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Krall J, Bavo F, Falk-Petersen CB, Jensen CH, Nielsen JO, Tian Y, Anglani V, Kongstad KT, Piilgaard L, Nielsen B, Gloriam DE, Kehler J, Jensen AA, Harpsøe K, Wellendorph P, Frølund B. Discovery of 2-(Imidazo[1,2-b]pyridazin-2-yl)acetic Acid as a New Class of Ligands Selective for the γ-Hydroxybutyric Acid (GHB) High-Affinity Binding Sites. J Med Chem 2019; 62:2798-2813. [DOI: 10.1021/acs.jmedchem.9b00131] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jacob Krall
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Francesco Bavo
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy
| | - Christina B. Falk-Petersen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Claus H. Jensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Julie O. Nielsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Yongsong Tian
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Valeria Anglani
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Kenneth T. Kongstad
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Louise Piilgaard
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Birgitte Nielsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - David E. Gloriam
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Jan Kehler
- Discovery Chemistry and DMPK, H. Lundbeck A/S, Ottiliavej, DK-2500 Valby, Denmark
| | - Anders A. Jensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Kasper Harpsøe
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Petrine Wellendorph
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Bente Frølund
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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2
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Singh P, Talwar P. Exploring putative inhibitors of Death Associated Protein Kinase 1 (DAPK1) via targeting Gly-Glu-Leu (GEL) and Pro-Glu-Asn (PEN) substrate recognition motifs. J Mol Graph Model 2017; 77:153-167. [PMID: 28858643 DOI: 10.1016/j.jmgm.2017.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 08/01/2017] [Accepted: 08/02/2017] [Indexed: 02/03/2023]
Abstract
Recently, a new signaling complex Death Associated Protein Kinase 1 (DAPK1) ̶ N-methyl-D-aspartate receptor subtype 2B (NMDAR2B or NR2B) engaged in the neuronal death cascade was identified and it was found that after stroke injury, N-methyl-D-aspartate glutamate (NMDA) receptors interact with DAPK1 through NR2B subunit and lead to excitotoxicity via over-activation of NMDA receptors. An acute brain injury, such as stroke, is a serious life-threatening medical condition which occurs due to poor blood supply to the brain and further leads to neuronal cell death. During a stroke, activated DAPK1 migrates towards the extra-synaptic site and binds to NR2B subunit of NMDA receptor. It is this DAPK1-NR2B interaction that arbitrates the pathological processes like apoptosis, necrosis, and autophagy of neuronal cells observed in stroke injury, hence we aimed to inhibit this vital interaction to prevent neuronal damage. In the present study, using PubChem database, we applied an integrative approach of virtual screening and molecular dynamic simulations and identified a potential lead compound 11 that interrupts DAPK1-NR2B interaction by competing with both ATP and substrate for their binding sites on DAPK1. This inhibitor was found potent and considerably selective to DAPK1 as it made direct contact with the ATP binding sites as well as substrate recognition motifs: Gly-Glu-Leu (GEL) and Pro-Glu-Asn (PEN). Further in vitro and in vivo experiments are demanded to validate the efficacy of compound 11 nevertheless, it can be considered as suitable starting point for designing DAPK1 inhibitors.
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Affiliation(s)
- Pratibha Singh
- Apoptosis and Cell Survival Research Laboratory, Department of Bio-Sciences, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu 632014, India
| | - Priti Talwar
- Apoptosis and Cell Survival Research Laboratory, Department of Bio-Sciences, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu 632014, India.
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3
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A pharmacological characterization of GABA, THIP and DS2 at binary α4β3 and β3δ receptors: GABA activates β3δ receptors via the β3(+)δ(−) interface. Brain Res 2016; 1644:222-30. [DOI: 10.1016/j.brainres.2016.05.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 04/21/2016] [Accepted: 05/09/2016] [Indexed: 11/24/2022]
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4
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Galenko AV, Khlebnikov AF, Novikov MS, Pakalnis VV, Rostovskii NV. Recent advances in isoxazole chemistry. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4503] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Beinat C, Reekie T, Banister SD, O'Brien-Brown J, Xie T, Olson TT, Xiao Y, Harvey A, O'Connor S, Coles C, Grishin A, Kolesik P, Tsanaktsidis J, Kassiou M. Structure-activity relationship studies of SEN12333 analogues: determination of the optimal requirements for binding affinities at α7 nAChRs through incorporation of known structural motifs. Eur J Med Chem 2015; 95:277-301. [PMID: 25827398 DOI: 10.1016/j.ejmech.2015.03.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 12/27/2022]
Abstract
Alpha7 nicotinic acetylcholine receptors (nAChRs) have implications in the regulation of cognitive processes such as memory and attention and have been identified as a promising therapeutic target for the treatment of the cognitive deficits associated with schizophrenia and Alzheimer's disease (AD). Structure affinity relationship studies of the previously described α7 agonist SEN12333 (8), have resulted in the identification of compound 45, a potent and selective agonist of the α7 nAChR with enhanced affinity and improved physicochemical properties over the parent compound (SEN12333, 8).
