1
|
Uysal F, Çam Özünlü SA, Alhirmizi IAO, Arslan SO, Annaç E, Parlar A, Yıldız O. The Role of Cannabinoid-1 Receptor Ligands in the Ovalbumin-Induced Mouse Model of Allergic Asthma: Is It Related to Transient Receptor Potential Vanilloid-1 Channels? Cannabis Cannabinoid Res 2024. [PMID: 38656908 DOI: 10.1089/can.2023.0151] [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] [Indexed: 04/26/2024] Open
Abstract
Objectives: The aim of this study was to investigate the role of cannabinoid (CB1) receptors on airway inflammation and hypersensitivity in allergic asthma and the potential interactions with TRPV1 channels. Materials and Methods: BALB/c mice were sensitized and provoked with ovalbumin to create a model of allergic asthma. CB1 selective agonist arachidonoyl 2'-chloroethylamide (ACEA) was administered intraperitoneally at doses of 0.5, 3, and 5 mg/kg. Receptor antagonism studies were performed utilizing selective CB1 antagonists AM251 at a dose of 3 mg/kg. TRPV1 channel was selectively blocked by capsazepine at a dose of 2.5 mg/kg. Penh values were recorded in vivo by a whole-body plethysmograph under methacholine challenge. Inflammatory cell count was performed in bronchoalveolar lavage fluid (BALF). Serum levels of proinflammatory cytokines were measured by Enzyme-Linked ImmunoSorbent Assay (ELISA). Inflammation in the lung tissue was scored histopathologically. Statistical significance was determined using one-way analysis of variance or Kruskal-Wallis test and expressed as p<0.05. Results: In sensitized animals, provocation with inhaled ovalbumin increased Penh values, serum interleukin (IL)-4, IL-5, IL-13 levels, eosinophil, neutrophil, lymphocyte, macrophage counts in BALF, and inflammation in the lung tissue. ACEA applications did not significantly alter Penh values, BALF inflammatory cell levels, and histological changes related to inflammation in the lung tissue according to the disease group; however, only at a dose of 5 mg/kg, it reduced the levels of the inflammatory cytokine IL-4. AM251 decreased Penh values, eosinophil and neutrophil migration in BALF, and inflammation score of lung tissue compared with the disease group. Although BALF inflammatory cell levels and Penh values were higher in the AM251+ACEA group than in the AM251 group, the differences were insignificant. In the CPZ+ACEA group, Penh values were significantly higher, and serum IL-4 and IL-13 levels and BALF eosinophil counts were lower than that in the CPZ group. Conclusions: This study demonstrated an important role of the CB1 receptors in allergic asthma. CB1 antagonism reduced airway hyperresponsiveness and inflammation and showed immunomodulatory effects. The effect of the CB1 agonist ACEA on asthma does not appear to be related to TRPV1 channels.
Collapse
Affiliation(s)
- Fatma Uysal
- Department of Pharmacology, Faculty of Medicine, Ankara Yıldırım Beyazıt University, Ankara, Türkiye
| | - Saliha Ayşenur Çam Özünlü
- Department of Pharmacology, Faculty of Medicine, Ankara Yıldırım Beyazıt University, Ankara, Türkiye
| | | | - Seyfullah Oktay Arslan
- Department of Pharmacology, Faculty of Medicine, Ankara Yıldırım Beyazıt University, Ankara, Türkiye
| | - Ebru Annaç
- Department of Histology, Faculty of Medicine, Adıyaman University, Adıyaman, Türkiye
| | - Ali Parlar
- Department of Pharmacology, Faculty of Medicine, Adıyaman University, Adıyaman, Türkiye
| | - Oğuzhan Yıldız
- Department of Pharmacology, Gülhane Faculty of Medicine, University of Health Sciences, Ankara, Türkiye
| |
Collapse
|
2
|
Tamaddonfard S, Erfanparast A, Tamaddonfard E, Soltanalinejad F. The CB1 cannabinoid receptors involvement in anti-epileptic effect of safranal on penicillin-induced epileptiform activity in rats. Vet Res Forum 2024; 15:35-41. [PMID: 38464610 PMCID: PMC10921132 DOI: 10.30466/vrf.2023.2000166.3851] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 08/23/2023] [Indexed: 03/12/2024]
Abstract
Neuroprotective effects for natural products are supported by several studies. In this regard, safranal, a constitute of saffron, has the potential to exert beneficial effects in neuro-logical disorders such as Parkinson's disease, epilepsy, stroke, multiple sclerosis and Alzheimer's disease. Here, we investigated the effect of safranal on penicillin-induced epileptiform activity. Also, the effects of intracerebroventricular (ICV) microinjection of AM251 as a CB1-cannabinoid receptors antagonist to clarify the possible mechanism of safranal were evaluated. Epileptiform activity was induced by intra-cortical administration of penicillin (300 IU, 1.50 μL) in urethane-anesthetized rats. Electrocorticographic recordings were used to analyze the frequency and amplitude of spike waves. Intraperitoneal injections of safranal at doses of 1.00 and 4.00 mg kg-1 significantly reduced both the number and amplitude of spike waves. The ICV microinjection of AM251 (0.50 μg 2.00 μL-1) significantly increased the frequency and amplitude of spike waves. In addition, the anti-epileptic effect induced by administration of safranal at a dose of 4.00 mg kg-1 was partially prevented by ICV microinjection of 0.50 μg 2.00 μL-1 of AM251. The results showed anti-epileptiform activities for safranal. Central CB1 cannabinergic receptors might be involved in the anti-epileptiform activity of safranal.
Collapse
Affiliation(s)
- Sina Tamaddonfard
- PhD Candidate, Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran;
| | - Amir Erfanparast
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - Esmaeal Tamaddonfard
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - Farhad Soltanalinejad
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| |
Collapse
|
3
|
Fartootzadeh R, Taheri RA, Nourani MR, Goudarzi K. Orexin and cannabinoid systems modulate long-term potentiation of the hippocampus CA1 area in anesthetized rats. Iran J Basic Med Sci 2024; 27:461-465. [PMID: 38419882 PMCID: PMC10897562 DOI: 10.22038/ijbms.2023.73979.16075] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/20/2023] [Indexed: 03/02/2024]
Abstract
Objectives Long-term potentiation (LTP) is a kind of synaptic plasticity and has a key role in learning and memory. Endocannabinoids and orexins are the endogenous systems that can modulate synaptic plasticity. Given that new studies have shown an interaction between cannabinoid and orexin systems in the brain, we decided to examine this interaction between the two systems on LTP induction in rat's hippocampus. Materials and Methods Twenty-eight male Wistar rats were used for evaluating the effects of co-administrating of cannabinoid-1 receptor (CB1R) antagonist (AM251) and orexin-2 receptor (OX2R) antagonist (TCS OX2 29) on the induction of LTP in the Schaffer collateral-CA1 synapses of rat hippocampus. The drugs were microinjected into the CA1 area of rat hippocampus 30 min before inducing of LTP. Results Results showed that sole administration of the antagonists inhibited LTP, with respect to the control group. Also, co-administrating of them reduced LTP as compared to the control group, but not significantly more than that when the antagonists were solely microinjected into the CA1. Nonetheless, the inhibitory effect of concurrent administration of the antagonists on LTP lasted until the end of the recording. Conclusion These results propose that endogenous cannabinoids and orexins play a role in the expression of LTP, at least by CA1-CB1Rs and CA1-OX2Rs, respectively. Finally, there is no interaction between CB1R and OX2R on the induction of LTP in the Schaffer collateral-CA1 synapses; therefore, these two systems possibly act through common signaling pathways in the hippocampus's CA1 region.
Collapse
Affiliation(s)
- Reza Fartootzadeh
- Department of Physiology, Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
- Department of Physiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ramezan Ali Taheri
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Nourani
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Kamelya Goudarzi
- Department of Psychiatry, Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
| |
Collapse
|
4
|
Tokutake T, Asano T, Miyanishi H, Nakaya S, Izuo N, Nitta A. Cannabinoid Type 1 Receptors in the Basolateral Amygdala Regulate ACPA-Induced Place Preference and Anxiolytic-Like Behaviors. Neurochem Res 2022. [PMID: 35984590 DOI: 10.1007/s11064-022-03708-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/28/2022] [Accepted: 07/21/2022] [Indexed: 10/15/2022]
Abstract
The number of cannabis users is increasing in the world. However, the mechanisms involved in the psychiatric effects and addiction formation remain unclear. Medical treatments against cannabis addiction have not yet been established. Δ9-Tetrahydrocannabinol (THC), the main active substance in cannabis, binds and affects cannabinoid type 1 receptors (CB1R) in the brain. The mice were intraperitoneally (i.p.) administered arachidonylcyclopropylamide (ACPA), a CB1R-selective agonist, and then two behavioral experiments on anxiety and addiction were performed. Administration of ACPA caused anxiolytic-like behavior in the elevated plus maze test. In addition, ACPA increased place preference in a conditioned place preference (CPP) test. The basolateral amygdala (BLA), which is the focus of this study, is involved in anxiety-like behavior and reward and is reported to express high levels of CB1R. We aimed to reveal the role of CB1R in BLA for ACPA-induced behavior. AM251, a CB1R selective antagonist, was administered intra-BLA before i.p. administration of ACPA. Intra-BLA administration of AM251 inhibited ACPA-induced anxiolytic-like behavior and place preference. These results suggest that CB1R in the BLA contributes to behavior disorders caused by the acute or chronic use of cannabis.
Collapse
|
5
|
Weresa J, Pędzińska-Betiuk A, Schlicker E, Hirnle G, Mitrosz M, Malinowska B. Beneficial and harmful effects of CB 1 and CB 2 receptor antagonists on chronotropic and inotropic effects related to atrial β-adrenoceptor activation in humans and in rats with primary hypertension. Clin Exp Pharmacol Physiol 2021; 48:1547-1557. [PMID: 34333780 DOI: 10.1111/1440-1681.13560] [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: 05/20/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 11/26/2022]
Abstract
We have previously shown that cannabinoid CB1 and CB2 receptor antagonists, AM251 and AM630, respectively, modulate cardiostimulatory effects of isoprenaline in atria of Wistar rats. The aim of the present study was to examine whether such modulatory effects can also be observed (a) in the human atrium and (b) in spontaneously hypertensive rats (SHR) and normotensive Wistar Kyoto rats (WKY). Inotropic effects of isoprenaline and/or CGP12177 (that activate the high- and low-affinity site of β1 -adrenoceptors, respectively) were examined in paced human atrial trabeculae and rat left atria; chronotropic effects were studied in spontaneously beating right rat atria. AM251 modified cardiostimulatory effects more strongly than AM630. Therefore, AM251 (1 μM) enhanced the chronotropic effect of isoprenaline in WKY and SHR as well as inotropic action of isoprenaline in WKY and in human atria. It also increased the inotropic influence of CGP12177 in SHR. AM630 (1 μM) decreased the inotropic effect of isoprenaline and CGP12177 in WKY, but enhanced the isoprenaline-induced inotropic effect in SHR and human atria. Furthermore, AM251 (0.1 and 3 μM) and AM630 (0.1 μM) reduced the inotropic action of isoprenaline in human atria. In conclusion, cannabinoid receptor antagonists have potentially harmful and beneficial effects through their amplificatory effects on β-adrenoceptor-mediated positive chronotropic and inotropic actions, respectively.
