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Junior MSC, Bezerra AG, Curado DF, Gregório RP, Galduróz JCF. Preliminary investigation of the administration of biperiden to reduce relapses in individuals with cocaine/crack user disorder: A randomized controlled clinical trial. Pharmacol Biochem Behav 2024; 237:173725. [PMID: 38340989 DOI: 10.1016/j.pbb.2024.173725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/17/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Several studies have demonstrated that ACh modulates the dopaminergic circuit in the nucleus accumbens, and its blockade appears to be associated with the inhibition of the reinforced effect or the increase in dopamine caused by cocaine use. The objective of this study was to evaluate the effect of biperiden (a muscarinic receptor antagonist with a relatively higher affinity for the M1 receptor) on crack/cocaine use relapse compared to a control group that received placebo. METHODS This study is a double-blind, randomized, placebo-controlled clinical trial. The intervention group received 2 mg of biperiden, 3 times a day, for a period of 3 months. The control group received identical placebo capsules, at the same frequency and over the same period. All participants were followed for a period of six months. RESULTS The sample comprised 128 people, with 61 in the control group and 67 in the biperiden group. Lower substance consumption was observed in the group that received biperiden treatment two (bT2 = -2.2 [-3.3; -1.0], p < 0.001) and six months (bT4 = -6, 2 [-8.6; -3.9], p < 0.001) after the beginning of the intervention. The biperiden group had a higher latency until a possible first day of consumption, in the same evaluation periods (bT2 = 0.26 [0.080; 0.44], p = 0.004; bT4 = 0.63 [0.32; 0.93], p < 0.001). CONCLUSIONS Despite the major limitations of the present study, the group that received biperiden reduced the number of days of cocaine/crack use and showed an increase in the latency time for relapse. More studies are needed to confirm the utility of this approach.
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Wolter M, Lapointe T, Baidoo N, Mitchnick KA, Wideman C, Winters BD, Leri F. Double dissociation of perirhinal nicotinic acetylcholine receptors and dopamine D2 receptors in modulation of object memory consolidation by nicotine, cocaine and their conditioned stimuli. Eur Neuropsychopharmacol 2023; 72:50-59. [PMID: 37086715 DOI: 10.1016/j.euroneuro.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/27/2023] [Accepted: 04/03/2023] [Indexed: 04/24/2023]
Abstract
There are indications that drug conditioned stimuli (CS) may activate neurochemical systems of memory modulation that are activated by the drugs themselves. To directly test this hypothesis, a cholinergic nicotinic receptor antagonist (mecamylamine; MEC: 0, 10 or 30 µg/side) and a dopamine D2 receptor antagonist (l-741,626: 0, 0.63, 2.5 µg/side) were infused in the perirhinal cortex (PRh) to block modulation of object recognition memory consolidation induced by 0.4 mg/kg nicotine, 20 mg/kg cocaine, or their CSs. To establish these CSs, male Sprague-Dawley rats were confined for 2 h in a chamber, the CS+, after injections of 0.4 mg/kg nicotine, or 20 mg/kg cocaine, and in another chamber, the CS-, after injections of vehicle. This was repeated over 10 days (5 drug/CS+ and 5 vehicle/CS- pairings in total). It was found that the memory enhancing action of post-sample nicotine was blocked by intra-PRh infusions of both MEC doses, and 30 µg/side MEC also blocked the memory enhancing action of the nicotine CS. Interestingly, intra-PRh MEC did not block the memory enhancing effect of cocaine, nor that of the cocaine CS. In contrast, the memory enhancing action of post-sample cocaine administration was blocked by both l-741,626 doses, and 2.5 µg/side also blocked the effect of the cocaine CS, but not the memory effects of nicotine or of the nicotine CS. This functional double dissociation strongly indicates that drug CSs modulate memory consolidation by activating neural systems that are activated by the drugs themselves.
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Affiliation(s)
- Michael Wolter
- Department of Psychology & Neuroscience Specialization, University of Guelph, ON, N1G 2W1 Canada
| | - Thomas Lapointe
- Department of Psychology & Neuroscience Specialization, University of Guelph, ON, N1G 2W1 Canada
| | - Nana Baidoo
- Department of Psychology & Neuroscience Specialization, University of Guelph, ON, N1G 2W1 Canada
| | | | - Cassidy Wideman
- Department of Psychology & Neuroscience Specialization, University of Guelph, ON, N1G 2W1 Canada
| | - Boyer D Winters
- Department of Psychology & Neuroscience Specialization, University of Guelph, ON, N1G 2W1 Canada
| | - Francesco Leri
- Department of Psychology & Neuroscience Specialization, University of Guelph, ON, N1G 2W1 Canada.
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Continuous cholinergic-dopaminergic updating in the nucleus accumbens underlies approaches to reward-predicting cues. Nat Commun 2022; 13:7924. [PMID: 36564387 PMCID: PMC9789106 DOI: 10.1038/s41467-022-35601-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/13/2022] [Indexed: 12/25/2022] Open
Abstract
The ability to learn Pavlovian associations from environmental cues predicting positive outcomes is critical for survival, motivating adaptive behaviours. This cued-motivated behaviour depends on the nucleus accumbens (NAc). NAc output activity mediated by spiny projecting neurons (SPNs) is regulated by dopamine, but also by cholinergic interneurons (CINs), which can release acetylcholine and glutamate via the activity of the vesicular acetylcholine transporter (VAChT) or the vesicular glutamate transporter (VGLUT3), respectively. Here we investigated behavioural and neurochemical changes in mice performing a touchscreen Pavlovian approach task by recording dopamine, acetylcholine, and calcium dynamics from D1- and D2-SPNs using fibre photometry in control, VAChT or VGLUT3 mutant mice to understand how these signals cooperate in the service of approach behaviours toward reward-predicting cues. We reveal that NAc acetylcholine-dopaminergic signalling is continuously updated to regulate striatal output underlying the acquisition of Pavlovian approach learning toward reward-predicting cues.
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Phosphoproteomic of the acetylcholine pathway enables discovery of the PKC-β-PIX-Rac1-PAK cascade as a stimulatory signal for aversive learning. Mol Psychiatry 2022; 27:3479-3492. [PMID: 35665767 PMCID: PMC9708603 DOI: 10.1038/s41380-022-01643-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 05/13/2022] [Accepted: 05/23/2022] [Indexed: 11/08/2022]
Abstract
Acetylcholine is a neuromodulator critical for learning and memory. The cholinesterase inhibitor donepezil increases brain acetylcholine levels and improves Alzheimer's disease (AD)-associated learning disabilities. Acetylcholine activates striatal/nucleus accumbens dopamine receptor D2-expressing medium spiny neurons (D2R-MSNs), which regulate aversive learning through muscarinic receptor M1 (M1R). However, how acetylcholine stimulates learning beyond M1Rs remains unresolved. Here, we found that acetylcholine stimulated protein kinase C (PKC) in mouse striatal/nucleus accumbens. Our original kinase-oriented phosphoproteomic analysis revealed 116 PKC substrate candidates, including Rac1 activator β-PIX. Acetylcholine induced β-PIX phosphorylation and activation, thereby stimulating Rac1 effector p21-activated kinase (PAK). Aversive stimulus activated the M1R-PKC-PAK pathway in mouse D2R-MSNs. D2R-MSN-specific expression of PAK mutants by the Cre-Flex system regulated dendritic spine structural plasticity and aversive learning. Donepezil induced PAK activation in both accumbal D2R-MSNs and in the CA1 region of the hippocampus and enhanced D2R-MSN-mediated aversive learning. These findings demonstrate that acetylcholine stimulates M1R-PKC-β-PIX-Rac1-PAK signaling in D2R-MSNs for aversive learning and imply the cascade's therapeutic potential for AD as aversive learning is used to preliminarily screen AD drugs.
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5
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Ujan R, Channar PA, Bahadur A, Abbas Q, Shah M, Rashid S, Iqbal S, Saeed A, Abd-Rabboh HS, Raza H, Hassan M, Siyal AN, Mahesar PA, Lal B, Channar KA, Khan BA, Nawaz M, Rajoka MSR, Kim JM. Synthesis, kinetics and biological assay of some novel aryl bis-thioureas: A potential drug candidates for Alzheimer's disease. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Ventral tegmental area GABAergic inhibition of cholinergic interneurons in the ventral nucleus accumbens shell promotes reward reinforcement. Nat Neurosci 2021; 24:1414-1428. [PMID: 34385700 PMCID: PMC8823543 DOI: 10.1038/s41593-021-00898-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 06/24/2021] [Indexed: 02/07/2023]
Abstract
The long-range GABAergic input from the ventral tegmental area (VTA) to the nucleus accumbens (NAc) is relatively understudied, and therefore its role in reward processing has remained unknown. In the present study, we show, in both male and female mice, that long-range GABAergic projections from the VTA to the ventral NAc shell, but not to the dorsal NAc shell or NAc core, are engaged in reward and reinforcement behavior. We show that this GABAergic projection exclusively synapses on to cholinergic interneurons (CINs) in the ventral NAc shell, thereby serving a specialized function in modulating reinforced reward behavior through the inhibition of ventral NAc shell CINs. These findings highlight the diversity in the structural and functional topography of VTA GABAergic projections, and their neuromodulatory interactions across the dorsoventral gradient of the NAc shell. They also further our understanding of neuronal circuits that are directly implicated in neuropsychiatric conditions such as depression and addiction.
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Jiang X, Zhang JJ, Song S, Li Y, Sui N. The duration of withdrawal affects the muscarinic signaling in the nucleus accumbens after chronic morphine exposure in neonatal rats. J Neurophysiol 2021; 125:2228-2236. [PMID: 33978485 DOI: 10.1152/jn.00441.2020] [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: 11/22/2022] Open
Abstract
The infants experience withdrawal from opiates, and time-dependent adaptations in neuronal activity of nucleus accumbens (NAc) may be crucial for this process. A key adaptation is an increased release of acetylcholine. The present study investigates muscarinic acetylcholine receptors (mAChRs) functions in the NAc at short-term (SWT) and long-term (LWT) withdrawal time following chronic morphine exposure in neonatal rats. The inhibitory role of presynaptic mAChRs activation in spontaneous excitatory postsynaptic currents (sEPSCs) in medium spiny neurons was decreased at LWT but not at SWT. Whereas, the excitatory role of post/extrasynaptic mAChRs activation in membrane currents was reduced at LWT but enhanced at SWT. Furthermore, the inhibitory effect of acute morphine on post/extrasynaptic mAChRs-mediated inward currents was enhanced at SWT but not at LWT. These results suggest that withdrawal from morphine leads to downregulation of presynaptic and post/extrasynaptic mAChRs functions in the NAc, which may coregulate the development of withdrawal in neonates.NEW & NOTEWORTHY We investigated for the first time how the duration of withdrawal affects mAChRs functions in the nucleus accumbens in neonatal rats. Compared with short-term withdrawal time, rats showed downregulation of presynaptic and post/extrasynaptic mAChRs functions during long-term withdrawal time. Our finding introduces a new possible correlation between the mAChRs dysfunction in the nucleus accumbens and the development of withdrawal in neonates.
