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Clarke TL, Johnson RL, Simone JJ, Carlone RL. The Endocannabinoid System and Invertebrate Neurodevelopment and Regeneration. Int J Mol Sci 2021; 22:2103. [PMID: 33672634 PMCID: PMC7924210 DOI: 10.3390/ijms22042103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/12/2021] [Accepted: 02/17/2021] [Indexed: 12/17/2022] Open
Abstract
Cannabis has long been used for its medicinal and psychoactive properties. With the relatively new adoption of formal medicinal cannabis regulations worldwide, the study of cannabinoids, both endogenous and exogenous, has similarly flourished in more recent decades. In particular, research investigating the role of cannabinoids in regeneration and neurodevelopment has yielded promising results in vertebrate models. However, regeneration-competent vertebrates are few, whereas a myriad of invertebrate species have been established as superb models for regeneration. As such, this review aims to provide a comprehensive summary of the endocannabinoid system, with a focus on current advances in the area of endocannabinoid system contributions to invertebrate neurodevelopment and regeneration.
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Affiliation(s)
- Tristyn L. Clarke
- Department of Biological Sciences, Brock University, 1812 Sir Isaac brock Way, St. Catharines, ON L2S 3A1, Canada; (T.L.C.); (R.L.J.); (J.J.S.)
| | - Rachael L. Johnson
- Department of Biological Sciences, Brock University, 1812 Sir Isaac brock Way, St. Catharines, ON L2S 3A1, Canada; (T.L.C.); (R.L.J.); (J.J.S.)
| | - Jonathan J. Simone
- Department of Biological Sciences, Brock University, 1812 Sir Isaac brock Way, St. Catharines, ON L2S 3A1, Canada; (T.L.C.); (R.L.J.); (J.J.S.)
- Centre for Neuroscience, Brock University, 1812 Sir Isaac brock Way, St. Catharines, ON L2S 3A1, Canada
- eCB Consulting Inc., P.O. Box 652, 3 Cameron St. W., Cannington, ON L2S 3A1, Canada
| | - Robert L. Carlone
- Department of Biological Sciences, Brock University, 1812 Sir Isaac brock Way, St. Catharines, ON L2S 3A1, Canada; (T.L.C.); (R.L.J.); (J.J.S.)
- Centre for Neuroscience, Brock University, 1812 Sir Isaac brock Way, St. Catharines, ON L2S 3A1, Canada
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Chanas-Larue A, Villalpando-Rodriguez GE, Henson ES, Johnston JB, Gibson SB. Antihistamines are synergistic with Bruton's tyrosine kinase inhibiter ibrutinib mediated by lysosome disruption in chronic lymphocytic leukemia (CLL) cells. Leuk Res 2020; 96:106423. [PMID: 32712432 DOI: 10.1016/j.leukres.2020.106423] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 06/30/2020] [Accepted: 07/12/2020] [Indexed: 12/14/2022]
Abstract
Lysosomes in chronic lymphocytic leukemia (CLL) cells have previously been identified as a promising target for therapeutic intervention in combination with targeted therapies. Recent studies have shown that antihistamines can induce lysosomal membrane permeabilization (LMP) in a variety of cell lines. Furthermore, our previous data indicates that lysosomotropic agents can cause synergistic cell death in vitro when combined with some tyrosine kinase inhibitors (TKI). In the current study, we have shown that three over-the-counter antihistamines, clemastine, desloratadine, and loratadine, preferentially induce cell death via LMP in CLL cells, as compared to normal lymphocytes. We treated primary CLL cells with antihistamines and found clemastine was the most effective at inducing LMP and cell death. More importantly, the antihistamines induced synergistic cytotoxicity when combined with the tyrosine kinase inhibitor, ibrutinib, but not with chemotherapy. Moreover, the synergy between clemastine and ibrutinib was associated with the induction of reactive oxygen species (ROS), loss of mitochondrial membrane potential and decreased Mcl-1 expression leading to apoptosis. This study proposes a potential novel treatment strategy for CLL, repurposing FDA-approved allergy medications in combination with the targeted therapy ibrutinib to enhance drug efficacy.
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Affiliation(s)
- Aaron Chanas-Larue
- Research Institute of Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada; Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Gloria E Villalpando-Rodriguez
- Research Institute of Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada; Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Elizabeth S Henson
- Research Institute of Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada; Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - James B Johnston
- Research Institute of Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada; Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Spencer B Gibson
- Research Institute of Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada; Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada; Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada.
