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Marinho EAV, Oliveira-Lima AJ, Reis HS, Santos-Baldaia R, Wuo-Silva R, Hollais AW, Yokoyama TS, Frussa-Filho R, Berro LF. Context-dependent effects of the CB1 receptor antagonist rimonabant on morphine-induced behavioral sensitization in female mice. Front Pharmacol 2023; 14:1100527. [PMID: 36814501 PMCID: PMC9939462 DOI: 10.3389/fphar.2023.1100527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/26/2023] [Indexed: 02/09/2023] Open
Abstract
Introduction: The endocannabinoid system has been implicated in the neurobiology of opioid use disorder. While the CB1 receptor antagonist rimonabant has been shown to block some of the behavioral effects of opioids, studies suggest that the treatment environment (i.e., receiving treatment in the drug-associated environment, and/or novelty) can influence its effects. In the present study, we investigated the role of the treatment environment in the effects of rimonabant on the expression of morphine-induced behavioral sensitization. Methods: Adult female Swiss mice were submitted to a behavioral sensitization protocol, during which they received morphine (20 mg/kg, i.p.) in the open-field apparatus, and were subsequently treated with vehicle or rimonabant (1 or 10 mg/kg, i.p.) either in the open-field, in the home-cage or in an activity box (novel environment). The expression of conditioned locomotion (increased locomotor activity in the open-field apparatus in the absence of morphine) and of morphine-induced behavioral sensitization (increased locomotor activity in animals sensitized to morphine) was evaluated during asubsequent saline and morphine challenge, respectively. Results: Animals treated with morphine expressed behavioral sensitization, showing a significant increase in locomotor activity over time. Animals sensitized to morphine and treated with vehicle in the home-cage expressed conditioned locomotion, an effect that was blocked by home-cage treatment with rimonabant. During a saline challenge, only animals sensitized to morphine and treated with saline in the home-cage expressed morphine-induced conditioned locomotion. All morphine-treated animals that received saline during the treatment phase (control groups) expressed behavioral sensitization during the morphine challenge. Treatment with rimonabant in the open-field and in the activity box, but not in the home-cage, blocked the expression of morphine-induced behavioral sensitization. Discussion: Our findings suggest that CB1 receptor antagonism can modulate conditioned responses to morphine even when administered in the home-cage. However, exposure to the drug-associated environment or to a novel environment is necessary for the expression of rimonabant's effects on morphine-induced behavioral sensitization during a morphine challenge.
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Affiliation(s)
- Eduardo A. V. Marinho
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil,Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Alexandre Justo Oliveira-Lima
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil,Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Henrique S. Reis
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil
| | - Renan Santos-Baldaia
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Raphael Wuo-Silva
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Andre W. Hollais
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Thais S. Yokoyama
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Roberto Frussa-Filho
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Lais F. Berro
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil,Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil,Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States,*Correspondence: Lais F. Berro,
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Barros-Santos T, Libarino-Santos M, Anjos-Santos A, Lins JF, Leite JPC, Pacheco RC, Nascimento-Rocha V, Kisaki ND, Tamura EK, Oliveira-Lima AJ, Berro LF, Uetanabaro APT, Nicoli JR, Marinho EAV. Sex differences in the development of conditioned place preference induced by intragastric alcohol administration in mice. Drug Alcohol Depend 2021; 229:109105. [PMID: 34628094 DOI: 10.1016/j.drugalcdep.2021.109105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND The present study aimed to identify for the first time sex differences in the development of CPP induced by intragastric alcohol administration in mice. METHODS Male and female adult Swiss mice were submitted to 16 days of conditioning with alcohol (0.5-3.0 g/kg, N = 8/dose/sex), with 2 post-conditioning tests (after 8 and 16 sessions) during the protocol. RESULTS 8 days of conditioning (4 alcohol sessions, 4 saline sessions) with intragastric alcohol administration were sufficient to induce CPP in male mice at the doses of 1.0, 1.5 and 2.0 g/kg. However, only higher doses (2.0, 2.5 and 3.0 g/kg) induced CPP in female mice using an 8-day conditioning protocol, while a 16-day conditioning protocol was necessary for the development of intragastric alcohol-induced CPP at the doses of 1.0 and 1.5 g/kg. Regardless of the conditioning protocol, higher doses or alcohol that had rewarding effects in females (2.5 and 3.0 g/kg) did not induce CPP in males, with a significant difference between males and females at those doses. Analysis of the potency (EC50) and efficacy (Emax) of alcohol in inducing CPP when administered intragastrically in male and female mice showed significant sex differences with 8 conditioning sessions. CONCLUSIONS Our data show a clear protocol (8 vs 16 days) and dose difference between male and female Swiss mice regarding the development of CPP induced by intragastric alcohol administration. Intragastric alcohol administration is closer to human drinking, and our protocol provides a more translational approach to studying the rewarding effects of alcohol in mice.
