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Di Ciano P, Hendershot CS, Le Foll B. Therapeutic Potential of Histamine H3 Receptors in Substance Use Disorders. Curr Top Behav Neurosci 2022; 59:169-191. [PMID: 35704272 DOI: 10.1007/7854_2022_372] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Substance use disorders are a leading cause of morbidity and mortality, and available pharmacological treatments are of modest efficacy. Histamine is a biogenic amine with four types of receptors. The histamine H3 receptor (H3R) is an autoreceptor and also an heteroreceptor. H3Rs are highly expressed in the basal ganglia, hippocampus and cortex, and regulate a number of neurotransmitters including acetylcholine, norepinephrine, GABA and dopamine. Its function and localization suggest that the H3R may be relevant to a number of psychiatric disorders and could represent a potential therapeutic target for substance use disorders. The purpose of the present review is to summarize preclinical studies investigating the effects of H3R agonists and antagonists on animal models of alcohol, nicotine and psychostimulant use. At present, the effects of H3R antagonists such as thioperamide, pitolisant or ciproxifan have been investigated in drug-induced locomotion, conditioned place preference, drug self-administration, reinstatement, sensitization and drug discrimination. For alcohol and nicotine, the effects of H3R ligands on two-bottle choice and memory tasks, respectively, have also been investigated. The results of these studies are inconsistent. For alcohol, H3R antagonists generally decreased the reward-related properties of ethanol, which suggests that H3R antagonists may be effective as a treatment option for alcohol use disorder. However, the effects of H3R antagonists on nicotine and psychostimulant motivation and reward are less clear. H3R antagonists potentiated the abuse-related properties of nicotine, but only a handful of studies have been conducted. For psychostimulants, evidence is mixed and suggests that more research is needed to establish whether H3R antagonists are a viable therapeutic option. The fact that different drugs of abuse have different brain targets may explain the differential effects of H3R ligands.
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Affiliation(s)
- Patricia Di Ciano
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Christian S Hendershot
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Bernard Le Foll
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
- Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Translational Addiction Research Laboratory, Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
- Addictions Division, Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada.
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Kim JM, Han B, Min HK, Yun J, Kim YH, Choi SO, Kang MS. Rewarding and reinforcing effects of two dissociative-based new psychoactive substances, deschloroketamine and diphenidine, in mice. Pharmacol Biochem Behav 2022; 213:173333. [DOI: 10.1016/j.pbb.2022.173333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 10/19/2022]
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The Role of Dopamine D3 Receptors in Tobacco Use Disorder: A Synthesis of the Preclinical and Clinical Literature. Curr Top Behav Neurosci 2022; 60:203-228. [PMID: 36173599 DOI: 10.1007/7854_2022_392] [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: 01/05/2023]
Abstract
Tobacco smoking is a significant cause of preventable morbidity and mortality globally. Current pharmacological approaches to treat tobacco use disorder (TUD) are only partly effective and novel approaches are needed. Dopamine has a well-established role in substance use disorders, including TUD, and there has been a long-standing interest in developing agents that target the dopaminergic system to treat substance use disorders. Dopamine has 5 receptor subtypes (DRD1 to DRD5). Given the localization and safety profile of the dopamine receptor D3 (DRD3), it is of therapeutic potential for TUD. In this chapter, the preclinical and clinical literature investigating the role of DRD3 in processes relevant to TUD will be reviewed, including in nicotine reinforcement, drug reinstatement, conditioned stimuli and cue-reactivity, executive function, and withdrawal. Similarities and differences in findings from the animal and human work will be synthesized and findings will be discussed in relation to the therapeutic potential of targeting DRD3 in TUD.
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Ledesma JC, Manzanedo C, Aguilar MA. Cannabidiol prevents several of the behavioral alterations related to cocaine addiction in mice. Prog Neuropsychopharmacol Biol Psychiatry 2021; 111:110390. [PMID: 34157334 DOI: 10.1016/j.pnpbp.2021.110390] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/11/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022]
Abstract
Cocaine dependence is a highly prevalent disease in modern society and lacks an effective treatment. Cannabidiol (CBD), a major non-psychoactive constituent of Cannabis sativa, has been shown to be a promising tool in the management of some neuropsychiatric disorders, including cocaine abuse. However, its therapeutic effects on the behavioral outcomes related to cocaine addiction remain unclear. The present research evaluates the effects of CBD (30, 60 and 120 mg/kg; injected intraperitoneally) on the acquisition, expression, extinction and reinstatement of cocaine (10 mg/kg)-induced conditioned place preference (CPP; Study 1); cocaine (25 mg/kg)-induced locomotor stimulation (Study 2); and cocaine withdrawal symptoms (Study 3) in male C57BL/6 J mice. The results show that CBD does not possess motivational properties in itself and does not modify the acquisition, expression or extinction of cocaine-induced CPP. Interestingly, when administered during the extinction phase of the cocaine-induced CPP, CBD (30 and 60 mg/kg) prevented priming-induced reinstatement of CPP. Moreover, CBD abolished cocaine-induced hyperactivity without altering the spontaneous locomotion of the animals. Furthermore, CBD (120 mg/kg) reduced the memory deficits induced by cocaine withdrawal in the object recognition test, though it did not reverse depressive-like symptoms measured in the tail suspension test. Overall, our data suggest that CBD can prevent the development of cocaine addiction, and, when administered during cocaine abstinence, may be of help in avoiding relapse to drug-seeking and in ameliorating the memory disturbances provoked by chronic consumption of cocaine.
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Affiliation(s)
- Juan Carlos Ledesma
- Unit of Research 'Neurobehavioural mechanisms and endophenotypes of addictive behaviour', Departamento de Psicobiología, Facultad de Psicología, Universitat de València, Valencia, Spain
| | - Carmen Manzanedo
- Red Temática de Investigación Cooperativa en Salud (RETICS), Red de Trastornos Adictivos, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain; Unidad de Investigación Psicobiología de las Drogodependencias, Departamento de Psicobiología, Facultad de Psicología, Universitat de València, Valencia, Spain
| | - María A Aguilar
- Unit of Research 'Neurobehavioural mechanisms and endophenotypes of addictive behaviour', Departamento de Psicobiología, Facultad de Psicología, Universitat de València, Valencia, Spain; Red Temática de Investigación Cooperativa en Salud (RETICS), Red de Trastornos Adictivos, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain.
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de Abreu MS, Costa F, Giacomini ACVV, Demin KA, Zabegalov KN, Maslov GO, Kositsyn YM, Petersen EV, Strekalova T, Rosemberg DB, Kalueff AV. Towards Modeling Anhedonia and Its Treatment in Zebrafish. Int J Neuropsychopharmacol 2021; 25:293-306. [PMID: 34918075 PMCID: PMC9017771 DOI: 10.1093/ijnp/pyab092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 11/11/2021] [Accepted: 12/14/2021] [Indexed: 11/14/2022] Open
Abstract
Mood disorders, especially depression, are a major cause of human disability. The loss of pleasure (anhedonia) is a common, severely debilitating symptom of clinical depression. Experimental animal models are widely used to better understand depression pathogenesis and to develop novel antidepressant therapies. In rodents, various experimental models of anhedonia have already been developed and extensively validated. Complementing rodent studies, the zebrafish (Danio rerio) is emerging as a powerful model organism to assess pathobiological mechanisms of affective disorders, including depression. Here, we critically discuss the potential of zebrafish for modeling anhedonia and studying its molecular mechanisms and translational implications.
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Affiliation(s)
- Murilo S de Abreu
- School of Pharmacy, Southwest University, Chongqing, China,Bioscience Institute, University of Passo Fundo, Passo Fundo, RS, Brazil,Laboratory of Cell and Molecular Biology and Neurobiology, Moscow Institute of Physics and Technology, Moscow, Russia
| | - Fabiano Costa
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Natural and Exact Sciences Center, Federal University of Santa Maria, Santa Maria, Brazil
| | - Ana C V V Giacomini
- Bioscience Institute, University of Passo Fundo, Passo Fundo, RS, Brazil,Graduate Program in Environmental Sciences, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Konstantin A Demin
- Drug Screening Platform, School of Pharmacy, Southwest University, Chongqing, China,Ural Federal University, Ekaterinburg, Russia,Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, Russia
| | | | - Gleb O Maslov
- Ural Federal University, Ekaterinburg, Russia,Neurobiology Program, Sirius University of Science and Technology, Sochi, Russia
| | - Yuriy M Kositsyn
- Neurobiology Program, Sirius University of Science and Technology, Sochi, Russia
| | - Elena V Petersen
- Laboratory of Cell and Molecular Biology and Neurobiology, Moscow Institute of Physics and Technology, Moscow, Russia
| | - Tatiana Strekalova
- Department of Preventive Medicine, Maastricht Medical Center Annadal, Maastricht, Netherlands,Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, University of Maastricht, Maasticht, the Netherlands,Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov 1st Moscow State Medical University, Moscow, Russia,Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Denis B Rosemberg
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Natural and Exact Sciences Center, Federal University of Santa Maria, Santa Maria, Brazil,Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, Santa Maria, Brazil
| | - Allan V Kalueff
- School of Pharmacy, Southwest University, Chongqing, China,Drug Screening Platform, School of Pharmacy, Southwest University, Chongqing, China,Ural Federal University, Ekaterinburg, Russia,Russian Research Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia,Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, Russia,Novosibirsk State University, Novosibisk, Russia,Scientific Research Institute of Neurosciences and Medicine, Novosibirsk, Russia,Correspondence: Allan V. Kalueff, PhD, School of Pharmacy, Southwest University, Chongqing, China ()
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Barr HJ, Wall EM, Woolley SC. Dopamine in the songbird auditory cortex shapes auditory preference. Curr Biol 2021; 31:4547-4559.e5. [PMID: 34450091 DOI: 10.1016/j.cub.2021.08.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 06/22/2021] [Accepted: 08/02/2021] [Indexed: 01/10/2023]
Abstract
Vocal communication signals can provide listeners with information about the signaler and elicit motivated responses. Auditory cortical and mesolimbic reward circuits are often considered to have distinct roles in these processes, with auditory cortical circuits responsible for detecting and discriminating sounds and mesolimbic circuits responsible for ascribing salience and modulating preference for those sounds. Here, we investigated whether dopamine within auditory cortical circuits themselves can shape the incentive salience of a vocal signal. Female zebra finches demonstrate natural preferences for vocal signals produced by males ("songs"), and we found that brief pairing of passive song playback with pharmacological dopamine manipulations in the secondary auditory cortex significantly altered song preferences. In particular, pairing passive song playback with retrodialysis of dopamine agonists into the auditory cortex enhanced preferences for less-preferred songs. Plasticity of song preferences by dopamine persisted for at least 1 week and was mediated by D1 receptors. In contrast, song preferences were not shaped by norepinephrine. In line with this, while we found that the ventral tegmental area, substantia nigra pars compacta, and locus coeruleus all project to the secondary auditory cortex, only dopamine-producing neurons in the ventral tegmental area differentially responded to preferred versus less-preferred songs. In contrast, norepinephrine neurons in the locus coeruleus increased expression of activity-dependent neural markers for both preferred and less-preferred songs. These data suggest that dopamine acting directly in sensory-processing areas can shape the incentive salience of communication signals.
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Affiliation(s)
- Helena J Barr
- Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada; Center for Research on Brain, Language, and Music, McGill University, Montreal, QC, Canada
| | - Erin M Wall
- Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada; Center for Research on Brain, Language, and Music, McGill University, Montreal, QC, Canada
| | - Sarah C Woolley
- Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada; Center for Research on Brain, Language, and Music, McGill University, Montreal, QC, Canada; Department of Biology, McGill University, Montreal, QC, Canada.
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Similar role of mPFC orexin-1 receptors in the acquisition and expression of morphine- and food-induced conditioned place preference in male rats. Neuropharmacology 2021; 198:108764. [PMID: 34450116 DOI: 10.1016/j.neuropharm.2021.108764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 08/17/2021] [Accepted: 08/21/2021] [Indexed: 01/19/2023]
Abstract
Self-control problems are a typical character of drug addiction and excessive food consumption and it has been shown that natural rewards and drugs of abuse share parts of the same neural substrate and reward processing in the brain. Different brain areas are involved in natural and drug reward processing including the mesolimbic pathway, amygdala, nucleus accumbens (NAc), and prefrontal cortex. Considering the important role of orexins in the addictive behavior and the presence of orexin-1 subtype receptors (Orx1R) in the medial prefrontal cortex (mPFC), this study investigated the role of mPFC in natural- and drug-reward seeking behaviors to deepen our understanding of possible similarities or differences. To induce food- or morphine-conditioned place preference (CPP), adult male Wistar rats underwent CPP testing and received intra-mPFC doses of SB334867 (3, 10, or 30 nM/0.5 μl DMSO 12%), as an Orx1R antagonist, during the acquisition or expression phases of the CPP test. Results indicated that microinjection of Orx1R antagonist into the mPFC had similar effects on both morphine- and food-induced CPP and attenuated CPP scores in the acquisition and expression phases of the CPP test. The data demonstrated that Orx1Rs in the mPFC regulate the reward-related effects of morphine- and food-induced reward.
