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Luan X, Xing H, Guo F, Liu W, Jiao Y, Liu Z, Wang X, Gao S. The role of ncRNAs in depression. Heliyon 2024; 10:e27307. [PMID: 38496863 PMCID: PMC10944209 DOI: 10.1016/j.heliyon.2024.e27307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/19/2024] Open
Abstract
Depressive disorders have a significant impact on public health, and depression have an unsatisfactory recurrence rate and are challenging to treat. Non-coding RNAs (ncRNAs) are RNAs that do not code protein, which have been shown to be crucial for transcriptional regulation. NcRNAs are important to the onset, progress and treatment of depression because they regulate various physiological functions. This makes them distinctively useful as biomarkers for diagnosing and tracking responses to therapy among individuals with depression. It is important to seek out and summarize the research findings on the impact of ncRNAs on depression since significant advancements have been made in this area recently. Hence, we methodically outlined the findings of published researches on ncRNAs and depression, focusing on microRNAs. Above all, this review aims to improve our understanding of ncRNAs and provide new insights of the diagnosis and treatment of depression.
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Affiliation(s)
- Xinchi Luan
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Han Xing
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Feifei Guo
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
| | - Weiyi Liu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Yang Jiao
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Zhenyu Liu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Xuezhe Wang
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Shengli Gao
- Biomedical Center, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
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2
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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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3
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Bludau A, Schwartz U, Zeitler DM, Royer M, Meister G, Neumann ID, Menon R. Functional involvement of septal miR-132 in extinction and oxytocin-mediated reversal of social fear. Mol Psychiatry 2023:10.1038/s41380-023-02309-3. [PMID: 37938765 DOI: 10.1038/s41380-023-02309-3] [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: 08/29/2022] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 11/09/2023]
Abstract
Social interactions are critical for mammalian survival and evolution. Dysregulation of social behavior often leads to psychopathologies such as social anxiety disorder, denoted by intense fear and avoidance of social situations. Using the social fear conditioning (SFC) paradigm, we analyzed expression levels of miR-132-3p and miR-124-3p within the septum, a brain region essential for social preference and avoidance behavior, after acquisition and extinction of social fear. Here, we found that SFC dynamically altered both microRNAs. Functional in vivo approaches using pharmacological strategies, inhibition of miR-132-3p, viral overexpression of miR-132-3p, and shRNA-mediated knockdown of miR-132-3p specifically within oxytocin receptor-positive neurons confirmed septal miR-132-3p to be critically involved not only in social fear extinction, but also in oxytocin-induced reversal of social fear. Moreover, Argonaute-RNA-co-immunoprecipitation-microarray analysis and further in vitro and in vivo quantification of target mRNA and protein, revealed growth differentiation factor-5 (Gdf-5) as a target of miR-132-3p. Septal application of GDF-5 impaired social fear extinction suggesting its functional involvement in the reversal of social fear. In summary, we show that septal miR-132-3p and its downstream target Gdf-5 regulate social fear expression and potentially mediate oxytocin-induced reversal of social fear.
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Affiliation(s)
- Anna Bludau
- Department of Behavioral and Molecular Neurobiology, University of Regensburg, Regensburg, Germany
| | - Uwe Schwartz
- NGS Analysis Center, Biology and Pre-Clinical Medicine, University of Regensburg, Regensburg, Germany
| | - Daniela M Zeitler
- Regensburg Center for Biochemistry, Laboratory of RNA Biology, University of Regensburg, Regensburg, Germany
| | - Melanie Royer
- Department of Behavioral and Molecular Neurobiology, University of Regensburg, Regensburg, Germany
- Regensburg Center for Biochemistry, Laboratory of RNA Biology, University of Regensburg, Regensburg, Germany
| | - Gunter Meister
- Regensburg Center for Biochemistry, Laboratory of RNA Biology, University of Regensburg, Regensburg, Germany
| | - Inga D Neumann
- Department of Behavioral and Molecular Neurobiology, University of Regensburg, Regensburg, Germany.
| | - Rohit Menon
- Department of Behavioral and Molecular Neurobiology, University of Regensburg, Regensburg, Germany
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4
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Kuzniewska B, Rejmak K, Nowacka A, Ziółkowska M, Milek J, Magnowska M, Gruchota J, Gewartowska O, Borsuk E, Salamian A, Dziembowski A, Radwanska K, Dziembowska M. Disrupting interaction between miR-132 and Mmp9 3'UTR improves synaptic plasticity and memory in mice. Front Mol Neurosci 2022; 15:924534. [PMID: 35992198 PMCID: PMC9389266 DOI: 10.3389/fnmol.2022.924534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/18/2022] [Indexed: 11/15/2022] Open
Abstract
As microRNAs have emerged to be important regulators of molecular events occurring at the synapses, the new questions about their regulatory effect on the behavior have araised. In the present study, we show for the first time that the dysregulated specific targeting of miR132 to Mmp9 mRNA in the mouse brain results in the increased level of Mmp9 protein, which affects synaptic plasticity and has an effect on memory formation. Our data points at the importance of complex and precise regulation of the Mmp9 level by miR132 in the brain.
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Affiliation(s)
- Bozena Kuzniewska
- Laboratory of Molecular Basis of Synaptic Plasticity, Centre of New Technologies, University of Warsaw, Warsaw, Poland
| | - Karolina Rejmak
- Laboratory of Molecular Basis of Synaptic Plasticity, Centre of New Technologies, University of Warsaw, Warsaw, Poland
| | - Agata Nowacka
- Laboratory of Molecular Basis of Behavior, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Magdalena Ziółkowska
- Laboratory of Molecular Basis of Behavior, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Jacek Milek
- Laboratory of Molecular Basis of Synaptic Plasticity, Centre of New Technologies, University of Warsaw, Warsaw, Poland
| | - Marta Magnowska
- Laboratory of Molecular Basis of Synaptic Plasticity, Centre of New Technologies, University of Warsaw, Warsaw, Poland
| | - Jakub Gruchota
- Laboratory of RNA Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Olga Gewartowska
- Laboratory of RNA Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Ewa Borsuk
- Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Ahmad Salamian
- Laboratory of Molecular Basis of Behavior, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Andrzej Dziembowski
- Laboratory of RNA Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
- Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Kasia Radwanska
- Laboratory of Molecular Basis of Behavior, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Magdalena Dziembowska
- Laboratory of Molecular Basis of Synaptic Plasticity, Centre of New Technologies, University of Warsaw, Warsaw, Poland
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5
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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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6
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Horvath PM, Piazza MK, Kavalali ET, Monteggia LM. MeCP2 loss-of-function dysregulates microRNAs regionally and disrupts excitatory/inhibitory synaptic transmission balance. Hippocampus 2022; 32:610-623. [PMID: 35851733 PMCID: PMC9344394 DOI: 10.1002/hipo.23455] [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: 07/19/2021] [Revised: 06/11/2022] [Accepted: 06/25/2022] [Indexed: 11/06/2022]
Abstract
Rett syndrome is a leading cause of intellectual disability in females primarily caused by loss of function mutations in the transcriptional regulator MeCP2. Loss of MeCP2 leads to a host of synaptic phenotypes that are believed to underlie Rett syndrome pathophysiology. Synaptic deficits vary by brain region upon MeCP2 loss, suggesting distinct molecular alterations leading to disparate synaptic outcomes. In this study, we examined the contribution of MeCP2's newly described role in miRNA regulation to regional molecular and synaptic impairments. Two miRNAs, miR-101a and miR-203, were identified and confirmed as upregulated in MeCP2 KO mice in the hippocampus and cortex, respectively. miR-101a overexpression in hippocampal cultures led to opposing effects at excitatory and inhibitory synapses and in spontaneous and evoked neurotransmission, revealing the potential for a single miRNA to broadly regulate synapse function in the hippocampus. These results highlight the importance of regional alterations in miRNA expression and the specific impact on synaptic function with potential implications for Rett syndrome.
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Affiliation(s)
- Patricia M. Horvath
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee, USA,Department of Neuroscience, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Michelle K. Piazza
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee, USA,Neuroscience Program, Vanderbilt University, Nashville, Tennessee, USA
| | - Ege T. Kavalali
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee, USA,Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee, USA
| | - Lisa M. Monteggia
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee, USA,Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee, USA
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Babaei P, Azari HB. Exercise Training Improves Memory Performance in Older Adults: A Narrative Review of Evidence and Possible Mechanisms. Front Hum Neurosci 2022; 15:771553. [PMID: 35153701 PMCID: PMC8829997 DOI: 10.3389/fnhum.2021.771553] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 12/16/2021] [Indexed: 12/15/2022] Open
Abstract
Graphical AbstractExercise, neurotransmitters, growth factors, myokines, and potential effects on the brain.
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Affiliation(s)
- Parvin Babaei
- Neuroscience Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
- Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
- Department of Physiology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
- *Correspondence: Parvin Babaei,
| | - Helya Bolouki Azari
- Neuroscience Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
- Department of Physiology, Tehran University of Medical Sciences, Tehran, Iran
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8
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Thomas KT, Zakharenko SS. MicroRNAs in the Onset of Schizophrenia. Cells 2021; 10:2679. [PMID: 34685659 PMCID: PMC8534348 DOI: 10.3390/cells10102679] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/30/2021] [Accepted: 10/02/2021] [Indexed: 12/14/2022] Open
Abstract
Mounting evidence implicates microRNAs (miRNAs) in the pathology of schizophrenia. These small noncoding RNAs bind to mRNAs containing complementary sequences and promote their degradation and/or inhibit protein synthesis. A single miRNA may have hundreds of targets, and miRNA targets are overrepresented among schizophrenia-risk genes. Although schizophrenia is a neurodevelopmental disorder, symptoms usually do not appear until adolescence, and most patients do not receive a schizophrenia diagnosis until late adolescence or early adulthood. However, few studies have examined miRNAs during this critical period. First, we examine evidence that the miRNA pathway is dynamic throughout adolescence and adulthood and that miRNAs regulate processes critical to late neurodevelopment that are aberrant in patients with schizophrenia. Next, we examine evidence implicating miRNAs in the conversion to psychosis, including a schizophrenia-associated single nucleotide polymorphism in MIR137HG that is among the strongest known predictors of age of onset in patients with schizophrenia. Finally, we examine how hemizygosity for DGCR8, which encodes an obligate component of the complex that synthesizes miRNA precursors, may contribute to the onset of psychosis in patients with 22q11.2 microdeletions and how animal models of this disorder can help us understand the many roles of miRNAs in the onset of schizophrenia.