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Young JW, Roberts BZ, Breier M, Swerdlow NR. Amphetamine improves rat 5-choice continuous performance test (5C-CPT) irrespective of concurrent low-dose haloperidol treatment. Psychopharmacology (Berl) 2020; 237:1959-1972. [PMID: 32318751 DOI: 10.1007/s00213-020-05511-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 03/26/2020] [Indexed: 12/22/2022]
Abstract
RATIONALE Cognitive dysfunction mediates functional impairment in patients with schizophrenia, necessitating the timely development of pro-cognitive therapeutics. An important initial step in this process is to establish what, if any, pro-cognitive agents and associated mechanisms can be identified using cross-species translational paradigms. For example, attentional deficits-a core feature of schizophrenia-can be measured across species using the 5-choice continuous performance test (5C-CPT). The psychostimulant, amphetamine, improves human and rodent 5C-CPT performance. OBJECTIVE Here, we tested whether amphetamine would similarly improve 5C-CPT performance in the presence of dopamine D2 receptor blockade, since pro-cognitive treatments in schizophrenia would virtually always be used in conjunction with D2 receptor antagonists. METHODS We established the dose-response effects of amphetamine (0, 0.1, 0.3, or 1.0 mg/kg) and haloperidol (0, 3.2, 10, or 32 μg/kg) on 5C-CPT performance in Long Evans rats, and then tested an amphetamine (0.3 mg/kg) × haloperidol (10 μg/kg) interaction; the low dose was chosen because higher doses exerted deleterious non-specific effects on performance. RESULTS Amphetamine improved 5C-CPT performance in poorly performing rats by increasing target detection, independent of haloperidol pretreatment. CONCLUSIONS The pro-attentional effects of amphetamine were most likely mediated by dopamine release at D1-family receptors, since they persisted in the presence of acute D2 blockade. Alternative explanations for these findings are also discussed, as are their potential implications for future pro-cognitive therapeutics in schizophrenia.
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Affiliation(s)
- Jared W Young
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, USA. .,Research Service, VA San Diego Healthcare System, San Diego, CA, USA.
| | - Benjamin Z Roberts
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, USA
| | - Michelle Breier
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, USA
| | - Neal R Swerdlow
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, USA
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Huang RY, Pei L, Liu Q, Chen S, Dou H, Shu G, Yuan ZX, Lin J, Peng G, Zhang W, Fu H. Isobologram Analysis: A Comprehensive Review of Methodology and Current Research. Front Pharmacol 2019; 10:1222. [PMID: 31736746 PMCID: PMC6830115 DOI: 10.3389/fphar.2019.01222] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 09/23/2019] [Indexed: 01/12/2023] Open
Abstract
Drug combination is a common method for clinical disease treatment. Whether the combination of drugs is reasonable often affects the result of the disease treatment. Many methods have been used to evaluate interaction between drugs to date. Isobologram analysis has been mathematically proven and widely used to evaluate drug interactions. In this paper, the principle of isobologram analysis and its application in drug interaction evaluation are summarized. The applications of the similar cotoxicity coefficient and fractional inhibitory concentration index in the evaluation of drug interaction are also reviewed. This work is expected to evaluate the effect of formulations scientifically and provide scientific judgment standards for the development of formulations and clinical drug compatibility.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Hualin Fu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agriculture University, Chengdu, China
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Lamarre NS, Raffa RB, Tallarida RJ. Cocaine synergism with α agonists in rat aorta: computational analysis reveals an action beyond reuptake inhibition. Drug Alcohol Depend 2013; 129:226-31. [PMID: 23270987 PMCID: PMC3612562 DOI: 10.1016/j.drugalcdep.2012.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 11/26/2012] [Accepted: 11/28/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Cocaine has long been known to increase blood pressure, but the degree and mechanism of vasoconstricting action remain poorly understood. Here we examine the interaction between cocaine and alpha-adrenoceptor agonists, with the action of reuptake inhibition minimized. METHODS Cocaine was administered to isolated rings of rat thoracic aorta, alone and in combination with three different adrenoceptor agonists: phenylephrine, methoxamine, and norepinephrine. Synergy analysis begins with the predicted additive effect of the combination of two agonists, based upon dose equivalence theory. This case where one agonist (cocaine) has no effect when administered alone requires only a t-test to demonstrate that a departure from additivity has occurred. RESULTS At doses where cocaine alone produced no vasoconstriction, it potentiated the vasoconstriction produced by all three alpha agonists, a clear indication of synergism between cocaine and these agents. Higher doses of cocaine in combination with alpha adrenoceptor agents gave an inverted-U shaped (hormetic) dose-effect curve, i.e., dose-related relaxation at higher doses. The hormetic dose-effect relation was analyzed using computational methodology based on dose equivalence to derive the unknown second component of action that causes relaxation. CONCLUSIONS Cocaine exhibits both vasoconstricting and vasorelaxant effects. This relaxing component, possibly related to activation of myosin light chain phosphatase, was quantified as a dose-effect curve. Most important is the synergism between cocaine and alpha-adrenoceptor stimulation which cannot be explained as an action due to reuptake inhibition, and has not been previously described.
