1
|
Gericke M, Skodda LH, Heinze T. Reactive xylan derivatives for azid-/alkyne-click-chemistry approaches — From modular synthesis to gel-formation. Carbohydr Polym 2023; 300:120251. [DOI: 10.1016/j.carbpol.2022.120251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/12/2022] [Accepted: 10/18/2022] [Indexed: 11/11/2022]
|
2
|
Dale NC, Johnstone EKM, Pfleger KDG. GPCR heteromers: An overview of their classification, function and physiological relevance. Front Endocrinol (Lausanne) 2022; 13:931573. [PMID: 36111299 PMCID: PMC9468249 DOI: 10.3389/fendo.2022.931573] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/08/2022] [Indexed: 11/25/2022] Open
Abstract
G protein-coupled receptors (GPCRs) are capable of interacting to form higher order structures such as homomers and heteromers. Heteromerisation in particular has implications for receptor function, with research showing receptors can attain unique expression, ligand binding, signalling and intracellular trafficking upon heteromerisation. As such, GPCR heteromers represent novel drug targets with extensive therapeutic potential. Changes to ligand affinity, efficacy and G protein coupling have all been described, with alterations to these pharmacological aspects now well accepted as common traits for heteromeric complexes. Changes in internalisation and trafficking kinetics, as well as β-arrestin interactions are also becoming more apparent, however, few studies to date have explicitly looked at the implications these factors have upon the signalling profile of a heteromer. Development of ligands to target GPCR heteromers both experimentally and therapeutically has been mostly concentrated on bivalent ligands due to difficulties in identifying and developing heteromer-specific ligands. Improving our understanding of the pharmacology and physiology of GPCR heteromers will enable further development of heteromer-specific ligands with potential to provide therapeutics with increased efficacy and decreased side effects.
Collapse
Affiliation(s)
- Natasha C. Dale
- Molecular Endocrinology and Pharmacology, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Nedlands, WA, Australia
- Australian Research Council Centre for Personalised Therapeutics Technologies, Perth, WA, Australia
| | - Elizabeth K. M. Johnstone
- Molecular Endocrinology and Pharmacology, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Nedlands, WA, Australia
- Australian Research Council Centre for Personalised Therapeutics Technologies, Perth, WA, Australia
- School of Biomedical Sciences, The University of Western Australia, Nedlands, WA, Australia
- *Correspondence: Kevin D. G. Pfleger, ; Elizabeth K. M. Johnstone,
| | - Kevin D. G. Pfleger
- Molecular Endocrinology and Pharmacology, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Nedlands, WA, Australia
- Australian Research Council Centre for Personalised Therapeutics Technologies, Perth, WA, Australia
- Dimerix Limited, Nedlands, Australia
- *Correspondence: Kevin D. G. Pfleger, ; Elizabeth K. M. Johnstone,
| |
Collapse
|
3
|
Tan DA, Massera C, McIldowie MJ, Mocerino M. Synthesis of Distally‐Bridged Chiral Resorcinarene Crowns. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel A. Tan
- Chemistry School of Molecular and Life Sciences Curtin University GPO Box U1987 6845 Perth Australia
| | - Chiara Massera
- Dipartimento di Scienze Chimiche della Vita e della Sostenibilità Ambientale Università degli Studi di Parma Parco Area delle Scienze 17/A 43124 Parma Italy
| | - Matthew J. McIldowie
- Chemistry School of Molecular and Life Sciences Curtin University GPO Box U1987 6845 Perth Australia
| | - Mauro Mocerino
- Chemistry School of Molecular and Life Sciences Curtin University GPO Box U1987 6845 Perth Australia
| |
Collapse
|
4
|
Botta J, Appelhans J, McCormick PJ. Continuing challenges in targeting oligomeric GPCR-based drugs. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2020; 169:213-245. [DOI: 10.1016/bs.pmbts.2019.11.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
5
|
Mozaffarnia S, Parsaee F, Payami E, Karami H, Soltani S, Rashidi M, Teimuri‐Mofrad R. Design, Synthesis and Biological Assessment of Novel 2‐(4‐Alkoxybenzylidine)‐2,3‐dihydro‐5,6‐dimethoxy‐1
H
‐inden‐1‐one Derivatives as hAChE and hBuChE Enzyme Inhibitors. ChemistrySelect 2019. [DOI: 10.1002/slct.201901973] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sakineh Mozaffarnia
- Department of Organic and BiochemistryFaculty of ChemistryUniversity of Tabriz 51664 Tabriz, Iran Tabriz Iran
- Research Center for Pharmaceutical NanotechnologyTabriz University of Medical Sciences, Tabriz Iran
| | - Faeze Parsaee
- Department of Organic and BiochemistryFaculty of ChemistryUniversity of Tabriz 51664 Tabriz, Iran Tabriz Iran
| | - Elmira Payami
- Department of Organic and BiochemistryFaculty of ChemistryUniversity of Tabriz 51664 Tabriz, Iran Tabriz Iran
| | - Hosna Karami
- Medicinal Chemistry DepartmentPharmacy FacultyTabriz University of Medical Sciences Tabriz
| | - Somaieh Soltani
- Medicinal Chemistry DepartmentPharmacy FacultyTabriz University of Medical Sciences Tabriz
| | - Mohammad‐Reza Rashidi
- Research Center for Pharmaceutical NanotechnologyTabriz University of Medical Sciences, Tabriz Iran
| | - Reza Teimuri‐Mofrad
- Department of Organic and BiochemistryFaculty of ChemistryUniversity of Tabriz 51664 Tabriz, Iran Tabriz Iran
| |
Collapse
|
6
|
Fabisiak A, Brzeminski P, Berkowska K, Marcinkowska E, Sicinski RR. Synthesis of 19-norcalcitriol analogs with pegylated alkylidene chains at C-2. J Steroid Biochem Mol Biol 2019; 185:251-255. [PMID: 30244047 DOI: 10.1016/j.jsbmb.2018.09.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/05/2018] [Accepted: 09/18/2018] [Indexed: 12/17/2022]
Abstract
The results presented in this paper constitute an extension of our synthetic efforts focused on 19-norvitamin D compounds possessing elongated 2-alkylidene substituents. Based on our previous results, molecular modeling studies, and docking experiments, we selected a novel 19-norcalcitriol analog with long chain at C-2 containing several ether moieties and terminated by 2-(pyridin-2'-yl)ethylamino fragment. It was expected that such structural modification might allow binding of transition metal by the ligand, increase solubility of the formed complexes as well as improve their affinity to the VDR. For comparison, a 19-norcalcitriol analog was also obtained with the terminal hydroxyl group at its pegylated 2-alkylidene substituent. The synthesis of the target vitamin D compounds described in this work was performed using the Wittig-Horner approach. The respective A-ring phosphine oxide was obtained starting from the D-(-)-quinic acid and then coupled with the known Grundmann ketone.
