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Vettorato E, Fiordelisi M, Ferro S, Zanin D, Franceschinis E, Marzaro G, Realdon N. Deformable Vesicles with Edge Activators for the Transdermal Delivery of Non-Psychoactive Cannabinoids. Curr Pharm Des 2024; 30:921-934. [PMID: 38482628 DOI: 10.2174/0113816128289593240226071813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/22/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND Transdermal delivery of highly lipophilic molecules is challenging due to the strong barrier function of the skin. Vesicles with penetration enhancers are safe and efficient systems that could improve the transdermal delivery of non-psychoactive cannabinoids such as cannabidiol and desoxy-cannabidiol. In the last decades, research interest in desoxy-cannabidiol as a potent drug with anti-nociceptive properties has risen. Still, its scarce market availability poses a limit for both research and clinical applications. Therefore, it is necessary to improve the synthesis to produce sufficient amounts of desoxy-cannabidiol. Moreover, also the formulation aspects for this drug are challenging and require to be addressed to meet an efficient delivery to the patients. OBJECTIVE This work aimed to develop innovative phospholipid-based vesicles with propylene glycol (PG), oleic acid (OA), or limonene as edge activators, for the transdermal delivery of highly lipophilic drugs such as non-psychoactive cannabinoids. In particular, desoxy-cannabidiol was selected thanks to its anti-nociceptive activity, and its synthesis was improved enhancing the stereoselectivity of its synthon's production. METHODS Desoxy-cannabidiol was synthesized by Lewis acid-mediated condensation of p-mentha-2,8-dien- 1-ol and m-pentylphenol, improving the stereoselectivity of the first synthon's production. Transethosomes containing 20-50% w/w PG, 0.4-0.8% w/w OA, or 0.1-1% w/w limonene were optimized and loaded with cannabidiol or desoxy-cannabidiol (0.07-0.8% w/w, 0.6-7.0 mg/mL). Ex-vivo studies were performed to assess both the skin permeation and accumulation of the cannabinoids, as well as the penetration depth of fluorescein- loaded systems used as models. RESULTS An enantioselective bromination was added to the pathway, thus raising the production yield of pmentha- 2,8-dien-1-ol to 81% against 35%, and the overall yield of desoxy-cannabidiol synthesis from 12% to 48%. Optimized transethosomes containing 0.6 mg/mL cannabinoids were prepared with 1:10 PG:lipid weight ratio, 0.54 OA:lipid molar ratio, and 0.3 limonene:lipid molar ratio, showing good nanometric size (208 ± 20.8 nm - 321 ± 26.3 nm) and entrapment efficiency (> 80%). Ex-vivo tests showed both improved skin permeation rates of cannabinoids (up to 21.32 ± 4.27 μg/cm2 cannabidiol), and skin penetration (depth of fluorescein up to 240 μm, with PG). CONCLUSION Desoxy-cannabidiol was successfully produced at high yields, and formulated into transethosomes optimized for transdermal delivery. Loaded vesicles showed improved skin penetration of desoxy-cannabidiol, cannabidiol and a lipophilic probe. These results suggest the potential of these carriers for the transdermal delivery of highly lipophilic drugs.
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Affiliation(s)
- Elisa Vettorato
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo, 5, Padova 35131, Italy
| | - Marisa Fiordelisi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo, 5, Padova 35131, Italy
| | - Silvia Ferro
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo, 5, Padova 35131, Italy
| | - Desirè Zanin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo, 5, Padova 35131, Italy
| | - Erica Franceschinis
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo, 5, Padova 35131, Italy
| | - Giovanni Marzaro
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo, 5, Padova 35131, Italy
| | - Nicola Realdon
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo, 5, Padova 35131, Italy
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Wang X, Zhang H, Liu Y, Xu Y, Yang B, Li H, Chen L. An overview on synthetic and biological activities of cannabidiol (CBD) and its derivatives. Bioorg Chem 2023; 140:106810. [PMID: 37659147 DOI: 10.1016/j.bioorg.2023.106810] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 09/04/2023]
Abstract
(-)-Cannabidiol is a class of non-psychoactive plant cannabinoids derived from cannabis plants. Currently, Epidiolex (Cannabidiol) has been approved by the FDA for the treatment of two rare and severe forms of epilepsy related diseases, namely Lennox-Gastaut syndrome (LGS) and Dravet (DS). In addition, Cannabidiol and its structural analogues have received increasing attention due to their potential therapeutic effects such as neuroprotection, anti-epilepsy, anti-inflammation, anti-anxiety, and anti-cancer. Based on literature review, no comprehensive reviews on the synthesis of Cannabidiol and its derivatives have been found in recent years. Therefore, this article summarizes the published synthesis methods of Cannabidiol and the synthesis routes of Cannabidiol derivatives, and introduces the biological activities of some Cannabidiol analogues that have been studied extensively and have significant activities.