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Affiliation(s)
- Thaísa Barros-Santos
- Department of Biological Sciences, Universidade Estadual de Santa Cruz, Campus Soane Nazaré de Andrade, Rod. Jorge Amado, Km 16, 45662-900, Ilhéus, BA, Brazil
| | - Matheus Libarino-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Alexia Anjos-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Juliana F Lins
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - João P C Leite
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Roseliz C Pacheco
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Victor Nascimento-Rocha
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Natali D Kisaki
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Eduardo K Tamura
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Alexandre J Oliveira-Lima
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Laís F Berro
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil; Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N State St, Jackson, MS 39216, USA.
| | - Ana Paula T Uetanabaro
- Department of Biological Sciences, Universidade Estadual de Santa Cruz, Campus Soane Nazaré de Andrade, Rod. Jorge Amado, Km 16, 45662-900, Ilhéus, BA, Brazil
| | - Jacques R Nicoli
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Pampulha - Belo Horizonte, MG, Brazil
| | - Eduardo A V Marinho
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-900 Ilhéus, BA, Brazil.
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Henriques GM, Anjos-Santos A, Rodrigues IRS, Nascimento-Rocha V, Reis HS, Libarino-Santos M, Barros-Santos T, Yokoyama TS, Bertagna NB, Favoretto CA, Moraes CRG, Cruz FC, Barbosa PCR, Marinho EAV, Oliveira-Lima AJ, Berro LF. Ibogaine Blocks Cue- and Drug-Induced Reinstatement of Conditioned Place Preference to Ethanol in Male Mice. Front Pharmacol 2021; 12:739012. [PMID: 34621171 PMCID: PMC8490685 DOI: 10.3389/fphar.2021.739012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/07/2021] [Indexed: 11/23/2022] Open
Abstract
Ibogaine is a psychedelic extracted from the plant Tabernanthe iboga Baill. (Apocynaceae), natural from Africa, and has been proposed as a potential treatment for substance use disorders. In animal models, ibogaine reduces ethanol self-administration. However, no study to date has investigated the effects of ibogaine on ethanol-induced conditioned place preference (CPP). The present study aimed to investigate the effects of repeated treatment with ibogaine on the reinstatement of CPP to ethanol in male mice. The rewarding effects of ethanol (1.8 g/kg, i. p.) or ibogaine (10 or 30 mg/kg, p. o.) were investigated using the CPP model. Furthermore, we evaluated the effects of repeated treatment with ibogaine (10 or 30 mg/kg, p. o.) on the reinstatement of ethanol-induced CPP. Reinstatement was evaluated under two conditions: 1) during a priming injection re-exposure test in which animals received a priming injection of ethanol and had free access to the CPP apparatus; 2) during a drug-free test conducted 24 h after a context-paired re-exposure, in which subjects received an injection of ethanol and were confined to the compartment previously conditioned to ethanol. Our results show that ethanol, but not ibogaine, induced CPP in mice. Treatment with ibogaine after conditioning with ethanol blocked the reinstatement of ethanol-induced CPP, both during a drug priming reinstatement test and during a drug-free test conducted after re-exposure to ethanol in the ethanol-paired compartment. Our findings add to the literature suggesting that psychedelics, in particular ibogaine, may have therapeutic properties for the treatment of alcohol use disorder at doses that do not have rewarding effects per se.
