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Zanda MT, Saikali L, Morris P, Daws SE. MicroRNA-mediated translational pathways are regulated in the orbitofrontal cortex and peripheral blood samples during acute abstinence from heroin self-administration. ADVANCES IN DRUG AND ALCOHOL RESEARCH 2023; 3:11668. [PMID: 38389822 PMCID: PMC10880771 DOI: 10.3389/adar.2023.11668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/28/2023] [Indexed: 02/24/2024]
Abstract
Opioid misuse in the United States contributes to >70% of annual overdose deaths. To develop additional therapeutics that may prevent opioid misuse, further studies on the neurobiological consequences of opioid exposure are needed. Here we sought to characterize molecular neuroadaptations involving microRNA (miRNA) pathways in the brain and blood of adult male rats that self-administered the opioid heroin. miRNAs are ∼18-24 nucleotide RNAs that regulate protein expression by preventing mRNA translation into proteins. Manipulation of miRNAs and their downstream pathways can critically regulate drug seeking behavior. We performed small-RNA sequencing of miRNAs and proteomics profiling on tissue from the orbitofrontal cortex (OFC), a brain region associated with heroin seeking, following 2 days of forced abstinence from self-administration of 0.03 mg/kg/infusion heroin or sucrose. Heroin self-administration resulted in a robust shift of the OFC miRNA profile, regulating 77 miRNAs, while sucrose self-administration only regulated 9 miRNAs that did not overlap with the heroin-induced profile. Conversely, proteomics revealed dual regulation of seven proteins by both heroin and sucrose in the OFC. Pathway analysis determined that heroin-associated miRNA pathways are predicted to target genes associated with the term "prion disease," a term that was also enriched in the heroin-induced protein expression dataset. Lastly, we confirmed that a subset of heroin-induced miRNA expression changes in the OFC are regulated in peripheral serum and correlate with heroin infusions. These findings demonstrate that peripheral blood samples may have biomarker utility for assessment of drug-induced miRNA pathway alterations that occur in the brain following chronic drug exposure.
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Affiliation(s)
- Mary Tresa Zanda
- Center for Substance Abuse Research, Temple University, Philadelphia, PA, United States
- Department of Neural Sciences, Temple University, Philadelphia, PA, United States
| | - Leila Saikali
- Center for Substance Abuse Research, Temple University, Philadelphia, PA, United States
- College of Liberal Arts, Temple University, Philadelphia, PA, United States
| | - Paige Morris
- Center for Substance Abuse Research, Temple University, Philadelphia, PA, United States
- Department of Neural Sciences, Temple University, Philadelphia, PA, United States
| | - Stephanie E. Daws
- Center for Substance Abuse Research, Temple University, Philadelphia, PA, United States
- Department of Neural Sciences, Temple University, Philadelphia, PA, United States
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2
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Mao LM, Mathur N, Wang JQ. An allosteric potentiator of metabotropic glutamate (mGlu) 2 receptors reduces the cocaine-stimulated ERK1/2 phosphorylation in the mouse striatum. Neurosci Lett 2023; 795:137028. [PMID: 36565803 PMCID: PMC9870709 DOI: 10.1016/j.neulet.2022.137028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/20/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Metabotropic glutamate (mGlu) receptors are involved in the experience-dependent neuroplasticity in the mesolimbic reward circuit. A Gαi/o-coupled mGlu2 subtype is distributed presynaptically in the striatum. These autoreceptors may have a significant influence over striatal neurons in their intracellular signaling pathways in response to a psychostimulant. Here we explored the effect of pharmacological potentiation of mGlu2 receptors on cocaine-stimulated phosphorylation (activation) of extracellular signal-regulated kinases (ERK) in the mouse striatum in vivo. We found that an mGlu2 selective positive allosteric modulator (PAM) LY487379 after a systemic injection did not alter basal phosphorylation of ERK1/2 or c-Jun N-terminal kinases in the striatum. However, pretreatment with LY487379 blocked the ERK1/2 phosphorylation induced by cocaine in the two subdivisions of the striatum, i.e., the caudate putamen and nucleus accumbens. LY487379 also blocked the cocaine-induced phosphorylation of Elk-1, a transcription factor downstream to the ERK pathway. Additionally, LY487379 reduced locomotor behavioral responses to cocaine. These results demonstrate that the mGlu2 PAM LY487379 possesses the ability to attenuate the activation of the ERK1/2 pathway in striatal neurons and reduce locomotor activity in response to cocaine in vivo.
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Affiliation(s)
- Li-Min Mao
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Nirav Mathur
- Department of Anesthesiology, School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - John Q Wang
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA; Department of Anesthesiology, School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
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3
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Floris G, Gillespie A, Zanda MT, Dabrowski KR, Sillivan SE. Heroin Regulates Orbitofrontal Circular RNAs. Int J Mol Sci 2022; 23:1453. [PMID: 35163373 PMCID: PMC8836038 DOI: 10.3390/ijms23031453] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/10/2022] [Accepted: 01/24/2022] [Indexed: 11/17/2022] Open
Abstract
The number of drug overdose deaths involving opioids continues to rise in the United States. Many patients with opioid use disorder (OUD) that seek treatment still experience relapse. Perseverant opioid seeking behaviors represent a major challenge to treating OUD and additional therapeutic development will require insight into opioid-induced neurobiological adaptations. In this study, we explored the regulation of a novel class of RNAs, circular RNAs (circRNAs), by the addictive opioid heroin in the rat orbitofrontal cortex (OFC), a brain region that mediates behavioral responses to rewarding stimuli. Microarray analysis identified 76 OFC circRNAs significantly regulated in male rats after heroin self-administration. We evaluated the specificity of these findings by measuring heroin-associated circRNA expression in female rats after heroin self-administration and in rats that self-administered sucrose. We identify circGrin2b, circUbe2cp, circAnks1a, circAdcy5 and circSlc24A2 as heroin-responsive circRNAs in the OFC. Linear mRNA levels of heroin-associated circRNAs were unchanged except for Grin2b and Adcy5. An integrated bioinformatics analysis of regulated circRNAs identified microRNAs predicted to bind heroin-associated circRNAs and downstream targets of circRNA: microRNA sponging. Thus, heroin regulates the expression of OFC RNA splice variants that circularize and may impact cellular processes that contribute to the neurobiological adaptations that arise from chronic heroin exposure.
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Affiliation(s)
- Gabriele Floris
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (G.F.); (A.G.); (M.T.Z.); (K.R.D.)
- Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Aria Gillespie
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (G.F.); (A.G.); (M.T.Z.); (K.R.D.)
- Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Mary Tresa Zanda
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (G.F.); (A.G.); (M.T.Z.); (K.R.D.)
- Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Konrad R. Dabrowski
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (G.F.); (A.G.); (M.T.Z.); (K.R.D.)
- Department of Biological Sciences, Temple University, Philadelphia, PA 19122, USA
| | - Stephanie E. Sillivan
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (G.F.); (A.G.); (M.T.Z.); (K.R.D.)
- Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
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4
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Allichon MC, Ortiz V, Pousinha P, Andrianarivelo A, Petitbon A, Heck N, Trifilieff P, Barik J, Vanhoutte P. Cell-Type-Specific Adaptions in Striatal Medium-Sized Spiny Neurons and Their Roles in Behavioral Responses to Drugs of Abuse. Front Synaptic Neurosci 2022; 13:799274. [PMID: 34970134 PMCID: PMC8712310 DOI: 10.3389/fnsyn.2021.799274] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/26/2021] [Indexed: 12/21/2022] Open
Abstract
Drug addiction is defined as a compulsive pattern of drug-seeking- and taking- behavior, with recurrent episodes of abstinence and relapse, and a loss of control despite negative consequences. Addictive drugs promote reinforcement by increasing dopamine in the mesocorticolimbic system, which alters excitatory glutamate transmission within the reward circuitry, thereby hijacking reward processing. Within the reward circuitry, the striatum is a key target structure of drugs of abuse since it is at the crossroad of converging glutamate inputs from limbic, thalamic and cortical regions, encoding components of drug-associated stimuli and environment, and dopamine that mediates reward prediction error and incentive values. These signals are integrated by medium-sized spiny neurons (MSN), which receive glutamate and dopamine axons converging onto their dendritic spines. MSN primarily form two mostly distinct populations based on the expression of either DA-D1 (D1R) or DA-D2 (D2R) receptors. While a classical view is that the two MSN populations act in parallel, playing antagonistic functional roles, the picture seems much more complex. Herein, we review recent studies, based on the use of cell-type-specific manipulations, demonstrating that dopamine differentially modulates dendritic spine density and synapse formation, as well as glutamate transmission, at specific inputs projecting onto D1R-MSN and D2R-MSN to shape persistent pathological behavioral in response to drugs of abuse. We also discuss the identification of distinct molecular events underlying the detrimental interplay between dopamine and glutamate signaling in D1R-MSN and D2R-MSN and highlight the relevance of such cell-type-specific molecular studies for the development of innovative strategies with potential therapeutic value for addiction. Because drug addiction is highly prevalent in patients with other psychiatric disorders when compared to the general population, we last discuss the hypothesis that shared cellular and molecular adaptations within common circuits could explain the co-occurrence of addiction and depression. We will therefore conclude this review by examining how the nucleus accumbens (NAc) could constitute a key interface between addiction and depression.
