G Protein-Coupled Receptors
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Mglu2 Receptor Agonism, but Not Positive Allosteric Modulation, Elicits Rapid Tolerance Towards Their Primary Efficacy on Sleep Measures in Rats
RESEARCH ARTICLE mGlu2 Receptor Agonism, but Not Positive Allosteric Modulation, Elicits Rapid Tolerance towards Their Primary Efficacy on Sleep Measures in Rats Abdallah Ahnaou1*, Hilde Lavreysen1, Gary Tresadern2, Jose M. Cid2, Wilhelmus H. Drinkenburg1 1 Dept. of Neuroscience, Janssen Research & Development, A Division of Janssen Pharmaceutica N.V., Turnhoutseweg 30, B-2340, Beerse, Belgium, 2 Neuroscience Medicinal Chemistry, Janssen Research & Development, Janssen-Cilag S.A., Jarama 75, Polígono Industrial, 45007, Toledo, Spain * [email protected] Abstract OPEN ACCESS G-protein-coupled receptor (GPCR) agonists are known to induce both cellular adaptations Citation: Ahnaou A, Lavreysen H, Tresadern G, Cid resulting in tolerance to therapeutic effects and withdrawal symptoms upon treatment dis- JM, Drinkenburg WH (2015) mGlu2 Receptor continuation. Glutamate neurotransmission is an integral part of sleep-wake mechanisms, Agonism, but Not Positive Allosteric Modulation, Elicits Rapid Tolerance towards Their Primary which processes have translational relevance for central activity and target engagement. Efficacy on Sleep Measures in Rats. PLoS ONE 10 Here, we investigated the efficacy and tolerance potential of the metabotropic glutamate (12): e0144017. doi:10.1371/journal.pone.0144017 receptors (mGluR2/3) agonist LY354740 versus mGluR2 positive allosteric modulator Editor: James Porter, University of North Dakota, (PAM) JNJ-42153605 on sleep-wake organisation in rats. In vitro, the selectivity and UNITED STATES potency of JNJ-42153605 were characterized. In vivo, effects on sleep measures were Received: July 12, 2015 investigated in rats after once daily oral repeated treatment for 7 days, withdrawal and con- Accepted: November 12, 2015 secutive re-administration of LY354740 (1–10 mg/kg) and JNJ-42153605 (3–30 mg/kg). -
Determining the Role of Gabaergic Signaling in The
DETERMINING THE ROLE OF GABAERGIC SIGNALING IN THE CRANIOFACIAL DEVELOPMENT OF LARVAL ZEBRAFISH by LINDSEY L. BEEBE (Under the Direction of James D. Lauderdale) ABSTRACT Although best known as an inhibitory neurotransmitter, intriguing evidence has implicated GABA as a key signaling molecule in craniofacial development in mammals. Glutamate is converted to GABA by an enzyme called glutamic acid decarboxylase (GAD), which exists in two isoforms, GAD67 and GAD65. The GAD1 and GAD2 genes encode these isoforms, respectively. A decrease in GAD activity in the human brain is often associated with epilepsy, schizophrenia and related neurological disorders. In mice and humans, mutations in gad1, but not gad2, result in defects in palate development, and mutations in the Gabrb3 gene, which encodes the β3 subunit of the GABAA receptor, exhibit a comparable phenotype to gad1 mutations. These results suggest that GABA signaling, through the GABAA receptor, can play an important and conserved role in craniofacial development. However, the mechanism of this process is not known and cannot be easily investigated in a mammalian system. In this work, translation-blocking morpholinos against the GAD genes were used to alter expression within the larval zebrafish. While gad2 morphants looked phenotypically normal, gad1 morphant animals exhibited altered cranial structures at 1 and 7 dpf. Yet, both gad1 and gad2 morphants exhibited spontaneous seizure-like neural activity. Through the use of photoactivatable caged-morpholinos, the craniofacial deformities could be bypassed when photolysis was carried out at 24 hpf. Electrophysiological recordings showed that while dark-raised CyHQ-gad1 morphant animals looked phenotypically comparable to wild-type animals, they exhibited abnormal, seizure-like neural activity. -
(12) Patent Application Publication (10) Pub. No.: US 2017/0020892 A1 Thompson Et Al
