetic deletion in GABAergic neurons in aversive but not rewarding conditions. Finally, miR-34a inhibition selectively reduced passive coping with severe stressors. These data support a role of miR-34a in regulating GABAergic neurotransmitter activity and behavior in a context-dependent manner and suggest that microRNAs could represent a functional signature of specific neuronal subpopulations with valence-specific activity in the brain.
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Affiliation(s)
- Donald Ielpo
- Department of Psychology, Sapienza University, Rome00184, Italy
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
| | - Serafina M. Guzzo
- School of Pharmacy, Pharmacology Unit, University of Camerino, Camerino62032, Italy
| | - Giovanni F. Porcheddu
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
- European Brain Research Institute-Fondazione Rita Levi-Montalcini, Rome00161, Italy
| | - Maria Teresa Viscomi
- Department of Life Science and Public Health Section of Histology and Embryology, Università Cattolica del Sacro Cuore, Rome00168, Italy
- Fondazione Policlinico Universitario “A. Gemelli”, Istituto di Ricovero e Cura a Carattere Scientifico, Rome00168, Italy
| | - Clarissa Catale
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
| | - Ingrid Reverte
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
- Department of Physiology and Pharmacology, Sapienza University of Rome, Rome00185, Italy
| | - Simona Cabib
- Department of Psychology, Sapienza University, Rome00184, Italy
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
| | - Carlo Cifani
- School of Pharmacy, Pharmacology Unit, University of Camerino, Camerino62032, Italy
| | - Gabriella Antonucci
- Department of Psychology, Sapienza University, Rome00184, Italy
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
| | - Rossella Ventura
- Department of Psychology, Sapienza University, Rome00184, Italy
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
- San Raffaele Istituto di Ricovero e Cura a Carattere Scientifico, Rome00166, Italy
| | - Luisa Lo Iacono
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
| | - Cristina Marchetti
- European Brain Research Institute-Fondazione Rita Levi-Montalcini, Rome00161, Italy
- Institute of Molecular Biology and Pathology, National Research Council, Rome00185, Italy
| | - Diego Andolina
- Department of Psychology, Sapienza University, Rome00184, Italy
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, Roma00143, Italy
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6
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Zhou C, Peng S, Lin A, Jiang A, Peng Y, Gu T, Liu Z, Cheng Q, Zhang J, Luo P. Psychiatric disorders associated with immune checkpoint inhibitors: a pharmacovigilance analysis of the FDA Adverse Event Reporting System (FAERS) database. EClinicalMedicine 2023; 59:101967. [PMID: 37131541 PMCID: PMC10149185 DOI: 10.1016/j.eclinm.2023.101967] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 05/04/2023] Open
Abstract
Background With the increasing use of immune checkpoint inhibitors (ICIs) for tumour immunotherapy, the immune-related adverse events (irAEs) caused by their collateral effect on the immune system pose a key challenge for the clinical application of ICIs. Psychiatric adverse events are a class of adverse events associated with ICIs that are realistically observed in the real world. We aim to provide a comprehensive study and summary of psychiatric adverse events associated with ICIs. Methods We obtained ICI adverse reaction reports during January 2012-December 2021 from the FDA Adverse Event Reporting System (FAERS) database. ICI reports underwent screening to minimize the influence of other adverse reactions, concomitant medications, and indications for medication use that may also contribute to psychiatric disorders. Disproportionality analysis was performed to find psychiatric adverse events associated with ICIs by comparing ICIs with the full FAERS database using the reporting odds ratio (ROR). Influencing factors were explored based on univariate logistic regression analysis. Finally, the Cancer Genome Atlas (TCGA) pan-cancer transcriptome data were combined to explore the potential biological mechanisms associated with ICI-related pAEs. Findings Reports of psychiatric adverse events accounted for 2.71% of the overall ICI adverse event reports in the FAERS database. Five categories of psychiatric adverse events were defined as ICI-related psychiatric adverse events (pAEs). The median age of reports with ICI-related pAEs was 70 (interquartile range [IQR] 24-95), with 21.54% of reports having a fatal outcome. Cases with indications for lung cancer, skin cancer and kidney site cancer accounted for the majority. The odds of ICI-related pAEs increased in older patients (65-74: OR = 1.44 [1.22-1.70], P < 0.0001: ≥75: OR = 1.84 [1.54-2.20], P < 0.0001). The occurrence of ICI-related pAEs may be related to NOTCH signalling and dysregulation of synapse-associated pathways. Interpretation This study investigated psychiatric adverse events highly associated with ICI treatment, their influencing factors and potential biological mechanisms, which provides a reliable basis for further in-depth study of ICI-related pAEs. However, as an exploratory study, our findings need to be further confirmed in a large-scale prospective study. Funding This work was supported by the Natural Science Foundation of Guangdong Province (2018A030313846 and 2021A1515012593), the Science and Technology Planning Project of Guangdong Province (2019A030317020) and the National Natural Science Foundation of China (81802257, 81871859, 81772457, 82172750 and 82172811). Guangdong Basic and Applied Basic Research Foundation (Guangdong - Guangzhou Joint Fouds) (2022A1515111212). This work was supported by Key Research and Development Projects of Sichuan Science and Technology (2022YFS0221, 2022YFS0074, 2022YFS0156 and 2022YFS0378). Sichuan Provincial People's Hospital Hospital Young Talent Fund (2021QN08).
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Affiliation(s)
- Chaozheng Zhou
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Shengkun Peng
- Department of Radiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan Province, China
| | - Anqi Lin
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Aimin Jiang
- Department of Urology, Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Yuanxi Peng
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Tianqi Gu
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zaoqu Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Corresponding author. Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Jian Zhang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Corresponding author. Department of Oncology, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510282, Guangdong, China.
| | - Peng Luo
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Corresponding author. Department of Oncology, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510282, Guangdong, China.
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7
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Mucha M, Skrzypiec AE, Kolenchery JB, Brambilla V, Patel S, Labrador-Ramos A, Kudla L, Murrall K, Skene N, Dymicka-Piekarska V, Klejman A, Przewlocki R, Mosienko V, Pawlak R. miR-483-5p offsets functional and behavioural effects of stress in male mice through synapse-targeted repression of Pgap2 in the basolateral amygdala. Nat Commun 2023; 14:2134. [PMID: 37185241 PMCID: PMC10130081 DOI: 10.1038/s41467-023-37688-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 03/27/2023] [Indexed: 05/17/2023] Open
Abstract
Severe psychological trauma triggers genetic, biochemical and morphological changes in amygdala neurons, which underpin the development of stress-induced behavioural abnormalities, such as high levels of anxiety. miRNAs are small, non-coding RNA fragments that orchestrate complex neuronal responses by simultaneous transcriptional/translational repression of multiple target genes. Here we show that miR-483-5p in the amygdala of male mice counterbalances the structural, functional and behavioural consequences of stress to promote a reduction in anxiety-like behaviour. Upon stress, miR-483-5p is upregulated in the synaptic compartment of amygdala neurons and directly represses three stress-associated genes: Pgap2, Gpx3 and Macf1. Upregulation of miR-483-5p leads to selective contraction of distal parts of the dendritic arbour and conversion of immature filopodia into mature, mushroom-like dendritic spines. Consistent with its role in reducing the stress response, upregulation of miR-483-5p in the basolateral amygdala produces a reduction in anxiety-like behaviour. Stress-induced neuromorphological and behavioural effects of miR-483-5p can be recapitulated by shRNA mediated suppression of Pgap2 and prevented by simultaneous overexpression of miR-483-5p-resistant Pgap2. Our results demonstrate that miR-483-5p is sufficient to confer a reduction in anxiety-like behaviour and point to miR-483-5p-mediated repression of Pgap2 as a critical cellular event offsetting the functional and behavioural consequences of psychological stress.
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Affiliation(s)
- Mariusz Mucha
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK.
| | - Anna E Skrzypiec
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK
| | - Jaison B Kolenchery
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK
| | - Valentina Brambilla
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK
| | - Satyam Patel
- Pharmacy Department, Alberta Health Services, Calgary, AB, Canada
| | - Alberto Labrador-Ramos
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK
| | - Lucja Kudla
- Department of Molecular Neuropharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Kathryn Murrall
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK
| | - Nathan Skene
- UK Dementia Research Institute at Imperial College London, London, UK
- Department of Brain Sciences, Imperial College London, London, UK
| | | | - Agata Klejman
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warszawa, Poland
| | - Ryszard Przewlocki
- Department of Molecular Neuropharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Valentina Mosienko
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK.
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, Bristol, UK.
| | - Robert Pawlak
- University of Exeter Medical School, Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, UK
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8
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Sharma S, Ma W, Ressler KJ, Anderson T, Li DC, Jin P, Gourley SL, Qin Z. Dysregulation of Prefrontal Oligodendrocyte Lineage Cells Across Mouse Models of Adversity and Human Major Depressive Disorder Oligodendrocyte dysregulation in mouse models of stress and MDD. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.09.531989. [PMID: 36945653 PMCID: PMC10028961 DOI: 10.1101/2023.03.09.531989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Animal models of adversity have yielded few molecular mechanisms that translate to human stress-related diseases like major depressive disorder (MDD). We congruently analyze publicly available bulk-tissue transcriptomic data from prefrontal cortex (PFC) in multiple mouse models of adversity and in MDD. We apply strategies, to quantify cell-type specific enrichment from bulk-tissue transcriptomics, utilizing reference single cell RNA sequencing datasets. These analyses reveal conserved patterns of oligodendrocyte (OL) dysregulation across animal experiments, including susceptibility to social defeat, acute cocaine withdrawal, chronic unpredictable stress, early life stress, and adolescent social isolation. Using unbiased methodologies, we further identify a dysregulation of layer 6 neurons that associate with deficits in goal-directed behavior after social isolation. Human post-mortem brains with MDD show similar OL transcriptome changes in Brodmann Areas 8/9 in both male and female patients. This work assesses cell type involvement in an unbiased manner from differential expression analyses across animal models of adversity and human MDD and finds a common signature of OL dysfunction in the frontal cortex.
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Affiliation(s)
- Sumeet Sharma
- Department of Psychiatry and Behavioral Sciences, Emory University
| | - Wenjing Ma
- Department of Computer Science, Emory University
| | | | | | - Dan. C. Li
- Graduate Program in Neuroscience, Emory University
| | - Peng Jin
- Department of Human Genetics, Emory University
| | - Shannon L. Gourley
- Graduate Program in Neuroscience, Emory University
- Department of Pediatrics, Emory University School of Medicine; Yerkes National Primate Research Center
- Children’s Healthcare of Atlanta
| | - Zhaohui Qin
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University
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9
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Xu Y, Yu Z, Chen S, Li Z, Long X, Chen M, Lee CS, Peng HY, Lin TB, Hsieh MC, Lai CY, Chou D. (2R,6R)-hydroxynorketamine targeting the basolateral amygdala regulates fear memory. Neuropharmacology 2023; 225:109402. [PMID: 36565854 DOI: 10.1016/j.neuropharm.2022.109402] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 11/28/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
(2R,6R)-Hydroxynorketamine (HNK), a ketamine metabolite, has been proposed as an ideal next-generation antidepressant due to its rapid-acting and long-lasting antidepression-relevant actions. Interestingly, recent studies have shown that (2R,6R)-HNK may have diverse impacts on memory formation. However, its effect on fear memory extinction is still unknown. In the present study, we assessed the effects of (2R,6R)-HNK on synaptic transmission and plasticity in the basolateral amygdala (BLA) and explored its actions on auditory fear memory extinction. Adult male C57BL/6J mice were used in this study. The extracellular electrophysiological recording was conducted to assay synaptic transmission and plasticity. The auditory fear conditioning paradigm was performed to test fear extinction. The results showed that (2R,6R)-HNK at 30 mg/kg increased the number of c-fos-positive cells in the BLA. Moreover, (2R,6R)-HNK enhanced the induction and maintenance of long-term potentiation (LTP) in the BLA in a dose-dependent manner (at 1, 10, and 30 mg/kg). In addition, (2R,6R)-HNK at 30 mg/kg and directly slice perfusion of (2R,6R)-HNK enhanced BLA synaptic transmission. Furthermore, intra-BLA application and systemic administration of (2R,6R)-HNK reduced the retrieval of recent fear memory and decreased the retrieval of remote fear memory. Both local and systemic (2R,6R)-HNK also inhibited the spontaneous recovery of remote fear memory. Taken together, these results indicated that (2R,6R)-HNK could regulate BLA synaptic transmission and plasticity and act through the BLA to modulate fear memory. The results revealed that (2R,6R)-HNK may be a potential drug to treat posttraumatic stress disorder (PTSD) patients.
