HEK293/A2A/Gα15 Human/Recombinant ADORA2A ; A2ar
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(12) Patent Application Publication (10) Pub. No.: US 2004/0224020 A1 Schoenhard (43) Pub
US 2004O224020A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2004/0224020 A1 Schoenhard (43) Pub. Date: Nov. 11, 2004 (54) ORAL DOSAGE FORMS WITH (22) Filed: Dec. 18, 2003 THERAPEUTICALLY ACTIVE AGENTS IN CONTROLLED RELEASE CORES AND Related U.S. Application Data IMMEDIATE RELEASE GELATIN CAPSULE COATS (60) Provisional application No. 60/434,839, filed on Dec. 18, 2002. (76) Inventor: Grant L. Schoenhard, San Carlos, CA (US) Publication Classification Correspondence Address: (51) Int. Cl. ................................................... A61K 9/24 Janet M. McNicholas (52) U.S. Cl. .............................................................. 424/471 McAndrews, Held & Malloy, Ltd. 34th Floor (57) ABSTRACT 500 W. Madison Street Chicago, IL 60661 (US) The present invention relates to oral dosage form with active agents in controlled release cores and in immediate release (21) Appl. No.: 10/742,672 gelatin capsule coats. Patent Application Publication Nov. 11, 2004 Sheet 1 of 3 US 2004/0224020 A1 r N 2.S Hr s Patent Application Publication Nov. 11, 2004 Sheet 2 of 3 US 2004/0224020 A1 r CN -8 e N va N . t Cd NOLLYRILNONOO Patent Application Publication Nov. 11, 2004 Sheet 3 of 3 US 2004/0224020 A1 US 2004/0224020 A1 Nov. 11, 2004 ORAL DOSAGE FORMS WITH released formulations, a long t is particularly disadvan THERAPEUTICALLY ACTIVE AGENTS IN tageous to patients Seeking urgent treatment and to maintain CONTROLLED RELEASE CORES AND MEC levels. A second difference in the pharmacokinetic IMMEDIATE RELEASE GELATIN CAPSULE profiles of controlled release in comparison to immediate COATS release drug formulations is that the duration of Sustained plasma levels is longer in the controlled release formula CROSS REFERENCED APPLICATIONS tions. -
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. -
Augmentation of Morphine-Induced Sensitization but Reduction in Morphine Tolerance and Reward in Delta-Opioid Receptor Knockout Mice
Neuropsychopharmacology (2009) 34, 887–898 & 2009 Nature Publishing Group All rights reserved 0893-133X/09 $32.00 www.neuropsychopharmacology.org Augmentation of Morphine-Induced Sensitization but Reduction in Morphine Tolerance and Reward in Delta-Opioid Receptor Knockout Mice ,1 1 VI Chefer* and TS Shippenberg 1Integrative Neuroscience Section, Behavioral Neuroscience Branch, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA Studies in experimental animals have shown that individuals exhibiting enhanced sensitivity to the locomotor-activating and rewarding properties of drugs of abuse are at increased risk for the development of compulsive drug-seeking behavior. The purpose of the present study was to assess the effect of constitutive deletion of delta-opioid receptors (DOPr) on the rewarding properties of morphine as well as on the development of sensitization and tolerance to the locomotor-activating effects of morphine. Locomotor activity testing revealed that mice lacking DOPr exhibit an augmentation of context-dependent sensitization following repeated, alternate injections of morphine (20 mg/kg; s.c.; 5 days). In contrast, the development of tolerance to the locomotor-activating effects of morphine following chronic morphine administration (morphine pellet: 25 mg: 3 days) is reduced relative to WT mice. The conditioned rewarding effects of morphine were reduced significantly in DOPrKO mice as compared to WT controls. Similar findings were obtained in response to pharmacological inactivation of DOPr in WT mice, indicating that observed effects are not due to developmental adaptations that occur as a consequence of constitutive deletion of DOPr. Together, these findings indicate that the endogenous DOPr system is recruited in response to both repeated and chronic morphine administration and that this recruitment serves an essential function in the development of tolerance, behavioral sensitization, and the conditioning of opiate reward. -
