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Acidic biphenyl derivatives: Synthesis and biological activity of a new series of potent 5-HT4 receptor antagonists. Bioorg Med Chem 2013; 21:7134-45. [DOI: 10.1016/j.bmc.2013.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 08/30/2013] [Accepted: 09/01/2013] [Indexed: 11/20/2022]
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2
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Eglen RM, Hegde SS. Leading Article: Central & Peripheral Nervous Systems: 5-Hydroxytryptamine (5-HT)4receptors: physiology, pharmacology and therapeutic potential. Expert Opin Investig Drugs 2008. [DOI: 10.1517/13543784.5.4.373] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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3
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Zefirova ON, Zefirov NS. Physiologically active compounds interacting with serotonin (5-hydroxytryptamine) receptors. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2001v070n04abeh000654] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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4
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Clark RD, Jahangir A, Alam M, Rocha C, Lin L, Bjorner B, Nguyen K, Grady C, Williams TJ, Stepan G, Tang HM, Ford APDW. Identification of a 5-HT4 receptor antagonist clinical candidate through side-chain modification. Bioorg Med Chem Lett 2005; 15:1697-700. [PMID: 15745824 DOI: 10.1016/j.bmcl.2005.01.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2004] [Revised: 01/13/2005] [Accepted: 01/18/2005] [Indexed: 10/25/2022]
Abstract
Replacement of the N-butyl side-chain of lead 5-HT4 receptor antagonist 2 with propanesulfonylpiperidinyl, morpholinyl, and piperazinyl groups led to higher affinity analogs 4-6. In vitro drug metabolism screens and cassette pharmacokinetic studies in the dog led to identification of the N-methylpiperazinyl analog (6b), which displayed pharmacokinetic, selectivity, and safety parameters sufficient for advancement to the clinic for the treatment of urinary incontinence.
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Affiliation(s)
- Robin D Clark
- Department of Medicinal Chemistry, Roche Palo Alto, 3431 Hillview Avenue, Palo Alto, CA 94303, USA.
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Rivail L, Giner M, Gastineau M, Berthouze M, Soulier JL, Fischmeister R, Lezoualc'h F, Maigret B, Sicsic S, Berque-Bestel I. New insights into the human 5-HT4 receptor binding site: exploration of a hydrophobic pocket. Br J Pharmacol 2004; 143:361-70. [PMID: 15351779 PMCID: PMC1575351 DOI: 10.1038/sj.bjp.0705950] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
A body of evidences suggests that a hydrophobic pocket of the human 5-HT(4) receptor contributes to the high affinity of some bulky 5-HT(4) ligands. A thorough study of this pocket was performed using mutagenesis and molecular modeling. Ligand binding or competition studies with selected bulky ligands (RS39604, RS100235, [(3)H]GR113808 and ML11411) and small ligands (5-HT and ML10375) were carried out on wild-type and mutant receptors (W7.40A/F, Y7.43F, R3.28L) transiently transfected in COS-7 cells. The functional activity of the mutated receptors was evaluated by measuring the ability of 5-HT to stimulate adenylyl cyclase. For W7.40F mutation, no changes in the affinity of studied ligands and in the functional activity of the mutant receptor were observed, in contrary to W7.40A mutation, which abolished both binding of ligands and 5-HT-induced cAMP production. Mutation R3.28L revealed a totally silent receptor with a basal level of cAMP production similar to the mock control despite its ability to product cAMP in the presence of 5-HT. Moreover, a one order loss of affinity of RS39604 and a 45-fold increase of ML11411 affinity were observed. Mutation Y7.43F modified the affinity of GR113808, which displays a 13-fold lower affinity for the mutant than for the wild-type receptor. In conclusion, in the hydrophobic pocket, two polar amino acids are able to interact through hydrogen bonds with bulky ligands depending on their chemical properties. Moreover, these experimental data may validate the proposed new three-dimensional model of the human 5-HT(4) receptor.