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Affiliation(s)
| | - Alexia Anjos-Santos
- Department of Health Sciences, Universidade Estadual De Santa Cruz, Ilhéus, Brazil.,Department of Pharmacology, Universidade Federal De São Paulo, São Paulo, Brazil
| | - Isa R S Rodrigues
- Department of Biological Sciences, Universidade Estadual De Santa Cruz, Ilhéus, Brazil
| | | | - Henrique S Reis
- Department of Health Sciences, Universidade Estadual De Santa Cruz, Ilhéus, Brazil
| | | | - Thaísa Barros-Santos
- Department of Biological Sciences, Universidade Estadual De Santa Cruz, Ilhéus, Brazil
| | - Thais S Yokoyama
- Department of Pharmacology, Universidade Federal De São Paulo, São Paulo, Brazil
| | - Natalia B Bertagna
- Department of Pharmacology, Universidade Federal De São Paulo, São Paulo, Brazil
| | | | | | - Fábio C Cruz
- Department of Pharmacology, Universidade Federal De São Paulo, São Paulo, Brazil
| | - Paulo C R Barbosa
- Department of Health Sciences, Universidade Estadual De Santa Cruz, Ilhéus, Brazil
| | - Eduardo A V Marinho
- Department of Health Sciences, Universidade Estadual De Santa Cruz, Ilhéus, Brazil
| | | | - Laís F Berro
- Department of Health Sciences, Universidade Estadual De Santa Cruz, Ilhéus, Brazil.,Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
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Santos-Molina L, Herrerias A, Zawatsky CN, Gunduz-Cinar O, Cinar R, Iyer MR, Wood CM, Lin Y, Gao B, Kunos G, Godlewski G. Effects of a Peripherally Restricted Hybrid Inhibitor of CB1 Receptors and iNOS on Alcohol Drinking Behavior and Alcohol-Induced Endotoxemia. Molecules 2021; 26:5089. [PMID: 34443679 PMCID: PMC8399901 DOI: 10.3390/molecules26165089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 12/26/2022] Open
Abstract
Alcohol consumption is associated with gut dysbiosis, increased intestinal permeability, endotoxemia, and a cascade that leads to persistent systemic inflammation, alcoholic liver disease, and other ailments. Craving for alcohol and its consequences depends, among other things, on the endocannabinoid system. We have analyzed the relative role of central vs. peripheral cannabinoid CB1 receptors (CB1R) using a "two-bottle" as well as a "drinking in the dark" paradigm in mice. The globally acting CB1R antagonist rimonabant and the non-brain penetrant CB1R antagonist JD5037 inhibited voluntary alcohol intake upon systemic but not upon intracerebroventricular administration in doses that elicited anxiogenic-like behavior and blocked CB1R-induced hypothermia and catalepsy. The peripherally restricted hybrid CB1R antagonist/iNOS inhibitor S-MRI-1867 was also effective in reducing alcohol consumption after oral gavage, while its R enantiomer (CB1R inactive/iNOS inhibitor) was not. The two MRI-1867 enantiomers were equally effective in inhibiting an alcohol-induced increase in portal blood endotoxin concentration that was caused by increased gut permeability. We conclude that (i) activation of peripheral CB1R plays a dominant role in promoting alcohol intake and (ii) the iNOS inhibitory function of MRI-1867 helps in mitigating the alcohol-induced increase in endotoxemia.