Collapse
Affiliation(s)
- Adrian Fabisiak
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Pawel Brzeminski
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Klaudia Berkowska
- Department of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Ewa Marcinkowska
- Department of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Rafal R Sicinski
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| |
Collapse
|
7
|
Kantner T, Alkhawaja B, Watts AG. In Situ Quenching of Trialkylphosphine Reducing Agents Using Water-Soluble PEG-Azides Improves Maleimide Conjugation to Proteins. ACS OMEGA 2017; 2:5785-5791. [PMID: 30023752 PMCID: PMC6044941 DOI: 10.1021/acsomega.7b01094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 08/11/2017] [Indexed: 05/26/2023]
Abstract
Trialkylphosphines tris(2-carboxy-ethyl)-phosphine and tris(3-hydroxypropyl)-phosphine are popular reagents for the reduction of cysteine residues in bioconjugation reactions using maleimides. However, it has been demonstrated that these phosphines are reactive toward maleimide, necessitating their removal before the addition of the Michael acceptor. Here, a method using water-soluble PEG-azides is reported for the quenching of trialkylphosphines in situ, which is demonstrated to improve the level of maleimide conjugation to proteins.
Collapse
|
8
|
Ji AY, Jin QM, Zhang DJ, Zhu H, Su C, Duan XH, Bian L, Sun ZP, Ni YC, Zhang J, Yang Z, Yin ZQ. Novel 18F-Labeled 1-Hydroxyanthraquinone Derivatives for Necrotic Myocardium Imaging. ACS Med Chem Lett 2017; 8:191-195. [PMID: 28197310 DOI: 10.1021/acsmedchemlett.6b00398] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 12/28/2016] [Indexed: 01/21/2023] Open
Abstract
Rapid detection and precise evaluation of myocardial viability is necessary to aid in clinical decision making whether to recommend revascularization for patients with myocardial infarction (MI). Three novel 18F-labeled 1-hydroxyanthraquinone derivatives were synthesized, characterized, and evaluated as potential necrosis avid imaging agents for assessment of myocardial viability. Among these tracers, [18F]FA3OP emerged as the most promising compound with best stability and highest targetability. Clear PET images of [18F]FA3OP were obtained in rat model of myocardial infarction and reperfusion at 1 h after injection. In addition, the possible mechanisms of [18F]FA3OP for necrotic myocardium were discussed. The results showed [19F]FA3OP may bind DNA to achieve targetability to necrotic myocardium by intercalation. In summary, [18F]FA3OP was a more promising "hot spot imaging" tracer for rapid visualization of necrotic myocardium.
