1
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Ellagic Acid and Its Metabolites as Potent and Selective Allosteric Inhibitors of Liver Pyruvate Kinase. Nutrients 2023; 15:nu15030577. [PMID: 36771285 PMCID: PMC9919951 DOI: 10.3390/nu15030577] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/14/2023] [Accepted: 01/18/2023] [Indexed: 01/25/2023] Open
Abstract
Liver pyruvate kinase (PKL) has recently emerged as a new target for non-alcoholic fatty liver disease (NAFLD), and inhibitors of this enzyme could represent a new therapeutic option. However, this breakthrough is complicated by selectivity issues since pyruvate kinase exists in four different isoforms. In this work, we report that ellagic acid (EA) and its derivatives, present in numerous fruits and vegetables, can inhibit PKL potently and selectively. Several polyphenolic analogues of EA were synthesized and tested to identify the chemical features responsible for the desired activity. Molecular modelling studies suggested that this inhibition is related to the stabilization of the PKL inactive state. This unique inhibition mechanism could potentially herald the development of new therapeutics for NAFLD.
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2
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Chhabra S, Shah K. The novel scaffold 1,2,4-benzothiadiazine-1,1-dioxide: a review. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02644-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Linciano P, Citti C, Luongo L, Belardo C, Maione S, Vandelli MA, Forni F, Gigli G, Laganà A, Montone CM, Cannazza G. Isolation of a High-Affinity Cannabinoid for the Human CB1 Receptor from a Medicinal Cannabis sativa Variety: Δ 9-Tetrahydrocannabutol, the Butyl Homologue of Δ 9-Tetrahydrocannabinol. JOURNAL OF NATURAL PRODUCTS 2020; 83:88-98. [PMID: 31891265 DOI: 10.1021/acs.jnatprod.9b00876] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The butyl homologues of Δ9-tetrahydrocannabinol, Δ9-tetrahydrocannabutol (Δ9-THCB), and cannabidiol, cannabidibutol (CBDB), were isolated from a medicinal Cannabis sativa variety (FM2) inflorescence. Appropriate spectroscopic and spectrometric characterization, including NMR, UV, IR, ECD, and HRMS, was carried out on both cannabinoids. The chemical structures and absolute configurations of the isolated cannabinoids were confirmed by comparison with the spectroscopic data of the respective compounds obtained by stereoselective synthesis. The butyl homologue of Δ9-THC, Δ9-THCB, showed an affinity for the human CB1 (Ki = 15 nM) and CB2 receptors (Ki = 51 nM) comparable to that of (-)-trans-Δ9-THC. Docking studies suggested the key bonds responsible for THC-like binding affinity for the CB1 receptor. The formalin test in vivo was performed on Δ9-THCB in order to reveal possible analgesic and anti-inflammatory properties. The tetrad test in mice showed a partial agonistic activity of Δ9-THCB toward the CB1 receptor.
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MESH Headings
- Analgesics/pharmacology
- Animals
- Cannabidiol/chemistry
- Cannabinoids/chemistry
- Cannabinoids/isolation & purification
- Cannabis/chemistry
- Dronabinol/chemistry
- Dronabinol/isolation & purification
- Humans
- Medical Marijuana
- Mice
- Molecular Structure
- Receptor, Cannabinoid, CB1/chemistry
- Receptor, Cannabinoid, CB1/isolation & purification
- Receptor, Cannabinoid, CB1/metabolism
- Receptor, Cannabinoid, CB2/chemistry
- Receptor, Cannabinoid, CB2/metabolism
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Affiliation(s)
- Pasquale Linciano
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Campi 103 , 41125 Modena , Italy
| | - Cinzia Citti
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Campi 103 , 41125 Modena , Italy
- Mediteknology s.r.l. , Via Arnesano , 73100 Lecce , Italy
- CNR NANOTEC , Campus Ecotekne, Via Monteroni , 73100 Lecce , Italy
| | - Livio Luongo
- Department of Experimental Medicine, Division of Pharmacology , Università della Campania "L. Vanvitelli" , Via Santa Maria di Costantinopoli 16 , 80138 Naples , Italy
| | - Carmela Belardo
- Department of Experimental Medicine, Division of Pharmacology , Università della Campania "L. Vanvitelli" , Via Santa Maria di Costantinopoli 16 , 80138 Naples , Italy
| | - Sabatino Maione
- Department of Experimental Medicine, Division of Pharmacology , Università della Campania "L. Vanvitelli" , Via Santa Maria di Costantinopoli 16 , 80138 Naples , Italy
| | - Maria Angela Vandelli
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Campi 103 , 41125 Modena , Italy
| | - Flavio Forni