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Affiliation(s)
- Luis Santos-Molina
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
| | - Alexa Herrerias
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
| | - Charles N. Zawatsky
- Section on Fibrotic Disorders, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (C.N.Z.); (R.C.)
| | - Ozge Gunduz-Cinar
- Laboratory of Behavioral and Genomic Neuroscience, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA;
| | - Resat Cinar
- Section on Fibrotic Disorders, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (C.N.Z.); (R.C.)
| | - Malliga R. Iyer
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (M.R.I.); (C.M.W.)
| | - Casey M. Wood
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (M.R.I.); (C.M.W.)
| | - Yuhong Lin
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (Y.L.); (B.G.)
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (Y.L.); (B.G.)
| | - George Kunos
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
| | - Grzegorz Godlewski
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
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5
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Libarino-Santos M, Brandão NRN, Borges ÁLN, Anjos-Santos A, Cata-Preta EG, Barros-Santos T, Oliveira-Campos D, Brito ACL, Oliveira TS, Kisaki ND, Silva AAF, Cruz FC, Berro LF, Marinho EAV, Oliveira-Lima AJ. Aripiprazole and topiramate, alone or in combination, block the expression of ethanol-induced conditioned place preference in mice. Drug Alcohol Depend 2021; 220:108520. [PMID: 33485011 DOI: 10.1016/j.drugalcdep.2021.108520] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/19/2020] [Accepted: 12/21/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Ethanol is the most largely consumed drug in the world. Because of its complex mechanisms of action, studies suggest that the combination of drugs with distinct pharmacological effects may be a promising alternative for treating ethanol use disorder. In the present study, we aimed to investigate the effects of topiramate, alone and in combination with aripiprazole, on ethanol-induced conditioned place preference (CPP). METHODS Adult male mice were conditioned with ethanol (1.8 g/kg, i.p.) in the conditioned place preference (CPP) apparatus. Animals were then treated with vehicle, topiramate (2.5, 5 or 10 mg/kg, i.p.), aripiprazole (0.025, 0.05, 0.075 or 0.1 mg/kg, i.p.) or a combination of subthreshold doses of topiramate and aripiprazole (5 and 0.075 mg/kg, respectively) in the ethanol-paired compartment for 8 consecutive days. The expression of ethanol-induced CPP was then evaluated during a drug-free test performed 24 h after a re-exposure to ethanol in the ethanol-paired compartment. RESULTS Treatment with 10 mg/kg topiramate or 0.1 mg/kg aripiprazole blocked the expression of ethanol-induced CPP. Combined treatment with 5 mg/kg topiramate and 0.075 mg/kg aripiprazole, doses that alone were not effective, also blocked the expression of CPP to ethanol. CONCLUSIONS Topiramate and aripiprazole, alone or in combination, blocked the expression of ethanol-induced CPP. By showing that a combination of lower, subthreshold doses or topiramate and aripiprazole was effective in blocking the conditioned reinforcing properties of the ethanol-paired environment in mice, our current findings provide important insights into the therapeutic use of these drugs in ethanol use disorder.
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Affiliation(s)
- Matheus Libarino-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Nina R N Brandão
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Áurea L N Borges
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Alexia Anjos-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Elisângela G Cata-Preta
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Thaísa Barros-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Daniella Oliveira-Campos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Ana Carolina L Brito
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Thaynara S Oliveira
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Natali D Kisaki
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Aline A F Silva
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Fabio C Cruz
- Department of Pharmacology, São Paulo Federal University, Leal Prado Building, Botucatu 862 Street, 04024-002, Vila Clementino, São Paulo, SP, Brazil
| | - Laís F Berro
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil; Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N State St, Jackson, MS, 39216, USA.
| | - Eduardo A V Marinho
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil
| | - Alexandre J Oliveira-Lima
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Rod. Ilhéus/Itabuna, Km 16, 45662-0, Ilhéus, BA, Brazil.