Collapse
Affiliation(s)
- Ai-Yan Ji
- Department of Natural Medicinal Chemistry & Jiangsu Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Qiao-Mei Jin
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Dong-Jian Zhang
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Hua Zhu
- Key Laboratory of Carcinogenesis and Translational Research, Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Chang Su
- Department of Natural Medicinal Chemistry & Jiangsu Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Xing-Hua Duan
- Department of Natural Medicinal Chemistry & Jiangsu Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Li Bian
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
- College
of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Zi-Ping Sun
- Radiation
Medical Institute, Shandong Academy of Medical Sciences, Jinan 250062, Shandong, China
| | - Yi-Cheng Ni
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
- Theragnostic
Laboratory, Campus Gasthuisberg, KU Leuven, 3000 Leuven, Belgium
| | - Jian Zhang
- Laboratories
of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Zhi Yang
- Key Laboratory of Carcinogenesis and Translational Research, Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Zhi-Qi Yin
- Department of Natural Medicinal Chemistry & Jiangsu Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
| |
Collapse
|
9
|
Gober IN, Waters ML. Supramolecular Affinity Labeling of Histone Peptides Containing Trimethyllysine and Its Application to Histone Deacetylase Assays. J Am Chem Soc 2016; 138:9452-9. [DOI: 10.1021/jacs.6b02836] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Isaiah N. Gober
- Department
of Chemistry,
CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Marcey L. Waters
- Department
of Chemistry,
CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| |
Collapse
|
10
|
Gavey EL, Pilkington M. Employing Schiff-base macrocycles to probe the effect of ligand field on the relaxation dynamics of a family of DyIII SMMs. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
11
|
Bednářová E, Hybelbauerová S, Jindřich J. Optimized methods for preparation of 6(I)-(ω-sulfanyl-alkylene-sulfanyl)-β-cyclodextrin derivatives. Beilstein J Org Chem 2016; 12:349-52. [PMID: 26977195 PMCID: PMC4778511 DOI: 10.3762/bjoc.12.38] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 02/09/2016] [Indexed: 11/30/2022] Open
Abstract
A general high-yielding method for the preparation of monosubstituted β-cyclodextrin derivatives which have attached a thiol group in position 6 is described. The thiol group is attached through linkers of different lengths and repeating units (ethylene glycol or methylene). The target compounds were characterized by IR, MS and NMR spectra. A simple method for their complete conversion to the corresponding disulfides as well as a method for the reduction of the disulfides back to the thiols is presented. Both, thiols and disulfides are derivatives usable for well-defined covalent attachment of cyclodextrin to gold or polydopamine-coated solid surfaces.
Collapse
Affiliation(s)
- Eva Bednářová
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Simona Hybelbauerová
- Department of Teaching and Didactics of Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Jindřich Jindřich
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43, Prague 2, Czech Republic
| |
Collapse
|
12
|
Mukhopadhyay P, Baggelaar M, Erdelyi K, Cao Z, Cinar R, Fezza F, Ignatowska‐Janlowska B, Wilkerson J, van Gils N, Hansen T, Ruben M, Soethoudt M, Heitman L, Kunos G, Maccarrone M, Lichtman A, Pacher P, Van der Stelt M. The novel, orally available and peripherally restricted selective cannabinoid CB2 receptor agonist LEI-101 prevents cisplatin-induced nephrotoxicity. Br J Pharmacol 2016; 173:446-58. [PMID: 26398481 PMCID: PMC4728411 DOI: 10.1111/bph.13338] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 09/03/2015] [Accepted: 09/13/2015] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Here, we have characterized 3-cyclopropyl-1-(4-(6-((1,1-dioxidothiomorpholino)methyl)-5-fluoropyridin-2-yl)benzyl)imidazolidine-2,4-dione hydrochloride (LEI-101) as a novel, peripherally restricted cannabinoid CB2 receptor agonist, using both in vitro and in vivo models. EXPERIMENTAL APPROACH We investigated the effects of LEI-101 on binding and functional activity. We assessed its in vitro and in vivo selectivity. Efficacy of LEI-101 was determined in a mouse model of cisplatin-induced nephrotoxicity. KEY RESULTS LEI-101 behaved as a partial agonist at CB2 receptors using β-arrestin and GTPγS assays and was ~100-fold selective in CB2 /CB1 receptor-binding assays. It did not display any activity on endocannabinoid hydrolases and nor did it react with serine hydrolases in an activity-based protein profiling assay. In mice, LEI-101 had excellent oral bioavailability reaching high concentrations in the kidney and liver with minimal penetration into the brain. LEI-101 up to a dose of 60 mg·kg(-1) (p.o.) did not exert any CNS-mediated effects in the tetrad assay, in mice. LEI-101 (p.o. or i.p.) at 3 or 10 mg·kg(-1) dose-dependently prevented kidney dysfunction and/or morphological damage induced by cisplatin in mice. These protective effects were associated with improved renal histopathology, attenuated oxidative stress and inflammation in the kidney. These effects were absent in CB2 receptor knockout mice. CONCLUSION AND IMPLICATIONS These results indicate that LEI-101 is a selective, largely peripherally restricted, orally available CB2 receptor agonist with therapeutic potential in diseases that are associated with inflammation and/or oxidative stress, including kidney disease.