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Affiliation(s)
- Xiao Jiang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.,Department of Medical Psychology, School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, People's Republic of China
| | - Jian-Jun Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Sen Song
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, People's Republic of China
| | - Yonghui Li
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Nan Sui
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China
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8
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Eltom EH, Mahmoud Ibrahim MK, Elmorsy EM. Tropicamide abuse and regulatory measures in a Sudanese hospital. Indian J Pharmacol 2021; 52:529-530. [PMID: 33666197 PMCID: PMC8092183 DOI: 10.4103/ijp.ijp_635_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
| | | | - Ekramy Mahmoud Elmorsy
- Department of Clinical Toxicology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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9
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Palombo P, Engi SA, Yokoyama TS, Bezerra AG, Curado DF, Anésio A, Leão RM, Santos PCJDL, Cruz FC, Galduróz JCF. Effects of biperiden (cholinergic muscarinic m1/m4 receptor antagonist) on ethanol conditioned place preference in mice. Neurosci Lett 2020; 745:135551. [PMID: 33346074 DOI: 10.1016/j.neulet.2020.135551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 12/01/2020] [Accepted: 12/04/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Previous studies suggest that muscarinic cholinergic receptors might act upon the dopamine release in the mesolimbic system and alter drug-reinforcing values related to drug craving. AIMS We examined the effects of systemic biperiden administration, a muscarinic cholinergic (M1/M4) receptor antagonist, on ethanol (dose of 2 g/Kg) conditioned place preference (CPP), neuronal activation, dopamine and its metabolites levels in the nucleus accumbens. METHODS Thirty minutes before the ethanol-induced CPP test, mice received saline or biperiden at doses of 1.0, 5.0, or 10.0 mg/kg. The time spent in each compartment was recorded for 15 min. After the CPP protocol, animals were euthanized, and we investigated the activation of the nucleus accumbens by immunohistochemistry for Fos. We also quantified dopamine, homovanillic acid (HVA), and dihydroxyphenylacetic acid (DOPAC) levels in the nucleus accumbens by high-performance liquid chromatography (HPLC). Additionally, the rotarod was employed to evaluate the effects of biperiden on motor coordination. RESULTS Biperiden at different doses (1.0, 5.0, and 10.0 mg/kg) blocked the expression of ethanol-induced CPP. These biperiden doses increased the number of Fos-positive cells and the dopamine turnover in the nucleus accumbens. None of the doses affected the motor coordination evaluated by the rotarod. CONCLUSIONS Our results show that biperiden can modulate the effect of alcohol reward, and its mechanism of action may involve a change in dopamine and cholinergic mesolimbic neurotransmission.
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Affiliation(s)
- Paola Palombo
- Departamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sheila Antonagi Engi
- Departamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Thais Suemi Yokoyama
- Departamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | - Augusto Anésio
- Departamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Rodrigo Molini Leão
- Laboratório de Farmacologia, Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia - UFU, Uberlândia, Brazil
| | | | - Fábio Cardoso Cruz
- Departamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil.
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10
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Lee JH, Ribeiro EA, Kim J, Ko B, Kronman H, Jeong YH, Kim JK, Janak PH, Nestler EJ, Koo JW, Kim JH. Dopaminergic Regulation of Nucleus Accumbens Cholinergic Interneurons Demarcates Susceptibility to Cocaine Addiction. Biol Psychiatry 2020; 88:746-757. [PMID: 32622465 PMCID: PMC7584775 DOI: 10.1016/j.biopsych.2020.05.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/28/2020] [Accepted: 05/05/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Cholinergic interneurons (ChINs) in the nucleus accumbens (NAc) play critical roles in processing information related to reward. However, the contribution of ChINs to the emergence of addiction-like behaviors and its underlying molecular mechanisms remain elusive. METHODS We employed cocaine self-administration to identify two mouse subpopulations: susceptible and resilient to cocaine seeking. We compared the subpopulations for physiological responses with single-unit recording of NAc ChINs, and for gene expression levels with RNA sequencing of ChINs sorted using fluorescence-activated cell sorting. To provide evidence for a causal relationship, we manipulated the expression level of dopamine D2 receptor (DRD2) in ChINs in a cell type-specific manner. Using optogenetic activation combined with a double whole-cell recording, the effect of ChIN-specific DRD2 manipulation on each synaptic input was assessed in NAc medium spiny neurons in a pathway-specific manner. RESULTS Susceptible mice showed higher levels of nosepoke responses under a progressive ratio schedule, and impairment in extinction and punishment procedures. DRD2 was highly abundant in the NAc ChINs of susceptible mice. Elevated abundance of DRD2 in NAc ChINs was sufficient and necessary to express high cocaine motivation, putatively through reduction of ChIN activity during cocaine exposure. DRD2 overexpression in ChINs mimicked cocaine-induced effects on the dendritic spine density and the ratios of excitatory inputs between two distinct medium spiny neuron cell types, while DRD2 depletion precluded cocaine-induced synaptic plasticity. CONCLUSIONS These findings provide a molecular mechanism for dopaminergic control of NAc ChINs that can control the susceptibility to cocaine-seeking behavior.
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Affiliation(s)
- Joo Han Lee
- Department of Life Sciences, Pohang University of Science
and Technology (POSTECH), Pohang, Gyeongbuk, Republic of Korea
| | - Efrain A Ribeiro
- Nash Family Department of Neuroscience, Friedman Brain
Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jeongseop Kim
- Department of Neural Development and Disease, Korea Brain
Research Institute (KBRI), Daegu, Republic of Korea.,Department of Brain and Cognitive Sciences, Daegu Gyeongbuk
Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Bumjin Ko
- Department of Life Sciences, Pohang University of Science
and Technology (POSTECH), Pohang, Gyeongbuk, Republic of Korea
| | - Hope Kronman
- Nash Family Department of Neuroscience, Friedman Brain
Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yun Ha Jeong
- Department of Neural Development and Disease, Korea Brain
Research Institute (KBRI), Daegu, Republic of Korea
| | | | - Patricia H Janak
- Department of Psychological and Brain Sciences, Krieger
School of Arts and Sciences, Johns Hopkins University, Baltimore, MD, USA.,The Solomon H. Snyder Department of Neuroscience, Johns
Hopkins School of Medicine, Johns Hopkins University, Baltimore, MD, USA.,Kavli Neuroscience Discovery Institute, Johns Hopkins
School of Medicine, Baltimore, MD, USA
| | - Eric J Nestler
- Nash Family Department of Neuroscience, Friedman Brain
Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ja Wook Koo
- Department of Neural Development and Disease, Korea Brain Research Institute, Daegu, Republic of Korea; Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science and Technology, Daegu, Republic of Korea.
| | - Joung-Hun Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea.
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11
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Collins AL, Aitken TJ, Huang IW, Shieh C, Greenfield VY, Monbouquette HG, Ostlund SB, Wassum KM. Nucleus Accumbens Cholinergic Interneurons Oppose Cue-Motivated Behavior. Biol Psychiatry 2019; 86:388-396. [PMID: 30955842 PMCID: PMC7003647 DOI: 10.1016/j.biopsych.2019.02.014] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Environmental reward-predictive stimuli provide a major source of motivation for adaptive reward pursuit behavior. This cue-motivated behavior is known to be mediated by the nucleus accumbens (NAc) core. The cholinergic interneurons in the NAc are tonically active and densely arborized and thus well suited to modulate NAc function. However, their causal contribution to adaptive behavior remains unknown. Here we investigated the function of NAc cholinergic interneurons in cue-motivated behavior. METHODS We used chemogenetics, optogenetics, pharmacology, and a translationally analogous Pavlovian-to-instrumental transfer behavioral task designed to assess the motivating influence of a reward-predictive cue over reward-seeking actions in male and female rats. RESULTS The data show that NAc cholinergic interneuron activity critically opposes the motivating influence of appetitive cues. Chemogenetic inhibition of NAc cholinergic interneurons augmented cue-motivated behavior. Optical stimulation of acetylcholine release from NAc cholinergic interneurons prevented cues from invigorating reward-seeking behavior, an effect that was mediated by activation of β2-containing nicotinic acetylcholine receptors. CONCLUSIONS NAc cholinergic interneurons provide a critical regulatory influence over adaptive cue-motivated behavior and therefore are a potential therapeutic target for the maladaptive cue-motivated behavior that marks many psychiatric conditions, including addiction and depression.
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Affiliation(s)
- Anne L Collins
- Department of Psychology, University of California, Los Angeles, Los Angeles, California
| | - Tara J Aitken
- Department of Psychology, University of California, Los Angeles, Los Angeles, California
| | - I-Wen Huang
- Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California
| | - Christine Shieh
- Department of Psychology, University of California, Los Angeles, Los Angeles, California
| | - Venuz Y Greenfield
- Department of Psychology, University of California, Los Angeles, Los Angeles, California
| | - Harold G Monbouquette
- Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California
| | - Sean B Ostlund
- Department of Anesthesiology and Perioperative Care, University of California, Irvine, Irvine, California
| | - Kate M Wassum
- Department of Psychology, University of California, Los Angeles, Los Angeles, California; Brain Research Institute, University of California, Los Angeles, Los Angeles, California.
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12
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Patel M, Verrico CD, De La Garza R. Rivastigmine does not alter cocaine-induced subjective effects or self-administration. Pharmacol Biochem Behav 2019; 185:172758. [PMID: 31430484 DOI: 10.1016/j.pbb.2019.172758] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 07/01/2019] [Accepted: 08/10/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Acetylcholinergic (ACh) neurons interface with the mesolimbic dopamine pathway implicated in addiction, and acetylcholinesterase inhibitors (AChEis) have been shown to reduce the immediate effects of cocaine and amount used. Our study is the first to examine if the safe and low-interaction AChEi rivastigmine (riv) alters the subjective effects produced by cocaine administration. METHODS Cocaine-dependent subjects were randomized to daily placebo, riv 3 mg, or riv 6 mg, administered inpatient for 10 days. On day 1 (pre-dose) and day 9, subjects received both IV cocaine 40 mg or placebo in a randomized order with subsequent serial assessments of visual analog scale (VAS) subjective effects and pharmacokinetic measurements. On day 10 all participants received one baseline dose of cocaine 20 mg with assessment of subjective effects, and were then able to purchase additional doses at 15 min intervals with study earnings. RESULTS 40 subjects were randomized to placebo (n = 16), riv 3 mg (n = 13), or riv 6 mg (n = 12). All subjects completed the study and there were no demographic differences between treatment groups. Pre- and post- treatment, there were no significant pharmacokinetic differences (blood levels of cocaine, BE, EME) following cocaine administration. In a two-way ANOVA, IV cocaine significantly increased positive VAS category ratings compared to placebo, but rivastigmine treatment at either dose had no significant effect on any VAS category ratings. Similarly, there was no significant rivastigmine effect on any category in the day 10 cocaine administration, and no effect on number of subsequent doses participants purchased. CONCLUSION Rivastigmine 3 or 6 mg had no significant effect on the subjective effects of cocaine after 9 days of treatment. This is an important finding as other drugs in the AChEi class (donepezil, Huperzine A) have produced significant results, but differ in their receptor specificity and PK parameters.
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Affiliation(s)
- M Patel
- Baylor College of Medicine, Menninger Department of Psychiatry, Houston, TX, United States of America
| | - C D Verrico
- Baylor College of Medicine, Menninger Department of Psychiatry, Houston, TX, United States of America
| | - R De La Garza
- Baylor College of Medicine, Menninger Department of Psychiatry, Houston, TX, United States of America.
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13
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DeVito EE, Carroll KM, Babuscio T, Nich C, Sofuoglu M. Randomized placebo-controlled trial of galantamine in individuals with cocaine use disorder. J Subst Abuse Treat 2019; 107:29-37. [PMID: 31757262 DOI: 10.1016/j.jsat.2019.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 12/14/2022]
Abstract
No pharmacotherapies are approved for the treatment of cocaine use disorder (CUD). Galantamine, a cholinesterase inhibitor, has shown initial promise for cocaine use reduction in methadone-maintained individuals with CUD and cognitive improvement in abstinent individuals with past CUD. However, galantamine has not previously tested in individuals with current CUD and no comorbid opioid use disorder or methadone maintenance. The goal of this 13-week, double-blind, placebo-controlled, randomized controlled trial was to test the efficacy of galantamine (8 mg or 16 mg/day; extended release (ER)) for reducing cocaine use and improving cognitive function in individuals with cocaine use disorder (CUD). Ninety-three treatment-seeking cocaine users were randomized to placebo (n = 32), 8 mg/day galantamine (n = 31) or 16 mg/day galantamine (n = 30). The medication was well-tolerated with minimal reports of side-effects. However, there were no significant treatment group differences in cocaine use outcomes (as measured by self-report or urines). The 16 mg galantamine group had a greater improvement in working memory capacity (Backwards Digit Span), but there were no other significant treatment group differences on key cognitive outcomes. These findings did not provide support for the efficacy of galantamine as a treatment for cocaine use in this sample of individuals with CUD.
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Affiliation(s)
- Elise E DeVito
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Kathleen M Carroll
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Theresa Babuscio
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Charla Nich
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Mehmet Sofuoglu
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America; VA Connecticut Healthcare System, West Haven, CT, United States of America.
