Poster Session I As Demonstrated by Reduced Levels of KOR Mrna and KOR Binding, to Follow up Initial Findings That Systemic Blockade of M2
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INVESTIGATION of NATURAL PRODUCT SCAFFOLDS for the DEVELOPMENT of OPIOID RECEPTOR LIGANDS by Katherine M
INVESTIGATION OF NATURAL PRODUCT SCAFFOLDS FOR THE DEVELOPMENT OF OPIOID RECEPTOR LIGANDS By Katherine M. Prevatt-Smith Submitted to the graduate degree program in Medicinal Chemistry and the Graduate Faculty of the University of Kansas in partial fulfillment of the requirements for the degree of Doctor of Philosophy. _________________________________ Chairperson: Dr. Thomas E. Prisinzano _________________________________ Dr. Brian S. J. Blagg _________________________________ Dr. Michael F. Rafferty _________________________________ Dr. Paul R. Hanson _________________________________ Dr. Susan M. Lunte Date Defended: July 18, 2012 The Dissertation Committee for Katherine M. Prevatt-Smith certifies that this is the approved version of the following dissertation: INVESTIGATION OF NATURAL PRODUCT SCAFFOLDS FOR THE DEVELOPMENT OF OPIOID RECEPTOR LIGANDS _________________________________ Chairperson: Dr. Thomas E. Prisinzano Date approved: July 18, 2012 ii ABSTRACT Kappa opioid (KOP) receptors have been suggested as an alternative target to the mu opioid (MOP) receptor for the treatment of pain because KOP activation is associated with fewer negative side-effects (respiratory depression, constipation, tolerance, and dependence). The KOP receptor has also been implicated in several abuse-related effects in the central nervous system (CNS). KOP ligands have been investigated as pharmacotherapies for drug abuse; KOP agonists have been shown to modulate dopamine concentrations in the CNS as well as attenuate the self-administration of cocaine in a variety of species, and KOP antagonists have potential in the treatment of relapse. One drawback of current opioid ligand investigation is that many compounds are based on the morphine scaffold and thus have similar properties, both positive and negative, to the parent molecule. Thus there is increasing need to discover new chemical scaffolds with opioid receptor activity. -
309 Molecular Role of Dopamine in Anhedonia Linked to Reward
[Frontiers In Bioscience, Scholar, 10, 309-325, March 1, 2018] Molecular role of dopamine in anhedonia linked to reward deficiency syndrome (RDS) and anti- reward systems Mark S. Gold8, Kenneth Blum,1-7,10 Marcelo Febo1, David Baron,2 Edward J Modestino9, Igor Elman10, Rajendra D. Badgaiyan10 1Department of Psychiatry, McKnight Brain Institute, University of Florida, College of Medicine, Gainesville, FL, USA, 2Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of South- ern California, Los Angeles, CA, USA, 3Global Integrated Services Unit University of Vermont Center for Clinical and Translational Science, College of Medicine, Burlington, VT, USA, 4Department of Addiction Research, Dominion Diagnostics, LLC, North Kingstown, RI, USA, 5Center for Genomics and Applied Gene Technology, Institute of Integrative Omics and Applied Biotechnology (IIOAB), Nonakuri, Purbe Medinpur, West Bengal, India, 6Division of Neuroscience Research and Therapy, The Shores Treatment and Recovery Center, Port St. Lucie, Fl., USA, 7Division of Nutrigenomics, Sanus Biotech, Austin TX, USA, 8Department of Psychiatry, Washington University School of Medicine, St. Louis, Mo, USA, 9Depart- ment of Psychology, Curry College, Milton, MA USA,, 10Department of Psychiatry, Wright State University, Boonshoft School of Medicine, Dayton, OH ,USA. TABLE OF CONTENTS 1. Abstract 2. Introduction 3. Anhedonia and food addiction 4. Anhedonia in RDS Behaviors 5. Anhedonia hypothesis and DA as a “Pleasure” molecule 6. Reward genes and anhedonia: potential therapeutic targets 7. Anti-reward system 8. State of At of Anhedonia 9. Conclusion 10. Acknowledgement 11. References 1. ABSTRACT Anhedonia is a condition that leads to the loss like “anti-reward” phenomena. These processes of feelings pleasure in response to natural reinforcers may have additive, synergistic or antagonistic like food, sex, exercise, and social activities. -
