1
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Watt JM, Graeff R, Potter BVL. Small Molecule CD38 Inhibitors: Synthesis of 8-Amino- N1-inosine 5'-monophosphate, Analogues and Early Structure-Activity Relationship. Molecules 2021; 26:molecules26237165. [PMID: 34885748 PMCID: PMC8658804 DOI: 10.3390/molecules26237165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/23/2022] Open
Abstract
Although a monoclonal antibody targeting the multifunctional ectoenzyme CD38 is an FDA-approved drug, few small molecule inhibitors exist for this enzyme that catalyzes inter alia the formation and metabolism of the N1-ribosylated, Ca2+-mobilizing, second messenger cyclic adenosine 5′-diphosphoribose (cADPR). N1-Inosine 5′-monophosphate (N1-IMP) is a fragment directly related to cADPR. 8-Substituted-N1-IMP derivatives, prepared by degradation of cyclic parent compounds, inhibit CD38-mediated cADPR hydrolysis more efficiently than related cyclic analogues, making them attractive for inhibitor development. We report a total synthesis of the N1-IMP scaffold from adenine and a small initial compound series that facilitated early delineation of structure-activity parameters, with analogues evaluated for inhibition of CD38-mediated hydrolysis of cADPR. The 5′-phosphate group proved essential for useful activity, but substitution of this group by a sulfonamide bioisostere was not fruitful. 8-NH2-N1-IMP is the most potent inhibitor (IC50 = 7.6 μM) and importantly HPLC studies showed this ligand to be cleaved at high CD38 concentrations, confirming its access to the CD38 catalytic machinery and demonstrating the potential of our fragment approach.
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Affiliation(s)
- Joanna M. Watt
- Medicinal Chemistry & Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK;
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Richard Graeff
- Department of Physiology, University of Hong Kong, Hong Kong, China;
| | - Barry V. L. Potter
- Medicinal Chemistry & Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK;
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, UK
- Correspondence: ; Tel.: +44-1865-271945
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2
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D'Errico S, Greco F, Patrizia Falanga A, Tedeschi V, Piccialli I, Marzano M, Terracciano M, Secondo A, Roviello GN, Oliviero G, Borbone N. Probing the Ca 2+ mobilizing properties on primary cortical neurons of a new stable cADPR mimic. Bioorg Chem 2021; 117:105401. [PMID: 34662754 DOI: 10.1016/j.bioorg.2021.105401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/08/2021] [Accepted: 09/11/2021] [Indexed: 01/06/2023]
Abstract
Cyclic adenosine diphosphate ribose (cADPR) is a second messenger involved in the Ca2+ homeostasis. Its chemical instability prompted researchers to tune point by point its structure, obtaining stable analogues featuring interesting biological properties. One of the most challenging derivatives is the cyclic inosine diphosphate ribose (cIDPR), in which the hypoxanthine isosterically replaces the adenine. As our research focuses on the synthesis of N1 substituted inosines, in the last few years we have produced new flexible cIDPR analogues, where the northern ribose has been replaced by alkyl chains. Interestingly, some of them mobilized Ca2+ ions in PC12 cells. To extend our SAR studies, herein we report on the synthesis of a new stable cIDPR derivative which contains the 2″S,3″R dihydroxypentyl chain instead of the northern ribose. Interestingly, the new cyclic derivative and its open precursor induced an increase in intracellular calcium concentration ([Ca2+]i) with the same efficacy of the endogenous cADPR in rat primary cortical neurons.
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Affiliation(s)
- Stefano D'Errico
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Francesca Greco
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Andrea Patrizia Falanga
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Valentina Tedeschi
- Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Divisione di Farmacologia, Università degli Studi di Napoli Federico II, Via Sergio Pansini, 5-80131 Napoli, Italy
| | - Ilaria Piccialli
- Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Divisione di Farmacologia, Università degli Studi di Napoli Federico II, Via Sergio Pansini, 5-80131 Napoli, Italy
| | - Maria Marzano
- Istituto di Cristallografia (IC) CNR, Via Amendola 122/O-70126, Bari, Italy
| | - Monica Terracciano
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Agnese Secondo
- Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Divisione di Farmacologia, Università degli Studi di Napoli Federico II, Via Sergio Pansini, 5-80131 Napoli, Italy
| | | | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, via Sergio Pansini, 5-80131 Napoli, Italy.
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
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3
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Yu P, Cai X, Liang Y, Wang M, Yang W. Roles of NAD + and Its Metabolites Regulated Calcium Channels in Cancer. Molecules 2020; 25:molecules25204826. [PMID: 33092205 PMCID: PMC7587972 DOI: 10.3390/molecules25204826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/11/2020] [Accepted: 10/16/2020] [Indexed: 02/08/2023] Open
Abstract
Nicotinamide adenine dinucleotide (NAD+) is an essential cofactor for redox enzymes, but also moonlights as a regulator for ion channels, the same as its metabolites. Ca2+ homeostasis is dysregulated in cancer cells and affects processes such as tumorigenesis, angiogenesis, autophagy, progression, and metastasis. Herein, we summarize the regulation of the most common calcium channels (TRPM2, TPCs, RyRs, and TRPML1) by NAD+ and its metabolites, with a particular focus on their roles in cancers. Although the mechanisms of NAD+ metabolites in these pathological processes are yet to be clearly elucidated, these ion channels are emerging as potential candidates of alternative targets for anticancer therapy.
