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Kanwal H, Sangineto M, Ciarnelli M, Castaldo P, Villani R, Romano AD, Serviddio G, Cassano T. Potential Therapeutic Targets to Modulate the Endocannabinoid System in Alzheimer's Disease. Int J Mol Sci 2024; 25:4050. [PMID: 38612861 PMCID: PMC11012768 DOI: 10.3390/ijms25074050] [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: 02/27/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Alzheimer's disease (AD), the most common neurodegenerative disease (NDD), is characterized by chronic neuronal cell death through progressive loss of cognitive function. Amyloid beta (Aβ) deposition, neuroinflammation, oxidative stress, and hyperphosphorylated tau proteins are considered the hallmarks of AD pathology. Different therapeutic approaches approved by the Food and Drug Administration can only target a single altered pathway instead of various mechanisms that are involved in AD pathology, resulting in limited symptomatic relief and almost no effect in slowing down the disease progression. Growing evidence on modulating the components of the endocannabinoid system (ECS) proclaimed their neuroprotective effects by reducing neurochemical alterations and preventing cellular dysfunction. Recent studies on AD mouse models have reported that the inhibitors of the fatty acid amide hydrolase (FAAH) and monoacylglycerol (MAGL), hydrolytic enzymes for N-arachidonoyl ethanolamine (AEA) and 2-arachidonoylglycerol (2-AG), respectively, might be promising candidates as therapeutical intervention. The FAAH and MAGL inhibitors alone or in combination seem to produce neuroprotection by reversing cognitive deficits along with Aβ-induced neuroinflammation, oxidative responses, and neuronal death, delaying AD progression. Their exact signaling mechanisms need to be elucidated for understanding the brain intrinsic repair mechanism. The aim of this review was to shed light on physiology and pathophysiology of AD and to summarize the experimental data on neuroprotective roles of FAAH and MAGL inhibitors. In this review, we have also included CB1R and CB2R modulators with their diverse roles to modulate ECS mediated responses such as anti-nociceptive, anxiolytic, and anti-inflammatory actions in AD. Future research would provide the directions in understanding the molecular mechanisms and development of new therapeutic interventions for the treatment of AD.
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Affiliation(s)
- Hina Kanwal
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.S.); (M.C.); (R.V.); (A.D.R.); (G.S.); (T.C.)
| | - Moris Sangineto
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.S.); (M.C.); (R.V.); (A.D.R.); (G.S.); (T.C.)
| | - Martina Ciarnelli
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.S.); (M.C.); (R.V.); (A.D.R.); (G.S.); (T.C.)
| | - Pasqualina Castaldo
- Department of Biomedical Sciences and Public Health, School of Medicine, University “Politecnica delle Marche”, 60126 Ancona, Italy;
| | - Rosanna Villani
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.S.); (M.C.); (R.V.); (A.D.R.); (G.S.); (T.C.)
| | - Antonino Davide Romano
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.S.); (M.C.); (R.V.); (A.D.R.); (G.S.); (T.C.)
| | - Gaetano Serviddio
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.S.); (M.C.); (R.V.); (A.D.R.); (G.S.); (T.C.)
| | - Tommaso Cassano
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.S.); (M.C.); (R.V.); (A.D.R.); (G.S.); (T.C.)
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2
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Gupta RR. Application of Artificial Intelligence and Machine Learning in Drug Discovery. Methods Mol Biol 2022; 2390:113-124. [PMID: 34731466 DOI: 10.1007/978-1-0716-1787-8_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Machine Learning (ML) and Deep Learning (DL) are two subclasses of Artificial Intelligence (AI), that, in this day and age of big data provides significant opportunities to pharmaceutical discovery research and development by translating data to information and ultimately to knowledge. Machine Learning or AI is not really new but over last few years, application of better methods have emerged and they have been successfully applied for drug discovery and development. This chapter would provide an overview of these methods and how they have been applied across various work streams, e.g., generative chemistry, ADMET prediction, retrosynthetic analysis, etc. within drug discovery process. This chapter would also attempt to provide caution and pit falls in utilizing these methods blindly while summarizing challenges and limitations.
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Affiliation(s)
- Rishi R Gupta
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA.