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Campi 103 , 41125 Modena , Italy
| | - Giuseppe Gigli
- CNR NANOTEC , Campus Ecotekne, Via Monteroni , 73100 Lecce , Italy
| | - Aldo Laganà
- CNR NANOTEC , Campus Ecotekne, Via Monteroni , 73100 Lecce , Italy
- Department of Chemistry , Sapienza University of Rome , Piazzale Aldo Moro 5 , 00185 Rome , Italy
| | - Carmela Maria Montone
- Department of Chemistry , Sapienza University of Rome , Piazzale Aldo Moro 5 , 00185 Rome , Italy
| | - Giuseppe Cannazza
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Campi 103 , 41125 Modena , Italy
- CNR NANOTEC , Campus Ecotekne, Via Monteroni , 73100 Lecce , Italy
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4
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Citti C, Linciano P, Russo F, Luongo L, Iannotta M, Maione S, Laganà A, Capriotti AL, Forni F, Vandelli MA, Gigli G, Cannazza G. A novel phytocannabinoid isolated from Cannabis sativa L. with an in vivo cannabimimetic activity higher than Δ 9-tetrahydrocannabinol: Δ 9-Tetrahydrocannabiphorol. Sci Rep 2019; 9:20335. [PMID: 31889124 PMCID: PMC6937300 DOI: 10.1038/s41598-019-56785-1] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 11/29/2019] [Indexed: 12/14/2022] Open
Abstract
(-)-Trans-Δ9-tetrahydrocannabinol (Δ9-THC) is the main compound responsible for the intoxicant activity of Cannabis sativa L. The length of the side alkyl chain influences the biological activity of this cannabinoid. In particular, synthetic analogues of Δ9-THC with a longer side chain have shown cannabimimetic properties far higher than Δ9-THC itself. In the attempt to define the phytocannabinoids profile that characterizes a medicinal cannabis variety, a new phytocannabinoid with the same structure of Δ9-THC but with a seven-term alkyl side chain was identified. The natural compound was isolated and fully characterized and its stereochemical configuration was assigned by match with the same compound obtained by a stereoselective synthesis. This new phytocannabinoid has been called (-)-trans-Δ9-tetrahydrocannabiphorol (Δ9-THCP). Along with Δ9-THCP, the corresponding cannabidiol (CBD) homolog with seven-term side alkyl chain (CBDP) was also isolated and unambiguously identified by match with its synthetic counterpart. The binding activity of Δ9-THCP against human CB1 receptor in vitro (Ki = 1.2 nM) resulted similar to that of CP55940 (Ki = 0.9 nM), a potent full CB1 agonist. In the cannabinoid tetrad pharmacological test, Δ9-THCP induced hypomotility, analgesia, catalepsy and decreased rectal temperature indicating a THC-like cannabimimetic activity. The presence of this new phytocannabinoid could account for the pharmacological properties of some cannabis varieties difficult to explain by the presence of the sole Δ9-THC.
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Affiliation(s)
- Cinzia Citti
- Mediteknology spin-off company of the National Council of Research (CNR), Via Arnesano, 73100, Lecce, Italy
- Institute of Nanotechnology of the National Council of Research (CNR NANOTEC), Via Monteroni, 73100, Lecce, Italy
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125, Modena, Italy
| | - Pasquale Linciano
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125, Modena, Italy
| | - Fabiana Russo
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125, Modena, Italy
| | - Livio Luongo
- Department of Experimental Medicine, Division of Pharmacology, Università della Campania "L. Vanvitelli", Via Santa Maria di Costantinopoli 16, 80138, Naples, Italy
| | - Monica Iannotta
- Department of Experimental Medicine, Division of Pharmacology, Università della Campania "L. Vanvitelli", Via Santa Maria di Costantinopoli 16, 80138, Naples, Italy
| | - Sabatino Maione
- Department of Experimental Medicine, Division of Pharmacology, Università della Campania "L. Vanvitelli", Via Santa Maria di Costantinopoli 16, 80138, Naples, Italy
| | - Aldo Laganà
- Institute of Nanotechnology of the National Council of Research (CNR NANOTEC), Via Monteroni, 73100, Lecce, Italy
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Anna Laura Capriotti
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Flavio Forni
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125, Modena, Italy
| | - Maria Angela Vandelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125, Modena, Italy
| | - Giuseppe Gigli
- Institute of Nanotechnology of the National Council of Research (CNR NANOTEC), Via Monteroni, 73100, Lecce, Italy
| | - Giuseppe Cannazza
- Institute of Nanotechnology of the National Council of Research (CNR NANOTEC), Via Monteroni, 73100, Lecce, Italy.