US 20170020892A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2017/0020892 A1 Thompson et al. (43) Pub. Date: Jan. 26, 2017 (54) USE OF NEGATIVE MODULATORS OF Related U.S. Application Data GABA RECEPTORS CONTAINING ALPHAS SUBUNITS AS FAST ACTING (60) Provisional application No. 61/972,446, filed on Mar. ANTDEPRESSANTS 31, 2014. (71) Applicant: University of Maryland, Baltimore, Publication Classification Baltimore, MD (US) (51) Int. Cl. A 6LX 3/557 (2006.01) (72) Inventors: Scott Thompson, Baltimore, MD (US); A6II 3/53 (2006.01) Mark D. Kvarta, Ellicott City, MD A6II 45/06 (2006.01) (US); Adam Van Dyke, Baltimore, MD (52) U.S. Cl. (US) CPC ........... A61 K3I/55.17 (2013.01); A61K 45/06 (2013.01); A61 K3I/53 (2013.01) (73) Assignee: University of Maryland, Baltimore, Baltimore, MD (US) (57) ABSTRACT Embodiments of the disclosure include methods and com (21) Appl. No.: 15/300,984 positions related to treatment of one or more medical conditions with one or more negative modulators of GABA (22) PCT Filed: Mar. 31, 2015 receptors. In specific embodiments, depression and/or Sui cidability is treated or ameliorated or prevented with one or (86) PCT No.: PCT/US2O15/023667 more negative modulators of GABA receptors, such as a S 371 (c)(1), partial inverse agonist of a GABA receptor comprising an (2) Date: Sep. 30, 2016 alpha5 subunit. Patent Application Publication Jan. 26, 2017. Sheet 1 of 12 US 2017/002O892 A1 ×1/ /|\ Patent Application Publication Jan. 26, 2017. Sheet 3 of 12 US 2017/002O892 A1 & Patent Application Publication Jan. -
Neurotransmitters-Drugs Andbrain Function.Pdf
Neurotransmitters, Drugs and Brain Function. Edited by Roy Webster Copyright & 2001 John Wiley & Sons Ltd ISBN: Hardback 0-471-97819-1 Paperback 0-471-98586-4 Electronic 0-470-84657-7 Neurotransmitters, Drugs and Brain Function Neurotransmitters, Drugs and Brain Function. Edited by Roy Webster Copyright & 2001 John Wiley & Sons Ltd ISBN: Hardback 0-471-97819-1 Paperback 0-471-98586-4 Electronic 0-470-84657-7 Neurotransmitters, Drugs and Brain Function Edited by R. A. Webster Department of Pharmacology, University College London, UK JOHN WILEY & SONS, LTD Chichester Á New York Á Weinheim Á Brisbane Á Singapore Á Toronto Neurotransmitters, Drugs and Brain Function. Edited by Roy Webster Copyright & 2001 John Wiley & Sons Ltd ISBN: Hardback 0-471-97819-1 Paperback 0-471-98586-4 Electronic 0-470-84657-7 Copyright # 2001 by John Wiley & Sons Ltd. Bans Lane, Chichester, West Sussex PO19 1UD, UK National 01243 779777 International ++44) 1243 779777 e-mail +for orders and customer service enquiries): [email protected] Visit our Home Page on: http://www.wiley.co.uk or http://www.wiley.com All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London W1P0LP,UK, without the permission in writing of the publisher. Other Wiley Editorial Oces John Wiley & Sons, Inc., 605 Third Avenue, New York, NY 10158-0012, USA WILEY-VCH Verlag GmbH, Pappelallee 3, D-69469 Weinheim, Germany John Wiley & Sons Australia, Ltd. -
GABA Receptors
D Reviews • BIOTREND Reviews • BIOTREND Reviews • BIOTREND Reviews • BIOTREND Reviews Review No.7 / 1-2011 GABA receptors Wolfgang Froestl , CNS & Chemistry Expert, AC Immune SA, PSE Building B - EPFL, CH-1015 Lausanne, Phone: +41 21 693 91 43, FAX: +41 21 693 91 20, E-mail: [email protected] GABA Activation of the GABA A receptor leads to an influx of chloride GABA ( -aminobutyric acid; Figure 1) is the most important and ions and to a hyperpolarization of the membrane. 16 subunits with γ most abundant inhibitory neurotransmitter in the mammalian molecular weights between 50 and 65 kD have been identified brain 1,2 , where it was first discovered in 1950 3-5 . It is a small achiral so far, 6 subunits, 3 subunits, 3 subunits, and the , , α β γ δ ε θ molecule with molecular weight of 103 g/mol and high water solu - and subunits 8,9 . π bility. At 25°C one gram of water can dissolve 1.3 grams of GABA. 2 Such a hydrophilic molecule (log P = -2.13, PSA = 63.3 Å ) cannot In the meantime all GABA A receptor binding sites have been eluci - cross the blood brain barrier. It is produced in the brain by decarb- dated in great detail. The GABA site is located at the interface oxylation of L-glutamic acid by the enzyme glutamic acid decarb- between and subunits. Benzodiazepines interact with subunit α β oxylase (GAD, EC 4.1.1.15). It is a neutral amino acid with pK = combinations ( ) ( ) , which is the most abundant combi - 1 α1 2 β2 2 γ2 4.23 and pK = 10.43. -