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Affiliation(s)
- Marie-Charlotte Allichon
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Vanesa Ortiz
- Université Côte d'Azur, Nice, France.,Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UMR 7275, Valbonne, France
| | - Paula Pousinha
- Université Côte d'Azur, Nice, France.,Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UMR 7275, Valbonne, France
| | - Andry Andrianarivelo
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Anna Petitbon
- Université Bordeaux, INRAE, Bordeaux INP, NutriNeuro, Bordeaux, France
| | - Nicolas Heck
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Pierre Trifilieff
- Université Bordeaux, INRAE, Bordeaux INP, NutriNeuro, Bordeaux, France
| | - Jacques Barik
- Université Côte d'Azur, Nice, France.,Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UMR 7275, Valbonne, France
| | - Peter Vanhoutte
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
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5
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RGS14 Regulation of Post-Synaptic Signaling and Spine Plasticity in Brain. Int J Mol Sci 2021; 22:ijms22136823. [PMID: 34201943 PMCID: PMC8268017 DOI: 10.3390/ijms22136823] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 02/06/2023] Open
Abstract
The regulator of G-protein signaling 14 (RGS14) is a multifunctional signaling protein that regulates post synaptic plasticity in neurons. RGS14 is expressed in the brain regions essential for learning, memory, emotion, and stimulus-induced behaviors, including the basal ganglia, limbic system, and cortex. Behaviorally, RGS14 regulates spatial and object memory, female-specific responses to cued fear conditioning, and environmental- and psychostimulant-induced locomotion. At the cellular level, RGS14 acts as a scaffolding protein that integrates G protein, Ras/ERK, and calcium/calmodulin signaling pathways essential for spine plasticity and cell signaling, allowing RGS14 to naturally suppress long-term potentiation (LTP) and structural plasticity in hippocampal area CA2 pyramidal cells. Recent proteomics findings indicate that RGS14 also engages the actomyosin system in the brain, perhaps to impact spine morphogenesis. Of note, RGS14 is also a nucleocytoplasmic shuttling protein, where its role in the nucleus remains uncertain. Balanced nuclear import/export and dendritic spine localization are likely essential for RGS14 neuronal functions as a regulator of synaptic plasticity. Supporting this idea, human genetic variants disrupting RGS14 localization also disrupt RGS14’s effects on plasticity. This review will focus on the known and unexplored roles of RGS14 in cell signaling, physiology, disease and behavior.
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Contesse T, Broussot L, Fofo H, Vanhoutte P, Fernandez SP, Barik J. Dopamine and glutamate receptors control social stress-induced striatal ERK1/2 activation. Neuropharmacology 2021; 190:108534. [PMID: 33781778 DOI: 10.1016/j.neuropharm.2021.108534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/03/2021] [Accepted: 03/12/2021] [Indexed: 11/27/2022]
Abstract
Stress has been acknowledged as one of the main risk factors for the onset of psychiatric disorders. Social stress is the most common type of stressor encountered in our daily lives. Uncovering the molecular determinants of the effect of stress on the brain would help understanding the complex maladaptations that contribute to pathological stress-related mental states. We examined molecular changes in the reward system following social defeat stress in mice, as increasing evidence implicates this system in sensing stressful stimuli. Following acute or chronic social defeat stress, the activation (i.e. phosphorylation) of extracellular signal-regulated kinases ERK1 and ERK2 (pERK1/2), markers of synaptic plasticity, was monitored in sub-regions of the reward system. We employed pharmacological antagonists and inhibitory DREADD to dissect the sequence of events controlling pERK1/2 dynamics. The nucleus accumbens (NAc) showed marked increases in pERK1/2 following both acute and chronic social stress compared to the dorsal striatum. Increases in pERK1/2 required dopamine D1 receptors and GluN2B-containing NMDA receptors. Paraventricular thalamic glutamatergic inputs to the NAc are required for social stress-induced pERK1/2. The molecular adaptations identified here could contribute to the long-lasting impact of stress on the brain and may be targeted to counteract stress-related psychopathologies.
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Affiliation(s)
- Thomas Contesse
- Université Côte d'Azur, Nice, France; Institut de Pharmacologie Moléculaire & Cellulaire, CNRS UMR7275, Valbonne, France
| | - Loïc Broussot
- Université Côte d'Azur, Nice, France; Institut de Pharmacologie Moléculaire & Cellulaire, CNRS UMR7275, Valbonne, France
| | - Hugo Fofo
- Université Côte d'Azur, Nice, France; Institut de Pharmacologie Moléculaire & Cellulaire, CNRS UMR7275, Valbonne, France
| | - Peter Vanhoutte
- CNRS, UMR 8246, Neuroscience Paris Seine, F, 75005, Paris, France; INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, F, 75005, Paris, France; Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, F, 75005, Paris, France
| | - Sebastian P Fernandez
- Université Côte d'Azur, Nice, France; Institut de Pharmacologie Moléculaire & Cellulaire, CNRS UMR7275, Valbonne, France.
| | - Jacques Barik
- Université Côte d'Azur, Nice, France; Institut de Pharmacologie Moléculaire & Cellulaire, CNRS UMR7275, Valbonne, France.
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7
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Kim B, Yun J, Park B. Methamphetamine-Induced Neuronal Damage: Neurotoxicity and Neuroinflammation. Biomol Ther (Seoul) 2020; 28:381-388. [PMID: 32668144 PMCID: PMC7457172 DOI: 10.4062/biomolther.2020.044] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 01/11/2023] Open
Abstract
Methamphetamine (METH) is a highly addictive psychostimulant and one of the most widely abused drugs worldwide. The continuous use of METH eventually leads to drug addiction and causes serious health complications, including attention deficit, memory loss and cognitive decline. These neurological complications are strongly associated with METH-induced neurotoxicity and neuroinflammation, which leads to neuronal cell death. The current review investigates the molecular mechanisms underlying METH-mediated neuronal damages. Our analysis demonstrates that the process of neuronal impairment by METH is closely related to oxidative stress, transcription factor activation, DNA damage, excitatory toxicity and various apoptosis pathways. Thus, we reach the conclusion here that METH-induced neuronal damages are attributed to the neurotoxic and neuroinflammatory effect of the drug. This review provides an insight into the mechanisms of METH addiction and contributes to the discovery of therapeutic targets on neurological impairment by METH abuse.
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Affiliation(s)
- Buyun Kim
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Jangmi Yun
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Byoungduck Park
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
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8
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Delint-Ramirez I, Segev A, Pavuluri A, Self DW, Kourrich S. Cocaine-Induced Synaptic Redistribution of NMDARs in Striatal Neurons Alters NMDAR-Dependent Signal Transduction. Front Neurosci 2020; 14:698. [PMID: 32760242 PMCID: PMC7371985 DOI: 10.3389/fnins.2020.00698] [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: 04/20/2020] [Accepted: 06/09/2020] [Indexed: 11/25/2022] Open
Abstract
The consequence of repeated cocaine exposure and prolonged abstinence on glutamate receptor expression in the nucleus accumbens has been extensively studied. However, the early effects of cocaine on NMDAR signaling remain unknown. NMDAR signaling depends on the subunit composition, subcellular localization, and the interaction with proteins at the postsynaptic density (PSD), where NMDARs and other proteins form supercomplexes that are responsible for the signaling pathways activated by NMDAR-induced Ca2+ influx. Here, we investigated the effect of cocaine on NMDAR subunit composition and subcellular localization after both intraperitoneal non-contingent cocaine and response-contingent intravenous cocaine self-administration in mice. We found that repeated cocaine exposure, regardless of the route or contingency of drug administration, decreases NMDAR interactions with the PSD and synaptic lipid rafts in the accumbens shell and dorsal striatum. We provide evidence that cocaine triggers an early redistribution of NMDARs from synaptic to extrasynaptic sites, and that this adaptation has implications in the activation of downstream signaling pathways. Thus, consistent with a loss of NMDAR function, cocaine-induced ERK phosphorylation is attenuated. Because early NMDAR activity contributes to the initiation of lasting addiction-relevant neuroadaptations, these data may hold clues into cellular mechanisms responsible for the development of cocaine addiction.