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14
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Carroll KM, DeVito EE, Yip SW, Nich C, Sofuoglu M. Double‐Blind Placebo‐Controlled Trial of Galantamine for Methadone‐Maintained Individuals With Cocaine Use Disorder: Secondary Analysis of Effects on Illicit Opioid Use. Am J Addict 2019; 28:238-245. [DOI: 10.1111/ajad.12904] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/21/2019] [Accepted: 04/21/2019] [Indexed: 12/22/2022] Open
Affiliation(s)
- Kathleen M. Carroll
- Department of Psychiatry, Division on AddictionYale University School of MedicineNew Haven Connecticut
| | - Elise E. DeVito
- Department of Psychiatry, Division on AddictionYale University School of MedicineNew Haven Connecticut
| | - Sarah W. Yip
- Department of Psychiatry, Division on AddictionYale University School of MedicineNew Haven Connecticut
| | - Charla Nich
- Department of Psychiatry, Division on AddictionYale University School of MedicineNew Haven Connecticut
| | - Mehmet Sofuoglu
- Department of Psychiatry, Division on AddictionYale University School of MedicineNew Haven Connecticut
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15
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Cholinergic M4 receptors are involved in morphine-induced expression of behavioral sensitization by regulating dopamine function in the nucleus accumbens of rats. Behav Brain Res 2019; 360:128-133. [DOI: 10.1016/j.bbr.2018.12.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 12/28/2022]
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16
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Wiss DA, Avena N, Rada P. Sugar Addiction: From Evolution to Revolution. Front Psychiatry 2018; 9:545. [PMID: 30464748 PMCID: PMC6234835 DOI: 10.3389/fpsyt.2018.00545] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 10/12/2018] [Indexed: 12/12/2022] Open
Abstract
The obesity epidemic has been widely publicized in the media worldwide. Investigators at all levels have been looking for factors that have contributed to the development of this epidemic. Two major theories have been proposed: (1) sedentary lifestyle and (2) variety and ease of inexpensive palatable foods. In the present review, we analyze how nutrients like sugar that are often used to make foods more appealing could also lead to habituation and even in some cases addiction thereby uniquely contributing to the obesity epidemic. We review the evolutionary aspects of feeding and how they have shaped the human brain to function in "survival mode" signaling to "eat as much as you can while you can." This leads to our present understanding of how the dopaminergic system is involved in reward and its functions in hedonistic rewards, like eating of highly palatable foods, and drug addiction. We also review how other neurotransmitters, like acetylcholine, interact in the satiation processes to counteract the dopamine system. Lastly, we analyze the important question of whether there is sufficient empirical evidence of sugar addiction, discussed within the broader context of food addiction.
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Affiliation(s)
- David A. Wiss
- Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, United States
| | - Nicole Avena
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Pedro Rada
- School of Medicine, University of Los Andes, Mérida, Venezuela
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17
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Jensen KP, DeVito EE, Yip S, Carroll KM, Sofuoglu M. The Cholinergic System as a Treatment Target for Opioid Use Disorder. CNS Drugs 2018; 32:981-996. [PMID: 30259415 PMCID: PMC6314885 DOI: 10.1007/s40263-018-0572-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Opioid overdoses recently became the leading cause of accidental death in the US, marking an increase in the severity of the opioid use disorder (OUD) epidemic that is impacting global health. Current treatment protocols for OUD are limited to opioid medications, including methadone, buprenorphine, and naltrexone. While these medications are effective in many cases, new treatments are required to more effectively address the rising societal and interpersonal costs associated with OUD. In this article, we review the opioid and cholinergic systems, and examine the potential of acetylcholine (ACh) as a treatment target for OUD. The cholinergic system includes enzymes that synthesize and degrade ACh and receptors that mediate the effects of ACh. ACh is involved in many central nervous system functions that are critical to the development and maintenance of OUD, such as reward and cognition. Medications that target the cholinergic system have been approved for the treatment of Alzheimer's disease, tobacco use disorder, and nausea. Clinical and preclinical studies suggest that medications such as cholinesterase inhibitors and scopolamine, which target components of the cholinergic system, show promise for the treatment of OUD and further investigations are warranted.
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Affiliation(s)
- Kevin P Jensen
- Department of Psychiatry and VA Connecticut Healthcare System, Yale University, School of Medicine, 950 Campbell Ave, Bldg 36/116A4, West Haven, CT, 06516, USA
| | - Elise E DeVito
- Department of Psychiatry and VA Connecticut Healthcare System, Yale University, School of Medicine, 950 Campbell Ave, Bldg 36/116A4, West Haven, CT, 06516, USA
| | - Sarah Yip
- Department of Psychiatry and VA Connecticut Healthcare System, Yale University, School of Medicine, 950 Campbell Ave, Bldg 36/116A4, West Haven, CT, 06516, USA
| | - Kathleen M Carroll
- Department of Psychiatry and VA Connecticut Healthcare System, Yale University, School of Medicine, 950 Campbell Ave, Bldg 36/116A4, West Haven, CT, 06516, USA
| | - Mehmet Sofuoglu
- Department of Psychiatry and VA Connecticut Healthcare System, Yale University, School of Medicine, 950 Campbell Ave, Bldg 36/116A4, West Haven, CT, 06516, USA.
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18
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Lindroos R, Dorst MC, Du K, Filipović M, Keller D, Ketzef M, Kozlov AK, Kumar A, Lindahl M, Nair AG, Pérez-Fernández J, Grillner S, Silberberg G, Hellgren Kotaleski J. Basal Ganglia Neuromodulation Over Multiple Temporal and Structural Scales-Simulations of Direct Pathway MSNs Investigate the Fast Onset of Dopaminergic Effects and Predict the Role of Kv4.2. Front Neural Circuits 2018; 12:3. [PMID: 29467627 PMCID: PMC5808142 DOI: 10.3389/fncir.2018.00003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 01/09/2018] [Indexed: 12/16/2022] Open
Abstract
The basal ganglia are involved in the motivational and habitual control of motor and cognitive behaviors. Striatum, the largest basal ganglia input stage, integrates cortical and thalamic inputs in functionally segregated cortico-basal ganglia-thalamic loops, and in addition the basal ganglia output nuclei control targets in the brainstem. Striatal function depends on the balance between the direct pathway medium spiny neurons (D1-MSNs) that express D1 dopamine receptors and the indirect pathway MSNs that express D2 dopamine receptors. The striatal microstructure is also divided into striosomes and matrix compartments, based on the differential expression of several proteins. Dopaminergic afferents from the midbrain and local cholinergic interneurons play crucial roles for basal ganglia function, and striatal signaling via the striosomes in turn regulates the midbrain dopaminergic system directly and via the lateral habenula. Consequently, abnormal functions of the basal ganglia neuromodulatory system underlie many neurological and psychiatric disorders. Neuromodulation acts on multiple structural levels, ranging from the subcellular level to behavior, both in health and disease. For example, neuromodulation affects membrane excitability and controls synaptic plasticity and thus learning in the basal ganglia. However, it is not clear on what time scales these different effects are implemented. Phosphorylation of ion channels and the resulting membrane effects are typically studied over minutes while it has been shown that neuromodulation can affect behavior within a few hundred milliseconds. So how do these seemingly contradictory effects fit together? Here we first briefly review neuromodulation of the basal ganglia, with a focus on dopamine. We furthermore use biophysically detailed multi-compartmental models to integrate experimental data regarding dopaminergic effects on individual membrane conductances with the aim to explain the resulting cellular level dopaminergic effects. In particular we predict dopaminergic effects on Kv4.2 in D1-MSNs. Finally, we also explore dynamical aspects of the onset of neuromodulation effects in multi-scale computational models combining biochemical signaling cascades and multi-compartmental neuron models.
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Affiliation(s)
- Robert Lindroos
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
| | - Matthijs C. Dorst
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
| | - Kai Du
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
| | - Marko Filipović
- Bernstein Center Freiburg, University of Freiburg, Freiburg im Breisgau, Germany
| | - Daniel Keller
- Blue Brain Project, Ecole Polytechnique Fédérale de Lausanne, Geneva, Switzerland
| | - Maya Ketzef
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
| | - Alexander K. Kozlov
- Science for Life Laboratory, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Solna, Sweden
| | - Arvind Kumar
- Bernstein Center Freiburg, University of Freiburg, Freiburg im Breisgau, Germany
- Department Computational Science and Technology, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mikael Lindahl
- Science for Life Laboratory, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Solna, Sweden
| | - Anu G. Nair
- Science for Life Laboratory, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Solna, Sweden
| | - Juan Pérez-Fernández
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
| | - Sten Grillner
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
| | - Gilad Silberberg
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
| | - Jeanette Hellgren Kotaleski
- Department of Neuroscience, Nobel Institute for Neurophysiology, Stockholm, Sweden
- Science for Life Laboratory, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Solna, Sweden
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19
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Liu X, Tian L, Cui R, Ruan H, Li X. Muscarinic receptors in the nucleus accumbens shell play different roles in context-induced or morphine-challenged expression of behavioral sensitization in rats. Eur J Pharmacol 2018; 819:51-57. [PMID: 29196177 DOI: 10.1016/j.ejphar.2017.11.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/17/2017] [Accepted: 11/24/2017] [Indexed: 01/01/2023]
Abstract
Both drug-related cues and drug priming are the main factors that induce relapse of drug addiction. Previous research has reported that blockade of the muscarinic receptors could significantly depress addictive behavior, suggesting that the muscarinic receptors might be involved in drug use and relapse behavior. The nucleus accumbens (NAc), especially the shell of the NAc, where the muscarinic receptors are expressed, is critical for craving and relapse. This study investigated the effects of microinfusion of the muscarinic receptor antagonist scopolamine into the NAc shell on context- and morphine-induced expression of behavioral sensitization. Behavioral sensitization was established by exposure to 5mg/kg morphine once daily for five consecutive days. Expression of behavioral sensitization was induced by saline challenge or 5mg/kg morphine challenge. The results showed that: (a) the muscarinic receptor antagonist scopolamine (10.8μg/rat) microinjected into the NAc shell blocked expression of conditional sensitization; (b) acetylcholinesterase inhibitor huperzine-A (0.5 and 0.1μg/rat), but not scopolamine (10.8μg/rat), microinjected into the NAc shell blocked morphine-induced expression of sensitization; and (c) pre-infusion of scopolamine (10.8μg/rat) reversed the inhibitory effect of huperzine-A (0.5μg/rat) on morphine-induced sensitization. Our findings suggest that muscarinic receptors in the NAc shell play different roles in context-induced and morphine-challenged expression of behavioral sensitization.
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Affiliation(s)
- Xinhe Liu
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China
| | - Lin Tian
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China
| | - Ruisi Cui
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China
| | - Heng Ruan
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China
| | - Xinwang Li
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China.
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20
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Tsutiya A, Nakano Y, Hansen-Kiss E, Kelly B, Nishihara M, Goshima Y, Corsmeier D, White P, Herman GE, Ohtani-Kaneko R. Human CRMP4 mutation and disrupted Crmp4 expression in mice are associated with ASD characteristics and sexual dimorphism. Sci Rep 2017; 7:16812. [PMID: 29196732 PMCID: PMC5711804 DOI: 10.1038/s41598-017-16782-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 11/17/2017] [Indexed: 01/09/2023] Open
Abstract
Autism spectrum disorders (ASD) are more common among boys than girls. The mechanisms responsible for ASD symptoms and their sex differences remain mostly unclear. We previously identified collapsin response mediator protein 4 (CRMP4) as a protein exhibiting sex-different expression during sexual differentiation of the hypothalamic sexually dimorphic nucleus. This study investigated the relationship between the sex-different development of autistic features and CRMP4 deficiency. Whole-exome sequencing detected a de novo variant (S541Y) of CRMP4 in a male ASD patient. The expression of mutated mouse CRMP4 S540Y, which is homologous to human CRMP4 S541Y, in cultured hippocampal neurons derived from Crmp4-knockout (KO) mice had increased dendritic branching, compared to those transfected with wild-type (WT) Crmp4, indicating that this mutation results in altered CRMP4 function in neurons. Crmp4-KO mice showed decreased social interaction and several alterations of sensory responses. Most of these changes were more severe in male Crmp4-KO mice than in females. The mRNA expression levels of some genes related to neurotransmission and cell adhesion were altered in the brain of Crmp4-KO mice, mostly in a gender-dependent manner. These results indicate a functional link between a case-specific, rare variant of one gene, Crmp4, and several characteristics of ASD, including sexual differences.
