(12) Patent Application Publication (10) Pub. No.: US 2014/0128399 A1 Abraham Et Al
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The Single Cyclic Nucleotide-Specific Phosphodiesterase of the Intestinal Parasite Giardia Lamblia Represents a Potential Drug Target
RESEARCH ARTICLE The single cyclic nucleotide-specific phosphodiesterase of the intestinal parasite Giardia lamblia represents a potential drug target Stefan Kunz1,2*, Vreni Balmer1, Geert Jan Sterk2, Michael P. Pollastri3, Rob Leurs2, Norbert MuÈ ller1, Andrew Hemphill1, Cornelia Spycher1¤ a1111111111 1 Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland, 2 Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute of Molecules, Medicines and Systems (AIMMS), Vrije a1111111111 Universiteit Amsterdam, Amsterdam, The Netherlands, 3 Department of Chemistry and Chemical Biology, a1111111111 Northeastern University, Boston, Massachusetts, United States of America a1111111111 a1111111111 ¤ Current address: Euresearch, Head Office Bern, Bern, Switzerland * [email protected] Abstract OPEN ACCESS Citation: Kunz S, Balmer V, Sterk GJ, Pollastri MP, Leurs R, MuÈller N, et al. (2017) The single cyclic Background nucleotide-specific phosphodiesterase of the Giardiasis is an intestinal infection correlated with poverty and poor drinking water quality, intestinal parasite Giardia lamblia represents a potential drug target. PLoS Negl Trop Dis 11(9): and treatment options are limited. According to the Center for Disease Control and Preven- e0005891. https://doi.org/10.1371/journal. tion, Giardia infections afflict nearly 33% of people in developing countries, and 2% of the pntd.0005891 adult population in the developed world. This study describes the single cyclic nucleotide- Editor: Aaron R. Jex, University of Melbourne, specific phosphodiesterase (PDE) of G. lamblia and assesses PDE inhibitors as a new gen- AUSTRALIA eration of anti-giardial drugs. Received: December 5, 2016 Accepted: August 21, 2017 Methods Published: September 15, 2017 An extensive search of the Giardia genome database identified a single gene coding for a class I PDE, GlPDE. -
Signal Transduction Guide
Signal Transduction Product Guide | 2007 NEW! Selective T-type Ca2+ channel blockers, NNC 55-0396 and Mibefradil ZM 447439 – Novel Aurora Kinase Inhibitor NEW! Antibodies for Cancer Research EGFR-Kinase Selective Inhibitors – BIBX 1382 and BIBU 1361 DRIVING RESEARCH FURTHER Calcium Signaling Agents ...................................2 G Protein Reagents ...........................................12 Cell Cycle and Apoptosis Reagents .....................3 Ion Channel Modulators ...................................13 Cyclic Nucleotide Related Tools ...........................7 Lipid Signaling Agents ......................................17 Cytokine Signaling Agents ..................................9 Nitric Oxide Tools .............................................19 Enzyme Inhibitors/Substrates/Activators ..............9 Protein Kinase Reagents....................................22 Glycobiology Agents .........................................12 Protein Phosphatase Reagents ..........................33 Neurochemicals | Signal Transduction Agents | Peptides | Biochemicals Signal Transduction Product Guide Calcium Signaling Agents ......................................................................................................................2 Calcium Binding Protein Modulators ...................................................................................................2 Calcium ATPase Modulators .................................................................................................................2 Calcium Sensitive Protease -
Analyses of PDE-Regulated Phosphoproteomes Reveal Unique and Specific Camp-Signaling Modules in T Cells