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Affiliation(s)
- Yuanyuan Xu
- Department of Pharmacology, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China.
| | - Zhenfei Yu
- Department of Pharmacology, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China.
| | - Si Chen
- Department of Human Anatomy and Histology & Embryology, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China.
| | - Zhenlong Li
- School of Basic Medical Sciences, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China.
| | - Xiting Long
- Department of Pharmacology, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China.
| | - Mengxu Chen
- Department of Pharmacology, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China.
| | - Chau-Shoun Lee
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan; Department of Psychiatry, MacKay Memorial Hospital, Taipei, Taiwan.
| | - Hsien-Yu Peng
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan.
| | - Tzer-Bin Lin
- Institute of New Drug Development, College of Medicine, China Medical University, Taichung, Taiwan; Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Ming-Chun Hsieh
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan.
| | - Cheng-Yuan Lai
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei, Taiwan.
| | - Dylan Chou
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan; Department of Physiology, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China.
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10
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MicroRNAs in Learning and Memory and Their Impact on Alzheimer’s Disease. Biomedicines 2022; 10:biomedicines10081856. [PMID: 36009403 PMCID: PMC9405363 DOI: 10.3390/biomedicines10081856] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 12/15/2022] Open
Abstract
Learning and memory formation rely on the precise spatiotemporal regulation of gene expression, such as microRNA (miRNA)-associated silencing, to fine-tune gene expression for the induction and maintenance of synaptic plasticity. Much progress has been made in presenting direct evidence of miRNA regulation in learning and memory. Here, we summarize studies that have manipulated miRNA expression using various approaches in rodents, with changes in cognitive performance. Some of these are involved in well-known mechanisms, such as the CREB-dependent signaling pathway, and some of their roles are in fear- and stress-related disorders, particularly cognitive impairment. We also summarize extensive studies on miRNAs correlated with pathogenic tau and amyloid-β that drive the processes of Alzheimer’s disease (AD). Although altered miRNA profiles in human patients with AD and in mouse models have been well studied, little is known about their clinical applications and therapeutics. Studies on miRNAs as biomarkers still show inconsistencies, and more challenges need to be confronted in standardizing blood-based biomarkers for use in AD.
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11
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Chen YL, Tong L, Chen Y, Fu CH, Peng JB, Ji LL. MiR-153 downregulation alleviates PTSD-like behaviors and reduces cell apoptosis by upregulating the Sigma-1 receptor in the hippocampus of rats exposed to single-prolonged stress. Exp Neurol 2022; 352:114034. [PMID: 35259352 DOI: 10.1016/j.expneurol.2022.114034] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 02/24/2022] [Accepted: 03/01/2022] [Indexed: 11/17/2022]
Abstract
Posttraumatic stress disorder (PTSD) is a psychiatric disorder that may lead to a series of changes in the central nervous system, including impaired synaptic plasticity, neuronal dendritic spine loss, enhanced apoptosis and increased inflammation. However, the specific mechanism of PTSD has not been studied clearly. In the present study, we found that the level of miR-153-3p in the hippocampus of rats exposed tosingle-prolonged stresss (SPS) was upregulated, but its downstream target σ-1R showed a significant decrease. The downregulation of miR-153 could alleviate the PTSD-like behaviors in the rats exposed to SPS, and this effect might be related to the upregulation of σ-1R and PSD95. Furthermore, anti-miR-153 could also increase the dendritic spine density and reduce cell apoptosis in the hippocampus of SPS rats. In addition, we showed that the mTOR signaling pathway might be involved in the regulation of σ-1R in the hippocampus of rats exposed to SPS. The results of this study indicated that miR-153 might alleviate PTSD-like behaviors by regulating cell morphology and reducing cell apoptosis in the hippocampus of rats exposed to SPS by targeting σ-1R, which might be related to the mTOR signaling pathway.
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Affiliation(s)
- Yu-Lu Chen
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Lei Tong
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Yao Chen
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Chang-Hai Fu
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Jun-Bo Peng
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, China.
| | - Li-Li Ji
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, China.
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12
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Long-term co-exposure DBP and BaP causes imbalance in liver macrophages polarization via activation of Notch signaling regulated by miR-34a-5p in rats. Chem Biol Interact 2022; 359:109919. [DOI: 10.1016/j.cbi.2022.109919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/25/2022] [Accepted: 03/30/2022] [Indexed: 11/23/2022]
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13
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Prelimbic cortex miR-34a contributes to (2R,6R)-hydroxynorketamine-mediated antidepressant-relevant actions. Neuropharmacology 2022; 208:108984. [DOI: 10.1016/j.neuropharm.2022.108984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/28/2022] [Accepted: 02/02/2022] [Indexed: 11/21/2022]
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14
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OUP accepted manuscript. Cereb Cortex 2022; 32:4763-4781. [DOI: 10.1093/cercor/bhab515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 11/13/2022] Open
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15
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Moradi Vastegani S, Alani B, Kharazmi K, Ardjmand A. MiR-33-5p Regulates CREB to Induce Morphine State-dependent Memory in Rats: Interaction with the µ Opioid Receptor. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2022; 11:150-167. [PMID: 37091037 PMCID: PMC10116354 DOI: 10.22088/ijmcm.bums.11.2.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 01/02/2023] [Accepted: 01/21/2023] [Indexed: 04/25/2023]
Abstract
The aim of the present study was to examine the hypothesis that miR-33-5p attenuates morphine state-dependent (StD) memory via the µ opioid receptor by regulating cyclic AMP response element-binding protein (CREB). The effects of post-training morphine and morphine StD memory and their interaction with pre-test naloxone were evaluated using a single-trial inhibitory avoidance paradigm. Then, the hippocampal miR-33-5p gene and pCREB/CREB protein expression profiles were evaluated using quantitative real-time PCR and western blotting, respectively. We found that while post-training morphine and morphine StD memory respectively up- and down-regulate the miR-33-5p expression profile in the hippocampus, the reverse results are true for the expression of pCREB/CREB. Pre-test naloxone antagonized the response. Overall, our findings suggest that the expression levels of miR-33-5p in the hippocampus set the basis for morphine StD memory with low miR-33-5p enabling state dependency. The mechanism is mediated via miR33-5p and CREB signaling with the interaction of the µ opioid receptor. This finding may be used as a potential strategy for ameliorating morphine-induced memory-related disorders.
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Affiliation(s)
- Sadegh Moradi Vastegani
- Institute for Basic Sciences, Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran.
| | - Behrang Alani
- Department of Applied Cell Sciences, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
| | - Khatereh Kharazmi
- Institute for Basic Sciences, Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran.
| | - Abolfazl Ardjmand
- Institute for Basic Sciences, Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran.
- Department of Physiology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
- Corresponding Author: Abolfazl Ardjmand Address: Institute for Basic Sciences, Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran. E-mail
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16
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Neurodevelopment regulators miR-137 and miR-34 family as biomarkers for early and adult onset schizophrenia. NPJ SCHIZOPHRENIA 2021; 7:35. [PMID: 34226568 PMCID: PMC8257739 DOI: 10.1038/s41537-021-00164-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Abstract
Early-onset schizophrenia (EOS) may have stronger familial aggregation and a more severe outcome than adult-onset schizophrenia (AOS). MicroRNA (miRNA) takes on dual roles as a genetic and epigenetic modulator, which may mediate the influence of genetic risk. Neurological soft signs (NSS) are neurological abnormalities that may be intermediate phenotypes or endophenotypes for schizophrenia. Our previous study found poorer performance on NSS tests from patients with EOS and their unaffected first-degree relatives. Thus, we aimed to identify a set of aberrant neurodevelopmental-related miRNAs that could serve as potential biomarkers for EOS or schizophrenia with NSS. This study included 215 schizophrenia patients (104 EOS and 111 AOS), 72 unaffected first-degree relatives, 31 patients with bipolar disorder, and 100 healthy controls. Differential expression analysis revealed that miR-137, miR-34b, and miR-34c were significantly up-regulated in patients with schizophrenia and their unaffected first-degree relatives compared to healthy controls. Receiver operating characteristic (ROC) analysis showed that the miR-137 expression signature could be used to discriminate between patients with EOS and healthy controls (AUC = 0.911). Additionally, miR-34b had the highest ability to discriminate between EOS and AOS (AUC = 0.810), which may indicate different aetiological pathways to disease onset. Moreover, miR-137 dysregulation was correlated with almost all NSS subscales (i.e., sensory integration, motor sequencing, etc.) and, when EOS patients with NSS, miR-137 expression discriminated these patients from healthy controls to a greater extent (AUC = 0.957). These findings support the potential for neurodevelopmental-related miRNAs to be used as indicators of vulnerability to EOS.
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Integration of peripheral transcriptomics, genomics, and interactomics following trauma identifies causal genes for symptoms of post-traumatic stress and major depression. Mol Psychiatry 2021; 26:3077-3092. [PMID: 33963278 DOI: 10.1038/s41380-021-01084-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 02/26/2021] [Accepted: 03/26/2021] [Indexed: 02/03/2023]
Abstract
Posttraumatic stress disorder (PTSD) is a debilitating syndrome with substantial morbidity and mortality that occurs in the aftermath of trauma. Symptoms of major depressive disorder (MDD) are also a frequent consequence of trauma exposure. Identifying novel risk markers in the immediate aftermath of trauma is a critical step for the identification of novel biological targets to understand mechanisms of pathophysiology and prevention, as well as the determination of patients most at risk who may benefit from immediate intervention. Our study utilizes a novel approach to computationally integrate blood-based transcriptomics, genomics, and interactomics to understand the development of risk vs. resilience in the months following trauma exposure. In a two-site longitudinal, observational prospective study, we assessed over 10,000 individuals and enrolled >700 subjects in the immediate aftermath of trauma (average 5.3 h post-trauma (range 0.5-12 h)) in the Grady Memorial Hospital (Atlanta) and Jackson Memorial Hospital (Miami) emergency departments. RNA expression data and 6-month follow-up data were available for 366 individuals, while genotype, transcriptome, and phenotype data were available for 297 patients. To maximize our power and understanding of genes and pathways that predict risk vs. resilience, we utilized a set-cover approach to capture fluctuations of gene expression of PTSD or depression-converting patients and non-converting trauma-exposed controls to find representative sets of disease-relevant dysregulated genes. We annotated such genes with their corresponding expression quantitative trait loci and applied a variant of a current flow algorithm to identify genes that potentially were causal for the observed dysregulation of disease genes involved in the development of depression and PTSD symptoms after trauma exposure. We obtained a final list of 11 driver causal genes related to MDD symptoms, 13 genes for PTSD symptoms, and 22 genes in PTSD and/or MDD. We observed that these individual or combined disorders shared ESR1, RUNX1, PPARA, and WWOX as driver causal genes, while other genes appeared to be causal driver in the PTSD only or MDD only cases. A number of these identified causal pathways have been previously implicated in the biology or genetics of PTSD and MDD, as well as in preclinical models of amygdala function and fear regulation. Our work provides a promising set of initial pathways that may underlie causal mechanisms in the development of PTSD or MDD in the aftermath of trauma.
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18
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Bellver-Sanchis A, Pallàs M, Griñán-Ferré C. The Contribution of Epigenetic Inheritance Processes on Age-Related Cognitive Decline and Alzheimer's Disease. EPIGENOMES 2021; 5:15. [PMID: 34968302 PMCID: PMC8594669 DOI: 10.3390/epigenomes5020015] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 12/15/2022] Open
Abstract
During the last years, epigenetic processes have emerged as important factors for many neurodegenerative diseases, such as Alzheimer's disease (AD). These complex diseases seem to have a heritable component; however, genome-wide association studies failed to identify the genetic loci involved in the etiology. So, how can these changes be transmitted from one generation to the next? Answering this question would allow us to understand how the environment can affect human populations for multiple generations and explain the high prevalence of neurodegenerative diseases, such as AD. This review pays particular attention to the relationship among epigenetics, cognition, and neurodegeneration across generations, deepening the understanding of the relevance of heritability in neurodegenerative diseases. We highlight some recent examples of EI induced by experiences, focusing on their contribution of processes in learning and memory to point out new targets for therapeutic interventions. Here, we first describe the prominent role of epigenetic factors in memory processing. Then, we briefly discuss aspects of EI. Additionally, we summarize evidence of how epigenetic marks inherited by experience and/or environmental stimuli contribute to cognitive status offspring since better knowledge of EI can provide clues in the appearance and development of age-related cognitive decline and AD.