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Jaiswal S, Ayyannan SR. Anticancer Potential of Small-Molecule Inhibitors of Fatty Acid Amide Hydrolase and Monoacylglycerol Lipase. ChemMedChem 2021; 16:2172-2187. [PMID: 33834617 DOI: 10.1002/cmdc.202100120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/08/2021] [Indexed: 12/18/2022]
Abstract
Recently fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MAGL) inhibitors have been in the limelight due to their anticancer potential. Both FAAH and MAGL are the endocannabinoid degrading enzymes that hydrolyze several endogenous ligands, mainly anandamide (AEA) and 2-arachidonic glycerol (2-AG), which regulate various pathophysiological conditions in the body such as emotion, cognition, energy balance, pain sensation, neuroinflammation, and cancer cell proliferation. FAAH and MAGL inhibitors block the metabolism of AEA and 2-AG, increase endogenous levels of fatty acid amides, and exert various therapeutic effects including chronic pain, metabolic disorders, psychoses, nausea and vomiting, depression, and anxiety disorders. FAAH and MAGL are primarily neurotherapeutic targets, but their contribution to various types of carcinomas are significant. Inhibitors of these enzymes either alone or as multitarget agents, or with supra-additive effects show the potential effect in ovarian, breast, prostate, and colorectal cancers. Besides highlighting the role of FAAH and MAGL in cancer progression, this review provides an update on the anticancer capabilities of known and newly discovered FAAH and MAGL inhibitors and also provides further directions to develop FAAH and MAGL inhibitors as new candidates for cancer therapy.
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Affiliation(s)
- Shivani Jaiswal
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India
| | - Senthil Raja Ayyannan
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India
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4
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Schirle M, Jenkins JL. Contemporary Techniques for Target Deconvolution and Mode of Action Elucidation. PHENOTYPIC DRUG DISCOVERY 2020. [DOI: 10.1039/9781839160721-00083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The elucidation of the cellular efficacy target and mechanism of action of a screening hit remain key steps in phenotypic drug discovery. A large number of experimental and in silico approaches have been introduced to address these questions and are being discussed in this chapter with a focus on recent developments. In addition to practical considerations such as throughput and technological requirements, these approaches differ conceptually in the specific compound characteristic that they are focusing on, including physical and functional interactions, cellular response patterns as well as structural features. As a result, different approaches often provide complementary information and we describe a multipronged strategy that is frequently key to successful identification of the efficacy target but also other epistatic nodes and off-targets that together shape the overall cellular effect of a bioactive compound.
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Affiliation(s)
- Markus Schirle
- Chemical Biology and Therapeutics, Novartis Institutes for BioMedical Research Cambridge MA 02139 USA
| | - Jeremy L. Jenkins
- Chemical Biology and Therapeutics, Novartis Institutes for BioMedical Research Cambridge MA 02139 USA
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5
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Bonifácio MJ, Sousa F, Aires C, Loureiro AI, Fernandes-Lopes C, Pires NM, Palma PN, Moser P, Soares-da-Silva P. Preclinical pharmacological evaluation of the fatty acid amide hydrolase inhibitor BIA 10-2474. Br J Pharmacol 2020; 177:2123-2142. [PMID: 31901141 PMCID: PMC7161550 DOI: 10.1111/bph.14973] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 11/17/2019] [Accepted: 12/18/2019] [Indexed: 12/18/2022] Open
Abstract
Background and Purpose In 2016, one person died and four others had mild‐to‐severe neurological symptoms during a phase I trial of the fatty acid amide hydrolase (FAAH) inhibitor BIA 10‐2474. Experimental Approach Pharmacodynamic and pharmacokinetic studies were performed with BIA 10‐2474, PF‐04457845 and JNJ‐42165279 using mice, rats and human FAAH expressed in COS cells. Selectivity was evaluated by activity‐based protein profiling (APBB) in rats. BIA 10‐2474 effect in stroke‐prone spontaneously hypertensive rats (SHRSP) was investigated. Key Results BIA 10‐2474 was 10‐fold less potent than PF‐04457845 in inhibiting human FAAH in situ but inhibited mouse brain and liver FAAH with ED50 values of 13.5 and 6.2 μg·kg−1, respectively. Plasma and brain BIA 10‐2474 levels were consistent with in situ potency and neither BIA 10‐2474 nor its metabolites accumulated following repeat administration. FAAH and α/β‐hydrolase domain containing 6 were the primary targets of BIA 10‐2474 and, at higher exposure levels, ABHD11, PNPLA6, PLA2G15, PLA2G6 and androgen‐induced protein 1. At 100 mg·kg−1 for 28 days, the level of several lipid species containing arachidonic acid increased. Daily treatment of SHRSP with BIA 10‐2474 did not affect mortality rate or increased the incidence of haemorrhage or oedema in surviving animals. Conclusions and Implications BIA 10‐2474 potently inhibits FAAH in vivo, similarly to PF‐04457845 and interacts with a number of lipid processing enzymes, some previously identified in human cells as off‐targets particularly at high levels of exposure. These interactions occurred at doses used in toxicology studies, but the implication of these off‐targets in the clinical trial accident remains unclear.