Collapse
Affiliation(s)
- Jolanta Weresa
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
| | - Anna Pędzińska-Betiuk
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
| | - Eberhard Schlicker
- Department of Pharmacology and Toxicology, University of Bonn, Bonn, Germany
| | - Grzegorz Hirnle
- Department of Cardiac Surgery, Medical University of Białystok, Białystok, Poland
| | - Maciej Mitrosz
- Department of Cardiac Surgery, Medical University of Białystok, Białystok, Poland
| | - Barbara Malinowska
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
| |
Collapse
|
6
|
Parihar VK, Syage A, Flores L, Lilagan A, Allen BD, Angulo MC, Song J, Smith SM, Arechavala RJ, Giedzinski E, Limoli CL. The Cannabinoid Receptor 1 Reverse Agonist AM251 Ameliorates Radiation-Induced Cognitive Decrements. Front Cell Neurosci 2021; 15:668286. [PMID: 34262437 PMCID: PMC8273551 DOI: 10.3389/fncel.2021.668286] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/26/2021] [Indexed: 11/13/2022] Open
Abstract
Despite advancements in the radiotherapeutic management of brain malignancies, resultant sequelae include persistent cognitive dysfunction in the majority of survivors. Defining the precise causes of normal tissue toxicity has proven challenging, but the use of preclinical rodent models has suggested that reductions in neurogenesis and microvascular integrity, impaired synaptic plasticity, increased inflammation, and alterations in neuronal structure are contributory if not causal. As such, strategies to reverse these persistent radiotherapy-induced neurological disorders represent an unmet medical need. AM251, a cannabinoid receptor 1 reverse agonist known to facilitate adult neurogenesis and synaptic plasticity, may help to ameliorate radiation-induced CNS impairments. To test this hypothesis, three treatment paradigms were used to evaluate the efficacy of AM251 to ameliorate radiation-induced learning and memory deficits along with disruptions in mood at 4 and 12 weeks postirradiation. Results demonstrated that acute (four weekly injections) and chronic (16 weekly injections) AM251 treatments (1 mg/kg) effectively alleviated cognitive and mood dysfunction in cranially irradiated mice. The beneficial effects of AM251 were exemplified by improved hippocampal- and cortical-dependent memory function on the novel object recognition and object in place tasks, while similar benefits on mood were shown by reductions in depressive- and anxiety-like behaviors on the forced swim test and elevated plus maze. The foregoing neurocognitive benefits were associated with significant increases in newly born (doublecortin+) neurons (1.7-fold), hippocampal neurogenesis (BrdU+/NeuN+mature neurons, 2.5-fold), and reduced expression of the inflammatory mediator HMGB (1.2-fold) in the hippocampus of irradiated mice. Collectively, these findings indicate that AM251 ameliorates the effects of clinically relevant cranial irradiation where overall neurological benefits in memory and mood coincided with increased hippocampal cell proliferation, neurogenesis, and reduced expression of proinflammatory markers.
Collapse
Affiliation(s)
- Vipan K Parihar
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Amber Syage
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Lidia Flores
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Angelica Lilagan
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Barrett D Allen
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Maria C Angulo
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Joseph Song
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Sarah M Smith
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Rebecca J Arechavala
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Erich Giedzinski
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| | - Charles L Limoli
- Department of Radiation Oncology, University of California, Irvine, Irvine, CA, United States
| |
Collapse
|
7
|
Fartootzadeh R, Alaei H, Reisi P. Mutual assistance of nucleus accumbens cannabinoid receptor-1 and orexin receptor-2 in response to nicotine: a single-unit study. Res Pharm Sci 2021; 16:173-181. [PMID: 34084204 PMCID: PMC8102922 DOI: 10.4103/1735-5362.310524] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/22/2020] [Accepted: 01/24/2021] [Indexed: 11/28/2022] Open
Abstract
Background and purpose: The nucleus accumbens (NAc) express both orexin-2 receptor (OX2R) and cannabinoid receptor type 1 (CB1R). Orexin and cannabinoid regulate the addictive properties of nicotine. In this study, the effect of the CB1R blockade on the electrical activity of NAc neurons in response to nicotine, and its probable interaction with the OX2R in this event, within this area, were examined via the single-unit recording. Experimental approach: The spontaneous firing rate of NAc was initially recorded for 15 min, and then 5 min before subcutaneous injection of nicotine (0.5 mg/kg)/saline, AM251 and TCS-OX2-29 were injected into the NAc. Neuronal responses were recorded for 70 min, after nicotine administration. Findings/Results: Nicotine excited the NAc neurons significantly and intra-NAc microinjection of AM251 (25 and 125 ng/rat), as a selective CB1R antagonist, prevented the nicotine-induced increases of NAc neuronal responses. Moreover, microinjection of AM251 (125 ng/rat), before saline injection, could not affect the percentage of change of the neuronal response. Finally, simultaneous intra-NAc administration of the effective or ineffective doses of AM251 and TCS-OX2-29 (a selective antagonist of OX2R) prevented the nicotine- induced increases of NAc neuronal responses, so that there was a significant difference between the group received ineffective doses of both antagonists and the AM251 ineffective dose. Conclusion and implications: The results suggest that the CB1R can modulate the NAc reaction to the nicotine, and it can be concluded that there is a potential interplay between the OX2R and CB1R in the NAc, in relation to nicotine.
Collapse
Affiliation(s)
- Reza Fartootzadeh
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Hojjatallah Alaei
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Parham Reisi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| |
Collapse
|
8
|
Rodriguez JL, Lopez JA, Steel JJ. Involvement of the endocannabinoid system in the inhibition of Sindbis virus replication: a preliminary study. J Cannabis Res 2021; 3:10. [PMID: 33892823 PMCID: PMC8066438 DOI: 10.1186/s42238-021-00068-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/29/2020] [Accepted: 04/13/2021] [Indexed: 01/03/2023] Open
Abstract
Background Sindbis virus (Alphaviridae) is a plus-strand RNA virus that is dependent on the host cell for replication. Cannabinoid (CB) receptors are found on most human cells, including virally infected cells. Activation of cannabinoid receptors has been shown to alter normal cellular physiology. This study aimed to assess how agonist (ACEA) or antagonists/inverse agonist (AM251) of the cannabinoid receptors would alter the cellular environment and impact Sindbis virus replication. Methods Human hepatoma (Huh7) cells were used as our model for viral replication. Cells were infected with Sindbis virus (SINV) and then treated with CB agonist (ACEA) (10 μM) or antagonist/inverse agonist (AM-251) (10 μM) and virus replication was monitored. A double subgenomic Sindbis virus containing a green fluorescent protein (GFP) reporter gene inserted into a 3′ subgenomic promoter was utilized for these assays to quickly measure viral replication. GFP fluorescent cells were analyzed using flow cytometry to measure the percentage of cells expressing the viral reporter and also quantify the levels of GFP fluorescence. Result Treatment of SINV-infected Huh7 cells with CB1 receptor antagonist/inverse agonist (AM251, 10 μM) resulted in a significant decrease in viral replication, while infected cells treated with a CB1 receptor agonist (ACEA, 10 μM) resulted in a significant increase of viral infection. The data indicates that activation of CB1 receptor by cannabinoids significantly influences the ability of Sindbis virus to replicate in the host cell. Conclusion Blocking CB1 receptor activity with 10 μM AM251 reduced viral replication, but activating the CB1 receptor with 10 μM ACEA resulted in an increase in viral infection. These results indicate cannabinoids may significantly impact a virus replicating in human liver cells. Future confirmation with other viruses and cell lines will be performed to better understand the impact of cannabinoids on viral infections.
Collapse
Affiliation(s)
- Juan L Rodriguez
- Biology Department, Colorado State University-Pueblo, 2200 Bonforte Blvd LS220, Pueblo, CO, 81001, USA.
| | - Joseph A Lopez
- Biology Department, Colorado State University-Pueblo, 2200 Bonforte Blvd LS220, Pueblo, CO, 81001, USA
| | - J Jordan Steel
- Biology Department, Colorado State University-Pueblo, 2200 Bonforte Blvd LS220, Pueblo, CO, 81001, USA.,Department of Biology, US Air Force Academy, 2355 Faculty Dr. DFB, Colorado Springs, CO, USA
| |
Collapse
|
9
|
Chaves YC, Genaro K, Crippa JA, da Cunha JM, Zanoveli JM. Cannabidiol induces antidepressant and anxiolytic-like effects in experimental type-1 diabetic animals by multiple sites of action. Metab Brain Dis 2021; 36:639-652. [PMID: 33464458 DOI: 10.1007/s11011-020-00667-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [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: 08/03/2020] [Accepted: 12/29/2020] [Indexed: 12/15/2022]
Abstract
Cannabidiol (CBD), a phytocannabinoid compound, presents antidepressant and anxiolytic-like effects in the type-1 diabetes mellitus(DM1) animal model. Although the underlying mechanism remains unknown, the type-1A serotonin receptor (5-HT1A) and cannabinoids type-1 (CB1) and type-2 (CB2) receptors seem to play a central role in mediating the beneficial effects on emotional responses. We aimed to study the involvement of these receptors on an antidepressant- and anxiolytic-like effects of CBD and on some parameters of the diabetic condition itself. After 2 weeks of the DM1 induction in male Wistar rats by streptozotocin (60 mg/kg; i.p.), animals were treated continuously for 2-weeks with the 5-HT1A receptor antagonist WAY100635 (0.1 mg/kg, i.p.), CB1 antagonist AM251 (1 mg/kg i.p.) or CB2 antagonist AM630 (1 mg/kg i.p.) before the injection of CBD (30 mg/kg, i.p.) or vehicle (VEH, i.p.) and then, they were submitted to the elevated plus-maze and forced swimming tests. Our findings show the continuous treatment with CBD improved all parameters evaluated in these diabetic animals. The previous treatment with the antagonists - 5-HT1A, CB1, or CB2 - blocked the CBD-induced antidepressant-like effect whereas only the blockade of 5-HT1A or CB1 receptors was able to inhibit the CBD-induced anxiolytic-like effect. Regarding glycemic control, only the blockade of CB2 was able to inhibit the beneficial effect of CBD in reducing the glycemia of diabetic animals. These findings indicated a therapeutic potential for CBD in the treatment of depression/anxiety associated with diabetes pointing out a complex intrinsic mechanism in which 5-HT1A, CB1, and/or CB2 receptors are differently recruited.
Collapse
MESH Headings
- Animals
- Anti-Anxiety Agents/pharmacology
- Anti-Anxiety Agents/therapeutic use
- Antidepressive Agents/pharmacology
- Antidepressive Agents/therapeutic use
- Cannabidiol/pharmacology
- Cannabidiol/therapeutic use
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/psychology
- Diabetes Mellitus, Type 1/chemically induced
- Diabetes Mellitus, Type 1/drug therapy
- Diabetes Mellitus, Type 1/psychology
- Male
- Maze Learning/drug effects
- Maze Learning/physiology
- Rats
- Rats, Wistar
- Receptor, Cannabinoid, CB1/agonists
- Receptor, Cannabinoid, CB1/metabolism
- Receptor, Serotonin, 5-HT1A/metabolism
Collapse
Affiliation(s)
- Yane Costa Chaves
- Department of Pharmacology, Biological Science Sector, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Karina Genaro
- Institute of Neurosciences and Behavior (INeC), University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
- Department of Pharmaceutical Sciences, University of California, Irvine, CA, USA
| | - José Alexandre Crippa
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
- National Institute of Science and Technology for Translational Medicine (INCT-TM- CNPq), Ribeirão Preto, São Paulo, Brazil
| | - Joice Maria da Cunha
- Department of Pharmacology, Biological Science Sector, Federal University of Paraná, Curitiba, Paraná, Brazil
- Institute of Neurosciences and Behavior (INeC), University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Janaína Menezes Zanoveli
- Department of Pharmacology, Biological Science Sector, Federal University of Paraná, Curitiba, Paraná, Brazil.
