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Qneibi M, Bdir S, Bdair M, Aldwaik SA, Sandouka D, Heeh M, Idais TI. AMPA receptor neurotransmission and therapeutic applications: A comprehensive review of their multifaceted modulation. Eur J Med Chem 2024; 266:116151. [PMID: 38237342 DOI: 10.1016/j.ejmech.2024.116151] [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: 12/14/2023] [Revised: 01/02/2024] [Accepted: 01/11/2024] [Indexed: 02/05/2024]
Abstract
The neuropharmacological community has shown a strong interest in AMPA receptors as critical components of excitatory synaptic transmission during the last fifteen years. AMPA receptors, members of the ionotropic glutamate receptor family, allow rapid excitatory neurotransmission in the brain. AMPA receptors, which are permeable to sodium and potassium ions, manage the bulk of the brain's rapid synaptic communications. This study thoroughly examines the recent developments in AMPA receptor regulation, focusing on a shift from single chemical illustrations to a more extensive investigation of underlying processes. The complex interplay of these modulators in modifying the function and structure of AMPA receptors is the main focus, providing insight into their influence on the speed of excitatory neurotransmission. This research emphasizes the potential of AMPA receptor modulation as a therapy for various neurological disorders such as epilepsy and Alzheimer's disease. Analyzing these regulators' sophisticated molecular details enhances our comprehension of neuropharmacology, representing a significant advancement in using AMPA receptors for treating intricate neurological conditions.
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Affiliation(s)
- Mohammad Qneibi
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
| | - Sosana Bdir
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Mohammad Bdair
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Samia Ammar Aldwaik
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Dana Sandouka
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | | | - Tala Iyad Idais
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
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2
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Elwood JL, Henry MC, Lopez-Fernandez JD, Mowat JM, Boyle M, Buist B, Livingstone K, Jamieson C. Functionalized Tetrazoles as Latent Active Esters in the Synthesis of Amide Bonds. Org Lett 2022; 24:9491-9496. [PMID: 36524745 PMCID: PMC9806851 DOI: 10.1021/acs.orglett.2c03971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report the use of N-2,4-dinitrophenyltetrazoles as latent active esters (LAEs) in the synthesis of amide bonds. Activating the tetrazole generates an HOBt-type active ester without the requirement for exogenous coupling agents. The methodology was widely applicable to a range of substrates, with up to quantitative yields obtained. The versatility and functional group tolerance were exemplified with the one-step synthesis of various pharmaceutical agents and the N-acylation of resin-bound peptides.
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3
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Golubeva EA, Lavrov MI, Radchenko EV, Palyulin VA. Diversity of AMPA Receptor Ligands: Chemotypes, Binding Modes, Mechanisms of Action, and Therapeutic Effects. Biomolecules 2022; 13:biom13010056. [PMID: 36671441 PMCID: PMC9856200 DOI: 10.3390/biom13010056] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
L-Glutamic acid is the main excitatory neurotransmitter in the central nervous system (CNS). Its associated receptors localized on neuronal and non-neuronal cells mediate rapid excitatory synaptic transmission in the CNS and regulate a wide range of processes in the brain, spinal cord, retina, and peripheral nervous system. In particular, the glutamate receptors selective to α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) also play an important role in numerous neurological disorders and attract close attention as targets for the creation of new classes of drugs for the treatment or substantial correction of a number of serious neurodegenerative and neuropsychiatric diseases. For this reason, the search for various types of AMPA receptor ligands and studies of their properties are attracting considerable attention both in academic institutions and in pharmaceutical companies around the world. This review focuses mainly on the advances in this area published since 2017. Particular attention is paid to the structural diversity of new chemotypes of agonists, competitive AMPA receptor antagonists, positive and negative allosteric modulators, transmembrane AMPA regulatory protein (TARP) dependent allosteric modulators, ion channel blockers as well as their binding sites. This review also presents the studies of the mechanisms of action of AMPA receptor ligands that mediate their therapeutic effects.
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Shyni V, Leenaraj DR, Ittyachan R, Shyju GJ, Joseph L, Sajan D. Spectroscopic studies, quantum chemical investigations, and in silico and in vitro scrutiny of the diuretic drug trichlormethiazide adsorbed on AuNPs. J Mol Recognit 2021; 35:e2939. [PMID: 34850458 DOI: 10.1002/jmr.2939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/26/2021] [Accepted: 09/14/2021] [Indexed: 11/09/2022]
Abstract
Experimental and theoretical study was employed to study the adsorption of the diuretic drug, trichlormethiazide (TCM) molecule on AuNPs (TCMA). The stereoelectronic properties of the molecular structure of most stable conformers of TCM and TCMA were studied using DFT/B3LYP-6-311++G (d, p) together with LANL2DZ methodology. The Fourier transform Raman and Infrared spectra of TCM were recorded and analyzed. Quantum chemical calculations of TCM and TCMA molecules were used to evaluate the stability of the molecule, hyper-conjugative interactions, electron delocalization, and binding interactions. The calculated and experimentally observed vibrational frequencies of the molecule were assigned and compared. The shifting and intensity enhancement of the CCl2 band manifests the back-donation and conjugation effect, which are the result of the presence of nitrogen atom adjoining the dichloromethyl groups and the oxygen in the sulfur dioxide group attached among the amino group and the chlorophenyl ring, respectively, which enhances bioactivity. Anticancer activity was examined based on molecular docking analysis, and it was identified that TCM and TCMA molecules act as good inhibitors against lung cancer. SERS analysis and MTT assay confirmed the molecular docking analysis results.