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Maccioni R, Cottiglia F, Maccioni E, Talani G, Sanna E, Bassareo V, Kasture SB, Acquas E. The biologically active compound of Withania somnifera (L.) Dunal, docosanyl ferulate, is endowed with potent anxiolytic properties but devoid of typical benzodiazepine-like side effects. J Psychopharmacol 2021; 35:1277-1284. [PMID: 33934670 DOI: 10.1177/02698811211008588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Clinical and experimental studies support the therapeutic potential of Withania somnifera (WS) (L.) Dunal on anxiety disorders. This potential is attributable to components present in different plant extracts; however, the individual compound(s) endowed with specific anxiolytic effects and potential modulatory activity of the GABAA receptor complex (GABAAR) have remained unidentified until the recent isolation from a WS methanolic root extract of some GABAAR-active compounds, including the long alkyl-chain ferulic acid ester, docosanyl ferulate (DF). AIMS This study was designed to assess whether DF (0.05, 0.25 and 2 mg/kg), similarly to diazepam (2 mg/kg), may exert anxiolytic effects, whether these effects may be significantly blocked by the benzodiazepine antagonist flumazenil (10 mg/kg) and whether DF may lack some of the benzodiazepines' typical motor, cognitive and motivational side effects. METHODS The behavioural paradigms Elevated Plus Maze, Static Rods, Novel Object Recognition, Place Conditioning and potentiation of ethanol-induced Loss of Righting Reflex were applied on male CD-1 mice. RESULTS Similarly to diazepam, DF exerts anxiolytic effects that are blocked by flumazenil. Moreover, at the full anxiolytic dose of 2 mg/kg, DF lacks typical benzodiazepine-like side effects on motor and cognitive performances and on place conditioning. Moreover, DF fails to potentiate ethanol's (3 g/kg) depressant activity at the ethanol-induced Loss of Righting Reflex paradigm. CONCLUSIONS These data point to DF as an effective benzodiazepine-like anxiolytic compound that, in light of its lack of motor, mnemonic and motivational side effects, could be a suitable candidate for the treatment of anxiety disorders.
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Affiliation(s)
- Riccardo Maccioni
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Filippo Cottiglia
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Elias Maccioni
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Giuseppe Talani
- Institute of Neuroscience, National Research Council (C.N.R.), University Campus, Cagliari, Italy
| | - Enrico Sanna
- Institute of Neuroscience, National Research Council (C.N.R.), University Campus, Cagliari, Italy
- Center of Excellence for the Study of Neurobiology of Addiction, University of Cagliari, Cagliari, Italy
| | - Valentina Bassareo
- Center of Excellence for the Study of Neurobiology of Addiction, University of Cagliari, Cagliari, Italy
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | | | - Elio Acquas
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
- Center of Excellence for the Study of Neurobiology of Addiction, University of Cagliari, Cagliari, Italy
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Cannabinoid Receptor Type 1 Regulates Drug Reward Behavior via Glutamate Decarboxylase 67 Transcription. Int J Mol Sci 2021; 22:ijms221910486. [PMID: 34638827 PMCID: PMC8508987 DOI: 10.3390/ijms221910486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/19/2021] [Accepted: 09/23/2021] [Indexed: 02/06/2023] Open
Abstract
Interaction of cannabinoid receptor type 1 (CB1) and GABAergic neuronal activity is involved in drug abuse-related behavior. However, its role in drug-dependent Pavlovian conditioning is not well understood. In this study, we aimed to evaluate the effects of a CB1 agonist, JWH-210, on the development of conditioned place preference (CPP)-induced by methamphetamine (METH). Pretreatment with a synthetic cannabinoid, JWH-210 (CB1 agonist), increased METH-induced CPP score and METH-induced dopamine release in acute striatal slices. Interestingly, CB1 was expressed in glutamate decarboxylase 67 (GAD67) positive cells, and overexpression of CB1 increased GAD67 expression, while CB1 knockdown reduced GAD67 expression in vivo and in vitro. GAD67 is known as an enzyme involved in the synthesis of GABA. CB1 knockdown in the mice striatum increased METH-induced CPP. When GAD67 decreased in the mice striatum, mRNA level of CB1 did not change, suggesting that CB1 can regulate GAD67 expression. GAD67 knockdown in the mouse striatum augmented apomorphine (dopamine receptor D2 agonist)–induced climbing behavior and METH-induced CPP score. Moreover, in the human brain, mRNA level of GAD67 was found to be decreased in drug users. Therefore, we suggest that CB1 potentiates METH-induced CPP through inhibitory GABAergic regulation of dopaminergic neuronal activity.
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Wolter M, Lapointe T, Melanson B, Baidoo N, Francis T, Winters BD, Leri F. Memory enhancing effects of nicotine, cocaine, and their conditioned stimuli; effects of beta-adrenergic and dopamine D2 receptor antagonists. Psychopharmacology (Berl) 2021; 238:2617-2628. [PMID: 34175982 DOI: 10.1007/s00213-021-05884-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 05/27/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is evidence that post-training exposure to nicotine, cocaine, and their conditioned stimuli (CS), enhance memory consolidation in rats. The present study assessed the effects of blocking noradrenergic and dopaminergic receptors on nicotine and cocaine unconditioned and conditioned memory modulation. METHODS Males Sprague-Dawley rats tested on the spontaneous object recognition task received post-sample exposure to 0.4 mg/kg nicotine, 20 mg/kg cocaine, or their CSs, in combination with 5-10 mg/kg propranolol (PRO; beta-adrenergic antagonist) or 0.2-0.6 mg/kg pimozide (PIM; dopamine D2 receptor antagonist). The CSs were established by confining rats in a chamber (the CS +) after injections of 0.4 mg/kg nicotine, or 20 mg/kg cocaine, for 2 h and in another chamber (the CS -) after injections of vehicle, repeated over 10 days (5 drug/CS + and 5 vehicle/CS - pairings in total). Object memory was tested 72 h post sample in drug-free animals. RESULTS Co-administration of PRO or PIM blocked the memory-enhancing effects of post-training injections of nicotine, cocaine, and, importantly, exposure to their CSs. CONCLUSIONS These data suggest that nicotine, cocaine as well as their conditioned stimuli share actions on overlapping noradrenergic and dopaminergic systems to modulate memory consolidation.
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Affiliation(s)
- Michael Wolter
- Department of Psychology, Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - Thomas Lapointe
- Department of Psychology, Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - Brett Melanson
- Department of Psychology, Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - Nana Baidoo
- Department of Psychology, Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - Travis Francis
- Department of Psychology, Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - Boyer D Winters
- Department of Psychology, Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - Francesco Leri
- Department of Psychology, Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada.
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Madden JT, Reyna NC, Goranson EV, Gonzalez TA, Zavala AR, Pentkowski NS. Blocking serotonin 2A (5-HT 2A) receptors attenuates the acquisition of methamphetamine-induced conditioned place preference in adult female rats. Behav Brain Res 2021; 415:113521. [PMID: 34391796 DOI: 10.1016/j.bbr.2021.113521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 11/19/2022]
Abstract
Methamphetamine withdrawal can induce intense cravings leading to relapse. Contexts/cues paired with chronic methamphetamine use develop incentive motivational properties, promoting future drug-seeking and taking behavior. Research has shown that, in adult male rats, the selective 5-HT2A receptor antagonist M100907 attenuates the acquisition of methamphetamine-induced conditioned place preference (CPP), a measure that examines conditioned associations between the rewarding properties of drugs and contexts. However, these findings have not been extended to adult female rats. The present study investigated the effects of M100907 on the acquisition of methamphetamine-CPP in adult female rats. During conditioning, rats were administered M100907 (0, 0.025, 0.25 mg/kg, i.p.) 15 min before methamphetamine (1 mg/kg, i.p.) and then placed into their initially non-preferred chamber for 30 min, or administered saline and placed into their initially preferred chamber for 30 min. Conditioning sessions were separated by four hours. Following four days of conditioning, the effects of M100907 on the acquisition of methamphetamine-CPP were assessed during a 15 min drug-free test trial. Pretreatment with M100907 dose-dependently attenuated the acquisition of methamphetamine-induced CPP. Blocking 5-HT2A receptors with a low dose of the selective antagonist M100907 attenuated the rewarding effects of methamphetamine in adult female rats. These data provide further evidence that the 5-HT2A receptor subtype is involved in the behavioral effects of methamphetamine.
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Affiliation(s)
- John T Madden
- Department of Psychology, University of New Mexico, Albuquerque, NM, USA
| | - Nicole C Reyna
- Department of Psychology, University of New Mexico, Albuquerque, NM, USA
| | - Emerald V Goranson
- Department of Psychology, University of New Mexico, Albuquerque, NM, USA
| | - Tiffany A Gonzalez
- Department of Psychology, California State University, Long Beach, Long Beach, CA, USA
| | - Arturo R Zavala
- Department of Psychology, California State University, Long Beach, Long Beach, CA, USA
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Kou X, Xian J, Huang Z, Tao Y, Lin Y, Qin C, Wu H, Chang L, Luo C, Zhu D. Disrupting the Interaction of nNOS with CAPON Prevents the Reinstatement of Morphine Conditioned Place Preference. Cereb Cortex 2021; 32:569-582. [PMID: 34297798 DOI: 10.1093/cercor/bhab234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 11/12/2022] Open
Abstract
Drug abuse is a dramatic challenge for the whole society because of high relapse rate. Environmental cues are crucial for the preference memory of drug abuse. Extinction therapy has been developed to inhibit the motivational effect of drug cues to prevent the reinstatement of morphine abuse. However, extinction therapy alone only forms a new kind of unstable inhibitory memory. We found that morphine conditioned place preference (CPP) extinction training increased the association of nitric oxide synthase (nNOS) with its carboxy-terminal PDZ ligand (CAPON) in the dorsal hippocampus (dHPC) significantly and blocking the morphine-induced nNOS-CAPON association using Tat-CAPON-12C during and after extinction training reversed morphine-induced hippocampal neuroplasticity defect and prevented the reinstatement and spontaneous recovery of morphine CPP. Moreover, in the hippocampal selective ERK2 knock-out or nNOS knockout mice, the effect of Tat-CAPON-12C on the reinstatement of morphine CPP and hippocampal neuroplasticity disappeared, suggesting ERK2 is necessary for the effects of Tat-CAPON-12C. Together, our findings suggest that nNOS-CAPON interaction in the dHPC may affect the consolidation of morphine CPP extinction and dissociating nNOS-CAPON prevents the reinstatement and spontaneous recovery of morphine CPP, possibly through ERK2-mediated neuroplasticity and extinction memory consolidation, offering a new target to prevent the reinstatement of drug abuse.
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Affiliation(s)
- Xiaolin Kou
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.,Jiangsu Simovay Pharmaceutical Co., Ltd., Nanjing 210042, China
| | - Jiayun Xian
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Zhenquan Huang
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Yan Tao
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Yuhui Lin
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Cheng Qin
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Haiyin Wu
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Lei Chang
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Chunxia Luo
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Dongya Zhu
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.,Institution of Stem Cells and Neuroregeneration, Nanjing Medical University, Nanjing 211166, China.,Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou 510507, China
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Zhu C, Tao H, Rong S, Xiao L, Li X, Jiang S, Guo B, Wang L, Ding J, Gao C, Chang H, Sun T, Wang F. Glucagon-Like Peptide-1 Analog Exendin-4 Ameliorates Cocaine-Mediated Behavior by Inhibiting Toll-Like Receptor 4 Signaling in Mice. Front Pharmacol 2021; 12:694476. [PMID: 34349653 PMCID: PMC8327264 DOI: 10.3389/fphar.2021.694476] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
Exendin-4 (Ex4), a long-lasting glucagon-like peptide-1 analog, was reported to exert favourable actions on inhibiting cocaine-associated rewarding and reinforcing effects of drug in animal models of addiction. However, the therapeutic potential of different dose of GLP-1 receptor agonist Ex4 in different behavioral paradigms and the underlying pharmacological mechanisms of action are incompletely understood. Herein, we firstly investigated the effects of Ex4 on cocaine-induced condition place preference (CPP) as well as extinction and reinstatement in male C57BL/6J mice. Additionally, we sought to elucidate the underlying pharmacological mechanism of these actions of Ex4. The paradigm of cocaine-induced CPP was established using 20 mg/kg cocaine or saline alternately during conditioning, while the reinstatement paradigm was modeled using 10 mg/kg cocaine on the reinstatement day. Different dose of Ex4 was administrated intraperitoneally either during conditioning or during extinction state or only on the test day. To elucidate the molecular mechanism underlying the potential effects of Ex4 on maladaptive behaviors of cocaine, the TLR4-related inflammation within the hippocampus was observed by immunofluorescence staining, and the expression levels of toll-like receptor 4 (TLR4), tumor necrosis factor (TNF)-α, and interleukin (IL)-1β were detected by Western blotting. As a consequence, systemic administration of different dose of Ex4 was sufficient to inhibit the acquisition and expression of cocaine-induced CPP, facilitate the extinction of cocaine-associated reward and attenuate reinstatement of cocaine-induced behavior. Furthermore, Ex4 treatment diminished expression levels of TLR4, TNF-α, and IL-1β, which were up-regulated by cocaine exposure. Altogether, our results indicated that Ex4 effectively ameliorated cocaine-induced behaviors likely through neurobiological mechanisms partly attributable to the inhibition of TLR4, TNF-α and IL-1β in mice. Consequently, our findings improved our understanding of the efficacy of Ex4 for the amelioration of cocaine-induced behavior and suggested that Ex4 may be applied as a drug candidate for cocaine addiction.