Collapse
Affiliation(s)
| | - Marc Baggelaar
- Department of Bio‐organic SynthesisLeiden UniversityLeidenThe Netherlands
| | | | | | | | - Filomena Fezza
- Department Experimental Medicine & SurgeryTor Vergata University of RomeRomeItaly
- European Center for Brain Research/Santa Lucia FoundationRomeItaly
| | | | | | - Noortje van Gils
- Department of Medicinal ChemistryLeiden UniversityLeidenThe Netherlands
| | - Thomas Hansen
- Department of Bio‐organic SynthesisLeiden UniversityLeidenThe Netherlands
| | - Marc Ruben
- Department of Bio‐organic SynthesisLeiden UniversityLeidenThe Netherlands
- Present address: Mercachem Inc.NijmegenThe Netherlands
| | | | - Laura Heitman
- Department of Medicinal ChemistryLeiden UniversityLeidenThe Netherlands
| | | | - Mauro Maccarrone
- European Center for Brain Research/Santa Lucia FoundationRomeItaly
- Department of MedicineCampus Bio‐Medico University of RomeRomeItaly
| | - Aron Lichtman
- Department Experimental Medicine & SurgeryTor Vergata University of RomeRomeItaly
| | - Pál Pacher
- National Institutes of HealthBethesdaMDUSA
| | | |
Collapse
|
13
|
Ai T, Qiu L, Xie J, Geraghty RJ, Chen L. Design and synthesis of an activity-based protein profiling probe derived from cinnamic hydroxamic acid. Bioorg Med Chem 2015; 24:686-92. [PMID: 26753813 DOI: 10.1016/j.bmc.2015.12.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/14/2015] [Accepted: 12/22/2015] [Indexed: 12/19/2022]
Abstract
In our continued effort to discover new anti-hepatitis C virus (HCV) agents, we validated the anti-replicon activity of compound 1, a potent and selective anti-HCV hydroxamic acid recently reported by us. Generally favorable physicochemical and in vitro absorption, distribution, metabolism, and excretion (ADME) properties exhibited by 1 made it an ideal parent compound from which activity-based protein profiling (ABPP) probe 3 was designed and synthesized. Evaluation of probe 3 revealed that it possessed necessary anti-HCV activity and selectivity. Therefore, we have successfully obtained compound 3 as a suitable ABPP probe to identify potential molecular targets of compound 1. Probe 3 and its improved analogs are expected to join a growing list of ABPP probes that have made important contributions to not only the studies of biochemical and cellular functions but also discovery of selective inhibitors of protein targets.
Collapse
Affiliation(s)
- Teng Ai
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Li Qiu
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Jiashu Xie
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Robert J Geraghty
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Liqiang Chen
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA.
| |
Collapse
|
14
|
Inkster JAH, Colin DJ, Seimbille Y. A novel 2-cyanobenzothiazole-based (18)F prosthetic group for conjugation to 1,2-aminothiol-bearing targeting vectors. Org Biomol Chem 2015; 13:3667-76. [PMID: 25678209 DOI: 10.1039/c4ob02637c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In a bid to find an efficient means to radiolabel biomolecules under mild conditions for PET imaging, a bifunctional (18)F prosthetic molecule has been developed. The compound, dubbed [(18)F]FPyPEGCBT, consists of a 2-substituted pyridine moiety for [(18)F]F(-) incorporation and a 2-cyanobenzothiazole moiety for coupling to terminal cysteine residues. The two functionalities are separated by a mini-PEG chain. [(18)F]FPyPEGCBT could be prepared from its corresponding 2-trimethylammonium triflate precursor (100 °C, 15 min, MeCN) in preparative yields of 11% ± 2 (decay corrected, n = 3) after HPLC purification. However, because the primary radiochemical impurity of the fluorination reaction will not interact with 1,2-aminothiol functionalities, the (18)F prosthetic could be prepared for bioconjugation reactions by way of partial purification on a molecularly imprinted polymer solid-phase extraction cartridge. [(18)F]FPyPEGCBT was used to (18)F-label a cyclo-(RGDfK) analogue which was modified with a terminal cysteine residue (TCEP·HCl, DIPEA, 30 min, 43 °C, DMF). Final decay-corrected yields of (18)F peptide were 7% ± 1 (n = 9) from end-of-bombardment. This novel integrin-imaging agent is currently being studied in murine models of cancer. We argue that [(18)F]FPyPEGCBT holds significant promise owing to its straightforward preparation, 'click'-like ease of use, and hydrophilic character. Indeed, the water-tolerant radio-bioconjugation protocol reported herein requires only one HPLC step for (18)F peptide purification and can be carried out remotely using a single automated synthesis unit over 124-132 min.
Collapse
Affiliation(s)
- James A H Inkster
- University Hospitals of Geneva, Cyclotron Unit, Geneva, Switzerland.
| | | | | |
Collapse
|
15
|
Németh T, Kormos A, Tóth T, Balogh GT, Huszthy P. Synthesis and cation binding of acridono-18-crown-6 ether type ligands. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1454-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
16
|
Hassan S, Ullrich A, Müller TJJ. Consecutive three-component synthesis of (hetero)arylated propargyl amides by chemoenzymatic aminolysis–Sonogashira coupling sequence. Org Biomol Chem 2015; 13:1571-6. [DOI: 10.1039/c4ob02386b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(Hetero)arylated propargyl amides are efficiently prepared by consecutive chemoenzymatic three-component synthesis based upon lipase catalyzed aminolysis followed by Sonogashira coupling.
Collapse
Affiliation(s)
- Sidra Hassan
- Lehrstuhl für Organische Chemie
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- Universitätsstraße 1
- Düsseldorf
| | - Anja Ullrich
- Lehrstuhl für Organische Chemie
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- Universitätsstraße 1
- Düsseldorf
| | - Thomas J. J. Müller
- Lehrstuhl für Organische Chemie
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- Universitätsstraße 1
- Düsseldorf
| |
Collapse
|
17
|
Goel R, Luxami V, Paul K. Synthetic approaches and functionalizations of imidazo[1,2-a]pyrimidines: an overview of the decade. RSC Adv 2015. [DOI: 10.1039/c5ra14795f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review gives an overview to the synthesis of the imidazo[1,2-a]pyrimidines on the basis of multicomponent reactions, condensation reactions, intramolecular cyclizations etc. along with its reactivity at 3-position.