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Affiliation(s)
- Kristen T. Thomas
- Department of Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Stanislav S. Zakharenko
- Department of Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
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9
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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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10
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Ehlers VL, Smies CW, Moyer JR. Apoaequorin differentially modulates fear memory in adult and aged rats. Brain Behav 2020; 10:e01832. [PMID: 32945630 PMCID: PMC7667302 DOI: 10.1002/brb3.1832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/11/2020] [Accepted: 08/18/2020] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Cognitive deficits during aging are pervasive across species and learning paradigms. One of the major mechanisms thought to play a role in age-related memory decline is dysregulated calcium (Ca2+ ) homeostasis. Aging is associated with impaired function of several calcium-regulatory mechanisms, including calcium-binding proteins that normally support intracellular Ca2+ regulation. This age-related calcium-binding protein dysfunction and changes in expression lead to disrupted maintenance of intracellular Ca2+ , thus contributing to memory decline. Other work has found that age-related cognitive deficits can be mitigated by either blocking Ca2+ entry into the cytosol or preventing its release from intracellular Ca2+ stores. However, the effect of calcium-binding protein administration on cognitive function during aging is not well-understood. Our laboratory has previously shown that the calcium-binding protein apoaequorin (AQ) is neuroprotective during oxygen-glucose deprivation, a model of in vitro ischemia characterized by calcium-induced excitotoxicity. The current experiments assessed the effect of direct dorsal hippocampal AQ infusion on trace and context fear memory in adult and aged rats. METHODS Adult (3-6 months) and aged (22-26 months) male F344 rats were randomly assigned to different experimental infusion groups before undergoing trace fear conditioning and testing. In experiment 1, rats received bilateral dorsal hippocampal infusions of either vehicle or AQ (4% w/v) 24 hr before trace fear conditioning. In experiment 2, rats received bilateral dorsal hippocampal infusions of either vehicle or 4% AQ 1 hr before trace fear conditioning and 1 hr before testing. RESULTS Aged rats displayed impaired trace and context fear memory. While a single AQ infusion 24 hr before trace fear conditioning was insufficient to rescue age-related trace fear memory deficits, AQ infusion 1 hr before both conditioning and testing abolished age-related context fear memory deficits. CONCLUSIONS These results suggest that intrahippocampal infusion of AQ may reverse aging-related deficits in hippocampus-dependent context fear memory.
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Affiliation(s)
- Vanessa L Ehlers
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Chad W Smies
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - James R Moyer
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.,Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
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11
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MicroRNAs as systemic biomarkers to assess distress in animal models for gastrointestinal diseases. Sci Rep 2020; 10:16931. [PMID: 33037288 PMCID: PMC7547723 DOI: 10.1038/s41598-020-73972-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 09/18/2020] [Indexed: 02/07/2023] Open
Abstract
Severity assessment of animal experiments is mainly conducted by using subjective parameters. A widely applicable biomarker to assess animal distress could contribute to an objective severity assessment in different animal models. Here, the distress of three murine animal models for gastrointestinal diseases was assessed by multiple behavioral and physiological parameters. To identify possible new biomarkers for distress 750 highly conserved microRNAs were measured in the blood plasma of mice before and after the induction of pancreatitis. Deregulated miRNA candidates were identified and further quantified in additional animal models for pancreatic cancer and cholestasis. MiR-375 and miR-203 were upregulated during pancreatitis and down regulated during cholestasis, whereas miR-132 was upregulated in all models. Correlation between miR-132 and plasma corticosterone concentrations resulted in the highest correlation coefficient, when compared to the analysis of miR-375, miR-203 and miR-30b. These results indicate that miR-132 might function as a general biomarker for distress, whereas the other miRNAs were altered in a disease specific manner. In conclusion, plasma miRNA profiling may help to better characterize the level of distress in mouse models for gastrointestinal diseases.
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12
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Liu G, Yin F, Zhang C, Zhang Y, Li X, Ling Y. Effects of regulating miR-132 mediated GSK-3β on learning and memory function in mice. Exp Ther Med 2020; 20:1191-1197. [PMID: 32742357 PMCID: PMC7388370 DOI: 10.3892/etm.2020.8768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 01/09/2020] [Indexed: 12/27/2022] Open
Abstract
The aimf of this study was to explore effects of miR-132 and glycogen synthase kinase-3β (GSK-3β) on learning and memory in mice. miR-132 inhibitor GSK-3β overexpression agent (sh-GSK-3β) and normal saline (negative control group) were injected into the hippocampus of adult mice, and healthy adult mice were taken as the unrelated control group. The expression of miR-132 and GSK-3β in the hippocampus of adult and elderly mice was detected using reverse transcription-quantitative PCR (RT-qPCR) and western blot analysis. Morris water maze test was employed to detect learning and memory function in mice. The dual luciferase reporter was adopted to determine the relationship between miR-132 and GSK-3β. Compared with the adult group, the expression of miR-132 was significantly downregulated in the hippocampus in the elderly group, while the expression of GSK-3β was upregulated. Injecting miR-132 inhibitor into the hippocampus of adult mice led to a significant increase in escape latency and a significant decrease in the number of times of crossing platforms. The injection of GSK-3β overexpression agent into the hippocampus of adult mice resulted in a marked increase in escape latency and a significant decrease in the number of times of crossing platforms in the water maze test. It was also found that downregulation of GSK-3β reversed the decline in learning and memory in mice caused by downregulation of miR-132 expression. The dual luciferase report identified a targeted regulatory relationship between miR-132 and GSK-3β. Overexpression of miR-132 can inhibit the expression of GSK-3β in mouse learning and memory ability, which provides some inspiration for understanding the occurrence of learning and memory disorders and future treatment methods.
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Affiliation(s)
- Gang Liu
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233003, P.R. China
| | - Fengwei Yin
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233003, P.R. China
| | - Congli Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233003, P.R. China
| | - Yang Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233003, P.R. China
| | - Xiaohong Li
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233003, P.R. China
| | - Yunzhi Ling
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233003, P.R. China
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13
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Mustafin RN, Kazantseva AV, Malykh SB, Khusnutdinova EK. Genetic Mechanisms of Cognitive Development. RUSS J GENET+ 2020. [DOI: 10.1134/s102279542007011x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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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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15
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Intracranial Self-Stimulation Modulates Levels of SIRT1 Protein and Neural Plasticity-Related microRNAs. Mol Neurobiol 2020; 57:2551-2562. [PMID: 32219698 DOI: 10.1007/s12035-020-01901-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 03/09/2020] [Indexed: 02/07/2023]
Abstract
Deep brain stimulation (DBS) of reward system brain areas, such as the medial forebrain bundle (MFB), by means of intracranial self-stimulation (ICSS), facilitates learning and memory in rodents. MFB-ICSS has been found capable of modifying different plasticity-related proteins, but its underlying molecular mechanisms require further elucidation. MicroRNAs (miRNAs) and the longevity-associated SIRT1 protein have emerged as important regulatory molecules implicated in neural plasticity. Thus, we aimed to analyze the effects of MFB-ICSS on miRNAs expression and SIRT1 protein levels in hippocampal subfields and serum. We used OpenArray to select miRNA candidates differentially expressed in the dentate gyrus (DG) of ICSS-treated (3 sessions, 45' session/day) and sham rats. We further analyzed the expression of these miRNAs, together with candidates selected after bibliographic screening (miR-132-3p, miR-134-5p, miR-146a-5p, miR-181c-5p) in DG, CA1, and CA3, as well as in serum, by qRT-PCR. We also assessed tissue and serum SIRT1 protein levels by Western Blot and ELISA, respectively. Expression of miR-132-3p, miR-181c-5p, miR-495-3p, and SIRT1 protein was upregulated in DG of ICSS rats (P < 0.05). None of the analyzed molecules was regulated in CA3, while miR-132-3p was also increased in CA1 (P = 0.011) and serum (P = 0.048). This work shows for the first time that a DBS procedure, specifically MFB-ICSS, modulates the levels of plasticity-related miRNAs and SIRT1 in specific hippocampal subfields. The mechanistic role of these molecules could be key to the improvement of memory by MFB-ICSS. Moreover, regarding the proposed clinical applicability of DBS, serum miR-132 is suggested as a potential treatment biomarker.
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16
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Yousuf H, Ehlers VL, Sehgal M, Song C, Moyer JR. Modulation of intrinsic excitability as a function of learning within the fear conditioning circuit. Neurobiol Learn Mem 2019; 167:107132. [PMID: 31821881 DOI: 10.1016/j.nlm.2019.107132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/27/2019] [Indexed: 11/28/2022]
Abstract
Experience-dependent neuronal plasticity is a fundamental substrate of learning and memory. Intrinsic excitability is a form of neuronal plasticity that can be altered by learning and indicates the pattern of neuronal responding to external stimuli (e.g. a learning or synaptic event). Associative fear conditioning is one form of learning that alters intrinsic excitability, reflecting an experience-dependent change in neuronal function. After fear conditioning, intrinsic excitability changes are evident in brain regions that are a critical part of the fear circuit, including the amygdala, hippocampus, retrosplenial cortex, and prefrontal cortex. Some of these changes are transient and/or reversed by extinction as well as learning-specific (i.e. they are not observed in neurons from control animals). This review will explore how intrinsic neuronal excitability changes within brain structures that are critical for fear learning, and it will also discuss evidence promoting intrinsic excitability as a vital mechanism of associative fear memories. This work has raised interesting questions regarding the role of fear learning in changes of intrinsic excitability within specific subpopulations of neurons, including those that express immediate early genes and thus demonstrate experience-dependent activity, as well as in neurons classified as having a specific firing type (e.g. burst-spiking vs. regular-spiking). These findings have interesting implications for how intrinsic excitability can serve as a neural substrate of learning and memory, and suggest that intrinsic plasticity within specific subpopulations of neurons may promote consolidation of the memory trace in a flexible and efficient manner.