Analyses of PDE-regulated phosphoproteomes reveal unique and specific cAMP-signaling modules in T cells Michael-Claude G. Beltejara, Ho-Tak Laua, Martin G. Golkowskia, Shao-En Onga, and Joseph A. Beavoa,1 aDepartment of Pharmacology, University of Washington, Seattle, WA 98195 Contributed by Joseph A. Beavo, May 28, 2017 (sent for review March 10, 2017; reviewed by Paul M. Epstein, Donald H. Maurice, and Kjetil Tasken) Specific functions for different cyclic nucleotide phosphodiester- to bias T-helper polarization toward Th2, Treg, or Th17 pheno- ases (PDEs) have not yet been identified in most cell types. types (13, 14). In a few cases increased cAMP may even potentiate Conventional approaches to study PDE function typically rely on the T-cell activation signal (15), particularly at early stages of measurements of global cAMP, general increases in cAMP- activation. Recent MS-based proteomic studies have been useful dependent protein kinase (PKA), or the activity of exchange in characterizing changes in the phosphoproteome of T cells under protein activated by cAMP (EPAC). Although newer approaches various stimuli such as T-cell receptor stimulation (16), prosta- using subcellularly targeted FRET reporter sensors have helped glandin signaling (17), and oxidative stress (18), so much of the define more compartmentalized regulation of cAMP, PKA, and total Jurkat phosphoproteome is known. Until now, however, no EPAC, they have limited ability to link this regulation to down- information on the regulation of phosphopeptides by PDEs has stream effector molecules and biological functions. To address this been available in these cells. problem, we have begun to use an unbiased mass spectrometry- Inhibitors of cAMP PDEs are useful tools to study PKA/EPAC- based approach coupled with treatment using PDE isozyme- mediated signaling, and selective inhibitors for each of the 11 PDE – selective inhibitors to characterize the phosphoproteomes of the families have been developed (19 21). -
Phosphodiesterase (PDE)
Phosphodiesterase (PDE) Phosphodiesterase (PDE) is any enzyme that breaks a phosphodiester bond. Usually, people speaking of phosphodiesterase are referring to cyclic nucleotide phosphodiesterases, which have great clinical significance and are described below. However, there are many other families of phosphodiesterases, including phospholipases C and D, autotaxin, sphingomyelin phosphodiesterase, DNases, RNases, and restriction endonucleases, as well as numerous less-well-characterized small-molecule phosphodiesterases. The cyclic nucleotide phosphodiesterases comprise a group of enzymes that degrade the phosphodiester bond in the second messenger molecules cAMP and cGMP. They regulate the localization, duration, and amplitude of cyclic nucleotide signaling within subcellular domains. PDEs are therefore important regulators ofsignal transduction mediated by these second messenger molecules. www.MedChemExpress.com 1 Phosphodiesterase (PDE) Inhibitors, Activators & Modulators (+)-Medioresinol Di-O-β-D-glucopyranoside (R)-(-)-Rolipram Cat. No.: HY-N8209 ((R)-Rolipram; (-)-Rolipram) Cat. No.: HY-16900A (+)-Medioresinol Di-O-β-D-glucopyranoside is a (R)-(-)-Rolipram is the R-enantiomer of Rolipram. lignan glucoside with strong inhibitory activity Rolipram is a selective inhibitor of of 3', 5'-cyclic monophosphate (cyclic AMP) phosphodiesterases PDE4 with IC50 of 3 nM, 130 nM phosphodiesterase. and 240 nM for PDE4A, PDE4B, and PDE4D, respectively. Purity: >98% Purity: 99.91% Clinical Data: No Development Reported Clinical Data: No Development Reported Size: 1 mg, 5 mg Size: 10 mM × 1 mL, 10 mg, 50 mg (R)-DNMDP (S)-(+)-Rolipram Cat. No.: HY-122751 ((+)-Rolipram; (S)-Rolipram) Cat. No.: HY-B0392 (R)-DNMDP is a potent and selective cancer cell (S)-(+)-Rolipram ((+)-Rolipram) is a cyclic cytotoxic agent. (R)-DNMDP, the R-form of DNMDP, AMP(cAMP)-specific phosphodiesterase (PDE) binds PDE3A directly. -
Inhibitors of Cyclic Nucleotide Phosphodiesterase Isozymes Type-III and Type-IV Suppress Mitogenesis of Rat Mesangial Cells