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Affiliation(s)
- Xiuli Wang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Huanbang Zhang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yan Liu
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Heilongjiang 150006, China
| | - Yang Xu
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bingyou Yang
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Heilongjiang 150006, China.
| | - Hua Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China; Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China.
| | - Lixia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Domingos LB, Silva NR, Chaves Filho AJM, Sales AJ, Starnawska A, Joca S. Regulation of DNA Methylation by Cannabidiol and Its Implications for Psychiatry: New Insights from In Vivo and In Silico Models. Genes (Basel) 2022; 13:2165. [PMID: 36421839 PMCID: PMC9690868 DOI: 10.3390/genes13112165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 12/24/2023] Open
Abstract
Cannabidiol (CBD) is a non-psychotomimetic compound present in cannabis sativa. Many recent studies have indicated that CBD has a promising therapeutic profile for stress-related psychiatric disorders, such as anxiety, schizophrenia and depression. Such a diverse profile has been associated with its complex pharmacology, since CBD can target different neurotransmitter receptors, enzymes, transporters and ion channels. However, the precise contribution of each of those mechanisms for CBD effects is still not yet completely understood. Considering that epigenetic changes make the bridge between gene expression and environment interactions, we review and discuss herein how CBD affects one of the main epigenetic mechanisms associated with the development of stress-related psychiatric disorders: DNA methylation (DNAm). Evidence from in vivo and in silico studies indicate that CBD can regulate the activity of the enzymes responsible for DNAm, due to directly binding to the enzymes and/or by indirectly regulating their activities as a consequence of neurotransmitter-mediated signaling. The implications of this new potential pharmacological target for CBD are discussed in light of its therapeutic and neurodevelopmental effects.
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Affiliation(s)
- Luana B. Domingos
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Nicole R. Silva
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Adriano J. M. Chaves Filho
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Amanda J. Sales
- Department of Pharmacology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14049-900, SP, Brazil
| | - Anna Starnawska
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, 8000 Aarhus, Denmark
- Center for Genomics and Personalized Medicine, CGPM, Center for Integrative Sequencing, iSEQ, 8000 Aarhus, Denmark
| | - Sâmia Joca
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
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Morales P, Reggio PH, Jagerovic N. An Overview on Medicinal Chemistry of Synthetic and Natural Derivatives of Cannabidiol. Front Pharmacol 2017; 8:422. [PMID: 28701957 PMCID: PMC5487438 DOI: 10.3389/fphar.2017.00422] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 06/14/2017] [Indexed: 12/12/2022] Open
Abstract
Cannabidiol (CBD) has been traditionally used in Cannabis-based preparation, however historically, it has received far less interest as a single drug than the other components of Cannabis. Currently, CBD generates considerable interest due to its beneficial neuroprotective, antiepileptic, anxiolytic, antipsychotic, and anti-inflammatory properties. Therefore, the CBD scaffold becomes of increasing interest for medicinal chemists. This review provides an overview of the chemical structure of natural and synthetic CBD derivatives including the molecular targets associated with these compounds. A clear identification of their biological targets has been shown to be still very challenging.