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Affiliation(s)
| | | | - Christian Griñán-Ferré
- Pharmacology Section, Department of Pharmacology, Toxicology, and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, Institute of Neuroscience, University of Barcelona (NeuroUB), Av Joan XXIII 27-31, 08028 Barcelona, Spain; (A.B.-S.); (M.P.)
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19
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Dysregulation of miR-15a-5p, miR-497a-5p and miR-511-5p Is Associated with Modulation of BDNF and FKBP5 in Brain Areas of PTSD-Related Susceptible and Resilient Mice. Int J Mol Sci 2021; 22:ijms22105157. [PMID: 34068160 PMCID: PMC8153003 DOI: 10.3390/ijms22105157] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/06/2021] [Accepted: 05/10/2021] [Indexed: 12/21/2022] Open
Abstract
Post-traumatic stress disorder (PTSD) is a neuropsychiatric disorder occurring in susceptible individuals following a traumatic event. Understanding the mechanisms subserving trauma susceptibility/resilience is essential to develop new effective treatments. Increasing evidence suggests that non-coding RNAs, such as microRNAs (miRNAs), may play a prominent role in mediating trauma susceptibility/resilience. In this study, we evaluated the transcriptional expression of two key PTSD-related genes (FKBP5 and BDNF) and the relative targeting miRNAs (miR-15a-5p, miR-497a-5p, miR-511-5p, let-7d-5p) in brain areas of PTSD-related susceptible and resilient mice identified through our recently developed mouse model of PTSD (arousal-based individual screening (AIS) model). We observed lower transcript levels of miR-15a-5p, miR-497a-5p, and miR-511a-5p in the hippocampus and hypothalamus of susceptible mice compared to resilient mice, suggesting that the expression of these miRNAs could discriminate the two different phenotypes of stress-exposed mice. These miRNA variations could contribute, individually or synergically, to the inversely correlated transcript levels of FKBP5 and BDNF. Conversely, in the medial prefrontal cortex, downregulation of miR-15a-5p, miR-511-5p, and let-7d-5p was observed both in susceptible and resilient mice, and not accompanied by changes in their mRNA targets. Furthermore, miRNA expression in the different brain areas correlated to stress-induced behavioral scores (arousal score, avoidance-like score, social memory score and PTSD-like score), suggesting a linear connection between miRNA-based epigenetic modulation and stress-induced phenotypes. Pathway analysis of a miRNA network showed a statistically significant enrichment of molecular processes related to PTSD and stress. In conclusion, our results indicate that PTSD susceptibility/resilience might be shaped by brain-area-dependent modulation of miRNAs targeting FKBP5, BDNF, and other stress-related genes.
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20
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Taylor WW, Imhoff BR, Sathi ZS, Liu WY, Garza KM, Dias BG. Contributions of glucocorticoid receptors in cortical astrocytes to memory recall. Learn Mem 2021; 28:126-133. [PMID: 33723032 PMCID: PMC7970741 DOI: 10.1101/lm.053041.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/14/2021] [Indexed: 01/15/2023]
Abstract
Dysfunctions in memory recall lead to pathological fear; a hallmark of trauma-related disorders, like posttraumatic stress disorder (PTSD). Both, heightened recall of an association between a cue and trauma, as well as impoverished recall that a previously trauma-related cue is no longer a threat, result in a debilitating fear toward the cue. Glucocorticoid-mediated action via the glucocorticoid receptor (GR) influences memory recall. This literature has primarily focused on GRs expressed in neurons or ignored cell-type specific contributions. To ask how GR action in nonneuronal cells influences memory recall, we combined auditory fear conditioning in mice and the knockout of GRs in astrocytes in the prefrontal cortex (PFC), a brain region implicated in memory recall. We found that knocking out GRs in astrocytes of the PFC disrupted memory recall. Specifically, we found that knocking out GRs in astrocytes in the PFC (AstroGRKO) after fear conditioning resulted in higher levels of freezing to the CS+ tone when compared with controls (AstroGRintact). While we did not find any differences in extinction of fear toward the CS+ between these groups, AstroGRKO female but not male mice showed impaired recall of extinction training. These results suggest that GRs in cortical astrocytes contribute to memory recall. These data demonstrate the need to examine GR action in cortical astrocytes to elucidate the basic neurobiology underlying memory recall and potential mechanisms that underlie female-specific biases in the incidence of PTSD.
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Affiliation(s)
- William W Taylor
- Neuroscience Graduate Program, Emory University, Atlanta, Georgia 30322, USA
- Neuroscience Graduate Program, University of Southern California, Los Angeles, California 90007, USA
- Developmental Neuroscience and Neurogenetics Program, Division of Research on Children, Youth, and Families, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California 90027, USA
| | - Barry R Imhoff
- Division of Behavioral Neuroscience and Psychiatric Disorders, Yerkes National Primate Research Center, Atlanta, Georgia 30322, USA
| | - Zakia Sultana Sathi
- Division of Behavioral Neuroscience and Psychiatric Disorders, Yerkes National Primate Research Center, Atlanta, Georgia 30322, USA
| | - Wei Y Liu
- Developmental Neuroscience and Neurogenetics Program, Division of Research on Children, Youth, and Families, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California 90027, USA
| | - Kristie M Garza
- Neuroscience Graduate Program, Emory University, Atlanta, Georgia 30322, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30322, USA
| | - Brian G Dias
- Neuroscience Graduate Program, Emory University, Atlanta, Georgia 30322, USA
- Neuroscience Graduate Program, University of Southern California, Los Angeles, California 90007, USA
- Developmental Neuroscience and Neurogenetics Program, Division of Research on Children, Youth, and Families, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California 90027, USA
- Division of Behavioral Neuroscience and Psychiatric Disorders, Yerkes National Primate Research Center, Atlanta, Georgia 30322, USA
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, USA
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California 90027, USA
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21
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Cannabidiol as a Potential Treatment for Anxiety and Mood Disorders: Molecular Targets and Epigenetic Insights from Preclinical Research. Int J Mol Sci 2021; 22:ijms22041863. [PMID: 33668469 PMCID: PMC7917759 DOI: 10.3390/ijms22041863] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 02/08/2023] Open
Abstract
Cannabidiol (CBD) is the most abundant non-psychoactive component of cannabis; it displays a very low affinity for cannabinoid receptors, facilitates endocannabinoid signaling by inhibiting the hydrolysis of anandamide, and stimulates both transient receptor potential vanilloid 1 and 2 and serotonin type 1A receptors. Since CBD interacts with a wide variety of molecular targets in the brain, its therapeutic potential has been investigated in a number of neuropsychiatric diseases, including anxiety and mood disorders. Specifically, CBD has received growing attention due to its anxiolytic and antidepressant properties. As a consequence, and given its safety profile, CBD is considered a promising new agent in the treatment of anxiety and mood disorders. However, the exact molecular mechanism of action of CBD still remains unknown. In the present preclinical review, we provide a summary of animal-based studies that support the use of CBD as an anxiolytic- and antidepressant-like compound. Next, we describe neuropharmacological evidence that links the molecular pharmacology of CBD to its behavioral effects. Finally, by taking into consideration the effects of CBD on DNA methylation, histone modifications, and microRNAs, we elaborate on the putative role of epigenetic mechanisms in mediating CBD’s therapeutic outcomes.
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22
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Segaran RC, Chan LY, Wang H, Sethi G, Tang FR. Neuronal Development-Related miRNAs as Biomarkers for Alzheimer's Disease, Depression, Schizophrenia and Ionizing Radiation Exposure. Curr Med Chem 2021; 28:19-52. [PMID: 31965936 DOI: 10.2174/0929867327666200121122910] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/30/2019] [Accepted: 10/22/2019] [Indexed: 11/22/2022]
Abstract
Radiation exposure may induce Alzheimer's disease (AD), depression or schizophrenia. A number of experimental and clinical studies suggest the involvement of miRNA in the development of these diseases, and also in the neuropathological changes after brain radiation exposure. The current literature review indicated the involvement of 65 miRNAs in neuronal development in the brain. In the brain tissue, blood, or cerebral spinal fluid (CSF), 11, 55, or 28 miRNAs are involved in the development of AD respectively, 89, 50, 19 miRNAs in depression, and 102, 35, 8 miRNAs in schizophrenia. We compared miRNAs regulating neuronal development to those involved in the genesis of AD, depression and schizophrenia and also those driving radiation-induced brain neuropathological changes by reviewing the available data. We found that 3, 11, or 8 neuronal developmentrelated miRNAs from the brain tissue, 13, 16 or 14 miRNAs from the blood of patient with AD, depression and schizophrenia respectively were also involved in radiation-induced brain pathological changes, suggesting a possibly specific involvement of these miRNAs in radiation-induced development of AD, depression and schizophrenia respectively. On the other hand, we noted that radiationinduced changes of two miRNAs, i.e., miR-132, miR-29 in the brain tissue, three miRNAs, i.e., miR- 29c-5p, miR-106b-5p, miR-34a-5p in the blood were also involved in the development of AD, depression and schizophrenia, thereby suggesting that these miRNAs may be involved in the common brain neuropathological changes, such as impairment of neurogenesis and reduced learning memory ability observed in these three diseases and also after radiation exposure.
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Affiliation(s)
- Renu Chandra Segaran
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Li Yun Chan
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Hong Wang
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Feng Ru Tang
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
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Zaidan H, Galiani D, Gaisler-Salomon I. Pre-reproductive stress in adolescent female rats alters oocyte microRNA expression and offspring phenotypes: pharmacological interventions and putative mechanisms. Transl Psychiatry 2021; 11:113. [PMID: 33547270 PMCID: PMC7865076 DOI: 10.1038/s41398-021-01220-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 12/23/2020] [Accepted: 01/11/2021] [Indexed: 12/31/2022] Open
Abstract
Pre-reproductive stress (PRS) to adolescent female rats alters anxiogenic behavior in first (F1)- and second-generation (F2) offspring and increases mRNA expression of corticotropin-releasing factor receptor type 1 (Crhr1) in oocytes and in neonate offspring brain. Here, we ask whether the expression of Crhr1 and Crhr1-targeting microRNA is altered in brain, blood, and oocytes of exposed females and in the brain of their neonate and adult F1 and F2 offspring. In addition, we inquire whether maternal post-stress drug treatment reverses PRS-induced abnormalities in offspring. We find that PRS induces a selective increase in Crhr1-targeting mir-34a and mir-34c in blood and oocytes, while non-Crhr1 microRNA molecules remain unaltered. PRS induces similar microRNA changes in prefrontal cortex of F1 and F2 neonates. In adult animals, cortical Crhr1, but not mir-34, expression is affected by both maternal and direct stress exposure. Post-PRS fluoxetine (FLX) treatment increases pup mortality, and both FLX and the Crhr1 antagonist NBI 27914 reverse some of the effects of PRS and also have independent effects on F1 behavior and gene expression. PRS also alters behavior as well as gene and miRNA expression patterns in paternally derived F2 offspring, producing effects that are different from those previously found in maternally derived F2 offspring. These findings extend current knowledge on inter- and trans-generational transfer of stress effects, point to microRNA changes in stress-exposed oocytes as a potential mechanism, and highlight the consequences of post-stress pharmacological interventions in adolescence.
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Affiliation(s)
- Hiba Zaidan
- grid.18098.380000 0004 1937 0562School of Psychological Sciences and the Integrated Brain and Behavior Research Center, University of Haifa, Haifa, Israel
| | - Dalia Galiani
- grid.13992.300000 0004 0604 7563Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Inna Gaisler-Salomon
- School of Psychological Sciences and the Integrated Brain and Behavior Research Center, University of Haifa, Haifa, Israel.