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Affiliation(s)
- Atsuhiro Tsutiya
- Institute of Life Innovation Studies, Toyo University, 1-1-1 Itakura, Oura, Gunma, 374-0193, Japan
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Kawasaki, Japan
| | - Yui Nakano
- Graduate School of Life Sciences, Toyo University, 1-1-1 Itakura, Oura, Gunma, 374-0193, Japan
| | - Emily Hansen-Kiss
- The Institute for Genomic Medicine, Nationwide Children's Hospital and Department of Pediatrics, The Ohio State University, Columbus, OH, 43205, USA
| | - Benjamin Kelly
- The Institute for Genomic Medicine, Nationwide Children's Hospital and Department of Pediatrics, The Ohio State University, Columbus, OH, 43205, USA
| | - Masugi Nishihara
- Department of Veterinary Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Yoshio Goshima
- Department of Molecular Pharmacology and Neurobiology, Yokohama City University Graduate School of Medicine, 3-9 Fuku-ura, Kanazawa Ward, Yokohama, 236-0004, Japan
| | - Don Corsmeier
- The Institute for Genomic Medicine, Nationwide Children's Hospital and Department of Pediatrics, The Ohio State University, Columbus, OH, 43205, USA
| | - Peter White
- The Institute for Genomic Medicine, Nationwide Children's Hospital and Department of Pediatrics, The Ohio State University, Columbus, OH, 43205, USA
| | - Gail E Herman
- The Institute for Genomic Medicine, Nationwide Children's Hospital and Department of Pediatrics, The Ohio State University, Columbus, OH, 43205, USA
| | - Ritsuko Ohtani-Kaneko
- Institute of Life Innovation Studies, Toyo University, 1-1-1 Itakura, Oura, Gunma, 374-0193, Japan.
- Graduate School of Life Sciences, Toyo University, 1-1-1 Itakura, Oura, Gunma, 374-0193, Japan.
- Research Center for Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama, 350-8585, Japan.
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21
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Sun J, Tian L, Cui R, Ruan H, Li X. Muscarinic acetylcholine receptor but not nicotinic acetylcholine receptor plays a role in morphine-induced behavioral sensitization in rats. Pharmacol Biochem Behav 2017; 160:39-46. [DOI: 10.1016/j.pbb.2017.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 07/19/2017] [Accepted: 08/10/2017] [Indexed: 12/11/2022]
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22
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Janickova H, Prado VF, Prado MAM, El Mestikawy S, Bernard V. Vesicular acetylcholine transporter (VAChT) over-expression induces major modifications of striatal cholinergic interneuron morphology and function. J Neurochem 2017. [DOI: 10.1111/jnc.14105] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Helena Janickova
- Department of Physiology and Pharmacology and Department of Anatomy & Cell Biology; Robarts Research Institute; Molecular Medicine Laboratories; The University of Western Ontario; London Ontario Canada
| | - Vania F. Prado
- Department of Physiology and Pharmacology and Department of Anatomy & Cell Biology; Robarts Research Institute; Molecular Medicine Laboratories; The University of Western Ontario; London Ontario Canada
| | - Marco A. M. Prado
- Department of Physiology and Pharmacology and Department of Anatomy & Cell Biology; Robarts Research Institute; Molecular Medicine Laboratories; The University of Western Ontario; London Ontario Canada
| | - Salah El Mestikawy
- Sorbonne Universités; Université Pierre et Marie Curie UM 119 - CNRS UMR 8246 - INSERM U1130; Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS); Paris France
- Department of Psychiatry; Douglas Mental Health University Institute; McGill University; Montreal Canada
| | - Véronique Bernard
- Sorbonne Universités; Université Pierre et Marie Curie UM 119 - CNRS UMR 8246 - INSERM U1130; Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS); Paris France
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23
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Khan KM, Collier AD, Meshalkina DA, Kysil EV, Khatsko SL, Kolesnikova T, Morzherin YY, Warnick JE, Kalueff AV, Echevarria DJ. Zebrafish models in neuropsychopharmacology and CNS drug discovery. Br J Pharmacol 2017; 174:1925-1944. [PMID: 28217866 PMCID: PMC5466539 DOI: 10.1111/bph.13754] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/11/2017] [Accepted: 02/14/2017] [Indexed: 12/12/2022] Open
Abstract
Despite the high prevalence of neuropsychiatric disorders, their aetiology and molecular mechanisms remain poorly understood. The zebrafish (Danio rerio) is increasingly utilized as a powerful animal model in neuropharmacology research and in vivo drug screening. Collectively, this makes zebrafish a useful tool for drug discovery and the identification of disordered molecular pathways. Here, we discuss zebrafish models of selected human neuropsychiatric disorders and drug-induced phenotypes. As well as covering a broad range of brain disorders (from anxiety and psychoses to neurodegeneration), we also summarize recent developments in zebrafish genetics and small molecule screening, which markedly enhance the disease modelling and the discovery of novel drug targets.
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Affiliation(s)
- Kanza M Khan
- Department of PsychologyUniversity of Southern MississippiHattiesburgMSUSA
| | - Adam D Collier
- Department of PsychologyUniversity of Southern MississippiHattiesburgMSUSA
- The International Zebrafish Neuroscience Research Consortium (ZNRC)SlidellLAUSA
| | - Darya A Meshalkina
- The International Zebrafish Neuroscience Research Consortium (ZNRC)SlidellLAUSA
- Institute of Translational BiomedicineSt. Petersburg State UniversitySt. PetersburgRussia
| | - Elana V Kysil
- Institute of Translational BiomedicineSt. Petersburg State UniversitySt. PetersburgRussia
| | | | | | | | - Jason E Warnick
- The International Zebrafish Neuroscience Research Consortium (ZNRC)SlidellLAUSA
- Department of Behavioral SciencesArkansas Tech UniversityRussellvilleARUSA
| | - Allan V Kalueff
- The International Zebrafish Neuroscience Research Consortium (ZNRC)SlidellLAUSA
- Institute of Translational BiomedicineSt. Petersburg State UniversitySt. PetersburgRussia
- Ural Federal UniversityEkaterinburgRussia
- Research Institute of Marine Drugs and Nutrition, College of Food Science and TechnologyGuangdong Ocean UniversityZhanjiangGuangdongChina
| | - David J Echevarria
- Department of PsychologyUniversity of Southern MississippiHattiesburgMSUSA
- The International Zebrafish Neuroscience Research Consortium (ZNRC)SlidellLAUSA
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24
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Accumbal Cholinergic Interneurons Differentially Influence Motivation Related to Satiety Signaling. eNeuro 2017; 4:eN-NWR-0328-16. [PMID: 28497110 PMCID: PMC5422920 DOI: 10.1523/eneuro.0328-16.2017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 03/15/2017] [Accepted: 03/30/2017] [Indexed: 11/30/2022] Open
Abstract
Satiety, rather than all or none, can instead be viewed as a cumulative decrease in the drive to eat that develops over the course of a meal. The nucleus accumbens (NAc) is known to play a critical role in this type of value reappraisal, but the underlying circuits that influence such processes are unclear. Although NAc cholinergic interneurons (CINs) comprise only a small proportion of NAc neurons, their local impact on reward-based processes provides a candidate cell population for investigating the neural underpinnings of satiety. The present research therefore aimed to determine the role of NAc-CINs in motivation for food reinforcers in relation to satiety signaling. Through bidirectional control of CIN activity in mice, we show that when motivated by food restriction, increasing CIN activity led to a reduction in palatable food consumption while reducing CIN excitability enhanced food intake. These activity-dependent changes developed only late in the session and were unlikely to be driven by the innate reinforcer strength, suggesting that CIN modulation was instead impacting the cumulative change in motivation underlying satiety signaling. We propose that on a circuit level, an overall increase in inhibitory tone onto NAc output neurons played a role in the behavioral results, as activating NAc-CINs led to an inhibition of medium spiny neurons that was dependent on nicotinic receptor activation. Our results reveal an important role for NAc-CINs in controlling motivation for food intake and additionally provide a circuit-level framework for investigating the endogenous cholinergic circuits that signal satiety.
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25
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Joseph L, Thomsen M. Effects of muscarinic receptor antagonists on cocaine discrimination in wild-type mice and in muscarinic receptor M 1, M 2, and M 4 receptor knockout mice. Behav Brain Res 2017; 329:75-83. [PMID: 28442355 DOI: 10.1016/j.bbr.2017.04.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/06/2017] [Accepted: 04/11/2017] [Indexed: 01/14/2023]
Abstract
Muscarinic M1/M4 receptor stimulation can reduce abuse-related effects of cocaine and may represent avenues for treating cocaine addiction. Muscarinic antagonists can mimic and enhance effects of cocaine, including discriminative stimulus (SD) effects, but the receptor subtypes mediating those effects are not known. A better understanding of the complex cocaine/muscarinic interactions is needed to evaluate and develop potential muscarinic-based medications. Here, knockout mice lacking M1, M2, or M4 receptors (M1-/-, M2-/-, M4-/-), as well as control wild-type mice and outbred Swiss-Webster mice, were trained to discriminate 10mg/kg cocaine from saline. Muscarinic receptor antagonists with no subtype selectivity (scopolamine), or preferential affinity at the M1, M2, or M4 subtype (telenzepine, trihexyphenidyl; methoctramine, AQ-RA 741; tropicamide) were tested alone and in combination with cocaine. In intact animals, antagonists with high affinity at M1/M4 receptors partially substituted for cocaine and increased the SD effect of cocaine, while M2-preferring antagonists did not substitute, and reduced the SD effect of cocaine. The cocaine-like effects of scopolamine were absent in M1-/- mice. The cocaine SD attenuating effects of methoctramine were absent in M2-/- mice and almost absent in M1-/- mice. The findings indicate that the cocaine-like SD effects of muscarinic antagonists are primarily mediated through M1 receptors, with a minor contribution of M4 receptors. The data also support our previous findings that stimulation of M1 receptors and M4 receptors can each attenuate the SD effect of cocaine, and show that this can also be achieved by blocking M2 autoreceptors, likely via increased acetylcholine release.
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Affiliation(s)
- Lauren Joseph
- Alcohol and Drug Abuse Research Center, McLean Hospital/Harvard Medical School, Belmont, MA, USA
| | - Morgane Thomsen
- Alcohol and Drug Abuse Research Center, McLean Hospital/Harvard Medical School, Belmont, MA, USA; Laboratory of Neuropsychiatry, Psychiatric Centre Copenhagen and University of Copenhagen, Copenhagen, Denmark.
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26
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Rahmati B, Beik A. Prevention of morphine dependence and tolerance by Nepeta menthoides was accompanied by attenuation of Nitric oxide overproduction in male mice. JOURNAL OF ETHNOPHARMACOLOGY 2017; 199:39-51. [PMID: 28130112 DOI: 10.1016/j.jep.2017.01.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 12/04/2016] [Accepted: 01/18/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Repeated administration of morphine for chronic pain leads to dependence and tolerance that limits clinical usage. Nepeta menthoides is commonly known as Iranian Ustukhuddoos and are administered in traditional medicine for gastrodynia, bone pain, blood depurative and restlessness. AIMS OF STUDY To investigate the effects of Nepeta menthoides on expression and acquisition of morphine dependence and tolerance in mice with regard to oxidative stress. MATERIALS AND METHODS Morphine dependence in mice was developed by administration of gradually increasing doses of morphine twice daily for 7 consecutive days. In experimental groups, administration of Nepeta menthoides (200 and 400mg/kg), methadone and their combination were performed 60min prior to each morphine injection (for acquisition) or the last injection of morphine on test day (for expression). Morphine tolerance was measured by the tail-immersion test before and after the administration of a single dose of morphine (100mg/kg; i.p.) on the test day (8th day). Morphine dependence was also evaluated by counting the number of jumps after the injection of naloxone (5mg/kg; i.p.). RESULTS Nepeta menthoides, similar to methadone, significantly prevented the development (but not the expression) of morphine dependence, tolerance, and potentiated morphine antinociception and also reduced (23.23±1.15) Nitric oxide (NO) overproduction (35.23±3.36) (in compared with naloxone group (6.3±0.52)). However, single and repeated application of the extract could not change high single-dose morphine analgesia. CONCLUSION It appears that Nepeta menthoides and methadone prevented morphine dependence and tolerance, partly through inhibition of the NO overproduction.