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Affiliation(s)
- Ilse Delint-Ramirez
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Amir Segev
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Asha Pavuluri
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - David W Self
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Saïd Kourrich
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States.,Département des Sciences Biologiques-CERMO-FC, Université du Québec à Montréal, Montreal, QC, Canada
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9
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Salery M, Trifilieff P, Caboche J, Vanhoutte P. From Signaling Molecules to Circuits and Behaviors: Cell-Type-Specific Adaptations to Psychostimulant Exposure in the Striatum. Biol Psychiatry 2020; 87:944-953. [PMID: 31928716 DOI: 10.1016/j.biopsych.2019.11.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 10/30/2019] [Accepted: 11/01/2019] [Indexed: 12/17/2022]
Abstract
Addiction is characterized by a compulsive pattern of drug seeking and consumption and a high risk of relapse after withdrawal that are thought to result from persistent adaptations within brain reward circuits. Drugs of abuse increase dopamine (DA) concentration in these brain areas, including the striatum, which shapes an abnormal memory trace of drug consumption that virtually highjacks reward processing. Long-term neuronal adaptations of gamma-aminobutyric acidergic striatal projection neurons (SPNs) evoked by drugs of abuse are critical for the development of addiction. These neurons form two mostly segregated populations, depending on the DA receptor they express and their output projections, constituting the so-called direct (D1 receptor) and indirect (D2 receptor) SPN pathways. Both SPN subtypes receive converging glutamate inputs from limbic and cortical regions, encoding contextual and emotional information, together with DA, which mediates reward prediction and incentive values. DA differentially modulates the efficacy of glutamate synapses onto direct and indirect SPN pathways by recruiting distinct striatal signaling pathways, epigenetic and genetic responses likely involved in the transition from casual drug use to addiction. Herein we focus on recent studies that have assessed psychostimulant-induced alterations in a cell-type-specific manner, from remodeling of input projections to the characterization of specific molecular events in each SPN subtype and their impact on long-lasting behavioral adaptations. We discuss recent evidence revealing the complex and concerted action of both SPN populations on drug-induced behavioral responses, as these studies can contribute to the design of future strategies to alleviate specific behavioral components of addiction.
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Affiliation(s)
- Marine Salery
- Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Pierre Trifilieff
- NutriNeuro, Unité Mixte de Recherche (UMR) 1286, Institut National de la Recherche Agronomique, Bordeaux Institut Polytechnique, University of Bordeaux, Bordeaux, France
| | - Jocelyne Caboche
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, Sorbonne Université, Faculty of Sciences, Paris, France; Centre National de la Recherche Scientifique, UMR8246, Paris, France; Institut National de la Santé et de la Recherche Médicale, U1130, Paris France.
| | - Peter Vanhoutte
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, Sorbonne Université, Faculty of Sciences, Paris, France; Centre National de la Recherche Scientifique, UMR8246, Paris, France; Institut National de la Santé et de la Recherche Médicale, U1130, Paris France
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10
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Translational Molecular Approaches in Substance Abuse Research. Handb Exp Pharmacol 2019; 258:31-60. [PMID: 31628598 DOI: 10.1007/164_2019_259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Excessive abuse of psychoactive substances is one of the leading contributors to morbidity and mortality worldwide. In this book chapter, we review translational research strategies that are applied in the pursuit of new and more effective therapeutics for substance use disorder (SUD). The complex, multidimensional nature of psychiatric disorders like SUD presents difficult challenges to investigators. While animal models are critical for outlining the mechanistic relationships between defined behaviors and genetic and/or molecular changes, the heterogeneous pathophysiology of brain diseases is uniquely human, necessitating the use of human studies and translational research schemes. Translational research describes a cross-species approach in which findings from human patient-based data can be used to guide molecular genetic investigations in preclinical animal models in order to delineate the mechanisms of reward circuitry changes in the addicted state. Results from animal studies can then inform clinical investigations toward the development of novel treatments for SUD. Here we describe the strategies that are used to identify and functionally validate genetic variants in the human genome which may contribute to increased risk for SUD, starting from early candidate gene approaches to more recent genome-wide association studies. We will next examine studies aimed at understanding how transcriptional and epigenetic dysregulation in SUD can persistently alter cellular function in the disease state. In our discussion, we then focus on examples from the literature illustrating molecular genetic methodologies that have been applied to studies of different substances of abuse - from alcohol and nicotine to stimulants and opioids - in order to exemplify how these approaches can both delineate the underlying molecular systems driving drug addiction and provide insights into the genetic basis of SUD.
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11
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Valjent E, Biever A, Gangarossa G, Puighermanal E. Dopamine signaling in the striatum. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2019; 116:375-396. [PMID: 31036297 DOI: 10.1016/bs.apcsb.2019.01.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The striatum integrates dopamine-mediated reward signals to generate appropriate behavior in response to glutamate-mediated sensory cues. Such associative learning relies on enduring neural plasticity in striatal GABAergic spiny projection neurons which, when altered, can lead to the development of a wide variety of pathological states. Considerable progress has been made in our understanding of the intracellular signaling mechanisms in dopamine-related behaviors and pathologies. Through the prism of the regulation of histone H3 and ribosomal protein S6 phosphorylation, we review how dopamine-mediated signaling events regulate gene transcription and mRNA translation. Particularly, we focus on the intracellular cascades controlling these phosphorylations downstream of the modulation of dopamine receptors by psychostimulants, antipsychotics and l-DOPA. Finally, we highlight the importance to precisely determine in which neuronal populations these signaling events occur in order to understand how they participate in remodeling neural circuits and altering dopamine-related behaviors.
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Affiliation(s)
- Emmanuel Valjent
- IGF, CNRS, INSERM, University of Montpellier, Montpellier, France.
| | - Anne Biever
- Max Planck Institute for Brain Research, Frankfurt am Main, Germany
| | - Giuseppe Gangarossa
- Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Emma Puighermanal
- Department of Cell Biology, Physiology and Immunology, Institute of Neuroscience, Autonomous University of Barcelona, Barcelona, Spain
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12
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Apazoglou K, Farley S, Gorgievski V, Belzeaux R, Lopez JP, Grenier J, Ibrahim EC, El Khoury MA, Tse YC, Mongredien R, Barbé A, de Macedo CEA, Jaworski W, Bochereau A, Orrico A, Isingrini E, Guinaudie C, Mikasova L, Louis F, Gautron S, Groc L, Massaad C, Yildirim F, Vialou V, Dumas S, Marti F, Mechawar N, Morice E, Wong TP, Caboche J, Turecki G, Giros B, Tzavara ET. Antidepressive effects of targeting ELK-1 signal transduction. Nat Med 2018; 24:591-597. [DOI: 10.1038/s41591-018-0011-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 02/12/2018] [Indexed: 12/28/2022]
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13
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Epigenetic mechanisms associated with addiction-related behavioural effects of nicotine and/or cocaine: implication of the endocannabinoid system. Behav Pharmacol 2018; 28:493-511. [PMID: 28704272 DOI: 10.1097/fbp.0000000000000326] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The addictive use of nicotine (NC) and cocaine (COC) continues to be a major public health problem, and their combined use has been reported, particularly during adolescence. In neural plasticity, commonly induced by NC and COC, as well as behavioural plasticity related to the use of these two drugs, the involvement of epigenetic mechanisms, in which the reversible regulation of gene expression occurs independently of the DNA sequence, has recently been reported. Furthermore, on the basis of intense interactions with the target neurotransmitter systems, the endocannabinoid (ECB) system has been considered pivotal for eliciting the effects of NC or COC. The combined use of marijuana with NC and/or COC has also been reported. This article presents the addiction-related behavioural effects of NC and/or COC, based on the common behavioural/neural plasticity and combined use of NC/COC, and reviews the interacting role of the ECB system. The epigenetic processes inseparable from the effects of NC and/or COC (i.e. DNA methylation, histone modifications and alterations in microRNAs) and the putative therapeutic involvement of the ECB system at the epigenetic level are also discussed.
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14
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Salery M, Dos Santos M, Saint-Jour E, Moumné L, Pagès C, Kappès V, Parnaudeau S, Caboche J, Vanhoutte P. Activity-Regulated Cytoskeleton-Associated Protein Accumulates in the Nucleus in Response to Cocaine and Acts as a Brake on Chromatin Remodeling and Long-Term Behavioral Alterations. Biol Psychiatry 2017; 81:573-584. [PMID: 27567310 DOI: 10.1016/j.biopsych.2016.05.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 05/17/2016] [Accepted: 05/31/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Addiction relies on persistent alterations of neuronal properties, which depends on gene regulation. Activity-regulated cytoskeleton-associated protein (Arc) is an immediate early gene that modulates neuronal plasticity underlying learning and memory. Its role in cocaine-induced neuronal and behavioral adaptations remains elusive. METHODS Acute cocaine-treated mice were used for quantitative reverse-transcriptase polymerase chain reaction, immunocytochemistry, and confocal imaging from striatum. Live imaging and transfection assays for Arc overexpression were performed from primary cultures. Molecular and behavioral adaptations to cocaine were studied from Arc-deficient mice and their wild-type littermates. RESULTS Arc messenger RNA and proteins are rapidly induced in the striatum after acute cocaine administration, via an extracellular-signal regulated kinase-dependent de novo protein synthesis. Although detected in dendrites, Arc accumulates in the nucleus in active zones of transcription, where it colocalizes with phospho-Ser10-histone H3, an important component of nucleosomal response. In vitro, Arc overexpression downregulates phospho-Ser10-histone H3 without modifying extracellular-signal regulated kinase phosphorylation in the nucleus. In vivo, Arc-deficient mice display decreased heterochromatin domains, a high RNA-polymerase II activity and enhanced c-Fos expression. These mice presented an exacerbated psychomotor sensitization and conditioned place preference induced by low doses of cocaine. CONCLUSIONS Cocaine induces the rapid induction of Arc and its nuclear accumulation in striatal neurons. Locally, it alters the nucleosomal response, and acts as a brake on chromatin remodeling and gene regulation. These original observations posit Arc as a major homeostatic modulator of molecular and behavioral responses to cocaine. Thus, modulating Arc levels may provide promising therapeutic approaches in drug addiction.