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125, Modena, Italy.
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5
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Islam MK, Kim S, Kim HK, Kim YH, Lee YM, Choi G, Baek AR, Sung BK, Kim M, Cho AE, Kang H, Lee GH, Choi SH, Lee T, Park JA, Chang Y. Synthesis and Evaluation of Manganese(II)-Based Ethylenediaminetetraacetic Acid-Ethoxybenzyl Conjugate as a Highly Stable Hepatobiliary Magnetic Resonance Imaging Contrast Agent. Bioconjug Chem 2018; 29:3614-3625. [PMID: 30383368 DOI: 10.1021/acs.bioconjchem.8b00560] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this study, we designed and synthesized a highly stable manganese (Mn2+)-based hepatobiliary complex by tethering an ethoxybenzyl (EOB) moiety with an ethylenediaminetetraacetic acid (EDTA) coordination cage as an alternative to the well-established hepatobiliary gadolinium (Gd3+) chelates and evaluated its usage as a T1 hepatobiliary magnetic resonance imaging (MRI) contrast agent (CA). This new complex exhibits higher r1 relaxivity (2.3 mM-1 s-1) than clinically approved Mn2+-based hepatobiliary complex Mn-DPDP (1.6 mM-1 s-1) at 1.5 T. Mn-EDTA-EOB shows much higher kinetic inertness than that of clinically approved Gd3+-based hepatobiliary MRI CAs, such as Gd-DTPA-EOB and Gd-BOPTA. In addition, in vivo biodistribution and MRI enhancement patterns of this new Mn2+ chelate are comparable to those of Gd3+-based hepatobiliary MRI CAs. The diagnostic efficacy of the new complex was demonstrated by its enhanced tumor detection sensitivity in a liver cancer model using in vivo MRI.
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Affiliation(s)
| | | | | | - Yeoun-Hee Kim
- Institute of New Drug Research , Myungmoon Bio , 180, Yuram-ro , Dong-gu, Daegu 41059 , Korea
| | | | | | | | | | - Minsup Kim
- Department of Bioinformatics , Korea University Sejong Campus , 2511, Sejong-ro , Sejong City 30019 , Korea
| | - Art E Cho
- Department of Bioinformatics , Korea University Sejong Campus , 2511, Sejong-ro , Sejong City 30019 , Korea
| | | | | | - Seon Hee Choi
- Laboratory Animal Center , Daegu-Gyeongbuk Medical Innovation Foundation , 80, Chumbok-ro , Dong-gu, Daegu 41061 , Korea
| | - Taekwan Lee
- Laboratory Animal Center , Daegu-Gyeongbuk Medical Innovation Foundation , 80, Chumbok-ro , Dong-gu, Daegu 41061 , Korea
| | - Ji-Ae Park
- Molecular Imaging Research Center , Korea Institute of Radiological and Medical Sciences , Seoul 139-706 , Korea
| | - Yongmin Chang
- Department of Radiology , Kyungpook National University Hospital , 130 Dongdeok-ro , Jung-gu, Daegu 41944 , Korea
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6
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Drapier T, Geubelle P, Bouckaert C, Nielsen L, Laulumaa S, Goffin E, Dilly S, Francotte P, Hanson J, Pochet L, Kastrup JS, Pirotte B. Enhancing Action of Positive Allosteric Modulators through the Design of Dimeric Compounds. J Med Chem 2018; 61:5279-5291. [DOI: 10.1021/acs.jmedchem.8b00250] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Thomas Drapier
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), ULiège, Quartier Hôpital, Avenue Hippocrate, 15, B36, B-4000 Liège, Belgium
| | - Pierre Geubelle
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), ULiège, Quartier Hôpital, Avenue Hippocrate, 15, B36, B-4000 Liège, Belgium
- Laboratory of Molecular Pharmacology, GIGA-Molecular Biology of Diseases, ULiège, B34, Quartier Hôpital, Avenue de l’hôpital, 11, B-4000 Liège, Belgium
| | - Charlotte Bouckaert
- NAmur MEdicine & Drug Innovation Center (NAMEDIC), NARILIS, UNamur, rue de Bruxelles 61, B-5000 Namur, Belgium
| | - Lise Nielsen
- Biostructural Research, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Saara Laulumaa
- Biostructural Research, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Eric Goffin
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), ULiège, Quartier Hôpital, Avenue Hippocrate, 15, B36, B-4000 Liège, Belgium