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24
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Limbic Neuropeptidergic Modulators of Emotion and Their Therapeutic Potential for Anxiety and Post-Traumatic Stress Disorder. J Neurosci 2021; 41:901-910. [PMID: 33472824 DOI: 10.1523/jneurosci.1647-20.2020] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 11/06/2020] [Accepted: 11/11/2020] [Indexed: 12/20/2022] Open
Abstract
Post-traumatic stress disorder (PTSD) is characterized by hypervigilance, increased reactivity to unpredictable versus predictable threat signals, deficits in fear extinction, and an inability to discriminate between threat and safety. First-line pharmacotherapies for psychiatric disorders have limited therapeutic efficacy in PTSD. However, recent studies have advanced our understanding of the roles of several limbic neuropeptides in the regulation of defensive behaviors and in the neural processes that are disrupted in PTSD. For example, preclinical studies have shown that blockers of tachykinin pathways, such as the Tac2 pathway, attenuate fear memory consolidation in mice and thus might have unique potential as early post-trauma interventions to prevent PTSD development. Targeting this pathway might also be beneficial in regulating other symptoms of PTSD, including trauma-induced aggressive behavior. In addition, preclinical and clinical studies have shown the important role of angiotensin receptors in fear extinction and the promise of using angiotensin II receptor blockade to reduce PTSD symptom severity. Additional preclinical studies have demonstrated that the oxytocin receptors foster accurate fear discrimination by facilitating fear responses to predictable versus unpredictable threats. Complementary human imaging studies demonstrate unique neural targets of intranasal oxytocin and compare its efficacy with well-established anxiolytic treatments. Finally, promising data from human subjects have demonstrated that a selective vasopressin 1A receptor antagonist reduces anxiety induced by unpredictable threats. This review highlights these novel promising targets for the treatment of unique core elements of PTSD pathophysiology.
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MicroRNA-19b predicts widespread pain and posttraumatic stress symptom risk in a sex-dependent manner following trauma exposure. Pain 2021; 161:47-60. [PMID: 31569141 DOI: 10.1097/j.pain.0000000000001709] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Posttraumatic widespread pain (PTWP) and posttraumatic stress symptoms (PTSS) are frequent comorbid sequelae of trauma that occur at different rates in women and men. We sought to identify microRNA (miRNA) that may contribute to sex-dependent differences in vulnerability to these outcomes. Monte Carlo simulations (x10,000) identified miRNA in which predicted targeting of PTWP or PTSS genes was most enriched. Expression of the leading candidate miRNA to target PTWP/PTSS-related genes, miR-19b, has been shown to be influenced by estrogen and stress exposure. We evaluated whether peritraumatic miR-19b blood expression levels predicted PTWP and PTSS development in women and men experiencing trauma of motor vehicle collision (n = 179) and in women experiencing sexual assault trauma (n = 74). A sex-dependent relationship was observed between miR-19b expression levels and both PTWP (β = -2.41, P = 0.034) and PTSS (β = -3.01, P = 0.008) development 6 months after motor vehicle collision. The relationship between miR-19b and PTSS (but not PTWP) was validated in sexual assault survivors (β = -0.91, P = 0.013). Sex-dependent expression of miR-19b was also observed in blood and nervous tissue from 2 relevant animal models. Furthermore, in support of increasing evidence indicating a role for the circadian rhythm (CR) in PTWP and PTSS pathogenesis, miR-19b targets were enriched in CR gene transcripts. Human cohort and in vitro analyses assessing miR-19b regulation of key CR transcripts, CLOCK and RORA, supported the potential importance of miR-19b to regulating the CR pathway. Together, these results highlight the potential role that sex-dependent expression of miR-19b might play in PTWP and PTSS development after trauma/stress exposure.
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Grinkevich LN. The role of microRNAs in learning and long-term memory. Vavilovskii Zhurnal Genet Selektsii 2020; 24:885-896. [PMID: 35088002 PMCID: PMC8763713 DOI: 10.18699/vj20.687] [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: 07/02/2020] [Revised: 10/11/2020] [Accepted: 10/15/2020] [Indexed: 01/10/2023] Open
Abstract
The mechanisms of long-term memory formation and ways to improve it (in the case of its impairment) remain an extremely difficult problem yet to be solved. Over the recent years, much attention has been
paid to microRNAs in this regard. MicroRNAs are unique endogenous non-coding RNAs about 22 nucleotides in
length; each can regulate translation of hundreds of messenger RNA targets, thereby controlling entire gene networks. MicroRNAs are widely represented in the central nervous system. A large number of studies are currently
being conducted to investigate the role of microRNAs in the brain functioning. A number of microRNAs have
been shown to be involved in the process of synaptic plasticity, as well as in the long-term memory formation.
Disruption of microRNA biogenesis leads to significant cognitive dysfunctions. Moreover, impaired microRNA
biogenesis is one of the causes of the pathogenesis of mental disorders, neurodegenerative illnesses and senile
dementia, which are often accompanied by deterioration in the learning ability and by memory impairment.
Optimistic predictions are made that microRNAs can be used as targets for therapeutic treatment and for diagnosing the above pathologies. The importance of applications related to microRNAs significantly raises interest
in studying their functions in the brain. Thus, this review is focused on the role of microRNAs in cognitive processes. It describes microRNA biogenesis and the role of miRNAs in the regulation of gene expression, as well
as the latest achievements in studying the functional role of microRNAs in learning and in long-term memory
formation, depending on the activation or inhibition of their expression. The review presents summarized data
on the effect of impaired microRNA biogenesis on long-term memory formation, including those associated with
sleep deprivation. In addition, analysis is provided of the current literature related to the prospects of improving
cognitive processes by influencing microRNA biogenesis via the use of CRISPR/Cas9 technologies and active
mental and physical exercises.
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Affiliation(s)
- L. N. Grinkevich
- Pavlov Institute of Physiology of the Russian Academy of Sciences
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27
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Harris T, Bugescu R, Kelly J, Makela A, Sotzen M, Sisk C, Atkin G, Pratt R, Crockett E, Leinninger G. DLK1 Expressed in Mouse Orexin Neurons Modulates Anxio-Depressive Behavior but Not Energy Balance. Brain Sci 2020; 10:brainsci10120975. [PMID: 33322758 PMCID: PMC7764426 DOI: 10.3390/brainsci10120975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 11/16/2022] Open
Abstract
Lateral hypothalamic area (LHA) neurons expressing the neuropeptide orexin (OX) are implicated in obesity and anxio-depression. However, these neurons release OX as well as a host of other proteins that might contribute to normal physiology and disease states. We hypothesized that delta-like homolog 1 (DLK1), a protein reported to be co-expressed by all OX neurons, contributes to the regulation of energy balance and/or anxio-depression. Consistent with previous reports, we found that all rat OX neurons co-express DLK1. Yet, in mice and humans only a subset of OX neurons co-expressed DLK1. Since human OX-DLK1 distribution is more similar to mice than rats, mice are a comparable model to assess the human physiologic role of DLK1. We therefore used a viral lesion strategy to selectively delete DLK1 within the LHA of adult mice (DLK1Null) to reveal its role in body weight and behavior. Adult-onset DLK1 deletion had no impact on body weight or ingestive behavior. However, DLK1Null mice engaged in more locomotor activity than control mice and had decreased anxiety and depression measured via the elevated plus maze and forced swim tests. These data suggest that DLK1 expression via DLK1-expressing OX neurons primarily contributes to anxio-depression behaviors without impacting body weight.
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Affiliation(s)
- Tatiyana Harris
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA; (T.H.); (R.B.); (J.K.); (A.M.); (M.S.)
| | - Raluca Bugescu
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA; (T.H.); (R.B.); (J.K.); (A.M.); (M.S.)
| | - Jaylyn Kelly
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA; (T.H.); (R.B.); (J.K.); (A.M.); (M.S.)
| | - Anna Makela
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA; (T.H.); (R.B.); (J.K.); (A.M.); (M.S.)
| | - Morgan Sotzen
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA; (T.H.); (R.B.); (J.K.); (A.M.); (M.S.)
| | - Cheryl Sisk
- Neuroscience Program, Department of Psychology, Michigan State University, East Lansing, MI 48824, USA;
| | - Graham Atkin
- Department of Radiology, Michigan State University, East Lansing, MI 48824, USA;
| | - Rebecca Pratt
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA;
| | - Elahé Crockett
- Department of Medicine, Michigan State University, East Lansing, MI 48824, USA;
| | - Gina Leinninger
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA; (T.H.); (R.B.); (J.K.); (A.M.); (M.S.)
- Correspondence:
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28
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Grossi I, Radeghieri A, Paolini L, Porrini V, Pilotto A, Padovani A, Marengoni A, Barbon A, Bellucci A, Pizzi M, Salvi A, De Petro G. MicroRNA‑34a‑5p expression in the plasma and in its extracellular vesicle fractions in subjects with Parkinson's disease: An exploratory study. Int J Mol Med 2020; 47:533-546. [PMID: 33416118 PMCID: PMC7797475 DOI: 10.3892/ijmm.2020.4806] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/09/2020] [Indexed: 02/07/2023] Open
Abstract
Parkinson's disease (PD) is an important disabling age-related disorder and is the second most common neuro-degenerative disease. Currently, no established molecular biomarkers exist for the early diagnosis of PD. Circulating microRNAs (miRNAs), either vesicle-free or encapsulated in extracellular vesicles (EVs), have emerged as potential blood-based biomarkers also for neurodegenerative diseases. In this exploratory study, we focused on miR-34a-5p because of its well-documented involvement in neurobiology. To explore a differential profile of circulating miR-34a-5p in PD, PD patients and age-matched control subjects were enrolled. Serial ultracentrifugation steps and density gradient were used to separate EV subpopulations from plasma according to their different sedimentation properties (Large, Medium, Small EVs). Characterization of EV types was performed using western blotting and atomic force microscopy (AFM); purity from protein contaminants was checked with the colorimetric nanoplasmonic assay. Circulating miR-34a-5p levels were evaluated using qPCR in plasma and in each EV type. miR-34a-5p was significantly up-regulated in small EVs devoid of exogenous protein contaminants (pure SEVs) from PD patients and ROC analysis indicated a good diagnostic performance in discriminating patients from controls (AUC=0.74, P<0.05). Moreover, miR-34a-5p levels in pure SEVs were associated with disease duration, Hoehn and Yahr and Beck Depression Inventory scores. These results under-line the necessity to examine the miRNA content of each EV subpopulation to identify miRNA candidates with potential diagnostic value and lay the basis for future studies to validate the overexpression of circulating miR-34a-5p in PD via the use of pure SEVs.
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Affiliation(s)
- Ilaria Grossi
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Annalisa Radeghieri
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Lucia Paolini
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Vanessa Porrini
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Andrea Pilotto
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, I‑25123 Brescia, Italy
| | - Alessandro Padovani
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, I‑25123 Brescia, Italy
| | - Alessandra Marengoni
- General Medicine and Geriatrics Unit, Department of Clinical and Experimental Sciences, University of Brescia, I‑25123 Brescia, Italy
| | - Alessandro Barbon
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Arianna Bellucci
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Marina Pizzi
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Alessandro Salvi
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Giuseppina De Petro
- Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
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29
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Li M, Chen WD, Wang YD. The roles of the gut microbiota-miRNA interaction in the host pathophysiology. Mol Med 2020; 26:101. [PMID: 33160314 PMCID: PMC7648389 DOI: 10.1186/s10020-020-00234-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/26/2020] [Indexed: 12/20/2022] Open
Abstract
The gut microbiota regulates the biological processes of organisms acting like ‘another’ genome, affecting the health and disease of the host. MicroRNAs, as important physiological regulators, have been found to be involved in health and disease. Recently, the gut microbiota has been reported to affect host health by regulating host miRNAs. For example, Fusobacterium nucleatum could aggravate chemoresistance of colorectal cancer by decreasing the expression of miR-18a* and miR-4802. What’s more, miRNAs can shape the gut microbiota composition, ultimately affecting the host's physiology and disease. miR-515-5p and miR-1226-5p could promote the growth of Fusobacterium nucleatum (Fn) and Escherichia coli (E.coli), which have been reported to drive colorectal cancer. Here, we will review current findings of the interactions between the gut microbiota and microRNAs and discuss how the gut microbiota–microRNA interactions affect host pathophysiology including intestinal, neurological, cardiovascular, and immune health and diseases.