- Institute of Neurosciences and Behavior (INeC), University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil.
| |
Collapse
|
10
|
Fang G, Wang Y. Transcranial direct current stimulation (tDCS) produce anti-anxiety response in acute stress exposure rats via activation of amygdala CB1R. Behav Brain Res 2020; 400:113050. [PMID: 33279640 DOI: 10.1016/j.bbr.2020.113050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/26/2022]
Abstract
Anxiety is one of the most common mental disorders worldwide. Currently, the main anti-anxiety drugs, selective serotonin/noradrenalin reuptake inhibitors (SSRIs/SNRIs), are always associated with delayed onset of action and low therapeutic response rate. Benzodiazepines can produce rapid effects, but their long-term use may result in severe adverse reaction and drug dependence. Transcranial direct current stimulation (tDCS) is one of the noteworthy noninvasive brain stimulation techniques and is expected to be a new choice of anti-anxiety therapy. However, the underlying mechanism remains unclear. In our recent published study, we have observed the important role of endogenous cannabinoid in the pathophysiology and treatment of anxiety. Here we verified the anti-anxiety effects of tDCS in the acute stress exposure rats, and investigated the possible role of amygdala cannabinoid receptor 1 (CB1R) activation in the anti-anxiety response of tDCS. Forced swimming exposure produced anxiety-like behaviors, which can be reversed by tDCS treatment. tDCS increased the time spent in the center without affection of locomotor activity in open field test (OFT) and elevated the number of entries into open arm and time spent in open arm in elevated plus maze test (EPMT). However, Inhibition of CB1R function by AM251 intraperitoneal injection or CB1R knockdown in amygdala produced the negative effects on the anti-anxiety action of tDCS. In conclusion, tDCS may play an anti-anxiety role at least partly via activation of amygdala CB1R, which provides a theoretical basis for the clinical application of tDCS in the treatment of anxiety disorder.
Collapse
Affiliation(s)
- Guoxiang Fang
- Department of Emergency, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, 710018, PR China
| | - Ying Wang
- Department of Psychiatry, Xi'an International Medical Center Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, 710100, China.
| |
Collapse
|
11
|
Correia-Sá IB, Carvalho CM, Serrão PV, Machado VA, Carvalho SO, Marques M, Vieira-Coelho MA. AM251, a cannabinoid receptor 1 antagonist, prevents human fibroblasts differentiation and collagen deposition induced by TGF-β - An in vitro study. Eur J Pharmacol 2020; 892:173738. [PMID: 33220269 DOI: 10.1016/j.ejphar.2020.173738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 09/03/2020] [Revised: 11/01/2020] [Accepted: 11/04/2020] [Indexed: 10/22/2022]
Abstract
Previous studies showed that cannabinoid 1 receptor (CB1) is linked with skin fibrosis and scar tissue formation in mice. Therefore, the topical use of cannabinoids may have a role in the prevention or treatment of local fibrotic and wound healing diseases as hypertrophic scars or keloids. In this study, we asked whether CB1 activation or inactivation would change fibroblast differentiation into myofibroblast and collagen deposition in skin human fibroblast. Primary cultures of adult human fibroblasts were obtained from abdominal human skin. Cells were stimulated with transforming growth factor-beta (TGF-β, 10ng/ml) and treated with a CB1 selective agonist (arachidonyl-2-chloroethylamide, ACEA 1 μM) and an antagonist (AM251 1, 5 and 10 μM). Alpha-smooth muscle actin (α-SMA) was quantified using Immunocytochemistry and Western Blot. Collagen was quantified with Sirius Red staining assay. Significance was assessed by One-way ANOVA. P < 0.05 was considered significant. TGF-β significantly increases α-SMA expression. ACEA 1 μM significantly increases collagen deposition but does not change α-SMA expression. AM251 10 μM added in the absence and the presence of ACEA reduces α-SMA expression and collagen content in TGF-β treated cells. AM251 shows a concentration-dependent effect over collagen deposition with a pIC50 of 5.5 (4.6-6.4). TGF-β significantly increases CB1 receptor expression. CB1 inactivation with AM251 prevents fibroblasts differentiation and collagen deposition, induced by TGF-β in human fibroblasts. The outcome supports that CB1 is a molecular target for wound healing disorders and in vivo and pre-clinical studies should be implemented to clarify this premise.
Collapse
Affiliation(s)
- Inês B Correia-Sá
- Department of Plastic, Reconstructive and Aesthetic Surgery and Burn Unit, Faculty of Medicine, University of Porto and Centro Hospitalar São João, EPE, Porto, Portugal; Department of Biomedicine - Pharmacology and Therapeutics Unit, Faculty of Medicine, University of Oporto, Porto, Portugal.
| | - Cláudia M Carvalho
- Department of Biomedicine - Pharmacology and Therapeutics Unit, Faculty of Medicine, University of Oporto, Porto, Portugal
| | - Paula V Serrão
- Department of Biomedicine - Pharmacology and Therapeutics Unit, Faculty of Medicine, University of Oporto, Porto, Portugal
| | - Vera A Machado
- Department of Biomedicine - Pharmacology and Therapeutics Unit, Faculty of Medicine, University of Oporto, Porto, Portugal
| | - Sofia O Carvalho
- Department of Biomedicine - Pharmacology and Therapeutics Unit, Faculty of Medicine, University of Oporto, Porto, Portugal
| | - Marisa Marques
- Department of Plastic, Reconstructive and Aesthetic Surgery and Burn Unit, Faculty of Medicine, University of Porto and Centro Hospitalar São João, EPE, Porto, Portugal
| | - Maria A Vieira-Coelho
- Department of Biomedicine - Pharmacology and Therapeutics Unit, Faculty of Medicine, University of Oporto, Porto, Portugal
| |
Collapse
|
12
|
Rezaie M, Nasehi M, Vaseghi S, Alimohammadzadeh K, Islami Vaghar M, Mohammadi-Mahdiabadi-Hasani MH, Zarrindast MR. The interaction effect of sleep deprivation and cannabinoid type 1 receptor in the CA1 hippocampal region on passive avoidance memory, depressive-like behavior and locomotor activity in rats. Behav Brain Res 2020; 396:112901. [PMID: 32920013 DOI: 10.1016/j.bbr.2020.112901] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/03/2020] [Accepted: 09/03/2020] [Indexed: 12/19/2022]
Abstract
Increasing evidence shows the interaction effect of cannabinoids and sleep on cognitive functions. In the present study, we aimed to investigate the interaction effect of cannabinoids type 1 receptor (CB1r) in the CA1 hippocampal region and sleep deprivation (SD) on passive avoidance memory and depressive-like behavior in male Wistar rats. We used water box apparatus to induce total SD (TSD) for 24 h. The shuttle-box was applied to assess passive avoidance memory and locomotion apparatus was applied to assess locomotor activity. Forced swim test (FST) was used to evaluate rat's behavior. ACPA (CB1r agonist) at the doses of 0.01, 0.001 and 0.0001 μg/rat, and AM251 (CB1r antagonist) at the doses of 100, 10 and 1 ng/rat were injected intra-CA1, five minutes after training via stereotaxic surgery. Results showed SD impaired memory. ACPA at the doses of 0.01 and 0.001 μg/rat impaired memory and at all doses did not alter the effect of SD on memory. AM251 by itself did not alter memory, while at lowest dose (1 ng/rat) restored SD-induced memory deficit. Both drugs induced depressive-like behavior in a dose-dependent manner. Furthermore, both drugs decreased swimming at some doses (ACPA at 0.0001 μg/rat, AM251 at 0.001 and 0.01 ng/rat). Also, ACPA at the highest dose increased climbing of SD rats. In conclusion, we suggest CB1r may interact with the effect of SD on memory. Additionally, cannabinoids may show a dose-dependent manner in modulating mood and behavior. Interestingly, CB1r agonists and antagonists may exhibit a similar effect in some behavioral assessments.
Collapse
Affiliation(s)
- Maede Rezaie
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Salar Vaseghi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Tehran, Iran.
| | - Khalil Alimohammadzadeh
- Department of Health Services Management, North Tehran Branch, Islamic Azad University, Tehran, Iran; Health Economics Policy Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Islami Vaghar
- Department of Nursing, Faculity of Nursing and Midwifery, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Mohammad-Reza Zarrindast
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Neuroendocrinology, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
13
|
Poleszak E, Wośko S, Sławińska K, Wyska E, Szopa A, Świąder K, Wróbel A, Szponar J, Doboszewska U, Wlaź P, Wlaź A, Serefko A. Influence of the endocannabinoid system on the antidepressant activity of bupropion and moclobemide in the behavioural tests in mice. Pharmacol Rep 2020; 72:1562-1572. [PMID: 32221841 PMCID: PMC7704509 DOI: 10.1007/s43440-020-00088-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 12/12/2019] [Revised: 03/03/2020] [Accepted: 03/10/2020] [Indexed: 12/30/2022]
Abstract
Background Though there are several classes of antidepressant drugs available on the pharmaceutical market, depression that affects globally over 320 million people is still undertreated. Scientists have made attempts to develop novel therapeutical strategies to maximize effectiveness of therapy and minimize undesired reactions. One of the ideas is use of either dual-action agents or combined administration of two substances that affect diverse neurotransmissions. Thus, we investigated whether the selected CB receptor ligands (oleamide, AM251, JWH133, and AM630) can have an impact on the activity of bupropion and moclobemide. Bupropion belongs to the dual acting drugs, whereas moclobemide is an inhibitor of monoamine oxidase. Methods The mice forced swim test and the tail suspension test were applied in order to determine the potential antidepressant-like activity, whereas the HPLC method was used in order to assess the brain concentrations of the tested antidepressants. Results An intraperitoneal injection of sub-effective doses of oleamide (5 mg/kg), AM251 (0.25 mg/kg), and AM630 (0.25 mg/kg) increased activity of bupropion (10 mg/kg) in both behavioural tests. Effects of moclobemide (1.5 mg/kg) were potentiated only by AM251. These results were not influenced by the hypo- or hyperlocomotion of animals. Conclusion The outcomes of the present study revealed that particularly activation or inhibition of the CB1 receptor function may augment the antidepressant activity of bupropion, whereas only inhibition of the CB1 receptor function manages to increase activity of moclobemide. Most probably, an interplay between CB receptor ligands and bupropion or moclobemide takes place at the cellular level.
Collapse
Affiliation(s)
- Ewa Poleszak
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, 20-093, Lublin, Poland.
| | - Sylwia Wośko
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, 20-093, Lublin, Poland
| | - Karolina Sławińska
- Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, 20-093, Lublin, Poland
| | - Elżbieta Wyska
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Aleksandra Szopa
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, 20-093, Lublin, Poland
| | - Katarzyna Świąder
- Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, 20-093, Lublin, Poland
| | - Andrzej Wróbel
- Second Department of Gynecology, Medical University of Lublin, Jaczewskiego 8, 20-090, Lublin, Poland
| | - Jarosław Szponar
- Toxicology Clinic, Medical University of Lublin: Clinical Department of Toxicology and Cardiology, Stefan Wyszyński Regional Specialist Hospital in Lublin, Al. Kraśnicka 100, Lublin, Poland
| | - Urszula Doboszewska
- Department of Animal Physiology, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Piotr Wlaź
- Department of Animal Physiology, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Aleksandra Wlaź
- Department of Pathophysiology, Medical University of Lublin, Jaczewskiego 8, 20-090, Lublin, Poland
| | - Anna Serefko
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, 20-093, Lublin, Poland.
| |
Collapse
|
14
|
Newsom RJ, Stafford J, Garcia RJ, Campeau S. Endocannabinoid signaling as an intrinsic component of the circuits mediating adaptive responses to repeated stress exposure in adult male sprague dawley rats. Stress 2020; 23:174-189. [PMID: 31506004 PMCID: PMC7054150 DOI: 10.1080/10253890.2019.1655538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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] [Indexed: 02/06/2023] Open
Abstract
Evidence implicates the endocannabinoid (eCB) system as a negative modulator of neural and endocrine responses to acute stressors. Recently, eCB signaling was also reported to contribute to habituation of hypothalamo-pituitary-adrenal (HPA) axis responses to repeated homotypic stress. The present studies were initiated to distinguish a potential role of eCB signaling in the expression vs. the acquisition of habituation of the HPA axis response to repeated stress. In each of three experiments, adult male Sprague Dawley rats were exposed to daily, 30-minute sessions of loud white noise (95 dB), which resulted in a progressive decrease in HPA axis response over successive days. Cannabinoid receptor 1 (CB1) antagonist AM251 (0.5, 1.0 or 2.0 mg/kg, i.p.) was used to examine the role of eCB signaling in homotypic stressor habituation and heterotypic (novel) stressor cross-sensitization of neuroendocrine activity. Pretreatment with high dose (2.0 mg/kg) AM251 before each of 7 consecutive, daily loud noise exposures (acquisition of habituation) resulted in potentiation of stress-induced HPA axis activation and disruption of habituation. After an 8th loud noise exposure without AM251 pretreatment, the same group of rats displayed a habituated plasma corticosterone (CORT) level similar to that of controls, indicating that CB1 receptor antagonist pretreatments did not disrupt the acquisition of habituation. In two additional experiments, rats acquired habituation to loud noise drug free, then lower doses of AM251 (0.5 and 1.0 mg.kg) were administered before a final exposure (expression of habituation) to the homotypic stressor and/or a novel heterotypic stressor. CB1 receptor antagonism disrupted the expression of CORT response habituation and some of the c-fos mRNA reduction associated with it and facilitated novel stressor sensitization in doses that did not potentiate acute responses to these stressors. Collectively, these data suggest a progressive intensification of neural eCB signaling at CB1 receptors with repeated stress exposures.