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Affiliation(s)
- Marine Salery
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Marc Dos Santos
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Estefani Saint-Jour
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Lara Moumné
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Christiane Pagès
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Vincent Kappès
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Sébastien Parnaudeau
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Jocelyne Caboche
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Peter Vanhoutte
- INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine; Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France.
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15
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Harricharan R, Abboussi O, Daniels WM. Addiction: A dysregulation of satiety and inflammatory processes. PROGRESS IN BRAIN RESEARCH 2017; 235:65-91. [DOI: 10.1016/bs.pbr.2017.07.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Papale A, Morella IM, Indrigo MT, Bernardi RE, Marrone L, Marchisella F, Brancale A, Spanagel R, Brambilla R, Fasano S. Impairment of cocaine-mediated behaviours in mice by clinically relevant Ras-ERK inhibitors. eLife 2016; 5. [PMID: 27557444 PMCID: PMC4996650 DOI: 10.7554/elife.17111] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 08/04/2016] [Indexed: 12/30/2022] Open
Abstract
Ras-ERK signalling in the brain plays a central role in drug addiction. However, to date, no clinically relevant inhibitor of this cascade has been tested in experimental models of addiction, a necessary step toward clinical trials. We designed two new cell-penetrating peptides - RB1 and RB3 - that penetrate the brain and, in the micromolar range, inhibit phosphorylation of ERK, histone H3 and S6 ribosomal protein in striatal slices. Furthermore, a screening of small therapeutics currently in clinical trials for cancer therapy revealed PD325901 as a brain-penetrating drug that blocks ERK signalling in the nanomolar range. All three compounds have an inhibitory effect on cocaine-induced ERK activation and reward in mice. In particular, PD325901 persistently blocks cocaine-induced place preference and accelerates extinction following cocaine self-administration. Thus, clinically relevant, systemically administered drugs that attenuate Ras-ERK signalling in the brain may be valuable tools for the treatment of cocaine addiction. DOI:http://dx.doi.org/10.7554/eLife.17111.001
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Affiliation(s)
- Alessandro Papale
- Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom.,School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Ilaria Maria Morella
- Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom.,School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | | | - Rick Eugene Bernardi
- Institute of Psychopharmacology, Heidelberg University, Heidelberg, Germany.,Central Institute of Mental Health, Heidelberg University, Heidelberg, Germany.,Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Livia Marrone
- Institute of Experimental Neurology, Division of Neuroscience, IRCCS-San Raffaele Scientific Institute, Milan, Italy
| | - Francesca Marchisella
- Institute of Experimental Neurology, Division of Neuroscience, IRCCS-San Raffaele Scientific Institute, Milan, Italy
| | - Andrea Brancale
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| | - Rainer Spanagel
- Institute of Psychopharmacology, Heidelberg University, Heidelberg, Germany.,Central Institute of Mental Health, Heidelberg University, Heidelberg, Germany.,Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Riccardo Brambilla
- Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom.,School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Stefania Fasano
- Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom.,School of Biosciences, Cardiff University, Cardiff, United Kingdom
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17
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García-Pardo MP, Roger-Sanchez C, Rodríguez-Arias M, Miñarro J, Aguilar MA. Pharmacological modulation of protein kinases as a new approach to treat addiction to cocaine and opiates. Eur J Pharmacol 2016; 781:10-24. [DOI: 10.1016/j.ejphar.2016.03.065] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 12/13/2022]
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18
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Sun WL, Quizon PM, Zhu J. Molecular Mechanism: ERK Signaling, Drug Addiction, and Behavioral Effects. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2015; 137:1-40. [PMID: 26809997 DOI: 10.1016/bs.pmbts.2015.10.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Addiction to psychostimulants has been considered as a chronic psychiatric disorder characterized by craving and compulsive drug seeking and use. Over the past two decades, accumulating evidence has demonstrated that repeated drug exposure causes long-lasting neurochemical and cellular changes that result in enduring neuroadaptation in brain circuitry and underlie compulsive drug consumption and relapse. Through intercellular signaling cascades, drugs of abuse induce remodeling in the rewarding circuitry that contributes to the neuroplasticity of learning and memory associated with addiction. Here, we review the role of the extracellular signal-regulated kinase (ERK), a member of the mitogen-activated protein kinase, and its related intracellular signaling pathways in drug-induced neuroadaptive changes that are associated with drug-mediated psychomotor activity, rewarding properties and relapse of drug seeking behaviors. We also discuss the neurobiological and behavioral effects of pharmacological and genetic interferences with ERK-associated molecular cascades in response to abused substances. Understanding the dynamic modulation of ERK signaling in response to drugs may provide novel molecular targets for therapeutic strategies to drug addiction.
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Affiliation(s)
- Wei-Lun Sun
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, South Carolina, USA
| | - Pamela M Quizon
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, South Carolina, USA
| | - Jun Zhu
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, South Carolina, USA.
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19
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The absence of VGLUT3 predisposes to cocaine abuse by increasing dopamine and glutamate signaling in the nucleus accumbens. Mol Psychiatry 2015; 20:1448-59. [PMID: 26239290 DOI: 10.1038/mp.2015.104] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 06/18/2015] [Accepted: 06/22/2015] [Indexed: 01/16/2023]
Abstract
Tonically active cholinergic interneurons (TANs) from the nucleus accumbens (NAc) are centrally involved in reward behavior. TANs express a vesicular glutamate transporter referred to as VGLUT3 and thus use both acetylcholine and glutamate as neurotransmitters. The respective roles of each transmitter in the regulation of reward and addiction are still unknown. In this study, we showed that disruption of the gene that encodes VGLUT3 (Slc17a8) markedly increased cocaine self-administration in mice. Concomitantly, the amount of dopamine (DA) release was strongly augmented in the NAc of VGLUT3(-/-) mice because of a lack of signaling by metabotropic glutamate receptors. Furthermore, dendritic spines and glutamatergic synaptic transmission on medium spiny neurons were increased in the NAc of VGLUT3(-/-) mice. Increased DA and glutamate signaling in the NAc are hallmarks of addiction. Our study shows that TANs use glutamate to reduce DA release and decrease reinforcing properties of cocaine in mice. Interestingly, we also observed an increased frequency of rare variations in SLC17A8 in a cohort of severe drug abusers compared with controls. Our findings identify VGLUT3 as an unexpected regulator of drug abuse.
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20
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Subthalamic nucleus high-frequency stimulation modulates neuronal reactivity to cocaine within the reward circuit. Neurobiol Dis 2015; 80:54-62. [DOI: 10.1016/j.nbd.2015.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 05/04/2015] [Accepted: 05/09/2015] [Indexed: 02/05/2023] Open
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21
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DePoy LM, Gourley SL. Synaptic Cytoskeletal Plasticity in the Prefrontal Cortex Following Psychostimulant Exposure. Traffic 2015; 16:919-40. [PMID: 25951902 DOI: 10.1111/tra.12295] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 04/30/2015] [Accepted: 04/30/2015] [Indexed: 02/01/2023]
Abstract
Addiction is characterized by maladaptive decision-making, a loss of control over drug consumption and habit-like drug seeking despite adverse consequences. These cognitive changes may reflect the effects of drugs of abuse on prefrontal cortical neurobiology. Here, we review evidence that amphetamine and cocaine fundamentally remodel the structure of excitatory neurons in the prefrontal cortex. We summarize evidence in particular that these psychostimulants have opposing effects in the medial and orbital prefrontal cortices ('mPFC' and 'oPFC', respectively). For example, amphetamine and cocaine increase dendrite length and spine density in the mPFC, while dendrites are impoverished and dendritic spines are eliminated in the oPFC. We will discuss evidence that certain cytoskeletal regulatory proteins expressed in the oPFC and implicated in postnatal (adolescent) neural development also regulate behavioral sensitivity to cocaine. These findings potentially open a window of opportunity for the identification of novel pharmacotherapeutic targets in the treatment of drug abuse disorders in adults, as well as in drug-vulnerable adolescent populations. Finally, we will discuss the behavioral implications of drug-related dendritic spine elimination in the oPFC, with regard to reversal learning tasks and tasks that assess the development of reward-seeking habits, both used to model aspects of addiction in rodents.