Cell Surface Mobility of GABAB Receptors Saad Bin
Cell surface mobility of GABAB receptors Saad Bin Hannan September 2011 A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy of the University College London Department of Neuroscience, Physiology, and Pharmacology University College London Gower Street London WC1E 6BT UK Declaration ii ‘I, Saad Hannan confirm that the work presented in this thesis is my own. Where information has been derived from other sources, I confirm that this has been indicated in the thesis.' ____________________ Saad Hannan September 2011 To Ammu, Abbu, Polu Abstract ivi Abstract Type-B γ-aminobutyric acid receptors (GABABRs) are important for mediating slow inhibition in the central nervous system and the kinetics of their internalisation and lateral mobility will be a major determinant of their signalling efficacy. Functional GABABRs require R1 and R2 subunit co-assembly, but how heterodimerisation affects the trafficking kinetics of GABABRs is unknown. Here, an α- bungarotoxin binding site (BBS) was inserted into the N-terminus of R2 to monitor receptor mobility in live cells. GABABRs are internalised via clathrin- and dynamin- dependent pathways and recruited to endosomes. By mutating the BBS, a new technique was developed to differentially track R1a and R2 simultaneously, revealing the subunits internalise as heteromers and that R2 dominantly-affects constitutive internalisation of GABABRs. Notably, the internalisation profile of R1aR2 heteromers, but not R1a homomers devoid of their ER retention motif (R1ASA), is similar to R2 homomers in heterologous systems. The internalisation of R1aASA was slowed to that of R2 by mutating a di-leucine motif in the R1 C-terminus, indicating a new role for heterodimerisation, whereby R2 subunits slow the internalization of surface GABABRs. -
Conformational Dynamics Between Transmembrane Domains And
RESEARCH ARTICLE Conformational dynamics between transmembrane domains and allosteric modulation of a metabotropic glutamate receptor Vanessa A Gutzeit1, Jordana Thibado2, Daniel Starer Stor2, Zhou Zhou3, Scott C Blanchard2,3,4, Olaf S Andersen2,3, Joshua Levitz2,4,5* 1Neuroscience Graduate Program, Weill Cornell Graduate School of Medical Sciences, New York, United States; 2Physiology, Biophysics and Systems Biology Graduate Program, Weill Cornell Graduate School of Medical Sciences, New York, United States; 3Department of Physiology and Biophysics, Weill Cornell Medicine, New York, United States; 4Tri-Institutional PhD Program in Chemical Biology, New York, United States; 5Department of Biochemistry, Weill Cornell Medicine, New York, United States Abstract Metabotropic glutamate receptors (mGluRs) are class C, synaptic G-protein-coupled receptors (GPCRs) that contain large extracellular ligand binding domains (LBDs) and form constitutive dimers. Despite the existence of a detailed picture of inter-LBD conformational dynamics and structural snapshots of both isolated domains and full-length receptors, it remains unclear how mGluR activation proceeds at the level of the transmembrane domains (TMDs) and how TMD-targeting allosteric drugs exert their effects. Here, we use time-resolved functional and conformational assays to dissect the mechanisms by which allosteric drugs activate and modulate mGluR2. Single-molecule subunit counting and inter-TMD fluorescence resonance energy transfer *For correspondence: measurements in living cells -
(12) Patent Application Publication (10) Pub. No.: US 2005/0215521 A1 Lalji Et Al