New Markers in the Mycotox Profile
New Markers in the MycoTOX Profile We are happy to announce the addition of four new mycotoxin markers to our MycoTOX Profile. The test now includes 11 mycotoxins from 40 species of mold, making it by far the most comprehensive and competitively priced mycotoxin test available. It also still more sensitive and accurate than other tests available, because we use LC/MS/MS technology. Here is an overview of the four new mycotoxin markers: Gliotoxin Gliotoxin (GTX) is produced by the mold genus Aspergillus. Aspergillus spreads in the environment by releasing conidia which are capable of infiltrating the small alveolar airways of individuals. In order to evade the body’s defenses Aspergillus releases Gliotoxin to inhibit the immune system. One of the targets of Gliotoxin is PtdIns (3,4,5) P3. This results in the downregulation of phagocytic immune defense, which can lead to the exacerbation of polymicrobial infections. Gliotoxin impairs the activation of T-cells and induces apoptosis in monocytes and in monocyte-derived dendritic cells. These impairments can lead to multiple neurological syndromes. Mycophenolic Acid Mycophenolic Acid (MPA) produced by the Penicillium fungus. MPA is an immunosuppressant which inhibits the proliferation of B and T lymphocytes. MPA exposure can increase the risk of opportunistic infections such as Clostridia and Candida. MPA is associated with miscarriage and congenital malformations when the woman is exposed in pregnancy. Dihydrocitrinone Dihydrocitrinone is a metabolite of Citrinin (CTN), which is a mycotoxin that is produced by the mold species Aspergillus, Penicillium, and Monascus. CTN exposure can lead to nephropathy, because of its ability to increase permeability of mitochondrial membranes in the kidneys. -
Metabotropic Glutamate Receptors
mGluR Metabotropic glutamate receptors mGluR (metabotropic glutamate receptor) is a type of glutamate receptor that are active through an indirect metabotropic process. They are members of thegroup C family of G-protein-coupled receptors, or GPCRs. Like all glutamate receptors, mGluRs bind with glutamate, an amino acid that functions as an excitatoryneurotransmitter. The mGluRs perform a variety of functions in the central and peripheral nervous systems: mGluRs are involved in learning, memory, anxiety, and the perception of pain. mGluRs are found in pre- and postsynaptic neurons in synapses of the hippocampus, cerebellum, and the cerebral cortex, as well as other parts of the brain and in peripheral tissues. Eight different types of mGluRs, labeled mGluR1 to mGluR8, are divided into groups I, II, and III. Receptor types are grouped based on receptor structure and physiological activity. www.MedChemExpress.com 1 mGluR Agonists, Antagonists, Inhibitors, Modulators & Activators (-)-Camphoric acid (1R,2S)-VU0155041 Cat. No.: HY-122808 Cat. No.: HY-14417A (-)-Camphoric acid is the less active enantiomer (1R,2S)-VU0155041, Cis regioisomer of VU0155041, is of Camphoric acid. Camphoric acid stimulates a partial mGluR4 agonist with an EC50 of 2.35 osteoblast differentiation and induces μM. glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1. Purity: ≥98.0% Purity: ≥98.0% Clinical Data: No Development Reported Clinical Data: No Development Reported Size: 10 mM × 1 mL, 100 mg Size: 10 mM × 1 mL, 5 mg, 10 mg, 25 mg (2R,4R)-APDC (R)-ADX-47273 Cat. No.: HY-102091 Cat. No.: HY-13058B (2R,4R)-APDC is a selective group II metabotropic (R)-ADX-47273 is a potent mGluR5 positive glutamate receptors (mGluRs) agonist. -