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Affiliation(s)
- Meihong Li
- State Key Laboratory of Chemical Resource Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, People's Republic of China
| | - Wei-Dong Chen
- Key Laboratory of Molecular Pathology, School of Basic Medical Science, Inner Mongolia Medical University, Hohhot, Inner Mongolia, People's Republic of China. .,Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, The People's Hospital of Hebi, School of Medicine, Henan University, Henan, People's Republic of China.
| | - Yan-Dong Wang
- State Key Laboratory of Chemical Resource Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, People's Republic of China.
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30
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Arzate-Mejía RG, Lottenbach Z, Schindler V, Jawaid A, Mansuy IM. Long-Term Impact of Social Isolation and Molecular Underpinnings. Front Genet 2020; 11:589621. [PMID: 33193727 PMCID: PMC7649797 DOI: 10.3389/fgene.2020.589621] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 09/28/2020] [Indexed: 11/17/2022] Open
Abstract
Prolonged periods of social isolation can have detrimental effects on the physiology and behavior of exposed individuals in humans and animal models. This involves complex molecular mechanisms across tissues in the body which remain partly identified. This review discusses the biology of social isolation and describes the acute and lasting effects of prolonged periods of social isolation with a focus on the molecular events leading to behavioral alterations. We highlight the role of epigenetic mechanisms and non-coding RNA in the control of gene expression as a response to social isolation, and the consequences for behavior. Considering the use of strict quarantine during epidemics, like currently with COVID-19, we provide a cautionary tale on the indiscriminate implementation of such form of social isolation and its potential damaging and lasting effects in mental health.
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Affiliation(s)
- Rodrigo G Arzate-Mejía
- Laboratory of Neuroepigenetics, Medical Faculty of the University of Zurich and Department of Health Science and Technology of the Swiss Federal Institute of Technology, Neuroscience Center Zurich, Zurich, Switzerland
| | | | | | - Ali Jawaid
- Laboratory of Neuroepigenetics, Medical Faculty of the University of Zurich and Department of Health Science and Technology of the Swiss Federal Institute of Technology, Neuroscience Center Zurich, Zurich, Switzerland
| | - Isabelle M Mansuy
- Laboratory of Neuroepigenetics, Medical Faculty of the University of Zurich and Department of Health Science and Technology of the Swiss Federal Institute of Technology, Neuroscience Center Zurich, Zurich, Switzerland
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31
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Hou X, Rong C, Wang F, Liu X, Sun Y, Zhang HT. GABAergic System in Stress: Implications of GABAergic Neuron Subpopulations and the Gut-Vagus-Brain Pathway. Neural Plast 2020; 2020:8858415. [PMID: 32802040 PMCID: PMC7416252 DOI: 10.1155/2020/8858415] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 02/07/2023] Open
Abstract
Stress can cause a variety of central nervous system disorders, which are critically mediated by the γ-aminobutyric acid (GABA) system in various brain structures. GABAergic neurons have different subsets, some of which coexpress certain neuropeptides that can be found in the digestive system. Accumulating evidence demonstrates that the gut-brain axis, which is primarily regulated by the vagus nerve, is involved in stress, suggesting a communication between the "gut-vagus-brain" pathway and the GABAergic neuronal system. Here, we first summarize the evidence that the GABAergic system plays an essential role in stress responses. In addition, we review the effects of stress on different brain regions and GABAergic neuron subpopulations, including somatostatin, parvalbumin, ionotropic serotonin receptor 5-HT3a, cholecystokinin, neuropeptide Y, and vasoactive intestinal peptide, with regard to signaling events, behavioral changes, and pathobiology of neuropsychiatric diseases. Finally, we discuss the gut-brain bidirectional communications and the connection of the GABAergic system and the gut-vagus-brain pathway.
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Affiliation(s)
- Xueqin Hou
- Institute of Pharmacology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong 271016, China
| | - Cuiping Rong
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China
| | - Fugang Wang
- Institute of Pharmacology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong 271016, China
| | - Xiaoqian Liu
- Institute of Pharmacology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong 271016, China
| | - Yi Sun
- Institute of Pharmacology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong 271016, China
| | - Han-Ting Zhang
- Departments of Neuroscience and Behavioral Medicine & Psychiatry, The Rockefeller Neurosciences Institute, West Virginia University Health Sciences Center, Morgantown, WV 26506, USA
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32
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Salazar JL, Yang SA, Yamamoto S. Post-Developmental Roles of Notch Signaling in the Nervous System. Biomolecules 2020; 10:biom10070985. [PMID: 32630239 PMCID: PMC7408554 DOI: 10.3390/biom10070985] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 12/14/2022] Open
Abstract
Since its discovery in Drosophila, the Notch signaling pathway has been studied in numerous developmental contexts in diverse multicellular organisms. The role of Notch signaling in nervous system development has been extensively investigated by numerous scientists, partially because many of the core Notch signaling components were initially identified through their dramatic ‘neurogenic’ phenotype of developing fruit fly embryos. Components of the Notch signaling pathway continue to be expressed in mature neurons and glia cells, which is suggestive of a role in the post-developmental nervous system. The Notch pathway has been, so far, implicated in learning and memory, social behavior, addiction, and other complex behaviors using genetic model organisms including Drosophila and mice. Additionally, Notch signaling has been shown to play a modulatory role in several neurodegenerative disease model animals and in mediating neural toxicity of several environmental factors. In this paper, we summarize the knowledge pertaining to the post-developmental roles of Notch signaling in the nervous system with a focus on discoveries made using the fruit fly as a model system as well as relevant studies in C elegans, mouse, rat, and cellular models. Since components of this pathway have been implicated in the pathogenesis of numerous psychiatric and neurodegenerative disorders in human, understanding the role of Notch signaling in the mature brain using model organisms will likely provide novel insights into the mechanisms underlying these diseases.
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Affiliation(s)
- Jose L. Salazar
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.L.S.); (S.-A.Y.)
| | - Sheng-An Yang
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.L.S.); (S.-A.Y.)
| | - Shinya Yamamoto
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.L.S.); (S.-A.Y.)
- Department of Neuroscience, BCM, Houston, TX 77030, USA
- Program in Developmental Biology, BCM, Houston, TX 77030, USA
- Development, Disease Models & Therapeutics Graduate Program, BCM, Houston, TX 77030, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-832-824-8119
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33
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Sillivan SE, Jamieson S, de Nijs L, Jones M, Snijders C, Klengel T, Joseph NF, Krauskopf J, Kleinjans J, Vinkers CH, Boks MP, Geuze E, Vermetten E, Berretta S, Ressler KJ, Rutten BP, Rumbaugh G, Miller CA. MicroRNA regulation of persistent stress-enhanced memory. Mol Psychiatry 2020; 25:965-976. [PMID: 31142820 PMCID: PMC6883139 DOI: 10.1038/s41380-019-0432-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/04/2019] [Accepted: 04/11/2019] [Indexed: 12/28/2022]
Abstract
Disruption of persistent, stress-associated memories is relevant for treating posttraumatic stress disorder (PTSD) and related syndromes, which develop in a subset of individuals following a traumatic event. We previously developed a stress-enhanced fear learning (SEFL) paradigm in inbred mice that produces PTSD-like characteristics in a subset of mice, including persistently enhanced memory and heightened cFos in the basolateral amygdala complex (BLC) with retrieval of the remote (30-day-old) stress memory. Here, the contribution of BLC microRNAs (miRNAs) to stress-enhanced memory was investigated because of the molecular complexity they achieve through their ability to regulate multiple targets simultaneously. We performed small-RNA sequencing (smRNA-Seq) and quantitative proteomics on BLC tissue collected from mice 1 month after SEFL and identified persistently changed microRNAs, including mir-135b-5p, and proteins associated with PTSD-like heightened fear expression. Viral-mediated overexpression of mir-135b-5p in the BLC of stress-resilient animals enhanced remote fear memory expression and promoted spontaneous renewal 14 days after extinction. Conversely, inhibition of BLC mir-135b-5p in stress-susceptible animals had the opposite effect, promoting a resilient-like phenotype. mir-135b-5p is highly conserved across mammals and was detected in post mortem human amygdala, as well as human serum samples. The mir-135b passenger strand, mir-135b-3p, was significantly elevated in serum from PTSD military veterans, relative to combat-exposed control subjects. Thus, miR-135b-5p may be an important therapeutic target for dampening persistent, stress-enhanced memory and its passenger strand a potential biomarker for responsivity to a mir-135-based therapeutic.
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Affiliation(s)
- Stephanie E. Sillivan
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL USA,Department of Neuroscience, The Scripps Research Institute, Jupiter, FL USA
| | - Sarah Jamieson
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL USA,Department of Neuroscience, The Scripps Research Institute, Jupiter, FL USA
| | - Laurence de Nijs
- School for Mental Health and Neuroscience, Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
| | - Meghan Jones
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL USA,Department of Neuroscience, The Scripps Research Institute, Jupiter, FL USA
| | - Clara Snijders
- School for Mental Health and Neuroscience, Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
| | - Torsten Klengel
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Nadine F. Joseph
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL USA,Department of Neuroscience, The Scripps Research Institute, Jupiter, FL USA
| | - Julian Krauskopf
- Department of Toxicogenomics, Maastricht University, Maastricht, The Netherlands
| | - Jos Kleinjans
- Department of Toxicogenomics, Maastricht University, Maastricht, The Netherlands
| | - Christiaan H. Vinkers
- Brain Center Rudolf Magnus, Department of Psychiatry, University Medical Center Utrecht, The Netherlands
| | - Marco P.M. Boks
- Brain Center Rudolf Magnus, Department of Psychiatry, University Medical Center Utrecht, The Netherlands
| | - Elbert Geuze
- Brain Center Rudolf Magnus, Department of Psychiatry, University Medical Center Utrecht, The Netherlands.,Research Centre for Military Mental Healthcare, Ministry of Defence, Utrecht, The Netherlands
| | - Eric Vermetten
- Brain Center Rudolf Magnus, Department of Psychiatry, University Medical Center Utrecht, The Netherlands.,Research Centre for Military Mental Healthcare, Ministry of Defence, Utrecht, The Netherlands.,Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands
| | - Sabina Berretta
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Kerry J. Ressler
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Bart P.F. Rutten
- School for Mental Health and Neuroscience, Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
| | - Gavin Rumbaugh
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL USA
| | - Courtney A. Miller
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL USA,Department of Neuroscience, The Scripps Research Institute, Jupiter, FL USA.,Correspondence to: Courtney Miller , 130 Scripps Way, Jupiter, FL 33458, Phone 561-228-2958
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Finnie PSB, Nader K. Amyloid Beta Secreted during Consolidation Prevents Memory Malleability. Curr Biol 2020; 30:1934-1940.e4. [PMID: 32243855 DOI: 10.1016/j.cub.2020.02.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 01/21/2020] [Accepted: 02/26/2020] [Indexed: 12/21/2022]
Abstract
Memory allows organisms to predict future events based on their prior sampling of the world. Rather than faithfully encoding each detail of related episodes, the brain is thought to incrementally construct probabilistic estimates of environmental statistics that are re-evaluated each time relevant events are encountered [1]. When faced with evidence that does not adequately fit mnemonic predictions, a process called reconsolidation can alter relevant memories to better recapitulate ongoing experience [2]. Conversely, when an ongoing event matches well-established predictions, reactivated memories tend to remain stable [3, 4]. In part, the brain may confer selective mnemonic stability by shifting cell-intrinsic mechanisms of plasticity induction [5], which could serve to constrain maladaptive updating of reliably predictive representations during anomalous events. Based on evidence of decreased cognitive flexibility and restricted synaptic plasticity in later life [6], we hypothesized that some prevalent age-associated neurobiological changes might in fact contribute to mnemonic stability [7]. Specifically, we predicted that amyloid beta (Aβ)-a peptide that often accumulates in the brains of individuals expressing senescent dementia [8-10]-is required for memory stabilization. Indeed, we observe elevated soluble Aβx-42 concentrations in the amygdala shortly after young adult rats form reconsolidation-resistant auditory fear memories. Suppressing secretases required for Aβ production immediately after learning prevents mnemonic stabilization, rendering these memories vulnerable to disruption by post-reactivation amnestic treatments. Thus, the seemingly pathogenic Aβ42 peptide may serve an adaptive physiological function during memory consolidation by engaging mechanisms that protect reliably predictive representations against subsequent modification.