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Affiliation(s)
- V Shyni
- Centre for Advanced Functional Materials, Department of Physics, Bishop Moore College, Mavelikara, India
| | - D R Leenaraj
- Department of Physics, Mar Ivanios College, Thiruvananthapuram, India
| | - Reena Ittyachan
- Department of Physics, Sacred Heart College, Chalakudy, India
| | - G J Shyju
- Department of Physics, Christian College, Thiruvananthapuram, India
| | - Lynnette Joseph
- Centre for Advanced Functional Materials, Department of Physics, Bishop Moore College, Mavelikara, India
| | - D Sajan
- Centre for Advanced Functional Materials, Department of Physics, Bishop Moore College, Mavelikara, India
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Sanad MH, Rizvi SFA, Farag AB. Synthesis, characterization, and bioevaluation of 99mTc nitrido-oxiracetam as a brain imaging model. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-0003] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Abstract
In this work, the radiotracer [99mTc]nitrido-oxiracetam complex was labeled in the presence of 99mTc-nitrido as a core. In order to get the highest radiochemical purity, many effective factors have been studied such as temperature of the reaction, time of the reaction, the pH of the reaction mixture, substrate amount, and stability to give high percent more than 99%. Finally, biodistribution studies have been indicated the convenience of [99mTc]nitrido-oxiracetam as a new radiotracer that could be used in brain imaging. Giving a maximum uptake of 10.6% at 30 min post injection.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - S. F. A. Rizvi
- College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, Gansu , P. R. China
| | - A. B. Farag
- Pharmaceutical Chemistry Department , Faculty of Pharmacy, Ahram Canadian University , Giza , Egypt
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6
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Shen M, Lv D, Li S, Zhang Y, Wang Z, Zhao C, Chen X, Wang C. Positive Allosteric Modulation of AMPAR by PF-4778574 Produced Rapid Onset Antidepressant Actions in Mice. Cereb Cortex 2020; 29:4438-4451. [PMID: 30566581 DOI: 10.1093/cercor/bhy324] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/20/2018] [Accepted: 11/26/2018] [Indexed: 01/30/2023] Open
Abstract
It has been reported that fast-acting antidepressants enhance glutamatergic neurotransmission in the prefrontal cortex (PFC) regions via alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) activation. However, the precise mechanisms underlying the fast-acting antidepressants lead to an activation of AMPAR pathways remain largely unclear. To address this issue, a novel AMPAR positive allosteric agonist, PF-4778574, was used to test the rapid effects and the role of VGF (nonacronymic)/brain-derived neurotrophic factor (BDNF)/tropomyosin receptor kinase B (TrkB)/AKT signaling in these actions in mice. We found that PF-4778574 rapidly alleviated chronic unpredictable stress-induced depression-like behaviors in a concentration-dependent manner. In addition, knock down of vesicular glutamate transporter 1 (VGLUT1) in the PFC of mice induced depression-like behaviors, whereas treatment with PF-4778574 was sufficient to alleviate it, indicating a presynaptic VGLUT1 independent effect. Furthermore, we demonstrate that pharmacological inhibitors of AMPAR or of L-type voltage-dependent Ca2+ channel (L-VDCC) blocked the antidepressants' effect on behaviors and the upregulation on the AMPAR-mediated VGF/BDNF/TrkB/AKT signaling of PF-4778574. Together, our findings indicate that postsynaptic AMPAR activation followed by activation of L-VDCC and subsequent VGF/BDNF/TrkB/AKT signaling are required for the rapid antidepressant effects of PF-4778574. Our data support a promising therapeutic profile for PF-4778574 as a new fast-acting antidepressant.
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Affiliation(s)
- Mengxin Shen
- Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China
| | - Dan Lv
- Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China
| | - Shuting Li
- Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China
| | - Yanhua Zhang
- Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China
| | - Zhen Wang
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Chiyu Zhao
- Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China
| | - Xuejie Chen
- Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China
| | - Chuang Wang
- Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, Zhejiang, China
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Vyunova TV, Andreeva LA, Shevchenko KV, Grigoriev VV, Palyulin VA, Lavrov MI, Bondarenko EV, Kalashnikova EE, Myasoedov NF. Characterization of a New Positive Allosteric Modulator of AMPA Receptors - PAM-43: Specific Binding of the Ligand and its Ability to Potentiate AMPAR Currents. Curr Mol Pharmacol 2020; 13:216-223. [PMID: 32124706 DOI: 10.2174/1874467213666200303140834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/19/2019] [Accepted: 12/11/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Currently, the most dynamic areas in the glutamate receptor system neurobiology are the identification and development of positive allosteric modulators (PAMs) of glutamate ionotropic receptors. PAM-based drugs are of great interest as promising candidates for the treatment of neurological diseases, such as epilepsy, Alzheimer's disease, schizophrenia, etc. Understanding the molecular mechanisms underlying the biological action of natural and synthetic PAMs is a key point for modifying the original chemical compounds as well as for new drug design. OBJECTIVE We are trying to elaborate a system of molecular functional screening of ionotropic glutamate receptor probable PAMs. METHODS The system will be based on the radioligand - receptor method of analysis and will allow rapid quantification of new AMPAR probable PAMs molecular activity. We plan to use a tritiumlabeled analogue of recently elaborated ionotropic GluR probable PAM ([3H]PAM-43) as the main radioligand. RESULTS Here, we characterized the specific binding of the ligand and its ability to potentiate ionotropic GluR currents. The existence of at least two different sites of [3H]PAM-43 specific binding has been shown. One of the above sites is glutamate-dependent and is characterized by higher affinity. "Patchclamp" technique showed the ability of PAM-43 to potentiate ionotropic GluR currents in rat cerebellar Purkinje neurons in a concentration-dependent manner. CONCLUSION The possibility of using PAM-43 as a model compound to study different allosteric effects of potential regulatory drugs (AMPAR allosteric regulators) was shown. [3H]PAM-43 based screening system will allow rapid selection of new AMPAR probable PAM structures and quantification of their molecular activity.