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Affiliation(s)
- Maria-João Bonifácio
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Filipa Sousa
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Cátia Aires
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Ana I Loureiro
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Carlos Fernandes-Lopes
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Nuno M Pires
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Pedro Nuno Palma
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Paul Moser
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal
| | - Patrício Soares-da-Silva
- Department of Research, Bial-Portela & Cª., S.A., Coronado (S Mamede & S Romão), Portugal.,Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal.,MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal
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6
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The absence of genotoxicity of a novel fatty acid amide hydrolase inhibitor, BIA 10-2474. Regul Toxicol Pharmacol 2019; 111:104556. [PMID: 31866344 DOI: 10.1016/j.yrtph.2019.104556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 11/22/2022]
Abstract
In 2016 one person died and others had neurological sequelae during a clinical trial with BIA 10-2474 (3-(1-(cyclohexyl(methyl)carbamoyl)-lH-imidazol-4-yl)pyridine 1-oxide), a novel fatty acid amide hydrolase (FAAH) inhibitor being developed for the treatment of medical conditions such as pain. Prior to the clinical trial a full battery of regulatory toxicology tests were carried out and this paper describes the genotoxicity/mutagenicity tests undertaken with BIA 10-2474 using the Ames (Salmonella typhimurium) reverse mutation test, the Escherichia coli WP2uvrA forward mutation test, an in vitro chromosome damage assay in human lymphocytes, and an in vivo micronucleus test in mice. All tests were conducted with and without a rat liver S9 metabolic activation system. None of the test results were judged to be positive with regards to the mutagenicity/genotoxicity of BIA 10-2474 making it unlikely that any such effect was involved in the toxicity observed in the clinic.
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Wu MM, Zhang X, Asher MJ, Thayer SA. Druggable targets of the endocannabinoid system: Implications for the treatment of HIV-associated neurocognitive disorder. Brain Res 2019; 1724:146467. [PMID: 31539547 DOI: 10.1016/j.brainres.2019.146467] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 12/24/2022]
Abstract
HIV-associated neurocognitive disorder (HAND) affects nearly half of all HIV-infected individuals. Synaptodendritic damage correlates with neurocognitive decline in HAND, and many studies have demonstrated that HIV-induced neuronal injury results from excitotoxic and inflammatory mechanisms. The endocannabinoid (eCB) system provides on-demand protection against excitotoxicity and neuroinflammation. Here, we discuss evidence of the neuroprotective and anti-inflammatory properties of the eCB system from in vitro and in vivo studies. We examine the pharmacology of the eCB system and evaluate the therapeutic potential of drugs that modulate eCB signaling to treat HAND. Finally, we provide perspective on the need for additional studies to clarify the role of the eCB system in HIV neurotoxicity and speculate that strategies that enhance eCB signaling might slow cognitive decline in HAND.
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Affiliation(s)
- Mariah M Wu
- Graduate Program in Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
| | - Xinwen Zhang
- Department of Pharmacology, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
| | - Melissa J Asher
- Graduate Program in Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
| | - Stanley A Thayer
- Graduate Program in Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Department of Pharmacology, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
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8
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Brunetti L, Loiodice F, Piemontese L, Tortorella P, Laghezza A. New Approaches to Cancer Therapy: Combining Fatty Acid Amide Hydrolase (FAAH) Inhibition with Peroxisome Proliferator-Activated Receptors (PPARs) Activation. J Med Chem 2019; 62:10995-11003. [PMID: 31407888 DOI: 10.1021/acs.jmedchem.9b00885] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Over the course of the past decade, peroxisome proliferator-activated receptors (PPARs) have been identified as part of the cannabinoid signaling system: both phytocannabinoids and endocannabinoids are capable of binding and activating these nuclear receptors. Fatty acid amide hydrolase (FAAH) hydrolyzes the endocannabinoid anandamide and other N-acylethanolamines. These substances have been shown to have numerous anticancer effects, and indeed the inhibition of FAAH has multiple beneficial effects that are mediated by PPARα subtype and by PPARγ subtype, especially antiproliferation and activation of apoptosis. The substrates of FAAH are also PPAR agonists, which explains the PPAR-mediated effects of FAAH inhibitors. Much like cannabinoid ligands and FAAH inhibitors, PPARγ agonists show antiproliferative effects on cancer cells, suggesting that additive or synergistic effects may be achieved through the positive modulation of both signaling systems. In this Miniperspective, we discuss the development of novel FAAH inhibitors able to directly act as PPAR agonists and their promising utilization as leads for the discovery of highly effective anticancer compounds.
