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MAS-related G protein-coupled receptors X (MRGPRX): Orphan GPCRs with potential as targets for future drugs. Pharmacol Ther 2022; 238:108259. [DOI: 10.1016/j.pharmthera.2022.108259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 11/20/2022]
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2
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Berhane I, Hin N, Thomas AG, Huang Q, Zhang C, Veeravalli V, Wu Y, Ng J, Alt J, Rojas C, Hihara H, Aoki M, Yoshizawa K, Nishioka T, Suzuki S, He SQ, Peng Q, Guan Y, Dong X, Raja SN, Slusher BS, Rais R, Tsukamoto T. Thieno[2,3- d]pyrimidine-Based Positive Allosteric Modulators of Human Mas-Related G Protein-Coupled Receptor X1 (MRGPRX1). J Med Chem 2022; 65:3218-3228. [PMID: 35119273 PMCID: PMC9176367 DOI: 10.1021/acs.jmedchem.1c01709] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mas-related G protein-coupled receptor X1 (MRGPRX1) is a human sensory neuron-specific receptor and potential target for the treatment of pain. Positive allosteric modulators (PAMs) of MRGPRX1 have the potential to preferentially activate the receptors at the central terminals of primary sensory neurons and minimize itch side effects caused by peripheral activation. Using a high-throughput screening (HTS) hit, a series of thieno[2,3-d]pyrimidine-based molecules were synthesized and evaluated as human MRGPRX1 PAMs in HEK293 cells stably transfected with human MrgprX1 gene. An iterative process to improve potency and metabolic stability led to the discovery of orally available 6-(tert-butyl)-5-(3,4-dichlorophenyl)-4-(2-(trifluoromethoxy)phenoxy)thieno[2,3-d]pyrimidine (1t), which can be distributed to the spinal cord, the presumed site of action, following oral administration. In a neuropathic pain model induced by sciatic nerve chronic constriction injury (CCI), compound 1t (100 mg/kg, po) reduced behavioral heat hypersensitivity in humanized MRGPRX1 mice, demonstrating the therapeutic potential of MRGPRX1 PAMs in treating neuropathic pain.
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Affiliation(s)
- Ilyas Berhane
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA,Department of Neurology, Johns Hopkins University,
Baltimore, MD 21205, USA
| | - Niyada Hin
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Ajit G. Thomas
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Qian Huang
- Department of Anesthesiology and Critical Care
Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Chi Zhang
- Department of Anesthesiology and Critical Care
Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Vijayabhaskar Veeravalli
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA,Department of Neurology, Johns Hopkins University,
Baltimore, MD 21205, USA
| | - Ying Wu
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Justin Ng
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Jesse Alt
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Camilo Rojas
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Hiroe Hihara
- Tsukuba Research Laboratories, Eisai Co., Ltd.,
Tsukuba, Ibaraki 300-2635, Japan
| | - Mika Aoki
- Tsukuba Research Laboratories, Eisai Co., Ltd.,
Tsukuba, Ibaraki 300-2635, Japan
| | - Kyoko Yoshizawa
- Tsukuba Research Laboratories, Eisai Co., Ltd.,
Tsukuba, Ibaraki 300-2635, Japan
| | - Tomoki Nishioka
- Tsukuba Research Laboratories, Eisai Co., Ltd.,
Tsukuba, Ibaraki 300-2635, Japan
| | - Shuichi Suzuki
- Tsukuba Research Laboratories, Eisai Co., Ltd.,
Tsukuba, Ibaraki 300-2635, Japan
| | - Shao-Qiu He
- Department of Anesthesiology and Critical Care
Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Qi Peng
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Yun Guan
- Department of Anesthesiology and Critical Care
Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Xinzhong Dong
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Srinivasa N. Raja
- Department of Anesthesiology and Critical Care
Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Barbara S. Slusher
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA,Department of Neurology, Johns Hopkins University,
Baltimore, MD 21205, USA,Solomon H. Snyder Department of Neuroscience, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Rana Rais
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA,Department of Neurology, Johns Hopkins University,
Baltimore, MD 21205, USA
| | - Takashi Tsukamoto
- Johns Hopkins Drug Discovery, Johns Hopkins
University, Baltimore, MD 21205, USA,Department of Neurology, Johns Hopkins University,
Baltimore, MD 21205, USA