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Affiliation(s)
- Batool Rahmati
- Neurophysiology Research Center, Shahed University, 1417953836 Tehran, Iran; Department of Physiology, School of Medicine, Shahed University, 3319118651 Tehran, Iran.
| | - Ahmad Beik
- Department of Physiology, School of Medicine, Shahed University, 3319118651 Tehran, Iran.
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27
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Sun J, Tian L, Cui R, Li X. Huperzine A inhibits immediate addictive behavior but not behavioral sensitization following repeated morphine administration in rats. Exp Ther Med 2017; 13:1584-1591. [PMID: 28413513 DOI: 10.3892/etm.2017.4097] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 11/18/2016] [Indexed: 11/06/2022] Open
Abstract
Acetylcholinesterase inhibitors are regarded as promising therapeutic agents to treat addiction. The current study aimed to examine the effects of huperzine A, a cholinesterase inhibitor, on behavioral sensitization induced by repeated morphine administration and relapse induced by contextual conditioning. The present study also assessed whether the state-dependency hypothesis may explain the results. Adult rats were divided into four groups (n=8) and intraperitoneally injected with 0.2, 0.3 or 0.4 mg/kg huperzine A or saline (1 ml/kg, control), for 5 days. The effect of repeated huperzine A administration alone on locomotor activity was assessed. For the experiments that analyzed the development of morphine-induced sensitization, 40 rats were divided into five groups (n=8): Saline+Saline, Saline+Morphine, 0.2, 0.3 and 0.4 mg/kg huperzine A+Morphine. Following a withdrawal period of 7 days, all animals were administered saline or morphine, as appropriate. To test the state-dependency hypothesis, the rats in the Saline+Morphine group were injected with saline and morphine, while the other three groups were administered different doses of huperzine A and morphine. To examine the effect of huperzine A on the expression of morphine-induced sensitization, the rats in huperzine A+Morphine groups were injected with appropriate concentrations of huperzine A, and morphine. The current results indicated that the administration of huperzine A alone did not affect locomotor activity, while higher doses of huperzine A inhibited the addictive behavior induced by morphine at the development phase. Additionally, huperzine A administration during the expression phase of morphine sensitization did not inhibit the relapse induced by administration of saline. Furthermore, 0.4 mg/kg huperzine A inhibited the expression of morphine-induced behavioral sensitization. Therefore, the results of the current study do not support the state-dependency hypothesis.
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Affiliation(s)
- Jinling Sun
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing 100048, P.R. China
| | - Lin Tian
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing 100048, P.R. China
| | - Ruisi Cui
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing 100048, P.R. China
| | - Xinwang Li
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing 100048, P.R. China
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Crofton EJ, Nenov MN, Zhang Y, Scala F, Page SA, McCue DL, Li D, Hommel JD, Laezza F, Green TA. Glycogen synthase kinase 3 beta alters anxiety-, depression-, and addiction-related behaviors and neuronal activity in the nucleus accumbens shell. Neuropharmacology 2017; 117:49-60. [PMID: 28126496 DOI: 10.1016/j.neuropharm.2017.01.020] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 01/15/2017] [Accepted: 01/22/2017] [Indexed: 11/24/2022]
Abstract
Psychiatric disorders such as anxiety, depression and addiction are often comorbid brain pathologies thought to share common mechanistic biology. As part of the cortico-limbic circuit, the nucleus accumbens shell (NAcSh) plays a fundamental role in integrating information in the circuit, such that modulation of NAcSh circuitry alters anxiety, depression, and addiction-related behaviors. Intracellular kinase cascades in the NAcSh have proven important mediators of behavior. To investigate glycogen-synthase kinase 3 (GSK3) beta signaling in the NAcSh in vivo we knocked down GSK3beta expression with a novel adeno-associated viral vector (AAV2) and assessed changes in anxiety- and depression-like behavior and cocaine self-administration in GSK3beta knockdown rats. GSK3beta knockdown reduced anxiety-like behavior while increasing depression-like behavior and cocaine self-administration. Correlative electrophysiological recordings in acute brain slices were used to assess the effect of AAV-shGSK3beta on spontaneous firing and intrinsic excitability of tonically active interneurons (TANs), cells required for input and output signal integration in the NAcSh and for processing reward-related behaviors. Loose-patch recordings showed that TANs transduced by AAV-shGSK3beta exhibited reduction in tonic firing and increased spike half width. When assessed by whole-cell patch clamp recordings these changes were mirrored by reduction in action potential firing and accompanied by decreased hyperpolarization-induced depolarizing sag potentials, increased action potential current threshold, and decreased maximum rise time. These results suggest that silencing of GSK3beta in the NAcSh increases depression- and addiction-related behavior, possibly by decreasing intrinsic excitability of TANs. However, this study does not rule out contributions from other neuronal sub-types.
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Affiliation(s)
- Elizabeth J Crofton
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Miroslav N Nenov
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Yafang Zhang
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Federico Scala
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA; Biophysics Graduate Program, Institute of Human Physiology, Universita Cattolica, Rome, Italy
| | - Sean A Page
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - David L McCue
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Dingge Li
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Jonathan D Hommel
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Fernanda Laezza
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Thomas A Green
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA.
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Gawel K, Labuz K, Gibula-Bruzda E, Jenda M, Marszalek-Grabska M, Silberring J, Kotlinska JH. Acquisition and reinstatement of ethanol-induced conditioned place preference in rats: Effects of the cholinesterase inhibitors donepezil and rivastigmine. J Psychopharmacol 2016; 30:676-87. [PMID: 27097732 DOI: 10.1177/0269881116642539] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The present study examined the influence of the cholinesterase inhibitors donepezil (a selective inhibitor of acetylcholinesterase) and rivastigmine (also an inhibitor of butyrylcholinesterase) on the acquisition and reinstatement of ethanol-induced conditioned place preference (CPP) in rats. Before the CPP procedure, animals received a single injection of ethanol (0.5 g/kg, 10% w/v, intraperitoneally [i.p.]) for 15 days. The ethanol-induced CPP (biased method) was developed by four injections of ethanol (0.5 g/kg, 10% w/v, i.p.) every second day. Control rats received saline instead of ethanol. Donepezil (0.5, 1 or 3 mg/kg, i.p.) or rivastigmine (0.03, 0.5 or 1 mg/kg, i.p.) were administered before ethanol during conditioning or before the reinstatement of ethanol-induced CPP. The cholinesterase inhibitors were equally effective in increasing (dose dependently) the acquisition of ethanol-induced CPP. Furthermore, priming injections of both inhibitors reinstated (cross-reinstatement) the ethanol-induced CPP with similar efficacy. These effects of both cholinesterase inhibitors were reversed by mecamylamine (3 mg/kg, i.p.), a nicotinic acetylcholine receptor antagonist, but not by scopolamine (0.5 mg/kg, i.p.), a muscarinic acetylcholine receptor antagonist. Thus, our results show that the cholinergic system is involved in the reinforcing properties of ethanol, and nicotinic acetylcholine receptors play an important role in the relapse to ethanol-seeking behaviour.
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Affiliation(s)
- Kinga Gawel
- Department of Pharmacology and Pharmacodynamics, Medical University, Lublin, Poland
| | | | - Ewa Gibula-Bruzda
- Department of Pharmacology and Pharmacodynamics, Medical University, Lublin, Poland
| | - Malgorzata Jenda
- Department of Pharmacology and Pharmacodynamics, Medical University, Lublin, Poland
| | | | - Jerzy Silberring
- Department of Biochemistry and Neurobiology, AGH University of Science and Technology, Krakow, Poland
| | - Jolanta H Kotlinska
- Department of Pharmacology and Pharmacodynamics, Medical University, Lublin, Poland
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Grasing K. A threshold model for opposing actions of acetylcholine on reward behavior: Molecular mechanisms and implications for treatment of substance abuse disorders. Behav Brain Res 2016; 312:148-62. [PMID: 27316344 DOI: 10.1016/j.bbr.2016.06.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 06/11/2016] [Accepted: 06/13/2016] [Indexed: 12/26/2022]
Abstract
The cholinergic system plays important roles in both learning and addiction. Medications that modify cholinergic tone can have pronounced effects on behaviors reinforced by natural and drug reinforcers. Importantly, enhancing the action of acetylcholine (ACh) in the nucleus accumbens and ventral tegmental area (VTA) dopamine system can either augment or diminish these behaviors. A threshold model is presented that can explain these seemingly contradictory results. Relatively low levels of ACh rise above a lower threshold, facilitating behaviors supported by drugs or natural reinforcers. Further increases in cholinergic tone that rise above a second upper threshold oppose the same behaviors. Accordingly, cholinesterase inhibitors, or agonists for nicotinic or muscarinic receptors, each have the potential to produce biphasic effects on reward behaviors. Pretreatment with either nicotinic or muscarinic antagonists can block drug- or food- reinforced behavior by maintaining cholinergic tone below its lower threshold. Potential threshold mediators include desensitization of nicotinic receptors and biphasic effects of ACh on the firing of medium spiny neurons. Nicotinic receptors with high- and low- affinity appear to play greater roles in reward enhancement and inhibition, respectively. Cholinergic inhibition of natural and drug rewards may serve as mediators of previously described opponent processes. Future studies should evaluate cholinergic agents across a broader range of doses, and include a variety of reinforced behaviors.
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Affiliation(s)
- Kenneth Grasing
- From the Substance Abuse Research Laboratory, 151, Kansas City Veterans Affairs Medical Center, 4801 Linwood Boulevard, Kansas City, MO 64128, United States; From the Division of Clinical Pharmacology, Department of Medicine, University of Kansas School of Medicine, Kansas City, KS 66160, United States.
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Wang F, Jing X, Yang J, Wang H, Xiang R, Han W, Liu X, Wu C. The role of the insular cortex in naloxone-induced conditioned place aversion in morphine-dependent mice. Physiol Res 2016; 65:701-709. [PMID: 26988162 DOI: 10.33549/physiolres.933106] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A negative emotional state resulting from the withdrawal of drug addiction is thought to be an important factor that triggers and exacerbates relapse. Since the insular cortex is a key brain structure involved in the modulation of negative emotions, we investigated whether the integrity of the insular cortex was important for motivational aversion associated with morphine withdrawal as well as whether this kind of negative emotion induced neuroadaptation in the insular cortex. In this present study, a sensitive mouse conditioned place aversion (CPA) model measuring the motivational aversion of morphine withdrawal was first established. Our results showed that bilateral insular cortex lesions by kainic acid completely inhibited the expression of CPA. The expression of FosB/deltaFosB in the insular cortex was significantly increased 24 h after the CPA regime was performed, but the expression of c-Fos in the insular cortex did not changed. These findings indicate that the integrity of the insular cortex is essential to motivational aversion associated with morphine withdrawal, and that this kind of aversion induces neuroadaptation, observed as the increase of FosB/deltaFosB expression, in the insular cortex.
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Affiliation(s)
- Fang Wang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, China. or
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Saeed A, Zaib S, Ashraf S, Iftikhar J, Muddassar M, Zhang KYJ, Iqbal J. Synthesis, cholinesterase inhibition and molecular modelling studies of coumarin linked thiourea derivatives. Bioorg Chem 2015; 63:58-63. [PMID: 26440714 DOI: 10.1016/j.bioorg.2015.09.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 09/14/2015] [Accepted: 09/28/2015] [Indexed: 12/27/2022]
Abstract
Alzheimer's disease is among the most widespread neurodegenerative disorder. Cholinesterases (ChEs) play an indispensable role in the control of cholinergic transmission and thus the acetylcholine level in the brain is enhanced by inhibition of ChEs. Coumarin linked thiourea derivatives were designed, synthesized and evaluated biologically in order to determine their inhibitory activity against acetylcholinesterases (AChE) and butyrylcholinesterases (BChE). The synthesized derivatives of coumarin linked thiourea compounds showed potential inhibitory activity against AChE and BChE. Among all the synthesized compounds, 1-(2-Oxo-2H-chromene-3-carbonyl)-3-(3-chlorophenyl)thiourea (2e) was the most potent inhibitor against AChE with an IC50 value of 0.04±0.01μM, while 1-(2-Oxo-2H-chromene-3-carbonyl)-3-(2-methoxyphenyl)thiourea (2b) showed the most potent inhibitory activity with an IC50 value of 0.06±0.02μM against BChE. Molecular docking simulations were performed using the homology models of both cholinesterases in order to explore the probable binding modes of inhibitors. Results showed that the novel synthesized coumarin linked thiourea derivatives are potential candidates to develop for potent and efficacious acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitors.