Inhibitors of cyclic nucleotide phosphodiesterase isozymes type-III and type-IV suppress mitogenesis of rat mesangial cells. K Matousovic, … , E N Chini, T P Dousa J Clin Invest. 1995;96(1):401-410. https://doi.org/10.1172/JCI118049. Research Article We studied interactions between the mitogen-activated protein kinase (MAPK) signalling pathway and cAMP-protein kinase (PKA) signaling pathway in regulation of mitogenesis of mesangial cells (MC) determined by [3H]thymidine incorporation, with or without added EGF. Forskolin or dibutyryl cAMP strongly (by 60-70%) inhibited [3H]thymidine incorporation into MC. Cilostamide, lixazinone or cilostazol selective inhibitors of cAMP-phosphodiesterase (PDE) isozyme PDE-III, inhibited mitogenesis to similar extent as forskolin and DBcAMP and activated in situ PKA, but without detectable increase in cAMP levels. Cilostamide and cilostazol were more than three times more effective at inhibiting mesangial mitogenesis than rolipram and denbufylline, inhibitors of isozyme PDE-IV, even though PDE-IV was two times more abundant in MC than was PDE-III. On the other hand, when incubated with forskolin, rolipram-enhanced cAMP accumulation was far greater (10-100x) than with cilostamide. EGF increased MAPK activity (+300%); PDE isozyme inhibitors which suppressed mitogenesis also inhibited MAPK. PDE isozyme inhibitors also suppressed PDGF-stimulated MC proliferation. We conclude that cAMP inhibits the mitogen-dependent MAPK-signaling pathway probably by decreasing the activity of Raf-1 due to PKA-catalyzed phosphorylation. Further, we surmise that minor increase in the cAMP pool metabolized by PDE-III is intimately related to regulation of mesangial proliferation. Thus, PDE isozyme inhibitors have the potential to suppress MC proliferation by a focused effect upon signaling pathways. -
Pharmaceutical Appendix to the Harmonized Tariff Schedule
Harmonized Tariff Schedule of the United States (2019) Revision 13 Annotated for Statistical Reporting Purposes PHARMACEUTICAL APPENDIX TO THE HARMONIZED TARIFF SCHEDULE Harmonized Tariff Schedule of the United States (2019) Revision 13 Annotated for Statistical Reporting Purposes PHARMACEUTICAL APPENDIX TO THE TARIFF SCHEDULE 2 Table 1. This table enumerates products described by International Non-proprietary Names INN which shall be entered free of duty under general note 13 to the tariff schedule. The Chemical Abstracts Service CAS registry numbers also set forth in this table are included to assist in the identification of the products concerned. For purposes of the tariff schedule, any references to a product enumerated in this table includes such product by whatever name known. -
Can PDE Inhibition Improve Cognition? : Translational Insights
Can PDE inhibition improve cognition? : Translational insights Citation for published version (APA): Reneerkens, O. A. H. (2013). Can PDE inhibition improve cognition? : Translational insights. Maastricht University. https://doi.org/10.26481/dis.20130418or Document status and date: Published: 01/01/2013 DOI: 10.26481/dis.20130418or Document Version: Publisher's PDF, also known as Version of record Please check the document version of this publication: • A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the “Taverne” license above, please follow below link for the End User Agreement: www.umlib.nl/taverne-license Take down policy If you believe that this document breaches copyright please contact us at: [email protected] providing details and we will investigate your claim. -
Phosphodiesterase Inhibitors: Their Role and Implications
International Journal of PharmTech Research CODEN (USA): IJPRIF ISSN : 0974-4304 Vol.1, No.4, pp 1148-1160, Oct-Dec 2009 PHOSPHODIESTERASE INHIBITORS: THEIR ROLE AND IMPLICATIONS Rumi Ghosh*1, Onkar Sawant 1, Priya Ganpathy1, Shweta Pitre1 and V.J.Kadam1 1Dept. of Pharmacology ,Bharati Vidyapeeth’s College of Pharmacy, University of Mumbai, Sector 8, CBD Belapur, Navi Mumbai -400614, India. *Corres.author: rumi 1968@ hotmail.com ABSTRACT: Phosphodiesterase (PDE) isoenzymes catalyze the inactivation of intracellular mediators of signal transduction such as cAMP and cGMP and thus have pivotal roles in cellular functions. PDE inhibitors such as theophylline have been employed as anti-asthmatics since decades and numerous novel selective PDE inhibitors are currently being investigated for the treatment of diseases such as Alzheimer’s disease, erectile dysfunction and many others. This review attempts to