Collapse
Affiliation(s)
- Richa Goel
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| | - Vijay Luxami
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| |
Collapse
|
18
|
Lou J, Yang X, Rao Z, Qi W, Li J, Wang H, Li Y, Li J, Wang Z, Hu X, Liu P, Hong X. Design and synthesis of 6-oxo-1,4,5,6-tetrahydropyrimidine-5-carboxylate derivatives as neuraminidase inhibitors. Eur J Med Chem 2014; 83:466-73. [DOI: 10.1016/j.ejmech.2014.06.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 06/04/2014] [Accepted: 06/25/2014] [Indexed: 11/15/2022]
|
19
|
Synthesis of ionic liquids based on alkylimidazolium salts and their coal dissolution and dispersion properties. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.04.039] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
20
|
Tran F, Odell AV, Ward GE, Westwood NJ. A modular approach to triazole-containing chemical inducers of dimerisation for yeast three-hybrid screening. Molecules 2013; 18:11639-57. [PMID: 24064457 PMCID: PMC4031444 DOI: 10.3390/molecules180911639] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 09/05/2013] [Accepted: 09/06/2013] [Indexed: 11/30/2022] Open
Abstract
The yeast three-hybrid (Y3H) approach shows considerable promise for the unbiased identification of novel small molecule-protein interactions. In recent years, it has been successfully used to link a number of bioactive molecules to novel protein binding partners. However despite its potential importance as a protein target identification method, the Y3H technique has not yet been widely adopted, in part due to the challenges associated with the synthesis of the complex chemical inducers of dimerisation (CIDs). The development of a modular approach using potentially “off the shelf” synthetic components was achieved and allowed the synthesis of a family of four triazole-containing CIDs, MTX-Cmpd2.2-2.5. These CIDs were then compared using the Y3H approach with three of them giving a strong positive interaction with a known target of compound 2, TgCDPK1. These results showed that the modular nature of our synthetic strategy may help to overcome the challenges currently encountered with CID synthesis and should contribute to the Y3H approach reaching its full potential as an unbiased target identification strategy.
Collapse
Affiliation(s)
- Fanny Tran
- School of Chemistry and Biomolecular Sciences Research Complex, University of St Andrews and EaStCHEM, North Haugh, St Andrews, Fife, Scotland KY16 9ST, UK
| | - Anahi V. Odell
- Department of Microbiology and Molecular Genetics, 316 Stafford Hall, University of Vermont, 95 Carrigan Drive, Burlington, VT 05405, USA
| | - Gary E. Ward
- Department of Microbiology and Molecular Genetics, 316 Stafford Hall, University of Vermont, 95 Carrigan Drive, Burlington, VT 05405, USA
- Authors to whom correspondence should be addressed; E-Mails: ; ; Tel.: +44-(0)1334-46316 (N.J.W.); +1-802-656-4868 (G.E.W.); Fax: +44-(0)1334-462595 (N.J.W.); +1-802-656-8749 (G.E.W.)
| | - Nicholas J. Westwood
- School of Chemistry and Biomolecular Sciences Research Complex, University of St Andrews and EaStCHEM, North Haugh, St Andrews, Fife, Scotland KY16 9ST, UK
- Authors to whom correspondence should be addressed; E-Mails: ; ; Tel.: +44-(0)1334-46316 (N.J.W.); +1-802-656-4868 (G.E.W.); Fax: +44-(0)1334-462595 (N.J.W.); +1-802-656-8749 (G.E.W.)
| |
Collapse
|
21
|
Romański J, Stefaniak M. Application of “Click” Cycloaddition for Synthesis of New Sulfur-Containing Oligomeric System. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.736106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jarosław Romański
- a Department of Organic and Applied Chemistry , University of Łódź , 91-403 Łódź, Tamka , 12 , Poland
| | - Monika Stefaniak
- a Department of Organic and Applied Chemistry , University of Łódź , 91-403 Łódź, Tamka , 12 , Poland
| |
Collapse
|
22
|
Synthesis of ribo-hexopyranoside- and altrose-based azacrown ethers and their application in an asymmetric Michael addition. Carbohydr Res 2013; 365:61-8. [DOI: 10.1016/j.carres.2012.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 10/26/2012] [Accepted: 10/29/2012] [Indexed: 11/19/2022]
|
23
|
Wang X, Li Y, Deuther-Conrad W, Xie F, Chen X, Cui MC, Zhang XJ, Zhang JM, Steinbach J, Brust P, Liu BL, Jia HM. Synthesis and biological evaluation of ¹⁸F labeled fluoro-oligo-ethoxylated 4-benzylpiperazine derivatives for sigma-1 receptor imaging. Bioorg Med Chem 2013; 21:215-22. [PMID: 23199475 DOI: 10.1016/j.bmc.2012.10.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 10/11/2012] [Accepted: 10/23/2012] [Indexed: 11/20/2022]
Abstract
We report the synthesis and evaluation of a series of fluoro-oligo-ethoxylated 4-benzylpiperazine derivatives as potential σ(1) receptor ligands. In vitro competition binding assays showed that 1-(1,3-benzodioxol-5-ylmethyl)-4-(4-(2-fluoroethoxy)benzyl)piperazine (6) exhibits low nanomolar affinity for σ(1) receptors (K(i)=1.85 ± 1.59 nM) and high subtype selectivity (σ(2) receptor: K(i)=291 ± 111 nM; K(i)σ(2)/K(i)σ(1)=157). [(18)F]6 was prepared in 30-50% isolated radiochemical yield, with radiochemical purity of >99% by HPLC analysis after purification, via nucleophilic (18)F(-) substitution of the corresponding tosylate precursor. The logD(pH 7.4) value of [(18)F]6 was found to be 2.57 ± 0.10, which is within the range expected to give high brain uptake. Biodistribution studies in mice demonstrated relatively high concentration of radiotracers in organs known to contain σ(1) receptors, including the brain, lungs, kidneys, heart, and spleen. Administration of haloperidol 5 min prior to injection of [(18)F]6 significantly reduced the concentration of radiotracers in the above-mentioned organs. The accumulation of radiotracers in the bone was quite low suggesting that [(18)F]6 is relatively stable to in vivo defluorination. The ex vivo autoradiography in rat brain showed high accumulation of radiotracers in the brain areas known to possess high expression of σ(1) receptors. These findings suggest that [(18)F]6 is a suitable radiotracer for imaging σ(1) receptors with PET in vivo.