Submaxillary Gland and the A2a- and A2b-Adrenoceptor Subtypes 1Anton D
Br. J. Pharmacol. (1989), 98, 890-897 Differences between the cx2-adrenoceptor in rat submaxillary gland and the a2A- and a2B-adrenoceptor subtypes 1Anton D. Michel, Dana N. Lodry & Roger L. Whiting Institute of Pharmacology, Syntex Research, 3401 Hillview Avenue, Palo Alto, CA, 94303, U.S.A. 1 The a2-adrenoceptors of rat submaxillary gland, labelled with [3H]-rauwolscine, were character- ized by use of a range of subtype selective ligands and were compared to rabbit spleen a2A-adrenoceptors and rat kidney a2B-adrenoceptors. 2 In rat submaxillary gland, [3H]-rauwolscine labelled an apparently homogeneous population of binding sites with relatively low affinity (Kd= 11.65 nM) compared to the affinity in rat kidney (Kd = 2.18 nM) and rabbit spleen (Kd = 4.64 nM). 3 In competition studies using 16 ligands the a2-adrenoceptors in rat submaxillary gland appeared to differ from both the x2A-adrenoceptor of rabbit spleen (r = 0.62) and also the a2B-adrenoceptor of rat kidney (r = 0.28). 4 The affinity data obtained with benoxathian, imiloxan and WB 4101 indicated the presence of an a2B-adrenoceptor in rat submaxillary gland. However, data for chlorpromazine, oxymetazoline, spiroxatrine and xylometazoline indicated that submaxillary gland a2-adrenoceptors were of the a2A subtype. The affinity estimate for prazosin in rat submaxillary gland was intermediate between its affinity at the ae2A- and a2B-adrenoceptors while affinity estimates for idazoxan and phentolamine in rat submaxillary gland were greater than those obtained at either the c2A- or x2B-adrenoceptor. 5 These data indicate that rat submaxillary gland a2-adrenoceptors differ from the CX2A- and a2B-adrenoceptors found in rabbit spleen and rat kidney, respectively. -
An Immortalized Myocyte Cell Line, HL-1, Expresses a Functional D
J Mol Cell Cardiol 32, 2187–2193 (2000) doi:10.1006/jmcc.2000.1241, available online at http://www.idealibrary.com on An Immortalized Myocyte Cell Line, HL-1, Expresses a Functional -Opioid Receptor Claire L. Neilan1, Erin Kenyon1, Melissa A. Kovach1, Kristin Bowden1, William C. Claycomb2, John R. Traynor3 and Steven F. Bolling1 1Department of Cardiac Surgery, University of Michigan, B558 MSRB II, Ann Arbor, MI 48109-0686, USA, 2Department of Biochemistry and Molecular Biology, Louisiana State University Medical Center, New Orleans, LA 70112, USA and 3Department of Pharmacology, University of Michigan, 1301 MSRB III, Ann Arbor, MI 48109-0632, USA (Received 17 March 2000, accepted in revised form 30 August 2000, published electronically 25 September 2000) C. L. N,E.K,M.A.K,K.B,W.C.C,J.R.T S. F. B.An Immortalized Myocyte Cell Line, HL-1, Expresses a Functional -Opioid Receptor. Journal of Molecular and Cellular Cardiology (2000) 32, 2187–2193. The present study characterizes opioid receptors in an immortalized myocyte cell line, HL-1. Displacement of [3H]bremazocine by selective ligands for the mu (), delta (), and kappa () receptors revealed that only the -selective ligands could fully displace specific [3H]bremazocine binding, indicating the presence of only the -receptor in these cells. Saturation binding studies with the -antagonist naltrindole 3 afforded a Bmax of 32 fmols/mg protein and a KD value for [ H]naltrindole of 0.46 n. The binding affinities of various ligands for the receptor in HL-1 cell membranes obtained from competition binding assays were similar to those obtained using membranes from a neuroblastoma×glioma cell line, NG108-15. -
The Role of Acetylcholine in Cocaine Addiction