Fungal Keratitis: Immune Recognition, Neutrophil-Hyphae Interactions, And
FUNGAL KERATITIS: IMMUNE RECOGNITION, NEUTROPHIL-HYPHAE INTERACTIONS, AND FUNGAL ANTI-OXIDATIVE DEFENSES by SIXTO MANUEL LEAL JR. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy Thesis Advisor: Eric Pearlman, Ph.D. Department of Pathology CASE WESTERN RESERVE UNIVERSITY August, 2012 CASE WESTERN RESERVE UNIVERSITY SCHOOL OF GRADUATE STUDIES We hereby approve the dissertation of ______________________________________________________ candidate for the Ph.D. degree *. (signed)_______________________________________________ (chair of the committee) ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ (date) _______________________ *We also certify that written approval has been obtained for any proprietary material contained therein. Dedication I dedicate this cumulative work to the invisible hand that has blessed my personal and academic life with incredible people, guidance, talent, courage, perseverance, and productivity. 3 Table of Contents List of Figures 7 List of Tables 9 Acknowledgements 10 List of Abbreviations 12 Abstract 14 Chapter 1. Introduction Fungi in their natural environment 16 Fungi and human disease 18 Fungi that cause human corneal infection 21 Fungal keratitis- Clinical characteristics and outcome 22 Anti-microbial Defenses at the Ocular Surface 23 Immune Recognition of Fungi 27 β2 integrins -
The G Protein-Coupled Glutamate Receptors As Novel Molecular Targets in Schizophrenia Treatment— a Narrative Review
Journal of Clinical Medicine Review The G Protein-Coupled Glutamate Receptors as Novel Molecular Targets in Schizophrenia Treatment— A Narrative Review Waldemar Kryszkowski 1 and Tomasz Boczek 2,* 1 General Psychiatric Ward, Babinski Memorial Hospital in Lodz, 91229 Lodz, Poland; [email protected] 2 Department of Molecular Neurochemistry, Medical University of Lodz, 92215 Lodz, Poland * Correspondence: [email protected] Abstract: Schizophrenia is a severe neuropsychiatric disease with an unknown etiology. The research into the neurobiology of this disease led to several models aimed at explaining the link between perturbations in brain function and the manifestation of psychotic symptoms. The glutamatergic hypothesis postulates that disrupted glutamate neurotransmission may mediate cognitive and psychosocial impairments by affecting the connections between the cortex and the thalamus. In this regard, the greatest attention has been given to ionotropic NMDA receptor hypofunction. However, converging data indicates metabotropic glutamate receptors as crucial for cognitive and psychomotor function. The distribution of these receptors in the brain regions related to schizophrenia and their regulatory role in glutamate release make them promising molecular targets for novel antipsychotics. This article reviews the progress in the research on the role of metabotropic glutamate receptors in schizophrenia etiopathology. Citation: Kryszkowski, W.; Boczek, T. The G Protein-Coupled Glutamate Keywords: schizophrenia; metabotropic glutamate receptors; positive allosteric modulators; negative Receptors as Novel Molecular Targets allosteric modulators; drug development; animal models of schizophrenia; clinical trials in Schizophrenia Treatment—A Narrative Review. J. Clin. Med. 2021, 10, 1475. https://doi.org/10.3390/ jcm10071475 1. Introduction Academic Editors: Andreas Reif, Schizophrenia is a common debilitating disease affecting about 0.3–1% of the human Blazej Misiak and Jerzy Samochowiec population worldwide [1]. -