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Affiliation(s)
- Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad, Pakistan
| | - Sumera Zaib
- Centre for Advanced Drug Research, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Saba Ashraf
- Department of Chemistry, Quaid-I-Azam University, Islamabad, Pakistan
| | - Javeria Iftikhar
- Centre for Advanced Drug Research, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Muhammad Muddassar
- Structural Bioinformatics Team, Division of Structural and Synthetic Biology, Center for Life Science Technologies, RIKEN, 1-7-22 Suehiro, Yokohama, Kanagawa 230-0045, Japan; Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Islamabad, Pakistan
| | - Kam Y J Zhang
- Structural Bioinformatics Team, Division of Structural and Synthetic Biology, Center for Life Science Technologies, RIKEN, 1-7-22 Suehiro, Yokohama, Kanagawa 230-0045, Japan
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan.
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Donepezil prevents RANK-induced bone loss via inhibition of osteoclast differentiation by downregulating acetylcholinesterase. Heliyon 2015; 1:e00013. [PMID: 27441211 PMCID: PMC4939821 DOI: 10.1016/j.heliyon.2015.e00013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 07/16/2015] [Indexed: 01/14/2023] Open
Abstract
Objective Donepezil, an inhibitor of acetylcholinesterase (AChE) targeting the brain, is a common medication for Alzheimer's disease. Interestingly, a recent clinical study found that administration of this agent is associated with lower risk of hip fracture independently of falling, suggesting its direct effect on bone tissues as well. AChE has been reported to be involved in osteoblast function, but the role of AChE on osteoclastogenesis still remains unclear. We analyzed the effect of AChE and donepezil on osteoclastogenesis in vivo and in vitro. Methods Cell-based assays were conducted using osteoclasts generated in cultures of murine bone marrow macrophages (BMMs) with receptor activator of nuclear factor-kappa B ligand (RANKL). The effect of donepezil was also determined in vivo using a mouse model of RANKL-induced bone loss. Results Recombinant AChE in BMMs cultured with RANKL further promoted RANKL-induced tartrate-resistant acid phosphatase (TRAP)-positive osteoclast differentiation. RANKL also upregulated AChE expression in BMMs. RNA interference-mediated knockdown of AChE significantly inhibited RANKL-induced osteoclast differentiation and suppressed gene expression specific for osteoclasts. AChE upregulated expression of RANK, the receptor of RANKL, in BMMs. Donepezil decreased cathepsin K expression in BMMs and the resorptive function of osteoclasts on dentine slices. Donepezil decreased RANK expression in BMMs, resulting in the inhibition of osteoclast differentiation with downregulation of c-Fos and upregulation of Id2. Moreover, administration of donepezil prevented RANKL-induced bone loss in vivo, which was associated with the inhibition of bone resorption by osteoclasts. Conclusions AChE promotes osteoclast differentiation in vitro. Donepezil inhibits osteoclast function in vitro and prevents bone loss by suppressing bone resorption in vivo, suggesting the possibility that donepezil reduces fracture risk in patients with Alzheimer's disease.
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De La Garza R, Verrico CD, Newton TF, Mahoney JJ, Thompson-Lake DGY. Safety and Preliminary Efficacy of the Acetylcholinesterase Inhibitor Huperzine A as a Treatment for Cocaine Use Disorder. Int J Neuropsychopharmacol 2015; 19:pyv098. [PMID: 26364275 PMCID: PMC4815469 DOI: 10.1093/ijnp/pyv098] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 07/27/2015] [Accepted: 08/24/2015] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Cholinergic transmission is altered by drugs of abuse and contributes to psychostimulant reinforcement. In particular, acetylcholinesterase inhibitors, like huperzine A, may be effective as treatments for cocaine use disorder. METHODS The current report describes results from a double-blind, placebo-controlled study in which participants (n=14-17/group) were randomized to huperzine A (0.4 or 0.8 mg) or placebo. Participants received randomized infusions of cocaine (0 and 40 mg, IV) on days 1 and 9. On day 10, participants received noncontingent, randomized infusions of cocaine (0 and 20mg, IV) before making 5 choices to receive additional infusions. RESULTS Huperzine A was safe and well-tolerated and compared with placebo, treatment with huperzine A did not cause significant changes in any cocaine pharmacokinetic parameters (all P>.05). Time-course and peak effects analyses show that treatment with 0.4 mg of huperzine A significantly attenuated cocaine-induced increases of "Any Drug Effect," "High," "Stimulated," "Willing to Pay," and "Bad Effects" (all P>.05). CONCLUSIONS The current study represents a significant contribution to the addiction field since it serves as the first published report on the safety and potential efficacy of huperzine A as a treatment for cocaine use disorder.
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Affiliation(s)
- Richard De La Garza
- Baylor College of Medicine, Menninger Department of Psychiatry and Behavioral Sciences, Houston, TX.
| | - Christopher D Verrico
- Baylor College of Medicine, Menninger Department of Psychiatry and Behavioral Sciences, Houston, TX
| | - Thomas F Newton
- Baylor College of Medicine, Menninger Department of Psychiatry and Behavioral Sciences, Houston, TX
| | - James J Mahoney
- Baylor College of Medicine, Menninger Department of Psychiatry and Behavioral Sciences, Houston, TX
| | - Daisy G Y Thompson-Lake
- Baylor College of Medicine, Menninger Department of Psychiatry and Behavioral Sciences, Houston, TX
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Strickland AV, Rebelo AP, Zhang F, Price J, Bolon B, Silva JP, Wen R, Züchner S. Characterization of the mitofusin 2 R94W mutation in a knock-in mouse model. J Peripher Nerv Syst 2015; 19:152-64. [PMID: 24862862 DOI: 10.1111/jns5.12066] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 02/25/2014] [Accepted: 03/19/2014] [Indexed: 11/29/2022]
Abstract
Charcot-Marie-Tooth disease (CMT) comprises a group of heterogeneous peripheral axonopathies affecting 1 in 2,500 individuals. As mutations in several genes cause axonal degeneration in CMT type 2, mutations in mitofusin 2 (MFN2) account for approximately 90% of the most severe cases, making it the most common cause of inherited peripheral axonal degeneration. MFN2 is an integral mitochondrial outer membrane protein that plays a major role in mitochondrial fusion and motility; yet the mechanism by which dominant mutations in this protein lead to neurodegeneration is still not fully understood. Furthermore, future pre-clinical drug trials will be in need of validated rodent models. We have generated a Mfn2 knock-in mouse model expressing Mfn2(R94W), which was originally identified in CMT patients. We have performed behavioral, morphological, and biochemical studies to investigate the consequences of this mutation. Homozygous inheritance leads to premature death at P1, as well as mitochondrial dysfunction, including increased mitochondrial fragmentation in mouse embryonic fibroblasts and decreased ATP levels in newborn brains. Mfn2(R94W) heterozygous mice show histopathology and age-dependent open-field test abnormalities, which support a mild peripheral neuropathy. Although behavior does not mimic the severity of the human disease phenotype, this mouse can provide useful tissues for studying molecular pathways associated with MFN2 point mutations.
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Affiliation(s)
- Alleene V Strickland
- Department of Human Genetics, Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
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Enduring effects of tacrine on cocaine-reinforced behavior: Analysis by conditioned-place preference, temporal separation from drug reward, and reinstatement. Pharmacol Res 2015; 97:40-7. [PMID: 25890194 DOI: 10.1016/j.phrs.2015.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 04/07/2015] [Accepted: 04/07/2015] [Indexed: 11/21/2022]
Abstract
Previous work by our laboratory has shown that tacrine can produce long-lasting reductions in cocaine-reinforced behavior, when administered to rats as daily intravenous infusions over four days. Tacrine causes dose-related liver toxicity in different species, and its manufacture for human use was recently discontinued. This study was conducted to further characterize its actions on cocaine reward. Cocaine-experienced animals that had no contact with drug over one week resumed self-administration at levels similar to their initial baseline. When tacrine was administered over four days which were preceded and followed by washout periods to allow elimination of cocaine and tacrine respectively, subsequent cocaine self-administration was attenuated by more than one-half. Tacrine administered at 10 mg/kg-day as a chronic infusion by osmotic pump did not modify cocaine-induced increases in locomotor activity or conditioned-place preference. In rats that exhibited persistent attenuation of cocaine-self-administration after receiving tacrine, cocaine-induced reinstatement was also attenuated. No changes in plasma measures of renal or hepatic function were observed in rats receiving tacrine. In conclusion, pretreatment with tacrine can decrease cocaine-motivated behavior measured by self-administration or reinstatement, but not conditioned-place preference. Reductions in cocaine self-administration following pretreatment with tacrine do not require direct interaction with cocaine and are not secondary to either liver or kidney toxicity.
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Gonzales KK, Smith Y. Cholinergic interneurons in the dorsal and ventral striatum: anatomical and functional considerations in normal and diseased conditions. Ann N Y Acad Sci 2015; 1349:1-45. [PMID: 25876458 DOI: 10.1111/nyas.12762] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Striatal cholinergic interneurons (ChIs) are central for the processing and reinforcement of reward-related behaviors that are negatively affected in states of altered dopamine transmission, such as in Parkinson's disease or drug addiction. Nevertheless, the development of therapeutic interventions directed at ChIs has been hampered by our limited knowledge of the diverse anatomical and functional characteristics of these neurons in the dorsal and ventral striatum, combined with the lack of pharmacological tools to modulate specific cholinergic receptor subtypes. This review highlights some of the key morphological, synaptic, and functional differences between ChIs of different striatal regions and across species. It also provides an overview of our current knowledge of the cellular localization and function of cholinergic receptor subtypes. The future use of high-resolution anatomical and functional tools to study the synaptic microcircuitry of brain networks, along with the development of specific cholinergic receptor drugs, should help further elucidate the role of striatal ChIs and permit efficient targeting of cholinergic systems in various brain disorders, including Parkinson's disease and addiction.
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Affiliation(s)
- Kalynda K Gonzales
- Yerkes National Primate Research Center, Department of Neurology and Udall Center of Excellence for Parkinson's Disease Research, Emory University, Atlanta, Georgia.,Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Yoland Smith
- Yerkes National Primate Research Center, Department of Neurology and Udall Center of Excellence for Parkinson's Disease Research, Emory University, Atlanta, Georgia
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Bajic D, Soiza-Reilly M, Spalding AL, Berde CB, Commons KG. Endogenous cholinergic neurotransmission contributes to behavioral sensitization to morphine. PLoS One 2015; 10:e0117601. [PMID: 25647082 PMCID: PMC4315441 DOI: 10.1371/journal.pone.0117601] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 12/29/2014] [Indexed: 12/15/2022] Open
Abstract
Neuroplasticity in the mesolimbic dopaminergic system is critical for behavioral adaptations associated with opioid reward and addiction. These processes may be influenced by cholinergic transmission arising from the laterodorsal tegmental nucleus (LDTg), a main source of acetylcholine to mesolimbic dopaminergic neurons. To examine this possibility we asked if chronic systemic morphine administration affects expression of genes in ventral and ventrolateral periaqueductal gray at the level of the LDTg using rtPCR. Specifically, we examined gene expression changes in the area of interest using Neurotransmitters and Receptors PCR array between chronic morphine and saline control groups. Analysis suggested that chronic morphine administration led to changes in expression of genes associated, in part, with cholinergic neurotransmission. Furthermore, using a quantitative immunofluorescent technique, we found that chronic morphine treatment produced a significant increase in immunolabeling of the cholinergic marker (vesicular acetylcholine transporter) in neurons of the LDTg. Finally, systemic administration of the nonselective and noncompetitive neuronal nicotinic antagonist mecamylamine (0.5 or 2 mg/kg) dose-dependently blocked the expression, and to a lesser extent the development, of locomotor sensitization. The same treatment had no effect on acute morphine antinociception, antinociceptive tolerance or dependence to chronic morphine. Taken together, the results suggest that endogenous nicotinic cholinergic neurotransmission selectively contributes to behavioral sensitization to morphine and this process may, in part, involve cholinergic neurons within the LDTg.