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Affiliation(s)
- Tatiana V Vyunova
- Sector of Regulatory Peptides, Department of Chemistry of Physiologically Active Substances, Institute of Molecular Genetics of the Russian Academy of Sciences, Moscow, Russia
| | - Lioudmila A Andreeva
- Sector of Regulatory Peptides, Department of Chemistry of Physiologically Active Substances, Institute of Molecular Genetics of the Russian Academy of Sciences, Moscow, Russia
| | - Konstantin V Shevchenko
- Sector of Regulatory Peptides, Department of Chemistry of Physiologically Active Substances, Institute of Molecular Genetics of the Russian Academy of Sciences, Moscow, Russia
| | - Vladimir V Grigoriev
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, Chernogolovka, Moscow Region, Russia
| | - Vladimir A Palyulin
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, Chernogolovka, Moscow Region, Russia,Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Mstislav I Lavrov
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, Chernogolovka, Moscow Region, Russia,Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | | | - Elena E Kalashnikova
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, Chernogolovka, Moscow Region, Russia
| | - Nikolay F Myasoedov
- Sector of Regulatory Peptides, Department of Chemistry of Physiologically Active Substances, Institute of Molecular Genetics of the Russian Academy of Sciences, Moscow, Russia,The Mental Health Research Center of the Russian Academy of Sciences, Moscow, Russia
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8
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Seifert T, Malo M, Kokkola T, Stéen EJL, Meinander K, Wallén EAA, Jarho EM, Luthman K. A scaffold replacement approach towards new sirtuin 2 inhibitors. Bioorg Med Chem 2020; 28:115231. [PMID: 31848116 DOI: 10.1016/j.bmc.2019.115231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/20/2019] [Accepted: 11/20/2019] [Indexed: 10/25/2022]
Abstract
Sirtuins (SIRT1-SIRT7) are an evolutionary conserved family of NAD+-dependent protein deacylases regulating the acylation state of ε-N-lysine residues of proteins thereby controlling key biological processes. Numerous studies have found association of the aberrant enzymatic activity of SIRTs with various diseases like diabetes, cancer and neurodegenerative disorders. Previously, we have shown that substituted 2-alkyl-chroman-4-one/chromone derivatives can serve as selective inhibitors of SIRT2 possessing an antiproliferative effect in two human cancer cell lines. In this study, we have explored the bioisosteric replacement of the chroman-4-one/chromone core structure with different less lipophilic bicyclic scaffolds to overcome problems associated to poor physiochemical properties due to a highly lipophilic substitution pattern required for achieve a good inhibitory effect. Various new derivatives based on the quinolin-4(1H)-one scaffold, bicyclic secondary sulfonamides or saccharins were synthesized and evaluated for their SIRT inhibitory effect. Among the evaluated scaffolds, the benzothiadiazine-1,1-dioxide-based compounds showed the highest SIRT2 inhibitory activity. Molecular modeling studies gave insight into the binding mode of the new scaffold-replacement analogues.
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Affiliation(s)
- Tina Seifert
- Department of Chemistry and Molecular Biology, Medicinal Chemistry, University of Gothenburg, SE-412 96 Göteborg, Sweden.