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Affiliation(s)
- Lauren M DePoy
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA.,Department of Psychiatry, Emory University School of Medicine, Atlanta, GA, USA.,Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA.,Graduate Program in Neuroscience, Emory University, Atlanta, GA, USA
| | - Shannon L Gourley
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA.,Department of Psychiatry, Emory University School of Medicine, Atlanta, GA, USA.,Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA.,Graduate Program in Neuroscience, Emory University, Atlanta, GA, USA
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22
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Abstract
Post-traumatic stress disorder (PTSD) is a complex psychiatric disorder characterized by the intrusive re-experiencing of past trauma, avoidant behavior, enhanced fear, and hyperarousal following a traumatic event in vulnerable populations. Preclinical animal models do not replicate the human condition in its entirety, but seek to mimic symptoms or endophenotypes associated with PTSD. Although many models of traumatic stress exist, few adequately capture the complex nature of the disorder and the observed individual variability in susceptibility of humans to PTSD. In addition, various types of stressors may produce different molecular neuroadaptations that likely contribute to the various behavioral disruptions produced by each model, although certain consistent neurobiological themes related to PTSD have emerged. For example, animal models report traumatic stress-induced and trauma reminder-induced alterations in neuronal activity in the amygdala and prefrontal cortex, in agreement with the human PTSD literature. Models have also provided a conceptual framework for the often-observed combination of PTSD and comorbid conditions such as alcohol use disorder. Future studies will continue to refine preclinical PTSD models in hope of capitalizing on their potential to deliver new and more efficacious treatments for PTSD and associated psychiatric disorders.
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23
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Zhou L, Sun WL, Young AB, Lee K, McGinty JF, See RE. Oxytocin reduces cocaine seeking and reverses chronic cocaine-induced changes in glutamate receptor function. Int J Neuropsychopharmacol 2014; 18:pyu009. [PMID: 25539504 PMCID: PMC4368863 DOI: 10.1093/ijnp/pyu009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Oxytocin, a neurohypophyseal neuropeptide, is a potential mediator and regulator of drug addiction. However, the cellular mechanisms of oxytocin in drug seeking remain unknown. METHODS In the present study, we used a self-administration/reinstatement model to study the effects of oxytocin on cocaine seeking and its potential interaction with glutamate function at the receptor level. RESULTS Systemic oxytocin dose-dependently reduced cocaine self-administration during various schedules of reinforcement, including fixed ratio 1, fixed ratio 5, and progressive ratio. Oxytocin also attenuated reinstatement to cocaine seeking induced by cocaine prime or conditioned cues. Western-blot analysis indicated that oxytocin increased phosphorylation of the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid-type glutamate receptor GluA1 subunit at the Ser 845 site with or without accompanying increases in phosphorylation of extracellular signal-regulated kinase, in several brain regions, including the prefrontal cortex, bed nucleus of the stria terminalis, amygdala, and dorsal hippocampus. Immunoprecipitation of oxytocin receptor and GluA1 subunit receptors further demonstrated a physical interaction between these 2 receptors, although the interaction was not influenced by chronic cocaine or oxytocin treatment. Oxytocin also attenuated sucrose seeking in a GluA1- or extracellular-signal-regulated kinase-independent manner. CONCLUSIONS These findings suggest that oxytocin mediates cocaine seeking through interacting with glutamate receptor systems via second messenger cascades in mesocorticolimbic regions.
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Affiliation(s)
- Luyi Zhou
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina (Drs Zhou, Sun, Young, Lee, McGinty, and See)
| | - Wei-Lun Sun
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina (Drs Zhou, Sun, Young, Lee, McGinty, and See)
| | - Amy B Young
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina (Drs Zhou, Sun, Young, Lee, McGinty, and See)
| | - Kunhee Lee
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina (Drs Zhou, Sun, Young, Lee, McGinty, and See)
| | - Jacqueline F McGinty
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina (Drs Zhou, Sun, Young, Lee, McGinty, and See)
| | - Ronald E See
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina (Drs Zhou, Sun, Young, Lee, McGinty, and See).
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24
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Pascoli V, Cahill E, Bellivier F, Caboche J, Vanhoutte P. Extracellular signal-regulated protein kinases 1 and 2 activation by addictive drugs: a signal toward pathological adaptation. Biol Psychiatry 2014; 76:917-26. [PMID: 24844603 DOI: 10.1016/j.biopsych.2014.04.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 04/03/2014] [Accepted: 04/10/2014] [Indexed: 01/25/2023]
Abstract
Addiction is a chronic and relapsing psychiatric disorder that is thought to occur in vulnerable individuals. Synaptic plasticity evoked by drugs of abuse in the so-called neuronal circuits of reward has been proposed to underlie behavioral adaptations that characterize addiction. By increasing dopamine in the striatum, addictive drugs alter the balance of dopamine and glutamate signals converging onto striatal medium-sized spiny neurons (MSNs) and activate intracellular events involved in long-term behavioral alterations. Our laboratory contributed to the identification of salient molecular changes induced by administration of addictive drugs to rodents. We pioneered the observation that a common feature of addictive drugs is to activate, by a double tyrosine/threonine phosphorylation, the extracellular signal-regulated kinases 1 and 2 (ERK1/2) in the striatum, which control a plethora of substrates, some of them being critically involved in cocaine-mediated molecular and behavioral adaptations. Herein, we review how the interplay between dopamine and glutamate signaling controls cocaine-induced ERK1/2 activation in MSNs. We emphasize the key role of N-methyl-D-aspartate receptor potentiation by D1 receptor to trigger ERK1/2 activation and its subsequent nuclear translocation where it modulates both epigenetic and genetic processes engaged by cocaine. We discuss how cocaine-induced long-term synaptic and structural plasticity of MSNs, as well as behavioral adaptations, are influenced by ERK1/2-controlled targets. We conclude that a better knowledge of molecular mechanisms underlying ERK1/2 activation by drugs of abuse and/or its role in long-term neuronal plasticity in the striatum may provide a new route for therapeutic treatment in addiction.
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Affiliation(s)
- Vincent Pascoli
- Department of Basic Neurosciences, University Medical Center, University of Geneva, Geneva, Switzerland
| | - Emma Cahill
- Institut de Biologie Paris, Seine, CNRS/UMR8246-INSERM/UMR-S1130, Université Pierre et Marie Curie
| | - Frank Bellivier
- Department of Adult Psychiatry, L׳Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Saint-Louis, Lariboisière, Fernand-Widal Sites; Unité de Formation et de Recherche de Médecine, Université Denis Diderot; Variability of the Response to Psychotropic Drugs, Institut National de la Santé et de la; Recherche Médicale, Paris; and Fondation FondaMental, Créteil, France
| | - Jocelyne Caboche
- Institut de Biologie Paris, Seine, CNRS/UMR8246-INSERM/UMR-S1130, Université Pierre et Marie Curie
| | - Peter Vanhoutte
- Institut de Biologie Paris, Seine, CNRS/UMR8246-INSERM/UMR-S1130, Université Pierre et Marie Curie.
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25
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Cruz FC, Javier Rubio F, Hope BT. Using c-fos to study neuronal ensembles in corticostriatal circuitry of addiction. Brain Res 2014; 1628:157-73. [PMID: 25446457 DOI: 10.1016/j.brainres.2014.11.005] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 10/27/2014] [Accepted: 11/01/2014] [Indexed: 01/02/2023]
Abstract
Learned associations between drugs and environment play an important role in addiction and are thought to be encoded within specific patterns of sparsely distributed neurons called neuronal ensembles. This hypothesis is supported by correlational data from in vivo electrophysiology and cellular imaging studies in relapse models in rodents. In particular, cellular imaging with the immediate early gene c-fos and its protein product Fos has been used to identify sparsely distributed neurons that were strongly activated during conditioned drug behaviors such as drug self-administration and context- and cue-induced reinstatement of drug seeking. Here we review how Fos and the c-fos promoter have been employed to demonstrate causal roles for Fos-expressing neuronal ensembles in prefrontal cortex and nucleus accumbens in conditioned drug behaviors. This work has allowed identification of unique molecular and electrophysiological alterations within Fos-expressing neuronal ensembles that may contribute to the development and expression of learned associations in addiction.
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Affiliation(s)
- Fabio C Cruz
- Behavioral Neuroscience Branch, IRP/NIDA/NIH/DHHS, 251 Bayview Blvd, Suite 200, Baltimore, MD 21224, United States
| | - F Javier Rubio
- Behavioral Neuroscience Branch, IRP/NIDA/NIH/DHHS, 251 Bayview Blvd, Suite 200, Baltimore, MD 21224, United States
| | - Bruce T Hope
- Behavioral Neuroscience Branch, IRP/NIDA/NIH/DHHS, 251 Bayview Blvd, Suite 200, Baltimore, MD 21224, United States.
