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Gobira PH, LaMar J, Marques J, Sartim A, Silveira K, Santos L, Wegener G, Guimaraes FS, Mackie K, Lu HC, Joca S. CB1 Receptor Silencing Attenuates Ketamine-Induced Hyperlocomotion Without Compromising Its Antidepressant-Like Effects. Cannabis Cannabinoid Res 2023; 8:768-778. [PMID: 36067014 PMCID: PMC10771879 DOI: 10.1089/can.2022.0072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction: The antidepressant properties of ketamine have been extensively demonstrated in experimental and clinical settings. However, the psychotomimetic side effects still limit its wider use as an antidepressant. It was recently observed that endocannabinoids are inolved in ketamine induced reward properties. As an increase in endocannabinoid signaling induces antidepressant effects, this study aimed to investigate the involvement of cannabinoid type 1 receptors (CB1R) in the antidepressant and psychostimulant effects induced by ketamine. Methods: We tested the effects of genetic and pharmacological inhibition of CB1R in the hyperlocomotion and antidepressant-like properties of ketamine. The effects of ketamine (10-20 mg/kg) were assessed in the open-field and the forced swim tests (FSTs) in CB1R knockout (KO) and wild-type (WT) mice (male and female), and mice pre-treated with rimonabant (CB1R antagonist, 3-10 mg/kg). Results: We found that the motor hyperactivity elicited by ketamine was impaired in CB1R male and female KO mice. A similar effect was observed upon pharmacological blockade of CB1R in WT mice. However, genetic CB1R deletion did not modify the antidepressant effect of ketamine in male mice submitted to the FST. Surprisingly, pharmacological blockade of CB1R induced an antidepressant-like effect in both male and female mice, which was not further potentiated by ketamine. Conclusions: Our results support the hypothesis that CB1R mediate the psychostimulant side effects induced by ketamine, but not its antidepressant properties.
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Affiliation(s)
- Pedro Henrique Gobira
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Jacob LaMar
- The Linda and Jack Gill Center for Biomolecular Science, Indiana University, Bloomington, Indiana, USA
| | - Jade Marques
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Ariandra Sartim
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Kennia Silveira
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Luana Santos
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Gregers Wegener
- Translational Neuropsychiatry Unit, Aarhus University, Aarhus, Denmark
| | | | - Ken Mackie
- The Linda and Jack Gill Center for Biomolecular Science, Indiana University, Bloomington, Indiana, USA
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana, USA
- Program in Neuroscience, Indiana University, Bloomington, Indiana, USA
| | - Hui-Chen Lu
- The Linda and Jack Gill Center for Biomolecular Science, Indiana University, Bloomington, Indiana, USA
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana, USA
- Program in Neuroscience, Indiana University, Bloomington, Indiana, USA
| | - Sâmia Joca
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
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Tashev RE, Stavreva GT, Velikova MS. Subchronic Central Administration of Cannabinoid Ligands Modulates Nociception in Bulbectomized Rats. Folia Med (Plovdiv) 2019; 61:540-544. [PMID: 32337866 DOI: 10.3897/folmed.61.e47957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 06/06/2019] [Indexed: 11/12/2022] Open
Abstract
INTRODUCTION Endocannabinoid system is involved in neuropsychiatric disorders such as major depression. The bilaterally olfactory bulbectomized rat is widely used as an animal model of depression. The removal of the olfactory bulbs produces behavioural, physiological, and neurochemical alterations resembling clinical depression. There is increasing evidence that highlights the important role of cannabinoid signalling in depression and nociception. AIM To investigate the effect of CB1 receptor agonist HU 210 and CB1 receptor antagonist SR 141716A administered icv subchronically (for 7 days) on nociception of rats with model of depression - bilateral olfactory bulbectomy (OBX). MATERIAL AND METHODS Experimental model of depression - bilateral olfactory bulbectomy (OBX). Bilaterally olfactory bulbectomized rats were used as an experimental model of depression. HU 210 (5 µg) or SR 141716A (3 µg) were infused icv for 7 consecutive days, starting 15 days after the olfactory bulbectomy. Nociception was examined by applying paw pressure test (analgesy-meter) evaluating the rat pain threshold. On day 7, five minutes after the last microinjection, the rats were tested in an analgesy-meter and their mechanically evoked pain responses were measured in arbitrary units (AU). RESULTS Microinjections of HU 210 (5 µg) significantly decreased the pain threshold in olfactory bulbectomized rats, while SR 141716A (3 µg) exerted antinociceptive effect by increasing the pain threshold. CONCLUSIONS Data point to an involvement of CB1 receptors in depression-like behaviour and nociception in olfactory bulbectomized rats and support the data for the association between depressive disorder and pain pathways.