| | - Marcus Malo
- Department of Chemistry and Molecular Biology, Medicinal Chemistry, University of Gothenburg, SE-412 96 Göteborg, Sweden
| | - Tarja Kokkola
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - E Johanna L Stéen
- Department of Chemistry and Molecular Biology, Medicinal Chemistry, University of Gothenburg, SE-412 96 Göteborg, Sweden
| | - Kristian Meinander
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI- 00014 Helsinki, Finland
| | - Erik A A Wallén
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI- 00014 Helsinki, Finland
| | - Elina M Jarho
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Kristina Luthman
- Department of Chemistry and Molecular Biology, Medicinal Chemistry, University of Gothenburg, SE-412 96 Göteborg, Sweden
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9
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Lee JY, Krieger JM, Li H, Bahar I. Pharmmaker: Pharmacophore modeling and hit identification based on druggability simulations. Protein Sci 2019; 29:76-86. [PMID: 31576621 PMCID: PMC6933858 DOI: 10.1002/pro.3732] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 12/14/2022]
Abstract
Recent years have seen progress in druggability simulations, that is, molecular dynamics simulations of target proteins in solutions containing drug‐like probe molecules to characterize their drug‐binding abilities, if any. An important consecutive step is to analyze the trajectories to construct pharmacophore models (PMs) to use for virtual screening of libraries of small molecules. While considerable success has been observed in this type of computer‐aided drug discovery, a systematic tool encompassing multiple steps from druggability simulations to pharmacophore modeling, to identifying hits by virtual screening of libraries of compounds, has been lacking. We address this need here by developing a new tool, Pharmmaker, building on the DruGUI module of our ProDy application programming interface. Pharmmaker is composed of a suite of steps: (Step 1) identification of high affinity residues for each probe molecule type; (Step 2) selecting high affinity residues and hot spots in the vicinity of sites identified by DruGUI; (Step 3) ranking of the interactions between high affinity residues and specific probes; (Step 4) obtaining probe binding poses and corresponding protein conformations by collecting top‐ranked snapshots; and (Step 5) using those snapshots for constructing PMs. The PMs are then used as filters for identifying hits in structure‐based virtual screening. Pharmmaker, accessible online at http://prody.csb.pitt.edu/pharmmaker/, can be used in conjunction with other tools available in ProDy.
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Affiliation(s)
- Ji Young Lee
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - James M Krieger
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Hongchun Li
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ivet Bahar
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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10
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Azmanova M, Pitto-Barry A, Barry NPE. Schizophrenia: synthetic strategies and recent advances in drug design. MEDCHEMCOMM 2018; 9:759-782. [PMID: 30108966 PMCID: PMC6072500 DOI: 10.1039/c7md00448f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 03/09/2018] [Indexed: 12/19/2022]
Abstract
Schizophrenia is a complex and unpredictable mental disorder which affects several domains of cognition and behaviour. It is a heterogeneous illness characterised by positive, negative, and cognitive symptoms, often accompanied by signs of depression. In this tutorial review, we discuss recent progress in understanding the target sites and mechanisms of action of second-generation antipsychotic drugs. Progress in identifying and defining target sites has been accelerated recently by advances in neuroscience, and newly developed agents that regulate signalling by the main excitatory neurotransmitters in the brain are surveyed. Examples of novel molecules for the treatment of schizophrenia in preclinical and clinical development and their industrial sponsors are highlighted.
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Affiliation(s)
- Maria Azmanova
- School of Chemistry and Biosciences , University of Bradford , Bradford BD7 1DP , UK . ;
| | - Anaïs Pitto-Barry
- School of Chemistry and Biosciences , University of Bradford , Bradford BD7 1DP , UK . ;
| | - Nicolas P E Barry
- School of Chemistry and Biosciences , University of Bradford , Bradford BD7 1DP , UK . ;
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11
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Attenuation of ketamine-induced impairment in verbal learning and memory in healthy volunteers by the AMPA receptor potentiator PF-04958242. Mol Psychiatry 2017; 22:1633-1640. [PMID: 28242871 DOI: 10.1038/mp.2017.6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/22/2016] [Accepted: 12/19/2016] [Indexed: 01/03/2023]
Abstract
There is a need to develop treatments for cognitive impairment associated with schizophrenia (CIAS). The significant role played by N-methyl-d-aspartate receptors (NMDARs) in both the pathophysiology of schizophrenia and in neuronal plasticity suggests that facilitation of NMDAR function might ameliorate CIAS. One strategy to correct NMDAR hypofunction is to stimulate α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) as AMPAR and NMDAR functioning are coupled and interdependent. In rats and nonhuman primates (NHP), AMPAR potentiators reduce spatial working memory deficits caused by the nonselective NMDAR antagonist ketamine. The current study assessed whether the AMPAR potentiator PF-04958242 would attenuate ketamine-induced deficits in verbal learning and memory in humans. Healthy male subjects (n=29) participated in two randomized treatment periods of daily placebo or PF-04958242 for 5 days separated by a washout period. On day 5 of each treatment period, subjects underwent a ketamine infusion for 75 min during which the effects of PF-04958242/placebo were assessed on ketamine-induced: (1) impairments in verbal learning and recall measured by the Hopkins Verbal Learning Test; (2) impairments in working memory on a CogState battery; and (3) psychotomimetic effects measured by the Positive and Negative Syndrome Scale and Clinician-Administered Dissociative Symptoms Scale. PF-04958242 significantly reduced ketamine-induced impairments in immediate recall and the 2-Back and spatial working memory tasks (CogState Battery), without significantly attenuating ketamine-induced psychotomimetic effects. There were no pharmacokinetic interactions between PF-04958242 and ketamine. Furthermore, PF-04958242 was well tolerated. 'High-impact' AMPAR potentiators like PF-04958242 may have a role in the treatment of the cognitive symptoms, but not the positive or negative symptoms, associated with schizophrenia. The excellent concordance between the preclinical (rat, NHP) and human studies with PF-04958242, and in silico modeling of AMPAR-NMDAR interactions in the hippocampus, highlights the translational value of this study.