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26
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Cadet JL, Brannock C, Jayanthi S, Krasnova IN. Transcriptional and epigenetic substrates of methamphetamine addiction and withdrawal: evidence from a long-access self-administration model in the rat. Mol Neurobiol 2014; 51:696-717. [PMID: 24939695 PMCID: PMC4359351 DOI: 10.1007/s12035-014-8776-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 06/01/2014] [Indexed: 01/06/2023]
Abstract
Methamphetamine use disorder is a chronic neuropsychiatric disorder characterized by recurrent binge episodes, intervals of abstinence, and relapses to drug use. Humans addicted to methamphetamine experience various degrees of cognitive deficits and other neurological abnormalities that complicate their activities of daily living and their participation in treatment programs. Importantly, models of methamphetamine addiction in rodents have shown that animals will readily learn to give themselves methamphetamine. Rats also accelerate their intake over time. Microarray studies have also shown that methamphetamine taking is associated with major transcriptional changes in the striatum measured within a short or longer time after cessation of drug taking. After a 2-h withdrawal time, there was increased expression of genes that participate in transcription regulation. These included cyclic AMP response element binding (CREB), ETS domain-containing protein (ELK1), and members of the FOS family of transcription factors. Other genes of interest include brain-derived neurotrophic factor (BDNF), tyrosine kinase receptor, type 2 (TrkB), and synaptophysin. Methamphetamine-induced transcription was found to be regulated via phosphorylated CREB-dependent events. After a 30-day withdrawal from methamphetamine self-administration, however, there was mostly decreased expression of transcription factors including junD. There was also downregulation of genes whose protein products are constituents of chromatin-remodeling complexes. Altogether, these genome-wide results show that methamphetamine abuse might be associated with altered regulation of a diversity of gene networks that impact cellular and synaptic functions. These transcriptional changes might serve as triggers for the neuropsychiatric presentations of humans who abuse this drug. Better understanding of the way that gene products interact to cause methamphetamine addiction will help to develop better pharmacological treatment of methamphetamine addicts.
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Affiliation(s)
- Jean Lud Cadet
- Molecular Neuropsychiatry Research Branch, Intramural Research Program, National Institute on Drug Abuse, NIH, DHHS, 251 Bayview Boulevard, Baltimore, MD, 21224, USA,
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27
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Luteolin inhibits behavioral sensitization by blocking methamphetamine-induced MAPK pathway activation in the caudate putamen in mice. PLoS One 2014; 9:e98981. [PMID: 24901319 PMCID: PMC4047057 DOI: 10.1371/journal.pone.0098981] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 05/08/2014] [Indexed: 12/15/2022] Open
Abstract
Goal To investigate the effect of luteolin on methamphetamine (MA)-induced behavioral sensitization and mitogen-activated protein kinase (MAPK) signal transduction pathway activation in mice. Methods Mice received a single dose of MA to induce hyperactivity or repeated intermittent intraperitoneal injections of MA to establish an MA-induced behavioral sensitization mouse model. The effect of luteolin on the development and expression of MA-induced hyperactivity and behavioral sensitization was examined. The expression and activity of ΔFosB and the levels of phosphorylated extracellular signal-regulated kinase 1/2 (pERK1/2), phosphorylated c-Jun N-terminal kinase (pJNK), and phosphorylated p38 mitogen-activated protein kinase (pp38) in the caudate putamen (CPu) were measured by western blot. Results Luteolin significantly decreased hyperactivity as well as the development and expression of MA-induced behavioral sensitization in mice. ΔFosB, pERK1/2, and pJNK levels in the CPu were higher in MA-treated mice than in control mice, whereas the pp38 level did not change. Injection of luteolin inhibited the MA-induced increase in ΔFosB, pERK1/2, and pJNK levels, but did not affect the pp38 level. Conclusions Luteolin inhibits MA-induced hyperactivity and behavioral sensitization in mice through the ERK1/2/ΔFosB pathway. Furthermore, the JNK signaling pathway might be involved in MA-induced neurodegeneration in the CPu, and luteolin inhibits this process.
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28
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Miszkiel J, Detka J, Cholewa J, Frankowska M, Nowak E, Budziszewska B, Przegaliński E, Filip M. The effect of active and passive intravenous cocaine administration on the extracellular signal-regulated kinase (ERK) activity in the rat brain. Pharmacol Rep 2014; 66:630-7. [PMID: 24948065 DOI: 10.1016/j.pharep.2014.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 02/10/2014] [Indexed: 01/03/2023]
Abstract
According to a current hypothesis of learning processes, recent papers pointed out to an important role of the extracellular signal-regulated kinase (ERK), in drug addiction. We employed the Western blotting techniques to examine the ERK activity immediately after cocaine iv self-administration and in different drug-free withdrawal periods in rats. To distinguish motivational vs. pharmacological effects of the psychostimulant intake, a "yoked" procedure was used. Animals were decapitated after 14 daily cocaine self-administration sessions or on the 1st, 3rd or 10th extinction days. At each time point the activity of the ERK was assessed in several brain structures, including the prefrontal cortex, hippocampus, dorsal striatum and nucleus accumbens. Passive, repeated iv cocaine administration resulted in a 45% increase in ERK phosphorylation in the hippocampus while cocaine self-administration did not change brain ERK activity. On the 1st day of extinction, the activity of the ERK in the prefrontal cortex was decreased in rats with a history of cocaine chronic intake: by 66% for "active" cocaine group and by 35% for "yoked" cocaine group. On the 3rd day the reduction in the ERK activity (25-34%) was observed in the hippocampus for both cocaine-treated groups, and also in the nucleus accumbens for "yoked" cocaine group (40%). On the 10th day of extinction there was no significant alteration in ERK activity in any group of rats. Our findings suggest that cortical ERK is involved in cocaine seeking behavior in rats. They also indicate the time and regional adaptations in this enzyme activity after cocaine withdrawal.
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Affiliation(s)
- Joanna Miszkiel
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Jan Detka
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Joanna Cholewa
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Małgorzata Frankowska
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Ewa Nowak
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Bogusława Budziszewska
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Edmund Przegaliński
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Małgorzata Filip
- Laboratory of Drug Addiction Pharmacology, Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland.
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Ciccarelli A, Giustetto M. Role of ERK signaling in activity-dependent modifications of histone proteins. Neuropharmacology 2014; 80:34-44. [PMID: 24486378 DOI: 10.1016/j.neuropharm.2014.01.039] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 01/20/2014] [Accepted: 01/21/2014] [Indexed: 11/19/2022]
Abstract
It is well-established that neuronal intracellular signaling governed by the extracellular signal-regulated kinase (ERK/MAPK) plays a crucial role in long-term adaptive changes that occur during cognitive processes. ERK is a downstream component of a conserved signaling module that is activated by the serine/threonine kinase, Raf, which activates the MAPK/ERK kinase (MEK)1/2 protein kinases, which, in turn, activate ERK1/2. This signaling pathway has been reported to be activated in numerous physiological conditions due to a variety of stimuli, ranging from the activation of ionotropic glutamatergic receptors to metabotropic dopaminergic receptors and neurotrophin receptors. Interestingly, activated ERK can have early and late downstream effects at both the nuclear and synaptic levels. Locally, ERK signaling results in transient changes in the efficacy of synaptic transmission by modifying both pre- and post-synaptic targets. Once translocated into the nucleus, ERK signaling may control transcription by targeting several different regulators of gene expression such as transcription factors and histone proteins. ERK function is considered fundamental in processes such as long-term memory storage and drug addiction, by means of its role in activity-dependent epigenetic modifications that occur in the brain. In this review, we summarize the current understanding of ERK action in the neuroepigenetic processes underlying physiological responses, cognitive processes and drug addiction.
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Affiliation(s)
- Alessandro Ciccarelli
- University of Turin, Department of Neuroscience, C.so M. D'Azeglio 52, 10126 Turin, Italy
| | - Maurizio Giustetto
- University of Turin, Department of Neuroscience, C.so M. D'Azeglio 52, 10126 Turin, Italy; National Institute of Neuroscience-Italy, C.so M. D'Azeglio 52, 10126 Turin, Italy.