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Affiliation(s)
- Hanna Yousuf
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
| | - Vanessa L Ehlers
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
| | - Megha Sehgal
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
| | - Chenghui Song
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
| | - James R Moyer
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA; Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA.
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17
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Ge QD, Xie C, Zhang H, Tan Y, Wan CW, Wang WJ, Jin TX. Differential Expression of miRNAs in the Hippocampi of Offspring Rats Exposed to Fluorine Combined with Aluminum during the Embryonic Stage and into Adulthood. Biol Trace Elem Res 2019; 189:463-477. [PMID: 30033483 DOI: 10.1007/s12011-018-1445-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/12/2018] [Indexed: 11/25/2022]
Abstract
A previous study from our team found that continuous exposure to fluorine combined with aluminum (FA) impaired the neurobehavioral reflexes, spatial learning, and memory of offspring rats. To date, the specific mechanisms for these changes are unclear. Here, high-throughput sequencing was utilized to analyze the microRNA (miRNA) profile of the hippocampi in the offspring of rats exposed to FA during the embryonic stage and into adulthood through tap water supplemented with NaF and AlCl3 at concentrations of (0, 0); (60, 600); (120, 600); and (240, 600) mg/L, respectively. qRT-PCR was performed to validate the reliability of the sequence data. Twenty differentially expressed miRNAs were selected for further analysis using bioinformatics tools. Several genes related to neuromodulation were found to be regulated by miR-10a-5p, miR-34b-5p, and miR-182, which might be harmful to normal nerve function. The protein levels of brain-derived neurotrophic factor (BDNF) and tyrosine receptor kinase B (TrkB) in hippocampus were markedly downregulated. These data suggest that miR-10a-5p, miR-34b-5p, and miR-182 and BDNF-TrkB signaling pathway are involved in mechanisms of hippocampal damage in the offspring of rats exposed to FA. HIGHLIGHTS: • Multiple miRNAs were significantly differentially expressed in offspring rat hippocampus after fluorine combined with aluminum (FA) exposure. • Twenty differentially expressed miRNAs might mediate FA-induced developmental neurotoxicity. • MiR-10a-5p, miR-34b-5p, and miR-182 were closely related to neurotoxic signaling of FA. • The BDNF-TrkB learning and memory-associated pathway was downregulated in the hippocampus after FA exposure.
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Affiliation(s)
- Qi-Di Ge
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Guizhou Medical University, University Town, Guian new district, Guiyang, 550025, Guizhou, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, Guizhou, China
| | - Chun Xie
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Guizhou Medical University, University Town, Guian new district, Guiyang, 550025, Guizhou, China.
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, Guizhou, China.
| | - Hua Zhang
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Guizhou Medical University, University Town, Guian new district, Guiyang, 550025, Guizhou, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, Guizhou, China
| | - Ying Tan
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Guizhou Medical University, University Town, Guian new district, Guiyang, 550025, Guizhou, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, Guizhou, China
| | - Chang-Wu Wan
- Department of Forensic Pathology, School of Forensic Medicine, Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Wen-Juan Wang
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Guizhou Medical University, University Town, Guian new district, Guiyang, 550025, Guizhou, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, Guizhou, China
| | - Ting-Xu Jin
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Guizhou Medical University, University Town, Guian new district, Guiyang, 550025, Guizhou, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, Guizhou, China
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18
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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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19
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Shedding light into memories under circadian rhythm system control. Proc Natl Acad Sci U S A 2019; 116:8099-8101. [PMID: 30910987 DOI: 10.1073/pnas.1903413116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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20
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Effects of post-learning REM sleep deprivation on hippocampal plasticity-related genes and microRNA in mice. Behav Brain Res 2018; 361:7-13. [PMID: 30594545 DOI: 10.1016/j.bbr.2018.12.045] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/22/2018] [Accepted: 12/26/2018] [Indexed: 11/20/2022]
Abstract
Sleep is essential for memory consolidation that stabilizes a memory trace. Memory consolidation includes waves of new gene expression and protein synthesis. Recently, microRNAs (miRNAs) have emerged as critical regulators of memory processes. Previous studies demonstrated that rapid eye movement (REM) sleep deprivation (REM SD) during specific time windows after training in the Morris water maze (MWM) task impairs memory consolidation. Here, we showed that the post-learning REM sleep, extending from 3 to 6 h after last training, is critical for spatial learning in the MWM task. Further, we found that the REM SD after training significantly changes the hippocampal expression of brain-derived neurotrophic factor (BDNF) mRNA; however, it causes minimal difference in the hippocampal expressions of calcium-calmodulin-dependent protein kinase II (CAMKII) and cAMP response-element-binding (CREB). In addition, it considerably affected the hippocampal expressions of miR-132, miR-182, and miR-124. In conclusion, after the MWM task, the post-learning REM sleep during specific time windows can modulate spatial memory consolidation, and its deprivation can impact the hippocampal transcriptional processes including memory-related miRNAs and mRNAs.
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21
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Ge QD, Tan Y, Luo Y, Wang WJ, Zhang H, Xie C. MiR-132, miR-204 and BDNF-TrkB signaling pathway may be involved in spatial learning and memory impairment of the offspring rats caused by fluorine and aluminum exposure during the embryonic stage and into adulthood. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 63:60-68. [PMID: 30172012 DOI: 10.1016/j.etap.2018.08.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 08/15/2018] [Indexed: 06/08/2023]
Abstract
Fluorine and aluminium are nervous system poisons, but it remains unclear whether combined fluorine and aluminium exposure damages spatial learning and memory and, if so, by what mechanism. This study showed that exposure to fluorine and aluminium, either alone or combined, during the embryonic stage and into adulthood caused spatial learning and memory impairment in offspring rats; its mechanism may be associated with increases in miR-132 and miR-204 expression and downregulation of the BDNF-TrkB pathway in the hippocampus. The effects of F were obvious, but the effects of Al were slight. There were antagonistic effects between F and Al, with Al reducing the toxicity of F.
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Affiliation(s)
- Qi-Di Ge
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, Guizhou, China
| | - Ying Tan
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, Guizhou, China
| | - Yu Luo
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, Guizhou, China
| | - Wen-Juan Wang
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, Guizhou, China
| | - Hua Zhang
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, Guizhou, China
| | - Chun Xie
- Department of Occupational Health and Environmental Hygiene, School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, Guizhou, China.
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22
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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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23
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Shen J, Xu L, Qu C, Sun H, Zhang J. Resveratrol prevents cognitive deficits induced by chronic unpredictable mild stress: Sirt1/miR-134 signalling pathway regulates CREB/BDNF expression in hippocampus in vivo and in vitro. Behav Brain Res 2018; 349:1-7. [DOI: 10.1016/j.bbr.2018.04.050] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/27/2018] [Accepted: 04/27/2018] [Indexed: 11/26/2022]
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24
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Noncoding RNAs: Stress, Glucocorticoids, and Posttraumatic Stress Disorder. Biol Psychiatry 2018; 83:849-865. [PMID: 29559087 DOI: 10.1016/j.biopsych.2018.01.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/07/2018] [Accepted: 01/08/2018] [Indexed: 12/12/2022]
Abstract
Posttraumatic stress disorder (PTSD) is a pathologic response to trauma that impacts ∼8% of the population and is highly comorbid with other disorders, such as traumatic brain injury. PTSD affects multiple biological systems throughout the body, including the hypothalamic-pituitary-adrenal axis, cortical function, and the immune system, and while the study of the biological underpinnings of PTSD and related disorders are numerous, the roles of noncoding RNAs (ncRNAs) are just emerging. Moreover, deep sequencing has revealed that ncRNAs represent most of the transcribed mammalian genome. Here, we present developing evidence that ncRNAs are involved in critical aspects of PTSD pathophysiology. In that regard, we summarize the roles of three classes of ncRNAs in PTSD and related disorders: microRNAs, long-noncoding RNAs, and retrotransposons. This review evaluates findings from both animal and human studies with a special focus on the role of ncRNAs in hypothalamic-pituitary-adrenal axis abnormalities and glucocorticoid dysfunction in PTSD and traumatic brain injury. We conclude that ncRNAs may prove to be useful biomarkers to facilitate personalized medicines for trauma-related brain disorders.
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25
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Blandford SN, Galloway DA, Moore CS. The roles of extracellular vesicle microRNAs in the central nervous system. Glia 2018; 66:2267-2278. [PMID: 29726599 DOI: 10.1002/glia.23445] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 01/08/2023]
Abstract
MicroRNAs (miRNAs) are small, highly conserved non-coding RNA molecules that post-transcriptionally regulate protein expression and most biological processes. Mature miRNAs are recruited to the RNA-induced silencing complex (RISC) and target mRNAs via complementary base-pairing, thus resulting in translational inhibition and/or transcript degradation. Here, we present evidence implicating miRNAs within extracellular vesicles (EVs), including microvesicles and exosomes, as mediators of central nervous system (CNS) development, homeostasis, and injury. EVs are extracellular vesicles that are secreted by all cells and represent a novel method of intercellular communication. In glial cells, the transfer of miRNAs via EVs can alter the function of recipient cells and significantly impacts cellular mechanisms involved in both injury and repair. This review discusses the value of information to be gained by studying miRNAs within EVs in the context of CNS diseases and their potential use in the development of novel disease biomarkers and therapeutic strategies.