| | - Sébastien Dilly
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), ULiège, Quartier Hôpital, Avenue Hippocrate, 15, B36, B-4000 Liège, Belgium
| | - Pierre Francotte
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), ULiège, Quartier Hôpital, Avenue Hippocrate, 15, B36, B-4000 Liège, Belgium
| | - Julien Hanson
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), ULiège, Quartier Hôpital, Avenue Hippocrate, 15, B36, B-4000 Liège, Belgium
- Laboratory of Molecular Pharmacology, GIGA-Molecular Biology of Diseases, ULiège, B34, Quartier Hôpital, Avenue de l’hôpital, 11, B-4000 Liège, Belgium
| | - Lionel Pochet
- NAmur MEdicine & Drug Innovation Center (NAMEDIC), NARILIS, UNamur, rue de Bruxelles 61, B-5000 Namur, Belgium
| | - Jette Sandholm Kastrup
- Biostructural Research, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Bernard Pirotte
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), ULiège, Quartier Hôpital, Avenue Hippocrate, 15, B36, B-4000 Liège, Belgium
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7
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“Heart-cut” bidimensional achiral-chiral liquid chromatography applied to the evaluation of stereoselective metabolism, in vivo biological activity and brain response to chiral drug candidates targeting the central nervous system. J Chromatogr A 2016; 1443:152-61. [DOI: 10.1016/j.chroma.2016.03.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 03/08/2016] [Accepted: 03/11/2016] [Indexed: 01/01/2023]
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8
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Du P, Zhou H, Sui Y, Liu Q, Zou K. Asymmetric synthesis of 3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1- dioxides catalyzed by scandium(III)-inda-Pybox. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Citti C, Battisti UM, Cannazza G, Jozwiak K, Stasiak N, Puja G, Ravazzini F, Ciccarella G, Braghiroli D, Parenti C, Troisi L, Zoli M. 7-Chloro-5-(furan-3-yl)-3-methyl-4H-benzo[e][1,2,4]thiadiazine 1,1-Dioxide as Positive Allosteric Modulator of α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid (AMPA) Receptor. The End of the Unsaturated-Inactive Paradigm? ACS Chem Neurosci 2016; 7:149-60. [PMID: 26580317 DOI: 10.1021/acschemneuro.5b00257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
5-Arylbenzothiadiazine type compounds acting as positive allosteric modulators of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPA-PAMs) have received particular attention in the past decade for their nootropic activity and lack of the excitotoxic side effects of direct agonists. Recently, our research group has published the synthesis and biological activity of 7-chloro-5-(3-furanyl)-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide (1), one of the most active benzothiadiazine-derived AMPA-PAMs in vitro to date. However, 1 exists as two stereolabile enantiomers, which rapidly racemize in physiological conditions, and only one isomer is responsible for the pharmacological activity. In the present work, experiments carried out with rat liver microsomes show that 1 is converted by hepatic cytochrome P450 to the corresponding unsaturated derivative 2 and to the corresponding pharmacologically inactive benzenesulfonamide 3. Surprisingly, patch-clamp experiments reveal that 2 displays an activity comparable to that of the parent compound. Molecular modeling studies were performed to rationalize these results. Furthermore, mice cerebral microdialysis studies suggest that 2 is able to cross the blood-brain barrier and increases acetylcholine and serotonin levels in the hippocampus. The experimental data disclose that the achiral hepatic metabolite 2 possesses the same pharmacological activity of its parent compound 1 but with an enhanced chemical and stereochemical stability, as well as an improved pharmacokinetic profile compared with 1.