elucidate the pharmacology, applications and recent developments in research on PDE inhibitors as pharmacological agents. Keywords: Phosphodiesterases, Phosphodiesterase inhibitors. INTRODUCTION Alzheimer’s disease, COPD and other aliments. By cAMP and cGMP are intracellular second messengers inhibiting specifically the up-regulated PDE isozyme(s) involved in the transduction of various physiologic with newly synthesized potent and isoezyme selective stimuli and regulation of multiple physiological PDE inhibitors, it may possible to restore normal processes, including vascular resistance, cardiac output, intracellular signaling selectively, providing therapy with visceral motility, immune response (1), inflammation (2), reduced adverse effects (9). neuroplasticity, vision (3), and reproduction (4). Intracellular levels of these cyclic nucleotide second AN OVERVIEW OF THE PHOSPHODIESTERASE messengers are regulated predominantly by the complex SUPER FAMILY superfamily of cyclic nucleotide phosphodiesterase The PDE super family is large, complex and represents (PDE) enzymes. -
Phosphodiesterase Inhibitors: Could They Be Beneficial for the Treatment of COVID-19?
International Journal of Molecular Sciences Review Phosphodiesterase Inhibitors: Could They Be Beneficial for the Treatment of COVID-19? Mauro Giorgi 1,*, Silvia Cardarelli 2, Federica Ragusa 3, Michele Saliola 1, Stefano Biagioni 1, Giancarlo Poiana 1 , Fabio Naro 2 and Mara Massimi 3,* 1 Department of Biology and Biotechnology “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy; [email protected] (M.S.); [email protected] (S.B.); [email protected] (G.P.) 2 Department of Anatomical, Histological, Forensic Medicine and Orthopedic Sciences, Sapienza University, 00185 Rome, Italy; [email protected] (S.C.); [email protected] (F.N.) 3 Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; [email protected] * Correspondence: [email protected] (M.G.); [email protected] (M.M.) Received: 10 July 2020; Accepted: 24 July 2020; Published: 27 July 2020 Abstract: In March 2020, the World Health Organization declared the severe acute respiratory syndrome corona virus 2 (SARS-CoV2) infection to be a pandemic disease. SARS-CoV2 was first identified in China and, despite the restrictive measures adopted, the epidemic has spread globally, becoming a pandemic in a very short time. Though there is growing knowledge of the SARS-CoV2 infection and its clinical manifestations, an effective cure to limit its acute symptoms and its severe complications has not yet been found. Given the worldwide health and economic emergency issues accompanying this pandemic, there is an absolute urgency to identify effective treatments and reduce the post infection outcomes. In this context, phosphodiesterases (PDEs), evolutionarily conserved cyclic nucleotide (cAMP/cGMP) hydrolyzing enzymes, could emerge as new potential targets. -
Various Subtypes of Phosphodiesterase Inhibitors Differentially Regulate Pulmonary Vein and Sinoatrial Node Electrical Activities
EXPERIMENTAL AND THERAPEUTIC MEDICINE 19: 2773-2782, 2020 Various subtypes of phosphodiesterase inhibitors differentially regulate pulmonary vein and sinoatrial node electrical activities YUNG‑KUO LIN1,2*, CHEN‑CHUAN CHENG3*, JEN‑HUNG HUANG1,2, YI-ANN CHEN4, YEN-YU LU5, YAO‑CHANG CHEN6, SHIH‑ANN CHEN7 and YI-JEN CHEN1,8 1Department of Internal Medicine, Division of Cardiovascular Medicine, Wan Fang Hospital; 2Department of Internal Medicine, Division of Cardiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11696; 3Division of Cardiology, Chi‑Mei Medical Center, Tainan 71004; 4Division of Nephrology; 5Division of Cardiology, Department of Internal Medicine, Sijhih Cathay General Hospital, New Taipei 22174; 6Department of Biomedical Engineering, National Defense Medical Center, Taipei 11490; 7Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217; 8Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11696, Taiwan, R.O.C. Received May 16, 2019; Accepted January 9, 2020 DOI: 10.3892/etm.2020.8495 Abstract. Phosphodiesterase (PDE)3-5 are expressed in 20.7±4.6%, respectively. In addition, milrinone (1 and 10 µM) cardiac tissue and play critical roles in the pathogenesis of induced the occurrence of triggered activity (0/8 vs. 5/8; heart failure and atrial fibrillation. PDE inhibitors are widely P<0.005) in PVs. Rolipram increased PV spontaneous activity used in the clinic, but their effects on the electrical activity by 7.5±1.3‑9.5±4.0%, although this was not significant, and did of the heart are not well understood. The aim of the present not alter SAN spontaneous activity. -