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Affiliation(s)
| | - Dylan A Galloway
- Memorial University of Newfoundland, St John's, Newfoundland, Canada
| | - Craig S Moore
- Memorial University of Newfoundland, St John's, Newfoundland, Canada
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26
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Zhao H, Wang S, Guo L, Du Y, Liu L, Ma T, Otecko NO, Li C, Zhang Y. Fixed differences in the 3'UTR of buffalo PRNP gene provide binding sites for miRNAs post-transcriptional regulation. Oncotarget 2018; 8:46006-46019. [PMID: 28545018 PMCID: PMC5542244 DOI: 10.18632/oncotarget.17545] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/30/2017] [Indexed: 01/27/2023] Open
Abstract
Bovine spongiform encephalopathy, a member of transmissible spongiform encephalopathies, has not been reported in buffaloes, Bubalus bubalis. Prion protein (PrP), encoded by the prion protein gene (PRNP), is fundamental in the pathogenesis of transmissible spongiform encephalopathies. We previously showed that buffaloes express more PrP proteins but lower PRNP mRNA than cattle in several pivotal tissues like the obex. Therefore, we sought to establish whether genetic variability in PRNP 3'UTR, mediated by miRNA down-regulation, causes PrP expression differences between cattle and buffaloes. We annotated the 3'UTR of buffalo PRNP gene by 3'RACE experiment. A total of 92 fixed differences in the complete 3'UTR (~ 3 kb) were identified between 13 cattle and 13 buffaloes. Resequencing of UTR-C (g.786-1436) and UTR-B (g.778-1456) fragments confirmed that all mutations except g.1022T in cattle are fixed differences between 147 cattle and 146 buffaloes. In addition, analysis of the variation of ΔG between cattle and buffalo sequences reveals four remarkable differences. Two buffalo-specific insertion sites (a 28-bp insertion and an AG insertion in buffalo 3'UTR of PRNP g.970-997 and g. 1088-1089, respectively) and two mutants (g. 1007-1008 TG→CC) create compatible binding sites for miRNAs in buffalo 3'UTR. This was validated through luciferase reporter assays which demonstrated that miR-125b-5p, miR-132-3p, miR-145-5p, miR-331-3p, and miR-338-3p directly act on the fixed difference sites in buffalo 3'UTR. Additional expressional analyses show that these five miRNAs are coexpressed with PRNP in bovine obex tissues. Our study reveals a miRNAs regulated mechanism explaining the differences in prion expression between cattle and buffalo.
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Affiliation(s)
- Hui Zhao
- State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, P.R. China.,Key Laboratory for Animal Genetic Diversity and Evolution of High Education in Yunnan Province, Yunnan University, Kunming 650091, P.R. China
| | - Siqi Wang
- State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, P.R. China.,School of Life Science, Yunnan University, Kunming 650091, P.R. China
| | - Lixia Guo
- State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, P.R. China.,School of Life Science, Yunnan University, Kunming 650091, P.R. China
| | - Yanli Du
- State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, P.R. China.,School of Life Science, Yunnan University, Kunming 650091, P.R. China
| | - Linlin Liu
- State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, P.R. China.,School of Life Science, Yunnan University, Kunming 650091, P.R. China
| | - Tengfei Ma
- State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, P.R. China.,School of Life Science, Yunnan University, Kunming 650091, P.R. China
| | - Newton O Otecko
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, P.R. China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, P.R. China
| | - Canpeng Li
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
| | - Yaping Zhang
- State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, P.R. China.,State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, P.R. China
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27
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Ji Y, Wang D, Liu Y, Ma X, Lu H, Zhang B. Retracted
: MicroRNA‐132 attenuates LPS‐induced inflammatory injury by targeting TRAF6 in neuronal cell line HT‐22. J Cell Biochem 2018; 119:5528-5537. [DOI: 10.1002/jcb.26720] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 01/24/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Yang‐Fei Ji
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Dan Wang
- Department of CardiologyZhengzhou Central HospitalZhengzhouChina
| | - Yan‐Ru Liu
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Xing‐Rong Ma
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Hong Lu
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Bo‐Ai Zhang
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
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28
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Cao T, Zhen XC. Dysregulation of miRNA and its potential therapeutic application in schizophrenia. CNS Neurosci Ther 2018. [PMID: 29529357 DOI: 10.1111/cns.12840] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Although it is generally believed that genetic and developmental factors play critical roles in pathogenesis of schizophrenia, however, the precise etiological mechanism of schizophrenia remains largely unknown. Over past decades, miRNAs have emerged as an essential post-transcriptional regulator in gene expression regulation. The importance of miRNA in brain development and neuroplasticity has been well-established. Abnormal expression and dysfunction of miRNAs are known to involve in the pathophysiology of many neuropsychiatric diseases including schizophrenia. In this review, we summarized the recent findings in the schizophrenia-associated dysregulation of miRNA and functional roles in the development and pathogenesis of schizophrenia. We also discussed the potential therapeutic implications of miRNA regulation in the illness.
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Affiliation(s)
- Ting Cao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou, China.,The Collaborative Innovation Center for Brain Science, Soochow University, Suzhou, China
| | - Xue-Chu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou, China.,The Collaborative Innovation Center for Brain Science, Soochow University, Suzhou, China
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29
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Murphy CP, Singewald N. Potential of microRNAs as novel targets in the alleviation of pathological fear. GENES BRAIN AND BEHAVIOR 2017; 17:e12427. [DOI: 10.1111/gbb.12427] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/20/2017] [Accepted: 10/05/2017] [Indexed: 12/16/2022]
Affiliation(s)
- C. P. Murphy
- Department of Pharmacology and Toxicology, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck; University of Innsbruck; Innsbruck Austria
| | - N. Singewald
- Department of Pharmacology and Toxicology, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck; University of Innsbruck; Innsbruck Austria
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30
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Qian Y, Song J, Ouyang Y, Han Q, Chen W, Zhao X, Xie Y, Chen Y, Yuan W, Fan C. Advances in Roles of miR-132 in the Nervous System. Front Pharmacol 2017; 8:770. [PMID: 29118714 PMCID: PMC5660991 DOI: 10.3389/fphar.2017.00770] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 10/12/2017] [Indexed: 12/24/2022] Open
Abstract
miR-132 is an endogenous small RNA and controls post-transcriptional regulation of gene expression via controlled degradation of mRNA or transcription inhibition. In the nervous system, miR-132 is significant for regulating neuronal differentiation, maturation and functioning, and widely participates in axon growth, neural migration, and plasticity. The miR-132 is affected by factors like mRNA expression, functional redundancy, and signaling cascades. It targets multiple downstream molecules to influence physiological and pathological neuronal activities. MiR-132 can influence the pathogenesis of many diseases, especially in the nervous system. The dysregulation of miR-132 results in the occurrence and exacerbation of neural developmental, degenerative diseases, like Alzheimer’s disease, Parkinson’s disease and epilepsy, neural infection and psychiatric disorders including disturbance of consciousness, cognition and memory, depression and schizophrenia. Regulation of miR-132 expression relieves symptoms, alleviates severity and finally effects a cure. This review aims to discuss the clinical potentials of miR-132 in the nervous system.
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Affiliation(s)
- Yun Qian
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Sixth People's Hospital East Campus, Shanghai University of Medicine and Health, Shanghai, China
| | - Jialin Song
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Sixth People's Hospital East Campus, Shanghai University of Medicine and Health, Shanghai, China
| | - Yuanming Ouyang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Sixth People's Hospital East Campus, Shanghai University of Medicine and Health, Shanghai, China
| | - Qixin Han
- Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Chen
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Sixth People's Hospital East Campus, Shanghai University of Medicine and Health, Shanghai, China
| | - Xiaotian Zhao
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yangmei Xie
- Department of Neurology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Yinghui Chen
- Department of Neurology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Weien Yuan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Cunyi Fan
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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31
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Salta E, De Strooper B. microRNA-132: a key noncoding RNA operating in the cellular phase of Alzheimer's disease. FASEB J 2017; 31:424-433. [PMID: 28148775 DOI: 10.1096/fj.201601308] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 12/12/2016] [Indexed: 12/20/2022]
Abstract
With the consideration of the broad involvement of microRNAs (miRNAs) in the regulation of molecular networks in the brain, it is not surprising that miRNA dysregulation causes neurodegeneration in animal models. miRNA profiling in the human brain has revealed miR-132 as one of the most severely down-regulated miRNAs at the intermediate and late Braak stages of Alzheimer's disease (AD), as well as in other neurodegenerative disorders. Suppression of miR-132 aggravates multiple layers of pathology at the molecular and functional level. We describe the potential therapeutic implications of these findings and suggest miRNA targeting or replacement as a realistic multi-hit, therapeutic strategy for AD. Salta, E., De Strooper, B. microRNA-132: a key noncoding RNA operating in the cellular phase of Alzheimer's disease.
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Affiliation(s)
- Evgenia Salta
- Vlaams Instituut voor Biotechnologie (VIB) Center for Brain and Disease, VIB-Leuven, Leuven, Belgium; .,Center for Human Genetics, Universitaire Ziekenhuizen and Leuven Research Institute for Neuroscience and Disease, KU-Leuven, Leuven, Belgium; and
| | - Bart De Strooper
- Vlaams Instituut voor Biotechnologie (VIB) Center for Brain and Disease, VIB-Leuven, Leuven, Belgium; .,Center for Human Genetics, Universitaire Ziekenhuizen and Leuven Research Institute for Neuroscience and Disease, KU-Leuven, Leuven, Belgium; and.,Institute of Neurology, University College London, London, United Kingdom
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32
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Michely J, Kraft S, Müller U. miR-12 and miR-124 contribute to defined early phases of long-lasting and transient memory. Sci Rep 2017; 7:7910. [PMID: 28801686 PMCID: PMC5554235 DOI: 10.1038/s41598-017-08486-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 07/11/2017] [Indexed: 11/17/2022] Open
Abstract
MicroRNAs (miRNAs) are important epigenetic regulators of mRNA translation implicated in long-lasting synaptic plasticity and long-term memory (LTM). Since recent findings demonstrated a role of epigenetic regulation of gene expression in early memory phases we investigated whether epigenetic regulation by miRNAs also contributes to early memory phases. We used the olfactory associative learning paradigm in honeybees and addressed the contribution of miRNAs depending on the conditioning strength. We selected miR-12, miR-124, and miR-125 that have been implicated in processes of neuronal plasticity and analysed their contribution to non-associative and associative learning using miRNA inhibitors. Blocking miR-12, miR-124, or miR125 neither affects gustatory sensitivity nor habituation nor sensitization. Blocking the function of miR-12 and miR-124 during and shortly after 3-trial conditioning impairs different early memory phases. Although different, the function of miR-12 and miR-124 is also required for early phases of transient memory that is induced by 1-trial conditioning. Blocking miR-125 has no effect on early memory independent of the conditioning strength. These findings demonstrate that distinct miRNAs contribute to early phases of both, transient memories as well as long-lasting memories.