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12
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In silico study and biological evaluation of 99mTc-tricabonyl oxiracetam as a selective imaging probe for AMPA receptors. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-5120-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Citti C, Battisti UM, Cannazza G, Jozwiak K, Stasiak N, Puja G, Ravazzini F, Ciccarella G, Braghiroli D, Parenti C, Troisi L, Zoli M. 7-Chloro-5-(furan-3-yl)-3-methyl-4H-benzo[e][1,2,4]thiadiazine 1,1-Dioxide as Positive Allosteric Modulator of α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid (AMPA) Receptor. The End of the Unsaturated-Inactive Paradigm? ACS Chem Neurosci 2016; 7:149-60. [PMID: 26580317 DOI: 10.1021/acschemneuro.5b00257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
5-Arylbenzothiadiazine type compounds acting as positive allosteric modulators of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPA-PAMs) have received particular attention in the past decade for their nootropic activity and lack of the excitotoxic side effects of direct agonists. Recently, our research group has published the synthesis and biological activity of 7-chloro-5-(3-furanyl)-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide (1), one of the most active benzothiadiazine-derived AMPA-PAMs in vitro to date. However, 1 exists as two stereolabile enantiomers, which rapidly racemize in physiological conditions, and only one isomer is responsible for the pharmacological activity. In the present work, experiments carried out with rat liver microsomes show that 1 is converted by hepatic cytochrome P450 to the corresponding unsaturated derivative 2 and to the corresponding pharmacologically inactive benzenesulfonamide 3. Surprisingly, patch-clamp experiments reveal that 2 displays an activity comparable to that of the parent compound. Molecular modeling studies were performed to rationalize these results. Furthermore, mice cerebral microdialysis studies suggest that 2 is able to cross the blood-brain barrier and increases acetylcholine and serotonin levels in the hippocampus. The experimental data disclose that the achiral hepatic metabolite 2 possesses the same pharmacological activity of its parent compound 1 but with an enhanced chemical and stereochemical stability, as well as an improved pharmacokinetic profile compared with 1.
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Affiliation(s)
- Cinzia Citti
- Dipartimento
di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via per Monteroni, 73100 Lecce, Italy
- CNR
NANOTEC, Campus Ecoteckne dell’Università del Salento, Via per
Monteroni, 73100 Lecce, Italy
| | - Umberto M. Battisti
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Department
of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Giuseppe Cannazza
- CNR
NANOTEC, Campus Ecoteckne dell’Università del Salento, Via per
Monteroni, 73100 Lecce, Italy
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Krzysztof Jozwiak
- Laboratory
of Biopharmacy, Department of Chemistry, Medical University of Lublin, ul. W. Chodzki 4a, 20-093 Lublin, Poland
| | - Natalia Stasiak
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Giulia Puja
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Federica Ravazzini
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Giuseppe Ciccarella
- Dipartimento
di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via per Monteroni, 73100 Lecce, Italy
- CNR
NANOTEC, Campus Ecoteckne dell’Università del Salento, Via per
Monteroni, 73100 Lecce, Italy
| | - Daniela Braghiroli
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Carlo Parenti
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Luigino Troisi
- Dipartimento
di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via per Monteroni, 73100 Lecce, Italy
| | - Michele Zoli
- Dipartimento
di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Campi 287, 41125 Modena, Italy
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AMPA receptor-positive allosteric modulators for the treatment of schizophrenia: an overview of recent patent applications. Future Med Chem 2016; 7:473-91. [PMID: 25875874 DOI: 10.4155/fmc.15.4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The role of glutamate and its receptors in central nervous system biology and disease has long been of interest to scientists involved in both fundamental research and drug discovery, however the complex pharmacology and lack of highly selective compounds has severely hampered drug discovery efforts in this area. Recent advances in the identification and profiling of positive allosteric modulators of the AMPA receptor offer a potential way forward and the hope of a new treatment for schizophrenia. This article will review recent patent applications published in this area.
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15
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Shaffer CL, Patel NC, Schwarz J, Scialis RJ, Wei Y, Hou XJ, Xie L, Karki K, Bryce DK, Osgood SM, Hoffmann WE, Lazzaro JT, Chang C, McGinnis DF, Lotarski SM, Liu J, Obach RS, Weber ML, Chen L, Zasadny KR, Seymour PA, Schmidt CJ, Hajós M, Hurst RS, Pandit J, O'Donnell CJ. The discovery and characterization of the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor potentiator N-{(3S,4S)-4-[4-(5-cyano-2-thienyl)phenoxy]tetrahydrofuran-3-yl}propane-2-sulfonamide (PF-04958242). J Med Chem 2015; 58:4291-308. [PMID: 25905800 DOI: 10.1021/acs.jmedchem.5b00300] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A unique tetrahydrofuran ether class of highly potent α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor potentiators has been identified using rational and structure-based drug design. An acyclic lead compound, containing an ether-linked isopropylsulfonamide and biphenyl group, was pharmacologically augmented by converting it to a conformationally constrained tetrahydrofuran to improve key interactions with the human GluA2 ligand-binding domain. Subsequent replacement of the distal phenyl motif with 2-cyanothiophene to enhance its potency, selectivity, and metabolic stability afforded N-{(3S,4S)-4-[4-(5-cyano-2-thienyl)phenoxy]tetrahydrofuran-3-yl}propane-2-sulfonamide (PF-04958242, 3), whose preclinical characterization suggests an adequate therapeutic index, aided by low projected human oral pharmacokinetic variability, for clinical studies exploring its ability to attenuate cognitive deficits in patients with schizophrenia.
