(12) Patent Application Publication (10) Pub. No.: US 2003/0069170 A1 Soltero Et Al
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Effects of Endothelin-1 on the Membrane Potential and Slow Waves in Circular Smooth Muscle of Rat Gastric Antrum
J. Smooth Muscle Res. (2004) 40 (4 & 5): 199–210 199 Original Effects of endothelin-1 on the membrane potential and slow waves in circular smooth muscle of rat gastric antrum Kenro IMAEDA1, Takashi KATO1, Naotsuka OKAYAMA1, Seiji IMAI1, Makoto SASAKI1, Hiromi KATAOKA1, Takahiro NAKAZAWA1, Hirotaka OHARA1, Yoshihiko KITO2 and Makoto ITOH1 1Department of Internal Medicine and Bioregulation, 2Department of Physiology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan Abstract Electrophysiological effects of endothelin-1 (ET-1) on circular smooth muscle of rat gastric antrum were investigated by using intracellular membrane potential recording techniques. ET-1 (10 nM) caused an initial hyperpolarization of the membrane which was followed by a sustained depolarization. ET-1 also increased the frequency but not the amplitude of slow waves. In the presence of the endothelin type A (ETA) receptor antagonist, BQ123 (1 µM), ET-1 (10 nM) depolarized the membrane and increased the frequency of slow waves, but without the initial hyperpolarization. The selective endothelin type B (ETB) receptor agonist, sarafotoxin S6c (10 nM), also depolarized the membrane and increased the frequency of slow waves. In the presence of the ETB receptor antagonist, BQ788 (1 µM), ET-1 (10 nM) hyperpolarized the membrane. However, in the presence of BQ788, ET-1 caused neither the depolarization nor the increase in the frequency of the slow waves. The ET-1-induced hyperpolarization was completely abolished by apamin (0.1 µM). In the presence of apamin, ET-1 depolarized the membrane and increased the frequency of slow waves. The ET-1-induced depolarization was significantly attenuated by 4,4’-diisothiocyanatostilbene-2,2’-disulphonic acid (DIDS, 0.3 mM). -
Proquest Dissertations
Opioid peptide permeation across the blood- brain and blood-cerebrospinal fluid barriers Item Type text; Dissertation-Reproduction (electronic) Authors Abbruscato, Thomas John, 1970- Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 04/10/2021 05:24:05 Link to Item http://hdl.handle.net/10150/282429 INFORMATION TO USERS This manuscript has been reproduced from the microfihn master. UMI fihns the text direct^ from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter &ce, while others may be from any type of computer printer. The quality of this reproductioii is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, b^inning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book. Photographs included in the original manuscript have been reproduced xerographically in this copy. -
Characterisation and Partial Purification of a Novel Prohormone Processing Enzyme from Ovine Adrenal Medulla
Volume 246, number 1,2, 44-48 FEB 06940 March 1989 Characterisation and partial purification of a novel prohormone processing enzyme from ovine adrenal medulla N. Tezapsidis and D.C. Parish Biochemistry Group, School of Biological Sciences, University of Sussex, Falmer, Brighton, Sussex, England Received 3 January 1989 An enzymatic activity has been identified which is capable of generating a product chromatographically identical with adrenorphin from the model substrate BAM 12P. This enzyme was purified by gel filtration and ion-exchange chromatog- raphy and characterised as having a molecular mass between 30 and 45 kDa and an acidic pL The enzyme is active at the acid pH expected in the secretory vesicle interior and is inhibited by EDTA, suggesting that it is a metalloprotease. This activity could not be mimicked by incubation with lysosomal fractions and it meets the criteria to be considered as a possible prohormone processing enzyme. Prohormone processing; Adrenorphin; Secretory vesiclepurification 1. INTRODUCTION The purification of an endopeptidase responsi- ble for the generation of adrenorphin was under- Active peptide hormones are released from their taken, using the ovine adrenal medulla as a source. precursors by endoproteolytic cleavage at highly Adrenorphin is known to be located in the adrenal specific sites. The commonest of these is cleavage medulla of all species so far investigated [6]. at pairs of basic residues such as lysine and Secretory vesicles (also known as chromaffin arginine [1,2]. However another common class of granules) were isolated as a preliminary purifica- processing sites are known to be at single arginine tion step, since it is known that prohormone pro- residues, adjacent to a proline [3]. -
Genscript Product Catalog 2013-2014 Genscript Product Catalog