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Affiliation(s)
- Leonardo Brunetti
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari "Aldo Moro" , via Orabona 4 , 70125 Bari , Italy
| | - Fulvio Loiodice
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari "Aldo Moro" , via Orabona 4 , 70125 Bari , Italy
| | - Luca Piemontese
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari "Aldo Moro" , via Orabona 4 , 70125 Bari , Italy
| | - Paolo Tortorella
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari "Aldo Moro" , via Orabona 4 , 70125 Bari , Italy
| | - Antonio Laghezza
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari "Aldo Moro" , via Orabona 4 , 70125 Bari , Italy
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Van Vleet TR, Liguori MJ, Lynch JJ, Rao M, Warder S. Screening Strategies and Methods for Better Off-Target Liability Prediction and Identification of Small-Molecule Pharmaceuticals. SLAS DISCOVERY 2018; 24:1-24. [PMID: 30196745 DOI: 10.1177/2472555218799713] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Pharmaceutical discovery and development is a long and expensive process that, unfortunately, still results in a low success rate, with drug safety continuing to be a major impedance. Improved safety screening strategies and methods are needed to more effectively fill this critical gap. Recent advances in informatics are now making it possible to manage bigger data sets and integrate multiple sources of screening data in a manner that can potentially improve the selection of higher-quality drug candidates. Integrated screening paradigms have become the norm in Pharma, both in discovery screening and in the identification of off-target toxicity mechanisms during later-stage development. Furthermore, advances in computational methods are making in silico screens more relevant and suggest that they may represent a feasible option for augmenting the current screening paradigm. This paper outlines several fundamental methods of the current drug screening processes across Pharma and emerging techniques/technologies that promise to improve molecule selection. In addition, the authors discuss integrated screening strategies and provide examples of advanced screening paradigms.
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Affiliation(s)
- Terry R Van Vleet
- 1 Department of Investigative Toxicology and Pathology, AbbVie, N Chicago, IL, USA
| | - Michael J Liguori
- 1 Department of Investigative Toxicology and Pathology, AbbVie, N Chicago, IL, USA
| | - James J Lynch
- 2 Department of Integrated Science and Technology, AbbVie, N Chicago, IL, USA
| | - Mohan Rao
- 1 Department of Investigative Toxicology and Pathology, AbbVie, N Chicago, IL, USA
| | - Scott Warder
- 3 Department of Target Enabling Science and Technology, AbbVie, N Chicago, IL, USA
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Molinski SV, Shahani VM, Subramanian AS, MacKinnon SS, Woollard G, Laforet M, Laselva O, Morayniss LD, Bear CE, Windemuth A. Comprehensive mapping of cystic fibrosis mutations to CFTR protein identifies mutation clusters and molecular docking predicts corrector binding site. Proteins 2018; 86:833-843. [DOI: 10.1002/prot.25496] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 03/07/2018] [Accepted: 03/19/2018] [Indexed: 01/01/2023]
Affiliation(s)
| | | | | | | | | | | | - Onofrio Laselva
- Programme in Molecular Structure and Function; Research Institute, Hospital for Sick Children; Toronto Ontario M5G 0A4 Canada
| | | | - Christine E. Bear
- Programme in Molecular Structure and Function; Research Institute, Hospital for Sick Children; Toronto Ontario M5G 0A4 Canada
- Department of Physiology; University of Toronto; Toronto Ontario M5S 1A8 Canada
- Department of Biochemistry; University of Toronto; Toronto Ontario M5S 1A8 Canada
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Donvito G, Nass SR, Wilkerson JL, Curry ZA, Schurman LD, Kinsey SG, Lichtman AH. The Endogenous Cannabinoid System: A Budding Source of Targets for Treating Inflammatory and Neuropathic Pain. Neuropsychopharmacology 2018; 43:52-79. [PMID: 28857069 PMCID: PMC5719110 DOI: 10.1038/npp.2017.204] [Citation(s) in RCA: 178] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 08/24/2017] [Accepted: 08/27/2017] [Indexed: 02/07/2023]
Abstract
A great need exists for the development of new medications to treat pain resulting from various disease states and types of injury. Given that the endogenous cannabinoid (that is, endocannabinoid) system modulates neuronal and immune cell function, both of which play key roles in pain, therapeutics targeting this system hold promise as novel analgesics. Potential therapeutic targets include the cannabinoid receptors, type 1 and 2, as well as biosynthetic and catabolic enzymes of the endocannabinoids N-arachidonoylethanolamine and 2-arachidonoylglycerol. Notably, cannabinoid receptor agonists as well as inhibitors of endocannabinoid-regulating enzymes fatty acid amide hydrolase and monoacylglycerol lipase produce reliable antinociceptive effects, and offer opioid-sparing antinociceptive effects in myriad preclinical inflammatory and neuropathic pain models. Emerging clinical studies show that 'medicinal' cannabis or cannabinoid-based medications relieve pain in human diseases such as cancer, multiple sclerosis, and fibromyalgia. However, clinical data have yet to demonstrate the analgesic efficacy of inhibitors of endocannabinoid-regulating enzymes. Likewise, the question of whether pharmacotherapies aimed at the endocannabinoid system promote opioid-sparing effects in the treatment of pain reflects an important area of research. Here we examine the preclinical and clinical evidence of various endocannabinoid system targets as potential therapeutic strategies for inflammatory and neuropathic pain conditions.