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Affiliation(s)
- Peter S B Finnie
- Psychology Department, McGill University, 1205 Avenue Dr. Penfield, Montreal, QC H3A 1B1, Canada.
| | - Karim Nader
- Psychology Department, McGill University, 1205 Avenue Dr. Penfield, Montreal, QC H3A 1B1, Canada.
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Taylor RM, Smith R, Collins CE, Mossman D, Wong-Brown MW, Chan EC, Evans TJ, Attia JR, Buckley N, Drysdale K, Smith T, Butler T, Hure AJ. Global DNA methylation and cognitive and behavioral outcomes at 4 years of age: A cross-sectional study. Brain Behav 2020; 10:e01579. [PMID: 32109009 PMCID: PMC7177573 DOI: 10.1002/brb3.1579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 01/27/2020] [Accepted: 02/09/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Accumulating evidence suggests that breastfeeding exclusivity and duration are positively associated with child cognition. This study investigated whether DNA methylation, an epigenetic mechanism modified by nutrient intake, may contribute to the link between breastfeeding and child cognition. The aim was to quantify the relationship between global DNA methylation and cognition and behavior at 4 years of age. METHODS Child behavior and cognition were measured at age 4 years using the Wechsler Preschool and Primary Scale of Intelligence, third version (WPPSI-III), and Child Behavior Checklist (CBC). Global DNA methylation (%5-methylcytosines (%5mC)) was measured in buccal cells at age 4 years, using an enzyme-linked immunosorbent assay (ELISA) commercial kit. Linear regression models were used to quantify the statistical relationships. RESULTS Data were collected from 73 children recruited from the Women and Their Children's Health (WATCH) study. No statistically significant associations were found between global DNA methylation levels and child cognition or behavior (p > .05), though the estimates of effect were consistently negative. Global DNA methylation levels in males were significantly higher than in females (median %5mC: 1.82 vs. 1.03, males and females, respectively, (p < .05)). CONCLUSION No association was found between global DNA methylation and child cognition and behavior; however given the small sample, this study should be pooled with other cohorts in future meta-analyses.
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Affiliation(s)
- Rachael M Taylor
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Roger Smith
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Clare E Collins
- Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,Faculty of Health and Medicine, School of Health Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, NSW, Australia
| | - David Mossman
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,Department of Molecular Medicine, NSW Health Pathology, John Hunter Hospital, New Lambton Heights, NSW, Australia
| | - Michelle W Wong-Brown
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,Faculty of Health, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Eng-Cheng Chan
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Tiffany-Jane Evans
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,Clinical Research Design IT and Statistical Support (CReDITSS) Unit, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - John R Attia
- Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,Clinical Research Design IT and Statistical Support (CReDITSS) Unit, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Nick Buckley
- School of Psychology and Exercise Science, Murdoch University, Murdoch, WA, Australia
| | - Karen Drysdale
- Faculty of Science, School Psychology, University of Newcastle, Callaghan, NSW, Australia
| | - Tenele Smith
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Trent Butler
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Alexis J Hure
- Faculty of Health and Medicine, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,Priority Research Centre for Generational, Health and Ageing, University of Newcastle, Callaghan, NSW, Australia
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Abstract
MicroRNAs as critical regulators of gene expression important for functions including neuronal development, synapse formation, and synaptic plasticity have been linked with the regulation of neurobiological systems that underlie anxiety processing in the brain. In this chapter, we give an update on associative evidence linking regulation of microRNAs with anxiety- and trauma-related disorders. Moving beyond correlative research, functional studies have emerged recently that explore causal relationships between microRNA expression and anxiety-like behavior. It has been demonstrated that experimental up- or downregulation of the candidate microRNAs in important nodes of the anxiety neurocircuitry can indeed modulate anxiety-related behavior in animal models. Improved methodologies for assessing microRNA-mediated modulation have aided such functional studies, revealing a number of anxiety-regulating microRNAs including miR-15a, miR-17-92, miR-34, miR-101, miR-124, miR-135, and miR-155. Important functional target genes of these identified microRNAs are associated with specific neurotransmitter/neuromodulator signaling, neurotrophin (e.g., BDNF) expression and other aspects of synaptic plasticity, as well as with stress-regulatory/hypothalamic-pituitary-axis function. Furthermore, microRNAs have been revealed that are regulated in distinct brain regions following various anxiety-attenuating strategies. These include pharmacological treatments such as antidepressants and other drugs, as well as non-pharmacological interventions such as fear extinction/exposure therapy or positive stimuli such as exposure to environmental enrichment. These are first indications for a role for microRNAs in the mechanism of action of anxiolytic treatments. As research continues, there is much hope that a deeper understanding of the microRNA-mediated mechanisms underlying anxiety-related disorders could open up possibilities for future novel biomarker and treatment strategies.
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Huang Q, Chen G, Huang Y, Li J, Ding Y, Zhang S, Chi X, Xie Q, Ning Q, Xu L, Zhang J. Genetic variant rs3750625 in the 3'UTR of ADRA2A affects the sleep quality of patients in the ICU by promoting miR‑34a binding to ADRA2A. Int J Mol Med 2020; 45:910-918. [PMID: 31922215 DOI: 10.3892/ijmm.2020.4456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 05/10/2019] [Indexed: 11/06/2022] Open
Abstract
Poor sleep is very common in patients in the ICU and hence, sleep quality is considered an important aspect of intensive care; however, the underlying mechanisms of poor sleep in patients in the ICU remain unknown. In this study, we aimed to explore the role of rs3750625, which is located in the 3'UTR of adrenoceptor alpha 2A (ADRA2A), in sleep quality. For this purpose, luciferase assay was conducted to investigate the association between miR‑34a and ADRA2A, and the effect of rs3750625 on the binding affinity between miR‑34a and ADRA2A was examined. RT‑qPCR and western blot analysis were carried out to examine the regulatory association between miR‑34a and ADRA2A. The differences in sleep time and efficiency were compared between groups carrying the AC and CC genotypes of rs3750625, respectively. According to the results from an online search, miR‑34a could directly bind to the 3'UTR of ADRA2A, and such binding was confirmed by the observation that miR‑34a inhibited the luciferase activity of major or minor ADRA2A 3'UTR in a dose‑dependent manner in HCN‑1A and U251 cells. In addition, the ADRA2A protein and mRNA levels in the HCN‑1A and U251 cells were evidently decreased following transfection with miR‑34a precursors. Notably, patients in the AC group exhibited a similar level of miR‑34a mRNA expression compared with patients in the CC group; however, the ADRA2A mRNA and protein levels in the CC group were significantly increased in comparison with those in the AC group. In addition, the sleep time and sleep efficiency in the CC group were much higher than those in the AC group. Furthermore, the mean arterial pressure (MAP) values in both the AC and CC groups remained stable from 22:00 to 08:00, and the respiratory rates in both groups were quite similar. However, the heart rate of patients in the CC group was much lower than that of patients in the AC group. On the whole, the findings of this study suggest that the genetic variant rs3750625 in the 3'UTR of ADRA2A affects the sleep quality of patients in the ICU by promoting the binding of miR‑34a to ADRA2A, and hence it may serve as a novel biomarker for the prediction of the sleep quality of patients in the ICU.
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Affiliation(s)
- Qingping Huang
- ICU, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Ganhai Chen
- ICU, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Yanfang Huang
- Nursing Department, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Jinting Li
- ICU, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Yanjing Ding
- ICU, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Shuqing Zhang
- Nursing Department, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Xiuwen Chi
- School of Nursing, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Qiong Xie
- Nursing Department, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Qinrong Ning
- Department of General Surgery, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Liuqin Xu
- Nursing Department, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
| | - Jianrong Zhang
- Nursing Department, Dongguan Houjie Hospital, Dongguan, Guangdong 523945, P.R. China
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Conrad D, Wilker S, Schneider A, Karabatsiakis A, Pfeiffer A, Kolassa S, Freytag V, Vukojevic V, Vogler C, Milnik A, Papassotiropoulos A, J.‐F. de Quervain D, Elbert T, Kolassa I. Integrated genetic, epigenetic, and gene set enrichment analyses identify NOTCH as a potential mediator for PTSD risk after trauma: Results from two independent African cohorts. Psychophysiology 2020; 57:e13288. [PMID: 30328613 PMCID: PMC7379258 DOI: 10.1111/psyp.13288] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 08/14/2018] [Accepted: 08/17/2018] [Indexed: 12/17/2022]
Abstract
The risk of developing posttraumatic stress disorder (PTSD) increases with the number of traumatic event types experienced (trauma load) in interaction with other psychobiological risk factors. The NOTCH (neurogenic locus notch homolog proteins) signaling pathway, consisting of four different trans-membrane receptor proteins (NOTCH1-4), constitutes an evolutionarily well-conserved intercellular communication pathway (involved, e.g., in cell-cell interaction, inflammatory signaling, and learning processes). Its association with fear memory consolidation makes it an interesting candidate for PTSD research. We tested for significant associations of common genetic variants of NOTCH1-4 (investigated by microarray) and genomic methylation of saliva-derived DNA with lifetime PTSD risk in independent cohorts from Northern Uganda (N1 = 924) and Rwanda (N2 = 371), and investigated whether NOTCH-related gene sets were enriched for associations with lifetime PTSD risk. We found associations of lifetime PTSD risk with single nucleotide polymorphism (SNP) rs2074621 (NOTCH3) (puncorrected = 0.04) in both cohorts, and with methylation of CpG site cg17519949 (NOTCH3) (puncorrected = 0.05) in Rwandans. Yet, none of the (epi-)genetic associations survived multiple testing correction. Gene set enrichment analyses revealed enrichment for associations of two NOTCH pathways with lifetime PTSD risk in Ugandans: NOTCH binding (pcorrected = 0.003) and NOTCH receptor processing (pcorrected = 0.01). The environmental factor trauma load was significant in all analyses (all p < 0.001). Our integrated methodological approach suggests NOTCH as a possible mediator of PTSD risk after trauma. The results require replication, and the precise underlying pathophysiological mechanisms should be illuminated in future studies.
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Affiliation(s)
- Daniela Conrad
- Clinical Psychology and NeuropsychologyUniversity of KonstanzKonstanzGermany
- Clinical & Biological Psychology, Institute of Psychology and EducationUlm UniversityUlmGermany
| | - Sarah Wilker
- Clinical & Biological Psychology, Institute of Psychology and EducationUlm UniversityUlmGermany
| | - Anna Schneider
- Clinical & Biological Psychology, Institute of Psychology and EducationUlm UniversityUlmGermany
| | - Alexander Karabatsiakis
- Clinical & Biological Psychology, Institute of Psychology and EducationUlm UniversityUlmGermany
| | - Anett Pfeiffer
- Clinical Psychology and NeuropsychologyUniversity of KonstanzKonstanzGermany
| | | | - Virginie Freytag
- Division of Molecular NeuroscienceUniversity of BaselBaselSwitzerland
- Transfaculty Research Platform Molecular and Cognitive NeurosciencesUniversity of BaselBaselSwitzerland
| | - Vanja Vukojevic
- Division of Molecular NeuroscienceUniversity of BaselBaselSwitzerland
- Transfaculty Research Platform Molecular and Cognitive NeurosciencesUniversity of BaselBaselSwitzerland
- Department Biozentrum, Life Sciences Training FacilityUniversity of BaselBaselSwitzerland
- Psychiatric University ClinicsUniversity of BaselBaselSwitzerland
| | - Christian Vogler
- Division of Molecular NeuroscienceUniversity of BaselBaselSwitzerland
- Transfaculty Research Platform Molecular and Cognitive NeurosciencesUniversity of BaselBaselSwitzerland
- Psychiatric University ClinicsUniversity of BaselBaselSwitzerland
| | - Annette Milnik
- Division of Molecular NeuroscienceUniversity of BaselBaselSwitzerland
- Transfaculty Research Platform Molecular and Cognitive NeurosciencesUniversity of BaselBaselSwitzerland
- Psychiatric University ClinicsUniversity of BaselBaselSwitzerland
| | - Andreas Papassotiropoulos
- Division of Molecular NeuroscienceUniversity of BaselBaselSwitzerland
- Transfaculty Research Platform Molecular and Cognitive NeurosciencesUniversity of BaselBaselSwitzerland
- Department Biozentrum, Life Sciences Training FacilityUniversity of BaselBaselSwitzerland
- Psychiatric University ClinicsUniversity of BaselBaselSwitzerland
| | - Dominique J.‐F. de Quervain
- Transfaculty Research Platform Molecular and Cognitive NeurosciencesUniversity of BaselBaselSwitzerland
- Psychiatric University ClinicsUniversity of BaselBaselSwitzerland
- Division of Cognitive NeuroscienceUniversity of BaselBaselSwitzerland
| | - Thomas Elbert
- Clinical Psychology and NeuropsychologyUniversity of KonstanzKonstanzGermany
| | - Iris‐Tatjana Kolassa
- Clinical & Biological Psychology, Institute of Psychology and EducationUlm UniversityUlmGermany
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Navabpour S, Kwapis JL, Jarome TJ. A neuroscientist's guide to transgenic mice and other genetic tools. Neurosci Biobehav Rev 2020; 108:732-748. [PMID: 31843544 PMCID: PMC8049509 DOI: 10.1016/j.neubiorev.2019.12.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/05/2019] [Accepted: 12/09/2019] [Indexed: 12/14/2022]
Abstract
The past decade has produced an explosion in the number and variety of genetic tools available to neuroscientists, resulting in an unprecedented ability to precisely manipulate the genome and epigenome in behaving animals. However, no single resource exists that describes all of the tools available to neuroscientists. Here, we review the genetic, transgenic, and viral techniques that are currently available to probe the complex relationship between genes and cognition. Topics covered include types of traditional transgenic mouse models (knockout, knock-in, reporter lines), inducible systems (Cre-loxP, Tet-On, Tet-Off) and cell- and circuit-specific systems (TetTag, TRAP, DIO-DREADD). Additionally, we provide details on virus-mediated and siRNA/shRNA approaches, as well as a comprehensive discussion of the myriad manipulations that can be made using the CRISPR-Cas9 system, including single base pair editing and spatially- and temporally-regulated gene-specific transcriptional control. Collectively, this review will serve as a guide to assist neuroscientists in identifying and choosing the appropriate genetic tools available to study the complex relationship between the brain and behavior.