Neuropsychopharmacology (2008) 33, 1779–1797 & 2008 Nature Publishing Group All rights reserved 0893-133X/08 $30.00 www.neuropsychopharmacology.org Perspective The Role of Acetylcholine in Cocaine Addiction ,1 1,2 Mark J Williams* and Bryon Adinoff 1Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA; 2Mental Health Service, VA North Texas Health Care System, Dallas, TX, USA Central nervous system cholinergic neurons arise from several discrete sources, project to multiple brain regions, and exert specific effects on reward, learning, and memory. These processes are critical for the development and persistence of addictive disorders. Although other neurotransmitters, including dopamine, glutamate, and serotonin, have been the primary focus of drug research to date, a growing preclinical literature reveals a critical role of acetylcholine (ACh) in the experience and progression of drug use. This review will present and integrate the findings regarding the role of ACh in drug dependence, with a primary focus on cocaine and the muscarinic ACh system. Mesostriatal ACh appears to mediate reinforcement through its effect on reward, satiation, and aversion, and chronic cocaine administration produces neuroadaptive changes in the striatum. ACh is further involved in the acquisition of conditional associations that underlie cocaine self-administration and context-dependent sensitization, the acquisition of associations in conditioned learning, and drug procurement through its effects on arousal and attention. Long-term cocaine use may induce neuronal alterations in the brain that affect the ACh system and impair executive function, possibly contributing to the disruptions in decision making that characterize this population. These primarily preclinical studies suggest that ACh exerts a myriad of effects on the addictive process and that persistent changes to the ACh system following chronic drug use may exacerbate the risk of relapse during recovery. -
Design and Synthesis of Cyclic Analogs of the Kappa Opioid Receptor Antagonist Arodyn
Design and synthesis of cyclic analogs of the kappa opioid receptor antagonist arodyn By © 2018 Solomon Aguta Gisemba 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. Chair: Dr. Blake Peterson Co-Chair: Dr. Jane Aldrich Dr. Michael Rafferty Dr. Teruna Siahaan Dr. Thomas Tolbert Date Defended: 18 April 2018 The dissertation committee for Solomon Aguta Gisemba certifies that this is the approved version of the following dissertation: Design and synthesis of cyclic analogs of the kappa opioid receptor antagonist arodyn Chair: Dr. Blake Peterson Co-Chair: Dr. Jane Aldrich Date Approved: 10 June 2018 ii Abstract Opioid receptors are important therapeutic targets for mood disorders and pain. Kappa opioid receptor (KOR) antagonists have recently shown potential for treating drug addiction and 1,2,3 4 8 depression. Arodyn (Ac[Phe ,Arg ,D-Ala ]Dyn A(1-11)-NH2), an acetylated dynorphin A (Dyn A) analog, has demonstrated potent and selective KOR antagonism, but can be rapidly metabolized by proteases. Cyclization of arodyn could enhance metabolic stability and potentially stabilize the bioactive conformation to give potent and selective analogs. Accordingly, novel cyclization strategies utilizing ring closing metathesis (RCM) were pursued. However, side reactions involving olefin isomerization of O-allyl groups limited the scope of the RCM reactions, and their use to explore structure-activity relationships of aromatic residues. Here we developed synthetic methodology in a model dipeptide study to facilitate RCM involving Tyr(All) residues. Optimized conditions that included microwave heating and the use of isomerization suppressants were applied to the synthesis of cyclic arodyn analogs. -
(12) United States Patent (10) Patent No.: US 9,687,445 B2 Li (45) Date of Patent: Jun
USOO9687445B2 (12) United States Patent (10) Patent No.: US 9,687,445 B2 Li (45) Date of Patent: Jun. 27, 2017 (54) ORAL FILM CONTAINING OPIATE (56) References Cited ENTERC-RELEASE BEADS U.S. PATENT DOCUMENTS (75) Inventor: Michael Hsin Chwen Li, Warren, NJ 7,871,645 B2 1/2011 Hall et al. (US) 2010/0285.130 A1* 11/2010 Sanghvi ........................ 424/484 2011 0033541 A1 2/2011 Myers et al. 2011/0195989 A1* 8, 2011 Rudnic et al. ................ 