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Affiliation(s)
- Giulia Donvito
- Department of Pharmacology and Toxicology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA, USA
| | - Sara R Nass
- Department of Psychology, West Virginia University, Morgantown, WV, USA
| | - Jenny L Wilkerson
- Department of Pharmacology and Toxicology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA, USA
| | - Zachary A Curry
- Department of Pharmacology and Toxicology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA, USA
| | - Lesley D Schurman
- Department of Pharmacology and Toxicology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA, USA
| | - Steven G Kinsey
- Department of Psychology, West Virginia University, Morgantown, WV, USA
| | - Aron H Lichtman
- Department of Pharmacology and Toxicology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA, USA
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12
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Sanchez CG, Molinski SV, Gongora R, Sosulski M, Fuselier T, MacKinnon SS, Mondal D, Lasky JA. The Antiretroviral Agent Nelfinavir Mesylate. Arthritis Rheumatol 2017; 70:115-126. [DOI: 10.1002/art.40326] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 09/13/2017] [Indexed: 12/28/2022]
Affiliation(s)
| | | | - Rafael Gongora
- Tulane University Health Sciences Center New Orleans Louisiana
| | | | - Taylor Fuselier
- Tulane University Health Sciences Center New Orleans Louisiana
| | | | - Debasis Mondal
- Tulane University School of Medicine New Orleans Louisiana
| | - Joseph A. Lasky
- Tulane University Health Sciences Center New Orleans Louisiana
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13
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Somody JC, MacKinnon SS, Windemuth A. Structural coverage of the proteome for pharmaceutical applications. Drug Discov Today 2017; 22:1792-1799. [DOI: 10.1016/j.drudis.2017.08.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/16/2017] [Accepted: 08/17/2017] [Indexed: 01/09/2023]
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14
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Chaikin P. Reply to Letter: The Use of IC50 for Potency and MTD as Objective in Study BIA 10-2474, by Mattheus van Iersel, MD. J Clin Pharmacol 2017; 57:1359-1361. [DOI: 10.1002/jcph.1000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 11/08/2022]
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15
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Chaikin P. The Bial 10-2474 Phase 1 Study-A Drug Development Perspective and Recommendations for Future First-in-Human Trials. J Clin Pharmacol 2017; 57:690-703. [PMID: 28387940 DOI: 10.1002/jcph.889] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 02/15/2017] [Indexed: 11/11/2022]
Abstract
BIA 10-2474 (a fatty acid amide hydrolase inhibitor) was evaluated in a first-in-human phase 1 study in normal volunteers to assess safety/tolerability, pharmacokinetics, pharmacodynamics, and food effect. The dose-escalation process consisted of a single-ascending-dose phase (SAD) and multiple-ascending-dose phase (MAD). Prospective determination of the starting dose and maximal escalated dose was consistent with the usual clinical pharmacology principles for extrapolation of preclinical toxicology data to human equivalent doses. After only 5-6 days of multiple-dose administration of 50 mg daily in the MAD phase, several subjects became quite ill with central nervous system symptoms. One subject progressed to brain death within several days of symptom onset. Magnetic resonance imaging scans demonstrated signal abnormalities consistent with microbleeds affecting the hippocampus and pons, suggestive of possible cytotoxic or vasogenic edema compatible with a toxic/metabolic process. There were no findings at lower MAD doses or during the SAD phase. The toxicology program carried out in 4 preclinical species (mouse, rat, dog, and monkey) did not demonstrate significant neurotoxicity. The probable mechanism of neurologic toxicity demonstrated in humans at the 50-mg daily dose was inhibition of off-target cerebral receptors or through another mechanism. Additional recommendations have been proposed for future first-in-human studies to maximize subject safety. However, one must also accept the basic premise that, in general, first-in-human phase 1 studies are remarkably safe, and these rare events are not 100% avoidable during the drug development process.
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