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Affiliation(s)
- Lucie Rivail
- Biocis, UMR-8076 (CNRS), Faculté de Pharmacie, Université Paris-Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France
| | - Mireille Giner
- Biocis, UMR-8076 (CNRS), Faculté de Pharmacie, Université Paris-Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France
| | - Monique Gastineau
- Unité INSERM U-446, Laboratoire de Cardiologie Moléculaire et Cellulaire, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Magali Berthouze
- Unité INSERM U-446, Laboratoire de Cardiologie Moléculaire et Cellulaire, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Jean-Louis Soulier
- Biocis, UMR-8076 (CNRS), Faculté de Pharmacie, Université Paris-Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France
| | - Rodolphe Fischmeister
- Unité INSERM U-446, Laboratoire de Cardiologie Moléculaire et Cellulaire, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Frank Lezoualc'h
- Unité INSERM U-446, Laboratoire de Cardiologie Moléculaire et Cellulaire, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Bernard Maigret
- UMR-7565, Equipe de Dynamique des Assemblages Membranaires, Université Henri Poincaré, 54506 Vandœuvre, Nancy, France
| | - Sames Sicsic
- Biocis, UMR-8076 (CNRS), Faculté de Pharmacie, Université Paris-Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France
| | - Isabelle Berque-Bestel
- Biocis, UMR-8076 (CNRS), Faculté de Pharmacie, Université Paris-Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France
- Author for correspondence:
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Chapple CR, Radley SC, Martin SW, Sellers DJ, Chess-Williams R. Serotonin-induced potentiation of cholinergic responses to electrical field stimulation in normal and neurogenic overactive human detrusor muscle. BJU Int 2004; 93:599-604. [PMID: 15008739 DOI: 10.1111/j.1464-410x.2003.04681.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To compare the serotonin (5-HT)4-receptor-mediated effects of 5-HT on the potentiation of cholinergic responses to electrical-field stimulation (EFS) in isolated strips of detrusor muscle from patients with normal or neurogenic overactive bladders. MATERIAL AND METHODS Strips of detrusor muscle were field-stimulated (10 Hz, 0.01 ms duration, 60 V for 5 s) at 100-s intervals until consistent responses were obtained. In the presence of methiothepin, ketanserin and ondansetron (all 1 mumol/L) to block 5-HT1, 5-HT2 and 5-HT3 receptors, respectively, the cumulative administration of 5-HT or the selective 5-HT4 agonist cisapride, produced concentration-dependent enhancement of responses to EFS in both types of tissue. RESULTS The maximum potentiation induced by 5-HT in neurogenic overactive detrusor muscle was reduced (P < 0.05) by about half compared to normal detrusor muscle, but EC50 values obtained in normal and overactive tissue were not significantly different. Cisapride was less potent than 5-HT and acted as a partial agonist relative to 5-HT. The selective 5-HT4 receptor antagonist RS-100235 was a potent antagonist of the 5-HT-induced potentiation of responses to EFS. At 3 nmol/L RS-100235 antagonized the effects of 5-HT in both groups of tissues without affecting the maximum responses. The affinity estimates (apparent pKB values of 9.2-9.5) for this antagonist were similar in normal and overactive detrusor muscle. CONCLUSIONS These results indicate that 5-HT4 receptor-mediated potentiation of field-stimulated responses is lower in the neurogenic overactive detrusor muscle than in normal tissue. 5-HT4 receptor antagonist affinity is unchanged in the neurogenic overactive bladder.
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Affiliation(s)
- C R Chapple
- Department of Urology, Royal Hallamshire Hospital, Sheffield, UK.
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7
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Kowalczyk BA, Robinson, Gardner JO. Process Development of the Synthetic Route to Sulamserod Hydrochloride. Org Process Res Dev 2000. [DOI: 10.1021/op0002040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bruce A. Kowalczyk
- Chemical Development, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304, U.S.A
| | - Robinson
- Chemical Development, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304, U.S.A
| | - John O. Gardner
- Chemical Development, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304, U.S.A
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8
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Bockaert J, Claeysen S, Sebben M, Dumuis A. 5-HT4 receptors: gene, transduction and effects on olfactory memory. Ann N Y Acad Sci 1998; 861:1-15. [PMID: 9928233 DOI: 10.1111/j.1749-6632.1998.tb10167.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
In this paper we discuss 1) the primary structures, pharmacology, and brain distribution of cloned 5-HT4 receptors; 2) the chromosomal localization of the h5-HT4 receptor; 3) whether benzamides are full or partial agonists because of a species or a coupling difference; 4) the intrinsic activity of 5-HT4 receptors and inverse agonism of GR125487 in COS-7 cells but not in colliculi neurons; 5) the modulation of 5-HT4 receptor binding and activity; and 6) the long-term blockade of K+ channels by 5-HT4 agonists and its effect on olfactory memory. We conclude that 1) the cloning of 5-HT4 receptors in different species using RT-PCR from different tissues reveals the presence of several splice variants for 5-HT4 receptors differing in the C-terminal part, downstream from the amino acid L358; 2) the pharmacological properties of 5-HT4 receptors are dependent on the cellular context in which they are expressed; and 3) 5-HT4 agonists can be added to the list of compounds having pro-cognitive properties.