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Affiliation(s)
- Changliang Zhu
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China.,Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Hong Tao
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shikuo Rong
- Department of General Surgery, Chengdu Second Hospital, Chendu, China
| | - Lifei Xiao
- Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Xinxiao Li
- Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Shucai Jiang
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Baorui Guo
- Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Lei Wang
- Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Jiangwei Ding
- Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Caibing Gao
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Haigang Chang
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Tao Sun
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China.,Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Feng Wang
- Ningxia Key Laboratory of Cerebro Cranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China.,Department of Neurosurgery, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
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64
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Changes in the electrical activity of prefrontal neurons following methamphetamine-induced conditioned place preference in the rat. PHYSIOLOGY AND PHARMACOLOGY 2021. [DOI: 10.52547/phypha.26.3.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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65
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Marathe PA, Satam SD, Raut SB, Shetty YC, Pooja SG, Raut AA, Kale PP, Rege NN. Effect of Withania somnifera (L.) Dunal aqueous root extract on reinstatement using conditioned place preference and brain GABA and dopamine levels in alcohol dependent animals. JOURNAL OF ETHNOPHARMACOLOGY 2021; 274:113304. [PMID: 32920131 DOI: 10.1016/j.jep.2020.113304] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 05/30/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Withania somnifera (L.) Dunal (WS), a known'Rasayana' (rejuvenating agent) as per Ayurveda is prescribed to promote health, to increase longevity and to hasten recovery in disease convalescent stages. WS has demonstrated protective effect on alcohol dependence and withdrawal anxiety in previous experimental studies. AIM OF THE STUDY To evaluate effect of WS on conditioned place behavioral paradigm (model of relapse) and on GABA and dopamine levels in critical brain areas in alcohol dependent animals. METHODOLOGY Following Animal Ethics Committee permission, the mice (n = 24) were divided into the following study groups for experiment 1: 1 -distilled water (vehicle control), 2 -WS and 3 -Naltrexone. They were conditioned on conditioned place preference (CPP) using alcohol (2 gm/kg)/saline (1 ml) administered intraperitoneally for 8 days. WS and Naltrexone were administered during the period of extinction (6-8 days). Effect of WS (650 mg/kg) on reinstating behaviour of mice (time spent in alcohol paired compartment) primed with alcohol injection was noted. In experiment 2, effect of WS (450 mg/kg/) on GABA and dopamine levels in the midbrain, striatum and cortex (ng/gm) were measured in alcohol dependent rats (n = 24) following the first phase of standardisation assay (n = 36). The rats were made alcohol dependent for 15 days (intermittent access model) and WS was administered concurrently. GABA and dopamine levels were measured on Day 16. RESULTS WS group showed decrease in time spent in alcohol paired compartment alike Naltrexone and it differed significantly compared to the distilled water control group (p < 0.05) Alcohol-dependent rats showed significant decrease in GABA and increase in dopamine levels vs distilled water in the midbrain, striatum and cortex. WS and Naltrexone administration showed rise in GABA and fall in dopamine in all the isolated brain parts in the respective groups (p < 0.05 vs alcohol treated group). CONCLUSION Withania somnifera protected animals from relapse and showed beneficial effects on the brain neurotransmitters involved in alcohol dependence. The study provides substantial evidence for its potential application in alcohol use disorder.
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Affiliation(s)
- P A Marathe
- Department of Pharmacology & Therapeutics, Seth Gordhandas Sundardas Medical College & King Edward Memorial Hospital, Parel, Mumbai, 400 012, India
| | - S D Satam
- Department of Pharmacology & Therapeutics, Seth Gordhandas Sundardas Medical College & King Edward Memorial Hospital, Parel, Mumbai, 400 012, India
| | - S B Raut
- School of Psychological Sciences, College of Health and Medicine, University of Tasmania, Launceston, 7250, Australia
| | - Y C Shetty
- Department of Pharmacology & Therapeutics, Seth Gordhandas Sundardas Medical College & King Edward Memorial Hospital, Parel, Mumbai, 400 012, India.
| | - S G Pooja
- Department of Pharmacology & Therapeutics, Seth Gordhandas Sundardas Medical College & King Edward Memorial Hospital, Parel, Mumbai, 400 012, India
| | - A A Raut
- Medical Research Centre of Kasturba Health Society, Vile Parle (west), Mumbai, India
| | - P P Kale
- SVKMs Dr Bhanuben Nanavati College of Pharmacy, Vile Parle, Mumbai, India
| | - N N Rege
- Department of Pharmacology & Therapeutics, Seth Gordhandas Sundardas Medical College & King Edward Memorial Hospital, Parel, Mumbai, 400 012, India
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66
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Aranäs C, Vestlund J, Witley S, Edvardsson CE, Kalafateli AL, Jerlhag E. Salmon Calcitonin Attenuates Some Behavioural Responses to Nicotine in Male Mice. Front Pharmacol 2021; 12:685631. [PMID: 34234676 PMCID: PMC8257032 DOI: 10.3389/fphar.2021.685631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/17/2021] [Indexed: 02/03/2023] Open
Abstract
The behavioural responses to nicotine involve appetite-regulatory hormones; however, the effects of the anorexigenic hormone amylin on reward-related behaviours induced by nicotine remain to be established. Previous studies have shown that the amylinergic pathway regulates behavioural responses to alcohol, amphetamine and cocaine. Here, we evaluated the effects of salmon calcitonin (sCT), an amylin and calcitonin receptor (CTR) agonist, on nicotine-induced locomotor stimulation and sensitisation as well as dopamine release in the nucleus accumbens (NAc) shell. Moreover, we investigated the effects of sCT on the acquisition and expression of nicotine-induced reward in the conditioned place preference (CPP) paradigm. Finally, we performed Western Blot experiments in an attempt to identify the levels of the amylin receptor components CTRa, CTRb, and RAMP1 in reward-related areas of mice responding differently to repeated injections of sCT and nicotine in the locomotor sensitisation test. We found that sCT blocked nicotine’s stimulatory and dopamine-releasing effects and prevented its ability to cause locomotor sensitisation. On the other hand, sCT did not alter nicotine-induced acquisition and expression of CPP. Lastly, sCT-nicotine treated mice from the locomotor sensitisation experiment displayed higher levels of total CTR, i.e. CTRa and CTRb together, in the reward-processing laterodorsal tegmental area (LDTg) of the brain compared to mice treated with vehicle-nicotine. Overall, the present data reveal that activation of CTR or/and amylin receptors attenuates certain nicotine-induced behaviours in male mice, further contributing to the understanding of appetite-regulatory peptides in reward regulation.
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Affiliation(s)
- Cajsa Aranäs
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Jesper Vestlund
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Sarah Witley
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Christian E Edvardsson
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Aimilia Lydia Kalafateli
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Elisabet Jerlhag
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
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67
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The role of circTmeff-1 in incubation of context-induced morphine craving. Pharmacol Res 2021; 170:105722. [PMID: 34116208 DOI: 10.1016/j.phrs.2021.105722] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/08/2021] [Accepted: 06/04/2021] [Indexed: 02/04/2023]
Abstract
A progressive increase in drug craving following drug exposure is an important trigger of relapse. CircularRNAs (CircRNAs), key regulators of gene expression, play an important role in neurological diseases. However, the role of circRNAs in drug craving is unclear. In the present study, we trained mice to morphine conditioned place preference (CPP) and collected the nucleus accumbens (NAc) sections on abstinence day 1 (AD1) and day 14 (AD14) for RNA-sequencing. CircTmeff-1, which was highly expressed in the NAc core, was associated with incubation of context-induced morphine craving. The gain- and loss- of function showed that circTmeff-1 was a positive regulator of incubation. Simultaneously, the expression of miR-541-5p and miR-6934-3p were down-regulated in the NAc core during the incubation period. The dual luciferase reporter, RNA pulldown, and fluorescence insitu hybridization assays confirmed that miR-541-5p and miR-6934-3p bind to circTmeff-1 selectively. Furthermore, bioinformatics and western blot analysis suggested that vesicle-associated membrane protein 1 (VAMP1) and neurofascin (NFASC), both overlapping targets of miR-541-5p and miR-6934-3p, were highly expressed during incubation. Lastly, AAV-induced down-regulation of circTmeff-1 decreased VAMP1 and NFASC expression and incubation of morphine craving. These findings suggested that circTmeff-1, a novel circRNA, promotes incubation of context-induced morphine craving by sponging miR-541/miR-6934 in the NAc core. Thus, circTmeff-1 represents a potential therapeutic target for context-induced opioid craving, following prolonged abstinence.
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68
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Uncovering the analgesic effects of a pH-dependent mu-opioid receptor agonist using a model of nonevoked ongoing pain. Pain 2021; 161:2798-2804. [PMID: 32639370 DOI: 10.1097/j.pain.0000000000001968] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Currently, opioids targeting mu-opioid receptors are the most potent drugs for acute and cancer pain. However, opioids produce adverse side effects such as constipation, respiratory depression, or addiction potential. We recently developed (±)-N-(3-fluoro-1-phenethylpiperidine-4-yl)-N-phenyl propionamide (NFEPP), a compound that does not evoke central or intestinal side effects due to its selective activation of mu-opioid receptors at low pH in peripheral injured tissues. Although we demonstrated that NFEPP effectively abolishes injury-induced pain, hyperalgesia, and allodynia in rodents, the efficacy of NFEPP in nonevoked ongoing pain remains to be established. Here, we examined reward, locomotor activity, and defecation in rats with complete Freund's adjuvant-induced paw inflammation to compare fentanyl's and NFEPP's potentials to induce side effects and to inhibit spontaneous pain. We demonstrate that low, but not higher, doses of NFEPP produce conditioned place preference but not constipation or motor disturbance, in contrast to fentanyl. Using a peripherally restricted antagonist, we provide evidence that NFEPP-induced place preference is mediated by peripheral opioid receptors. Our results indicate that a low dose of NFEPP produces reward by abolishing spontaneous inflammatory pain.
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Potential Benefits of N-Acetylcysteine in Preventing Pregabalin-Induced Seeking-Like Behavior. Healthcare (Basel) 2021; 9:healthcare9040376. [PMID: 33805329 PMCID: PMC8066267 DOI: 10.3390/healthcare9040376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 11/24/2022] Open
Abstract
Substance-use disorder is globally prevalent and responsible for numerous social and medical problems. Pregabalin (Lyrica), typically used to treat diabetic neuropathy, has recently emerged as a drug of abuse. Drug abuse is associated with several neuronal changes, including the downregulation of glutamate transporters such as glutamate transporter 1 and cystine/glutamate antiporter. We investigated the effects of N-acetylcysteine, a glutamate transporter 1 and xCT upregulator, on pregabalin addiction using a conditioned place preference paradigm. Pregabalin (60 mg/kg) was found to induce conditioned place preference when compared to a vehicle. A 100 mg/kg dose of N-acetylcysteine was found to block pregabalin-seeking behaviors. These results support previous findings showing that glutamate transporters play an important role in pregabalin-induced seeking behaviors. N-acetylcysteine may represent a beneficial agent in preventing the abuse potential of pregabalin.