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Vangopoulou C, Bourmpoula MT, Koupourtidou C, Giompres P, Stamatakis A, Kouvelas ED, Mitsacos A. Effects of an early life experience on rat brain cannabinoid receptors in adolescence and adulthood. IBRO Rep 2018; 5:1-9. [PMID: 30135950 PMCID: PMC6095101 DOI: 10.1016/j.ibror.2018.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 05/14/2018] [Accepted: 05/26/2018] [Indexed: 12/17/2022] Open
Abstract
Neonatal handling is an experimental model of early life experience associated with resilience in later life challenges, altering the ability of animals to respond to stress. The endocannabinoid system of the brain modulates the neuroendocrine and behavioral effects of stress, while this system is also capable of being modulated by stress exposure itself. The present study has addressed the question of whether neonatal handling in rats could affect cannabinoid receptors, in an age- and sex-dependent manner, using in situ hybridization and receptor binding techniques. Different effects of neonatal handling were observed in adolescent and adult brain on CB1 receptor mRNA and [3H]CP55,940 binding levels, which in some cases were sexually dimorphic. Neonatal handling interfered in the developmental trajectories of CB1 receptor mRNA levels in striatum and amygdaloid nuclei, as well as of [3H]CP55,940 binding levels in almost all regions studied. Adult handled rats showed reduced [3H]CP55,940 binding levels in the prefrontal cortex, striatum, nucleus accumbens and basolateral amygdala, while binding levels in prefrontal cortex of adolescent handled rats were increased. Finally, handling resulted in decreases in female [3H]CP55,940 binding levels in the striatum, nucleus accumbens, CA3 and DG of dorsal hippocampus and basolateral amygdala. Our results suggest that a brief and repeated maternal separation during the neonatal period induces changes on cannabinoid receptors differently manifested between adolescence and adulthood, male and female brain, which could be correlated to their stress response.
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Key Words
- 2-AG, 2-arachidonoylglycerol
- ANOVA, analysis of variance
- Adolescence
- BLA, basolateral nucleus of amygdala
- BSA, bovine serum albumin
- CA1, dorsal field 1 of Ammon’s horn
- CA3, dorsal field 3 of Ammon’s horn
- CB1 cannabinoid receptors
- CB1, cannabinoid receptor 1
- CPu-DL, dorsolateral striatum
- CPu-VM, ventromedial striatum
- CeA, central amygdaloid nucleus
- Cg1, anterior cingulate cortex
- DG, dentate gyrus
- Female rat brain
- GR, glucocorticoid receptors
- GrDG, dentate gyrus granule cell layer
- HPA, hypothalamic-pituitary-adrenal
- IL, infralimbic cortex
- LTD, long-term depression
- MO, medial orbital cortex
- Male rat brain
- Maternal separation
- MoDG, dentate gyrus molecular layer
- NAc, nucleus accumbens
- NS, not significant
- Neonatal handling
- PFC, prefrontal cortex
- PND, postnatal day
- PrL, prelimbic cortex
- ROD, relative optical density
- RT, room temperature
- eCB, endocannabinoid
- mPFC, medial prefrontal cortex
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Affiliation(s)
- Chara Vangopoulou
- Laboratory of Physiology, Medical School, University of Patras, 26500, Patras, Greece
| | - Maria T. Bourmpoula
- Laboratory of Physiology, Medical School, University of Patras, 26500, Patras, Greece
| | | | - Panagiotis Giompres
- Laboratory of Human and Animal Physiology, Department of Biology, University of Patras, 265040, Patras, Greece
| | - Antonios Stamatakis
- Laboratory of Biology-Biochemistry, Faculty of Nursing, University of Athens, 11527, Athens, Greece
| | - Elias D. Kouvelas
- Laboratory of Physiology, Medical School, University of Patras, 26500, Patras, Greece
| | - Ada Mitsacos
- Laboratory of Physiology, Medical School, University of Patras, 26500, Patras, Greece