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Affiliation(s)
- J Bockaert
- CNRS UPR 9023, Centre CNRS-INSERM de Pharmacologie-Endocrinologie (CCIPE), Montpellier, France.
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9
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Schaus JM, Thompson DC, Bloomquist WE, Susemichel AD, Calligaro DO, Cohen ML. Synthesis and structure-activity relationships of potent and orally active 5-HT4 receptor antagonists: indazole and benzimidazolone derivatives. J Med Chem 1998; 41:1943-55. [PMID: 9599243 DOI: 10.1021/jm970857f] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A series of indole-3-carboxamides, indazole-3-carboxamides, and benzimidazolone-3-carboxamides was synthesized and evaluated for antagonist affinity at the 5-HT4 receptor in the rat esophagus. The endo-3-tropanamine derivatives in the indazole and benzimidazolone series possessed greater 5-HT4 receptor affinity than the corresponding indole analogues. 5-HT4 receptor antagonist affinity was further increased by alkylation at N-1 of the aromatic heterocycle. In a series of 1-isopropylindazole-3-carboxamides, replacement of the bicyclic tropane ring system with the monocyclic piperidine ring system or an acyclic aminoalkylene chain led to potent 5-HT4 receptor antagonists. In particular, those systems in which the basic amine was substituted with groups capable of forming hydrogen bonds showed increased 5-HT4 receptor antagonist activity. While some of these compounds displayed high affinity for other neurotransmitter receptors (in particular, 5-HT3, alpha1, and 5-HT2A receptors), as the conformational flexibility of the amine moiety increased, the selectivity for the 5-HT4 receptor also increased. From this series of compounds, we identified LY353433 (1-(1-methylethyl)-N-[2-[4-[(tricyclo[3.3.1.1(3, 7)]dec-1-ylcarbonyl)amino]-1-piperidinyl]ethyl]-1H-indazole-3- carboxamide) as a potent and selective 5-HT4 receptor antagonist with clinically suitable pharmacodynamics.
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MESH Headings
- Adamantane/administration & dosage
- Adamantane/analogs & derivatives
- Adamantane/chemical synthesis
- Adamantane/chemistry
- Adamantane/pharmacology
- Administration, Oral
- Adrenergic alpha-Antagonists/chemical synthesis
- Adrenergic alpha-Antagonists/chemistry
- Adrenergic alpha-Antagonists/pharmacology
- Animals
- Aorta/drug effects
- Aorta/physiology
- Brain/drug effects
- Brain/metabolism
- Drug Evaluation, Preclinical
- Esophagus/drug effects
- Esophagus/physiology
- Guinea Pigs
- Ileum/drug effects
- Ileum/physiology
- In Vitro Techniques
- Indazoles/administration & dosage
- Indazoles/chemical synthesis
- Indazoles/chemistry
- Indazoles/pharmacology
- Muscle Contraction/drug effects
- Muscle, Smooth/drug effects
- Muscle, Smooth/physiology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/physiology
- Rats
- Receptor, Serotonin, 5-HT2A
- Receptors, Adrenergic, alpha-1/drug effects
- Receptors, Serotonin/drug effects
- Receptors, Serotonin, 5-HT3
- Receptors, Serotonin, 5-HT4
- Serotonin Antagonists/administration & dosage
- Serotonin Antagonists/chemical synthesis
- Serotonin Antagonists/chemistry
- Serotonin Antagonists/pharmacology
- Structure-Activity Relationship
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Affiliation(s)
- J M Schaus
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
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Eglen RM. 5-Hydroxytryptamine (5-HT)4 receptors and central nervous system function: an update. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 1997; 49:9-24. [PMID: 9388383 DOI: 10.1007/978-3-0348-8863-9_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- R M Eglen
- Center for Biological Research, Neurobiology Unit, Roche Bioscience, Palo Alto, CA 94304, USA.