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Affiliation(s)
- Neil S. Lamarre
- Temple University School of Medicine, Department of Pharmacology and Center for Substance Abuse Research, 3500 N. Broad St, Room 855, Philadelphia, PA 19140
| | - Robert B. Raffa
- Temple University School of Pharmacy, 3307 N. Broad Street, Philadelphia, PA 19140, USA
| | - Ronald J. Tallarida
- Temple University School of Medicine, Department of Pharmacology and Center for Substance Abuse Research, 3500 N. Broad St, Room 855, Philadelphia, PA 19140,Corresponding author: , telephone: 215-707-3243, fax: 215-707-6661
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Tallarida RJ, Midic U, Lamarre NS, Obradovic Z. A search for interaction among combinations of drugs of abuse and the use of isobolographic analysis. J Clin Pharm Ther 2013; 38:190-5. [PMID: 23550787 DOI: 10.1111/jcpt.12055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 02/18/2013] [Indexed: 11/29/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Individuals who abuse drugs usually use more than one substance. Toxic consequences of single and multi-drug use are well documented in the Treatment Episodes Data Set that lists drug combinations that result in hospital admissions. Using this list as a guide, we focused our attention on combinations that result in the most hospital admissions and searched the PubMed database with the objective of determining the number of such publications and, in particular, those that used the term synergism in their titles or abstracts. COMMENT Using the search criteria produced an extensive list of published articles. However, a further intersection of the search terms with the term isobole revealed a surprisingly small number of literature reports. WHAT IS NEW AND CONCLUSION Because the method of isoboles is the most common quantitative method for distinguishing between drug synergism and simple additivity, the small number of investigations that actually employed this quantification suggests that the term synergism is not properly documented in describing the toxicity among abused substances. The possible reasons for this lack of quantification may be related to a misunderstanding of the modelling equations. To help rectify this possible hurdle to understanding and clinical utility, the theory and modelling are discussed here.
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Affiliation(s)
- R J Tallarida
- Department of Pharmacology and Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, PA, USA.
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Buttarelli FR, Pellicano C, Pontieri FE. Neuropharmacology and behavior in planarians: translations to mammals. Comp Biochem Physiol C Toxicol Pharmacol 2008; 147:399-408. [PMID: 18294919 DOI: 10.1016/j.cbpc.2008.01.009] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2007] [Revised: 01/16/2008] [Accepted: 01/16/2008] [Indexed: 11/25/2022]
Abstract
Planarians are the simplest animals to exhibit a body plan common to all vertebrates and many invertebrates, characterized by bilateral rather than radial symmetry, dorsal and ventral surfaces, and a rostrocaudal axis with a head and a tail, including specialized sense organs and an aggregate of nerve cells in the head. Neurons in planarian more closely resemble those of vertebrates than those of advanced invertebrates, exhibiting typical vertebrate features of multipolar shape, dendritic spines with synaptic boutons, a single axon, expression of vertebrate-like neural proteins, and relatively low spontaneously generated electrical activity. Here we report the most relevant contribution to the knowledge of the neuropharmacology of planarians, with particular reference to the behavioral consequences of the exposure to drugs acting on neural transmission. Neurochemical and histochemical data indicate the presence of several neurotransmitter-receptor systems in planarians. Moreover, a variety of experimental studies characterized specific behavioral patterns of these animals following the exposure to drugs acting on neural transmission. There is also evidence of the interactions between discrete neurotransmitter-receptor systems in modulating behavior in planarians. Finally, the model has proved efficacy for investigating the neurotoxicology of the dopamine neurons, and for the initial screening of the neuroprotective potential of drugs. In conclusion, these findings indicate that interactions between discrete neurotransmitter-receptor systems occur very early along phylogeny, although they may have evolved from very fundamental behaviors, such as motor activity in planarian, to more complex and integrated functions in vertebrates.
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Raffa RB, Stagliano GW, Ross G, Powell JA, Phillips AG, Ding Z, Rawls SM. The kappa-opioid receptor antagonist nor-BNI inhibits cocaine and amphetamine, but not cannabinoid (WIN 52212-2), abstinence-induced withdrawal in planarians: an instance of 'pharmacologic congruence'. Brain Res 2007; 1193:51-6. [PMID: 18178175 DOI: 10.1016/j.brainres.2007.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2007] [Accepted: 12/03/2007] [Indexed: 10/22/2022]
Abstract
The broad applicability of receptor theory to diverse species, from invertebrates to mammals, provides evidence for the evolution in complexity of pharmacologic receptor diversification and of receptor-effector signal transduction mechanisms. However, pre-mammalian species have less receptor subtype differentiation, and thus, might share signal transduction pathways to a greater extent than do mammals, a phenomenon that we term 'pharmacologic congruence'. We have demonstrated previously that the lowest species considered to have a centralized nervous system, planarians, display both abstinence-induced and antagonist-precipitated withdrawal signs, indicative of the development of physical dependence. We report here: (1) amphetamine abstinence-induced withdrawal, and (2) the attenuation of cocaine and amphetamine, but not cannabinoid agonist (WIN 52212-2), abstinence-induced withdrawal by the opioid receptor antagonist naloxone and by the selective kappa-opioid receptor subtype antagonist nor-BNI (nor-Binaltorphimine), but not by the selective mu-opioid or the delta-opioid receptor subtype antagonists CTAP (D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH(2)) and naltrindole. These results provide evidence that the withdrawal from cocaine and amphetamine, but not cannabinoids, in planarians is mediated through a common nor-BNI-sensitive (kappa-opioid receptor-like) pathway.
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Affiliation(s)
- Robert B Raffa
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, 3307 N. Broad Street, Philadelphia, PA 19140, USA.
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