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Effects of the Positive Allosteric Modulator of Metabotropic Glutamate Receptor 5, VU-29, on Maintenance Association between Environmental Cues and Rewarding Properties of Ethanol in Rats. Biomolecules 2020; 10:biom10050793. [PMID: 32443872 PMCID: PMC7277181 DOI: 10.3390/biom10050793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 12/28/2022] Open
Abstract
: Metabotropic glutamate subtype 5 (mGlu5) receptors are implicated in various forms of synaptic plasticity, including drugs of abuse. In drug-addicted individuals, associative memories can drive relapse to drug use. The present study investigated the potential of the mGlu5 receptor positive allosteric modulator (PAM), VU-29 (30 mg/kg, i.p.), to inhibit the maintenance of a learned association between ethanol and environmental context by using conditioned place preference (CPP) in rats. The ethanol-CPP was established by the administration of ethanol (1.0 g/kg, i.p. × 10 days) using an unbiased procedure. Following ethanol conditioning, VU-29 was administered at various post-conditioning times (ethanol free state at the home cage) to ascertain if there was a temporal window during which VU-29 would be effective. Our experiments indicated that VU-29 did not affect the expression of ethanol-induced CPP when it was given over two post-conditioning days. However, the expression of ethanol-CPP was inhibited by 10-day home cage administration of VU-29, but not by first 2-day or last 2-day injection of VU-29 during the 10-day period. These findings reveal that VU-29 can inhibit the maintenance of ethanol-induced CPP, and that treatment duration contributes to this effect of VU-29. Furthermore, VU-29 effect was reversed by pretreatment with either MTEP (the mGlu5 receptor antagonist), or MK-801 (the N-methyl-D-aspartate-NMDA receptor antagonist). Thus, the inhibitory effect of VU-29 is dependent on the functional interaction between mGlu5 and NMDA receptors. Because a reduction in ethanol-associated cues can reduce relapse, mGlu5 receptor PAM would be useful for therapy of alcoholism. Future research is required to confirm the current findings.
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Libarino-Santos M, de Santana Santos ACG, Cata-Preta EG, Barros-Santos T, Nunes Brandão NR, Borges ALN, Santos-Baldaia R, Hollais AW, Baldaia MA, Berro LF, Marinho EAV, Frussa-Filho R, Oliveira-Lima AJ. Role of the treatment environment in the effects of aripiprazole on ethanol-induced behavioral sensitization and conditioned place preference in female mice. Drug Alcohol Depend 2020; 208:107856. [PMID: 31954952 DOI: 10.1016/j.drugalcdep.2020.107856] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/11/2019] [Accepted: 12/30/2019] [Indexed: 01/06/2023]
Abstract
BACKGROUND Evidence suggests that aripiprazole, a partial dopamine D2 and serotonin 5-HT1A receptor agonist and 5-HT2A receptor antagonist, show significant efficacy in reducing alcohol use. We have previously demonstrated that treatment with aripiprazole blocked the reinstatement of cocaine-induced behavioral sensitization in a context-dependent manner, suggesting that the treatment environment may modulate the therapeutic effects of aripiprazole. The present study aimed to evaluate the effects of treatment with aripiprazole on ethanol-induced behavioral sensitization and conditioned place preference in female mice, and the role of the treatment environment in those effects. METHODS Adult female mice were either sensitized with ethanol injections in the open-field apparatus, or conditioned with ethanol in the conditioned place preference (CPP) apparatus. Animals were then treated with vehicle or 0.1 mg/kg aripiprazole paired to the test environment (open-field or CPP apparatus) or not (home-cage treatments) for 4 alternate days, and the subsequent expression of behavioral sensitization or CPP to ethanol was evaluated during or following an ethanol re-exposure, respectively. RESULTS Repeated treatment with aripiprazole attenuated the expression of ethanol-induced behavioral sensitization regardless of the treatment environment. Treatment with aripiprazole was only effective at preventing the reinstatement of ethanol-induced CPP when paired with the ethanol-associated environment, but not when administered in the home-cage. CONCLUSIONS The present findings corroborate previous studies suggesting the effectiveness of aripiprazole for the treatment of alcohol use disorder. Our results also point to an important role of the treatment environment in the therapeutic effects of aripiprazole in rodent models of ethanol abuse.