GenScript Product Catalog 2013-2014 GenScript Product Catalog www.genscript.com GenScript USA Inc. 860 Centennial Ave. Piscataway, NJ 08854USA Tel: 1-732-885-9188 / 1-732-885-9688 Toll-Free Tel: 1-877-436-7274 Fax: 1-732-210-0262 / 1-732-885-5878 Email: [email protected] Nucleic Acid Purification and Analysis Business Development Tel: 1-732-317-5088 PCR PCR and Cloning Email: [email protected] Protein Analysis Antibodies 2013-2014 Peptides Welcome to GenScript GenScript USA Incorporation, founded in 2002, is a fast-growing biotechnology company and contract research organization (CRO) specialized in custom services and consumable products for academic and pharmaceutical research. Built on our assembly-line mode, one-stop solutions, continuous improvement, and stringent IP protection, GenScript provides a comprehensive portfolio of products and services at the most competitive prices in the industry to meet your research needs every day. Over the years, GenScript’s scientists have developed many innovative technologies that allow us to maintain our position at the cutting edge of biological and medical research while offering cost-effective solutions for customers to accelerate their research. Our advanced expertise includes proprietary technology for custom gene synthesis, OptimumGeneTM codon optimization technology, CloneEZ® seamless cloning technology, FlexPeptideTM technology for custom peptide synthesis, BacPowerTM technology for protein expression and purification, T-MaxTM adjuvant and advanced nanotechnology for custom antibody production, as well as our ONE-HOUR WesternTM detection system and eStain® protein staining system. GenScript offers a broad range of reagents, optimized kits, and system solutions to help you unravel the mysteries of biology. We also provide a comprehensive portfolio of customized services that include Bio-Reagent, Bio-Assay, Lead Optimization, and Antibody Drug Development which can be effectively integrated into your value chain and your operations. -
Entropy-Driven Binding of Opioid Peptides Induces a Large Domain Motion in Human Dipeptidyl Peptidase III
Entropy-driven binding of opioid peptides induces a large domain motion in human dipeptidyl peptidase III Gustavo A. Bezerraa, Elena Dobrovetskyb, Roland Viertlmayra, Aiping Dongb, Alexandra Binterc, Marija Abramic´d, Peter Macherouxc, Sirano Dhe-Paganonb,e, and Karl Grubera,1 aInstitute of Molecular Biosciences, University of Graz, A-8010 Graz, Austria; eDepartment of Physiology and bStructural Genomics Consortium, University of Toronto, Toronto, ON, Canada M5G 1L7; cInstitute of Biochemistry, Graz University of Technology, A-8010 Graz, Austria; and dDivision of Organic Chemistry and Biochemistry, Ruđer Boskovic Institute, 10002 Zagreb, Croatia Edited by William W. Bachovchin, Tufts University School of Medicine, Boston, MA, and accepted by the Editorial Board March 9, 2012 (received for review November 2, 2011) Opioid peptides are involved in various essential physiological of action compared with morphine, spinorphin is an analgesic, processes, most notably nociception. Dipeptidyl peptidase III (DPP potentially useful for pain treatment in morphine-resistant cases III) is one of the most important enkephalin-degrading enzymes (14). This opioid peptide was also shown to be a potent and se- associated with the mammalian pain modulatory system. Here we lective antagonist of the receptor P2X3, which is involved in pain describe the X-ray structures of human DPP III and its complex with signaling in chronic inflammatory nociception and neuropathic the opioid peptide tynorphin, which rationalize the enzyme’s sub- pain due to nerve injury (15). strate specificity and reveal an exceptionally large domain motion Tynorphin (Val-Val-Tyr-Pro-Trp), a synthetic, truncated form upon ligand binding. Microcalorimetric analyses point at an en- of spinorphin, is a highly specific inhibitor of DPP III and was tropy-dominated process, with the release of water molecules shown to induce an even more potent antinociceptive effect from the binding cleft (“entropy reservoir”) as the major thermo- (14, 16). -
Pharmaceutical Nasal Compositions and Methods for Peptid Treatment