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70
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Valera-Marín G, Young LJ, Camacho F, Paredes RG, Rodríguez VM, Díaz NF, Portillo W. Raised without a father: monoparental care effects over development, sexual behavior, sexual reward, and pair bonding in prairie voles. Behav Brain Res 2021; 408:113264. [PMID: 33775781 DOI: 10.1016/j.bbr.2021.113264] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/03/2021] [Accepted: 03/17/2021] [Indexed: 12/18/2022]
Abstract
Around 5 % of mammals are socially monogamous and both parents provide care to the pups (biparental, BP). Prairie voles are socially monogamous rodents extensively used to understand the neurobiological basis of pair bond formation and the consequences that the absence of one parent has in the offspring. Pair bonding, characterized by selective affiliation with a sexual partner, is facilitated in prairie voles by mating for 6 h or cohabitation without mating for 24 h. It was previously shown that prairie voles raised by their mother alone (monoparental, MP) show delayed pair bond formation upon reaching adulthood. In this study we evaluated the effects of BP and MP care provided on the offspring's development, ability to detect olfactory cues, preference for sexually relevant odors, display of sexual behavior, as well as the rewarding effects of mating. We also measured dopamine and serotonin concentration in the nucleus accumbens (ventral striatum) and dorsal striatum after cohabitation and mating (CM) to determine if differences in these neurotransmitters could underlie the delay in pair bond formation in MP voles. Our data showed that MP voles received less licking/grooming than BP voles, but no developmental differences between groups were found. No differences were found in the detection and discrimination of olfactory cues or preference for sexually relevant odors, as all groups innately preferred opposite sex odors. No differences were found in the display of sexual behavior. However, CM induced reinforcing properties only in BP males, followed by a preference for their sexual partner in BP but not MP males. BP males showed an increase in dopamine turnover (DOPAC/DA and HVA/DA) in the nucleus accumbens in comparison to MP voles. No differences in dopamine, serotonin or their metabolites were found in the dorsal striatum. Our results indicate that MP voles that received less licking behavior exhibit a delay in pair bond formation possibly because the sexual interaction is not rewarding enough.
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Affiliation(s)
- Guillermo Valera-Marín
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla 3001, Querétaro, 76230, Mexico
| | - Larry J Young
- Silvio O. Conte Center for Oxytocin and Social Cognition, Center for Translational Social Neuroscience, Department of Psychiatry and Behavioral Sciences, Yerkes National Primate Research Center, Emory University, 954 Gatewood Rd., Atlanta, GA, 30329, United States
| | - Francisco Camacho
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla 3001, Querétaro, 76230, Mexico
| | - Raúl G Paredes
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla 3001, Querétaro, 76230, Mexico; Escuela Nacional de Estudios Superiores, Unidad Juriquilla, UNAM, Mexico
| | - Verónica M Rodríguez
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla 3001, Querétaro, 76230, Mexico
| | - Néstor F Díaz
- Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Montes Urales 800, Col. Lomas Virreyes, Del. Miguel Hidalgo, Ciudad de México, 11000, Mexico.
| | - Wendy Portillo
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla 3001, Querétaro, 76230, Mexico.
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Ebrahimi Z, Kahvandi N, Komaki A, Karimi SA, Naderishahab M, Sarihi A. The role of mGlu4 receptors within the nucleus accumbens in acquisition and expression of morphine-induced conditioned place preference in male rats. BMC Neurosci 2021; 22:17. [PMID: 33743609 PMCID: PMC7981834 DOI: 10.1186/s12868-021-00627-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/12/2021] [Indexed: 11/26/2022] Open
Abstract
Background Several studies have shown that glutamate neurotransmission in the nucleus accumbens (NAc) is required for the development of morphine-induced conditional place preference (CPP). In addition, metabotropic glutamate receptors (mGluRs) in NAc play important roles in the reward pathways. However, the precise role of mGluR4 in different steps of the morphine-induced CPP is less well known. In the present study the effect of bilateral intra-accumbal infusion of VU0155041, as a specific mGluR4 agonist on the acquisition and expression of morphine induced CPP in male Wistar rats was investigated. The animals were bilaterally implanted with guide cannulae above the NAc. In the first step of the study, the VU0155041 was administered at doses of 10, 30 and 50 μg/0.5 μL saline per side into the NAc during the 3 days of morphine (5 mg/kg) conditioning (acquisition) phase of morphine-induced CPP. In the second step of the study, the rats bilaterally received VU0155041 at the dose of 50 μg/0.5 μL, 5 min before the post-conditioning test in order to check the effect of VU0155041 on the expression of morphine-induced CPP. Results The results showed that the intra-accumbal injection of VU0155041 inhibits the acquisition of morphine-induced CPP in a dose dependent manner, but had no effect on expression. Conclusions The data indicated that intra-NAc administration of VU0155041 dose dependently blocks the establishment of morphine-induced CPP and reduces the rewarding properties of morphine. These effects may be related to changes in glutamate activity in the NAC and/or learning dependent mechanism of glutamate neurotransmission in reward pathway(s).
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Affiliation(s)
- Zahra Ebrahimi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nazanin Kahvandi
- Department of Physiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.,Department of Neuroscience, School of Sciences and Advanced Technology in Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Seyed Asaad Karimi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.,Department of Neuroscience, School of Sciences and Advanced Technology in Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Marzieh Naderishahab
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abdolrahman Sarihi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran. .,Department of Neuroscience, School of Sciences and Advanced Technology in Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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Nazarian A, Negus SS, Martin TJ. Factors mediating pain-related risk for opioid use disorder. Neuropharmacology 2021; 186:108476. [PMID: 33524407 PMCID: PMC7954943 DOI: 10.1016/j.neuropharm.2021.108476] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/03/2020] [Accepted: 01/23/2021] [Indexed: 12/23/2022]
Abstract
Pain is a complex experience with far-reaching organismal influences ranging from biological factors to those that are psychological and social. Such influences can serve as pain-related risk factors that represent susceptibilities to opioid use disorder. This review evaluates various pain-related risk factors to form a consensus on those that facilitate opioid abuse. Epidemiological findings represent a high degree of co-occurrence between chronic pain and opioid use disorder that is, in part, driven by an increase in the availability of opioid analgesics and the diversion of their use in a non-medical context. Brain imaging studies in individuals with chronic pain that use/abuse opioids suggest abuse-related mechanisms that are rooted within mesocorticolimbic processing. Preclinical studies suggest that pain states have a limited impact on increasing the rewarding effects of opioids. Indeed, many findings indicate a reduction in the rewarding and reinforcing effects of opioids during pain states. An increase in opioid use may be facilitated by an increase in the availability of opioids and a decrease in access to non-opioid reinforcers that require mobility or social interaction. Moreover, chronic pain and substance abuse conditions are known to impair cognitive function, resulting in deficits in attention and decision making that may promote opioid abuse. A better understanding of pain-related risk factors can improve our knowledge in the development of OUD in persons with pain conditions and can help identify appropriate treatment strategies. This article is part of the special issue on 'Vulnerabilities to Substance Abuse.'.
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Affiliation(s)
- Arbi Nazarian
- Department of Pharmaceutical Sciences, Western University of Health Sciences, Pomona, CA 91766, USA.
| | - S Stevens Negus
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Thomas J Martin
- Department of Anesthesiology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
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Libarino-Santos M, Brandão NRN, Borges ÁLN, Anjos-Santos A, Cata-Preta EG, Barros-Santos T, Oliveira-Campos D, Brito ACL, Oliveira TS, Kisaki ND, Silva AAF, Cruz FC, Berro LF, Marinho EAV, Oliveira-Lima AJ. Aripiprazole and topiramate, alone or in combination, block the expression of ethanol-induced conditioned place preference in mice. Drug Alcohol Depend 2021; 220:108520. [PMID: 33485011 DOI: 10.1016/j.drugalcdep.2021.108520] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/19/2020] [Accepted: 12/21/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Ethanol is the most largely consumed drug in the world. Because of its complex mechanisms of action, studies suggest that the combination of drugs with distinct pharmacological effects may be a promising alternative for treating ethanol use disorder. In the present study, we aimed to investigate the effects of topiramate, alone and in combination with aripiprazole, on ethanol-induced conditioned place preference (CPP). METHODS Adult male mice were conditioned with ethanol (1.8 g/kg, i.p.) in the conditioned place preference (CPP) apparatus. Animals were then treated with vehicle, topiramate (2.5, 5 or 10 mg/kg, i.p.), aripiprazole (0.025, 0.05, 0.075 or 0.1 mg/kg, i.p.) or a combination of subthreshold doses of topiramate and aripiprazole (5 and 0.075 mg/kg, respectively) in the ethanol-paired compartment for 8 consecutive days. The expression of ethanol-induced CPP was then evaluated during a drug-free test performed 24 h after a re-exposure to ethanol in the ethanol-paired compartment. RESULTS Treatment with 10 mg/kg topiramate or 0.1 mg/kg aripiprazole blocked the expression of ethanol-induced CPP. Combined treatment with 5 mg/kg topiramate and 0.075 mg/kg aripiprazole, doses that alone were not effective, also blocked the expression of CPP to ethanol. CONCLUSIONS Topiramate and aripiprazole, alone or in combination, blocked the expression of ethanol-induced CPP. By showing that a combination of lower, subthreshold doses or topiramate and aripiprazole was effective in blocking the conditioned reinforcing properties of the ethanol-paired environment in mice, our current findings provide important insights into the therapeutic use of these drugs in ethanol use disorder.
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Affiliation(s)
- Matheus Libarino-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Nina R N Brandão
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Áurea L N Borges
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Alexia Anjos-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Elisângela G Cata-Preta
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Thaísa Barros-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Daniella Oliveira-Campos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Ana Carolina L Brito
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Thaynara S Oliveira
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Natali D Kisaki
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Aline A F Silva
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Fabio C Cruz
- Department of Pharmacology, São Paulo Federal University, Leal Prado Building, Botucatu 862 Street, 04024-002, Vila Clementino, São Paulo, SP, Brazil
| | - Laís F Berro
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil; Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N State St, Jackson, MS, 39216, USA.
| | - Eduardo A V Marinho
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Alexandre J Oliveira-Lima
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil.
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Kähler B, Romswinkel EV, Jakovcevski M, Moses A, Schachner M, Morellini F. Hyperfunction of the stress response system and novelty-induced hyperactivity correlate with enhanced cocaine-induced conditioned place preference in NCAM-deficient mice. Addict Biol 2021; 26:e12887. [PMID: 32124535 DOI: 10.1111/adb.12887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 01/30/2020] [Accepted: 02/12/2020] [Indexed: 02/05/2023]
Abstract
Several studies in humans and rodents suggest an association between impulsivity and activity of the stress response on the one hand and addiction vulnerability on the other. The neural cell adhesion molecule (NCAM) has been related to several neuropsychiatric disorders in humans. Constitutively NCAM-deficient (-/-) mice display enhanced novelty-induced behavior and hyperfunction of the hypothalamic-pituitary-adrenal axis. Here we hypothesize that NCAM deficiency causes an altered response to cocaine. Cocaine-induced behaviors of NCAM-/- mice and wild-type (+/+) littermates were analyzed in the conditioned place preference (CPP) test. c-fos mRNA levels were investigated by quantitative polymerase chain reaction (qPCR) to measure neural activation after exposure to the cocaine-associated context. NCAM-/- mice showed an elevated cocaine-induced sensitization, enhanced CPP, impaired extinction, and potentiated cocaine-induced hyperlocomotion and CPP after extinction. NCAM-/- showed no potentiated CPP as compared with NCAM+/+ littermates when a natural rewarding stimulus (ie, an unfamiliar female) was used, suggesting that the behavioral alterations of NCAM-/- mice observed in the CPP test are specific to the effects of cocaine. Activation of the prefrontal cortex and nucleus accumbens induced by the cocaine-associated context was enhanced in NCAM-/- compared with NCAM+/+ mice. Finally, cocaine-induced behavior correlated positively with novelty-induced behavior and plasma corticosterone levels in NCAM-/- mice and negatively with NCAM mRNA levels in the hippocampus and nucleus accumbens in wild-type mice. Our findings indicate that NCAM deficiency affects cocaine-induced CPP in mice and support the view that hyperfunction of the stress response system and reactivity to novelty predict the behavioral responses to cocaine.
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Affiliation(s)
- Birgit Kähler
- Institute for Biosynthesis of Neural Structures, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eva Viktoria Romswinkel
- Behavioral Biology, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mira Jakovcevski
- Institute for Biosynthesis of Neural Structures, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ashley Moses
- Behavioral Biology, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Melitta Schachner
- Institute for Biosynthesis of Neural Structures, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Center for Neuroscience, Shantou University Medical College, Shantou, Guangdong, 515041, China
- Keck Center for Collaborative Neuroscience and Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08554, USA
| | - Fabio Morellini
- Institute for Biosynthesis of Neural Structures, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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75
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Manduca A, Carbone E, Schiavi S, Cacchione C, Buzzelli V, Campolongo P, Trezza V. The neurochemistry of social reward during development: What have we learned from rodent models? J Neurochem 2021; 157:1408-1435. [PMID: 33569830 DOI: 10.1111/jnc.15321] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/02/2021] [Accepted: 02/07/2021] [Indexed: 12/14/2022]
Abstract
Social rewards are fundamental to survival and overall health. Several studies suggest that adequate social stimuli during early life are critical for developing appropriate socioemotional and cognitive skills, whereas adverse social experiences negatively affect the proper development of brain and behavior, by increasing the susceptibility to develop neuropsychiatric conditions. Therefore, a better understanding of the neural mechanisms underlying social interactions, and their rewarding components in particular, is an important challenge of current neuroscience research. In this context, preclinical research has a crucial role: Animal models allow to investigate the neurobiological aspects of social reward in order to shed light on possible neurochemical alterations causing aberrant social reward processing in neuropsychiatric diseases, and they allow to test the validity and safety of innovative therapeutic strategies. Here, we discuss preclinical research that has investigated the rewarding properties of two forms of social interaction that occur in different phases of the lifespan of mammals, that is, mother-infant interaction and social interactions with peers, by focusing on the main neurotransmitter systems mediating their rewarding components. Together, the research performed so far helped to elucidate the mechanisms of social reward and its psychobiological components throughout development, thus increasing our understanding of the neurobiological substrates sustaining social functioning in health conditions and social dysfunction in major psychiatric disorders.