Intramolecular Allosteric Communication in Dopamine D2 Receptor Revealed by Evolutionary Amino Acid Covariation
Intramolecular allosteric communication in dopamine D2 receptor revealed by evolutionary amino acid covariation Yun-Min Sunga, Angela D. Wilkinsb, Gustavo J. Rodrigueza, Theodore G. Wensela,1, and Olivier Lichtargea,b,1 aVerna and Marrs Mclean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030; and bDepartment of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030 Edited by Brian K. Kobilka, Stanford University School of Medicine, Stanford, CA, and approved February 16, 2016 (received for review August 19, 2015) The structural basis of allosteric signaling in G protein-coupled led us to ask whether ET could also uncover couplings among receptors (GPCRs) is important in guiding design of therapeutics protein sequence positions not in direct contact. and understanding phenotypic consequences of genetic variation. ET estimates the relative functional sensitivity of a protein to The Evolutionary Trace (ET) algorithm previously proved effective in variations at each residue position using phylogenetic distances to redesigning receptors to mimic the ligand specificities of functionally account for the functional divergence among sequence homologs distinct homologs. We now expand ET to consider mutual informa- (25, 26). Similar ideas can be applied to pairs of sequence positions tion, with validation in GPCR structure and dopamine D2 receptor to recompute ET as the average importance of the couplings be- (D2R) function. The new algorithm, called ET-MIp, identifies evolu- tween a residue and its direct structural neighbors (27). To measure tionarily relevant patterns of amino acid covariations. The improved the evolutionary coupling information between residue pairs, we predictions of structural proximity and D2R mutagenesis demon- present a new algorithm, ET-MIp, that integrates the mutual in- strate that ET-MIp predicts functional interactions between residue formation metric (MIp) (5) to the ET framework. -
A Benchmarking Study on Virtual Ligand Screening Against Homology Models of Human Gpcrs
bioRxiv preprint doi: https://doi.org/10.1101/284075; this version posted March 19, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. A benchmarking study on virtual ligand screening against homology models of human GPCRs Victor Jun Yu Lima,b, Weina Dua, Yu Zong Chenc, Hao Fana,d aBioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix No. 07-01, 138671, Singapore; bSaw Swee Hock School of Public Health, National University of Singapore, 12 Science Drive 2, 117549, Singapore; cDepartment of Pharmacy, National University of Singapore, 18 Science Drive 4, 117543, Singapore; dDepartment of Biological Sciences, National University of Singapore, 16 Science Drive 4, Singapore 117558 To whom correspondence should be addressed: Dr. Hao Fan, Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix No. 07-01, 138671, Singapore; Telephone: +65 64788500; Email: [email protected] Keywords: G-protein-coupled receptor, GPCR, X-ray crystallography, virtual screening, homology modelling, consensus enrichment 1 bioRxiv preprint doi: https://doi.org/10.1101/284075; this version posted March 19, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Abstract G-protein-coupled receptor (GPCR) is an important target class of proteins for drug discovery, with over 27% of FDA-approved drugs targeting GPCRs. However, being a membrane protein, it is difficult to obtain the 3D crystal structures of GPCRs for virtual screening of ligands by molecular docking. -
PESTICIDE EVALUATION REPORT and SAFER USE ACTION PLAN(PERSUAP)