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Prchalová E, Hin N, Thomas AG, Veeravalli V, Ng J, Alt J, Rais R, Rojas C, Li Z, Hihara H, Aoki M, Yoshizawa K, Nishioka T, Suzuki S, Kopajtic T, Chatrath S, Liu Q, Dong X, Slusher BS, Tsukamoto T. Discovery of Benzamidine- and 1-Aminoisoquinoline-Based Human MAS-Related G-Protein-Coupled Receptor X1 (MRGPRX1) Agonists. J Med Chem 2019; 62:8631-8641. [PMID: 31498617 PMCID: PMC10079166 DOI: 10.1021/acs.jmedchem.9b01003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Mas-related G-protein-coupled receptor X1 (MRGPRX1) is a human sensory neuron-specific receptor and has been actively investigated as a therapeutic target for the treatment of pain. By use of two HTS screening hit compounds, 4-(4-(benzyloxy)-3-methoxybenzylamino)benzimidamide (5a) and 4-(2-(butylsulfonamido)-4-methylphenoxy)benzimidamide (11a), as molecular templates, a series of human MRGPRX1 agonists were synthesized and evaluated for their agonist activity using HEK293 cells stably transfected with human MrgprX1. Conversion of the benzamidine moiety into a 1-aminoisoquinoline moiety carried out in the later stage of structural optimization led to the discovery of a highly potent MRGPRX1 agonist, N-(2-(1-aminoisoquinolin-6-yloxy)-4-methylphenyl)-2-methoxybenzenesulfonamide (16), not only devoid of positively charged amidinium group but also with superior selectivity over opioid receptors. In mice, compound 16 displayed favorable distribution to the spinal cord, the presumed site of action for the MRGPRX1-mediated analgesic effects.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Hiroe Hihara
- Tsukuba Research Laboratories , Eisai Co., Ltd. , Tsukuba , Ibaraki 300-2635 , Japan
| | - Mika Aoki
- Tsukuba Research Laboratories , Eisai Co., Ltd. , Tsukuba , Ibaraki 300-2635 , Japan
| | - Kyoko Yoshizawa
- Tsukuba Research Laboratories , Eisai Co., Ltd. , Tsukuba , Ibaraki 300-2635 , Japan
| | - Tomoki Nishioka
- Tsukuba Research Laboratories , Eisai Co., Ltd. , Tsukuba , Ibaraki 300-2635 , Japan
| | - Shuichi Suzuki
- Tsukuba Research Laboratories , Eisai Co., Ltd. , Tsukuba , Ibaraki 300-2635 , Japan
| | - Theresa Kopajtic
- Biobehavioral Imaging and Molecular Neuropsychopharmacology Unit , National Institute on Drug Abuse-Intramural Research Program, National Institutes of Health , Baltimore , Maryland 21224 , United States
| | - Sheena Chatrath
- Department of Anesthesiology and Center for the Study of Itch , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
| | - Qin Liu
- Department of Anesthesiology and Center for the Study of Itch , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
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Derasp JS, Vincent-Rocan JF, Beauchemin AM. Divergent Reactivity of N-Isocyanates with Primary and Secondary Amines: Access to Pyridazinones and Triazinones. Org Lett 2016; 18:658-61. [DOI: 10.1021/acs.orglett.5b03590] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joshua S. Derasp
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Jean-François Vincent-Rocan
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - André M. Beauchemin
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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Schröder W, Alique M, Herrero J. Effects of the mas-related gene (Mrg) C receptor agonist BAM6-22 on nociceptive reflex activity in naive, monoarthritic and mononeuropathic rats after intraplantar and intrathecal administration. Eur J Pharmacol 2016; 770:147-53. [DOI: 10.1016/j.ejphar.2015.11.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 11/19/2015] [Accepted: 11/20/2015] [Indexed: 11/25/2022]
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Hin N, Alt J, Zimmermann SC, Delahanty G, Ferraris DV, Rojas C, Li F, Liu Q, Dong X, Slusher BS, Tsukamoto T. Peptidomimetics of Arg-Phe-NH2 as small molecule agonists of Mas-related gene C (MrgC) receptors. Bioorg Med Chem 2014; 22:5831-7. [PMID: 25288495 DOI: 10.1016/j.bmc.2014.09.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 09/05/2014] [Accepted: 09/11/2014] [Indexed: 10/24/2022]
Abstract
A series of Arg-Phe-NH2 peptidomimetics containing an Arg mimetic were synthesized and tested as agonists of human MrgX1, rat MrgC, and mouse MrgC11 receptors. As predicted from the previously established species specificity, these peptidomimetics were found to be devoid of MrgX1 agonist activity. In contrast, these compounds acted as agonists of MrgC and/or MrgC11 with varying degrees of potency. These new peptidomimetics should complement the existing small molecule human MrgX1 agonists and enhance our ability to assess the therapeutic utility of targeting Mrg receptors in rodent models.
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Affiliation(s)
- Niyada Hin
- Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Jesse Alt
- Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Sarah C Zimmermann
- Department of Neurology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Greg Delahanty
- Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Dana V Ferraris
- Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Camilo Rojas
- Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Fengxian Li
- Center for the Study of Itch and Departments of Anesthesiology and Anatomy & Neurobiology, Washington University School of Medicine, St Louis, MO 63110, United States
| | - Qin Liu
- Center for the Study of Itch and Departments of Anesthesiology and Anatomy & Neurobiology, Washington University School of Medicine, St Louis, MO 63110, United States
| | - Xinzhong Dong
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Barbara S Slusher
- Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, United States; Department of Neurology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Takashi Tsukamoto
- Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, United States; Department of Neurology, Johns Hopkins University, Baltimore, MD 21205, United States.