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Affiliation(s)
- Antonia Manduca
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Rome, Italy.,Neuroendocrinology, Metabolism and Neuropharmacology Unit, IRCSS Fondazione Santa Lucia, Rome, Italy
| | - Emilia Carbone
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Rome, Italy
| | - Sara Schiavi
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Rome, Italy
| | - Claudia Cacchione
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Rome, Italy
| | - Valeria Buzzelli
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Rome, Italy.,Department of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy
| | - Patrizia Campolongo
- Department of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy.,Neurobiology of Behavior Laboratory, IRCSS Fondazione Santa Lucia, Rome, Italy
| | - Viviana Trezza
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Rome, Italy
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76
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Barzegari AA, Shahabi K. Effects of Isoniazid on Tolerance and Sensitization to the Rewarding Properties of Morphine: A Conditioned Place Preference Procedure Investigation in Mice. Basic Clin Neurosci 2021; 11:481-490. [PMID: 33613886 PMCID: PMC7878033 DOI: 10.32598/bcn.11.4.1940.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 07/25/2019] [Accepted: 12/02/2019] [Indexed: 11/20/2022] Open
Abstract
Introduction: The GABAergic system of the brain plays a key role in morphine tolerance and sensitization. As isoniazid is a modulator of the GABAergic system, the present study aims to understand whether isoniazid can influence the induction of tolerance and sensitization to the rewarding effects of morphine. Methods: The rewarding effects of morphine and isoniazid were assessed using a Conditioned Place Preference (CPP) procedure in female mice. Tolerance to the rewarding effects of morphine was induced with high-dose morphine (25 mg/kg, SC), twice a day, for four days. Also, the sensitization was induced with an effective dose of morphine (5 mg/kg, SC), once a day, for three days. During the induction of tolerance or sensitization, the different groups of mice received saline or isoniazid (25, 50, and 75 mg/kg, IP) one hour before each morphine injection. Results: Morphine (0.5–10 mg/kg, SC) produced a significant CPP, but isoniazid (25, 50, and 75 mg/kg, IP) did not induce place preference or place aversion in mice. Although an effective dose of morphine (5 mg/kg, SC) did not induce CPP in morphine tolerated mice, an ineffective dose (0.5 mg/kg, SC) could produce a significant CPP in morphine-sensitized animals. The administration of isoniazid before morphine (on the days of tolerance or sensitization induction) inhibited the development of tolerance or sensitization to the rewarding effect of morphine in the CPP paradigm. Conclusion: Isoniazid can be a useful drug for the prevention of tolerance and sensitization to the rewarding effects of morphine.
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Affiliation(s)
- Amir Abbas Barzegari
- Department of Biology, Faculty of Basic Science, University of Maragheh, Maragheh, Iran
| | - Kamran Shahabi
- Department of Biology, Faculty of Basic Science, University of Maragheh, Maragheh, Iran
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77
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Abstract
Sickness induced by gastrointestinal malaise or by microbial pathogens is more than a private experience. Sick individuals share their illness within their social environment by communicating their sickness to others. In turn, recipients of the communication respond with appropriate behavioral adaptations. Avoidance of sick individuals and the events associated with their sickness is advantageous for members of the group. However, these responses can conflict with the need for comfort or social support expressed by sick individuals. There is evidence that the relationship between the sick individual and its social environment involves neurobiological mechanisms that are similar to those that mediate social bonding. Despite their commonality the feelings of love and fear/disgust that are associated with the sociality of sickness have thus far been neglected by mainstream affective neuroscience.
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Affiliation(s)
- Robert Dantzer
- Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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78
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Rohan ML, Lowen SB, Rock A, Andersen SL. Novelty preferences and cocaine-associated cues influence regions associated with the salience network in juvenile female rats. Pharmacol Biochem Behav 2021; 203:173117. [PMID: 33561479 DOI: 10.1016/j.pbb.2021.173117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Preferences for novel environments (novelty-seeking) is a risk factor for addiction, with little known about its underlying circuitry. Exposure to drug cues facilitates addiction maintenance, leading us to hypothesize that exposure to a novel environment activates a shared neural circuitry. Stimulation of the D1 receptor in the prelimbic cortex increases responsivity to drug-associated environments. Here, we use D1 receptor overexpression in the prelimbic cortex to probe brain responses to novelty-preferences (in a free-choice paradigm) and cocaine-associated odors following place conditioning. These same cocaine-conditioned odors were used to study neural circuitry with Blood Oxygen Level Dependent (BOLD) activity. D1 overexpressing females had deactivated BOLD signals related to novelty-preferences within the insula cortex and amygdala and activation in the frontal cortex and dopamine cell bodies. BOLD responses to cocaine cues were also sensitive to D1. Control females demonstrated a place preference for cocaine environments with no significant BOLD response, while D1 overexpressing females demonstrated a place aversion and weak BOLD responses to cocaine-conditioned odor cues within the insula cortex. For comparison, we provide data from an earlier study with juvenile males overexpressing D1 that show a strong preference for cocaine and elevated BOLD responses. The results support the use of a pharmacological manipulation (e.g., D1 overexpression) to probe the neural circuitry downstream from the prelimbic cortex.
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Affiliation(s)
- Michael L Rohan
- McLean Hospital, Department of Psychiatry, Harvard Medical School, 115 Mill Street, Belmont, MA 02478, United States of America
| | - Steven B Lowen
- McLean Hospital, Department of Psychiatry, Harvard Medical School, 115 Mill Street, Belmont, MA 02478, United States of America
| | - Anna Rock
- McLean Hospital, Department of Psychiatry, Harvard Medical School, 115 Mill Street, Belmont, MA 02478, United States of America
| | - Susan L Andersen
- McLean Hospital, Department of Psychiatry, Harvard Medical School, 115 Mill Street, Belmont, MA 02478, United States of America.
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79
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Johnson MA, Contoreggi NH, Kogan JF, Bryson M, Rubin BR, Gray JD, Kreek MJ, McEwen BS, Milner TA. Chronic stress differentially alters mRNA expression of opioid peptides and receptors in the dorsal hippocampus of female and male rats. J Comp Neurol 2021; 529:2636-2657. [PMID: 33483980 DOI: 10.1002/cne.25115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 02/06/2023]
Abstract
Chronic immobilization stress (CIS) results in sex-dependent changes in opioid peptide levels and receptor subcellular distributions within the rat dorsal hippocampus, which are paralleled with an inability for males to acquire conditioned place preference (CPP) to oxycodone. Here, RNAScope in situ hybridization was used to determine the expression of hippocampal opioid peptides and receptors in unstressed (US) and CIS estrus female and male adult (∼2.5 months old ) Sprague Dawley rats. In all groups, dentate granule cells expressed PENK and PDYN; additionally, numerous interneurons expressed PENK. OPRD1 and OPRM1 were primarily expressed in interneurons, and to a lesser extent, in pyramidal and granule cells. OPRK1-was expressed in sparsely distributed interneurons. There were few baseline sex differences: US females compared to US males had more PENK-expressing and fewer OPRD1-expressing granule cells and more OPRM1-expressing CA3b interneurons. Several expression differences emerged after CIS. Both CIS females and males compared to their US counterparts had elevated: (1) PENK-expressing dentate granule cells and interneurons in CA1 and CA2/3a; (2) OPRD1 probe number and cell expression in CA1, CA2/3a and CA3b and the dentate gyrus; and (3) OPRK1-expressing interneurons in the dentate hilus. Also, CIS males compared to US males had elevated: (1) PDYN expression in granule cells; (2) OPRD1 probe and interneuron expression in CA2/3a; (3) OPRM1 in granule cells; and (4) OPRK1 interneuron expression in CA2/3a. The sex-specific changes in hippocampal opioid gene expression may impact network properties and synaptic plasticity processes that may contribute to the attenuation of oxycodone CPP in CIS males.
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Affiliation(s)
- Megan A Johnson
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Natalina H Contoreggi
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Joshua F Kogan
- Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, New York, USA
| | - Matthew Bryson
- Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, New York, USA
| | - Batsheva R Rubin
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Jason D Gray
- Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, New York, USA
| | - Mary Jeanne Kreek
- The Laboratory of the Biology of Addictive Diseases, The Rockefeller University, New York, New York, USA
| | - Bruce S McEwen
- Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, New York, USA
| | - Teresa A Milner
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, New York, USA.,Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, New York, USA
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80
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Bates MLS, Trujillo KA. Use and abuse of dissociative and psychedelic drugs in adolescence. Pharmacol Biochem Behav 2021; 203:173129. [PMID: 33515586 DOI: 10.1016/j.pbb.2021.173129] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/26/2022]
Abstract
Adolescence is a period of profound developmental changes, which run the gamut from behavioral and neural to physiological and hormonal. It is also a time at which there is an increased propensity to engage in risk-taking and impulsive behaviors like drug use. This review examines the human and preclinical literature on adolescent drug use and its consequences, with a focus on dissociatives (PCP, ketamine, DXM), classic psychedelics (LSD, psilocybin), and MDMA. It is the case for all the substances reviewed here that very little is known about their effects in adolescent populations. An emerging aspect of the literature is that dissociatives and MDMA produce mixed reinforcing and aversive effects and that the balance between reinforcement and aversion may differ between adolescents and adults, with consequences for drug use and addiction. However, many studies have failed to directly compare adults and adolescents, which precludes definitive conclusions about these consequences. Other important areas that are largely unexplored are sex differences during adolescence and the long-term consequences of adolescent use of these substances. We provide suggestions for future work to address the gaps we identified in the literature. Given the widespread use of these drugs among adolescent users, and the potential for therapeutic use, this work will be crucial to understanding abuse potential and consequences of use in this developmental stage.
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Affiliation(s)
- M L Shawn Bates
- Department of Psychology, California State University Chico, 400 W. First St, Chico, CA 95929, USA.
| | - Keith A Trujillo
- Department of Psychology and Office for Training, Research and Education in the Sciences (OTRES), California State University San Marcos, 333 S. Twin Oaks Valley Rd, San Marcos, CA 92096, USA..
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81
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Minbashi Moeini M, Sadr SS, Riahi E. Deep Brain Stimulation of the Lateral Hypothalamus Facilitates Extinction and Prevents Reinstatement of Morphine Place Preference in Rats. Neuromodulation 2021; 24:240-247. [PMID: 33496024 DOI: 10.1111/ner.13320] [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: 07/08/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVES We have previously shown that high-frequency (HF) deep brain stimulation (DBS) of the lateral hypothalamus (LH) during the acquisition phase of morphine-induced conditioned place preference (CPP) abolished the development of morphine reward. In the present study, we investigated the effect of DBS in the LH during the extinction phase of morphine CPP. MATERIALS AND METHODS Rats were implanted with electrodes in the LH and went through conditioning trials for morphine CPP (40 min each, for three days), followed by extinction trials (20 min, for nine days). DBS-like stimulation (square pulses at 13 or 130 Hz, 200 μA, 100 μsec) was applied during the extinction trials. RESULTS Rats that received HF-DBS (130 Hz) accomplished extinction of morphine place preference by day 5 of the phase, whereas those in sham-stimulation or low-frequency-DBS (LF-DBS, 13 Hz) groups reached the criterion for extinction at day 8. One day later, rats received a priming injection of morphine (2 mg/kg) to reinstate the extinguished preference. While rats in the sham-DBS and LF-DBS relapsed into the state of preferring morphine-associated context, those in the HF-DBS group did not show such preference. Rats were then proceeded into an additional phase of extinction training (20 min, once daily, three to five days) with DBS, followed by restraint stress-induced reinstatement test. Again, sham-DBS and LF-DBS had no effect on relapse to the morphine place preferring state, but HF-DBS completely prevented the relapse. CONCLUSION HF-DBS facilitated extinction of morphine place preference and disrupted drug priming- and stress-induced renewal of morphine place preference.