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Affiliation(s)
- Julia Michely
- Biosciences Zoology/Physiology-Neurobiology, ZHMB (Center of Human and Molecular Biology) Faculty NT - Natural Science and Technology, Saarland University, D-66123, Saarbrücken, Germany
| | - Susanne Kraft
- Biosciences Zoology/Physiology-Neurobiology, ZHMB (Center of Human and Molecular Biology) Faculty NT - Natural Science and Technology, Saarland University, D-66123, Saarbrücken, Germany
| | - Uli Müller
- Biosciences Zoology/Physiology-Neurobiology, ZHMB (Center of Human and Molecular Biology) Faculty NT - Natural Science and Technology, Saarland University, D-66123, Saarbrücken, Germany.
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33
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Habibi P, Babri S, Ahmadiasl N, Yousefi H. Effects of genistein and swimming exercise on spatial memory and expression of microRNA 132, BDNF, and IGF-1 genes in the hippocampus of ovariectomized rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2017; 20:856-862. [PMID: 29085576 PMCID: PMC5651470 DOI: 10.22038/ijbms.2017.9106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 05/25/2017] [Indexed: 12/16/2022]
Abstract
OBJECTIVES The aim of the present study was to investigate the effects of genistein and exercise on the spatial memory and expression of microRNA-132, BDNF, and IGF-1 in the hippocampus of ovariectomized rats. MATERIALS AND METHODS Sixty animals were divided into six groups of control, sham, ovariectomy (OVX), ovariectomized with 8 weeks of genistein administration (OVX.G), with 8 weeks of swimming training (OVX.E), and with 8 weeks of both of them (OVX.G.E). The effect of genistein and/or exercise was evaluated by measuring microRNA-132, BDNF, and IGF-1 expression levels in the hippocampus tissue. Grafts were analyzed using Real-time polymerase chain reaction for microRNA-132, BDNF, IGF-1, and spatial memory via a Morris water maze (MWM). RESULTS Our findings showed that ovariectomy decreased the expression of microRNA-132, BDNF, and IGF-1 in the hippocampus (P<0.05) in comparison with the sham group as well as performance in the water maze (P<0.05). Also according to results ovariectomized groups that were treated with genistein/exercise or both of them showed significant difference in expression of microRNA-132, BDNF, and IGF-1 in the hippocampus (P<0.05) and decreased latency in MWM (P<0.05) compared with the OVX group but combination treatment was more effective in the OVX.G.E group in comparison with OVX.E and OVX.G groups. CONCLUSION Overall our results emphasized that combination treatment with genistein and exercise could improve microRNA-132, BDNF, and IGF-1 expression in the hippocampus as well as the spatial memory of ovariectomized rats. These effects may have beneficial impacts on the menopausal period.
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Affiliation(s)
- Parisa Habibi
- Neuroscience Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shirin Babri
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasser Ahmadiasl
- Neuroscience Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Yousefi
- Neuroscience Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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34
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Dirven BCJ, Homberg JR, Kozicz T, Henckens MJAG. Epigenetic programming of the neuroendocrine stress response by adult life stress. J Mol Endocrinol 2017; 59:R11-R31. [PMID: 28400482 DOI: 10.1530/jme-17-0019] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 03/17/2017] [Indexed: 12/11/2022]
Abstract
The hypothalamic-pituitary-adrenal (HPA) axis is critically involved in the neuroendocrine regulation of stress adaptation, and the restoration of homeostasis following stress exposure. Dysregulation of this axis is associated with stress-related pathologies like major depressive disorder, post-traumatic stress disorder, panic disorder and chronic anxiety. It has long been understood that stress during early life can have a significant lasting influence on the development of the neuroendocrine system and its neural regulators, partially by modifying epigenetic regulation of gene expression, with implications for health and well-being in later life. Evidence is accumulating that epigenetic plasticity also extends to adulthood, proposing it as a mechanism by which psychological trauma later in life can long-lastingly affect HPA axis function, brain plasticity, neuronal function and behavioural adaptation to neuropsychological stress. Further corroborating this claim is the phenomenon that these epigenetic changes correlate with the behavioural consequences of trauma exposure. Thereby, epigenetic modifications provide a putative molecular mechanism by which the behavioural phenotype and transcriptional/translational potential of genes involved in HPA axis regulation can change drastically in response to environmental challenges, and appear an important target for treatment of stress-related disorders. However, improved insight is required to increase their therapeutic (drug) potential. Here, we provide an overview of the growing body of literature describing the epigenetic modulation of the (primarily neuroendocrine) stress response as a consequence of adult life stress and interpret the implications for, and the challenges involved in applying this knowledge to, the identification and treatment of stress-related psychiatric disorders.
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MESH Headings
- Animals
- Anxiety/genetics
- Anxiety/metabolism
- Anxiety/physiopathology
- Brain/metabolism
- Brain/physiopathology
- DNA Methylation
- Depressive Disorder, Major/genetics
- Depressive Disorder, Major/metabolism
- Depressive Disorder, Major/physiopathology
- Epigenesis, Genetic
- Histones/genetics
- Histones/metabolism
- Homeostasis
- Humans
- Hypothalamo-Hypophyseal System/metabolism
- Hypothalamo-Hypophyseal System/physiopathology
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Neurons/metabolism
- Neurons/pathology
- Neurotransmitter Agents/metabolism
- Pituitary-Adrenal System/metabolism
- Pituitary-Adrenal System/physiopathology
- Receptors, Glucocorticoid/genetics
- Receptors, Glucocorticoid/metabolism
- Receptors, Mineralocorticoid/genetics
- Receptors, Mineralocorticoid/metabolism
- Stress, Psychological/genetics
- Stress, Psychological/metabolism
- Stress, Psychological/physiopathology
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Affiliation(s)
- B C J Dirven
- Department of AnatomyDonders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
- Department of Cognitive NeuroscienceDonders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - J R Homberg
- Department of Cognitive NeuroscienceDonders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - T Kozicz
- Department of AnatomyDonders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - M J A G Henckens
- Department of Cognitive NeuroscienceDonders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
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35
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Fernandes J, Arida RM, Gomez-Pinilla F. Physical exercise as an epigenetic modulator of brain plasticity and cognition. Neurosci Biobehav Rev 2017; 80:443-456. [PMID: 28666827 DOI: 10.1016/j.neubiorev.2017.06.012] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/18/2017] [Accepted: 06/26/2017] [Indexed: 02/08/2023]
Abstract
A large amount of evidence has demonstrated the power of exercise to support cognitive function, the effects of which can last for considerable time. An emerging line of scientific evidence indicates that the effects of exercise are longer lasting than previously thought up to the point to affect future generations. The action of exercise on epigenetic regulation of gene expression seem central to building an "epigenetic memory" to influence long-term brain function and behavior. In this review article, we discuss new developments in the epigenetic field connecting exercise with changes in cognitive function, including DNA methylation, histone modifications and microRNAs (miRNAs). The understanding of how exercise promotes long-term cognitive effects is crucial for directing the power of exercise to reduce the burden of neurological and psychiatric disorders.
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Affiliation(s)
- Jansen Fernandes
- Department of Integrative Biology and Physiology, University of California, Los Angeles, CA 90095, USA; Department of Physiology-Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Ricardo Mario Arida
- Department of Physiology-Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Fernando Gomez-Pinilla
- Department of Integrative Biology and Physiology, University of California, Los Angeles, CA 90095, USA; Department of Neurosurgery, UCLA Brain Injury Research Center, University of California, Los Angeles, CA 90095, USA.
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36
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MicroRNAs underlying memory deficits in neurodegenerative disorders. Prog Neuropsychopharmacol Biol Psychiatry 2017; 73:79-86. [PMID: 27117821 DOI: 10.1016/j.pnpbp.2016.04.011] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/01/2016] [Accepted: 04/22/2016] [Indexed: 11/23/2022]
Abstract
Neurodegenerative disorders are defined by neuronal loss and often associated with dementia. Understanding the multifactorial nature of cognitive decline is of particular interest. Cell loss is certainly a possibility but also an early imbalance in the complex gene networks involved in learning and memory. The small (~22nt) non-coding microRNAs play a major role in gene expression regulation and have been linked to neuronal survival and cognition. Interestingly, changes in microRNA signatures are associated with neurodegenerative disorders. In this review, we explore the role of three microRNAs, namely miR-132, miR-124 and miR-34, which are dysregulated in major neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and Huntington's disease. Interestingly, these microRNAs have been associated with both memory impairment and neuronal survival, providing a potential common molecular mechanism contributing to dementia.
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37
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Giridharan VV, Thandavarayan RA, Fries GR, Walss-Bass C, Barichello T, Justice NJ, Reddy MK, Quevedo J. Newer insights into the role of miRNA a tiny genetic tool in psychiatric disorders: focus on post-traumatic stress disorder. Transl Psychiatry 2016; 6:e954. [PMID: 27845777 PMCID: PMC5314131 DOI: 10.1038/tp.2016.220] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/10/2016] [Accepted: 09/20/2016] [Indexed: 01/31/2023] Open
Abstract
Post-traumatic stress disorder (PTSD) is a mental disorder occurring in about 2-9% of individuals after their exposure to life-threatening events, such as severe accidents, sexual abuse, combat or a natural catastrophe. Because PTSD patients are exposed to trauma, it is likely that epigenetic modifications have an important role in disease development and prognosis. For the past two decades, abnormal expression of the epigenetic regulators microRNAs (miRs) and miR-mediated gene regulation have been given importance in a variety of human diseases, such as cancer, heart disease and viral infection. Emerging evidence supports a role for miR dysregulation in psychiatric and neurological disorders, including schizophrenia, bipolar disorder, anxiety, major depressive disorder, autism spectrum disorder and Tourette's syndrome. Recently mounting of evidence supports the role of miR both in preclinical and clinical settings of psychiatric disorders. Abnormalities in miR expression can fine-tune the expression of multiple genes within a biological network, suggesting that miR dysregulation may underlie many of the molecular changes observed in PTSD pathogenesis. This provides strong evidence that miR not only has a critical role in PTSD pathogenesis, but can also open up new avenues for the development of diagnostic tools and therapeutic targets for the PTSD phenotype. In this review, we revisit some of the recent evidence associated with miR and PTSD in preclinical and clinical settings. We also discuss the possible clinical applications and future use of miRs in PTSD therapy.