Collapse
Affiliation(s)
- Ryan J. Newsom
- Department of Psychology and Neuroscience and Center for Neuroscience, University of Colorado Boulder, UCB 345, Boulder, CO 80309 USA
| | - Jacob Stafford
- Department of Psychology and Neuroscience and Center for Neuroscience, University of Colorado Boulder, UCB 345, Boulder, CO 80309 USA
| | - Robert J. Garcia
- Department of Psychology and Neuroscience and Center for Neuroscience, University of Colorado Boulder, UCB 345, Boulder, CO 80309 USA
| | - Serge Campeau
- Department of Psychology and Neuroscience and Center for Neuroscience, University of Colorado Boulder, UCB 345, Boulder, CO 80309 USA
| |
Collapse
|
15
|
Newsom RJ, Garcia RJ, Stafford J, Osterlund C, O'Neill CE, Day HEW, Campeau S. Remote CB1 receptor antagonist administration reveals multiple sites of tonic and phasic endocannabinoid neuroendocrine regulation. Psychoneuroendocrinology 2020; 113:104549. [PMID: 31884322 DOI: 10.1016/j.psyneuen.2019.104549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 10/21/2019] [Accepted: 12/13/2019] [Indexed: 11/23/2022]
Abstract
Endogenous cannabinoids (endocannabinoids, eCB) are expressed throughout the body and contribute to regulation of the hypothalamo-pituitary-adrenal (HPA) axis and general stress reactivity. This study assessed the contributions of CB1 receptors (CB1R) in the modulation of basal and stress-induced neural and HPA axis activities. Catheterized adult male rats were placed in chambers to acclimate overnight, with their catheters connected and exteriorized from the chambers for relatively stress-free remote injections. The next morning, the CB1R antagonist AM251 (1 or 2 mg/kg) or vehicle was administered, and 30 min later, rats were exposed to loud noise stress (30 min) or no noise (basal condition). Blood, brains, pituitary and adrenal glands were collected immediately after the procedures for analysis of c-fos and CB1R mRNAs, corticosterone (CORT) and adrenocorticotropin hormone (ACTH) plasma levels. Basally, CB1R antagonism induced c-fos mRNA in the basolateral amygdala (BLA) and auditory cortex (AUD) and elevated plasma CORT, indicating disruption of eCB-mediated constitutive inhibition of activity. CB1R blockade also potentiated stress-induced hormone levels and c-fos mRNA in several regions such as the bed nucleus of the stria terminalis (BST), lateral septum (LS), and basolateral amygdala (BLA) and the paraventricular nucleus of the hypothalamus (PVN). CB1R mRNA was detected in all central tissues investigated, and the adrenal cortex, but at very low levels in the anterior pituitary gland. Interestingly, CB1R mRNA was rapidly and bidirectionally regulated in response to stress and/or antagonist treatment in some regions. eCBs therefore modulate the HPA axis by regulating both constitutive and activity-dependent inhibition at multiple levels.
Collapse
|
16
|
Laricchiuta D, Balsamo F, Fabrizio C, Panuccio A, Termine A, Petrosini L. CB 1 Activity Drives the Selection of Navigational Strategies: A Behavioral and c-Fos Immunoreactivity Study. Int J Mol Sci 2020; 21:E1072. [PMID: 32041135 DOI: 10.3390/ijms21031072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 11/26/2022] Open
Abstract
To promote efficient explorative behaviors, subjects adaptively select spatial navigational strategies based on landmarks or a cognitive map. The hippocampus works alone or in conjunction with the dorsal striatum, both representing the neuronal underpinnings of the navigational strategies organized on the basis of different systems of spatial coordinate integration. The high expression of cannabinoid type 1 (CB1) receptors in structures related to spatial learning—such as the hippocampus, dorsal striatum and amygdala—renders the endocannabinoid system a critical target to study the balance between landmark- and cognitive map-based navigational strategies. In the present study, mice treated with the CB1-inverse agonist/antagonist AM251 or vehicle were trained on a Circular Hole Board, a task that could be solved through either navigational strategy. At the end of the behavioral testing, c-Fos immunoreactivity was evaluated in specific nuclei of the hippocampus, dorsal striatum and amygdala. AM251 treatment impaired spatial learning and modified the pattern of the performed navigational strategies as well as the c-Fos immunoreactivity in the hippocampus, dorsal striatum and amygdala. The present findings shed light on the involvement of CB1 receptors as part of the selection system of the navigational strategies implemented to efficiently solve the spatial problem.
Collapse
|
17
|
Bilel S, Tirri M, Arfè R, Stopponi S, Soverchia L, Ciccocioppo R, Frisoni P, Strano-Rossi S, Miliano C, De-Giorgio F, Serpelloni G, Fantinati A, De Luca MA, Neri M, Marti M. Pharmacological and Behavioral Effects of the Synthetic Cannabinoid AKB48 in Rats. Front Neurosci 2019; 13:1163. [PMID: 31736697 PMCID: PMC6831561 DOI: 10.3389/fnins.2019.01163] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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: 08/09/2019] [Accepted: 10/14/2019] [Indexed: 12/12/2022] Open
Abstract
AKB48 is a designer drug belonging to the indazole synthetic cannabinoids class, illegally sold as herbal blend, incense, or research chemicals for their psychoactive cannabis-like effects. In the present study, we investigated the in vivo pharmacological and behavioral effects of AKB48 in male rats and measured the pharmacodynamic effects of AKB48 and simultaneously determined its plasma pharmacokinetic. AKB48 at low doses preferentially stimulated dopamine release in the nucleus accumbens shell (0.25 mg/kg) and impaired visual sensorimotor responses (0.3 mg/kg) without affecting acoustic and tactile reflexes, which are reduced only to the highest dose tested (3 mg/kg). Increasing doses (0.5 mg/kg) of AKB48 impaired place preference and induced hypolocomotion in rats. At the highest dose (3 mg/kg), AKB48 induced hypothermia, analgesia, and catalepsy; inhibited the startle/pre-pulse inhibition test; and caused cardiorespiratory changes characterized by bradycardia and mild bradipnea and SpO2 reduction. All behavioral and neurochemical effects were fully prevented by the selective CB1 receptor antagonist/inverse agonist AM251. AKB48 plasma concentrations rose linearly with increasing dose and were correlated with changes in the somatosensory, hypothermic, analgesic, and cataleptic responses in rats. For the first time, this study shows the pharmacological and behavioral effects of AKB48 in rats, correlating them to the plasma levels of the synthetic cannabinoid. Chemical Compound Studied in This Article: AKB48 (PubChem CID: 57404063); AM251 (PubChem CID: 2125).
Collapse
Affiliation(s)
- Sabrine Bilel
- Department of Morphology, Experimental Medicine and Surgery, Section of Legal Medicine and Laboratory for Technologies of Advanced Therapies (LTTA) Centre, University of Ferrara, Ferrara, Italy
| | - Micaela Tirri
- Department of Morphology, Experimental Medicine and Surgery, Section of Legal Medicine and Laboratory for Technologies of Advanced Therapies (LTTA) Centre, University of Ferrara, Ferrara, Italy
| | - Raffaella Arfè
- Department of Morphology, Experimental Medicine and Surgery, Section of Legal Medicine and Laboratory for Technologies of Advanced Therapies (LTTA) Centre, University of Ferrara, Ferrara, Italy.,Section of Legal Medicine, Institute of Public Health, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Serena Stopponi
- Pharmacology Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Laura Soverchia
- Pharmacology Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Roberto Ciccocioppo
- Pharmacology Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Paolo Frisoni
- Department of Morphology, Experimental Medicine and Surgery, Section of Legal Medicine and Laboratory for Technologies of Advanced Therapies (LTTA) Centre, University of Ferrara, Ferrara, Italy
| | - Sabina Strano-Rossi
- Section of Legal Medicine, Institute of Public Health, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Cristina Miliano
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Fabio De-Giorgio
- Section of Legal Medicine, Institute of Public Health, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giovanni Serpelloni
- Department of Psychiatry in the College of Medicine, Drug Policy Institute, University of Florida, Gainesville, FL, United States
| | - Anna Fantinati
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | | | - Margherita Neri
- Department of Morphology, Experimental Medicine and Surgery, Section of Legal Medicine and Laboratory for Technologies of Advanced Therapies (LTTA) Centre, University of Ferrara, Ferrara, Italy
| | - Matteo Marti
- Department of Morphology, Experimental Medicine and Surgery, Section of Legal Medicine and Laboratory for Technologies of Advanced Therapies (LTTA) Centre, University of Ferrara, Ferrara, Italy.,Department of Anti-Drug Policies, Presidency of the Council of Ministers, Collaborative Center for the Italian National Early Warning System, Ferrara, Italy
| |
Collapse
|
18
|
Sufian MS, Amin MR, Kanyo R, Allison WT, Ali DW. CB 1 and CB 2 receptors play differential roles in early zebrafish locomotor development. ACTA ACUST UNITED AC 2019; 222:jeb.206680. [PMID: 31253713 DOI: 10.1242/jeb.206680] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 05/06/2019] [Accepted: 06/19/2019] [Indexed: 12/22/2022]
Abstract
Endocannabinoids (eCBs) mediate their effects through actions on several receptors, including the cannabinoid receptors CB1R and CB2R. The role played by eCBs in the development of locomotor systems is not fully understood. In this study, we investigated the roles of the eCB system in zebrafish development by pharmacologically inhibiting CB1R and CB2R (with AM251 and AM630, respectively) in either the first or second day of development. We examined the morphology of motor neurons and we determined neuromuscular outputs by quantifying the amount of swimming in 5 days post-fertilization larvae. Blocking CB2R during the first day of development resulted in gross morphological deficits and reductions in heart rate that were greater than those following treatment with the CB1R blocker AM251. Blocking CB1Rs from 0 to 24 h post-fertilization resulted in an increase in the number of secondary and tertiary branches of primary motor neurons, whereas blocking CB2Rs had the opposite effect. Both treatments manifested in reduced levels of swimming. Additionally, blocking CB1Rs resulted in greater instances of non-inflated and partially inflated swim bladders compared with AM630 treatment, suggesting that at least some of the deficits in locomotion may result from an inability to adjust buoyancy. Together, these findings indicate that the eCB system is pivotal to the development of the locomotor system in zebrafish, and that perturbations of the eCB system early in life may have detrimental effects.