Collapse
Affiliation(s)
- Xia Wang
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University), Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Cui M, Wang X, Yu P, Zhang J, Li Z, Zhang X, Yang Y, Ono M, Jia H, Saji H, Liu B. Synthesis and Evaluation of Novel 18F Labeled 2-Pyridinylbenzoxazole and 2-Pyridinylbenzothiazole Derivatives as Ligands for Positron Emission Tomography (PET) Imaging of β-Amyloid Plaques. J Med Chem 2012; 55:9283-96. [DOI: 10.1021/jm300973k] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mengchao Cui
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Xuedan Wang
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Pingrong Yu
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Jinming Zhang
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
- Department of Nuclear Medicine, Chinese PLA General Hospital, Beijing 100853, P. R.
China
| | - Zijing Li
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Xiaojun Zhang
- Department of Nuclear Medicine, Chinese PLA General Hospital, Beijing 100853, P. R.
China
| | - Yanping Yang
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Masahiro Ono
- Department of Patho-Functional
Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku,
Kyoto 606-8501, Japan
| | - Hongmei Jia
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Hideo Saji
- Department of Patho-Functional
Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku,
Kyoto 606-8501, Japan
| | - Boli Liu
- Key Laboratory
of Radiopharmaceuticals,
Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| |
Collapse
|
25
|
André S, Cañada FJ, Shiao TC, Largartera L, Diercks T, Bergeron-Brlek M, el Biari K, Papadopoulos A, Ribeiro JP, Touaibia M, Solís D, Menéndez M, Jiménez-Barbero J, Roy R, Gabius HJ. Fluorinated Carbohydrates as Lectin Ligands: Biorelevant Sensors with Capacity to Monitor Anomer Affinity in 19F-NMR-Based Inhibitor Screening. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200397] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
26
|
Allampally NK, Strassert CA, De Cola L. Luminescent gels by self-assembling platinum complexes. Dalton Trans 2012; 41:13132-7. [DOI: 10.1039/c2dt30369h] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
27
|
Koopmans T, Dekker FJ, Martin NI. A photocleavable affinity tag for the enrichment of alkyne-modified biomolecules. RSC Adv 2012. [DOI: 10.1039/c2ra20082a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
28
|
Quinn TP, Atwood PD, Tanski JM, Moore TF, Folmer-Andersen JF. Aza-Crown Macrocycles as Chiral Solvating Agents for Mandelic Acid Derivatives. J Org Chem 2011; 76:10020-30. [DOI: 10.1021/jo2018203] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas P. Quinn
- Department of Chemistry, The State University of New York at New Paltz, 1 Hawk
Drive, New Paltz, New York 12561, United States
| | - Philip D. Atwood
- Department of Chemistry, The State University of New York at New Paltz, 1 Hawk
Drive, New Paltz, New York 12561, United States
| | - Joseph M. Tanski
- Department of Chemistry, Vassar College, 124 Raymond Avenue, Box 601, Poughkeepsie,
New York 12604, United States
| | - Tyler F. Moore
- Department of Chemistry, The State University of New York at New Paltz, 1 Hawk
Drive, New Paltz, New York 12561, United States
| | - J. Frantz Folmer-Andersen
- Department of Chemistry, The State University of New York at New Paltz, 1 Hawk
Drive, New Paltz, New York 12561, United States
| |
Collapse
|
29
|
Valant C, Robert Lane J, Sexton PM, Christopoulos A. The best of both worlds? Bitopic orthosteric/allosteric ligands of g protein-coupled receptors. Annu Rev Pharmacol Toxicol 2011; 52:153-78. [PMID: 21910627 DOI: 10.1146/annurev-pharmtox-010611-134514] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
It is now acknowledged that G protein-coupled receptors, the largest class of drug targets, adopt multiple active states that can be preferentially stabilized by orthosteric ligands or allosteric modulators, thus giving rise to the phenomenon of pathway-biased signaling. In the past few years, researchers have begun to explore the potential of linking orthosteric and allosteric pharmacophores to yield bitopic hybrid ligands. This approach is an extension of the more traditional bivalent ligand concept and shares some of the same challenges, including the choice and role of the linker between the two pharmacophores and the validation of mechanism of action. Nonetheless, the promise of bitopic ligands is the generation of novel chemical tools that have improved affinity and/or selectivity profiles. Previously identified functionally selective compounds (and medicines) also may act via a bitopic mechanism, suggesting that the phenomenon is more widespread than currently appreciated.