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16
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Caldwell N, Harms JE, Partin KM, Jamieson C. Rational Design of a Novel AMPA Receptor Modulator through a Hybridization Approach. ACS Med Chem Lett 2015; 6:392-6. [PMID: 25893038 DOI: 10.1021/ml5004553] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 02/11/2015] [Indexed: 12/22/2022] Open
Abstract
The α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors are a family of glutamate ion channels of considerable interest in excitatory neurotransmission and associated disease processes. Here, we demonstrate how exploitation of the available X-ray crystal structure of the receptor ligand binding domain enabled the development of a new class of AMPA receptor positive allosteric modulators (7) through hybridization of known ligands (5 and 6), leading to a novel chemotype with promising pharmacological properties.
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Affiliation(s)
- Nicola Caldwell
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Jonathan E. Harms
- Department
of Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523-1617, United States
| | - Kathryn M. Partin
- Department
of Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523-1617, United States
| | - Craig Jamieson
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
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17
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Carrozzo MM, Battisti UM, Cannazza G, Puia G, Ravazzini F, Falchicchio A, Perrone S, Citti C, Jozwiak K, Braghiroli D, Parenti C, Troisi L. Design, stereoselective synthesis, configurational stability and biological activity of 7-chloro-9-(furan-3-yl)-2,3,3a,4-tetrahydro-1H-benzo[e]pyrrolo[2,1-c][1,2,4]thiadiazine 5,5-dioxide. Bioorg Med Chem 2014; 22:4667-76. [DOI: 10.1016/j.bmc.2014.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 07/10/2014] [Accepted: 07/11/2014] [Indexed: 11/30/2022]
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19
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Patel NC, Schwarz J, Hou XJ, Hoover DJ, Xie L, Fliri AJ, Gallaschun RJ, Lazzaro JT, Bryce DK, Hoffmann WE, Hanks AN, McGinnis D, Marr ES, Gazard JL, Hajós M, Scialis RJ, Hurst RS, Shaffer CL, Pandit J, O’Donnell CJ. Discovery and Characterization of a Novel Dihydroisoxazole Class of α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) Receptor Potentiators. J Med Chem 2013; 56:9180-91. [DOI: 10.1021/jm401274b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nandini C. Patel
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jacob Schwarz
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Xinjun J. Hou
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Dennis J. Hoover
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Longfei Xie
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Anton J. Fliri
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Randall J. Gallaschun
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - John T. Lazzaro
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Dianne K. Bryce
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - William E. Hoffmann
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Ashley N. Hanks
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Dina McGinnis
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Eric S. Marr
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Justin L. Gazard
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Mihály Hajós
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Renato J. Scialis
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Raymond S. Hurst
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Christopher L. Shaffer
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jayvardhan Pandit
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Christopher J. O’Donnell
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
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20
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Shaffer CL, Hurst RS, Scialis RJ, Osgood SM, Bryce DK, Hoffmann WE, Lazzaro JT, Hanks AN, Lotarski S, Weber ML, Liu J, Menniti FS, Schmidt CJ, Hajós M. Positive allosteric modulation of AMPA receptors from efficacy to toxicity: the interspecies exposure-response continuum of the novel potentiator PF-4778574. J Pharmacol Exp Ther 2013; 347:212-24. [PMID: 23899905 DOI: 10.1124/jpet.113.204735] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) positive allosteric modulation (i.e., "potentiation") has been proposed to overcome cognitive impairments in schizophrenia, but AMPAR overstimulation can be excitotoxic. Thus, it is critical to define carefully a potentiator's mechanism-based therapeutic index (TI) and to determine confidently its translatability from rodents to higher-order species. Accordingly, the novel AMPAR potentiator N-{(3R,4S)-3-[4-(5-cyano-2-thienyl)phenyl]tetrahydro-2H-pyran-4-yl}propane-2-sulfonamide (PF-4778574) was characterized in a series of in vitro assays and single-dose animal studies evaluating AMPAR-mediated activities related to cognition and safety to afford an unbound brain compound concentration (Cb,u)-normalized interspecies exposure-response relationship. Because it is unknown which AMPAR subtype(s) may be selectively potentiated for an optimal TI, PF-4778574 binding affinity and functional potency were determined in rodent tissues expected to express a native mixture of AMPAR subunits and their associated proteins to afford composite pharmacological values. Functional activity was also quantified in recombinant cell lines stably expressing human GluA2 flip or flop homotetramers. Procognitive effects of PF-4778574 were evaluated in both rat electrophysiological and nonhuman primate (nhp) behavioral models of pharmacologically induced N-methyl-d-aspartate receptor hypofunction. Safety studies assessed cerebellum-based AMPAR activation (mouse) and motor coordination disruptions (mouse, dog, and nhp), as well as convulsion (mouse, rat, and dog). The resulting empirically derived exposure-response continuum for PF-4778574 defines a single-dose-based TI of 8- to 16-fold for self-limiting tremor, a readily monitorable clinical adverse event. Importantly, the Cb,u mediating each physiological effect were highly consistent across species, with efficacy and convulsion occurring at just fractions of the in vitro-derived pharmacological values.