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Affiliation(s)
- Dusica Bajic
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA, 02115, United States of America
- Department of Anaesthesia, Harvard Medical School, 25 Shattuck St., Boston, MA, 02115, United States of America
| | - Mariano Soiza-Reilly
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA, 02115, United States of America
- Department of Anaesthesia, Harvard Medical School, 25 Shattuck St., Boston, MA, 02115, United States of America
| | - Allegra L. Spalding
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA, 02115, United States of America
| | - Charles B. Berde
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA, 02115, United States of America
- Department of Anaesthesia, Harvard Medical School, 25 Shattuck St., Boston, MA, 02115, United States of America
| | - Kathryn G. Commons
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA, 02115, United States of America
- Department of Anaesthesia, Harvard Medical School, 25 Shattuck St., Boston, MA, 02115, United States of America
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Miyamoto Y, Iida A, Sato K, Muramatsu SI, Nitta A. Knockdown of dopamine D₂ receptors in the nucleus accumbens core suppresses methamphetamine-induced behaviors and signal transduction in mice. Int J Neuropsychopharmacol 2015; 18:pyu038. [PMID: 25522385 PMCID: PMC4360230 DOI: 10.1093/ijnp/pyu038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Addictive drugs lead to reinforcing properties by increasing dopamine in the nucleus accumbens, which is composed of a core and shell regions. Neurons in the nucleus accumbens are divided into 2 subtypes based on the differential gene expression of the dopamine D₁ receptors and D₂ receptors. METHODS In the present study, we investigated the role of D₂ receptors in the nucleus accumbens core in behaviors and signal transduction induced by psychostimulant methamphetamine in mice that were microinjected with adeno-associated virus vectors containing a microRNA (miRNA) sequence for D₂ receptor (adeno-associated virus-miD2r vectors) in the nucleus accumbens core. The adeno-associated virus vectors containing a miRNA sequence for D₂ receptor-treated mice (miD₂r mice) were assessed at a reduction in D₂ receptor, but at no change in dopamine D₁ receptor, in the nucleus accumbens core compared with the adeno-associated virus-Mock vectors-treated mice (Mock mice). RESULTS miD₂r mice exhibited a reduction in hyperlocomotion that was induced by a single treatment with methamphetamine. The development of locomotor sensitization induced by repeated treatment with methamphetamine exhibited less extension in miD₂r mice. In a place conditioning paradigm, the preferred effects of methamphetamine were significantly weaker in miD₂r mice than in Mock mice. Furthermore, the single treatment with methamphetamine-induced phosphorylation of extracellular signal regulated kinase and cyclic adenosine monophosphate response element-binding protein in the nucleus accumbens core of miD₂r mice was decreased compared with that in Mock mice. Repeated treatment with methamphetamine-induced delta FBJ murine osteosarcoma viral oncogene homolog B accumulation in the nucleus accumbens core of miD₂r mice was also attenuated. CONCLUSIONS These findings suggest that a D₂ receptor-mediated neuronal pathway from the nucleus accumbens core plays an inhibitory role in the development of reinforcing properties.
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Affiliation(s)
| | | | | | | | - Atsumi Nitta
- Department of Pharmaceutical Therapy and Neuropharmacology, Faculty of Pharmaceutical Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan (Drs Miyamoto, Sato, and Nitta); Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi, Japan (Drs Iida and Muramatsu).
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Arango-Lievano M, Schwarz JT, Vernov M, Wilkinson MB, Bradbury K, Feliz A, Marongiu R, Gelfand Y, Warner-Schmidt J, Nestler EJ, Greengard P, Russo SJ, Kaplitt MG. Cell-type specific expression of p11 controls cocaine reward. Biol Psychiatry 2014; 76:794-801. [PMID: 24725970 PMCID: PMC4145045 DOI: 10.1016/j.biopsych.2014.02.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 01/25/2014] [Accepted: 02/14/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND The high rate of comorbidity between depression and cocaine addiction suggests shared molecular mechanisms and anatomical pathways. Limbic structures, such as the nucleus accumbens (NAc), play a crucial role in both disorders, yet how different cell types within these structures contribute to the pathogenesis remains elusive. Downregulation of p11 (S100A10), specifically in the NAc, elicits depressive-like behaviors in mice, but its role in drug addiction is unknown. METHODS We combined mouse genetics and viral strategies to determine how the titration of p11 levels within the entire NAc affects the rewarding actions of cocaine on behavior (six to eight mice per group) and molecular correlates (three experiments, five to eight mice per group). Finally, the manipulation of p11 expression in distinct NAc dopaminoceptive neuronal subsets distinguished cell-type specific effects of p11 on cocaine reward (five to eight mice per group). RESULTS We demonstrated that p11 knockout mice have enhanced cocaine conditioned place preference, which is reproduced by the focal downregulation of p11 in the NAc of wild-type mice. In wild-type mice, cocaine reduced p11 expression in the NAc, while p11 overexpression exclusively in the NAc reduced cocaine conditioned place preference. Finally, we identified dopamine receptor-1 expressing medium spiny neurons as key mediators of the effects of p11 on cocaine reward. CONCLUSIONS Our data provide evidence that disruption of p11 homeostasis in the NAc, particularly in dopamine receptor-1 expressing medium spiny neurons, may underlie pathophysiological mechanisms of cocaine rewarding action. Treatments to counter maladaptation of p11 levels may provide novel therapeutic opportunities for cocaine addiction.
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Affiliation(s)
- Margarita Arango-Lievano
- Laboratory of Molecular Neurosurgery, Department of Neurological
Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Justin T. Schwarz
- Laboratory of Molecular Neurosurgery, Department of Neurological
Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Mary Vernov
- Laboratory of Molecular Neurosurgery, Department of Neurological
Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Matthew B. Wilkinson
- Fishberg Department of Neuroscience, Psychiatry, Friedman Brain
Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Kathryn Bradbury
- Fishberg Department of Neuroscience, Psychiatry, Friedman Brain
Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Akira Feliz
- Laboratory of Molecular Neurosurgery, Department of Neurological
Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Roberta Marongiu
- Laboratory of Molecular Neurosurgery, Department of Neurological
Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Yaroslav Gelfand
- Laboratory of Molecular Neurosurgery, Department of Neurological
Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Jennifer Warner-Schmidt
- Laboratory of Molecular and Cellular Neuroscience, Rockefeller
University, New York, NY 10021
| | - Eric J. Nestler
- Fishberg Department of Neuroscience, Psychiatry, Friedman Brain
Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029,Pharmacology, Friedman Brain Institute, Icahn School of Medicine
at Mount Sinai, New York, NY 10029
| | - Paul Greengard
- Laboratory of Molecular and Cellular Neuroscience, Rockefeller
University, New York, NY 10021
| | - Scott J. Russo
- Fishberg Department of Neuroscience, Psychiatry, Friedman Brain
Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Michael G. Kaplitt
- Laboratory of Molecular Neurosurgery, Department of Neurological
Surgery, Weill Cornell Medical College, New York, NY 10065, USA
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Potts GF, Bloom E, Evans DE, Drobes DJ. Neural reward and punishment sensitivity in cigarette smokers. Drug Alcohol Depend 2014; 144:245-53. [PMID: 25292454 PMCID: PMC4282774 DOI: 10.1016/j.drugalcdep.2014.09.773] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 09/15/2014] [Accepted: 09/16/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND Nicotine addiction remains a major public health problem but the neural substrates of addictive behavior remain unknown. One characteristic of smoking behavior is impulsive choice, selecting the immediate reward of smoking despite the potential long-term negative consequences. This suggests that drug users, including cigarette smokers, may be more sensitive to rewards and less sensitive to punishment. METHODS We used event-related potentials (ERPs) to test the hypothesis that smokers are more responsive to reward signals and less responsive to punishment, potentially predisposing them to risky behavior. We conducted two experiments, one using a reward prediction design to elicit a Medial Frontal Negativity (MFN) and one using a reward- and punishment-motivated flanker task to elicit an Error Related Negativity (ERN), ERP components thought to index activity in the cortical projection of the dopaminergic reward system. RESULTS AND CONCLUSIONS The smokers had a greater MFN response to unpredicted rewards, and non-smokers, but not smokers, had a larger ERN on punishment motivated trials indicating that smokers are more reward sensitive and less punishment sensitive than nonsmokers, overestimating the appetitive value and underestimating aversive outcomes of stimuli and actions.
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Affiliation(s)
| | - Erika Bloom
- University of South Florida, Department of Psychology,Moffitt Cancer Center, Tobacco Research and Intervention Program,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University
| | - David E. Evans
- Moffitt Cancer Center, Tobacco Research and Intervention Program,University of South Florida, Department of Oncologic Sciences
| | - David J. Drobes
- University of South Florida, Department of Psychology,Moffitt Cancer Center, Tobacco Research and Intervention Program,University of South Florida, Department of Oncologic Sciences
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Effects of biperiden on the treatment of cocaine/crack addiction: a randomised, double-blind, placebo-controlled trial. Eur Neuropsychopharmacol 2014; 24:1196-202. [PMID: 24974353 DOI: 10.1016/j.euroneuro.2014.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 05/23/2014] [Accepted: 06/02/2014] [Indexed: 11/24/2022]
Abstract
Cocaine use affects approximately 13.4 million people, or 0.3% of the world's population between 15 and 64 years of age. Several authors have described drug addiction as a disease of the brain reward system. Given that the cholinergic system impacts reward mechanisms and drug self-administration, acetylcholine (ACh) might play an important role in the cocaine addiction process. We evaluated the efficacy of biperiden (a cholinergic antagonist) in reducing craving and the amount used, and in increasing compliance with treatment for cocaine/crack addiction. It was a study double-blind, randomised, placebo-controlled, 8-week trial of 111 cocaine or crack addicted male patients between 18 and 50 years old. Two groups were compared: placebo (n=55) or biperiden (n=56) combined with weekly sessions of brief group cognitive-behavioural therapy. The efficacy of treatment was evaluated according to the patients' compliance and several instruments: the Minnesota Cocaine Craving Scale, the Beck Depression and Anxiety Scales and a questionnaire assessing the amount of drug used. All of the patients attended weekly sessions for two months. We analysed the data considering the patients' intention to treat based on our last observation. Of the 56 patients in the biperiden group, 24 completed the treatment (42.8%) compared with only 11 patients in the placebo group (20%), which was a significant difference (p=0.009). Compliance with treatment was 118% higher in the biperiden group, which was also the group that presented a statistically significant reduction in the amount of cocaine/crack use (p<0.001). There was statistically significant difference between the craving score in the biperiden group. Pharmacological blockade of the cholinergic system with biperiden is a promising alternative to treat cocaine/crack addiction, helping patients to reduce the amount used and improving compliance with psychotherapy treatment.
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Kimmey BA, Rupprecht LE, Hayes MR, Schmidt HD. Donepezil, an acetylcholinesterase inhibitor, attenuates nicotine self-administration and reinstatement of nicotine seeking in rats. Addict Biol 2014; 19:539-51. [PMID: 23231479 DOI: 10.1111/adb.12014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nicotine craving and cognitive impairments represent core symptoms of nicotine withdrawal and predict relapse in abstinent smokers. Current smoking cessation pharmacotherapies have limited efficacy in preventing relapse and maintaining abstinence during withdrawal. Donepezil is an acetylcholinesterase inhibitor that has been shown previously to improve cognition in healthy non-treatment-seeking smokers. However, there are no studies examining the effects of donepezil on nicotine self-administration and/or the reinstatement of nicotine-seeking behavior in rodents. The present experiments were designed to determine the effects of acute donepezil administration on nicotine taking and the reinstatement of nicotine-seeking behavior, an animal model of relapse in abstinent human smokers. Moreover, the effects of acute donepezil administration on sucrose self-administration and sucrose seeking were also investigated in order to determine whether donepezil's effects generalized to other reinforced behaviors. Acute donepezil administration (1.0 or 3.0 mg/kg, i.p.) attenuated nicotine, but not sucrose self-administration maintained on a fixed-ratio 5 schedule of reinforcement. Donepezil administration also dose-dependently attenuated the reinstatement of both nicotine- and sucrose-seeking behaviors. Commonly reported adverse effects of donepezil treatment in humans are nausea and vomiting. However, at doses required to attenuate nicotine self-administration in rodents, no effects of donepezil on nausea/malaise as measured by pica were observed. Collectively, these results indicate that increased extracellular acetylcholine levels are sufficient to attenuate nicotine taking and seeking in rats and that these effects are not due to adverse malaise symptoms such as nausea.