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Affiliation(s)
- V V Giridharan
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - R A Thandavarayan
- Department of Cardiovascular Sciences, Centre for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
| | - G R Fries
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - C Walss-Bass
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - T Barichello
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA,Neuroscience Graduate Program, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA
| | - N J Justice
- Neuroscience Graduate Program, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA,Center for Metabolic and Degenerative Diseases, Institute of Molecular Medicine, The University of Texas Health Sciences Center, Houston, TX, USA
| | - M K Reddy
- Clinical and Translational Research Program on Traumatic Stress, Department of Psychiatry and Behavioral Sciences, Mc Govern Medical School, Houston, TX, USA,Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - J Quevedo
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA,Neuroscience Graduate Program, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA,Laboratory of Neurosciences, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Brazil,Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, 1941, East Road, Houston, TX 77054, USA. E-mail:
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Cao DD, Li L, Chan WY. MicroRNAs: Key Regulators in the Central Nervous System and Their Implication in Neurological Diseases. Int J Mol Sci 2016; 17:E842. [PMID: 27240359 PMCID: PMC4926376 DOI: 10.3390/ijms17060842] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 05/20/2016] [Accepted: 05/23/2016] [Indexed: 01/03/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of small, well-conserved noncoding RNAs that regulate gene expression post-transcriptionally. They have been demonstrated to regulate a lot of biological pathways and cellular functions. Many miRNAs are dynamically regulated during central nervous system (CNS) development and are spatially expressed in adult brain indicating their essential roles in neural development and function. In addition, accumulating evidence strongly suggests that dysfunction of miRNAs contributes to neurological diseases. These observations, together with their gene regulation property, implicated miRNAs to be the key regulators in the complex genetic network of the CNS. In this review, we first focus on the ways through which miRNAs exert the regulatory function and how miRNAs are regulated in the CNS. We then summarize recent findings that highlight the versatile roles of miRNAs in normal CNS physiology and their association with several types of neurological diseases. Subsequently we discuss the limitations of miRNAs research based on current studies as well as the potential therapeutic applications and challenges of miRNAs in neurological disorders. We endeavor to provide an updated description of the regulatory roles of miRNAs in normal CNS functions and pathogenesis of neurological diseases.
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Affiliation(s)
- Dan-Dan Cao
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong-Chinese Academy of Sciences Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, SAR, China.
| | - Lu Li
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong-Chinese Academy of Sciences Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, SAR, China.
| | - Wai-Yee Chan
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong-Chinese Academy of Sciences Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, SAR, China.
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Cattani AA, Allene C, Seifert V, Rosenow F, Henshall DC, Freiman TM. Involvement of microRNAs in epileptogenesis. Epilepsia 2016; 57:1015-26. [PMID: 27207608 DOI: 10.1111/epi.13404] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2016] [Indexed: 12/12/2022]
Abstract
Patients who have sustained brain injury or had developmental brain lesions present a non-negligible risk for developing delayed epilepsy. Finding therapeutic strategies to prevent development of epilepsy in at-risk patients represents a crucial medical challenge. Noncoding microRNA molecules (miRNAs) are promising candidates in this area. Indeed, deregulation of diverse brain-specific miRNAs has been observed in animal models of epilepsy as well as in patients with epilepsy, mostly in temporal lobe epilepsy (TLE). Herein we review deregulated miRNAs reported in epilepsy with potential roles in key molecular and cellular processes underlying epileptogenesis, namely neuroinflammation, cell proliferation and differentiation, migration, apoptosis, and synaptic remodeling. We provide an up-to-date listing of miRNAs altered in epileptogenesis and assess recent functional studies that have interrogated their role in epilepsy. Last, we discuss potential applications of these findings for the future development of disease-modifying therapeutic strategies for antiepileptogenesis.
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Affiliation(s)
| | | | - Volker Seifert
- Department of Neurosurgery, Goethe University, Frankfurt, Germany
| | - Felix Rosenow
- Department of Epileptology, Goethe-University, Frankfurt, Germany
| | - David C Henshall
- Physiology & Medical Physics Department, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Thomas M Freiman
- Department of Neurosurgery, Goethe University, Frankfurt, Germany
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Lykhmus O, Mishra N, Koval L, Kalashnyk O, Gergalova G, Uspenska K, Komisarenko S, Soreq H, Skok M. Molecular Mechanisms Regulating LPS-Induced Inflammation in the Brain. Front Mol Neurosci 2016; 9:19. [PMID: 27013966 PMCID: PMC4781876 DOI: 10.3389/fnmol.2016.00019] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 02/23/2016] [Indexed: 01/08/2023] Open
Abstract
Neuro-inflammation, one of the pathogenic causes of neurodegenerative diseases, is regulated through the cholinergic anti-inflammatory pathway via the α7 nicotinic acetylcholine receptor (α7 nAChR). We previously showed that either bacterial lipopolysaccharide (LPS) or immunization with the α7(1-208) nAChR fragment decrease α7 nAChRs density in the mouse brain, exacerbating chronic inflammation, beta-amyloid accumulation and episodic memory decline, which mimic the early stages of Alzheimer's disease (AD). To study the molecular mechanisms underlying the LPS and antibody effects in the brain, we employed an in vivo model of acute LPS-induced inflammation and an in vitro model of cultured glioblastoma U373 cells. Here, we report that LPS challenge decreased the levels of α7 nAChR RNA and protein and of acetylcholinesterase (AChE) RNA and activity in distinct mouse brain regions, sensitized brain mitochondria to the apoptogenic effect of Ca(2+) and modified brain microRNA profiles, including the cholinergic-regulatory CholinomiRs-132/212, in favor of anti-inflammatory and pro-apoptotic ones. Adding α7(1-208)-specific antibodies to the LPS challenge prevented elevation of both the anti-inflammatory and pro-apoptotic miRNAs while supporting the resistance of brain mitochondria to Ca(2+) and maintaining α7 nAChR/AChE decreases. In U373 cells, α7-specific antibodies and LPS both stimulated interleukin-6 production through the p38/Src-dependent pathway. Our findings demonstrate that acute LPS-induced inflammation induces the cholinergic anti-inflammatory pathway in the brain, that α7 nAChR down-regulation limits this pathway, and that α7-specific antibodies aggravate neuroinflammation by inducing the pro-inflammatory interleukin-6 and dampening anti-inflammatory miRNAs; however, these antibodies may protect brain mitochondria and decrease the levels of pro-apoptotic miRNAs, preventing LPS-induced neurodegeneration.
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Affiliation(s)
- Olena Lykhmus
- Laboratory of Cell Receptors Immunology, O. V. Palladin Institute of BiochemistryKyiv, Ukraine
| | - Nibha Mishra
- The Edmond and Lily Safra Center of Brain Science and The Alexander Silberman Institute of Life Sciences, The Hebrew University of JerusalemJerusalem, Israel
| | - Lyudmyla Koval
- Laboratory of Cell Receptors Immunology, O. V. Palladin Institute of BiochemistryKyiv, Ukraine
| | - Olena Kalashnyk
- Laboratory of Cell Receptors Immunology, O. V. Palladin Institute of BiochemistryKyiv, Ukraine
| | - Galyna Gergalova
- Laboratory of Cell Receptors Immunology, O. V. Palladin Institute of BiochemistryKyiv, Ukraine
| | - Kateryna Uspenska
- Laboratory of Cell Receptors Immunology, O. V. Palladin Institute of BiochemistryKyiv, Ukraine
| | - Serghiy Komisarenko
- Laboratory of Cell Receptors Immunology, O. V. Palladin Institute of BiochemistryKyiv, Ukraine
| | - Hermona Soreq
- The Edmond and Lily Safra Center of Brain Science and The Alexander Silberman Institute of Life Sciences, The Hebrew University of JerusalemJerusalem, Israel
| | - Maryna Skok
- Laboratory of Cell Receptors Immunology, O. V. Palladin Institute of BiochemistryKyiv, Ukraine
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Anderson DW, Mettil W, Schneider JS. Effects of low level lead exposure on associative learning and memory in the rat: Influences of sex and developmental timing of exposure. Toxicol Lett 2016; 246:57-64. [PMID: 26812500 DOI: 10.1016/j.toxlet.2016.01.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/23/2015] [Accepted: 01/18/2016] [Indexed: 12/20/2022]
Abstract
Lead (Pb) exposure during development impairs a variety of cognitive, behavioral and neurochemical processes resulting in deficits in learning, memory, attention, impulsivity and executive function. Numerous studies have attempted to model this effect of Pb in rodents, with the majority of studies focusing on hippocampus-associated spatial learning and memory processes. Using a different paradigm, trace fear conditioning, a process requiring coordinated integration of both the medial prefrontal cortex and the hippocampus, we have assessed the effects of Pb exposure on associative learning and memory. The present study examined both female and male long evans rats exposed to three environmentally relevant levels of Pb (150 ppm, 375 ppm and 750 ppm) during different developmental periods: perinatal (PERI; gestation-postnatal day 21), early postnatal (EPN; postnatal days 1-21) and late postnatal (LPN; postnatal days 1-55). Testing began at postnatal day 55 and consisted of a single day of acquisition training, and three post training time points (1, 2 and 10 days) to assess memory consolidation and recall. All animals, regardless of sex, developmental window or level of Pb-exposure, successfully acquired conditioned-unconditioned stimulus association during training. However, there were significant effects of Pb-exposure on consolidation and memory recall at days 1-10 post training. In females, EPN and LPN exposure to 150 ppm Pb (but not PERI exposure) significantly impaired recall. In contrast, only PERI 150 ppm and 750 ppm-exposed males had significant recall deficits. These data suggest a complex interaction between sex, developmental window of exposure and Pb-exposure level on consolidation and recall of associative memories.