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Karpińska O, Baranowska-Kuczko M, Kloza M, Kozłowska H. Endocannabinoids modulate G q/11 protein-coupled receptor agonist-induced vasoconstriction via a negative feedback mechanism. ACTA ACUST UNITED AC 2017; 70:214-222. [PMID: 29148061 DOI: 10.1111/jphp.12854] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 10/24/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVES The endocannabinoid (eCB) system centrally and peripherally regulates cardiovascular parameters, including blood pressure, in health and disease. The relationship between Gq/11 protein-coupled receptor activation, regulation of eCBs release (mainly 2-arachidonoylglycerol) and subsequent CB1 receptor activation was initially observed in the central nervous system. Here, we review the latest findings from systemic physiological studies which include for the first time data from pulmonary arteries. We present evidence for direct CB1 -dependent cannabinoid ligand-induced vasorelaxation, vascular expression of eCBs along with their degradation enzymes, and indicate the location of the described interaction. KEY FINDINGS Endocannabinoids (mainly 2-arachidonoylglycerol), acting via CB1 receptors, evoke vasodilatory effects and may modulate responses of vasoconstrictors for Gq/11 protein-coupled receptors including angiotensin II, thromboxane A2 , phenylephrine, noradrenaline in systemic or pulmonary arteries. However, the role of the endothelium in this interaction is not well-established, and the precise vascular location of eCB system components remains unclear, which contributes to discrepancies in the interpretation of results when describing the above-mentioned relationship. SUMMARY Endocannabinoid's negative feedback is responsible for diminishing agonist-induced vasoconstriction, which may be clinically important in the treatment of arterial and pulmonary hypertension. Further research is required to establish the importance of the eCB system and its downstream signalling pathways.
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Affiliation(s)
- Olga Karpińska
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
| | - Marta Baranowska-Kuczko
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
| | - Monika Kloza
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
| | - Hanna Kozłowska
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
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Hashemizadeh S, Sardari M, Rezayof A. Basolateral amygdala CB1 cannabinoid receptors mediate nicotine-induced place preference. Prog Neuropsychopharmacol Biol Psychiatry 2014; 51:65-71. [PMID: 24468643 DOI: 10.1016/j.pnpbp.2014.01.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 01/10/2014] [Accepted: 01/16/2014] [Indexed: 11/19/2022]
Abstract
In the present study, the effects of bilateral microinjections of cannabinoid CB1 receptor agonist and antagonist into the basolateral amygdala (intra-BLA) on nicotine-induced place preference were examined in rats. A conditioned place preference (CPP) apparatus was used for the assessment of rewarding effects of the drugs in adult male Wistar rats. Subcutaneous (s.c.) administration of nicotine (0.2mg/kg) induced a significant CPP, without any effect on the locomotor activity during the testing phase. Intra-BLA microinjection of a non-selective cannabinoid CB1/CB2 receptor agonist, WIN 55,212-2 (0.1-0.5 μg/rat) with an ineffective dose of nicotine (0.1mg/kg, s.c.) induced a significant place preference. On the other hand, intra-BLA administration of AM251 (20-60 ng/rat), a selective cannabinoid CB1 receptor antagonist inhibited the acquisition of nicotine-induced place preference. It should be considered that the microinjection of the same doses of WIN 55,212-2 or AM251 into the BLA, by itself had no effect on the CPP score. The administration of a higher dose of AM251 (60 ng/rat) during the acquisition decreased the locomotor activity of animals on the testing phase. Interestingly, the microinjection of AM251 (20 and 40 ng/rat), but not WIN55,212-2 (0.1-0.5 μg/rat), into the BLA inhibited the expression of nicotine-induced place preference without any effect on the locomotor activity. Taken together, these findings support the possible role of endogenous cannabinoid system of the BLA in the acquisition and the expression of nicotine-induced place preference. Furthermore, it seems that there is a functional interaction between the BLA cannabinoid receptors and nicotine in producing the rewarding effects.