Collapse
Affiliation(s)
- Md Shah Sufian
- Department of Biological Sciences, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9
| | - Md Ruhul Amin
- Department of Biological Sciences, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9
| | - Richard Kanyo
- Department of Biological Sciences, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9.,Neuroscience and Mental Health Institute, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9
| | - W Ted Allison
- Department of Biological Sciences, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9.,Neuroscience and Mental Health Institute, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9
| | - Declan W Ali
- Department of Biological Sciences, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9 .,Neuroscience and Mental Health Institute, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9.,Department of Physiology, CW-405 Biological Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9
| |
Collapse
|
19
|
Wang ZJ, Hu SSJ, Bradshaw HB, Sun L, Mackie K, Straiker A, Heinbockel T. Cannabinoid receptor-mediated modulation of inhibitory inputs to mitral cells in the main olfactory bulb. J Neurophysiol 2019; 122:749-759. [PMID: 31215302 PMCID: PMC6734407 DOI: 10.1152/jn.00100.2018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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] [Received: 02/12/2018] [Revised: 06/07/2019] [Accepted: 06/08/2019] [Indexed: 11/22/2022] Open
Abstract
The endocannabinoid (eCB) signaling system has been functionally implicated in many brain regions. Our understanding of the role of cannabinoid receptor type 1 (CB1) in olfactory processing remains limited. Cannabinoid signaling is involved in regulating glomerular activity in the main olfactory bulb (MOB). However, the cannabinoid-related circuitry of inputs to mitral cells in the MOB has not been fully determined. Using anatomical and functional approaches we have explored this question. CB1 was present in periglomerular processes of a GAD65-positive subpopulation of interneurons but not in mitral cells. We detected eCBs in the mouse MOB as well as the expression of CB1 and other genes associated with cannabinoid signaling in the MOB. Patch-clamp electrophysiology demonstrated that CB1 agonists activated mitral cells and evoked an inward current, while CB1 antagonists reduced firing and evoked an outward current. CB1 effects on mitral cells were absent in subglomerular slices in which the olfactory nerve layer and glomerular layer were removed, suggesting the glomerular layer as the site of CB1 action. We previously observed that GABAergic periglomerular cells show the inverse response pattern to CB1 activation compared with mitral cells, suggesting that CB1 indirectly regulates mitral cell activity as a result of cellular activation of glomerular GABAergic processes . This hypothesis was supported by the finding that cannabinoids modulated synaptic transmission to mitral cells. We conclude that CB1 directly regulates GABAergic processes in the glomerular layer to control GABA release and, in turn, regulates mitral cell activity with potential effects on olfactory threshold and behavior.NEW & NOTEWORTHY Cannabinoid signaling with cannabinoid receptor type 1 (CB1) is involved in the regulation of glomerular activity in the main olfactory bulb (MOB). We detected endocannabinoids in the mouse MOB. CB1 was present in periglomerular processes of a GAD65-positive subpopulation of interneurons. CB1 agonists activated mitral cells. CB1 directly regulates GABAergic processes to control GABA release and, in turn, regulates mitral cell activity with potential effects on olfactory threshold and behavior.
Collapse
Affiliation(s)
- Ze-Jun Wang
- Department of Anatomy, Howard University College of Medicine, Washington, District of Columbia
| | - Sherry Shu-Jung Hu
- Department of Psychology, National Cheng Kung University, Tainan, Taiwan
| | - Heather B Bradshaw
- The Gill Center for Biomolecular Science and the Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana
| | - Liqin Sun
- Department of Anatomy, Howard University College of Medicine, Washington, District of Columbia
| | - Ken Mackie
- The Gill Center for Biomolecular Science and the Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana
| | - Alex Straiker
- The Gill Center for Biomolecular Science and the Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana
| | - Thomas Heinbockel
- Department of Anatomy, Howard University College of Medicine, Washington, District of Columbia
| |
Collapse
|
20
|
Gholizadeh F, Ghahremani MH, Aliebrahimi S, Shadboorestan A, Ostad SN. Assessment of Cannabinoids Agonist and Antagonist in Invasion Potential of K562 Cancer Cells. Iran Biomed J 2019; 23. [PMID: 29883990 PMCID: PMC6707105 DOI: 10.29252/.23.2.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The prominent hallmark of malignancies is the metastatic spread of cancer cells. Recent studies have reported that the nature of invasive cells could be changed after this phenomenon, causing chemotherapy resistance. It has been demonstrated that the up-regulated expression of matrix metalloproteinase (MMP) 2/MMP-9, as a metastasis biomarker, can fortify the metastatic potential of leukemia. Furthermore, investigations have confirmed the inhibitory effect of cannabinoid and endocannabinoid on the proliferation of cancer cells in vitro and in vivo. METHODS In the present study, the inhibitory effect of WIN 55212-2 (a CB1/CB2 receptor agonist) and AM251 (a selective CB1 receptor antagonist) on K562 cells, as a chronic myelogenous leukemia (CML) model, was evaluated using MTT and invasion assay. Expressions of MMP-2 and MMP-9 were then assessed by Western blot analysis. RESULTS The data obtained from MTT assay showed that WIN 55212-2 could attenuate cell proliferation; however, AM251 was less effective in this regard. Our results showed that WIN 55212-2 considerably reduced cancer cell invasiveness, while AM251 exhibited a converse effect. Moreover, CB1 activation resulted in decreased expression of MMP-2 and MMP-9. CONCLUSION Our findings clarifies that CB1 receptors are responsible for anti-invasive effects in the K562 cell line.
Collapse
Affiliation(s)
- Fatemeh Gholizadeh
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Ghahremani
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shima Aliebrahimi
- Department of Cellular and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Amir Shadboorestan
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Nasser Ostad
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran; ,Corresponding Author: Seyed Nasser Ostad , Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran; Tel.: (+98-21) 66959105; E-mail:
| |
Collapse
|
21
|
Vaseghi S, Babapour V, Nasehi M, Zarrindast MR. The role of CA1 CB1 receptors on lithium-induced spatial memory impairment in rats. EXCLI J 2018; 17:916-934. [PMID: 30564071 PMCID: PMC6295625 DOI: 10.17179/excli2018-1511] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 08/27/2018] [Indexed: 02/06/2023]
Abstract
Lithium, a glycogen synthase kinase-3β (GSK-3β) inhibitor, prevents cannabinoid withdrawal syndrome, but there is limited data exploring the interaction between lithium and cannabinoid system on memory processes. The present study aimed to test the interaction between dorsal hippocampal (CA1 region) cannabinoid system and lithium on spatial memory in rats. Spatial memory was assessed in Morris Water Maze (MWM) apparatus by a single training session of eight trials. The results showed that pre-training intra-CA1 microinjection of ACPA, the cannabinoid type 1 receptor (CB1r) agonist, at doses of 0.001, 0.01 or 1 µg/rat, or AM251, the cannabinoid type 1 receptor (CB1r) antagonist, at doses of 1, 10 or 100 ng/rat, increased escape latency and traveled distance to the platform, suggesting a spatial learning impairment, whereas intraperitoneal administration of lithium (0.5, 1 or 5 mg/kg) had no effect on spatial learning. Also, rats that received lithium plus a lower dose of ACPA (0.001 µg/rat) or AM251 (1 ng/rat) had successful performance in the MWM. In the probe test, the results showed that pre-training administration of lithium (5 mg/kg) and ACPA (0.01 or 1 µg/rat) but not AM251 (at all doses used) impaired spatial memory retrieval. Also, lower dose of ACPA (0.001 µg/rat) or AM251 (1 ng/rat) potentiated the effect of ineffective doses of lithium (0.5 and 1 mg/kg) on spatial memory retrieval, while restored the effect of effective dose of lithium (5 mg/kg). In conclusion, cannabinoids may have a dual effect on lithium-induced spatial memory impairment in rats.
Collapse
Affiliation(s)
- Salar Vaseghi
- Department of Physiology, Faculty of Veterinary Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Vahab Babapour
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad-Reza Zarrindast
- Department of Pharmacology School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Institute for Cognitive Science Studies (ICSS), Tehran, Iran.,Department of Neuroendocrinology, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
22
|
Wośko S, Serefko A, Szopa A, Wlaź P, Wróbel A, Wlaź A, Górska J, Poleszak E. CB 1 cannabinoid receptor ligands augment the antidepressant-like activity of biometals (magnesium and zinc) in the behavioural tests. ACTA ACUST UNITED AC 2018; 70:566-575. [PMID: 29380383 DOI: 10.1111/jphp.12880] [Citation(s) in RCA: 4] [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: 08/12/2017] [Accepted: 12/16/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVE During the last few decades, endocannabinoid system has emerged as a novel possible target for antidepressant treatment. Although the medical literature provides information on the mood-changing effects of CB1 ligands, little is known about the possible interaction between the simultaneous activation or inhibition of the CB1 receptor and administration of other agents that possess antidepressant potential. The main goal of our study was to evaluate the influence of the CB1 cannabinoid receptor ligands (oleamide - an endogenous agonist and AM251 - an inverse agonist/antagonist) on the antidepressant-like activity of biometals (i.e. magnesium and zinc). METHODS The forced swim test and the tail suspension test in mice were used to determine the antidepressant-like activity. KEY FINDINGS Concomitant intraperitoneal administration of per se inactive doses of oleamide (5 mg/kg) or AM251 (0.25 mg/kg) and the tested biometals (i.e. magnesium, 10 mg/kg or zinc, 5 mg/kg) shortened the immobility time of animals in the forced swim test and the tail suspension test. The observed effect was not associated with an increase in spontaneous locomotor activity of mice. CONCLUSIONS The simultaneous modulation of the cannabinoid system and supplementation of magnesium or zinc produce at least additive antidepressant-like effect.
Collapse
Affiliation(s)
- Sylwia Wośko
- Department of Applied Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Anna Serefko
- Department of Applied Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Aleksandra Szopa
- Department of Applied Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Piotr Wlaź
- Department of Animal Physiology, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - Andrzej Wróbel
- Second Department of Gynecology, Medical University of Lublin, Lublin, Poland
| | - Aleksandra Wlaź
- Department of Pathophysiology, Medical University of Lublin, Lublin, Poland
| | - Jolanta Górska
- Department of Applied Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Ewa Poleszak
- Department of Applied Pharmacy, Medical University of Lublin, Lublin, Poland
| |
Collapse
|
23
|
Komaki H, Saadat F, Shahidi S, Sarihi A, Hasanein P, Komaki A. The interactive role of CB1 receptors and L-type calcium channels in hippocampal long-term potentiation in rats. Brain Res Bull 2017; 131:168-175. [PMID: 28442324 DOI: 10.1016/j.brainresbull.2017.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 07/22/2016] [Revised: 02/03/2017] [Accepted: 04/19/2017] [Indexed: 01/22/2023]
Abstract
Long-term potentiation (LTP) of synaptic responses is a widely researched model of synaptic plasticity that occurs during learning and memory. The cannabinoid system is an endogenous system that modulate this kind of synaptic plasticity. In addition, voltage dependent calcium channels is essential for induction of LTP at some synapses in the hippocampus. However, there is currently debate over the interaction between L-type calcium channels and cannabinoid system on the synaptic plasticity. In this study, we examined the effects of an acute administration of the cannabinoid antagonist AM251 following a chronic administration of the Ca2+ channel blocker verapamil on LTP induction in the hippocampal dentate gyrus(DG) of rats. Male Wistar rats were administered verapamil(10,25,50mg/kg) or saline intraperitoneally(IP) daily for 13days(n=10/group). After this treatment period, animals were anesthetized with an IP injection of urethane; the recording and stimulating electrodes were positioned in the DG and the perforant pathway. After obtaining a steady state baseline response, a single IP injection of saline or AM251(1 or 5mg/kg) was administered. LTP was induced by high-frequency stimulation(HFS). The population spike(PS) amplitude and the slope of excitatory postsynaptic potentials(EPSP) were compared between the experimental groups. The acute administration of the CB1 antagonist AM251 increased LTP induction. The EPSP slopes and PS amplitude in the verapamil and AM251 groups differed after HFS, such that AM251 increased LTP, whereas verapamil decreased LTP induction. These findings suggest that there are functional interactions between the L-type calcium channels and cannabinoid system in this model of synaptic plasticity in the hippocampus.