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Affiliation(s)
- D W Anderson
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA.
| | - W Mettil
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - J S Schneider
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
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Hansen KF, Sakamoto K, Aten S, Snider KH, Loeser J, Hesse AM, Page CE, Pelz C, Arthur JSC, Impey S, Obrietan K. Targeted deletion of miR-132/-212 impairs memory and alters the hippocampal transcriptome. ACTA ACUST UNITED AC 2016; 23:61-71. [PMID: 26773099 PMCID: PMC4749831 DOI: 10.1101/lm.039578.115] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 11/18/2015] [Indexed: 12/17/2022]
Abstract
miR-132 and miR-212 are structurally related microRNAs that have been found to exert powerful modulatory effects within the central nervous system (CNS). Notably, these microRNAs are tandomly processed from the same noncoding transcript, and share a common seed sequence: thus it has been difficult to assess the distinct contribution of each microRNA to gene expression within the CNS. Here, we employed a combination of conditional knockout and transgenic mouse models to examine the contribution of the miR-132/-212 gene locus to learning and memory, and then to assess the distinct effects that each microRNA has on hippocampal gene expression. Using a conditional deletion approach, we show that miR-132/-212 double-knockout mice exhibit significant cognitive deficits in spatial memory, recognition memory, and in tests of novel object recognition. Next, we utilized transgenic miR-132 and miR-212 overexpression mouse lines and the miR-132/-212 double-knockout line to explore the distinct effects of these two miRNAs on the transcriptional profile of the hippocampus. Illumina sequencing revealed that miR-132/-212 deletion increased the expression of 1138 genes; Venn analysis showed that 96 of these genes were also downregulated in mice overexpressing miR-132. Of the 58 genes that were decreased in animals overexpressing miR-212, only four of them were also increased in the knockout line. Functional gene ontology analysis of downregulated genes revealed significant enrichment of genes related to synaptic transmission, neuronal proliferation, and morphogenesis, processes known for their roles in learning, and memory formation. These data, coupled with previous studies, firmly establish a role for the miR-132/-212 gene locus as a key regulator of cognitive capacity. Further, although miR-132 and miR-212 share a seed sequence, these data indicate that these miRNAs do not exhibit strongly overlapping mRNA targeting profiles, thus indicating that these two genes may function in a complex, nonredundant manner to shape the transcriptional profile of the CNS. The dysregulation of miR-132/-212 expression could contribute to signaling mechanisms that are involved in an array of cognitive disorders.
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Affiliation(s)
- Katelin F Hansen
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
| | - Kensuke Sakamoto
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
| | - Sydney Aten
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
| | - Kaitlin H Snider
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
| | - Jacob Loeser
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
| | - Andrea M Hesse
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
| | - Chloe E Page
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
| | - Carl Pelz
- Oregon Stem Cell Center, Oregon Health and Science University, Portland, Oregon 97239, USA
| | - J Simon C Arthur
- College of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom
| | - Soren Impey
- Oregon Stem Cell Center, Oregon Health and Science University, Portland, Oregon 97239, USA
| | - Karl Obrietan
- Department of Neuroscience, Ohio State University, Columbus, Ohio 43210, USA
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Repeated exposure to neurotoxic levels of chlorpyrifos alters hippocampal expression of neurotrophins and neuropeptides. Toxicology 2016; 340:53-62. [PMID: 26775027 DOI: 10.1016/j.tox.2016.01.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 12/23/2015] [Accepted: 01/10/2016] [Indexed: 12/19/2022]
Abstract
Chlorpyrifos (CPF), an organophosphorus pesticide (OP), is one of the most widely used pesticides in the world. Subchronic exposures to CPF that do not cause cholinergic crisis are associated with problems in cognitive function (i.e., learning and memory deficits), but the biological mechanism(s) underlying this association remain speculative. To identify potential mechanisms of subchronic CPF neurotoxicity, adult male Long Evans (LE) rats were administered CPF at 3 or 10mg/kg/d (s.c.) for 21 days. We quantified mRNA and non-coding RNA (ncRNA) expression profiles by RNA-seq, microarray analysis and small ncRNA sequencing technology in the CA1 region of the hippocampus. Hippocampal slice immunohistochemistry was used to determine CPF-induced changes in protein expression and localization patterns. Neither dose of CPF caused overt clinical signs of cholinergic toxicity, although after 21 days of exposure, cholinesterase activity was decreased to 58% or 13% of control levels in the hippocampus of rats in the 3 or 10mg/kg/d groups, respectively. Differential gene expression in the CA1 region of the hippocampus was observed only in the 10mg/kg/d dose group relative to controls. Of the 1382 differentially expressed genes identified by RNA-seq and microarray analysis, 67 were common to both approaches. Differential expression of six of these genes (Bdnf, Cort, Crhbp, Nptx2, Npy and Pnoc) was verified in an independent CPF exposure study; immunohistochemistry demonstrated that CRHBP and NPY were elevated in the CA1 region of the hippocampus at 10mg/kg/d CPF. Gene ontology enrichment analysis suggested association of these genes with receptor-mediated cell survival signaling pathways. miR132/212 was also elevated in the CA1 hippocampal region, which may play a role in the disruption of neurotrophin-mediated cognitive processes after CPF administration. These findings identify potential mediators of CPF-induced neurobehavioral deficits following subchronic exposure to CPF at a level that inhibits hippocampal cholinesterase to less than 20% of control. An equally significant finding is that subchronic exposure to CPF at a level that produces more moderate inhibition of hippocampal cholinesterase (approximately 50% of control) does not produce a discernable change in gene expression.
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Dwivedi Y. Pathogenetic and therapeutic applications of microRNAs in major depressive disorder. Prog Neuropsychopharmacol Biol Psychiatry 2016; 64:341-8. [PMID: 25689819 PMCID: PMC4537399 DOI: 10.1016/j.pnpbp.2015.02.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 01/08/2023]
Abstract
As a class of noncoding RNAs, microRNAs (miRNAs) regulate gene expression by inhibiting translation of messenger RNAs. These miRNAs have been shown to play a critical role in higher brain functioning and actively participate in synaptic plasticity. Pre-clinical evidence demonstrates that expression of miRNAs is differentially altered during stress. On the other hand, depressed individuals show marked changes in miRNA expression in brain. MiRNAs are also target of antidepressants and electroconvulsive therapy. Moreover, these miRNAs are present in circulating blood and can be easily detected. Profiling of miRNAs in blood plasma/serum provides evidence that determination of miRNAs in blood can be used as possible diagnostic and therapeutic tool. In this review article, these aspects are critically reviewed and the role of miRNAs in possible etiopathogenesis and therapeutic implications in the context of major depressive disorder is discussed.
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Affiliation(s)
- Yogesh Dwivedi
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, SC711 Sparks Center, 1720 2nd Avenue South, Birmingham, AL, USA.
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45
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Smith PY, Hernandez-Rapp J, Jolivette F, Lecours C, Bisht K, Goupil C, Dorval V, Parsi S, Morin F, Planel E, Bennett DA, Fernandez-Gomez FJ, Sergeant N, Buée L, Tremblay MÈ, Calon F, Hébert SS. miR-132/212 deficiency impairs tau metabolism and promotes pathological aggregation in vivo. Hum Mol Genet 2015; 24:6721-35. [PMID: 26362250 PMCID: PMC4634376 DOI: 10.1093/hmg/ddv377] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/27/2015] [Accepted: 09/08/2015] [Indexed: 12/22/2022] Open
Abstract
Alzheimer's disease (AD) and related tauopathies comprise a large group of neurodegenerative diseases associated with the pathological aggregation of tau protein. While much effort has focused on understanding the function of tau, little is known about the endogenous mechanisms regulating tau metabolism in vivo and how these contribute to disease. Previously, we have shown that the microRNA (miRNA) cluster miR-132/212 is downregulated in tauopathies such as AD. Here, we report that miR-132/212 deficiency in mice leads to increased tau expression, phosphorylation and aggregation. Using reporter assays and cell-based studies, we demonstrate that miR-132 directly targets tau mRNA to regulate its expression. We identified GSK-3β and PP2B as effectors of abnormal tau phosphorylation in vivo. Deletion of miR-132/212 induced tau aggregation in mice expressing endogenous or human mutant tau, an effect associated with autophagy dysfunction. Conversely, treatment of AD mice with miR-132 mimics restored in part memory function and tau metabolism. Finally, miR-132 and miR-212 levels correlated with insoluble tau and cognitive impairment in humans. These findings support a role for miR-132/212 in the regulation of tau pathology in mice and humans and provide new alternatives for therapeutic development.
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Affiliation(s)
- Pascal Y Smith
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - Julia Hernandez-Rapp
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - Francis Jolivette
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - Cynthia Lecours
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Médecine Moléculaire
| | - Kanchan Bisht
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Médecine Moléculaire
| | - Claudia Goupil
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - Veronique Dorval
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - Sepideh Parsi
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - Françoise Morin
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - Emmanuel Planel
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL 60612, USA
| | - Francisco-Jose Fernandez-Gomez
- Faculté de Médecine, Université de Lille, UDSL, Lille F-59045, France and UMR-S 1172, Alzheimer and Tauopathies, Inserm, Lille F-59045, France
| | - Nicolas Sergeant
- Faculté de Médecine, Université de Lille, UDSL, Lille F-59045, France and UMR-S 1172, Alzheimer and Tauopathies, Inserm, Lille F-59045, France
| | - Luc Buée
- Faculté de Médecine, Université de Lille, UDSL, Lille F-59045, France and UMR-S 1172, Alzheimer and Tauopathies, Inserm, Lille F-59045, France
| | - Marie-Ève Tremblay
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Médecine Moléculaire
| | - Frédéric Calon
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Faculté de Pharmacie, Université Laval, Québec, QC, Canada G1V 0A6
| | - Sébastien S Hébert
- Axe Neurosciences, Centre de Recherche du CHU de Québec, CHUL, Québec, QC, Canada G1V 4G2, Département de Psychiatrie et Neurosciences,
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Woldemichael BT, Mansuy IM. Micro-RNAs in cognition and cognitive disorders: Potential for novel biomarkers and therapeutics. Biochem Pharmacol 2015; 104:1-7. [PMID: 26626188 DOI: 10.1016/j.bcp.2015.11.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 11/20/2015] [Indexed: 12/31/2022]
Abstract
Micro-RNAs (miRNAs) are small regulatory non-coding RNAs involved in the regulation of many biological functions. In the brain, they have distinct expression patterns depending on region, cell-type and developmental stage. Their expression profile is altered by neuronal activation in response to behavioral training or chemical/electrical stimulation. The dynamic changes in miRNA level regulate the expression of genes required for cognitive processes such as learning and memory. In addition, in cognitive dysfunctions such as dementias, expression levels of many miRNAs are perturbed, not only in brain areas affected by the pathology, but also in peripheral body fluids such as serum and cerebrospinal fluid. This presents an opportunity to utilize miRNAs as biomarkers for early detection and assessment of cognitive dysfunctions. Further, since miRNAs target many genes and pathways, they may represent key molecular signatures that can help understand the mechanisms of cognitive disorders and the development of potential therapeutic agents.