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Affiliation(s)
- Moein Minbashi Moeini
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Shahabeddin Sadr
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Esmail Riahi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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82
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Effects of the monoamine stabilizer, (-)-OSU6162, on cocaine-induced locomotion and conditioned place preference in mice. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:1143-1152. [PMID: 33471153 DOI: 10.1007/s00210-021-02053-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/11/2021] [Indexed: 10/22/2022]
Abstract
Cocaine addiction is a severe mental disorder for which few treatment options are available. The underlying mechanisms include facilitation of monoamine-neurotransmission, particularly dopamine. Here, we tested the hypothesis that the monoamine stabilizers, (-)-OSU6162 ((3S)-3-(3-methylsulfonylphenyl)-1-propylpiperidine) and aripiprazole (7-[4-[4-(2,3-dichlorophenyl)piperazin-1-yl]butoxy]-3,4-dihydro-1H-quinolin-2-one), prevent cocaine-induced behaviors. Male Swiss mice received injections of (-)-OSU6162 or aripiprazole and cocaine and were tested for cocaine-induced hyperlocomotion, locomotor sensitization, and acquisition and expression of conditioned place preference (CPP). The increase in the distance traveled induced by cocaine (20 mg/kg) was prevented by pretreatment with aripiprazole (1 and 10 mg/kg), whereas (-)-OSU6162 (3 mg/kg) exerted a minor effect. Aripiprazole, however, also impaired spontaneous locomotion. Neither (-)-OSU6162 nor aripiprazole interfered with the locomotor sensitization and expression of CPP induced by cocaine (15 mg/kg). (-)-OSU6162 (3 mg/kg), but not aripiprazole, prevented the acquisition of CPP induced by cocaine (15 mg/kg). (-)-OSU6162 exerts a minor effect in reducing cocaine-induced stimulatory activity and context-related memories, which are responsible for triggering drug seeking. Further studies are required to establish whether (-)-OSU6162 could be a candidate drug for the treatment of cocaine addiction.
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83
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Xu C, Li R, Wu J. Effects of Yuanhu- Zhitong tablets on alcohol-induced conditioned place preference in mice. Biomed Pharmacother 2021; 133:110962. [PMID: 33166765 DOI: 10.1016/j.biopha.2020.110962] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 10/21/2020] [Accepted: 11/01/2020] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES This study aimed at determining the synergistic effects of Yuanhu Zhitong tablets (YHZTP) on alcohol-induced conditioned place preference (CPP) in mice, in addition, the intervention mechanism was preliminarily explored based on traditional Chinese Medicine (TCM) network pharmacology on alcohol addiction. METHODS Alcohol-induced CPP mice were used to evaluate the effects of either YHZTP or levo-tetrahydropalmatine (l-THP) plus imperatorin (IMP) administration on animal behavior. The network pharmacological strategy was used to establish the "compound-target" and "disease-drug-target" network. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed on the shared targets between the compound and the disease. Twelve algorithms on CytoHubba were used to find the hub genes that were verified by qPCR. RESULTS Systemic administration (2 g/kg, i.p.) of ethanol (EtOH) to mice was used to induce CPP. YHZTP On its own did not induce CPP or conditioned place aversion (CPA) at the doses of 0.3 g/kg or 0.6 g/kg (i.g.), but attenuated the acquisition and expression of EtOH-induce CPP in mice. In addition, YHZTP (0.3 or 0.6 g/kg) did not exhibit any effect on the motor activity of mice. Acquisition of alcohol-induced CPP was blocked by a combination of l-THP (5 mg/kg, i.g.) + IMP (2.5 mg/kg, i.g.) or l-THP (10 mg/kg, i.g.) + IMP (5 mg/kg, i.g.). However, the combination of l-THP (2.5 mg/kg, i.g.) + IMP (1.25 mg/kg, i.g.) or mono-administration of l-THP and IMP did not exhibit any effect on alcohol-induced CPP. YHZTP was also shown to reverse the up-regulation of Gabra1, Ptgs2, Mapk1, Mapk8, Mapk14, Nr3c, Prkca and Sirt1 genes and the down-regulation of Hhtr2a and Drd2 genes in the prefrontal cortex of EtOH induced CPP mice. These genes were associated with neuroactive ligand-receptor interactions, activation of the sphingolipid, calcium, cAMP, ErbB, NF-kappa B and MAPK signaling pathways. CONCLUSION YHZTP inhibits EtOH-induced CPP behavior in mice while a combination of l-THP and IMP exerts a synergistic effect on the reduction of EtOH-induced CPP. Possible pharmacological mechanisms include inhibition of the expression of inflammatory factors and regulation of neurotransmitter receptor levels. Therefore, YHZTP is a novel candidate for the treatment of alcohol addiction.
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Affiliation(s)
- Changqiong Xu
- Brain Function and Disease Laboratory, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, PR China
| | - Ran Li
- Brain Function and Disease Laboratory, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, PR China.
| | - Jie Wu
- Brain Function and Disease Laboratory, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, PR China.
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Chu J, Deyama S, Li X, Motono M, Otoda A, Saito A, Esaki H, Nishitani N, Kaneda K. Role of 5-HT 1A receptor-mediated serotonergic transmission in the medial prefrontal cortex in acute restraint stress-induced augmentation of rewarding memory of cocaine in mice. Neurosci Lett 2020; 743:135555. [PMID: 33352288 DOI: 10.1016/j.neulet.2020.135555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/28/2020] [Accepted: 12/02/2020] [Indexed: 11/27/2022]
Abstract
Stress enhances cocaine craving. We recently reported that acute restraint stress increases cocaine conditioned place preference (CPP) in mice; however, the underlying mechanisms remain unclear. This study aimed to examine the role of serotonergic transmission in the medial prefrontal cortex (mPFC) in cocaine CPP enhancement by acute restraint stress, which increases extracellular serotonin (5-HT) levels in the mPFC. Intra-mPFC infusion of the selective serotonin reuptake inhibitor (S)-citalopram prior to the test session significantly increased the cocaine CPP score under non-stressed conditions. This is indicative of the substantial role of increased mPFC 5-HT levels in cocaine CPP enhancement. Moreover, intra-mPFC and systemic administration of the 5-HT1A receptor antagonist WAY100635 immediately before restraint stress exposure significantly attenuated stress-induced cocaine CPP enhancement. Our findings suggest that enhanced serotonergic transmission via 5-HT1A receptors in the mPFC is involved in acute stress-induced augmentation of rewarding memory of cocaine; moreover, the 5-HT1A receptor could be a therapeutic target for stress-induced cocaine craving.
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Affiliation(s)
- Jinling Chu
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Satoshi Deyama
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Xueting Li
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Mei Motono
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Atsuki Otoda
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Atsushi Saito
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Hirohito Esaki
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Naoya Nishitani
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Katsuyuki Kaneda
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan.
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85
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McKendrick G, Sharma S, Sun D, Randall PA, Graziane NM. Acute and chronic bupropion treatment does not prevent morphine-induced conditioned place preference in mice. Eur J Pharmacol 2020; 889:173638. [PMID: 33039460 DOI: 10.1016/j.ejphar.2020.173638] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/28/2020] [Accepted: 10/07/2020] [Indexed: 12/14/2022]
Abstract
A substantial barrier to the treatment of Opioid Use Disorder (OUD) is the elevated relapse rates in affected patients, and a significant contributor to these events of relapse is exposure to cues and contexts that are intensely associated with prior drug abuse. The neurotransmitter dopamine plays a key role in reward-related behaviors, and previous studies have illustrated that dopamine hypofunction in periods of abstinence serves to prompt drug craving and seeking. We hypothesized that restoration of dopaminergic signaling could attenuate drug-seeking behaviors. Therefore, we investigated whether use of an FDA-approved drug, bupropion, an inhibitor of the dopamine transporter (DAT), or a dopamine uptake inhibitor with high affinity for DAT, JHW 007, was able to decrease preference for a drug-paired context. In these experiments, mice underwent 5 days of non-contingent morphine (10 mg/kg) exposure in a conditioned place preference (CPP) paradigm. We found that systemic injection of bupropion (20 mg/kg, i. p.) or intracranial injection of JHW 007 into the nucleus accumbens shell did not prevent the expression of morphine CPP. We then investigated whether chronic bupropion treatment (via implanted osmotic pumps) would influence morphine CPP. We observed that chronic bupropion treatment for 21 days following morphine conditioning did not attenuate the prolonged preference for morphine-paired contexts. Overall, with our dose and paradigm, neither acute nor chronic bupropion diminishes morphine CPP. Continued studies should address FDA-approved medications and their potential for recovery in OUD patients.
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Affiliation(s)
- Greer McKendrick
- Neuroscience Graduate Program, Penn State College of Medicine, Hershey, PA 17033, USA; Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Sonakshi Sharma
- Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Dongxiao Sun
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Patrick A Randall
- Departments of Anesthesiology and Perioperative Medicine and Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Nicholas M Graziane
- Departments of Anesthesiology and Perioperative Medicine and Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA.
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86
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Sex- and age-dependent differences in nicotine susceptibility evoked by developmental exposure to tobacco smoke and/or ethanol in mice. J Dev Orig Health Dis 2020; 12:940-951. [PMID: 33292889 DOI: 10.1017/s2040174420001191] [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: 11/05/2022]
Abstract
Either tobacco smoking or alcohol consumption during pregnancy sex-selectively increases susceptibility to drugs of abuse later in life. Considering that pregnant smoking women are frequently intermittent consumers of alcoholic beverages, here, we investigated whether a short-term ethanol exposure restricted to the brain growth spurt period when combined with chronic developmental exposure to tobacco smoke aggravates susceptibility to nicotine in adolescent and adult mice. Swiss male and female mice were exposed to tobacco smoke (SMK; research cigarettes 3R4F, whole-body exposure, 8 h/daily) or ambient air during the gestational period and until the tenth postnatal day (PN). Ethanol (ETOH, 2 g/Kg, 25%, i.p.) or saline was injected in the pups every other day from PN2 to PN10. There were no significant differences in cotinine (nicotine metabolite) and ethanol serum levels among SMK, ETOH and SMK + ETOH groups. During adolescence (PN30) and adulthood (PN90), nicotine (NIC, 0.5 mg/Kg) susceptibility was evaluated in the conditioned place preference and open field tests. NIC impact was more evident in females: SMK, ETOH and SMK + ETOH adolescent females were equally more susceptible to nicotine-induced place preference than control animals. At adulthood, SMK and SMK + ETOH adult females exhibited a nicotine-evoked hyperlocomotor profile in the open field, with a stronger effect in the SMK + ETOH group. Our results indicate that ethanol exposure during the brain growth spurt, when combined to developmental exposure to tobacco smoke, increases nicotine susceptibility with stronger effects in adult females. This result represents a worsened outcome from the early developmental dual exposure and may predispose nicotine use/abuse later in life.
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87
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Risca HI, Zuarth-Gonzalez JD, Baker LE. Conditioned place preference following concurrent treatment with 3, 4-methylenedioxypyrovalerone (MDPV) and methamphetamine in male and female Sprague-Dawley rats. Pharmacol Biochem Behav 2020; 198:173032. [PMID: 32888971 PMCID: PMC8667570 DOI: 10.1016/j.pbb.2020.173032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/31/2020] [Accepted: 08/31/2020] [Indexed: 01/31/2023]
Abstract
Synthetic cathinones gained initial popularity on the illicit drug market as a result of attempts to evade legal restrictions on other commonly abused psychostimulants. A body of published research has determined that the psychopharmacology of the synthetic cathinone 3, 4-methylenedioxypyrovalerone (MDPV) is comparable to cocaine and methamphetamine (METH). Few preclinical studies have systematically investigated concurrent use of synthetic cathinones with other psychostimulant drugs. The present study utilized conditioned place preference (CPP), a rodent model of conditioned drug reward, to evaluate the effects of concurrent treatment with MDPV and METH. Male (N = 72) and female (N = 105) Sprague-Dawley rats underwent a two-compartment biased CPP procedure, with one trial per day for eight consecutive days. Subjects were randomly assigned to the following treatment groups: saline, METH (1 mg/kg), MDPV (1, 3.2, 5.6 mg/kg) or a mixture consisting of METH (1 mg/kg) and MDPV (1, 3.2, 5.6 mg/kg). All treatments increased locomotor activity during drug conditioning trials, and most treatments produced higher activity increases in females compared to males. Although the level of CPP established by MDPV and MDPV + METH mixtures varied between males and females, sex differences were not statistically significant. Although none of the MDPV+METH mixtures produced stronger CPP than either substance alone, some mixtures of MDPV and METH produced higher increases in locomotor activity compared to either drug alone. Further studies with higher doses may be warranted to determine if concurrent use of MDPV and METH pose an enhanced risk for abuse.