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Cahill E, Salery M, Vanhoutte P, Caboche J. Convergence of dopamine and glutamate signaling onto striatal ERK activation in response to drugs of abuse. Front Pharmacol 2014; 4:172. [PMID: 24409148 PMCID: PMC3884214 DOI: 10.3389/fphar.2013.00172] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 12/19/2013] [Indexed: 12/31/2022] Open
Abstract
Despite their distinct targets, all addictive drugs commonly abused by humans evoke increases in dopamine (DA) concentration within the striatum. The main DA Guanine nucleotide binding protein couple receptors (GPCRs) expressed by medium-sized spiny neurons of the striatum are the D1R and D2R, which are positively and negatively coupled to cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) signaling, respectively. These two DA GPCRs are largely segregated into distinct neuronal populations, where they are co-expressed with glutamate receptors in dendritic spines. Direct and indirect interactions between DA GPCRs and glutamate receptors are the molecular basis by which DA modulates glutamate transmission and controls striatal plasticity and behavior induced by drugs of abuse. A major downstream target of striatal D1R is the extracellular signal-regulated kinase (ERK) kinase pathway. ERK activation by drugs of abuse behaves as a key integrator of D1R and glutamate NMDAR signaling. Once activated, ERK can trigger chromatin remodeling and induce gene expression that permits long-term cellular alterations and drug-induced morphological and behavioral changes. Besides the classical cAMP/PKA pathway, downstream of D1R, recent evidence implicates a cAMP-independent crosstalk mechanism by which the D1R potentiates NMDAR-mediated calcium influx and ERK activation. The mounting evidence of reciprocal modulation of DA and glutamate receptors adds further intricacy to striatal synaptic signaling and is liable to prove relevant for addictive drug-induced signaling, plasticity, and behavior. Herein, we review the evidence that built our understanding of the consequences of this synergistic signaling for the actions of drugs of abuse.
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Affiliation(s)
- Emma Cahill
- UMRS 952, INSERM, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; UMR7224, CNRS, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; University Pierre and Marie Curie-Paris 6 Paris, France
| | - Marine Salery
- UMRS 952, INSERM, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; UMR7224, CNRS, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; University Pierre and Marie Curie-Paris 6 Paris, France
| | - Peter Vanhoutte
- UMRS 952, INSERM, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; UMR7224, CNRS, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; University Pierre and Marie Curie-Paris 6 Paris, France
| | - Jocelyne Caboche
- UMRS 952, INSERM, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; UMR7224, CNRS, Physiopathologie des Maladies du Système Nerveux Central Paris, France ; University Pierre and Marie Curie-Paris 6 Paris, France
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Veyrac A, Besnard A, Caboche J, Davis S, Laroche S. The transcription factor Zif268/Egr1, brain plasticity, and memory. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2014; 122:89-129. [PMID: 24484699 DOI: 10.1016/b978-0-12-420170-5.00004-0] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
The capacity to remember our past experiences and organize our future draws on a number of cognitive processes that allow our brain to form and store neural representations that can be recalled and updated at will. In the brain, these processes require mechanisms of neural plasticity in the activated circuits, brought about by cellular and molecular changes within the neurons activated during learning. At the cellular level, a wealth of experimental data accumulated in recent years provides evidence that signaling from synapses to nucleus and the rapid regulation of the expression of immediate early genes encoding inducible, regulatory transcription factors is a key step in the mechanisms underlying synaptic plasticity and the modification of neural networks required for the laying down of memories. In the activated neurons, these transcriptional events are thought to mediate the activation of selective gene programs and subsequent synthesis of proteins, leading to stable functional and structural remodeling of the activated networks, so that the memory can later be reactivated upon recall. Over the past few decades, novel insights have been gained in identifying key transcriptional regulators that can control the genomic response of synaptically activated neurons. Here, as an example of this approach, we focus on one such activity-dependent transcription factor, Zif268, known to be implicated in neuronal plasticity and memory formation. We summarize current knowledge about the regulation and function of Zif268 in different types of brain plasticity and memory processes.
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Affiliation(s)
- Alexandra Veyrac
- CNRS, Centre de Neurosciences Paris-Sud, UMR 8195, Orsay, France; Centre de Neurosciences Paris-Sud, Univ Paris-Sud, UMR 8195, Orsay, France
| | - Antoine Besnard
- Harvard Stem Cell Institute, Harvard Medical School, Center for Regenerative Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jocelyne Caboche
- INSERM, UMRS 952, Physiopathologie des Maladies du Système Nerveux Central, Paris, France; CNRS, UMR7224, Physiopathologie des Maladies du Système Nerveux Central, Paris, France; UPMC University Paris 6, Paris, France
| | - Sabrina Davis
- CNRS, Centre de Neurosciences Paris-Sud, UMR 8195, Orsay, France; Centre de Neurosciences Paris-Sud, Univ Paris-Sud, UMR 8195, Orsay, France
| | - Serge Laroche
- CNRS, Centre de Neurosciences Paris-Sud, UMR 8195, Orsay, France; Centre de Neurosciences Paris-Sud, Univ Paris-Sud, UMR 8195, Orsay, France
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Vaisid T, Kosower NS. Calpastatin is upregulated in non-immune neuronal cells via toll-like receptor 2 (TLR2) pathways by lipid-containing agonists. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:2369-77. [DOI: 10.1016/j.bbamcr.2013.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 05/15/2013] [Accepted: 06/05/2013] [Indexed: 01/15/2023]
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Sillivan SE, Whittard JD, Jacobs MM, Ren Y, Mazloom AR, Caputi FF, Horvath M, Keller E, Ma’ayan A, Pan YX, Chiang LW, Hurd YL. ELK1 transcription factor linked to dysregulated striatal mu opioid receptor signaling network and OPRM1 polymorphism in human heroin abusers. Biol Psychiatry 2013; 74:511-9. [PMID: 23702428 PMCID: PMC4070524 DOI: 10.1016/j.biopsych.2013.04.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 04/12/2013] [Accepted: 04/12/2013] [Indexed: 12/21/2022]
Abstract
BACKGROUND Abuse of heroin and prescription opiate medications has grown to disturbing levels. Opioids mediate their effects through mu opioid receptors (MOR), but minimal information exists regarding MOR-related striatal signaling relevant to the human condition. The striatum is a structure central to reward and habitual behavior and neurobiological changes in this region are thought to underlie the pathophysiology of addiction disorders. METHODS We examined molecular mechanisms related to MOR in postmortem human brain striatal specimens from a homogenous European Caucasian population of heroin abusers and control subjects and in an animal model of heroin self-administration. Expression of ets-like kinase 1 (ELK1) was examined in relation to polymorphism of the MOR gene OPRM1 and drug history. RESULTS A characteristic feature of heroin abusers was decreased expression of MOR and extracellular regulated kinase signaling networks, concomitant with dysregulation of the downstream transcription factor ELK1. Striatal ELK1 in heroin abusers associated with the polymorphism rs2075572 in OPRM1 in a genotype dose-dependent manner and correlated with documented history of heroin use, an effect reproduced in an animal model that emphasizes a direct relationship between repeated heroin exposure and ELK1 dysregulation. A central role of ELK1 was evidenced by an unbiased whole transcriptome microarray that revealed ~20% of downregulated genes in human heroin abusers are ELK1 targets. Using chromatin immune precipitation, we confirmed decreased ELK1 promoter occupancy of the target gene Use1. CONCLUSIONS ELK1 is a potential key transcriptional regulatory factor in striatal disturbances associated with heroin abuse and relevant to genetic mutation of OPRM1.
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Affiliation(s)
- Stephanie E. Sillivan
- Department of Psychiatry and Neuroscience, Mount Sinai School of Medicine, New York, New York 10029
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, New York 10029
| | - John D. Whittard
- Department of Psychiatry and Neuroscience, Mount Sinai School of Medicine, New York, New York 10029
| | - Michelle M. Jacobs
- Department of Psychiatry and Neuroscience, Mount Sinai School of Medicine, New York, New York 10029
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, New York 10029
| | - Yanhua Ren
- Department of Psychiatry and Neuroscience, Mount Sinai School of Medicine, New York, New York 10029
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, New York 10029
| | - Amin R. Mazloom
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, New York 10029
| | - Francesca F. Caputi
- Department of Psychiatry and Neuroscience, Mount Sinai School of Medicine, New York, New York 10029
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, New York 10029
| | - Monika Horvath
- Department of Forensic Medicine, Uppsala University, Uppsala, Sweden
- Department of Forensic Medicine, Semmelweis University, Budapest, Hungary
| | - Eva Keller
- Department of Forensic Medicine, Semmelweis University, Budapest, Hungary
| | - Avi Ma’ayan
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, New York 10029
| | - Ying-Xian Pan
- Department of Neurology and the Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York 10065
| | | | - Yasmin L. Hurd
- Department of Psychiatry and Neuroscience, Mount Sinai School of Medicine, New York, New York 10029
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, New York 10029
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Kim SH, Yu HS, Park HG, Ha K, Kim YS, Shin SY, Ahn YM. Intracerebroventricular administration of ouabain, a Na/K-ATPase inhibitor, activates mTOR signal pathways and protein translation in the rat frontal cortex. Prog Neuropsychopharmacol Biol Psychiatry 2013; 45:73-82. [PMID: 23643758 DOI: 10.1016/j.pnpbp.2013.04.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 04/02/2013] [Accepted: 04/21/2013] [Indexed: 11/16/2022]
Abstract
Intracerebroventricular (ICV) injection of ouabain, a specific Na/K-ATPase inhibitor, induces behavioral changes in rats in a putative animal model of mania. The binding of ouabain to Na/K-ATPase affects signaling molecules in vitro, including ERK1/2 and Akt, which promote protein translation. We have also reported that ERK1/2 and Akt in the brain are involved in the ouabain-induced hyperactivity of rats. In this study, rats were given an ICV injection of ouabain, and then their frontal cortices were examined to determine the effects of ouabain on the mTOR/p70S6K/S6 signaling pathway and protein translation, which are important in modifications of neural circuits and behavior. Rats showed ouabain-induced hyperactivity up to 8h following injection, and increased phosphorylation levels of mTOR, p70S6K, S6, eIF4B, and 4E-BP at 1, 2, 4, and 8h following ouabain injection. Immunohistochemical analyses revealed that increased p-S6 immunoreactivity in the cytoplasm of neurons by ouabain was evident in the prefrontal, cingulate, and orbital cortex. These findings suggested increased translation initiation in response to ouabain. The rate of protein synthesis was measured as the amount of [(3)H]-leucine incorporation in the cell-free extracts of frontal cortical tissues, and showed a significant increase at 8h after ouabain injection. These results suggest that ICV injection of ouabain induced activation of the protein translation initiation pathway regulated by ERK1/2 and Akt, and prolonged hyperactivity in rats. In conclusion, protein translation pathway could play an important role in ouabain-induced hyperactivity in a rodent model of mania.