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Affiliation(s)
- Bisrat T Woldemichael
- Brain Research Institute, Lab of Neuroepigenetics, Neuroscience Center Zürich, University of Zurich and Swiss Federal Institute of Technology, Zurich, Switzerland
| | - Isabelle M Mansuy
- Brain Research Institute, Lab of Neuroepigenetics, Neuroscience Center Zürich, University of Zurich and Swiss Federal Institute of Technology, Zurich, Switzerland.
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47
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Weinberg RB, Mufson EJ, Counts SE. Evidence for a neuroprotective microRNA pathway in amnestic mild cognitive impairment. Front Neurosci 2015; 9:430. [PMID: 26594146 PMCID: PMC4633499 DOI: 10.3389/fnins.2015.00430] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 10/22/2015] [Indexed: 12/22/2022] Open
Abstract
MicroRNAs (miRNAs) that regulate mRNA stability have been linked to amyloid production, tau phosphorylation, and inflammation in Alzheimer's disease (AD). However, whether cerebral miRNA networks are dysregulated during the earliest stages of AD remains underexplored. We performed miRNA expression analysis using frontal cortex tissue harvested from subjects who died with a clinical diagnosis of no cognitive impairment (NCI), amnestic mild cognitive impairment (aMCI, a putative prodromal AD stage), or mild AD. Analysis revealed that the miRNA clusters miR-212/132 and miR-23a/23b were down-regulated in the frontal cortex of aMCI subjects. Both miR-212/132 and miR23a/b are predicted to destabilize the message for sirtuin 1 (sirt1); hence, down-regulation of either miR-212/132 or miR-23a/b in frontal cortex should promote sirt1 mRNA expression in this region. qPCR studies revealed that frontal cortex levels of sirt1 were increased in aMCI. Given the ability of frontal cortex to respond to the onset of dementia by neuronal reorganization, these data suggest that miRNA-mediated up-regulation of the sirt1 pathway represents a compensatory response to the onset of the disease. By contrast, qPCR analysis of inferior temporal cortex, an area affected early in the progression of AD, showed no changes in miR-212/132, miR-23a/b, or sirt1 transcripts in the same aMCI subjects. In vitro mechanistic studies showed that coordinated down-regulation of miR-212 and miR-23a increased sirt1 protein expression and provided neuroprotection from β-amyloid toxicity in human neuronal cells. Taken together, these data suggest a novel miRNA-mediated neuroprotective pathway activated during the progression of AD that may be amenable to therapeutic manipulation.
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Affiliation(s)
- Rebecca B. Weinberg
- Department of Translational Science and Molecular Medicine, Michigan State UniversityGrand Rapids, MI, USA
| | - Elliott J. Mufson
- Department of Neurobiology, Barrow Neurological InstitutePhoenix, AZ, USA
| | - Scott E. Counts
- Department of Translational Science and Molecular Medicine, Michigan State UniversityGrand Rapids, MI, USA
- Department of Family Medicine, Michigan State UniversityGrand Rapids, MI, USA
- Hauenstein Neuroscience Center, Mercy Health Saint Mary's HospitalGrand Rapids, MI, USA
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48
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Geaghan M, Cairns MJ. MicroRNA and Posttranscriptional Dysregulation in Psychiatry. Biol Psychiatry 2015; 78:231-9. [PMID: 25636176 DOI: 10.1016/j.biopsych.2014.12.009] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 11/11/2014] [Accepted: 12/03/2014] [Indexed: 11/27/2022]
Abstract
Psychiatric syndromes, including schizophrenia, mood disorders, and autism spectrum disorders, are characterized by a complex range of symptoms, including psychosis, depression, mania, and cognitive deficits. Although the mechanisms driving pathophysiology are complex and remain largely unknown, advances in the understanding of gene association and gene networks are providing significant clues to their etiology. In recent years, small noncoding RNA molecules known as microRNA (miRNA) have emerged as potential players in the pathophysiology of mental illness. These small RNAs regulate hundreds of target transcripts by modifying their stability and translation on a broad scale, influencing entire gene networks in the process. There is evidence to suggest that numerous miRNAs are dysregulated in postmortem neuropathology of neuropsychiatric disorders, and there is strong genetic support for association of miRNA genes and their targets with these conditions. This review presents the accumulated evidence linking miRNA dysregulation and dysfunction with schizophrenia, bipolar disorder, major depressive disorder, and autism spectrum disorders and the potential of miRNAs as biomarkers or therapeutics for these disorders. We further assess the functional roles of some outstanding miRNAs associated with these conditions and how they may be influencing the development of psychiatric symptoms.
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Affiliation(s)
- Michael Geaghan
- School of Biomedical Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.; Centre for Translational Neuroscience and Mental Health, Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Murray J Cairns
- School of Biomedical Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.; Schizophrenia Research Institute, Sydney, Australia.; Centre for Translational Neuroscience and Mental Health, Hunter Medical Research Institute, Newcastle, New South Wales, Australia..
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Schmidt U, Keck ME, Buell DR. miRNAs and other non-coding RNAs in posttraumatic stress disorder: A systematic review of clinical and animal studies. J Psychiatr Res 2015; 65:1-8. [PMID: 25896120 DOI: 10.1016/j.jpsychires.2015.03.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 03/14/2015] [Accepted: 03/16/2015] [Indexed: 01/07/2023]
Abstract
In the last couple of years, non-coding (nc) RNAs like micro-RNAs (miRNAs), small interference RNAs (siRNAs) and long ncRNAs (lncRNAs) have emerged as promising candidates for biomarkers and drug-targets in a variety of psychiatric disorders. In contrast to reports on ncRNAs in affective disorders, schizophrenia and anxiety disorders, manuscripts on ncRNAs in posttraumatic stress disorder (PTSD) and associated animal models are scarce. Aiming to stimulate ncRNA research in PTSD and to identify the hitherto most promising ncRNA candidates and associated pathways for psychotrauma research, we conducted the first review on ncRNAs in PTSD. We aimed to identify studies reporting on the expression, function and regulation of ncRNAs in PTSD patients and in animals exhibiting a PTSD-like syndrome. Following the PRISMA guidelines for systematic reviews, we systematically screened the PubMed database for clinical and animal studies on ncRNAs in PTSD, animal models for PTSD and animal models employing a classical fear conditioning paradigm. Using 112 different combinations of search terms, we retrieved 523 articles of which we finally included and evaluated three clinical and 12 animal studies. In addition, using the web-based tool DIANA miRPath v2.0, we searched for molecular pathways shared by the predicted targets of the here-evaluated miRNA candidates. Our findings suggest that mir-132, which has been found to be regulated in three of the here included studies, as well as miRNAs with an already established role in Alzheimer's disease (AD) seem to be particularly promising candidates for future miRNA studies in PTSD. These results are limited by the low number of human trials and by the heterogeneity of included animal studies.
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Affiliation(s)
- Ulrike Schmidt
- Max Planck Institute of Psychiatry, Department of Clinical Research, Kraepelinstrasse 10, 80804 München, Germany.
| | - Martin E Keck
- Max Planck Institute of Psychiatry, Department of Clinical Research, Kraepelinstrasse 10, 80804 München, Germany; Clienia Privatklinik Schloessli, Schloesslistr. 8, CH-8618 Oetwil am See, Switzerland
| | - Dominik R Buell
- Max Planck Institute of Psychiatry, Department of Clinical Research, Kraepelinstrasse 10, 80804 München, Germany
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Aksoy-Aksel A, Zampa F, Schratt G. MicroRNAs and synaptic plasticity--a mutual relationship. Philos Trans R Soc Lond B Biol Sci 2015; 369:rstb.2013.0515. [PMID: 25135976 DOI: 10.1098/rstb.2013.0515] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
MicroRNAs (miRNAs) are rapidly emerging as central regulators of gene expression in the postnatal mammalian brain. Initial studies mostly focused on the function of specific miRNAs during the development of neuronal connectivity in culture, using classical gain- and loss-of-function approaches. More recently, first examples have documented important roles of miRNAs in plastic processes in intact neural circuits in the rodent brain related to higher cognitive abilities and neuropsychiatric disease. At the same time, evidence is accumulating that miRNA function itself is subjected to sophisticated control mechanisms engaged by the activity of neural circuits. In this review, we attempt to pay tribute to this mutual relationship between miRNAs and synaptic plasticity. In particular, in the first part, we summarize how neuronal activity influences each step in the lifetime of miRNAs, including the regulation of transcription, maturation, gene regulatory function and turnover in mammals. In the second part, we discuss recent examples of miRNA function in synaptic plasticity in rodent models and their implications for higher cognitive function and neurological disorders, with a special emphasis on epilepsy as a disorder of abnormal nerve cell activity.
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Affiliation(s)
- Ayla Aksoy-Aksel
- Institut für Physiologische Chemie, Biochemisch-Pharmakologisches Centrum Marburg, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Federico Zampa
- Institut für Physiologische Chemie, Biochemisch-Pharmakologisches Centrum Marburg, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Gerhard Schratt
- Institut für Physiologische Chemie, Biochemisch-Pharmakologisches Centrum Marburg, Philipps-Universität Marburg, 35032 Marburg, Germany
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