PESTICIDE EVALUATION REPORT and SAFER USE ACTION PLAN(PERSUAP) By the USAID Kenya Agricultural Value Chain Enterprises (USAID-KAVES) Project Revised March 2014 This publication was produced for review by the United States Agency for International Development. It was prepared by Fintrac Inc. under contract reference AID-623-C-13-00002 Fintrac Inc. www.fintrac.com [email protected] US Virgin Islands 3077 Kronprindsens Gade 72 St. Thomas, USVI 00802 Tel: (340) 776-7600 Fax: (340) 776-7601 Washington, D.C. 1400 16th Street NW, Suite 400 Washington, D.C. 20036 USA Tel: (202) 462-3304 Fax: (202) 462-8478 USAID-KAVES Karen Office Park 3rd Floor Baobab, Suite H Langata Road, Karen, Nairobi Prepared by Fintrac Inc. USAID-KAVES PERSUAP 3 KENYA AGRICULTURAL VALUE CHAIN ENTERPRISES PROJECT (KAVES) PESTICIDE EVALUATION REPORT and SAFER USE ACTION PLAN (PERSUAP) Revised March 20134 The author’s views expressed in this publication do not necessarily reflect the views of the United States Agency for International Development or the United States government. Photos by Fintrac Inc. and Real IPM. Prepared by Fintrac Inc. INITIAL ENVIRONMENTAL EXAMINATION, AMENDMENTPESTICIDE EVALUATION REPORT AND SAFER USE ACTION PLAN (PERSUAP) FOR USAID/KENYA’S KENYA AGRICULTURAL VALUE CHAIN ENTERPRISES (KAVES) PROJECT CONTRACT NO. AID-623-C-13-00002 PROJECT NAME: Kenya Agricultural Value Chain Enterprises (KAVES) Project REGION/COUNTRY: East Africa/Kenya PROGRAM AREA: 4.5 Agriculture, Feed the Future ORIGINATING OFFICE Agriculture Business and Environment Office CURRENT DATE (as of revisions): March 2014 IEE AMENDMENT: Yes PREPARED BY: Fintrac Inc. IMPLEMENTATION START: January 16, 2013 LOP AMOUNT: $39,810,558 IMPLEMENTATION END: January 15th 2018 Filename & date of original IEE: Kenya_FY09_EconGrowth_IEE_01xx09.doc The purpose of this IEE amendment is to approve the 2013 Pesticide Evaluation Report (PER) and Safer Use Action Plan (SUAP) developed under the KAVES project and which will be used during project implementation. -
Camello-XR Enables Visualization and Optogenetic Control of Gq/11 Signals and Receptor Trafficking in GPCR-Specific Domains
ARTICLE https://doi.org/10.1038/s42003-019-0292-y OPEN CaMello-XR enables visualization and optogenetic control of Gq/11 signals and receptor trafficking in GPCR-specific domains Dennis Eickelbeck1, Raziye Karapinar1, Alexander Jack 2, Sandra T. Suess1, Ruxandra Barzan3, Zohre Azimi3, 1234567890():,; Tatjana Surdin1, Michelle Grömmke1, Melanie D. Mark1, Klaus Gerwert4, Dirk Jancke3, Petra Wahle2, Katharina Spoida1 & Stefan Herlitze1 The signal specificity of G protein-coupled receptors (GPCRs) including serotonin receptors (5-HT-R) depends on the trafficking and localization of the GPCR within its subcellular signaling domain. Visualizing traffic-dependent GPCR signals in neurons is difficult, but important to understand the contribution of GPCRs to synaptic plasticity. We engineered 2+ CaMello (Ca -melanopsin-local-sensor) and CaMello-5HT2A for visualization of traffic- 2+ dependent Ca signals in 5-HT2A-R domains. These constructs consist of the light-activated 2+ Gq/11 coupled melanopsin, mCherry and GCaMP6m for visualization of Ca signals and receptor trafficking, and the 5-HT2A C-terminus for targeting into 5-HT2A-R domains. We show that the specific localization of the GPCR to its receptor domain drastically alters the dynamics and localization of the intracellular Ca2+ signals in different neuronal populations in vitro and in vivo. The CaMello method may be extended to every GPCR coupling to the Gq/ 11 pathway to help unravel new receptor-specific functions in respect to synaptic plasticity and GPCR localization. 1 Department of General Zoology and Neurobiology, ND7/31, Ruhr-University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany. 2 Developmental Neurobiology, ND6/72, Ruhr-University Bochum, Universitätsstr. -
(12) Patent Application Publication (10) Pub. No.: US 2006/0052435 A1 Van Der Graaf Et Al