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Affiliation(s)
- Cinzia Citti
- Dipartimento
di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via per Monteroni, 73100 Lecce, Italy
- CNR
NANOTEC, Campus Ecoteckne dell’Università del Salento, Via per
Monteroni, 73100 Lecce, Italy
| | - Umberto M. Battisti
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Department
of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Giuseppe Cannazza
- CNR
NANOTEC, Campus Ecoteckne dell’Università del Salento, Via per
Monteroni, 73100 Lecce, Italy
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Krzysztof Jozwiak
- Laboratory
of Biopharmacy, Department of Chemistry, Medical University of Lublin, ul. W. Chodzki 4a, 20-093 Lublin, Poland
| | - Natalia Stasiak
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Giulia Puja
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Federica Ravazzini
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Giuseppe Ciccarella
- Dipartimento
di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via per Monteroni, 73100 Lecce, Italy
- CNR
NANOTEC, Campus Ecoteckne dell’Università del Salento, Via per
Monteroni, 73100 Lecce, Italy
| | - Daniela Braghiroli
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Carlo Parenti
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Luigino Troisi
- Dipartimento
di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via per Monteroni, 73100 Lecce, Italy
| | - Michele Zoli
- Dipartimento
di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Campi 287, 41125 Modena, Italy
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10
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AMPA receptor-positive allosteric modulators for the treatment of schizophrenia: an overview of recent patent applications. Future Med Chem 2016; 7:473-91. [PMID: 25875874 DOI: 10.4155/fmc.15.4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The role of glutamate and its receptors in central nervous system biology and disease has long been of interest to scientists involved in both fundamental research and drug discovery, however the complex pharmacology and lack of highly selective compounds has severely hampered drug discovery efforts in this area. Recent advances in the identification and profiling of positive allosteric modulators of the AMPA receptor offer a potential way forward and the hope of a new treatment for schizophrenia. This article will review recent patent applications published in this area.
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11
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Battisti UM, Citti C, Rastelli G, Pinzi L, Puja G, Ravazzini F, Ciccarella G, Braghiroli D, Cannazza G. An unexpected reversal in the pharmacological stereoselectivity of benzothiadiazine AMPA positive allosteric modulators. MEDCHEMCOMM 2016. [DOI: 10.1039/c6md00440g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stereodiscrimination process in the binding of the R isomer with the receptor pocket is ruled by van der Waals interactions and/or H-bonding with water molecules.
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Affiliation(s)
- Umberto M. Battisti
- Department of Life Sciences
- University of Modena & Reggio Emilia
- 41125 Modena
- Italy
- Department of Medicinal Chemistry
| | - Cinzia Citti
- Department of Biological and Environmental Sciences and Technologies
- University of Salento
- 73100 Lecce
- Italy
- CNR-NANOTEC
| | - Giulio Rastelli
- Department of Life Sciences
- University of Modena & Reggio Emilia
- 41125 Modena
- Italy
| | - Luca Pinzi
- Department of Life Sciences
- University of Modena & Reggio Emilia
- 41125 Modena
- Italy
| | - Giulia Puja
- Department of Life Sciences
- University of Modena & Reggio Emilia
- 41125 Modena
- Italy
| | - Federica Ravazzini
- Department of Life Sciences
- University of Modena & Reggio Emilia
- 41125 Modena
- Italy
| | - Giuseppe Ciccarella
- Department of Biological and Environmental Sciences and Technologies
- University of Salento
- 73100 Lecce
- Italy
- CNR-NANOTEC
| | - Daniela Braghiroli
- Department of Life Sciences
- University of Modena & Reggio Emilia
- 41125 Modena
- Italy
| | - Giuseppe Cannazza
- Department of Life Sciences
- University of Modena & Reggio Emilia
- 41125 Modena
- Italy
- CNR-NANOTEC
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12
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Cannazza G, Battisti UM, Carrozzo MM, Cazzato AS, Braghiroli D, Parenti C, Troisi L. Development of an in vitro liquid chromatography–mass spectrometry method to evaluate stereo and chemical stability of new drug candidates employing immobilized artificial membrane column. J Chromatogr A 2014; 1363:216-25. [DOI: 10.1016/j.chroma.2014.05.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 05/14/2014] [Accepted: 05/28/2014] [Indexed: 10/25/2022]
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13