Collapse
Affiliation(s)
- Hamidreza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Fargol Saadat
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Siamak Shahidi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abdolrahman Sarihi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Parisa Hasanein
- Department of Biology, School of Basic Sciences, Bu-Ali Sina University, Hamedan, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
| |
Collapse
|
24
|
Mohammadpour F, Ostad SN, Aliebrahimi S, Daman Z. Anti-invasion Effects of Cannabinoids Agonist and Antagonist on Human Breast Cancer Stem Cells. Iran J Pharm Res 2017; 16:1479-1486. [PMID: 29552056 PMCID: PMC5843309] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Studies show that cancer cell invasion or metastasis is the primary cause of death in malignancies including breast cancer. The existence of cancer stem cells (CSCs) in breast cancer may account for tumor initiation, progression, and metastasis. Recent studies have reported different effects of cannabinoids on cancer cells via CB1 and CB2 cannabinoid receptors. In the present study, the effects of ACEA (a selective CB1 receptor agonist) and AM251 (a selective CB1 antagonist) on CSCs and their parental cells were investigated. Breast CSCs derived from MDA-MB-231 cell line were sorted and characterized with CD44+/CD24-/low/ESA+ phenotype. It was observed that ACEA decreased CD44+/CD24-/low/ESA+ cancer stem cell invasiveness. Conversely, AM251 increased the invasion by more than 20% (at the highest concentrations) in both MDA-MB-231 and CSCs. Our results did not show any correlation between reduced invasion and cytotoxic effects of the drug. Since one of the main cancer recurrence factors is anti-cancer drugs fail to inhibit CSC population, this observation would be useful for cancer treatment.
Collapse
Affiliation(s)
- Fatemeh Mohammadpour
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Seyed Nasser Ostad
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran. ,Corresponding author: E-mail:
| | - Shima Aliebrahimi
- Department of Cellular and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Zahra Daman
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Poisoning Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
25
|
Wang J, Xu Y, Zou Y, Zhu L, Dong B, Huang J, Chen Y, Xue W, Huang Y, Kong W, Zhang J. Overexpression of cannabinoid receptor 1 promotes renal cell carcinoma progression. Tumour Biol 2016; 37:10.1007/s13277-016-5447-6. [PMID: 27757850 DOI: 10.1007/s13277-016-5447-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 05/05/2016] [Accepted: 09/23/2016] [Indexed: 12/26/2022] Open
Abstract
Renal cell carcinoma (RCC) is a common urologic tumor with a poor prognosis. Cannabinoid receptor 1 (CB1), which is a G protein-coupled receptor, has recently been reported to participate in the genesis and development of various cancers. However, the exact role of CB1 in RCC is unknown. The aim of this study was to determine the role of CB1 in RCC cell lines and RCC prognosis, thus underlying its potential as a therapeutic target. Immunohistochemistry and western blots were performed to investigate the expression of CB1 in RCC tissues and to determine its clinicopathological significance in RCC patients. Additionally, we explored CB1 expression in RCC cell lines and evaluated the effect of AM251, a CB1 inverse agonist, and in vitro siRNA knockdown of CB1 on the cellular proliferation, migration, and apoptosis of RCC cell lines. CB1 was overexpressed in cancerous tissues compared with adjacent normal tissues. Furthermore, CB1 expression levels were an independent risk factor for overall survival for RCC patients. AM251 significantly decreased tumor cell proliferation and induced cell apoptosis by upregulating the expression of the pro-apoptotic protein Bax and decreasing the expression of the anti-apoptotic proteins survivin and Bcl-2. Migration of the RCC cell lines was also significantly inhibited after treatment with AM251 compared with untreated control groups. In addition, knockdown of CB1 expression significantly decreased cell proliferation and invasion and significantly increased apoptosis of RCC cells. CB1 expression is functionally associated to cellular proliferation, apoptosis, and invasion ability of RCC. Our data suggest that CB1 might be a potential target for RCC clinical therapy.
Collapse
Affiliation(s)
- Jianfeng Wang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yunze Xu
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yun Zou
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Liangsong Zhu
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Baijun Dong
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jiwei Huang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yonghui Chen
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Wei Xue
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yiran Huang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Wen Kong
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
| | - Jin Zhang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
| |
Collapse
|
26
|
Medeiros P, de Freitas RL, Silva MO, Coimbra NC, Melo-Thomas L. CB1 cannabinoid receptor-mediated anandamide signaling mechanisms of the inferior colliculus modulate the haloperidol-induced catalepsy. Neuroscience 2016; 337:17-26. [PMID: 27595886 DOI: 10.1016/j.neuroscience.2016.08.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 11/03/2015] [Revised: 08/23/2016] [Accepted: 08/28/2016] [Indexed: 10/21/2022]
Abstract
The inferior colliculus (IC), a midbrain structure that processes acoustic information of aversive nature, is distinguished from other auditory nuclei in the brainstem by its connections with structures of the motor system. Previous evidence relating the IC to motor behavior shows that glutamatergic and GABAergic mechanisms in the IC exert influence on systemic haloperidol-induced catalepsy. There is substantial evidence supporting a role played by the endocannabinoid system as a modulator of the glutamatergic neurotransmission, as well as the dopaminergic activity in the basal nuclei and therefore it may be considered as a potential pharmacological target for the treatment of movement disorders. The present study evaluated if the endocannabinoid system in the IC plays a role in the elaboration of systemic haloperidol-induced catalepsy. Male Wistar rats received intracollicular microinjection of either the endogenous cannabinoid anandamide (AEA) at different concentrations (5, 50 or 100pmol/0.2μl), the CB1 cannabinoid receptor antagonist AM251 at 50, 100 or 200pmol/0.2μl or vehicle, followed by intraperitoneal (IP) administration of either haloperidol at 0.5 or 1mg/kg or physiological saline. Systemic injection of haloperidol at both doses (0.5 or 1mg/kg, IP) produced a cataleptic state, compared to vehicle/physiological saline-treated group, lasting 30 and 50min after systemic administration of the dopaminergic receptors non-selective antagonist. The midbrain microinjection of AEA at 50pmol/0.2μl increased the latency for stepping down from the horizontal bar after systemic administration of haloperidol. Moreover, the intracollicular administration of AEA at 50pmol/0.2μl was able to increase the duration of catalepsy as compared to AEA at 100pmol/0.2-μl-treated group. Intracollicular pretreatment with AM251 at the intermediate concentration (100pmol/0.2μl) was able to decrease the duration of catalepsy after systemic administration of haloperidol. However, neither the intracollicular microinjection of AM251 at the lowest (50pmol/0.2μl) nor at the highest (200pmol/0.2μl) concentration was able to block the systemic haloperidol-induced catalepsy. Furthermore, the intracollicular administration of AM251 at 100pmol/0.2μl was able to decrease the duration of catalepsy as compared to AM251 at 50pmol/0.2μl- and AM251 at 200pmol/0.2-μl-treated group. The latency for stepping down from the horizontal bar - induced by haloperidol administration - was decreased when microinjection of AEA at 50pmol/0.2μl was preceded with blockade of CB1 receptor with AM251 (100pmol/0.2μl). Our results strengthen the involvement of CB1-signaled endocannabinoid mechanisms of the IC in the neuromodulation of catalepsy induced by systemic administration of the dopaminergic receptors non-selective antagonist haloperidol.
Collapse
Affiliation(s)
- P Medeiros
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900 São Paulo, Brazil; Department of Neurocience and Behavioral Sciences, Division of Neurology, Post-Graduation Section, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil; Department of Biosciences, Federal University of São Paulo (UNIFESP), Av. D. Ana Costa, 95, Vila Mathias, Santos, São Paulo 11060-001, Brazil
| | - R L de Freitas
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900 São Paulo, Brazil; Neurobiology of Emotions Research Center (NAP-USP-NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900 São Paulo, Brazil; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil
| | - M O Silva
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900 São Paulo, Brazil; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil
| | - N C Coimbra
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900 São Paulo, Brazil; Neurobiology of Emotions Research Center (NAP-USP-NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900 São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Ribeirão Preto, 14050-220 São Paulo, Brazil; Department of Neurocience and Behavioral Sciences, Division of Neurology, Post-Graduation Section, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil.
| | - L Melo-Thomas
- Laboratory of Experimental and Physiological Psychology, Philipps-University of Marburg, Gutenbergstrasse 18, 35032 Marburg, Germany; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Ribeirão Preto, 14050-220 São Paulo, Brazil; Department of Biosciences, Federal University of São Paulo (UNIFESP), Av. D. Ana Costa, 95, Vila Mathias, Santos, São Paulo 11060-001, Brazil.
| |
Collapse
|
27
|
Tran S, Chatterjee D, Facciol A, Gerlai R. Concentration, population, and context-dependent effects of AM251 in zebrafish. Psychopharmacology (Berl) 2016; 233:1445-54. [PMID: 26883874 DOI: 10.1007/s00213-016-4240-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 11/08/2015] [Accepted: 02/07/2016] [Indexed: 01/03/2023]
Abstract
RATIONALE The function of the cannabinoid type 1 receptor (CB1-R) is poorly understood in zebrafish, and numerous inconsistent effects have been reported on it in the literature. OBJECTIVE The objective of the present study is to determine whether differences in the reported effects of CB1-R antagonism on anxiety-like behavioural responses, dopaminergic and serotonergic responses are due to concentration, context-dependent and/or population (genotype-related) effects. METHOD Two genetically distinct populations of zebrafish (AB and short fin (SF)) were treated with different concentrations of AM251 (0, 0.1, 1mg/L), and behavioural responses were quantified under two different contexts: one, following habituation and two, subsequently in a novel environment. The levels of dopamine, serotonin and their metabolites 3,4-dihydroxyindole acetic acid (DOPAC) and 5-hydroxyindoleacetic acid (5-HIAA) were quantified from whole-brain tissue. RESULTS We demonstrate that a 60-min exposure to AM251 (0, 0.1, 1mg/L) does not alter behavioural performance following habituation in either populations. However, when subsequently transferred to a novel environment, zebrafish that were pre-treated with the highest dose of AM251 (1mg/L) exhibited increased anxiety-like behavioural responses including elevated absolute turn angle, freezing and bottom dwelling. We found that exposure to the highest dose of AM251 (1mg/L) for 60min increased serotonin in fish of both populations tested. In contrast, exposure to 0.1mg/L AM251 decreased, whereas to 1mg/L AM251 increased dopamine, DOPAC and 5-HIAA in fish of both populations. CONCLUSION Our results demonstrate a genotype-independent effect of AM251 but imply that the inconsistent findings obtained after pharmacological blockade of CB1-Rs in zebrafish may be due to a combination of concentration- and environmental context-dependent effects.
Collapse
Affiliation(s)
- Steven Tran
- Department of Cell & Systems Biology, University of Toronto, 3359 Mississauga Road North, DV 1022D, Mississauga, Ontario, L5L 1C6, Canada.
| | - Diptendu Chatterjee
- Department of Psychology, University of Toronto Mississauga, 3359 Mississauga Road North, CC4004, Mississauga, Ontario, L5L 1C6, Canada
| | - Amanda Facciol
- Department of Psychology, University of Toronto Mississauga, 3359 Mississauga Road North, CC4004, Mississauga, Ontario, L5L 1C6, Canada
| | - Robert Gerlai
- Department of Cell & Systems Biology, University of Toronto, 3359 Mississauga Road North, DV 1022D, Mississauga, Ontario, L5L 1C6, Canada.
- Department of Psychology, University of Toronto Mississauga, 3359 Mississauga Road North, CC4004, Mississauga, Ontario, L5L 1C6, Canada.
| |
Collapse
|
28
|
Ruginsk SG, Vechiato FMV, Uchoa ET, Elias LLK, Antunes-Rodrigues J. Type 1 cannabinoid receptor modulates water deprivation-induced homeostatic responses. Am J Physiol Regul Integr Comp Physiol 2015; 309:R1358-68. [PMID: 26468265 DOI: 10.1152/ajpregu.00536.2014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 12/29/2014] [Accepted: 10/14/2015] [Indexed: 01/02/2023]
Abstract
The present study investigated the type 1 cannabinoid receptor (CB1R) as a potential candidate to mediate the homeostatic responses triggered by 24 h of water deprivation, which constitutes primarily a hydroelectrolytic challenge and also significantly impacts energy homeostasis. The present results demonstrated for the first time that CB1R mRNA expression is increased in the hypothalamus of water-deprived (WD) rats. Furthermore, the administration of ACEA, a CB1R selective agonist, potentiated WD-induced dipsogenic effect, whereas AM251, a CB1R antagonist, attenuated not only water but also salt intake in response to WD. In parallel with the modulation of thirst and salt appetite, we confirmed that CB1Rs are essential for the development of appropriated neuroendocrine responses. Although the administration of ACEA or AM251 did not produce any effects on WD-induced arginine vasopressin (AVP) secretion, oxytocin (OXT) plasma concentrations were significantly decreased in WD rats treated with ACEA. At the genomic level, ACEA significantly decreased AVP and OXT mRNA expression in the hypothalamus of WD rats, whereas AM251 potentiated both basal and WD-induced stimulatory effects on the transcription of AVP and OXT genes. In addition, we showed that water deprivation alone upregulated proopiomelanocortin, Agouti-related peptide, melanin-concentrating hormone, and orexin A mRNA levels in the hypothalamus, and that CB1Rs regulate main central peptidergic pathways controlling food intake, being that most of these effects were also significantly influenced by the hydration status. In conclusion, the present study demonstrated that CB1Rs participate in the homeostatic responses regulating fluid balance and energy homeostasis during water deprivation.