(19) TZZ ¥Z_T (11) EP 2 283 850 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: A61K 31/485 (2006.01) A61K 9/107 (2006.01) 25.04.2018 Bulletin 2018/17 A61K 9/08 (2006.01) A61K 38/02 (2006.01) A61K 38/25 (2006.01) A61K 31/12 (2006.01) (2006.01) (2006.01) (21) Application number: 10186116.9 A61K 31/365 A61K 9/00 A61K 47/32 (2006.01) A61K 47/22 (2006.01) A61K 47/06 (2006.01) A61K 47/08 (2006.01) (22) Date of filing: 07.03.2005 A61K 47/10 (2017.01) A61K 47/18 (2017.01) A61K 47/44 (2017.01) (54) Pharmaceutical nasal compositions and methods for peptid treatment Pharmazeutische nasale Zubereitungen und Peptidbehandlungen Compositions pharmaceutiques nasales et traitements aux peptides (84) Designated Contracting States: • Reppucci, Carl AT BE BG CH CY CZ DE DK EE ES FI FR GB GR North Andover, MA 01845 (US) HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (74) Representative: Chajmowicz, Marion et al (30) Priority: 05.03.2004 US 895465 Becker & Associés 25, rue Louis Le Grand (43) Date of publication of application: 75002 Paris (FR) 16.02.2011 Bulletin 2011/07 (56) References cited: (62) Document number(s) of the earlier application(s) in WO-A-03/000158 accordance with Art. 76 EPC: 05724894.0 / 1 773 369 Remarks: Thefile contains technical information submitted after (73) Proprietor: CPEX Pharmaceuticals, Inc. the application was filed and not included in this Exeter, NH 03833 (US) specification (72) Inventors: • Gyurik, Robert Exeter, NH 03833 (US) Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. -
PRODUCT INFORMATION Spinorphin Item No
PRODUCT INFORMATION Spinorphin Item No. 29914 NH CAS Registry No.: 137201-62-8 Formal Name: L-leucyl-L-valyl-L-valyl-L-tyrosyl-L- O H O N prolyl-L-tryptophyl-L-threonine N OH O N H Synonyms: Leu-Val-Val-Tyr-Pro-Trp-Thr, O OH H LVVYPWT O O N MF: C45H64N8O10 N N O FW: 877.0 H H NH2 Purity: ≥95% UV/Vis.: λmax: 222 nm Supplied as: A crystalline solid Storage: -20°C OH Stability: ≥2 years Information represents the product specifications. Batch specific analytical results are provided on each certificate of analysis. Laboratory Procedures Spinorphin is supplied as a crystalline solid. A stock solution may be made by dissolving the spinorphin in the solvent of choice, which should be purged with an inert gas. Spinorphin is soluble in organic solvents such as DMSO and dimethyl formamide. The solubility of spinorphin in these solvents is approximately 30 mg/ml. Description Spinorphin is a heptapeptide inhibitor of the enkephalin-degrading enzymes aminopeptidase, dipeptidyl aminopeptidase, angiotensin-converting enzyme (ACE), and enkephalinase (IC50s = 3.3, 1.4, 2.4, and 10 µg/ml, respectively, for monkey brain enzymes).1 It is selective for these enzymes over human serum aminopeptidase A (IC50 = >100 µg/ml), as well as porcine kidney aminopeptidase B, aminopeptidase M, dipeptidyl peptidase 1 (DPP-1), DPP-2, DPP-3, and DPP-4 (IC50s = >55 µg/ml for all). Spinorphin inhibits chemotaxis, production of reactive oxygen species (ROS), and exocytosis of glucuronidase and collagenase in polymorphonuclear neutrophils (PMNs). It potentiates enkephalin-induced action potentials in rat hippocampal slices. -
Gent Forms of Metalloproteinases in Hydra
Cell Research (2002); 12(3-4):163-176 http://www.cell-research.com REVIEW Structure, expression, and developmental function of early diver- gent forms of metalloproteinases in Hydra 1 2 3 4 MICHAEL P SARRAS JR , LI YAN , ALEXEY LEONTOVICH , JIN SONG ZHANG 1 Department of Anatomy and Cell Biology University of Kansas Medical Center Kansas City, Kansas 66160- 7400, USA 2 Centocor, Malvern, PA 19355, USA 3 Department of Experimental Pathology, Mayo Clinic, Rochester, MN 55904, USA 4 Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047, USA ABSTRACT Metalloproteinases have a critical role in a broad spectrum of cellular processes ranging from the breakdown of extracellular matrix to the processing of signal transduction-related proteins. These hydro- lytic functions underlie a variety of mechanisms related to developmental processes as well as disease states. Structural analysis of metalloproteinases from both invertebrate and vertebrate species indicates that these enzymes are highly conserved and arose early during metazoan evolution. In this regard, studies from various laboratories have reported that a number of classes of metalloproteinases are found in hydra, a member of Cnidaria, the second oldest of existing animal phyla. These studies demonstrate that the hydra genome contains at least three classes of metalloproteinases to include members of the 1) astacin class, 2) matrix metalloproteinase class, and 3) neprilysin class. Functional studies indicate that these metalloproteinases play diverse and important roles in hydra morphogenesis and cell differentiation as well as specialized functions in adult polyps. This article will review the structure, expression, and function of these metalloproteinases in hydra. Key words: Hydra, metalloproteinases, development, astacin, matrix metalloproteinases, endothelin. -
Sized Neuropeptides