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Affiliation(s)
| | | | | | - Thaísa Barros-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil
| | | | | | - Renan Santos-Baldaia
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - André W Hollais
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Marilia A Baldaia
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Laís F Berro
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil; Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States.
| | - Eduardo A V Marinho
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil
| | - Roberto Frussa-Filho
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Cata-Preta EG, Serra YA, Moreira-Junior EDC, Reis HS, Kisaki ND, Libarino-Santos M, Silva RRR, Barros-Santos T, Santos LC, Barbosa PCR, Costa JL, Oliveira-Lima AJ, Berro LF, Marinho EAV. Ayahuasca and Its DMT- and β-carbolines - Containing Ingredients Block the Expression of Ethanol-Induced Conditioned Place Preference in Mice: Role of the Treatment Environment. Front Pharmacol 2018; 9:561. [PMID: 29896106 PMCID: PMC5986901 DOI: 10.3389/fphar.2018.00561] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 05/10/2018] [Indexed: 12/27/2022] Open
Abstract
Ayahuasca is a hallucinogenic beverage produced from the decoction of Banisteriopsis caapi (Bc) and Psychotria viridis (Pv), β-carboline- and N,N-dimethyltryptamine(DMT)-containing plants, respectively. Accumulating evidence suggests that ayahuasca may have therapeutic effects on ethanol abuse. It is not known, however, whether its effects are dependent on the presence of DMT or if non-DMT-containing components would have therapeutic effects. The aim of the present study was to investigate the rewarding properties of ayahuasca (30, 100, and 300 mg/kg, orally), Bc (132, 440, and 1320 mg/kg, orally) and Pv (3.75, 12.5 and 37.5 mg/kg, i.p.) extracts and their effects on ethanol (1.8 g/kg, i.p.) reward using the conditioned place preference (CPP) paradigm in male mice. Animals were conditioned with ayahuasca, Bc or Pv extracts during 8 sessions. An intermediate, but not a high, dose of ayahuasca induced CPP in mice. Bc and Pv did not induce CPP. Subsequently, the effects of those extracts were tested on the development of ethanol-induced CPP. Ayahuasca, Bc or Pv were administered before ethanol injections during conditioning sessions. While Bc and Pv exerted no effects on ethanol-induced CPP, pretreatment with ayahuasca blocked the development of CPP to ethanol. Finally, the effects of a post-ethanol-conditioning treatment with ayahuasca, Bc or Pv on the expression of ethanol-induced CPP were tested. Animals were conditioned with ethanol, and subsequently treated with either ayahuasca, Bc or Pv in the CPP environment previously associated with saline or ethanol for 6 days. Animals were then reexposed to ethanol and ethanol-induced CPP was quantified on the following day. Treatment with all compounds in the ethanol-paired environment blocked the expression of ethanol-induced CPP. Administration of an intermediate, but not a high, dose of ayahuasca and Bc, as well as Pv administration, in the saline-paired compartment blocked the expression of ethanol-induced CPP. The present study sheds light into the components underlying the therapeutic effects of ayahuasca on ethanol abuse, indicating that ayahuasca and its plant components can decrease ethanol reward at doses that do not exert abuse liability. Importantly, the treatment environment seems to influence the therapeutic effects of ayahuasca and Bc, providing important insights into clinical practice.
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Affiliation(s)
| | - Yasmim A. Serra
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | | | - Henrique S. Reis
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Natali D. Kisaki
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | | | - Raiany R. R. Silva
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Thaísa Barros-Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Lucas C. Santos
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Paulo C. R. Barbosa
- Department of Philosophy and Human Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - José L. Costa
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
| | | | - Lais F. Berro
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
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Seo JY, Ko YH, Ma SX, Lee BR, Lee SY, Jang CG. Repeated restraint stress reduces the acquisition and relapse of methamphetamine-conditioned place preference but not behavioral sensitization. Brain Res Bull 2018; 139:99-104. [DOI: 10.1016/j.brainresbull.2018.01.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 01/26/2018] [Accepted: 01/31/2018] [Indexed: 01/01/2023]
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