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Affiliation(s)
- Corinne Beinat
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia; Department of Radiology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tristan Reekie
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Samuel D Banister
- Department of Radiology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | | | - Teresa Xie
- Department of Pharmacology and Physiology, Georgetown University, Washington, DC 20057, USA
| | - Thao T Olson
- Department of Pharmacology and Physiology, Georgetown University, Washington, DC 20057, USA
| | - Yingxian Xiao
- Department of Pharmacology and Physiology, Georgetown University, Washington, DC 20057, USA
| | | | | | | | | | | | - John Tsanaktsidis
- CSIRO Materials Science & Engineering, Ian Wark Laboratory, Bayview Avenue, Clayton, Victoria 3168, Australia
| | - Michael Kassiou
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia; Faculty of Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia.
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6
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Metal Catalyzed Cross-Coupling Reactions in the Decoration of Pyrimidine, Pyridazine, and Pyrazine. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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Kumar Jangid M, Yadav T, Yadav AK. Microwave-enhanced Efficient Synthesis of Some Polyfunctional Pyridazines. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Kumar Jangid
- Department of Chemistry; University of Rajasthan; Jaipur; 302 004; India
| | - T. Yadav
- Department of Chemistry; University of Rajasthan; Jaipur; 302 004; India
| | - A. K. Yadav
- Department of Chemistry; University of Rajasthan; Jaipur; 302 004; India
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8
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Sengmany S, Vitu-Thiebaud A, Le Gall E, Condon S, Léonel E, Thobie-Gautier C, Pipelier M, Lebreton J, Dubreuil D. An Electrochemical Nickel-Catalyzed Arylation of 3-Amino-6-Chloropyridazines. J Org Chem 2013; 78:370-9. [DOI: 10.1021/jo3022428] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Stéphane Sengmany
- Equipe Electrochimie
et Synthèse
Organique, Institut de Chimie et des Matériaux Paris-Est, UMR
7182 CNRS-Université Paris-Est Créteil Val de Marne,
2 rue Henri Dunant, BP 28, F-94320, Thiais, France
| | - Arnaud Vitu-Thiebaud
- Equipe Electrochimie
et Synthèse
Organique, Institut de Chimie et des Matériaux Paris-Est, UMR
7182 CNRS-Université Paris-Est Créteil Val de Marne,
2 rue Henri Dunant, BP 28, F-94320, Thiais, France
| | - Erwan Le Gall
- Equipe Electrochimie
et Synthèse
Organique, Institut de Chimie et des Matériaux Paris-Est, UMR
7182 CNRS-Université Paris-Est Créteil Val de Marne,
2 rue Henri Dunant, BP 28, F-94320, Thiais, France
| | - Sylvie Condon
- Equipe Electrochimie
et Synthèse
Organique, Institut de Chimie et des Matériaux Paris-Est, UMR
7182 CNRS-Université Paris-Est Créteil Val de Marne,
2 rue Henri Dunant, BP 28, F-94320, Thiais, France
| | - Eric Léonel
- Equipe Electrochimie
et Synthèse
Organique, Institut de Chimie et des Matériaux Paris-Est, UMR
7182 CNRS-Université Paris-Est Créteil Val de Marne,
2 rue Henri Dunant, BP 28, F-94320, Thiais, France
| | - Christine Thobie-Gautier
- Laboratoire de Synthèse
Organique, Chimie et Interdisciplinarité: Synthèse,
Analyse, Modélisation, UMR 6513 CNRS-Université de Nantes, 2 rue de la Houssinière, BP 92208,
F-44322 Nantes Cedex 3, France
| | - Muriel Pipelier
- Laboratoire de Synthèse
Organique, Chimie et Interdisciplinarité: Synthèse,
Analyse, Modélisation, UMR 6513 CNRS-Université de Nantes, 2 rue de la Houssinière, BP 92208,
F-44322 Nantes Cedex 3, France
| | - Jacques Lebreton
- Laboratoire de Synthèse
Organique, Chimie et Interdisciplinarité: Synthèse,
Analyse, Modélisation, UMR 6513 CNRS-Université de Nantes, 2 rue de la Houssinière, BP 92208,
F-44322 Nantes Cedex 3, France
| | - Didier Dubreuil
- Laboratoire de Synthèse
Organique, Chimie et Interdisciplinarité: Synthèse,
Analyse, Modélisation, UMR 6513 CNRS-Université de Nantes, 2 rue de la Houssinière, BP 92208,
F-44322 Nantes Cedex 3, France
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9
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Rahman MM, Akiyoshi Y, Furutani S, Matsuda K, Furuta K, Ikeda I, Ozoe Y. Competitive antagonism of insect GABA receptors by iminopyridazine derivatives of GABA. Bioorg Med Chem 2012; 20:5957-64. [PMID: 22925448 DOI: 10.1016/j.bmc.2012.07.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 07/23/2012] [Accepted: 07/23/2012] [Indexed: 12/01/2022]
Abstract
A series of 4-(6-imino-3-aryl/heteroarylpyridazin-1-yl)butanoic acids were synthesized and examined for antagonism of GABA receptors from three insect species. When tested against small brown planthopper GABA receptors, the 3,4-methylenedioxyphenyl and the 2-naphthyl analogues showed complete inhibition of GABA-induced fluorescence changes at 100 μM in assays using a membrane potential probe. Against common cutworm GABA receptors, these analogues displayed approximately 86% and complete inhibition of GABA-induced fluorescence changes at 100 μM, respectively. The 4-biphenyl and 4-phenoxyphenyl analogues showed moderate inhibition at 10 μM in these receptors, although the inhibition at 100 μM was not complete. Against American cockroach GABA receptors, the 4-biphenyl analogue exhibited the greatest inhibition (approximately 92%) of GABA-induced currents, when tested at 500 μM using a patch-clamp technique. The second most active analogue was the 2-naphthyl analogue with approximately 85% inhibition. The 3-thienyl analogue demonstrated competitive inhibition of cockroach GABA receptors. Homology modeling and ligand docking studies predicted that hydrophobic 3-substituents could interact with an accessory binding site at the orthosteric binding site.