Metabolic Enzyme/Protease
Inhibitors, Agonists, Screening Libraries www.MedChemExpress.com Metabolic Enzyme/Protease Metabolic pathways are enzyme-mediated biochemical reactions that lead to biosynthesis (anabolism) or breakdown (catabolism) of natural product small molecules within a cell or tissue. In each pathway, enzymes catalyze the conversion of substrates into structurally similar products. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation. Metabolism maintains the living state of the cells and the organism. Proteases are used throughout an organism for various metabolic processes. Proteases control a great variety of physiological processes that are critical for life, including the immune response, cell cycle, cell death, wound healing, food digestion, and protein and organelle recycling. On the basis of the type of the key amino acid in the active site of the protease and the mechanism of peptide bond cleavage, proteases can be classified into six groups: cysteine, serine, threonine, glutamic acid, aspartate proteases, as well as matrix metalloproteases. Proteases can not only activate proteins such as cytokines, or inactivate them such as numerous repair proteins during apoptosis, but also expose cryptic sites, such as occurs with β-secretase during amyloid precursor protein processing, shed various transmembrane proteins such as occurs with metalloproteases and cysteine proteases, or convert receptor agonists into antagonists and vice versa such as chemokine conversions carried out by metalloproteases, dipeptidyl peptidase IV and some cathepsins. In addition to the catalytic domains, a great number of proteases contain numerous additional domains or modules that substantially increase the complexity of their functions. -
Phosphodiesterases, 3',5'-Cyclic Nucleotide (Pdes) (Version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database
IUPHAR/BPS Guide to Pharmacology CITE https://doi.org/10.2218/gtopdb/F260/2019.4 Phosphodiesterases, 3',5'-cyclic nucleotide (PDEs) (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database Chen Yan1 1. University of Rochester, USA Abstract 3',5'-Cyclic nucleotide phosphodiesterases (PDEs, 3',5'-cyclic-nucleotide 5'-nucleotidohydrolase), E.C. 3.1.4.17, catalyse the hydrolysis of a 3',5'-cyclic nucleotide (usually cyclic AMP or cyclic GMP). isobutylmethylxanthine is a nonselective inhibitor with an IC50 value in the millimolar range for all isoforms except PDE 8A, 8B and 9A. A 2',3'-cyclic nucleotide 3'-phosphodiesterase (E.C. 3.1.4.37 CNPase) activity is associated with myelin formation in the development of the CNS. Contents This is a citation summary for Phosphodiesterases, 3',5'-cyclic nucleotide (PDEs) in the Guide to Pharmacology database (GtoPdb). It exists purely as an adjunct to the database to facilitate the recognition of citations to and from the database by citation analyzers. Readers will almost certainly want to visit the relevant sections of the database which are given here under database links. GtoPdb is an expert-driven guide to pharmacological targets and the substances that act on them. GtoPdb is a reference work which is most usefully represented as an on-line database. As in any publication this work should be appropriately cited, and the papers it cites should also be recognized. This document provides a citation for the relevant parts of the database, and also provides a reference list for the research cited by those parts. Please note that the database version for the citations given in GtoPdb are to the most recent preceding version in which the family or its subfamilies and targets were substantially changed.