Collapse
Affiliation(s)
- Silvia G Ruginsk
- Department of Physiology, School of Medicine of Ribeirao Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil; Department of Physiological Sciences, Biomedical Sciences Institute, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil; and
| | - Fernanda M V Vechiato
- Department of Physiology, School of Medicine of Ribeirao Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Ernane T Uchoa
- Department of Physiology, School of Medicine of Ribeirao Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil; Department of Physiological Sciences, State University of Londrina, Londrina, Parana, Brazil
| | - Lucila L K Elias
- Department of Physiology, School of Medicine of Ribeirao Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Jose Antunes-Rodrigues
- Department of Physiology, School of Medicine of Ribeirao Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil;
| |
Collapse
|
29
|
Rabasa C, Pastor-Ciurana J, Delgado-Morales R, Gómez-Román A, Carrasco J, Gagliano H, García-Gutiérrez MS, Manzanares J, Armario A. Evidence against a critical role of CB1 receptors in adaptation of the hypothalamic-pituitary-adrenal axis and other consequences of daily repeated stress. Eur Neuropsychopharmacol 2015; 25:1248-59. [PMID: 26092203 DOI: 10.1016/j.euroneuro.2015.04.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 03/24/2015] [Accepted: 04/26/2015] [Indexed: 02/01/2023]
Abstract
There is evidence that endogenous cannabinoids (eCBs) play a role in the control of the hypothalamic-pituitary-adrenal (HPA) axis, although they appear to have dual, stimulatory and inhibitory, effects. Recent data in rats suggest that eCBs, acting through CB1 receptors (CB1R), may be involved in adaptation of the HPA axis to daily repeated stress. In the present study we analyze this issue in male mice and rats. Using a knock-out mice for the CB1 receptor (CB1-/-) we showed that mutant mice presented similar adrenocorticotropic hormone (ACTH) response to the first IMO as wild-type mice. Daily repeated exposure to 1h of immobilization reduced the ACTH response to the stressor, regardless of the genotype, demonstrating that adaptation occurred to the same extent in absence of CB1R. Prototypical changes observed after repeated stress such as enhanced corticotropin releasing factor (CRH) gene expression in the paraventricular nucleus of the hypothalamus, impaired body weight gain and reduced thymus weight were similarly observed in both genotypes. The lack of effect of CB1R in the expression of HPA adaptation to another similar stressor (restraint) was confirmed in wild-type CD1 mice by the lack of effect of the CB1R antagonist AM251 just before the last exposure to stress. Finally, the latter drug did not blunt the HPA, glucose and behavioral adaptation to daily repeated forced swim in rats. Thus, the present results indicate that CB1R is not critical for overall effects of daily repeated stress or proper adaptation of the HPA axis in mice and rats.
Collapse
|
30
|
Gaskari SA, Liu H, D'Mello C, Kunos G, Lee SS. Blunted cardiac response to hemorrhage in cirrhotic rats is mediated by local macrophage-released endocannabinoids. J Hepatol 2015; 62:1272-7. [PMID: 25640062 PMCID: PMC5045259 DOI: 10.1016/j.jhep.2015.01.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 04/03/2014] [Revised: 12/05/2014] [Accepted: 01/21/2015] [Indexed: 01/17/2023]
Abstract
BACKGROUND & AIMS Cirrhosis is associated with blunted cardiovascular response to stimuli such as hemorrhage, but the mechanism remains unclear. We aimed to clarify the role of endocannabinoids in blunted hemorrhage response in cirrhotic rats. METHODS Cirrhosis was induced by bile duct ligation (BDL). Hemodynamics were measured. Cannabinoid receptor-1 (CB1) antagonist, AM251, and macrophage inhibitor gadolinium chloride (GdCl3) were administered. Myocardial levels of anandamide (AEA) and 2-arachidonoyl glycerol (2-AG) were measured and resident monocytes and macrophages quantified by immunohistochemistry. Isolated cardiomyocyte contractility was measured before and after incubation with monocytes from BDL and sham controls. RESULTS Hemorrhage significantly decreased arterial pressure and left ventricular dP/dT. After hemorrhage, these changes quickly reversed in controls, but were severely prolonged in BDL rats. Chronic AM251 treatment restored this impaired response. AEA and 2-AG levels were increased in BDL hearts and further increased after hemorrhage. Sham hearts showed virtually no monocytes or macrophages before or after hemorrhage, whereas BDL hearts had significantly more white blood cells which further increased after hemorrhage. GdCl3 treatment significantly reduced cardiac endocannabinoid levels both at baseline and after hemorrhage. This treatment also restored cardiovascular response to hemorrhage in BDL rats but did not affect sham controls. Monocytes isolated from BDL rats more potently inhibited cardiomyocyte contractility than sham control monocytes. CONCLUSIONS The cirrhotic heart showed increased monocyte recruitment and endocannabinoid levels. CB1 blockade or GdCl3 treatment restored blunted cardiovascular response to hemorrhage. Endocannabinoids released by monocytes blunt cardiac response to hemorrhage. Preventing monocyte recruitment or blocking endocannabinoid signaling may improve cardiovascular homeostasis in cirrhosis.
Collapse
Affiliation(s)
| | - Hongqun Liu
- Liver Unit, University of Calgary, Calgary, Canada
| | | | - George Kunos
- Laboratory of Physiologic Studies, National Institute of Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Samuel S Lee
- Liver Unit, University of Calgary, Calgary, Canada.
| |
Collapse
|
31
|
Nasehi M, Amin-Yavari S, Ebrahimi-Ghiri M, Torabi-Nami M, Zarrindast MR. The dual effect of CA1 NMDA receptor modulation on ACPA-induced amnesia in step-down passive avoidance learning task. Eur Neuropsychopharmacol 2015; 25:557-65. [PMID: 25680309 DOI: 10.1016/j.euroneuro.2015.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 12/30/2014] [Accepted: 01/09/2015] [Indexed: 02/01/2023]
Abstract
It is well documented that cannabinoids play an important role in certain hippocampal memory processes in rodents. On the other hand, N-Methyl-d-aspartate receptors (NMDARs) mediate the synaptic plasticity related to learning and memory processes which take place in the hippocampus. Such insights prompted us to investigate the influence of dorsal hippocampal (CA1) NMDA receptor agents on amnesia induced by cannabinoid CB1 receptor agonist, arachidonylcyclopropylamide (ACPA) in male mice. One-trial step-down passive avoidance and hole-board apparatuses were used to examine the memory retrieval and exploratory behaviors, respectively. Based on our findings, pre-training intraperitoneal (i.p.) administration of ACPA (0.01mg/kg) decreased memory acquisition. Moreover, pre-training intra-CA1 infusion of NMDA (0.001, 0.0125, 0.025 and 0.2µg/mouse), d-AP7 (0.5 and 1µg/mouse) or AM251 (50ng/mouse) impaired the memory acquisition. Meanwhile, NMDA-treated animals at the doses of 0.0005, 0.05 and 0.1µg/mouse acquired memory formation. In addition, intra-CA1 microinjection of NMDA (0.0005) plus different doses of ACPA potentiated the ACPA response, while NMDA (0.1) plus the lower or the higher dose of ACPA potentiated or restored the ACPA response, respectively. Further investigation revealed that a subthreshold dose of d-AP7 could potentiate the memory acquisition impairment induced by ACPA. Moreover, the subthreshold dose of AM251 did not alter the ACPA response, while the effective dose of the drug restored the memory acquisition impairment induced by ACPA. According to these results, we concluded that activation of the NMDA receptors in the CA1 mediates a dual effect on ACPA-induced amnesia in step-down passive avoidance learning task.
Collapse
|
32
|
Füllhase C, Schreiber A, Giese A, Schmidt M, Montorsi F, Gratzke C, La Croce G, Castiglione F, Stief C, Hedlund P. Spinal neuronal cannabinoid receptors mediate urodynamic effects of systemic fatty acid amide hydrolase (FAAH) inhibition in rats. Neurourol Urodyn 2015; 35:464-70. [PMID: 25788026 DOI: 10.1002/nau.22753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 11/24/2014] [Accepted: 01/21/2015] [Indexed: 01/28/2023]
Abstract
AIMS To test if urodynamic effects from systemic Fatty Acid Amide Hydrolase (FAAH) inhibition involve sacral spinal cannabinoid type 1 (CB1) or type 2 (CB2) receptors. METHODS Male rats with or without partial urethral obstruction were used for cystometry or immunohistochemistry. Urodynamic effects of intravenous (IV) 0.3 mg/kg Oleoyl Ethyl Amide (OEtA; FAAH inhibitor), and intrathecal (IT) 5 μg rimonabant (CB1 antagonist) or 5 μg SR144528 (CB2 antagonist) were studied in awake rats. RESULTS After administration of rimonabant or SR144528, non-obstructed rats with normal bladder function developed bladder overactivity (BO), which was counteracted by OEtA. OEtA also counteracted BO in obstructed rats. SR144528 did not affect bladder function in obstructed rats but counteracted the urodynamic effects of OEtA. Surprisingly, rimonabant (and AM251, another CB1 antagonist) reduced BO in obstructed rats, whereafter OEtA produced no additional urodynamic effects. CB1 expression increased in the sacral spinal cord of obstructed rats whereas no changes were observed for CB2 or FAAH. CONCLUSIONS Urodynamic effects of systemic FAAH inhibition involve activities at spinal neuronal CB1 and CB2 receptors in normal and obstructed rats. Endogenous spinal CB receptor ligands seem to regulate normal micturition and BO. Altered spinal CB receptor functions may be involved in the pathogenesis of obstruction-induced BO. Neurourol. Urodynam. 35:464-470, 2016. © 2015 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Claudius Füllhase
- Department of Urology, University of Rostock, Rostock, Germany.,Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Andrea Schreiber
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-University, Munich, Germany.,Department of Urology, Ludwig-Maximilians-University, Munich, Germany
| | - Armin Giese
- Center for Neuropathology and Prion Research, Ludwig-Maximilians-University, Munich, Germany
| | - Michael Schmidt
- Department of Urology, Ludwig-Maximilians-University, Munich, Germany
| | - Francesco Montorsi
- Division of Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy.,Universita Vita San Raffaele, Milan, Italy
| | - Christian Gratzke
- Department of Urology, Ludwig-Maximilians-University, Munich, Germany
| | - Giovanni La Croce
- Division of Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy.,Department of Clinical and Experimental Pharmacology, Lund University, Lund, Sweden
| | - Fabio Castiglione
- Universita Vita San Raffaele, Milan, Italy.,Department of Clinical and Experimental Pharmacology, Lund University, Lund, Sweden
| | - Christian Stief
- Department of Urology, Ludwig-Maximilians-University, Munich, Germany
| | - Petter Hedlund
- Division of Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy.,Department of Clinical Pharmacology, Linköping University, Linköping, Sweden
| |
Collapse
|
33
|
Shubina L, Aliev R, Kitchigina V. Attenuation of kainic acid-induced status epilepticus by inhibition of endocannabinoid transport and degradation in guinea pigs. Epilepsy Res 2015; 111:33-44. [PMID: 25769371 DOI: 10.1016/j.eplepsyres.2015.01.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 11/26/2014] [Accepted: 01/14/2015] [Indexed: 02/08/2023]
Abstract
Status epilepticus (SE) is a medical emergency associated with a high rate of mortality if not treated promptly. Exogenous and endogenous cannabinoids have been shown to possess anticonvulsant properties both in vivo and in vitro. Here we study the influence of endocannabinoid metabolism on the development of kainic acid-induced SE in guinea pigs. For this purpose, the inhibitors of endocannabinoid transport, AM404, and enzymatic (fatty acid amide hydrolase) degradation, URB597, were applied. Cannabinoid CB1 receptor antagonist, AM251, was also tested. Animal behavior as well as local electric field potentials in four structures: medial septum, hippocampus, entorhinal cortex and amygdala were analyzed when AM404 (120nmol), URB597 (4.8nmol) or AM251 (20nmol) were administrated alone or together with 0.4μg of kainic acid. All substances were injected i.c.v. AM404, URB597 or AM251 administered alone did not alter markedly local field potentials of all four studied structures in the long-term compared with their basal activity. AM404 and URB597 significantly alleviated kainic acid-induced SE, decreasing behavioral manifestations, duration of seizure events and SE in general without changing the amplitude of local field potentials. AM251 did not produce distinct effects on SE in terms of our experimental paradigm. There was no apparent change of the seizure initiation pattern when kainic acid was coadministrated with AM404, URB597 or AM251. The present study provides electrophysiologic and behavioral evidences that inhibition of endocannabinoid metabolism plays a protective role against kainic acid-induced SE and may be employed for therapeutic purposes. Further investigations of the influences of cannabinoid-related compounds on SE genesis and especially epileptogenesis are required.