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Affiliation(s)
- Christopher L Shaffer
- Department of Pharmacokinetics, Pharmacodynamics and Metabolism (C.L.S., R.J.S., S.M.O., J.L.) and the Neuroscience Research Unit (R.S.H., D.K.B., W.E.H., J.T.L., A.N.H., S.L., M.L.W., F.S.M., C.J.S., M.H.), Worldwide Research and Development, Groton Laboratories, Pfizer Inc., Groton, Connecticut
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21
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Siekmeier PJ, vanMaanen DP. Development of antipsychotic medications with novel mechanisms of action based on computational modeling of hippocampal neuropathology. PLoS One 2013; 8:e58607. [PMID: 23526999 PMCID: PMC3602393 DOI: 10.1371/journal.pone.0058607] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 02/05/2013] [Indexed: 12/28/2022] Open
Abstract
A large number of cellular level abnormalities have been identified in the hippocampus of schizophrenic subjects. Nonetheless, it remains uncertain how these pathologies interact at a system level to create clinical symptoms, and this has hindered the development of more effective antipsychotic medications. Using a 72-processor supercomputer, we created a tissue level hippocampal simulation, featuring multicompartmental neuron models with multiple ion channel subtypes and synaptic channels with realistic temporal dynamics. As an index of the schizophrenic phenotype, we used the specific inability of the model to attune to 40 Hz (gamma band) stimulation, a well-characterized abnormality in schizophrenia. We examined several possible combinations of putatively schizophrenogenic cellular lesions by systematically varying model parameters representing NMDA channel function, dendritic spine density, and GABA system integrity, conducting 910 trials in total. Two discrete “clusters” of neuropathological changes were identified. The most robust was characterized by co-occurring modest reductions in NMDA system function (-30%) and dendritic spine density (-30%). Another set of lesions had greater NMDA hypofunction along with low level GABA system dysregulation. To the schizophrenic model, we applied the effects of 1,500 virtual medications, which were implemented by varying five model parameters, independently, in a graded manner; the effects of known drugs were also applied. The simulation accurately distinguished agents that are known to lack clinical efficacy, and identified novel mechanisms (e.g., decrease in AMPA conductance decay time constant, increase in projection strength of calretinin-positive interneurons) and combinations of mechanisms that could re-equilibrate model behavior. These findings shed light on the mechanistic links between schizophrenic neuropathology and the gamma band oscillatory abnormalities observed in the illness. As such, they generate specific falsifiable hypotheses, which can guide postmortem and other laboratory research. Significantly, this work also suggests specific non-obvious targets for potential pharmacologic agents.
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Affiliation(s)
- Peter J Siekmeier
- Laboratory for Computational Neuroscience, McLean Hospital, Belmont, Massachusetts, United States of America.
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22
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Pirotte B, Francotte P, Goffin E, de Tullio P. AMPA receptor positive allosteric modulators: a patent review. Expert Opin Ther Pat 2013; 23:615-28. [DOI: 10.1517/13543776.2013.770840] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Chen H, Wang CZ, Ding C, Wild C, Copits B, Swanson GT, Johnson KM, Zhou J. A combined bioinformatics and chemoinformatics approach for developing asymmetric bivalent AMPA receptor positive allosteric modulators as neuroprotective agents. ChemMedChem 2013; 8:226-30. [PMID: 23281122 PMCID: PMC3733225 DOI: 10.1002/cmdc.201200554] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Indexed: 11/05/2022]
Abstract
PAMs new in town! An effective, combined bioinformatics and chemoinformatics approach was applied to the design of novel asymmetric bivalent α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor positive allosteric modulators (PAMs) with marked potency in vitro and efficacy in vivo for preventing neuroapoptosis. The novel chemotype could provide pharmacological probes and potential therapeutic agents for glutamatergic hypofunction and its related neurological and psychiatric disorders.
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Affiliation(s)
- Haijun Chen
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Cheng Z. Wang
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Chunyong Ding
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Christopher Wild
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Bryan Copits
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago 60611, IL (USA)
| | - Geoffrey T. Swanson
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago 60611, IL (USA)
| | - Kenneth M. Johnson
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
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24
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Carrozzo MM, Battisti UM, Cannazza G, Citti C, Parenti C, Troisi L. Regioselective cyclization of chloroacylaminobenzenesulfonamide derivatives. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Efficient synthesis of 5,6-dihydro-8H-[1,2,4]thiadiazino[6,5,4-de]phenanthridine 4,4-dioxide and 5,6-dihydro-8H-[1,2,4]-thiadiazino[6,5,4-ij]thieno[2,3-c]quinoline 4,4-dioxide. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.12.091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Molecular modeling studies, synthesis, configurational stability and biological activity of 8-chloro-2,3,5,6-tetrahydro-3,6-dimethyl-pyrrolo[1,2,3-de]-1,2,4-benzothiadiazine 1,1-dioxide. Bioorg Med Chem 2011; 19:7111-9. [DOI: 10.1016/j.bmc.2011.09.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 09/28/2011] [Accepted: 09/30/2011] [Indexed: 02/08/2023]
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27
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Mueller R, Rachwal S, Lee S, Zhong S, Li YX, Haroldsen P, Herbst T, Tanimura S, Varney M, Johnson S, Rogers G, Street LJ. Benzotriazinone and benzopyrimidinone derivatives as potent positive allosteric AMPA receptor modulators. Bioorg Med Chem Lett 2011; 21:6170-5. [PMID: 21889339 DOI: 10.1016/j.bmcl.2011.07.098] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 07/25/2011] [Accepted: 07/26/2011] [Indexed: 11/16/2022]
Abstract
AMPA receptors (AMPARs) have been demonstrated to be an important therapeutic CNS target. A series of substituted benzotriazinone and benzopyrimidinone derivatives were prepared with the aim to improve in vivo activity over the previously reported bis-benzoxazinone based AMPAKINE series from our laboratory. These compounds were shown to be potent, positive allosteric AMPAR modulators that have better in vivo activity and improved metabolic stability over the analogous benzoxazinone derivatives.