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Affiliation(s)
- Blake A. Kimmey
- Department of Psychiatry; Perelman School of Medicine; University of Pennsylvania; Philadelphia PA USA
| | - Laura E. Rupprecht
- Department of Psychiatry; Perelman School of Medicine; University of Pennsylvania; Philadelphia PA USA
| | - Matthew R. Hayes
- Department of Psychiatry; Perelman School of Medicine; University of Pennsylvania; Philadelphia PA USA
| | - Heath D. Schmidt
- Department of Psychiatry; Perelman School of Medicine; University of Pennsylvania; Philadelphia PA USA
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Gawel K, Labuz K, Jenda M, Silberring J, Kotlinska JH. Influence of cholinesterase inhibitors, donepezil and rivastigmine on the acquisition, expression, and reinstatement of morphine-induced conditioned place preference in rats. Behav Brain Res 2014; 268:169-76. [DOI: 10.1016/j.bbr.2014.04.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/08/2014] [Accepted: 04/11/2014] [Indexed: 12/17/2022]
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Bozkurt M, Karabulut V, Evren C, Seker M, Kan H. Intravenous Abuse of Tropicamide in Opioid Use Disorder: Presentation of 2 Cases. Subst Abus 2014; 36:170-3. [PMID: 24892477 DOI: 10.1080/08897077.2014.924465] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Tropicamide is an antimuscarinic ophthalmic solution used to produce short-acting mydriasis and cycloplegia. Topical abuse of ophthalmic solutions has been reported, but intravenous (IV) abuse of tropicamide seems to be a new phenomenon. CASES The authors present 2 patients with concomitant IV tropicamide abuse and opioid use disorder. Patients were hospitalized and started on buprenorphine/naloxone treatment for opioid withdrawal. Patients' reports about tropicamide effects are remarkable, as they claimed that tropicamide increased the efficacy of heroin while decreasing and delaying the withdrawal symptoms. DISCUSSION Although anticholinergics have been known to be abused for their euphoric effects, these cases' motivation to use tropicamide seemed to extend beyond its euphoric effect and was also based on its interaction with heroin. It is feared that tropicamide abuse may become more frequent. Health professionals should be aware of this trend so that symptoms of misuse and intoxication can be recognized, and ophthalmologists should consider the abuse potential of anticholinergic eye drops when prescribing them.
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Affiliation(s)
- Muge Bozkurt
- a Research, Treatment and Training Center for Alcohol and Substance Dependence (AMATEM), Bakirkoy Training and Research Hospital for Psychiatry, Neurology and Neurosurgery , Istanbul , Turkey
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Pereira PA, Neves J, Vilela M, Sousa S, Cruz C, Madeira MD. Chronic alcohol consumption leads to neurochemical changes in the nucleus accumbens that are not fully reversed by withdrawal. Neurotoxicol Teratol 2014; 44:53-61. [PMID: 24893293 DOI: 10.1016/j.ntt.2014.05.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 03/15/2014] [Accepted: 05/24/2014] [Indexed: 01/21/2023]
Abstract
Neuropeptide Y (NPY)- and acetylcholine-containing interneurons of the nucleus accumbens (NAc) seem to play a major role in the rewarding effects of alcohol. This study investigated the relationship between chronic alcohol consumption and subsequent withdrawal and the expression of NPY and acetylcholine in the NAc, and the possible involvement of nerve growth factor (NGF) in mediating the effects of ethanol. Rats ingesting an aqueous ethanol solution over 6months and rats subsequently deprived from ethanol during 2months were used to estimate the total number and the somatic volume of NPY and cholinergic interneurons, and the numerical density of cholinergic varicosities in the NAc. The tissue content of choline acetyltransferase (ChAT) and catecholamines were also determined. The number of NPY interneurons increased during alcohol ingestion and returned to control values after withdrawal. Conversely, the number and the size of cholinergic interneurons, and the amount of ChAT were unchanged in ethanol-treated and withdrawn rats, but the density of cholinergic varicosities was reduced by 50% during alcohol consumption and by 64% after withdrawal. The concentrations of dopamine and norepinephrine were unchanged both during alcohol consumption and after withdrawal. The administration of NGF to withdrawn rats significantly increased the number of NPY-immunoreactive neurons, the size of cholinergic neurons and the density of cholinergic varicosities. Present data show that chronic alcohol consumption leads to long-lasting neuroadaptive changes of the cholinergic innervation of the NAc and suggest that the cholinergic system is a potential target for the development of therapeutic strategies in alcoholism and abstinence.
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Affiliation(s)
- Pedro A Pereira
- Department of Anatomy, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal.
| | - João Neves
- Department of Anatomy, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal.
| | - Manuel Vilela
- Department of Anatomy, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal.
| | - Sérgio Sousa
- Department of Anatomy, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal.
| | - Catarina Cruz
- Department of Anatomy, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal.
| | - M Dulce Madeira
- Department of Anatomy, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal.
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Nakanishi S, Hikida T, Yawata S. Distinct dopaminergic control of the direct and indirect pathways in reward-based and avoidance learning behaviors. Neuroscience 2014; 282:49-59. [PMID: 24769227 DOI: 10.1016/j.neuroscience.2014.04.026] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 04/01/2014] [Accepted: 04/16/2014] [Indexed: 01/13/2023]
Abstract
The nucleus accumbens (NAc) plays a pivotal role in reward and aversive learning and learning flexibility. Outputs of the NAc are transmitted through two parallel routes termed the direct and indirect pathways and controlled by the dopamine (DA) neurotransmitter. To explore how reward-based and avoidance learning is controlled in the NAc of the mouse, we developed the reversible neurotransmission-blocking (RNB) technique, in which transmission of each pathway could be selectively and reversibly blocked by the pathway-specific expression of transmission-blocking tetanus toxin and the asymmetric RNB technique, in which one side of the NAc was blocked by the RNB technique and the other intact side was pharmacologically manipulated by a transmitter agonist or antagonist. Our studies demonstrated that the activation of D1 receptors in the direct pathway and the inactivation of D2 receptors in the indirect pathway are key determinants that distinctly control reward-based and avoidance learning, respectively. The D2 receptor inactivation is also critical for flexibility of reward learning. Furthermore, reward and aversive learning is regulated by a set of common downstream receptors and signaling cascades, all of which are involved in the induction of long-term potentiation at cortico-accumbens synapses of the two pathways. In this article, we review our studies that specify the regulatory mechanisms of each pathway in learning behavior and propose a mechanistic model to explain how dynamic DA modulation promotes selection of actions that achieve reward-seeking outcomes and avoid aversive ones. The biological significance of the network organization consisting of two parallel transmission pathways is also discussed from the point of effective and prompt selection of neural outcomes in the neural network.
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Affiliation(s)
- S Nakanishi
- Department of Systems Biology, Osaka Bioscience Institute, 6-2-4 Furuedai, Suita, Osaka 565-0874, Japan.
| | - T Hikida
- Medical Innovation Center, Kyoto University Graduate School of Medicine, 53, Shogoin Kawahara-chou, Sakyo-ku, Kyoto 606-8507, Japan
| | - S Yawata
- Department of Systems Biology, Osaka Bioscience Institute, 6-2-4 Furuedai, Suita, Osaka 565-0874, Japan
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JIANG X, ZHANG JJ, WANG MY, SUI N. Differential Muscarinic Modulation of Synaptic Transmission in Dorsal and Ventral Regions of the Rat Nucleus Accumbens Core. Physiol Res 2014; 63:135-42. [DOI: 10.33549/physiolres.932518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The nucleus accumbens (NAc) core is critical in the control of motivated behaviors. The muscarinic acetylcholine receptors (mAChRs) modulating the excitatory inputs into the NAc core have been reported to impact such behaviors. Recent studies suggest that ventral and dorsal regions of the NAc core seem to be innervated by distinct populations of glutamatergic projection neurons. To further examine mAChRs modulation of these glutamatergic inputs to the NAc core, we employed intracellular recordings in rat NAc coronal slice preparation to characterize: 1) the effects of muscarine, an mAChRs agonist, on membrane properties of the NAc core neurons; 2) depolarizing synaptic potentials (DPSP) elicited by ventral and dorsal focal electrical stimuli; and 3) paired-pulse response with paired-pulse stimulation. Here we report that the paired-pulse ratio (PPR) elicited by dorsal stimuli was greater than that elicited by ventral stimuli. Bath application of muscarine (1-30 μM) decreased both ventral and dorsal DPSP in a concentration-dependent manner, with no effect on electrophysiological properties of NAc core neurons. Muscarine at 30 μM also elicited larger depression of dorsal DPSP than ventral DPSP. Moreover, muscarine increased the PPR of both dorsal and ventral DPSP. These data indicate that the glutamatergic afferent fibers traversing the dorsal and ventral NAc are separate, and that differential decrease of distinct afferent excitatory neurotransmission onto NAc core neurons may be mediated by presynaptic mechanisms.
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Affiliation(s)
| | | | - M. Y. WANG
- Cell Electrophysiology Laboratory, Wannan Medical College, Wuhu, Anhui, China
| | - N. SUI
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
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Bye A. Experiments with cocaine and heroin addicts—are they predictive? Curr Opin Pharmacol 2014; 14:74-80. [DOI: 10.1016/j.coph.2013.11.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 11/27/2013] [Indexed: 01/11/2023]
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Thomsen M, Fulton BS, Caine SB. Acute and chronic effects of the M1/M4-preferring muscarinic agonist xanomeline on cocaine vs. food choice in rats. Psychopharmacology (Berl) 2014; 231:469-79. [PMID: 23995301 PMCID: PMC3947149 DOI: 10.1007/s00213-013-3256-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 08/15/2013] [Indexed: 10/26/2022]
Abstract
RATIONALE We previously showed that the M1/M4-preferring muscarinic agonist xanomeline can acutely attenuate or eliminate cocaine self-administration in mice. OBJECTIVE Medications used to treat addictions will arguably be administered in (sub)chronic or repeated regimens. Tests of acute effects often fail to predict chronic effects, highlighting the need for chronic testing of candidate medications. METHODS Rats were trained to lever press under a concurrent FR5 FR5 schedule of intravenous cocaine and food reinforcement. Once baseline behavior stabilized, the effects of 7 days once-daily injections of xanomeline were evaluated. RESULTS Xanomeline pretreatment dose-dependently (1.8-10 mg/kg/day) shifted the dose-effect curve for cocaine rightward (up to 5.6-fold increase in A 50), with reallocation of behavior to the food-reinforced lever. There was no indication of tolerance, rather effects grew over days. The suppression of cocaine choice appeared surmountable at high cocaine doses, and xanomeline treatment did not significantly decrease total-session cocaine or food intake. CONCLUSIONS In terms of xanomeline's potential for promoting abstinence from cocaine in humans, the findings were mixed. Xanomeline did produce reallocation of behavior from cocaine to food with a robust increase in food reinforcers earned at some cocaine/xanomeline dose combinations. However, effects appeared surmountable, and food-maintained behavior was also decreased at some xanomeline/cocaine dose combinations, suggesting clinical usefulness may be limited. These data nevertheless support the notion that chronic muscarinic receptor stimulation can reduce cocaine self-administration. Future studies should show whether ligands with higher selectivity for M1 or M1/M4 subtypes would be less limited by undesired effects and can achieve higher efficacy.
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Affiliation(s)
- Morgane Thomsen
- Alcohol and Drug Abuse Research Center, McLean Hospital/Harvard Medical School, Belmont, MA, USA,
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