US 20060052435A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2006/0052435 A1 Van der Graaf et al. (43) Pub. Date: Mar. 9, 2006 (54) SELECTIVE DOPAMIN D3 RECEPTOR (86) PCT No.: PCT/GB02/05595 AGONSTS FOR THE TREATMENT OF SEXUAL DYSFUNCTION (30) Foreign Application Priority Data (76) Inventors: Pieter Hadewijn Van der Graaf, Dec. 18, 2001 (GB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - O1302199 County of Kent (GB); Christopher Peter Wayman, County of Kent (GB); Publication Classification Andrew Douglas Baxter, Bury St. Edmunds (GB); Andrew Simon Cook, (51) Int. Cl. County of Kent (GB); Stephen A6IK 31/405 (2006.01) Kwok-Fung Wong, Guilford, CT (US) (52) U.S. Cl. .............................................................. 514/419 Correspondence Address: (57) ABSTRACT PFIZER INC. PATENT DEPARTMENT, MS8260-1611 The use of a composition comprising a Selective dopamine EASTERN POINT ROAD D3 receptor agonist, wherein Said dopamine D3 receptor GROTON, CT 06340 (US) agonist is at least about 15-times more functionally Selective for a dopamine D3 receptor as compared with a dopamine (21) Appl. No.: 10/499,210 D2 receptor when measured using the same functional assay, in the preparation of a medicament for the treatment and/or (22) PCT Filed: Dec. 10, 2002 prevention of Sexual dysfunction. Patent Application Publication Mar. 9, 2006 Sheet 1 of 2 US 2006/0052435 A1 Figure 1 A Selective D3 agonist provides a significant therapeutic window between prosexual and dose-limitind side effects Apomorphine EHV VE - vomiterection D27.2nMD33.9nM E HV H - hypotension O3 0.56nM Log Free plasma O. 1.0 O 1OO 1OOO conc (nM) D3D24973M agonist E noH noV D2 adOnist D2 ag Conclusion D3 No effect D2 & D3 mediates erection D2 mediates vomiting/hypotension Patent Application Publication Mar. -
Whittle-Neuropharm-2013.Pdf
Neuropharmacology 64 (2013) 414e423 Contents lists available at SciVerse ScienceDirect Neuropharmacology journal homepage: www.elsevier.com/locate/neuropharm Deep brain stimulation, histone deacetylase inhibitors and glutamatergic drugs rescue resistance to fear extinction in a genetic mouse model Nigel Whittle a,*, Claudia Schmuckermair a, Ozge Gunduz Cinar b,d, Markus Hauschild a, Francesco Ferraguti c, Andrew Holmes b,d, Nicolas Singewald a a Department of Pharmacology and Toxicology, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80 e 82/III, A-6020 Innsbruck, Austria b Laboratory of Behavioral and Genomic Neuroscience, National Institute on Alcoholism and Alcohol Abuse, National Institutes of Health, Bethesda, MD 20852, USA Center for Neuroscience and Regenerative Medicine at the Uniformed Services University of the Health Sciences, Bethesda, MD c Department of Pharmacology, Innsbruck Medical University, A-6020 Innsbruck, Austria d Center for Neuroscience and Regenerative Medicine at the Uniformed Services University of the Health Sciences, Bethesda, MD, USA article info abstract Article history: Anxiety disorders are characterized by persistent, excessive fear. Therapeutic interventions that reverse Received 30 March 2012 deficits in fear extinction represent a tractable approach to treating these disorders. We previously re- Received in revised form ported that 129S1/SvImJ (S1) mice show no extinction learning following normal fear conditioning. We 31 May 2012 now demonstrate that weak fear conditioning does permit fear reduction during massed extinction Accepted 6 June 2012 training in S1 mice, but reveals specificdeficiency in extinction memory consolidation/retrieval. Rescue of this impaired extinction consolidation/retrieval was achieved with D-cycloserine (N-methly-D-aspar- Keywords: tate partial agonist) or MS-275 (histone deacetylase (HDAC) inhibitor), applied after extinction training.