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Affiliation(s)
- Rudolf Mueller
- Cortex Pharmaceuticals Inc., 15231 Barranca Parkway, Irvine, CA 92618, USA.
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28
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Substituted benzoxazinones as potent positive allosteric AMPA receptor modulators: part II. Bioorg Med Chem Lett 2011; 21:3927-30. [PMID: 21636273 DOI: 10.1016/j.bmcl.2011.05.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 05/06/2011] [Accepted: 05/09/2011] [Indexed: 11/24/2022]
Abstract
AMPA receptors (AMPARs) are an important therapeutic target in the CNS. A series of substituted benzoxazinone derivatives with good to very good in vitro activity as positive allosteric AMPAR modulators was synthesized and evaluated. The appropriate substituent choice on the benzoxazinone fragment improved the affinity towards the AMPA receptor significantly in comparison to our lead molecule CX614.
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29
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Mueller R, Li YX, Hampson A, Zhong S, Harris C, Marrs C, Rachwal S, Ulas J, Nielsson L, Rogers G. Benzoxazinones as potent positive allosteric AMPA receptor modulators: part I. Bioorg Med Chem Lett 2011; 21:3923-6. [PMID: 21636275 DOI: 10.1016/j.bmcl.2011.05.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 05/06/2011] [Accepted: 05/09/2011] [Indexed: 10/18/2022]
Abstract
AMPA receptors (AMPARs) are an increasingly important therapeutic target in the CNS. Aniracetam, the first identified potentiator of AMPARs, led to the rigid and more potent CX614. This lead molecule was optimized in order to increase affinity towards the AMPA receptor. The substitution of the dioxine with a benzoxazinone ring system increased the activity and allowed further investigation of the sidechain SAR.
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Affiliation(s)
- Rudolf Mueller
- Cortex Pharmaceuticals Inc., 15231 Barranca Parkway, Irvine, CA 92618, USA.
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30
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Schober DA, Gill MB, Yu H, Gernert DL, Jeffries MW, Ornstein PL, Kato AS, Felder CC, Bredt DS. Transmembrane AMPA receptor regulatory proteins and cornichon-2 allosterically regulate AMPA receptor antagonists and potentiators. J Biol Chem 2011; 286:13134-42. [PMID: 21343286 DOI: 10.1074/jbc.m110.212522] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
AMPA receptors mediate fast excitatory transmission in the brain. Neuronal AMPA receptors comprise GluA pore-forming principal subunits and can associate with multiple modulatory components, including transmembrane AMPA receptor regulatory proteins (TARPs) and CNIHs (cornichons). AMPA receptor potentiators and non-competitive antagonists represent potential targets for a variety of neuropsychiatric disorders. Previous studies showed that the AMPA receptor antagonist GYKI-53655 displaces binding of a potentiator from brain receptors but not from recombinant GluA subunits. Here, we asked whether AMPA receptor modulatory subunits might resolve this discrepancy. We find that the cerebellar TARP, stargazin (γ-2), enhances the binding affinity of the AMPA receptor potentiator [(3)H]-LY450295 and confers sensitivity to displacement by non-competitive antagonists. In cerebellar membranes from stargazer mice, [(3)H]-LY450295 binding is reduced and relatively resistant to displacement by non-competitive antagonists. Coexpression of AMPA receptors with CNIH-2, which is expressed in the hippocampus and at low levels in the cerebellar Purkinje neurons, confers partial sensitivity of [(3)H]-LY450295 potentiator binding to displacement by non-competitive antagonists. Autoradiography of [(3)H]-LY450295 binding to stargazer and γ-8-deficient mouse brain sections, demonstrates that TARPs regulate the pharmacology of allosteric AMPA potentiators and antagonists in the cerebellum and hippocampus, respectively. These studies demonstrate that accessory proteins define AMPA receptor pharmacology by functionally linking allosteric AMPA receptor potentiator and antagonist sites.
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Affiliation(s)
- Douglas A Schober
- Discovery Neuroscience Research, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana 46285, USA
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31
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Structure based evolution of a novel series of positive modulators of the AMPA receptor. Bioorg Med Chem Lett 2011; 21:805-11. [DOI: 10.1016/j.bmcl.2010.11.098] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 11/18/2010] [Accepted: 11/19/2010] [Indexed: 11/18/2022]
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