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Affiliation(s)
- Shaghayegh Navabpour
- Fralin Biomedical Research Institute, Translational Biology, Medicine and Health, Roanoke, VA, USA
| | - Janine L Kwapis
- Department of Biology, Pennsylvania State University, College Park, PA, USA; Center for the Molecular Investigation of Neurological Disorders (CMIND), Pennsylvania State University, College Park, PA, USA.
| | - Timothy J Jarome
- Fralin Biomedical Research Institute, Translational Biology, Medicine and Health, Roanoke, VA, USA; Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
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40
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Zhang HH, Meng SQ, Guo XY, Zhang JL, Zhang W, Chen YY, Lu L, Yang JL, Xue YX. Traumatic Stress Produces Delayed Alterations of Synaptic Plasticity in Basolateral Amygdala. Front Psychol 2019; 10:2394. [PMID: 31708835 PMCID: PMC6824323 DOI: 10.3389/fpsyg.2019.02394] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 10/07/2019] [Indexed: 12/19/2022] Open
Abstract
Acute traumatic event exposure is a direct cause of post-traumatic stress disorder (PTSD). Amygdala is suggested to be associated with the development of PTSD. In our previous findings, different activation patterns of GABAergic neurons and glutamatergic neurons in early or late stages after stress were found. However, the neural plastic mechanism underlying the role of basolateral amygdala (BLA) in post-traumatic stress disorder remains unclear. Therefore, this study mainly aimed at investigating time-dependent morphologic and electrophysiological changes in BLA during the development of PTSD. We used single prolonged stress (SPS) procedure to establish PTSD model of rats. The rats showed no alterations in anxiety behavior as well as in dendritic spine density or synaptic transmission in BLA 1 day after SPS. However, 10 days after SPS, rats showed enhancement of anxiety behavior, and spine density and frequency of miniature excitatory and inhibitory postsynaptic currents in BLA. Our results suggested that after traumatic stress, BLA displayed delayed increase in both spinogenesis and synaptic transmission, which seemed to facilitate the development of PTSD.
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Affiliation(s)
- Huan-Huan Zhang
- Department of Psychiatry, Tianjin Medical University, Tianjin, China.,Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Shi-Qiu Meng
- National Institute on Drug Dependence, Peking University, Beijing, China
| | - Xin-Yi Guo
- Department of Psychiatry, Tianjin Medical University, Tianjin, China.,Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing-Liang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, Peking University School of Pharmaceutical Sciences, Beijing, China.,Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University College of Pharmacy and Purdue Institute for Integrative Neuroscience, West Lafayette, IN, United States
| | - Wen Zhang
- National Institute on Drug Dependence, Peking University, Beijing, China
| | - Ya-Yun Chen
- National Institute on Drug Dependence, Peking University, Beijing, China
| | - Lin Lu
- National Institute on Drug Dependence, Peking University, Beijing, China.,Peking University Sixth Hospital/Peking University Institute of Mental Health, Peking University, Beijing, China
| | - Jian-Li Yang
- Department of Psychiatry, Tianjin Medical University, Tianjin, China.,Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-Xue Xue
- National Institute on Drug Dependence, Peking University, Beijing, China
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41
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Ho DM, Artavanis-Tsakonas S, Louvi A. The Notch pathway in CNS homeostasis and neurodegeneration. WILEY INTERDISCIPLINARY REVIEWS-DEVELOPMENTAL BIOLOGY 2019; 9:e358. [PMID: 31502763 DOI: 10.1002/wdev.358] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 06/23/2019] [Indexed: 12/19/2022]
Abstract
The role of the Notch signaling pathway in neural development has been well established over many years. More recent studies, however, have demonstrated that Notch continues to be expressed and active throughout adulthood in many areas of the central nervous system. Notch signals have been implicated in adult neurogenesis, memory formation, and synaptic plasticity in the adult organism, as well as linked to acute brain trauma and chronic neurodegenerative conditions. NOTCH3 mutations are responsible for the most common form of hereditary stroke, the progressive disorder cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy. Notch has also been associated with several progressive neurodegenerative diseases, including Alzheimer's disease, multiple sclerosis, and amyotrophic lateral sclerosis. Although numerous studies link Notch activity with CNS homeostasis and neurodegenerative diseases, the data thus far are primarily correlative, rather than functional. Nevertheless, the evidence for Notch pathway activity in specific neural cellular contexts is strong, and certainly intriguing, and points to the possibility that the pathway carries therapeutic promise. This article is categorized under: Nervous System Development > Flies Signaling Pathways > Cell Fate Signaling Nervous System Development > Vertebrates: General Principles.
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Affiliation(s)
- Diana M Ho
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts
| | | | - Angeliki Louvi
- Departments of Neurosurgery and Neuroscience and Program on Neurogenetics, Yale School of Medicine, New Haven, Connecticut
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Jones ME, Sillivan SE, Jamieson S, Rumbaugh G, Miller CA. microRNA mir-598-3p mediates susceptibility to stress enhancement of remote fear memory. ACTA ACUST UNITED AC 2019; 26:363-372. [PMID: 31416909 PMCID: PMC6699414 DOI: 10.1101/lm.048827.118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/10/2019] [Indexed: 12/26/2022]
Abstract
microRNAs (miRNAs) have emerged as potent regulators of learning, recent memory, and extinction. However, our understanding of miRNAs directly involved in regulating complex psychiatric conditions perpetuated by aberrant memory, such as in posttraumatic stress disorder (PTSD), remains limited. To begin to address the role of miRNAs in persistent memories, we performed small-RNA sequencing on basolateral amygdala (BLA) tissue and identified miRNAs altered by auditory fear conditioning (FC) one month after training. mir-598-3p, a highly conserved miRNA previously unstudied in the brain, was down-regulated in the BLA. Further decreasing BLA mir-598-3p levels did not increase strength of the remote fear memory. Given that stress is a critical component in PTSD, we next assessed the impact of stress and stress-enhanced fear learning (SEFL) on mir-598-3p levels, finding the miRNA is elevated in the BLA of male, but not female, mice susceptible to the effects of stress in SEFL. Accordingly, intra-BLA inhibition of mir-598-3p interfered with expression and extinction of the remote fear memory in male, but not female, mice. This effect could not be attributed to an anxiolytic effect of miRNA inhibition. Finally, bioinformatic analysis following quantitative proteomics on BLA tissue collected 30 d post-SEFL training identified putative mir-598-3p targets and related pathways mediating the differential susceptibility, with evidence for regulation of the actin cytoskeleton, the core mediator of structural plasticity. Taken together, the results suggest BLA mir-598-3p may be recruited by stress to mediate a critical switch from a salient remote fear memory to one that is enhanced and extinction-resistant.
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Affiliation(s)
- Meghan E Jones
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, USA.,Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida 33458, USA
| | - Stephanie E Sillivan
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, USA.,Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida 33458, USA
| | - Sarah Jamieson
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, USA.,Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida 33458, USA
| | - Gavin Rumbaugh
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida 33458, USA
| | - Courtney A Miller
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, USA.,Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida 33458, USA
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Lee YJ, Ch'ng TH. RIP at the Synapse and the Role of Intracellular Domains in Neurons. Neuromolecular Med 2019; 22:1-24. [PMID: 31346933 DOI: 10.1007/s12017-019-08556-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 07/12/2019] [Indexed: 12/18/2022]
Abstract
Regulated intramembrane proteolysis (RIP) occurs in a cell when transmembrane proteins are cleaved by intramembrane proteases such as secretases to generate soluble protein fragments in the extracellular environment and the cytosol. In the cytosol, these soluble intracellular domains (ICDs) have local functions near the site of cleavage or in many cases, translocate to the nucleus to modulate gene expression. While the mechanism of RIP is relatively well studied, the fate and function of ICDs for most substrate proteins remain poorly characterized. In neurons, RIP occurs in various subcellular compartments including at the synapse. In this review, we summarize current research on RIP in neurons, focusing specifically on synaptic proteins where the presence and function of the ICDs have been reported. We also briefly discuss activity-driven processing of RIP substrates at the synapse and the cellular machinery that support long-distance transport of ICDs from the synapse to the nucleus. Finally, we describe future challenges in this field of research in the context of understanding the contribution of ICDs in neuronal function.
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Affiliation(s)
- Yan Jun Lee
- Lee Kong Chian School of Medicine, Nanyang Technological University, Clinical Science Building, 11 Mandalay Road, 10-01-01 M, Singapore, 308232, Singapore.,Interdisciplinary Graduate School (IGS), Nanyang Technological University, Singapore, Singapore
| | - Toh Hean Ch'ng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Clinical Science Building, 11 Mandalay Road, 10-01-01 M, Singapore, 308232, Singapore. .,School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.
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Snijders C, de Nijs L, Baker DG, Hauger RL, van den Hove D, Kenis G, Nievergelt CM, Boks MP, Vermetten E, Gage FH, Rutten BPF. MicroRNAs in Post-traumatic Stress Disorder. Curr Top Behav Neurosci 2019; 38:23-46. [PMID: 29063484 DOI: 10.1007/7854_2017_32] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a psychiatric disorder that can develop following exposure to or witnessing of a (potentially) threatening event. A critical issue is to pinpoint the (neuro)biological mechanisms underlying the susceptibility to stress-related disorder such as PTSD, which develops in the minority of ~15% of individuals exposed to trauma. Over the last few years, a first wave of epigenetic studies has been performed in an attempt to identify the molecular underpinnings of the long-lasting behavioral and mental effects of trauma exposure. The potential roles of non-coding RNAs (ncRNAs) such as microRNAs (miRNAs) in moderating or mediating the impact of severe stress and trauma are increasingly gaining attention. To date, most studies focusing on the roles of miRNAs in PTSD have, however, been completed in animals, using cross-sectional study designs and focusing almost exclusively on subjects with susceptible phenotypes. Therefore, there is a strong need for new research comprising translational and cross-species approaches that use longitudinal designs for studying trajectories of change contrasting susceptible and resilient subjects. The present review offers a comprehensive overview of available studies of miRNAs in PTSD and discusses the current challenges, pitfalls, and future perspectives of this field.