Collapse
Affiliation(s)
- Celine Valant
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, and Department of Pharmacology, Monash University, Parkville, Victoria 3052, Australia.
| | | | | | | |
Collapse
|
30
|
Kühhorn J, Hübner H, Gmeiner P. Bivalent dopamine D2 receptor ligands: synthesis and binding properties. J Med Chem 2011; 54:4896-903. [PMID: 21599022 DOI: 10.1021/jm2004859] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Dopamine D(2) receptor homodimers might be of particular importance in the pathophysiology of schizophrenia and, thus, serve as promising target proteins for the discovery of atypical antipsychotics. A highly attractive approach to investigate and control GPCR dimerization may be provided by the exploration and characterization of bivalent ligands, which can act as molecular probes simultaneously binding two adjacent binding sites of a dimer. The synthesis of bivalent dopamine D(2) receptor ligands of type 1 is presented, incorporating the privileged structure of 1,4-disubstituted aromatic piperidines/piperazines (1,4-DAPs) and triazolyl-linked spacer elements. Radioligand binding studies provided diagnostic insights when Hill slopes close to two for bivalent ligands with particular spacer lengths and a comparative analysis with respective monovalent control ligands and unsymmetrically substituted analogues indicated a bivalent binding mode with a simultaneous occupancy of two neighboring binding sites.
Collapse
Affiliation(s)
- Julia Kühhorn
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich-Alexander University, Erlangen, Germany
| | | | | |
Collapse
|
31
|
Shonberg J, Scammells PJ, Capuano B. Design strategies for bivalent ligands targeting GPCRs. ChemMedChem 2011; 6:963-74. [PMID: 21520422 DOI: 10.1002/cmdc.201100101] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Indexed: 01/20/2023]
Abstract
Specifically designed bivalent ligands targeting G protein-coupled receptor (GPCR) dimeric structures have become increasingly popular in recent literature. The advantages of the bivalent approach are numerous, including enhanced potency and receptor subtype specificity. However, the use of bivalent ligands as potential pharmacotherapeutics is limited by problematic molecular properties, such as high molecular weight and lipophilicity. This minireview focuses on the design of bivalent ligands recently described in the literature; discussing the choice of lead pharmacophore, the position and nature of the attachment point for linking the two pharmacophore units, and the length and composition of the spacer group. Furthermore, this minireview distils the molecular descriptors of the bivalent ligands that exhibit in vivo activity, as well as highlights their ability to access the central nervous system.
Collapse
Affiliation(s)
- Jeremy Shonberg
- Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, 381 Royal Pde, Parkville, Victoria 3052, Australia
| | | | | |
Collapse
|
32
|
Zhang Y, Gilliam A, Maitra R, Damaj MI, Tajuba JM, Seltzman HH, Thomas BF. Synthesis and biological evaluation of bivalent ligands for the cannabinoid 1 receptor. J Med Chem 2010; 53:7048-60. [PMID: 20845959 DOI: 10.1021/jm1006676] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Dimerization or oligomerization of many G-protein-coupled receptors (GPCRs), including the cannabinoid 1 (CB1) receptor, is now widely accepted and may have significant implications for medications development targeting these receptor complexes. A library of bivalent ligands composed of two identical CB1 antagonist pharmacophores derived from SR141716 linked by spacers of various lengths were developed. The affinities of these bivalent ligands at CB1 and CB2 receptors were determined using radiolabeled binding assays. Their functional activities were measured using GTP-γ-S accumulation and intracellular calcium mobilization assays. The results suggest that the nature of the linker and its length are crucial factors for optimum interactions of these ligands at CB1 receptor binding sites. Finally, selected bivalent ligands (5d and 7b) were able to attenuate the antinociceptive effects of the cannabinoid agonist CP55,940 (21) in a rodent tail-flick assay. These novel compounds may serve as probes that will enable further characterization of CB1 receptor dimerization and oligomerization and its functional significance and may prove useful in the development of new therapeutic approaches to G-protein-coupled receptor mediated disorders.
Collapse
Affiliation(s)
- Yanan Zhang
- Research Triangle Institute, Research Triangle Park, North Carolina 27709, USA.
| | | | | | | | | | | | | |
Collapse
|
33
|
Jiao L, Meng T, Chen Y, Zhang M, Wang X, Hao E. Triazolyl-linked 8-Hydroxyquinoline Dimer as a Selective Turn-on Fluorosensor for Cd2+. CHEM LETT 2010. [DOI: 10.1246/cl.2010.803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
34
|
Xiao J, Tolbert TJ. Synthesis of N-terminally linked protein dimers and trimers by a combined native chemical ligation-CuAAC click chemistry strategy. Org Lett 2010; 11:4144-7. [PMID: 19705863 DOI: 10.1021/ol9016468] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel method for the synthesis of N-terminally linked protein multimers is reported. Azide and alkyne thioesters were synthesized for the N-terminal modification of expressed proteins using native chemical ligation (NCL). Proteins modified by these moieties can be joined together to form homodimers and homotrimers via Cu(I)-catalyzed azide-alkyne [3 + 2] cycloaddition (CuAAC) click chemistry. The orthogonal nature of this reaction allows the production of protein heteromultimers, and this is demonstrated by synthesis of a protein heterodimer.