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Affiliation(s)
- Paula Morales
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, GreensboroNC, United States
| | - Patricia H. Reggio
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, GreensboroNC, United States
| | - Nadine Jagerovic
- Instituto de Química Médica, Consejo Superior de Investigaciones Científicas, Unidad Asociada I+D+i al Instituto de Química Médica/Universidad Rey Juan CarlosMadrid, Spain
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Burstein S. Cannabidiol (CBD) and its analogs: a review of their effects on inflammation. Bioorg Med Chem 2015; 23:1377-85. [DOI: 10.1016/j.bmc.2015.01.059] [Citation(s) in RCA: 283] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 01/23/2015] [Accepted: 01/30/2015] [Indexed: 01/13/2023]
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Wilkinson SM, Price J, Kassiou M. Improved accessibility to the desoxy analogues of Δ9-tetrahydrocannabinol and cannabidiol. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.10.080] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Alkaitis MS, Solorzano C, Landry RP, Piomelli D, DeLeo JA, Romero-Sandoval EA. Evidence for a role of endocannabinoids, astrocytes and p38 phosphorylation in the resolution of postoperative pain. PLoS One 2010; 5:e10891. [PMID: 20531936 PMCID: PMC2878341 DOI: 10.1371/journal.pone.0010891] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2010] [Accepted: 05/05/2010] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND An alarming portion of patients develop persistent or chronic pain following surgical procedures, but the mechanisms underlying the transition from acute to chronic pain states are not fully understood. In general, endocannabinoids (ECBs) inhibit nociceptive processing by stimulating cannabinoid receptors type 1 (CB(1)) and type 2 (CB(2)). We have previously shown that intrathecal administration of a CB(2) receptor agonist reverses both surgical incision-induced behavioral hypersensitivity and associated over-expression of spinal glial markers. We therefore hypothesized that endocannabinoid signaling promotes the resolution of acute postoperative pain by modulating pro-inflammatory signaling in spinal cord glial cells. METHODOLOGY/PRINCIPAL FINDINGS To test this hypothesis, rats receiving paw incision surgery were used as a model of acute postoperative pain that spontaneously resolves. We first characterized the concentration of ECBs and localization of CB(1) and CB(2) receptors in the spinal cord following paw incision. We then administered concomitant CB(1) and CB(2) receptor antagonists/inverse agonists (AM281 and AM630, 1 mg x kg(-1) each, i.p.) during the acute phase of paw incision-induced mechanical allodynia and evaluated the expression of glial cell markers and phosphorylated p38 (a MAPK associated with inflammation) in the lumbar dorsal horn. Dual blockade of CB(1) and CB(2) receptor signaling prevented the resolution of postoperative allodynia and resulted in persistent over-expression of spinal Glial Fibrillary Acidic Protein (GFAP, an astrocytic marker) and phospho-p38 in astrocytes. We provide evidence for the functional significance of these astrocytic changes by demonstrating that intrathecal administration of propentofylline (50 microg, i.t.) attenuated both persistent behavioral hypersensitivity and over-expression of GFAP and phospho-p38 in antagonist-treated animals. CONCLUSIONS/SIGNIFICANCE Our results demonstrate that endocannabinoid signaling via CB(1) and CB(2) receptors is necessary for the resolution of paw incision-induced behavioral hypersensitivity and for the limitation of pro-inflammatory signaling in astrocytes following surgical insult. Our findings suggest that therapeutic strategies designed to enhance endocannabinoid signaling may prevent patients from developing persistent or chronic pain states following surgery.
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MESH Headings
- Animals
- Astrocytes/drug effects
- Astrocytes/metabolism
- Astrocytes/pathology
- Behavior, Animal/drug effects
- Biomarkers/metabolism
- Calcium-Binding Proteins/metabolism
- Cannabinoid Receptor Modulators/metabolism
- Endocannabinoids
- Glial Fibrillary Acidic Protein/metabolism
- Male
- Microfilament Proteins
- Neuroglia/drug effects
- Neuroglia/metabolism
- Pain, Postoperative/enzymology
- Pain, Postoperative/pathology
- Phosphorylation/drug effects
- Rats
- Rats, Sprague-Dawley
- Receptor, Cannabinoid, CB1/antagonists & inhibitors
- Receptor, Cannabinoid, CB1/metabolism
- Receptor, Cannabinoid, CB2/antagonists & inhibitors
- Receptor, Cannabinoid, CB2/metabolism
- Spinal Cord/metabolism
- Spinal Cord/pathology
- Xanthines/pharmacology
- p38 Mitogen-Activated Protein Kinases/metabolism
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Affiliation(s)
- Matthew S. Alkaitis
- Neuroscience Center at Dartmouth, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, United Kingdom
| | - Carlos Solorzano
- Departments of Pharmacology and Biological Chemistry, University of California Irvine, Irvine, California, United States of America
| | - Russell P. Landry
- Neuroscience Center at Dartmouth, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
- Department of Anesthesiology, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
| | - Daniele Piomelli
- Departments of Pharmacology and Biological Chemistry, University of California Irvine, Irvine, California, United States of America
| | - Joyce A. DeLeo
- Neuroscience Center at Dartmouth, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
- Department of Anesthesiology, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
- Department of Pharmacology and Toxicology, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
| | - E. Alfonso Romero-Sandoval
- Neuroscience Center at Dartmouth, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
- Department of Anesthesiology, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
- Department of Pharmacology and Toxicology, Dartmouth Medical School, Lebanon, New Hampshire, United States of America
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Abstract
The CB1 and CB2 cannabinoid receptors have been described as two prime sites of action for endocannabinoids. Both the localization and pharmacology of these two G-protein-coupled receptors are well-described, and numerous selective ligands have been characterized. The physiological effects of Cannabis sativa (cannabis) and a throughout study of the endocannabinoid system allowed for the identification of several pathophysiological conditions--including obesity, dyslipidemia, addictions, inflammation, and allergies--in which blocking the cannabinoid receptors might be beneficial. Many CB1 receptor antagonists are now in clinical trials, and the results of several studies involving the CB1 antagonist lead compound rimonabant (SR141716A) are now available. This review describes the pharmacological tools that are currently available and the animal studies supporting the therapeutic use of cannabinoid receptor antagonists and inverse agonists. The data available from the clinical trials are also discussed.