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Carrozzo MM, Battisti UM, Cannazza G, Puia G, Ravazzini F, Falchicchio A, Perrone S, Citti C, Jozwiak K, Braghiroli D, Parenti C, Troisi L. Design, stereoselective synthesis, configurational stability and biological activity of 7-chloro-9-(furan-3-yl)-2,3,3a,4-tetrahydro-1H-benzo[e]pyrrolo[2,1-c][1,2,4]thiadiazine 5,5-dioxide. Bioorg Med Chem 2014; 22:4667-76. [DOI: 10.1016/j.bmc.2014.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 07/10/2014] [Accepted: 07/11/2014] [Indexed: 11/30/2022]
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14
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Ptak CP, Hsieh CL, Weiland GA, Oswald RE. Role of stoichiometry in the dimer-stabilizing effect of AMPA receptor allosteric modulators. ACS Chem Biol 2014; 9:128-33. [PMID: 24152170 PMCID: PMC3947009 DOI: 10.1021/cb4007166] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Protein dimerization provides a mechanism for the modulation of cellular signaling events. In α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid (AMPA) receptors, the rapidly desensitizing, activated state has been correlated with a weakly dimeric, glutamate-binding domain conformation. Allosteric modulators can form bridging interactions that stabilize the dimer interface. While most modulators can only bind to one position with a one modulator per dimer ratio, some thiazide-based modulators can bind to the interface in two symmetrical positions with a two modulator per dimer ratio. Based on small-angle X-ray scattering (SAXS) experiments, dimerization curves for the isolated glutamate-binding domain show that a second modulator binding site produces both an increase in positive cooperativity and a decrease in the EC50 for dimerization. Four body binding equilibrium models that incorporate a second dimer-stabilizing ligand were developed to fit the experimental data. The work illustrates why stoichiometry should be an important consideration during the rational design of dimerizing modulators.
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Affiliation(s)
- Christopher P. Ptak
- Department of Molecular
Medicine and ‡Department of Population Medicine
and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
| | - Ching-Lin Hsieh
- Department of Molecular
Medicine and ‡Department of Population Medicine
and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
| | - Gregory A. Weiland
- Department of Molecular
Medicine and ‡Department of Population Medicine
and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
| | - Robert E. Oswald
- Department of Molecular
Medicine and ‡Department of Population Medicine
and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
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Dindulkar SD, Lim KT, Cho BK, Jeong YT. Green Approach Toward One Pot Cascade Synthesis of 3-Aryl-3,4-Dihydro-1,2,4 Benzothiadiazine-1,1-Dioxides. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2013.769986] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Pirotte B, Francotte P, Goffin E, de Tullio P. AMPA receptor positive allosteric modulators: a patent review. Expert Opin Ther Pat 2013; 23:615-28. [DOI: 10.1517/13543776.2013.770840] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Chen H, Wang CZ, Ding C, Wild C, Copits B, Swanson GT, Johnson KM, Zhou J. A combined bioinformatics and chemoinformatics approach for developing asymmetric bivalent AMPA receptor positive allosteric modulators as neuroprotective agents. ChemMedChem 2013; 8:226-30. [PMID: 23281122 PMCID: PMC3733225 DOI: 10.1002/cmdc.201200554] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Indexed: 11/05/2022]
Abstract
PAMs new in town! An effective, combined bioinformatics and chemoinformatics approach was applied to the design of novel asymmetric bivalent α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor positive allosteric modulators (PAMs) with marked potency in vitro and efficacy in vivo for preventing neuroapoptosis. The novel chemotype could provide pharmacological probes and potential therapeutic agents for glutamatergic hypofunction and its related neurological and psychiatric disorders.
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Affiliation(s)
- Haijun Chen
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Cheng Z. Wang
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Chunyong Ding
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Christopher Wild
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Bryan Copits
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago 60611, IL (USA)
| | - Geoffrey T. Swanson
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago 60611, IL (USA)
| | - Kenneth M. Johnson
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, Center for Addicition Research, University of Texas Medical Branch, Galveston 77555, TX (USA)
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