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Affiliation(s)
- Se Hyun Kim
- Department of Psychiatry and Behavioral Science & Institute of Human Behavioral Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
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Rotllant D, Pastor-Ciurana J, Armario A. Stress-induced brain histone H3 phosphorylation: contribution of the intensity of stressors and length of exposure. J Neurochem 2013; 125:599-609. [DOI: 10.1111/jnc.12214] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 02/19/2013] [Accepted: 02/19/2013] [Indexed: 02/02/2023]
Affiliation(s)
- David Rotllant
- Institute of Neurosciences; Red de Transtornos Adictivos (RTA, Instituto de Salud Carlos III); and Animal Physiology Unit (School of Biosciences); Universitat Autònoma de Barcelona; Barcelona Spain
| | - Jordi Pastor-Ciurana
- Institute of Neurosciences; Red de Transtornos Adictivos (RTA, Instituto de Salud Carlos III); and Animal Physiology Unit (School of Biosciences); Universitat Autònoma de Barcelona; Barcelona Spain
| | - Antonio Armario
- Institute of Neurosciences; Red de Transtornos Adictivos (RTA, Instituto de Salud Carlos III); and Animal Physiology Unit (School of Biosciences); Universitat Autònoma de Barcelona; Barcelona Spain
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Walker AK, Ibia IE, Zigman JM. Disruption of cue-potentiated feeding in mice with blocked ghrelin signaling. Physiol Behav 2012; 108:34-43. [PMID: 23063723 DOI: 10.1016/j.physbeh.2012.10.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 10/04/2012] [Indexed: 12/22/2022]
Abstract
The peptide hormone ghrelin regulates a variety of eating behaviors. Not only does it potently increase intake of freely-available food, but it also shifts food preference toward diets rich in fat, enhances operant responding for food rewards, and induces conditioned place preference for food rewards. Here, we postulated that ghrelin also enables cue-potentiated feeding, in which eating is enhanced upon presentation of a food-conditioned stimulus. To test this hypothesis, a novel cue-potentiated feeding protocol adapted for use in mice was designed and validated, and then the effects of pharmacologic ghrelin receptor (GHSR) antagonism and GHSR transcriptional blockade (as occurs in GHSR-null mice) were assessed. Sated C57BL/6J mice indeed demonstrated cue-potentiated intake of grain-based pellets specifically upon presentation of a positive conditioned stimulus (CS+) but not a negative conditioned stimulus (CS-). Treatment with a GHSR antagonist blocked potentiated feeding in sated C57BL/6J mice in response to the CS+. In contrast, while GHSR-null mice also lacked a potentiation of feeding specifically in response to the CS+, they displayed an enhanced intake of pellets in response to both the positive and negative conditioned stimuli. The pattern of immediate early gene expression within the basolateral amygdala - a brain region previously linked to cue-potentiated feeding - paralleled the observed behavior of these mice, suggesting uncharacteristic activation of the amygdala in response to negative conditioned stimuli in GHSR-null mice as compared to wild-type littermates. Thus, although the observed disruptions in cue-potentiated feeding are different depending upon whether GHSR activity or GHSR expression is blocked, a key role for GHSRs in establishing a specific positive cue-food association has now been established.
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Affiliation(s)
- Angela K Walker
- Department of Internal Medicine (Divisions of Hypothalamic Research and of Endocrinology & Metabolism), The University of Texas Southwestern Medical Center, Dallas, TX 75390-9077, United States
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Breast tumor-associated osteoblast-derived CXCL5 increases cancer progression by ERK/MSK1/Elk-1/snail signaling pathway. Oncogene 2012; 32:4436-47. [PMID: 23045282 DOI: 10.1038/onc.2012.444] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 08/13/2012] [Accepted: 08/16/2012] [Indexed: 12/17/2022]
Abstract
The skeleton is the most common metastatic site for breast cancer, with bone metastasis causing pain as well as risk of pathological fractures. Interaction between tumors and the bone microenvironment creates a vicious cycle that accelerates both bone destruction and cancer progression. This study is the first to analyze the soluble factors secreted by breast tumor-associated osteoblasts (TAOBs), which are responsible for promoting cancer progression. The addition of CXCL5 (chemokine (C-X-C motif) ligand 5), present in large amounts in TAOB-condition medium (TAOB-CM), mimicked the inductive effect of TAOB-CM on breast cancer epithelial-mesenchymal transition, migration and invasion. In contrast, inhibition of CXCL5 in OBs decreased TAOB-mediated cancer progression. Inducement of MCF-7 and MDA-MB-231 cancer progression by TAOB-derived CXCL5 is associated with increased Raf/MEK/ERK activation, and mitogen- and stress-activated protein kinase 1 (MSK1) and Elk-1 phosphorylation, as well as Snail upregulation. Activation of Elk-1 facilitates recruitment of phosphorylated MSK1, which in turn enhances histone H3 acetylation and phosphorylation (serine 10) of Snail promoter, resulting in Snail enhancement and E-cadherin downregulation. Moreover, mice treated with anti-CXCL5 antibodies showed decreased metastasis of 4T1 breast cancer cells. Our study suggests that inhibition of CXCL5-mediated ERK/Snail signaling is an attractive therapeutic target for treating metastases in breast cancer patients.
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Serum response factor and cAMP response element binding protein are both required for cocaine induction of ΔFosB. J Neurosci 2012; 32:7577-84. [PMID: 22649236 DOI: 10.1523/jneurosci.1381-12.2012] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The molecular mechanism underlying induction by cocaine of ΔFosB, a transcription factor important for addiction, remains unknown. Here, we demonstrate a necessary role for two transcription factors, cAMP response element binding protein (CREB) and serum response factor (SRF), in mediating this induction within the mouse nucleus accumbens (NAc), a key brain reward region. CREB and SRF are both activated in NAc by cocaine and bind to the fosB gene promoter. Using viral-mediated Cre recombinase expression in the NAc of single- or double-floxed mice, we show that deletion of both transcription factors from this brain region completely blocks cocaine induction of ΔFosB in NAc, whereas deletion of either factor alone has no effect. Furthermore, deletion of both SRF and CREB from NAc renders animals less sensitive to the rewarding effects of moderate doses of cocaine when tested in the conditioned place preference (CPP) procedure and also blocks locomotor sensitization to higher doses of cocaine. Deletion of CREB alone has the opposite effect and enhances both cocaine CPP and locomotor sensitization. In contrast to ΔFosB induction by cocaine, ΔFosB induction in NAc by chronic social stress, which we have shown previously requires activation of SRF, is unaffected by the deletion of CREB alone. These surprising findings demonstrate the involvement of distinct transcriptional mechanisms in mediating ΔFosB induction within this same brain region by cocaine versus stress. Our results also establish a complex mode of regulation of ΔFosB induction in response to cocaine, which requires the concerted activities of both SRF and CREB.
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Rothe K, Solinski HJ, Boekhoff I, Gudermann T, Breit A. Morphine Activates the E Twenty Six-Like Transcription Factor-1/Serum Response Factor Pathway via Extracellular Signal-Regulated Kinases 1/2 in F11 Cells Derived from Dorsal Root Ganglia Neurons. J Pharmacol Exp Ther 2012; 342:41-52. [DOI: 10.1124/jpet.112.192757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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