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Kowalczyk BA, Roberts PN, McEwen GK, Robinson J. Scale-Up of the Nitration of 1-Acetyl-3,4-dichloro-1,2-(ethylenedioxy)benzene Using Nitric Acid/Trifluoroacetic Acid. Org Process Res Dev 1997. [DOI: 10.1021/op970211x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bruce A. Kowalczyk
- Chemical Development, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304, and Syntex Chemicals, Inc., 2075 North 55th Street, Boulder, Colorado 80301
| | - Philip N. Roberts
- Chemical Development, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304, and Syntex Chemicals, Inc., 2075 North 55th Street, Boulder, Colorado 80301
| | - Gerald K. McEwen
- Chemical Development, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304, and Syntex Chemicals, Inc., 2075 North 55th Street, Boulder, Colorado 80301
| | - James Robinson
- Chemical Development, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304, and Syntex Chemicals, Inc., 2075 North 55th Street, Boulder, Colorado 80301
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Bonhaus DW, Berger J, Adham N, Branchek TA, Hsu SA, Loury DN, Leung E, Wong EH, Clark RD, Eglen RM. [3H]RS 57639, a high affinity, selective 5-HT4 receptor partial agonist, specifically labels guinea-pig striatal and rat cloned (5-HT4S and 5-HT4L) receptors. Neuropharmacology 1997; 36:671-9. [PMID: 9225293 DOI: 10.1016/s0028-3908(97)00039-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
RS 57639, by being a partial agonist in rat esophagus but a competitive antagonist in guinea-pig ileum, is one of several ligands which operationally discriminate among 5-HT4 receptors in different tissues. The discovery of splice variants of the 5-HT4 receptor, 5-HT4S and 5-HT4L, raises the possibility that this functional heterogeneity among 5-HT4 receptors may be due to differences in the interaction of ligands with different isoforms of the receptor. To test this idea, the functional and binding interactions of RS 57639 with rat 5-HT4S and 5-HT4L receptors were characterized. RS 57639 stimulated adenylate cyclase in cells expressing 5-HT4S or 5-HT4L receptors with similar potency (pEC50 = 7.9 +/- 0.1 and 7.6 +/- 0.1) and efficacy (71 +/- 3 and 59 +/- 4% of 5-HT). [3H]RS 57639 also bound to 5-HT4S and 5-HT4L receptors with similar affinity (Kd = 0.09 +/- 0.01 and 0.11 +/- 0.01 nM) and specificity (SB204070 > GR113808 > SDZ 205557 > cisapride > renzapride > alpha me-5-HT > 5-CT). Therefore, the operational differences among 5-HT4 receptors, detected with RS 57639, are not explained by differences in the interaction of the ligand with 5-HT4S and 5-HT4L receptors. [3H]RS 57639 binding to guinea-pig striatal membranes was also characterized. [3H]RS 57639 bound with high affinity (Kd = 0.25 +/- 0.07 nM) and a specificity similar to that of the 5-HT4 receptor antagonist, [3H]GR113808. Therefore, while the mechanism by which RS 57639 operationally distinguishes among 5-HT4 receptors was not determined, [3H]RS 57639 was shown to specifically label native and cloned 5-HT4 receptors. As the first selective agonist radioligand to be described for this receptor, [3H]RS 57639 may prove useful in further studies of receptor coupling and ligand interactions.
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Affiliation(s)
- D W Bonhaus
- Neurobiology Unit, Roche Bioscience, Palo Alto, CA 94303, USA
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Affiliation(s)
- L M Gaster
- SmithKline Beecham Pharmaceuticals, New Frontiers Science Park, Harlow, Essex, U.K
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Dumuis A, Ansanay H, Waeber C, Sebben M, Fagni L, Bockaert J. 5-HT4 receptors. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0165-7208(97)80017-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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