US 20050215521A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2005/0215521 A1 Lalji et al. (43) Pub. Date: Sep. 29, 2005 (54) MODAFINIL COMBINATION THERAPY FOR Publication Classification IMPROVING SLEEP QUALITY (51) Int. Cl.' .................. A61K 31/724; A61K 31/7008; (76) Inventors: Karim Lalji, Sudbury, MA (US); A61K 31/4164; A61K 31/195; Timothy J. Barberich, Concord, MA A61K 31/165 (US) (52) U.S. Cl. ............................ 514/58; 514/221; 514/389; 514/561; 514/557; 514/23; Correspondence Address: 514/618; 514/469 FOLEY HOAG, LLP PATENT GROUP, WORLD TRADE CENTER WEST (57) ABSTRACT 155 SEAPORT BLVD One aspect of the present invention relates to pharmaceutical BOSTON, MA 02110 (US) compositions comprising a compound that modulates the orexin System and a Sedative agent. In a preferred embodi (21) Appl. No.: 11/018,869 ment, the compound that modulates the orexin System is (22) Filed: Dec. 21, 2004 modafinil and the Sedative agent is eSZopiclone. The phar maceutical compositions of the invention are useful in the Related U.S. Application Data treatment of various sleep disorders. In addition, the present invention relates to a method of treating a patient Suffering (60) Provisional application No. 60/531,822, filed on Dec. from a sleep abnormality or insomnia comprising adminis 22, 2003. Provisional application No. 60/541,684, tering a therapeutically effective amount of a pharmaceutical filed on Feb. 4, 2004. composition of the invention. Patent Application Publication Sep. 29, 2005 Sheet 1 of 2 US 2005/0215521 A1 Figure 1 (RS)-Zopiclone D-Malic Acid Acetone Mixing/Heating Methanol Methanol-DCooling/Crystallizatio (S)-Zopiclone D-Malate See Methanol Filtration/Washing Mother Liquors/Washes -Ge IPC (S)-Zopiclone D-Malate Patent Application Publication Sep. -
Enhanced Dendritic Inhibition and Impaired NMDAR Activation in a Mouse Model of Down Syndrome
This Accepted Manuscript has not been copyedited and formatted. The final version may differ from this version. Research Articles: Neurobiology of Disease Enhanced dendritic inhibition and impaired NMDAR activation in a mouse model of Down syndrome Jan M. Schulz1, Frederic Knoflach2, Maria-Clemencia Hernandez2 and Josef Bischofberger1 1Department of Biomedicine, University of Basel, Pestalozzistr. 20, CH-4056 Basel, Switzerland 2Pharma Research and Early Development, Discovery Neuroscience Department, F. Hoffmann-La Roche Ltd, Basel, Switzerland https://doi.org/10.1523/JNEUROSCI.2723-18.2019 Received: 22 October 2018 Revised: 9 April 2019 Accepted: 10 April 2019 Published: 18 April 2019 Author contributions: J.M.S., M.C.H., and J.B. designed research; J.M.S. and F.K. performed research; J.M.S. analyzed data; J.M.S. and J.B. wrote the first draft of the paper; J.M.S. and J.B. wrote the paper; F.K., M.C.H., and J.B. edited the paper. Conflict of Interest: The authors declare no competing financial interests. We would like to thank Tom Otis for helpful comments on the manuscript. We thank Selma Becherer and Martine Schwager for mouse genotyping, histochemical stainings and technical assistance, Marie-Claire Pflimlin for some electrophysiological recordings and Andrew Thomas for RO4938581 supply. This work was supported by a Roche Postdoctoral Fellowship and by the Swiss National Science Foundation (SNSF, Project 31003A_176321). The authors declare no competing financial interests. Correspondence: Dr. Josef Bischofberger, Department of Biomedicine, University of Basel, Pestalozzistr. 20, CH-4046 Basel, Switzerland, Phone: +41-61-2672729, E-mail: [email protected] Cite as: J. -
G Protein-Coupled Receptors
S.P.H. Alexander et al. The Concise Guide to PHARMACOLOGY 2015/16: G protein-coupled receptors. British Journal of Pharmacology (2015) 172, 5744–5869 THE CONCISE GUIDE TO PHARMACOLOGY 2015/16: G protein-coupled receptors Stephen PH Alexander1, Anthony P Davenport2, Eamonn Kelly3, Neil Marrion3, John A Peters4, Helen E Benson5, Elena Faccenda5, Adam J Pawson5, Joanna L Sharman5, Christopher Southan5, Jamie A Davies5 and CGTP Collaborators 1School of Biomedical Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK, 2Clinical Pharmacology Unit, University of Cambridge, Cambridge, CB2 0QQ, UK, 3School of Physiology and Pharmacology, University of Bristol, Bristol, BS8 1TD, UK, 4Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK, 5Centre for Integrative Physiology, University of Edinburgh, Edinburgh, EH8 9XD, UK Abstract The Concise Guide to PHARMACOLOGY 2015/16 provides concise overviews of the key properties of over 1750 human drug targets with their pharmacology, plus links to an open access knowledgebase of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. The full contents can be found at http://onlinelibrary.wiley.com/doi/ 10.1111/bph.13348/full. G protein-coupled receptors are one of the eight major pharmacological targets into which the Guide is divided, with the others being: ligand-gated ion channels, voltage-gated ion channels, other ion channels, nuclear hormone receptors, catalytic receptors, enzymes and transporters. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading. -
Ion Channels
UC Davis UC Davis Previously Published Works Title THE CONCISE GUIDE TO PHARMACOLOGY 2019/20: Ion channels. Permalink https://escholarship.org/uc/item/1442g5hg Journal British journal of pharmacology, 176 Suppl 1(S1) ISSN 0007-1188 Authors Alexander, Stephen PH Mathie, Alistair Peters, John A et al. Publication Date 2019-12-01 DOI 10.1111/bph.14749 License https://creativecommons.org/licenses/by/4.0/ 4.0 Peer reviewed eScholarship.org Powered by the California Digital Library University of California S.P.H. Alexander et al. The Concise Guide to PHARMACOLOGY 2019/20: Ion channels. British Journal of Pharmacology (2019) 176, S142–S228 THE CONCISE GUIDE TO PHARMACOLOGY 2019/20: Ion channels Stephen PH Alexander1 , Alistair Mathie2 ,JohnAPeters3 , Emma L Veale2 , Jörg Striessnig4 , Eamonn Kelly5, Jane F Armstrong6 , Elena Faccenda6 ,SimonDHarding6 ,AdamJPawson6 , Joanna L Sharman6 , Christopher Southan6 , Jamie A Davies6 and CGTP Collaborators 1School of Life Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK 2Medway School of Pharmacy, The Universities of Greenwich and Kent at Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, UK 3Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK 4Pharmacology and Toxicology, Institute of Pharmacy, University of Innsbruck, A-6020 Innsbruck, Austria 5School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK 6Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, EH8 9XD, UK Abstract The Concise Guide to PHARMACOLOGY 2019/20 is the fourth in this series of biennial publications. The Concise Guide provides concise overviews of the key properties of nearly 1800 human drug targets with an emphasis on selective pharmacology (where available), plus links to the open access knowledgebase source of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. -
G Protein‐Coupled Receptors
S.P.H. Alexander et al. The Concise Guide to PHARMACOLOGY 2019/20: G protein-coupled receptors. British Journal of Pharmacology (2019) 176, S21–S141 THE CONCISE GUIDE TO PHARMACOLOGY 2019/20: G protein-coupled receptors Stephen PH Alexander1 , Arthur Christopoulos2 , Anthony P Davenport3 , Eamonn Kelly4, Alistair Mathie5 , John A Peters6 , Emma L Veale5 ,JaneFArmstrong7 , Elena Faccenda7 ,SimonDHarding7 ,AdamJPawson7 , Joanna L Sharman7 , Christopher Southan7 , Jamie A Davies7 and CGTP Collaborators 1School of Life Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK 2Monash Institute of Pharmaceutical Sciences and Department of Pharmacology, Monash University, Parkville, Victoria 3052, Australia 3Clinical Pharmacology Unit, University of Cambridge, Cambridge, CB2 0QQ, UK 4School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK 5Medway School of Pharmacy, The Universities of Greenwich and Kent at Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, UK 6Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK 7Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK Abstract The Concise Guide to PHARMACOLOGY 2019/20 is the fourth in this series of biennial publications. The Concise Guide provides concise overviews of the key properties of nearly 1800 human drug targets with an emphasis on selective pharmacology (where available), plus links to the open access knowledgebase source of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. Although the Concise Guide represents approximately 400 pages, the material presented is substantially reduced compared to information and links presented on the website.