514,282 (73) Assignee: LTS Lohmann Therapie-Systeme AG, Andernach (DE) FOREIGN PATENT DOCUMENTS CN 101703,777 A 2, 2001 (*) Notice: Subject to any disclaimer, the term of this DE 10 2006 O27 796 A1 12/2007 patent is extended or adjusted under 35 WO WOOO,32255 A1 6, 2000 U.S.C. 154(b) by 338 days. WO WO O1/378O8 A1 5, 2001 WO WO 2007 144080 A2 12/2007 (21) Appl. No.: 13/445,716 (Continued) OTHER PUBLICATIONS (22) Filed: Apr. 12, 2012 Pharmaceutics, edited by Cui Fude, the fifth edition, People's Medical Publishing House, Feb. 29, 2004, pp. 156-157. (65) Prior Publication Data Primary Examiner — Bethany Barham US 2013/0273.162 A1 Oct. 17, 2013 Assistant Examiner — Barbara Frazier (74) Attorney, Agent, or Firm — ProPat, L.L.C. (51) Int. Cl. (57) ABSTRACT A6 IK 9/00 (2006.01) A control release and abuse-resistant opiate drug delivery A6 IK 47/38 (2006.01) oral wafer or edible oral film dosage to treat pain and A6 IK 47/32 (2006.01) substance abuse is provided. -
Viewed the Existence of Multiple Muscarinic CNS Penetration May Occur When the Blood-Brain Barrier Receptors in the Mammalian Myocardium and Have Is Compromised
BMC Pharmacology BioMed Central Research article Open Access In vivo antimuscarinic actions of the third generation antihistaminergic agent, desloratadine G Howell III†1, L West†1, C Jenkins2, B Lineberry1, D Yokum1 and R Rockhold*1 Address: 1Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA and 2Tougaloo College, Tougaloo, MS, USA Email: G Howell - [email protected]; L West - [email protected]; C Jenkins - [email protected]; B Lineberry - [email protected]; D Yokum - [email protected]; R Rockhold* - [email protected] * Corresponding author †Equal contributors Published: 18 August 2005 Received: 06 October 2004 Accepted: 18 August 2005 BMC Pharmacology 2005, 5:13 doi:10.1186/1471-2210-5-13 This article is available from: http://www.biomedcentral.com/1471-2210/5/13 © 2005 Howell et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: Muscarinic receptor mediated adverse effects, such as sedation and xerostomia, significantly hinder the therapeutic usefulness of first generation antihistamines. Therefore, second and third generation antihistamines which effectively antagonize the H1 receptor without significant affinity for muscarinic receptors have been developed. However, both in vitro and in vivo experimentation indicates that the third generation antihistamine, desloratadine, antagonizes muscarinic receptors. To fully examine the in vivo antimuscarinic efficacy of desloratadine, two murine and two rat models were utilized. The murine models sought to determine the efficacy of desloratadine to antagonize muscarinic agonist induced salivation, lacrimation, and tremor. -
Acetylcholine Signaling System in Progression of Lung Cancers
Pharmacology & Therapeutics 194 (2019) 222–254 Contents lists available at ScienceDirect Pharmacology & Therapeutics journal homepage: www.elsevier.com/locate/pharmthera Acetylcholine signaling system in progression of lung cancers Jamie R. Friedman a,1, Stephen D. Richbart a,1,JustinC.Merritta,KathleenC.Browna, Nicholas A. Nolan a, Austin T. Akers a, Jamie K. Lau b, Zachary R. Robateau a, Sarah L. Miles a,PiyaliDasguptaa,⁎ a Department of Biomedical Sciences, Joan C. Edwards School of Medicine, 1700 Third Avenue, Huntington, WV 25755 b Biology Department, Center for the Sciences, Box 6931, Radford University, Radford, Virginia 24142 article info abstract Available online 3 October 2018 The neurotransmitter acetylcholine (ACh) acts as an autocrine growth factor for human lung cancer. Several lines of evidence show that lung cancer cells express all of the proteins required for the uptake of choline (choline Keywords: transporter 1, choline transporter-like proteins) synthesis of ACh (choline acetyltransferase, carnitine acetyl- Lung cancer transferase), transport of ACh (vesicular acetylcholine transport, OCTs, OCTNs) and degradation of ACh (acetyl- Acetylcholine cholinesterase, butyrylcholinesterase). The released ACh binds back to nicotinic (nAChRs) and muscarinic Cholinergic receptors on lung cancer cells to accelerate their proliferation, migration and invasion. Out of all components Proliferation of the cholinergic pathway, the nAChR-signaling has been studied the most intensely. The reason for this trend Invasion Anti-cancer drugs is due to genome-wide data studies showing that nicotinic receptor subtypes are involved in lung cancer risk, the relationship between cigarette smoke and lung cancer risk as well as the rising popularity of electronic ciga- rettes considered by many as a “safe” alternative to smoking. -