Collapse
Affiliation(s)
- Junpeng Xiao
- Interdisciplinary Biochemistry Graduate Program and Department of Chemistry, Indiana University, Bloomington, Indiana 47405, USA
| | | |
Collapse
|
35
|
Keller M, Teng S, Bernhardt G, Buschauer A. Bivalent argininamide-type neuropeptide y y(1) antagonists do not support the hypothesis of receptor dimerisation. ChemMedChem 2009; 4:1733-45. [PMID: 19672917 DOI: 10.1002/cmdc.200900213] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Bivalent ligands are potential tools to investigate the dimerisation of G-protein-coupled receptors. Based on the (R)-argininamide BIBP 3226, a potent and selective neuropeptide Y Y(1) receptor (Y(1)R) antagonist, we prepared a series of bivalent Y(1)R ligands with a wide range of linker lengths (8-36 atoms). Exploiting the high eudismic ratio (>1000) of the parent compound, we synthesised sets of R,R-, R,S- and S,S-configured bivalent ligands to gain insight into the "bridging" of two Y(1)Rs by simultaneous interaction with both binding sites of a putative receptor dimer. Except for the S,S isomers, the bivalent ligands are high-affinity Y(1)R antagonists, as determined by Ca(2+) assays on HEL cells and radioligand competition assays on human Y(1)R-expressing SK-N-MC and MCF-7 cells. Whereas the R,R enantiomers are most potent, no marked differences were observed relative to the corresponding meso forms. The difference between R,R and R,S diastereomers was most pronounced (about sixfold) in the case of the Y(1)R antagonist containing a spacer of 20 atoms in length. Among the R,R enantiomers, linker length and structural diversity had little effect on Y(1)R affinity. Although the bivalent ligands preferentially bind to the Y(1)R, the selectivity toward human Y(2), Y(4), and Y(5) receptors was markedly lower than that of the monovalent argininamides. The results of this study neither support the presence of Y(1)R dimers nor the simultaneous occupation of both binding pockets by the twin compounds. However, as the interaction with Y(1)R dimers cannot be unequivocally ruled out, the preparation of a bivalent radioligand is suggested to determine the ligand-receptor stoichiometry. Aiming at such radiolabelled pharmacological tools, prototype twin compounds were synthesised, containing an N-propionylated amino-functionalised branched linker (K(i)> or =18 nM), a tritiated form of which can be easily prepared.
Collapse
Affiliation(s)
- Max Keller
- Lehrstuhl für Pharmazeutische/Medizinische Chemie II, Institut für Pharmazie, Universität Regensburg, Universitätsstr. 31, 93040 Regensburg (Germany)
| | | | | | | |
Collapse
|
36
|
Bonger K, Hoogendoorn S, van Koppen C, Timmers C, Overkleeft H, van der Marel G. Synthesis and Pharmacological Evaluation of Dimeric Follicle-Stimulating Hormone Receptor Antagonists. ChemMedChem 2009; 4:2098-102. [DOI: 10.1002/cmdc.200900344] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
37
|
Wen WH, Lin M, Su CY, Wang SY, Cheng YSE, Fang JM, Wong CH. Synergistic effect of zanamivir-porphyrin conjugates on inhibition of neuraminidase and inactivation of influenza virus. J Med Chem 2009; 52:4903-10. [PMID: 19522501 DOI: 10.1021/jm900515g] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
New anti-influenza agents of tetravalent zanamivir on a porphyrin scaffold were synthesized. These compounds are 10 to 100 times more potent in inhibiting influenza replications even though they are somewhat less potent in neuraminidase inhibition than the monomeric zanamivir. The enhanced anti-influenza activity is probably attributable to the additional viral inactivation by singlet oxygen due to sensitization of the porphyrin moiety, which is brought in close proximity of virus by the conjugated zanamivir in a manner resembling the "magic bullet" mechanism.
Collapse
Affiliation(s)
- Wen-Hsien Wen
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | | | | | | | | | | | | |
Collapse
|
38
|
Salorinne K, Tero TR, Riikonen K, Nissinen M. Synthesis and structure of mono-bridged resorcinarene host: a ditopic receptor for ammonium guests. Org Biomol Chem 2009; 7:4211-7. [PMID: 19795059 DOI: 10.1039/b911389d] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and structural properties of tetramethoxy resorcinarene mono-crown-5 (1) are described. The binding characteristics of 1 toward acetylcholine and tetramethylammonium salts were investigated by 1H NMR titration. It was observed that the cavity of 1 provides a better fit to acetylcholine compared to the smaller tetramethylammonium cation, as acetylcholine is able to interact with both the crown ether moiety and the free hydroxyl groups of receptor 1 simultaneously.
Collapse
Affiliation(s)
- Kirsi Salorinne
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 JYU, Finland
| | | | | | | |
Collapse
|
39
|
Bonger K, van den Berg RJ, Knijnenburg A, Heitman L, van Koppen C, Timmers C, Overkleeft H, van der Marel G. Discovery of Selective Luteinizing Hormone Receptor Agonists Using the Bivalent Ligand Method. ChemMedChem 2009; 4:1189-95. [DOI: 10.1002/cmdc.200900058] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
40
|
Cation template assisted oligoethylene glycol desymmetrization by intramolecular Cannizzaro reaction of topologically remote aldehydes. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|