M ETHODS IN MOLECULAR BIOLOGY™ Series Editor John M. Walker School of Life Sciences University of Hertfordshire Hatfield, Hertfordshire, AL10 9AB, UK For further volumes: http://www.springer.com/series/7651 Neuropeptides Methods and Protocols Edited by Adalberto Merighi Dipartimento di Morfofisiologia Veterinaria, Università degli Studi di Torino, Grugliasco, TO, Italy; Istituto Nazionale di Neuroscienze (INN), Università degli Studi di Torino, Grugliasco, TO, Italy Editor Adalberto Merighi Dipartimento di Morfofisiologia Veterinaria Università degli Studi di Torino and Istituto Nazionale di Neuroscienze (INN) Università degli Studi di Torino Grugliasco, TO, Italy [email protected] Please note that additional material for this book can be downloaded from http://extras.springer.com ISSN 1064-3745 e-ISSN 1940-6029 ISBN 978-1-61779-309-7 e-ISBN 978-1-61779-310-3 DOI 10.1007/978-1-61779-310-3 Springer New York Dordrecht Heidelberg London Library of Congress Control Number: 2011936011 © Springer Science+Business Media, LLC 2011 All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Humana Press, c/o Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. -
Formylpeptide Receptor N Antagonist at The
The Endogenous Opioid Spinorphin Blocks fMet-Leu-Phe-Induced Neutrophil Chemotaxis by Acting as a Specific Antagonist at the N-Formylpeptide Receptor This information is current as Subtype FPR of October 1, 2021. Thomas S. Liang, Ji-Liang Gao, Omid Fatemi, Mark Lavigne, Thomas L. Leto and Philip M. Murphy J Immunol 2001; 167:6609-6614; ; doi: 10.4049/jimmunol.167.11.6609 Downloaded from http://www.jimmunol.org/content/167/11/6609 References This article cites 48 articles, 13 of which you can access for free at: http://www.jimmunol.org/content/167/11/6609.full#ref-list-1 http://www.jimmunol.org/ Why The JI? Submit online. • Rapid Reviews! 30 days* from submission to initial decision • No Triage! Every submission reviewed by practicing scientists by guest on October 1, 2021 • Fast Publication! 4 weeks from acceptance to publication *average Subscription Information about subscribing to The Journal of Immunology is online at: http://jimmunol.org/subscription Permissions Submit copyright permission requests at: http://www.aai.org/About/Publications/JI/copyright.html Email Alerts Receive free email-alerts when new articles cite this article. Sign up at: http://jimmunol.org/alerts The Journal of Immunology is published twice each month by The American Association of Immunologists, Inc., 1451 Rockville Pike, Suite 650, Rockville, MD 20852 Copyright © 2001 by The American Association of Immunologists All rights reserved. Print ISSN: 0022-1767 Online ISSN: 1550-6606. The Endogenous Opioid Spinorphin Blocks fMet-Leu-Phe-Induced Neutrophil Chemotaxis by Acting as a Specific Antagonist at the N-Formylpeptide Receptor Subtype FPR Thomas S. -
Ligand and Voltage Gated Ion Channels
Print ISSN: 2319-2003 | Online ISSN: 2279-0780 IJBCP International Journal of Basic & Clinical Pharmacology DOI: http://dx.doi.org/10.18203/2319-2003.ijbcp20170314 Review Article Drug targets: ligand and voltage gated ion channels Nilan T. Jacob* Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), ABSTRACT Puducherry, India The elucidation of a drug target is one of the earliest and most important steps in the drug discovery process. Ion channels encompassing both the ligand gated Received: 03 December 2016 and voltage gated types are the second most common drug targets after G- Revised: 07 December 2016 Protein Coupled Receptors (GPCR). Ion channels are basically pore forming Accepted: 27 December 2016 membrane proteins specialized for conductance of ions as per the concentration gradient. They are further broadly classified based on the energy (ATP) *Correspondence to: dependence into active ion channels/pumps and passive ion channels. Gating is Dr. Nilan T. Jacob, the regulatory mechanism of these ion channels by which binding of a specific Email: molecule or alteration in membrane potential induces conformational change in [email protected] the channel architecture to result in ion flow or its inhibition. Thus, the study of ligand and voltage gated ion channels becomes an important tool for drug Copyright: © the author(s), discovery especially during the initial stage of target identification. This review publisher and licensee Medip aims to describe the ligand and voltage gated ion channels along with discussion Academy. This is an open- on its subfamilies, channel architecture and key pharmacological modulators. access article distributed under the terms of the Creative Keywords: Drug targets, Ion channels, Ligand gated ion channels, Receptor Commons Attribution Non- Commercial License, which pharmacology, Voltage gated ion channels permits unrestricted non- commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. -
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.