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Affiliation(s)
- Harmony I Risca
- Department of Psychology, Western Michigan University, Kalamazoo, MI 49008, USA
| | | | - Lisa E Baker
- Department of Psychology, Western Michigan University, Kalamazoo, MI 49008, USA.
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88
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Ede T, von Keyserlingk MAG, Weary DM. Conditioned place aversion of caustic paste and hot-iron disbudding in dairy calves. J Dairy Sci 2020; 103:11653-11658. [PMID: 33069402 DOI: 10.3168/jds.2020-18299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 08/04/2020] [Indexed: 11/19/2022]
Abstract
Cauterization by hot iron and application of caustic paste are 2 common methods of disbudding calves. In this study, we compared the affective experience of these 2 procedures on young dairy calves using conditioned place aversion. Male dairy calves (n = 14; 7 ± 2 d old) were disbudded by both thermal and chemical methods (1 horn bud at a time, 48 h apart). Calves received treatments in pens made visually distinct with either red squares or blue triangles on the walls. Calves were restricted to these treatment pens for 6 h following disbudding. For all treatments, calves received a sedative (xylazine, 0.2 mg/kg), local anesthetic (lidocaine, 5 mL), and analgesic (meloxicam, 0.5 mg/kg). Calves were then tested for conditioned place aversion at 48, 72, and 96 h after their last treatment. During tests, calves were placed in a neutral pen connected to both treatment pens where they had previously been disbudded. Time spent in each treatment pen was recorded until calves chose to lie down for 1 min (latency to lie down: 31.0 ± 8.6 min). During the first test (48 h after last disbudding), calves spent more time in the pen associated with hot-iron disbudding compared with what would be expected by chance (intercept: 73.5%, 95% CI: 56.5, 90.5) and fewer calves lay down in the caustic paste pen than in the hot-iron pen (3 vs. 10 lying events). No evidence of preference for the hot-iron pen was found in the following test sessions (72 and 96 h since last disbudding). These results suggest that calves initially remember caustic paste disbudding as a more negative experience than hot-iron disbudding, even with the use of sedation, local anesthesia, and analgesia.
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Affiliation(s)
- Thomas Ede
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - Marina A G von Keyserlingk
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - Daniel M Weary
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4.
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89
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Islam A, Rahman MA, Brenner MB, Moore A, Kellmyer A, Buechler HM, DiGiorgio F, Verchio VR, McCracken L, Sumi M, Hartley R, Lizza JR, Moura-Letts G, Fischer BD, Keck TM. Abuse Liability, Anti-Nociceptive, and Discriminative Stimulus Properties of IBNtxA. ACS Pharmacol Transl Sci 2020; 3:907-920. [DOI: 10.1021/acsptsci.0c00066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Bradford D. Fischer
- Cooper Medical School of Rowan University, 401 Broadway, Camden, New Jersey 08103, United States
| | - Thomas M. Keck
- Cooper Medical School of Rowan University, 401 Broadway, Camden, New Jersey 08103, United States
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90
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McKendrick G, Graziane NM. Drug-Induced Conditioned Place Preference and Its Practical Use in Substance Use Disorder Research. Front Behav Neurosci 2020; 14:582147. [PMID: 33132862 PMCID: PMC7550834 DOI: 10.3389/fnbeh.2020.582147] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/02/2020] [Indexed: 12/25/2022] Open
Abstract
The conditioned place preference (CPP) paradigm is a well-established model utilized to study the role of context associations in reward-related behaviors, including both natural rewards and drugs of abuse. In this review article, we discuss the basic history, various uses, and considerations that are tied to this technique. There are many potential takeaway implications of this model, including negative affective states, conditioned drug effects, memory, and motivation, which are all considered here. We also discuss the neurobiology of CPP including relevant brain regions, molecular signaling cascades, and neuromodulatory systems. We further examine some of our prior findings and how they integrate CPP with self-administration paradigms. Overall, by describing the fundamentals of CPP, findings from the past few decades, and implications of using CPP as a research paradigm, we have endeavored to support the case that the CPP method is specifically advantageous for studying the role of a form of Pavlovian learning that associates drug use with the surrounding environment.
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Affiliation(s)
- Greer McKendrick
- Neuroscience Graduate Program, Penn State College of Medicine, Hershey, PA, United States.,Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA, United States
| | - Nicholas M Graziane
- Departments of Anesthesiology and Perioperative Medicine and Pharmacology, Penn State College of Medicine, Hershey, PA, United States
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91
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Nazari-Serenjeh F, Zarrabian S, Azizbeigi R, Haghparast A. Effects of dopamine D1- and D2-like receptors in the CA1 region of the hippocampus on expression and extinction of morphine-induced conditioned place preference in rats. Behav Brain Res 2020; 397:112924. [PMID: 32976861 DOI: 10.1016/j.bbr.2020.112924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/22/2020] [Accepted: 09/17/2020] [Indexed: 12/31/2022]
Abstract
Considering the extent of drug use and its relapse rate worldwide, in the present study, we explored the role of intra-CA1 administration of D1-like and D2-like receptor antagonists on the expression and extinction of morphine-induced CPP. To induce morphine CPP, adult male Wistar rats received a daily subcutaneous injection of morphine (5 mg/kg) during a 3-day conditioning phase. Different doses of SCH23390 (0.25, 1 or 4 μg/0.5 μl saline), as a selective D1-like receptor antagonist, and sulpiride (0.25, 1, or 4 μg/0.5 μl DMSO), as a selective D2-like receptor antagonist, were bilaterally microinjected into the CA1 region in the expression and extinction phases 1 h before CPP evaluation. Conditioning scores and locomotor activities were recorded during the tests. Results indicated that the injection of the antagonists into the CA1 region dose-dependently attenuated the expression of the morphine-induced CPP and sulpiride revealed prominent behavioral results compared to SCH23390 in the expression phases. Furthermore, microinjections of SCH23390 and sulpiride shortened the extinction phase of the morphine-induced CPP without changing the locomotor activity. The results indicated the involvement of D1- and D2-like receptors within the CA1 region in the expression and extinction of rewarding properties of morphine.
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Affiliation(s)
| | - Shahram Zarrabian
- Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Ronak Azizbeigi
- Department of Physiology, Faculty of Veterinary Medicine, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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92
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Schmill MP, Cadney MD, Thompson Z, Hiramatsu L, Albuquerque RL, McNamara MP, Castro AA, Kay JC, Buenaventura DG, Ramirez JL, Rhodes JS, Garland T. Conditioned place preference for cocaine and methylphenidate in female mice from lines selectively bred for high voluntary wheel-running behavior. GENES BRAIN AND BEHAVIOR 2020; 20:e12700. [PMID: 32909333 DOI: 10.1111/gbb.12700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/06/2020] [Accepted: 09/07/2020] [Indexed: 12/27/2022]
Abstract
Behavioral addictions can come in many forms, including overeating, gambling and overexercising. All addictions share a common mechanism involving activation of the natural reward circuit and reinforcement learning, but the extent to which motivation for natural and drug rewards share similar neurogenetic mechanisms remains unknown. A unique mouse genetic model in which four replicate lines of female mice were selectively bred (>76 generations) for high voluntary wheel running (High Runner or HR lines) alongside four non-selected control (C) lines were used to test the hypothesis that high motivation for exercise is associated with greater reward for cocaine (20 mg/kg) and methylphenidate (10 mg/kg) using the conditioned place preference (CPP) test. HR mice run ~three times as many revolutions/day as C mice, but the extent to which they have increased motivation for other rewards is unknown. Both HR and C mice displayed significant CPP for cocaine and methylphenidate, but with no statistical difference between linetypes for either drug. Taken together, results suggest that selective breeding for increased voluntary running has modified the reward circuit in the brain in a way that increases motivation for running without affecting cocaine or methylphenidate reward.
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Affiliation(s)
- Margaret P Schmill
- Neuroscience Graduate Program, University of California, Riverside, California, USA
| | - Marcell D Cadney
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Zoe Thompson
- Neuroscience Graduate Program, University of California, Riverside, California, USA
| | - Layla Hiramatsu
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Ralph L Albuquerque
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Monica P McNamara
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Alberto A Castro
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Jarren C Kay
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Darrius G Buenaventura
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Jocelyn L Ramirez
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Justin S Rhodes
- Beckman Institute for Advanced Science and Technology, Urbana, Illinois, USA.,Center for Nutrition, Learning and Memory, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Theodore Garland
- Neuroscience Graduate Program, University of California, Riverside, California, USA.,Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
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93
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Lopresti NM, Esguerra M, Mermelstein PG. Sex Differences in Animal Models of Opioid Reward. CURRENT SEXUAL HEALTH REPORTS 2020; 12:186-194. [PMID: 33574737 PMCID: PMC7872138 DOI: 10.1007/s11930-020-00266-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW This review aims to discuss sex differences observed in preclinical rodent models of opioid reward. RECENT FINDINGS Utilizing a variety of methodological approaches and drug regimens, no clear consensus has emerged regarding the effects of opiates between males and females. This is quite dissimilar to work examining psychostimulants, where female animals reliably exhibit stronger behavioral responses. SUMMARY With opioid research quickly expanding to determine the neural underpinnings of opioid addiction, further research is essential to determine the conditions wherein sex differences may occur and how they may relate to the human condition.
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Affiliation(s)
| | - Manuel Esguerra
- University of Minnesota, Twin Cities, Department of Neuroscience
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94
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Speltz R, Lunzer MM, Shueb SS, Akgün E, Reed R, Kalyuzhny A, Portoghese PS, Simone DA. The bivalent ligand, MMG22, reduces neuropathic pain after nerve injury without the side effects of traditional opioids. Pain 2020; 161:2041-2057. [PMID: 32345918 PMCID: PMC7606301 DOI: 10.1097/j.pain.0000000000001902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/21/2020] [Indexed: 11/26/2022]
Abstract
ABSTRACT Functional interactions between the mu opioid receptor (MOR) and the metabotropic glutamate receptor 5 (mGluR5) in pain and analgesia have been well established. MMG22 is a bivalent ligand containing MOR agonist (oxymorphamine) and mGluR5 antagonist (MPEP) pharmacophores tethered by a 22-atom linker. MMG22 has been shown to produce potent analgesia in several models of chronic inflammatory and neuropathic pain (NP). This study assessed the efficacy of systemic administration of MMG22 at reducing pain behavior in the spared nerve injury (SNI) model of NP in mice, as well as its side-effect profile and abuse potential. MMG22 reduced mechanical hyperalgesia and spontaneous ongoing pain after SNI, with greater potency early (10 days) as compared to late (30 days) after injury. Systemic administration of MMG22 did not induce place preference in naive animals, suggesting absence of abuse liability when compared to traditional opioids. MMG22 also lacked the central locomotor, respiratory, and anxiolytic side effects of its monomeric pharmacophores. Evaluation of mRNA expression showed the transcripts for both receptors were colocalized in cells in the dorsal horn of the lumbar spinal cord and dorsal root ganglia. Thus, MMG22 reduces hyperalgesia after injury in the SNI model of NP without the typical centrally mediated side effects associated with traditional opioids.
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Affiliation(s)
- Rebecca Speltz
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, United States
- Department of Neuroscience, School of Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Mary M Lunzer
- Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, MN, United States
| | - Sarah S Shueb
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, United States
| | - Eyup Akgün
- Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, MN, United States
| | | | - Alex Kalyuzhny
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, United States
- Bio-Techne, Minneapolis, MN, United States
| | - Philip S Portoghese
- Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, MN, United States
| | - Donald A Simone
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, United States
- Department of Neuroscience, School of Medicine, University of Minnesota, Minneapolis, MN, United States
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95
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Zuniga A, Ryabinin AE, Cunningham CL. Effects of pharmacological inhibition of the centrally-projecting Edinger-Westphal nucleus on ethanol-induced conditioned place preference and body temperature. Alcohol 2020; 87:121-131. [PMID: 31926294 DOI: 10.1016/j.alcohol.2020.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/18/2019] [Accepted: 01/06/2020] [Indexed: 11/18/2022]
Abstract
Alcohol use disorder is a chronic disease characterized in part by repeated relapsing events. Exposure to environmental stimuli or cues that have previously been associated with the effects of alcohol can promote relapse through the triggering of craving for alcohol. Therefore, identifying and characterizing neuronal populations that may regulate these associations is of the upmost importance. Previous studies have implicated the centrally-projecting Edinger Westphal nucleus (EWcp) in this process, as the EWcp is both sensitive to, and can regulate alcohol intake. To date however, it is unclear if the EWcp is involved in the formation or expression of these alcohol-cue associations. As such, the present studies examined the involvement of the EWcp in male DBA/2J mice in the acquisition and expression of place preference for an alcohol-paired cue using the conditioned place preference (CPP) procedure. Pharmacological inhibition of the EWcp via the GABAA and GABAB receptor agonists muscimol and baclofen did not affect either the acquisition or the expression of CPP. Follow up studies did find however, that pharmacological inhibition of the EWcp increased body temperature and prevented alcohol-induced increases in c-Fos expression in the EWcp. When considered in light of previous studies, the present results indicate that the EWcp may be involved in the regulation of alcohol self-administration, and not conditioned alcohol-seeking. Additionally, the present studies provide further evidence for the involvement of the EWcp in thermoregulation and help elucidate the molecular mechanisms by which alcohol increases c-Fos in the EWcp.