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Affiliation(s)
- Clara Snijders
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Faculty of Health, Medicine and Life Sciences, Maastricht University, European Graduate School of Neuroscience, (EURON), Maastricht, 6200 MD, The Netherlands
| | - Laurence de Nijs
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Faculty of Health, Medicine and Life Sciences, Maastricht University, European Graduate School of Neuroscience, (EURON), Maastricht, 6200 MD, The Netherlands
| | - Dewleen G Baker
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, 92037, USA
- VA Center of Excellence for Stress and Mental Health, San Diego, La Jolla, CA, 92037, USA
- VA San Diego Healthcare System, San Diego, La Jolla, CA, 92037, USA
| | - Richard L Hauger
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, 92037, USA
- VA Center of Excellence for Stress and Mental Health, San Diego, La Jolla, CA, 92037, USA
- VA San Diego Healthcare System, San Diego, La Jolla, CA, 92037, USA
| | - Daniel van den Hove
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Faculty of Health, Medicine and Life Sciences, Maastricht University, European Graduate School of Neuroscience, (EURON), Maastricht, 6200 MD, The Netherlands
- Laboratory of Translational Neuroscience, Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, 97080, Germany
| | - Gunter Kenis
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Faculty of Health, Medicine and Life Sciences, Maastricht University, European Graduate School of Neuroscience, (EURON), Maastricht, 6200 MD, The Netherlands
| | - Caroline M Nievergelt
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, 92037, USA
- VA Center of Excellence for Stress and Mental Health, San Diego, La Jolla, CA, 92037, USA
| | - Marco P Boks
- Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, 3584 CG, The Netherlands
| | - Eric Vermetten
- Military Mental Health Research Center, Ministry of Defense, P.O. Box 90000, Utrecht, 3509 AA, The Netherlands
- Department of Psychiatry, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands
- Arq Psychotrauma Research Group, Diemen, 1112 XE, The Netherlands
| | - Fred H Gage
- Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Bart P F Rutten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Faculty of Health, Medicine and Life Sciences, Maastricht University, European Graduate School of Neuroscience, (EURON), Maastricht, 6200 MD, The Netherlands.
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Xu XF, Wang YC, Zong L, Wang XL. miR-151-5p modulates APH1a expression to participate in contextual fear memory formation. RNA Biol 2019; 16:282-294. [PMID: 30663934 DOI: 10.1080/15476286.2019.1572435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Long-term memory formation requires gene expression and new protein synthesis. MicroRNAs (miRNAs), a family of small non-coding RNAs that inhibit target gene mRNA expression, are involved in new memory formation. In this study, elevated miR-151-5p (miR-151) levels were found to be responsible for hippocampal contextual fear memory formation. Using a luciferase reporter assay, we demonstrated that miR-151 targets APH1a, a protein that has been identified as a key factor in γ-secretase activity, namely APH1a. Blocking miR-151 can upregulate APH1a protein levels and subsequently impair hippocampal fear memory formation. These results indicate that miR-151 is involved in hippocampal contextual fear memory by inhibiting APH1a protein expression. This work provides novel evidence for the role of miRNAs in memory formation and demonstrates the implication of APH1a protein in miRNA processing in the adult brain.
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Affiliation(s)
- Xu-Feng Xu
- a Institute of Brain Science and Disease, School of Basic Medicine , Qingdao University , Qingdao , Shandong , People's Republic of China.,b The Royal, Department of Psychiatry, and Department of Cellular and Molecular Medicine , University of Ottawa Institute of Mental Health Research , Ottawa , Canada.,c Department of Cell and Neurobiology , School of Basic Medicine, Shandong University , Jinan , Shandong , People's Republic of China
| | - You-Cui Wang
- a Institute of Brain Science and Disease, School of Basic Medicine , Qingdao University , Qingdao , Shandong , People's Republic of China
| | - Liang Zong
- d BGI-Shenzhen , Shenzhen , People's Republic of China
| | - Xiao-Long Wang
- e Department of Breast Surgery , Qilu hospital, Shandong University , Jinan , Shandong , People's Republic of China
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Abstract
Learned safety is a fear inhibitory mechanism, which regulates fear responses, promotes episodes of safety and generates positive affective states. Despite its potential as experimental model for several psychiatric illnesses, including post-traumatic stress disorder and depression, the molecular mechanisms of learned safety remain poorly understood, We here investigated the molecular mediators of learned safety, focusing on the characterization of miRNA expression in the basolateral amygdala (BLA). Comparing levels of 22 miRNAs in learned safety and learned fear trained mice, six safety-related miRNAs, including three members of the miR-132/-212 family, were identified. A gain-of-function approach based upon in-vivo transfection of a specific miRNA mimic, and miR-132/212 knock-out mice as loss-of-function tool were used in order to determine the relevance of miR-132 for learned safety at the behavioral and the neuronal functional levels. Using a designated bioinformatic approach, PTEN and GAT1 were identified as potential novel miR-132 target genes and further experimentally validated. We here firstly provide evidence for a regulation of amygdala miRNA expression in learned safety and propose miR-132 as signature molecule to be considered in future preclinical and translational approaches testing the transdiagnostic relevance of learned safety as intermediate phenotype in fear and stress-related disorders.
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47
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Chua CEL, Tang BL. miR-34a in Neurophysiology and Neuropathology. J Mol Neurosci 2018; 67:235-246. [DOI: 10.1007/s12031-018-1231-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 11/22/2018] [Indexed: 12/28/2022]
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48
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Dwivedi Y. MicroRNAs in depression and suicide: Recent insights and future perspectives. J Affect Disord 2018; 240:146-154. [PMID: 30071418 PMCID: PMC6108934 DOI: 10.1016/j.jad.2018.07.075] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/10/2018] [Accepted: 07/23/2018] [Indexed: 01/07/2023]
Abstract
Suicide is a major public health concern. A significant proportion of depressed individuals show suicidal ideation. The currently available medications are not optimal and a large number of depressed/suicidal patients do not respond to these medications. Thus, there is an urgent need to fully understand the neurobiological mechanisms associated with depression and suicidal behavior and to find novel targets for therapeutic interventions. In this regard, microRNAs (miRNAs), member of small non-coding RNA family, have emerged as an invaluable tool not only to understand disease pathogenesis but also to precisely pinpoint the targets that can be developed as drugs. In this review, these aspects have been discussed in a comprehensive and critical manner.
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Affiliation(s)
- Yogesh Dwivedi
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, SC711 Sparks Center, 1720 7th Avenue, Birmingham, AL 35294, USA.
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Sunwoo JS, Jeon D, Lee ST, Moon J, Yu JS, Park DK, Bae JY, Lee DY, Kim S, Jung KH, Park KI, Jung KY, Kim M, Lee SK, Chu K. Maternal immune activation alters brain microRNA expression in mouse offspring. Ann Clin Transl Neurol 2018; 5:1264-1276. [PMID: 30349861 PMCID: PMC6186947 DOI: 10.1002/acn3.652] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 08/27/2018] [Indexed: 01/15/2023] Open
Abstract
Objective Maternal immune activation (MIA) is associated with an increased risk of autism spectrum disorder (ASD) in offspring. Herein, we investigate the altered expression of microRNAs (miRNA), and that of their target genes, in the brains of MIA mouse offspring. Methods To generate MIA model mice, pregnant mice were injected with polyriboinosinic:polyribocytidylic acid on embryonic day 12.5. We performed miRNA microarray and mRNA sequencing in order to determine the differential expression of miRNA and mRNA between MIA mice and controls, at 3 weeks of age. We further identified predicted target genes of dysregulated miRNAs, and miRNA‐target interactions, based on the inverse correlation of their expression levels. Results Mice prenatally subjected to MIA exhibited behavioral abnormalities typical of ASD, such as a lack of preference for social novelty and reduced prepulse inhibition. We found 29 differentially expressed miRNAs (8 upregulated and 21 downregulated) and 758 differentially expressed mRNAs (542 upregulated and 216 downregulated) in MIA offspring compared to controls. Based on expression levels of the predicted target genes, 18 downregulated miRNAs (340 target genes) and three upregulated miRNAs (60 target genes) were found to be significantly enriched among the differentially expressed genes. miRNA and target gene interactions were most significant between mmu‐miR‐466i‐3p and Hfm1 (ATP‐dependent DNA helicase homolog), and between mmu‐miR‐877‐3p and Aqp6 (aquaporin 6). Interpretation Our results provide novel information regarding miRNA expression changes and their putative targets in the early postnatal period of brain development. Further studies will be needed to evaluate potential pathogenic roles of the dysregulated miRNAs.
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Affiliation(s)
- Jun-Sang Sunwoo
- Department of Neurology Soonchunhyang University College of Medicine Seoul South Korea
| | | | - Soon-Tae Lee
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea.,Program in Neuroscience Seoul National University College of Medicine Seoul South Korea
| | - Jangsup Moon
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea.,Program in Neuroscience Seoul National University College of Medicine Seoul South Korea.,Department of Neurosurgery Seoul National University Hospital Seoul South Korea
| | - Jung-Suk Yu
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea
| | - Dong-Kyu Park
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea
| | - Ji-Yeon Bae
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea
| | - Doo Young Lee
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea
| | - Sangwoo Kim
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea
| | - Keun-Hwa Jung
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea.,Program in Neuroscience Seoul National University College of Medicine Seoul South Korea
| | - Kyung-Il Park
- Department of Neurology Seoul National University Hospital Healthcare System Gangnam Center Seoul South Korea
| | - Ki-Young Jung
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea.,Program in Neuroscience Seoul National University College of Medicine Seoul South Korea
| | - Manho Kim
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea.,Program in Neuroscience Seoul National University College of Medicine Seoul South Korea.,Protein Metabolism Medical Research Center Seoul National University College of Medicine Seoul South Korea
| | - Sang Kun Lee
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea.,Program in Neuroscience Seoul National University College of Medicine Seoul South Korea
| | - Kon Chu
- Laboratory for Neurotherapeutics Department of Neurology Comprehensive Epilepsy Center Biomedical Research Institute Seoul National University Hospital Seoul South Korea.,Program in Neuroscience Seoul National University College of Medicine Seoul South Korea
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50
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Song Z, Chen H, Xu W, Wu S, Zhu G. Basolateral amygdala calpain is required for extinction of contextual fear-memory. Neurobiol Learn Mem 2018; 155:180-188. [PMID: 30086394 DOI: 10.1016/j.nlm.2018.08.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/25/2018] [Accepted: 08/03/2018] [Indexed: 02/07/2023]
Abstract
Extinction of fear-memory is essential for emotional and mental changes. However, the mechanisms underlying extinction of fear-memory are largely unknown. Calpain is a type of calcium-dependent protease that plays a critical role in memory consolidation and reconsolidation. Whether calpain functions in extinction of fear-memory is unknown, as are the molecular mechanisms. In this study, we investigated the pivotal role of calpain in extinction of fear-memory in mice, and assessed its mechanism. Conditioned stimulation/unconditioned stimulation-conditioned stimulation paradigms combined with pharmacological methods were employed to evaluate the action of calpain in memory extinction. Our data demonstrated that intraperitoneal or intra-basolateral amygdala (BLA) injection of calpain inhibitors could eliminate extinction of fear-memory in mice. Moreover, extinction of fear-memory paradigm-activated BLA calpain activity, which degraded suprachiasmatic nucleus circadian oscillatory protein (SCOP) and phosphatase and tensin homolog (PTEN), subsequently contributing to activation of a protein kinase B (AKT)-mammalian target of the rapamycin (mTor) signaling pathway. Additionally, cAMP-response element binding protein (CREB) phosphorylation was also augmented following extinction of fear-memory. Calpain inhibitor blocked the signaling pathway activation induced by extinction of fear-memory. Additionally, intra-BLA injection of rapamycin or cycloheximide also blocked the extinction of fear-memory. Conversely, intra-BLA injection of PTEN inhibitor, bpV, reversed the effect of calpeptin on extinction of fear-memory. Together, our data confirmed the function of BLA calpain in extinction of fear-memory, likely via degrading PTEN and activating AKT-mTor-dependent protein synthesis.
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Affiliation(s)
- Zhujin Song
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Hui Chen
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Wen Xu
- Department of Neurology, The first Affiliated Hospital of University of Science and Technology of China, Anhui Provincial Hospital, Hefei 230001, China
| | - Shengbing Wu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China; Anhui Academy of Chinese Medicine, Hefei 230038, China
| | - Guoqi Zhu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China; Anhui Academy of Chinese Medicine, Hefei 230038, China.
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