In Vivoactivation of a Mutantμ-Opioid Receptor by Naltrexone Produces A
The Journal of Neuroscience, March 23, 2005 • 25(12):3229–3233 • 3229 Brief Communication In Vivo Activation of a Mutant -Opioid Receptor by Naltrexone Produces a Potent Analgesic Effect But No Tolerance: Role of -Receptor Activation and ␦-Receptor Blockade in Morphine Tolerance Sabita Roy, Xiaohong Guo, Jennifer Kelschenbach, Yuxiu Liu, and Horace H. Loh Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455 Opioid analgesics are the standard therapeutic agents for the treatment of pain, but their prolonged use is limited because of the development of tolerance and dependence. Recently, we reported the development of a -opioid receptor knock-in (KI) mouse in which the -opioid receptor was replaced by a mutant receptor (S196A) using a homologous recombination gene-targeting strategy. In these animals, the opioid antagonist naltrexone elicited antinociceptive effects similar to those of partial agonists acting in wild-type (WT) mice; however, development of tolerance and physical dependence were greatly reduced. In this study, we test the hypothesis that the failure of naltrexone to produce tolerance in these KI mice is attributable to its simultaneous inhibition of ␦-opioid receptors and activation of -opioid receptors. Simultaneous implantation of a morphine pellet and continuous infusion of the ␦-opioid receptor antagonist naltrindole prevented tolerance development to morphine in both WT and KI animals. Moreover, administration of SNC-80 [(ϩ)-4-[(␣R)-␣-((2S,5R)-4-allyl-2,5-dimethyl-1-piperazinyl)-3-methoxybenzyl]-N,N-diethylbenzamide], a ␦ agonist, in the naltrexone- pelleted KI animals resulted in a dose-dependent induction in tolerance development to both morphine- and naltrexone-induced anal- gesia. We conclude that although simultaneous activation of both - and ␦-opioid receptors results in tolerance development, -opioid receptor activation in conjunction with ␦-opioid receptor blockade significantly attenuates the development of tolerance. -
Intravta Deltorphin, but Not DPDPE, Induces Place Preference in Ethanoldrinking Rats
ALCOHOLISM:CLINICAL AND EXPERIMENTAL RESEARCH Vol. 38, No. 1 January 2014 Intra-VTA Deltorphin, But Not DPDPE, Induces Place Preference in Ethanol-Drinking Rats: Distinct DOR-1 and DOR-2 Mechanisms Control Ethanol Consumption and Reward Jennifer M. Mitchell, Elyssa B. Margolis, Allison R. Coker, Daicia C. Allen, and Howard L. Fields Background: While there is a growing body of evidence that the delta opioid receptor (DOR) modu- lates ethanol (EtOH) consumption, development of DOR-based medications is limited in part because there are 2 pharmacologically distinct DOR subtypes (DOR-1 and DOR-2) that can have opposing actions on behavior. Methods: We studied the behavioral influence of the DOR-1-selective agonist [D-Pen2,D-Pen5]- Enkephalin (DPDPE) and the DOR-2-selective agonist deltorphin microinjected into the ventral tegmental area (VTA) on EtOH consumption and conditioned place preference (CPP) and the physio- logical effects of these 2 DOR agonists on GABAergic synaptic transmission in VTA-containing brain slices from Lewis rats. Results: Neither deltorphin nor DPDPE induced a significant place preference in EtOH-na€ıve Lewis rats. However, deltorphin (but not DPDPE) induced a significant CPP in EtOH-drinking rats. In con- trast to the previous finding that intra-VTA DOR-1 activity inhibits EtOH consumption and that this inhibition correlates with a DPDPE-induced inhibition of GABA release, here we found no effect of DOR-2 activity on EtOH consumption nor was there a correlation between level of drinking and deltorphin-induced change in GABAergic synaptic transmission. Conclusions: These data indicate that the therapeutic potential of DOR agonists for alcohol abuse is through a selective action at the DOR-1 form of the receptor.