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Affiliation(s)
- Mohammad Mostafizur Rahman
- Division of Bioscience and Biotechnology, United Graduate School of Agricultural Sciences, Tottori University, Tottori 680-8553, Japan
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Yamamoto I, Carland JE, Locock K, Gavande N, Absalom N, Hanrahan JR, Allan RD, Johnston GAR, Chebib M. Structurally diverse GABA antagonists interact differently with open and closed conformational states of the ρ1 receptor. ACS Chem Neurosci 2012; 3:293-301. [PMID: 22860195 DOI: 10.1021/cn200121r] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 01/13/2012] [Indexed: 11/29/2022] Open
Abstract
Ligands acting on receptors are considered to induce a conformational change within the ligand-binding site by interacting with specific amino acids. In this study, tyrosine 102 (Y102) located in the GABA binding site of the ρ(1) subunit of the GABA(C) receptor was mutated to alanine (ρ(1Y102A)), serine (ρ(1Y102S)), and cysteine (ρ(1Y102C)) to assess the role of this amino acid in the action of 12 known and 2 novel antagonists. Of the mutated receptors, ρ(1Y102S) was constitutively active, providing an opportunity to assess the activity of antagonists on ρ(1) receptors with a proportion of receptors existing in the open conformational state compared to those existing predominantly in the closed conformational state. It was found that the majority of antagonists studied were able to inhibit the constitutive activity displayed by ρ(1Y102S), thus displaying inverse agonist activity. The exception was (±)-4-aminocyclopent-1-enecarboxamide ((±)-4-ACPAM) (8) not exhibiting any inverse agonist activity, but acting explicitly on the closed conformational state of ρ(1) receptors (ρ(1) wild-type, ρ(1Y102C) and ρ(1Y102A)). It was also found that the GABA antagonists were more potent at the closed compared to the open conformational states of ρ(1) receptors, suggesting that they may act by stabilizing closed conformational state and thus reducing activation by agonists. Furthermore, of the antagonists tested, Y102 was found to have the greatest influence on the antagonist activity of gabazine (SR-95531 (13)) and its analogue (SR-95813 (14)). This study contributes to our understanding of the mechanism of inverse agonism. This is important, as such agents are emerging as potential therapeutics.
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Affiliation(s)
- Izumi Yamamoto
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jane E. Carland
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Katherine Locock
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Navnath Gavande
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Nathan Absalom
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jane R. Hanrahan
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Robin D. Allan
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Graham A. R. Johnston
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Mary Chebib
- Faculty
of Pharmacy and ‡Department of Pharmacology, The University of Sydney, Sydney, NSW 2006, Australia
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11
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Hassan HMA, Harakeh S, Sakkaf KA, Denetiu I. Progress in Microwave-Aided Chemical Synthesis. Aust J Chem 2012. [DOI: 10.1071/ch12366] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The continuing use of microwave (µwave) energy in chemical synthesis has been impressive over the past decade, with many reports incorporating µwave-based reactions. Two of the major benefits of using µwave heating are the remarkable decrease in reaction times and often high yield of products in comparison with classical heating, an ideal technology for synthetic chemists. Herein, we highlight some exciting examples of its recent utility in organic, medicinal, and natural product synthetic endeavours.
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12
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Synthesis and evaluation of highly potent GABA(A) receptor antagonists based on gabazine (SR-95531). Bioorg Med Chem Lett 2011; 21:4252-4. [PMID: 21664131 DOI: 10.1016/j.bmcl.2011.05.067] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 05/16/2011] [Accepted: 05/18/2011] [Indexed: 01/24/2023]
Abstract
A selection of highly potent analogues based on the gabazine structure is described. Their syntheses are carried out in just four steps, and their potencies for antagonism at the GABA(A) receptor were measured. All antagonists showed significantly higher potencies compared to the parent competitive antagonist, gabazine.
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