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Affiliation(s)
- Giulio G Muccioli
- Department of Pharmacology, University of Washington, Seattle, WA 98195, USA.
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9
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Sun H, Mahadevan A, Razdan RK. A novel methodology for the synthesis of 1-desoxy-Δ8-tetrahydrocannabinol (THC) analogues. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2003.10.176] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Mechoulam R, Hanus L, Fride E. Towards cannabinoid drugs--revisited. PROGRESS IN MEDICINAL CHEMISTRY 2000; 35:199-243. [PMID: 10795402 DOI: 10.1016/s0079-6468(08)70037-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- R Mechoulam
- Brettler Medical Research Center, Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Israel
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Wang T, Burges JP, Reggio PH, Seltzman HH. Mild Generation ofo-Quinone Methides. Synthesis of (-)-Hexahydrocannabinol and Dihydrocannabidiol. SYNTHETIC COMMUN 2000. [DOI: 10.1080/00397910008087171] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Keimowitz AR, Martin BR, Razdan RK, Crocker PJ, Mascarella SW, Thomas BF. QSAR analysis of Delta(8)-THC analogues: relationship of side-chain conformation to cannabinoid receptor affinity and pharmacological potency. J Med Chem 2000; 43:59-70. [PMID: 10633038 DOI: 10.1021/jm9902281] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel quantitative structure-activity relationship (QSAR) for the side-chain region of Delta(8)-tetrahydrocannabinol (Delta(8)-THC) analogues is reported. A series of 36 side-chain-substituted Delta(8)-THCs with a wide range of pharmacological potency and CB1 receptor affinity was investigated using computational molecular modeling and QSAR analyses. The conformational mobility of each compound's side chain was characterized using a quenched molecular dynamics approach. The QSAR techniques included a modified active analogue approach (MAA), multiple linear regression analyses (MLR), and comparative molecular field analysis (CoMFA) studies. All three approaches yielded consistent results. The MAA approach applied to a set of alkene/alkyne pairs identified the most active conformers as those with conformational mobility constrained within an approximately 8 A radius. MLR analyses (restricted to 15 hydrocarbon side-chain analogues) identified two variables describing side-chain length and terminus position that were able to fit the pharmacological data for receptor affinity with a correlation coefficient for pK(D) of 0.82. While chain length was found to be directly related to receptor affinity, the angle made by the side chain from its attachment point to its terminus (angle defined by C3-C1'-side-chain terminus carbon, see Figure 1) was found to be inversely related to affinity. These results suggest that increased side-chain length and increased side-chain ability to wrap around the ring system are predicted to increase affinity. Therefore, the side chain's conformational mobility must not restrict the chain straight away from the ring system but must allow the chain to wrap back around toward the ring system. Finally, the CoMFA analyses involved all 36 analogues; they also provided data to support the hypothesis that for optimum affinity and potency the side chain must have conformational freedom that allows its terminus to fold back and come into proximity with the phenolic ring.
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Affiliation(s)
- A R Keimowitz
- Research Triangle Institute, Research Triangle Park, North Carolina 27709-2194, USA
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Consroe P. Brain cannabinoid systems as targets for the therapy of neurological disorders. Neurobiol Dis 1998; 5:534-51. [PMID: 9974182 DOI: 10.1006/nbdi.1998.0220] [Citation(s) in RCA: 98] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Unprecedented developments in cannabinoid research within the past decade include discovery of a brain (CB1) and peripheral (CB2) receptor; endogenous ligands, anandamide, and 2-arachidonylglycerol; cannabinoid drug-induced partial and inverse agonism at CB1 receptors, antagonism of NMDA receptors and glutamate, and antioxidant activity; and preferential CB1 receptor localization in areas subserving spasticity, pain, abnormal involuntary movements, seizures, and amnesia. These endogenous structures and chemicals and mechanisms are potentially new pathophysiologic substrates, and targets for novel cannabinoid treatments, of several neurological disorders.
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Affiliation(s)
- P Consroe
- Department of Pharmacology and Toxicology, University of Arizona Health Sciences Center, Tucson 85721-0577, USA
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