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Wen W, Wang Y, Li Z, Tseng PY, McManus OB, Wu M, Li M, Lindsley CW, Dong X, Hopkins CR. Discovery and characterization of 2-(cyclopropanesulfonamido)-N-(2-ethoxyphenyl)benzamide, ML382: a potent and selective positive allosteric modulator of MrgX1. ChemMedChem 2014; 10:57-61. [PMID: 25209672 DOI: 10.1002/cmdc.201402277] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Indexed: 11/08/2022]
Abstract
Previous studies have shown that the activation of mouse MrgC11, a G-protein-coupled receptor, by its peptide ligand BAM8-22 can inhibit chronic pain. A large-scale screen has been carried out to isolate small-molecule allosteric agonists of MrgX1, the human homologue of MrgC11. The goal of this study is to improve the efficacy and potency of positive allosteric modulators (PAMs) with therapeutic implications in combating chronic pain. Herein we report an iterative parallel synthesis effort and a structure-activity relationship study of a series of arylsulfonamides which led to the discovery of the first PAM of MrgX1, ML382.
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Affiliation(s)
- Wandong Wen
- Department of Pharmacology, Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt Specialized Chemistry Center (MLPCN), Vanderbilt University Medical Center, Nashville, TN 37232-6600 (USA)
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Expression and distribution patterns of Mas-related gene receptor subtypes A-H in the mouse intestine: inflammation-induced changes. Histochem Cell Biol 2013; 139:639-58. [PMID: 23504129 DOI: 10.1007/s00418-013-1086-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2013] [Indexed: 12/20/2022]
Abstract
Mas-related gene (Mrg) receptors constitute a subfamily of G protein-coupled receptors that are implicated in nociception, and are as such considered potential targets for pain therapies. Furthermore, some Mrgs have been suggested to play roles in the regulation of inflammatory responses to non-immunological activation of mast cells and in mast cell-neuron communication. Except for MrgD, E and F, whose changed expression has been revealed during inflammation in the mouse intestine in our earlier studies, information concerning the remaining cloned mouse Mrg subtypes in the gastrointestinal tract during (patho) physiological conditions is lacking. Therefore, the present study aimed at identifying the presence and putative function of these remaining cloned Mrg subtypes (n = 19) in the (inflamed) mouse intestine. Using reverse transcriptase-PCR, quantitative-PCR and multiple immunofluorescence staining with commercial and newly custom-developed antibodies, we compared the ileum and the related dorsal root ganglia (DRG) of non-inflamed mice with those of two models of intestinal inflammation, i.e., intestinal schistosomiasis and 2,4,6-trinitrobenzene sulfonic acid-induced ileitis. In the non-inflamed ileum and DRG, the majority of the Mrg subtypes examined were sparsely expressed, showing a neuron-specific expression pattern. However, significant changes in the expression patterns of multiple Mrg subtypes were observed in the inflamed ileum; for instance, MrgA4, MrgB2and MrgB8 were expressed in a clearly increased number of enteric sensory neurons and in nerve fibers in the lamina propria, while de novo expression of MrgB10 was observed in enteric sensory neurons and in newly recruited mucosal mast cells (MMCs). The MrgB10 expressing MMCs were found to be in close contact with nerve fibers in the lamina propria. This is the first report on the expression of all cloned Mrg receptor subtypes in the (inflamed) mouse intestine. The observed changes in the expression and cellular localization of the Mrg subtypes suggest that these receptors are involved in the mediation of primary afferent responses, mast cell responses, and in neuroimmune communication during intestinal inflammation.
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Avula LR, Buckinx R, Alpaerts K, Costagliola A, Adriaensen D, Van Nassauw L, Timmermans JP. The effect of inflammation on the expression and distribution of the MAS-related gene receptors MrgE and MrgF in the murine ileum. Histochem Cell Biol 2011; 136:569-85. [DOI: 10.1007/s00418-011-0862-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2011] [Indexed: 12/31/2022]
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10
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Faure P, Dubus E, Ijjaali I, Morlière C, Barberan O, Petitet F. Knowledge-based analysis of multi-potent G-protein coupled receptors ligands. Eur J Med Chem 2010; 45:5708-17. [DOI: 10.1016/j.ejmech.2010.09.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2010] [Revised: 09/01/2010] [Accepted: 09/01/2010] [Indexed: 10/19/2022]
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Wrigley SK. Functional molecules from natural sources: organized by the Royal Society of Chemistry Biotechnology Group, Magdalen College, Oxford, UK, 6-8 July 2009. J Antibiot (Tokyo) 2009; 62:649-50. [PMID: 19798120 DOI: 10.1038/ja.2009.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Stephen K Wrigley
- Hypha Discovery Ltd., Russell Building, Brunel Science Park, Kingston Lane, Uxbridge, Middlesex, UK.
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