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Affiliation(s)
- Alfredo Zuniga
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97239-3098, USA.
| | - Andrey E Ryabinin
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97239-3098, USA
| | - Christopher L Cunningham
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97239-3098, USA; Portland Alcohol Research Center, Oregon Health & Science University, Portland, OR, 97239-3098, USA
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96
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Xue S, Behnood-Rod A, Wilson R, Wilks I, Tan S, Bruijnzeel AW. Rewarding Effects of Nicotine in Adolescent and Adult Male and Female Rats as Measured Using Intracranial Self-stimulation. Nicotine Tob Res 2020; 22:172-179. [PMID: 30452710 DOI: 10.1093/ntr/nty249] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 11/14/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Tobacco is highly addictive, and after the development of dependence, it is difficult to quit smoking. Therefore, it is important to understand the factors that play a role in the initiation of smoking. The rewarding effects of nicotine play a role in the initiation of smoking and the goal of the present study was to determine the rewarding effects of nicotine in adolescent and adult male and female rats. METHODS Male and female Wistar rats were prepared with intracranial self-stimulation (ICSS) electrodes between postnatal day (P) 23 and 33. They were then trained on the ICSS procedure and the effect of nicotine (0, 0.03, 0.1, 0.3 mg/kg) on the reward thresholds and response latencies was investigated during adolescence (P40-59) or adulthood (>P75). RESULTS Nicotine lowered the brain reward thresholds of the adult and adolescent male and female rats. The nicotine-induced decrease in the reward thresholds was the same in the adult male and adult female rats. However, nicotine induced a greater decrease in the reward thresholds of the adolescent female rats than the adolescent male rats. Nicotine decreased the response latencies of all groups and there was no effect of age or sex. CONCLUSIONS Nicotine enhances reward function and psychomotor performance in adolescent and adult male and female rats. Adolescent female rats are more sensitive to the acute rewarding effects of nicotine than adolescent male rats. Therefore, the rewarding effects of nicotine might play a greater role in the initiation of smoking in adolescent females than in adolescent males. IMPLICATIONS The great majority of people start smoking during adolescence. The present studies suggest that during this period female rats are more sensitive to the acute rewarding effects of low and intermediate doses of nicotine than male rats. The rewarding properties of nicotine play a role in the initiation of smoking and establishing habitual smoking. Therefore, the present findings might explain why adolescent females are at a higher risk for becoming nicotine dependent than adolescent males.
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Affiliation(s)
- Song Xue
- Department of Psychiatry, University of Florida, Gainesville, FL
| | - Azin Behnood-Rod
- Department of Psychiatry, University of Florida, Gainesville, FL
| | - Ryann Wilson
- Department of Psychiatry, University of Florida, Gainesville, FL
| | - Isaac Wilks
- Department of Psychiatry, University of Florida, Gainesville, FL
| | - Sijie Tan
- Department of Psychiatry, University of Florida, Gainesville, FL.,Department of Histology and Embryology, University of South China, Hengyang, Hunan, China
| | - Adriaan W Bruijnzeel
- Department of Psychiatry, University of Florida, Gainesville, FL.,Department of Neuroscience, University of Florida, Gainesville, FL
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Ikekubo Y, Ide S, Hagino Y, Ikeda K. Absence of methamphetamine-induced conditioned place preference in weaver mutant mice. Neuropsychopharmacol Rep 2020; 40:324-331. [PMID: 32812711 PMCID: PMC7722684 DOI: 10.1002/npr2.12130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 12/30/2022] Open
Abstract
Aims G protein‐activated inwardly rectifying potassium (GIRK) channels are related to rewarding effects of addictive drugs. The GIRK2 subunit is thought to play key roles in the reward system. Weaver mutant mice exhibit abnormal GIRK2 function and different behaviors that are caused by several addictive substances compared with wild‐type mice. However, mechanisms of reward‐related alterations in weaver mutant mice remain unclear. The present study investigated changes in the rewarding effects of methamphetamine (METH) in weaver mutant mice. Methods The rewarding effects of METH (4.0 mg/kg) were investigated using the conditioned place preference (CPP) paradigm. Extracellular dopamine level in the nucleus accumbens (NAc) was measured by in vivo microdialysis. To identify brain regions that were associated with these changes in rewarding effects, METH‐induced alterations of Fos expression were investigated by immunohistochemical analysis. Results Weaver mutant mice exhibited a significant decrease in METH‐induced CPP and dopamine release in the NAc. Methamphetamine significantly increased Fos expression in the posterior NAc (pNAc) shell in wild‐type but not in weaver mutant mice. Conclusions Methamphetamine did not induce rewarding effects in weaver mutant mice. The pNAc shell exhibited a significant difference in neuronal activity between wild‐type and weaver mutant mice. The present results suggest that the absence of METH‐induced CPP in weaver mutant mice is probably related to an innate reduction of dopamine and decreased neural activity in the pNAc shell that is partially attributable to the change of GIRK channel function. GIRK channels, especially those containing the GIRK2 subunit, appear to be involved in METH dependence. Methamphetamine did not induce rewarding effects in weaver mutant mice that possess a mutation in the GIRK2 subunit. The posterior nucleus accumbens shell exhibited a significant difference in neuronal activity between wild‐type and weaver mutant mice.
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Affiliation(s)
- Yuiko Ikekubo
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.,Molecular and Cellular Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Soichiro Ide
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Yoko Hagino
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Kazutaka Ikeda
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.,Molecular and Cellular Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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98
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László K, Péczely L, Géczi F, Kovács A, Zagoracz O, Ollmann T, Kertes E, Kállai V, László B, Berta B, Karádi Z, Lénárd L. The role of D2 dopamine receptors in oxytocin induced place preference and anxiolytic effect. Horm Behav 2020; 124:104777. [PMID: 32439347 DOI: 10.1016/j.yhbeh.2020.104777] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/24/2020] [Accepted: 05/15/2020] [Indexed: 12/01/2022]
Abstract
Neuropeptide oxytocin (OT) is involved in the regulation of social and non-social behaviour. The central nucleus of amygdala (CeA), part of the limbic system, plays an important role in learning, memory, anxiety and reinforcing mechanisms. CeA has been shown to be rich in OT receptors in rodents. Our previous findings indicated that OT in the rat CeA has a dose dependent rewarding and anxiolytic effect. The aim of our present study was to examine in the CeA the possible interaction of OT and D2 dopamine (DA) receptor antagonist Sulpiride on reinforcement in place preference test and on anxiety in elevated plus maze test. Wistar rats were microinjected bilaterally with 10 ng OT. In different group of animals 4 μg D2 DA receptor antagonist was applied. Other animals received D2 DA receptor antagonist 15 min before 10 ng OT treatment or vehicle solution into the CeA. Rats receiving 10 ng OT spent significantly longer time in the treatment quadrant during the test session in conditioned place preference test. Prior treatment with D2 DA receptor antagonist blocked the rewarding effects of OT. Antagonist in itself did not influence the time rats spent in the treatment quadrant. In elevated plus maze test, rats receiving 10 ng OT spent significantly longer time on the open arms. Prior treatment with D2 DA receptor antagonist blocked the effects of OT. Our results show that DA system plays a role in positive reinforcing and anxiolytic effects of OT because D2 DA receptor antagonist can block these actions.
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MESH Headings
- Amygdala/drug effects
- Amygdala/metabolism
- Animals
- Anti-Anxiety Agents/pharmacology
- Anxiety/drug therapy
- Behavior, Animal/drug effects
- Conditioning, Classical/drug effects
- Dopamine D2 Receptor Antagonists/pharmacology
- Fear/drug effects
- Freezing Reaction, Cataleptic/drug effects
- Male
- Maze Learning/drug effects
- Oxytocin/pharmacology
- Rats
- Rats, Wistar
- Receptors, Dopamine D1/metabolism
- Receptors, Dopamine D2/metabolism
- Receptors, Dopamine D2/physiology
- Receptors, Oxytocin/metabolism
- Receptors, Oxytocin/physiology
- Reinforcement, Psychology
- Reward
- Spatial Behavior/drug effects
- Sulpiride/pharmacology
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Affiliation(s)
- K László
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary.
| | - L Péczely
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - F Géczi
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - A Kovács
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - O Zagoracz
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - T Ollmann
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - E Kertes
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - V Kállai
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - B László
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - B Berta
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - Z Karádi
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary; Molecular Endocrinology and Neurophysiology Research Group, University of Pécs, Szentágothai Center, Pécs, Hungary
| | - L Lénárd
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary; Molecular Endocrinology and Neurophysiology Research Group, University of Pécs, Szentágothai Center, Pécs, Hungary
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99
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Gibula-Tarlowska E, Wydra K, Kotlinska JH. Deleterious Effects of Ethanol, Δ(9)-Tetrahydrocannabinol (THC), and Their Combination on the Spatial Memory and Cognitive Flexibility in Adolescent and Adult Male Rats in the Barnes Maze Task. Pharmaceutics 2020; 12:pharmaceutics12070654. [PMID: 32660138 PMCID: PMC7407502 DOI: 10.3390/pharmaceutics12070654] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/03/2020] [Accepted: 07/07/2020] [Indexed: 11/29/2022] Open
Abstract
Research demonstrates that adolescents differ from adults in their response to drugs of abuse. The aim of the present study was to examine the influence of ethanol, Δ9-tetrahydrocannabinol hydrochloride (THC), and a combination of these drugs given during adolescence on spatial memory in adolescent and adult rats. Thus, adolescent rats (postnatal day (PND) 30) were subjected to the following groups: 0.9% NaCl; 1.5 g/kg ethanol; 1.0 mg/kg THC; 1.5 g/kg ethanol + 1.0 mg/kg THC. Rats received drug injection four times at three-day intervals. One day after the last injection, half of the treated animals were tested in the Barnes maze task, whereas the remaining animals were tested on PND 70. Results show that there was a significant age effect on spatial memory in the Barnes maze task after these drug administrations. Adolescent animals demonstrated more potent deficits in the spatial learning and memory (probe trial) and in cognitive flexibility (reversal learning) than did adults. However, in adult rats that received these drugs in adolescence, memory decline was observed only after ethanol and ethanol + THC administration. Thus, our results are important in understanding the deleterious impact of THC and/or ethanol abuse during adolescence on memory function across the lifespan (adolescent versus adult).
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Affiliation(s)
- Ewa Gibula-Tarlowska
- Department of Pharmacology and Pharmacodynamics, Medical University, 20-093 Lublin, Poland;
- Correspondence:
| | - Karolina Wydra
- Department of Drug Addiction Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, 31-343 Krakow, Poland;
| | - Jolanta H. Kotlinska
- Department of Pharmacology and Pharmacodynamics, Medical University, 20-093 Lublin, Poland;
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100
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El Rawas R, Amaral IM, Hofer A. Is p38 MAPK Associated to Drugs of Abuse-Induced Abnormal Behaviors? Int J Mol Sci 2020; 21:E4833. [PMID: 32650599 PMCID: PMC7402127 DOI: 10.3390/ijms21144833] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/02/2020] [Accepted: 07/07/2020] [Indexed: 02/06/2023] Open
Abstract
The family members of the mitogen-activated protein kinases (MAPK) mediate a wide variety of cellular behaviors in response to extracellular stimuli. p38 MAPKs are key signaling molecules in cellular responses to external stresses and regulation of pro-inflammatory cytokines. Some studies have suggested that p38 MAPK in the region of the nucleus accumbens is involved in abnormal behavioral responses induced by drugs of abuse. In this review, we discuss the role of the p38 MAPK in the rewarding effects of drugs of abuse. We also summarize the implication of p38 MAPK in stress, anxiety, and depression. We opine that p38 MAPK activation is more closely associated to stress-induced aversive responses rather than drug effects per se, in particular cocaine. p38 MAPK is only involved in cocaine reward, predominantly when promoted by stress. Downstream substrates of p38 that may contribute to the p38 MAPK associated-behavioral responses are proposed. Finally, we suggest p38 MAPK inhibitors as possible therapeutic interventions against stress-related disorders by potentially increasing resilience against stress and addiction relapse induced by adverse experiences.
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Affiliation(s)
- Rana El Rawas
- Experimental Addiction Research, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, 6020 Innsbruck, Austria; (I.M.A.); (A.H.)
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