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Affiliation(s)
- Shiva Hashemizadeh
- Department of Animal Biology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Maryam Sardari
- Department of Animal Biology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Ameneh Rezayof
- Department of Animal Biology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran; School of Cognitive Sciences, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran.
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Toniolo EF, Maique ET, Ferreira WA, Heimann AS, Ferro ES, Ramos-Ortolaza DL, Miller L, Devi LA, Dale CS. Hemopressin, an inverse agonist of cannabinoid receptors, inhibits neuropathic pain in rats. Peptides 2014; 56:125-31. [PMID: 24703998 PMCID: PMC4112957 DOI: 10.1016/j.peptides.2014.03.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 03/19/2014] [Accepted: 03/21/2014] [Indexed: 01/05/2023]
Abstract
Direct-acting cannabinoid receptor ligands are well known to reduce hyperalgesic responses after nerve injury, although their psychoactive side effects have damped enthusiasm for their therapeutic development. Hemopressin (Hp) is a nonapeptide that selectively binds CB1 cannabinoid receptors (CB1 receptors) and exerts antinociceptive action in inflammatory pain models. We investigated the effect of Hp on neuropathic pain in rats subjected to chronic constriction injury (CCI) of the sciatic nerve, and explored the mechanisms involved. Oral administration of Hp inhibits mechanical hyperalgesia of CCI-rats up to 6h. Hp treatment also decreases Egr-1 immunoreactivity (Egr-1Ir) in the superficial layer of the dorsal horn of the spinal cord of CCI rats. The antinociceptive effect of Hp seems to be independent of inhibitory descending pain pathway since methysergide (5HT1A receptor antagonist) and yohimbine (α-2 adrenergic receptor antagonist) were unable to prevent Hp antinociceptive effect. Hp decreased calcium flux on DRG neurons from CCI rats, similarly to that observed for AM251, a CB1 receptor antagonist. We also investigated the effect of Hp on potassium channels of CCI rats using UCL 1684 (a blocker of Ca(2+)-activated K(+) channels) which reversed Hp-induced antinociception. Furthermore, concomitant administration of URB-584 (FAAH inhibitor) but not JZL-184 (MAGL inhibitor) potentiates antinociceptive effect of Hp in CCI rats indicating an involvement of anadamide on HP-induced antinociception. Together, these data demonstrate that Hp displays antinociception in pain from neuropathic etiology through local effects. The release of anandamide and the opening of peripheral K(+) channels are involved in the antinociceptive effect.
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Affiliation(s)
- Elaine F Toniolo
- Laboratory of Neuromodulation and Experimental Pain, Hospital Sírio-Libanês, São Paulo, Brazil
| | - Estêfani T Maique
- Laboratory of Neuromodulation and Experimental Pain, Hospital Sírio-Libanês, São Paulo, Brazil
| | - Wilson A Ferreira
- Department of Pharmacology, University of São Paulo, São Paulo, Brazil
| | | | - Emer S Ferro
- Department of Pharmacology, University of São Paulo, São Paulo, Brazil
| | - Dinah L Ramos-Ortolaza
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, USA
| | - Lydia Miller
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, USA
| | - Lakshmi A Devi
- Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, USA
| | - Camila S Dale
- Laboratory of Neuromodulation and Experimental Pain, Department of Anatomy, University of São Paulo, São Paulo, Brazil.
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