Collapse
|
34
|
Fišar Z, Singh N, Hroudová J. Cannabinoid-induced changes in respiration of brain mitochondria. Toxicol Lett 2014; 231:62-71. [PMID: 25195527 DOI: 10.1016/j.toxlet.2014.09.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [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: 06/18/2014] [Revised: 08/31/2014] [Accepted: 09/03/2014] [Indexed: 02/06/2023]
Abstract
Cannabinoids exert various biological effects that are either receptor-mediated or independent of receptor signaling. Mitochondrial effects of cannabinoids were interpreted either as non-receptor-mediated alteration of mitochondrial membranes, or as indirect consequences of activation of plasma membrane type 1 cannabinoid receptors (CB1). Recently, CB1 receptors were confirmed to be localized to the membranes of neuronal mitochondria, where their activation directly regulates respiration and energy production. Here, we performed in-depth analysis of cannabinoid-induced changes of mitochondrial respiration using both an antagonist/inverse agonist of CB1 receptors, AM251 and the cannabinoid receptor agonists, Δ(9)-tetrahydrocannabinol (THC), cannabidiol, anandamide, and WIN 55,212-2. Relationships were determined between cannabinoid concentration and respiratory rate driven by substrates of complex I, II or IV in pig brain mitochondria. Either full or partial inhibition of respiratory rate was found for the tested drugs, with an IC50 in the micromolar range, which verified the significant role of non-receptor-mediated mechanism in inhibiting mitochondrial respiration. Effect of stepwise application of THC and AM251 evidenced protective role of AM251 and corroborated the participation of CB1 receptor activation in the inhibition of mitochondrial respiration. We proposed a model, which includes both receptor- and non-receptor-mediated mechanisms of cannabinoid action on mitochondrial respiration. This model explains both the inhibitory effect of cannabinoids and the protective effect of the CB1 receptor inverse agonist.
Collapse
Affiliation(s)
- Zdeněk Fišar
- Department of Psychiatry, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Ke Karlovu 11, Prague 2 120 00, Czech Republic.
| | - Namrata Singh
- Department of Psychiatry, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Ke Karlovu 11, Prague 2 120 00, Czech Republic.
| | - Jana Hroudová
- Department of Psychiatry, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Ke Karlovu 11, Prague 2 120 00, Czech Republic.
| |
Collapse
|
35
|
Laricchiuta D, Musella A, Rossi S, Centonze D. Behavioral and electrophysiological effects of endocannabinoid and dopaminergic systems on salient stimuli. Front Behav Neurosci 2014; 8:183. [PMID: 24904335 PMCID: PMC4032909 DOI: 10.3389/fnbeh.2014.00183] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 02/04/2014] [Accepted: 05/04/2014] [Indexed: 01/23/2023] Open
Abstract
Rewarding effects have been related to enhanced dopamine (DA) release in corticolimbic and basal ganglia structures. The DAergic and endocannabinoid interaction in the responses to reward is described. This study investigated the link between endocannabinoid and DAergic transmission in the processes that are related to response to two types of reward, palatable food and novelty. Mice treated with drugs acting on endocannabinoid system (ECS) (URB597, AM251) or DAergic system (haloperidol) were submitted to approach-avoidance conflict tasks with palatable food or novelty. In the same mice, the cannabinoid type-1 (CB1)-mediated GABAergic transmission in medium spiny neurons of the dorsomedial striatum was analyzed. The endocannabinoid potentiation by URB597 magnified approach behavior for reward (food and novelty) and in parallel inhibited dorsostriatal GABAergic neurotransmission. The decreased activity of CB1 receptor by AM251 (alone or with URB597) or of DAergic D2 receptor by haloperidol had inhibitory effects toward the reward and did not permit the inhibition of dorsostriatal GABAergic transmission. When haloperidol was coadministered with URB597, a restoration effect on reward and reward-dependent motor activity was observed, only if the reward was the palatable food. In parallel, the coadministration led to restoring inhibition of CB1-mediated GABAergic transmission. Thus, in the presence of simultaneous ECS activation and inhibition of DAergic system the response to reward appears to be a stimulus-dependent manner.
Collapse
Affiliation(s)
- Daniela Laricchiuta
- IRCCS Fondazione Santa Lucia Rome, Italy ; Dipartimento di Psicologia, Facoltà di Medicina e Psicologia, Università "Sapienza" di Roma Rome, Italy
| | - Alessandra Musella
- IRCCS Fondazione Santa Lucia Rome, Italy ; Dipartimento di Neuroscienze, Università Tor Vergata Rome, Italy
| | - Silvia Rossi
- IRCCS Fondazione Santa Lucia Rome, Italy ; Dipartimento di Neuroscienze, Università Tor Vergata Rome, Italy
| | - Diego Centonze
- IRCCS Fondazione Santa Lucia Rome, Italy ; Dipartimento di Neuroscienze, Università Tor Vergata Rome, Italy
| |
Collapse
|
36
|
Ferreira-Vieira TH, Bastos CP, Pereira GS, Moreira FA, Massensini AR. A role for the endocannabinoid system in exercise-induced spatial memory enhancement in mice. Hippocampus 2013; 24:79-88. [PMID: 24115292 DOI: 10.1002/hipo.22206] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2013] [Indexed: 01/22/2023]
Abstract
It is well known that physical exercise has positive effects on cognitive functions and hippocampal plasticity. However, the underlying mechanisms have remained to be further investigated. Here we investigated the hypothesis that the memory-enhancement promoted by physical exercise relies on facilitation of the endocannabinoid system. We observed that the spatial memory tested in the object location paradigm did not persist in sedentary mice, but could be improved by 1 week of treadmill running. In addition, exercise up-regulated CB1 receptor and BDNF expression in the hippocampus. To verify if these changes required CB1 activation, we treated the mice with the selective antagonist, AM251, before each period of physical activity. In line with our hypothesis, this drug prevented the exercise-induced memory enhancement and BDNF expression. Furthermore, AM251 reduced CB1 expression. To test if facilitating the endocannabinoid system signaling would mimic the alterations observed after exercise, we treated sedentary animals during 1 week with the anandamide-hydrolysis inhibitor, URB597. Mice treated with this drug recognized the object in a new location and have increased levels of CB1 and BDNF expression in the hippocampus, showing that potentiating the endocanabinoid system equally benefits memory. In conclusion, the favorable effects of exercise upon spatial memory and BDNF expression depend on facilitation of CB1 receptor signaling, which can be mimic by inhibition of anandamide hydrolysis in sedentary animals. Our results suggest that, at least in part, the promnesic effect of the exercise is dependent of CB1 receptor activation and is mediated by BDNF.
Collapse
Affiliation(s)
- Talita H Ferreira-Vieira
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | | | | | | |
Collapse
|
37
|
Hernandez G, Bernstein D, Schoenbaum G, Cheer JF. Contrasting Effects of Lithium Chloride and CB1 Receptor Blockade on Enduring Changes in the Valuation of Reward. Front Behav Neurosci 2011; 5:53. [PMID: 21922005 PMCID: PMC3167146 DOI: 10.3389/fnbeh.2011.00053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [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: 07/14/2011] [Accepted: 08/13/2011] [Indexed: 01/16/2023] Open
Abstract
When an organism responds for a reward, its learned behavior can be characterized as goal-directed or habitual based on whether or not it is susceptible to reward devaluation. Here, we evaluated whether instrumental responding for brain stimulation reward (BSR) can be devalued using a paradigm traditionally used for natural rewards. Rats were trained to lever press for BSR; afterward, BSR was paired with either lithium chloride (LiCl, 5 mg/kg, i.p.), a pro-emetic, or AM251, a CB1 receptor antagonist (3 mg/kg, i.p.) or the vehicle of these compounds. Pairings of BSR with these compounds and their vehicles were performed in a novel environment so that only unconditional effects of BSR would be affected by the pharmacological manipulations. Subsequently, in a probe test, all rats were returned in the drug-free state to the boxes where they had received training and instrumental responding was reassessed in the absence of BSR delivery. When compared to control, LiCl produced a significant decrease in the number of responses during the test session, whereas AM251 did not. These results show that instrumental responding for BSR is susceptible to devaluation, in accord with the proposal that this behavior is supported at least in part by associations between the response and the rewarding outcome. Further, they suggest that reward modulation observed in studies involving the use of CB1 receptor antagonists arises from changes in the organism’s motivation rather than drug-induced changes in the intrinsic value of reward.
Collapse
|
38
|
Moghaddam HF, Khodayar MJ, Abarghouei SMZ, Ardestani MS. Evaluation of the role of striatal cannabinoid CB1 receptors on movement activity of parkinsonian rats induced by reserpine. Saudi Pharm J 2010; 18:207-15. [PMID: 23960729 PMCID: PMC3730975 DOI: 10.1016/j.jsps.2010.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 02/24/2010] [Accepted: 04/28/2010] [Indexed: 10/18/2022] Open
Abstract
It has been observed cannabinoid CB1 receptor signalling and the levels of endocannabinoid ligands significantly increased in the basal ganglia and cerebrospinal fluids of Parkinson's disease (PD) patients. These evidences suggest that the blocking of cannabinoid CB1 receptors might be beneficial to improve movement disorders as a sign of PD. In this study, a dose-response study of the effects of intrastriatal injection of a cannabinoid CB1 receptor antagonist, AM251 and agonist, ACPA, on movement activity was performed by measuring the catalepsy of reserpinized and non-PD (normal) rats with bar test. Also the effect of co-administration the most effective dose of AM251 and several doses of ACPA were assessed. AM251 decreases the reserpine induced catalepsy in dose dependent manner and ACPA causes catalepsy in normal rats in dose dependant manner as well. AM251 significantly reverse the cataleptic effect in all three groups (1, 10, 100 ng/rat) that received ACPA. These results support this theory that cannabinoid CB1 receptor antagonists might be useful to alleviate movement disorder in PD. Also continuance of ACPA induced catalepsy in rats after AM251 injection can indicate that other neurotransmitters or receptors interfere in ACPA induced catalepsy. Based on the present finding there is an incomplete overlapping between cannabinoid CB1 receptor agonist and antagonist effects.
Collapse
Affiliation(s)
- Hadi Fathi Moghaddam
- Department of Physiology, School of Medicine & Physiology Research Center, Ahvaz Jondishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Javad Khodayar
- Department of Pharmacology and Toxicology, School of Pharmacy, Ahvaz Jondishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Mehdi Shafiee Ardestani
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Research & Development Division and Hepatitis B Department, Production & Research Complex, Pasteur Institute of Iran, Tehran, Iran
| |
Collapse
|