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Affiliation(s)
- Peilin Yu
- Department of Toxicology, and Department of Medical Oncology of Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China; (P.Y.); (Y.L.)
| | - Xiaobo Cai
- Department of Biophysics, and Department of Neurosurgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China;
| | - Yan Liang
- Department of Toxicology, and Department of Medical Oncology of Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China; (P.Y.); (Y.L.)
| | - Mingxiang Wang
- BrioPryme Biologics, Inc., Hangzhou 310058, Zhejiang, China;
| | - Wei Yang
- Department of Biophysics, and Department of Neurosurgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China;
- Correspondence: ; Tel.: +86-571-8820-8713
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4
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Baszczyňski O, Watt JM, Rozewitz MD, Fliegert R, Guse AH, Potter BVL. Synthesis of phosphonoacetate analogues of the second messenger adenosine 5'-diphosphate ribose (ADPR). RSC Adv 2020; 10:1776-1785. [PMID: 31934327 PMCID: PMC6957348 DOI: 10.1039/c9ra09284f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Adenosine 5′-diphosphate ribose (ADPR) is an intracellular signalling molecule generated from nicotinamide adenine dinucleotide (NAD+). Synthetic ADPR analogues can shed light on the mechanism of activation of ADPR targets and their downstream effects. Such chemical biology studies, however, are often challenging due to the negatively charged pyrophosphate that is also sensitive to cellular pyrophosphatases. Prior work on an initial ADPR target, the transient receptor potential cation channel TRPM2, showed complete pyrophosphate group replacement to be a step too far in maintaining biological activity. Thus, we designed ADPR analogues with just one of the negatively charged phosphate groups removed, by employing a phosphonoacetate linker. Synthesis of two novel phosphonoacetate ADPR analogues is described via tandem N,N′-dicyclohexylcarbodiimide coupling to phosphonoacetic acid. Neither analogue, however, showed significant agonist or antagonist activity towards TRPM2, underlining the importance of a complete pyrophosphate motif in activation of this particular receptor. Pyrophosphate replacement using phosphonoacetate isosteres – tools to study biological targets of ADPR.![]()
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Affiliation(s)
- Ondřej Baszczyňski
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Bath, BA2 7AY, UK
| | - Joanna M Watt
- Medicinal Chemistry, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.,Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Bath, BA2 7AY, UK
| | - Monika D Rozewitz
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Ralf Fliegert
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Andreas H Guse
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Barry V L Potter
- Medicinal Chemistry, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.,Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Bath, BA2 7AY, UK
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5
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Artyushin OI, Moiseeva AA, Zarubaev VV, Slita AV, Galochkina AV, Muryleva AA, Borisevich SS, Yarovaya OI, Salakhutdinov NF, Brel VK. Synthesis of Camphecene and Cytisine Conjugates Using Click Chemistry Methodology and Study of Their Antiviral Activity. Chem Biodivers 2019; 16:e1900340. [PMID: 31647170 DOI: 10.1002/cbdv.201900340] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 09/10/2019] [Indexed: 12/12/2022]
Abstract
A series of camphecene and quinolizidine alkaloid (-)-cytisine conjugates has been obtained for the first time using 'click' chemistry methodology. The cytotoxicity and virus-inhibiting activity of compounds were determined against MDCK cells and influenza virus A/Puerto Rico/8/34 (H1N1), correspondingly, in in vitro tests. Based on the results obtained, values of 50 % cytotoxic dose (CC50 ), 50 % inhibition dose (IC50 ) and selectivity index (SI) were determined for each compound. It has been shown that the antiviral activity is affected by the length and nature of linkers between cytisine and camphor units. Conjugate 13 ((1R,5S)-3-(6-{4-[(2-{(E)-[(1R,4R)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ylidene]amino}ethoxy)methyl]-1H-1,2,3-triazol-1-yl}hexyl)-1,2,3,4,5,6-hexahydro-8H-1,5-methanopyrido[1,2-a][1,5]diazocin-8-one), which contains cytisine fragment separated from triazole ring by -C6 H12 - aliphatic linker, showed the highest activity at relatively low toxicity (CC50 =168 μmol, IC50 =8 μmol, SI=20). Its selectivity index appeared higher than that of reference compound, rimantadine. According to theoretical calculations, the antiviral activity of the lead compound 13 can be explained by its influence on the functioning of neuraminidase.
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Affiliation(s)
- Oleg I Artyushin
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova Str., Moscow, 119991, Russia
| | - Aleksandra A Moiseeva
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova Str., Moscow, 119991, Russia
| | - Vladimir V Zarubaev
- Paster Research Institute of Epidemiology and Microbiology, 14 Mira Str., St. Petersburg, 197101, Russia
| | - Aleksander V Slita
- Paster Research Institute of Epidemiology and Microbiology, 14 Mira Str., St. Petersburg, 197101, Russia
| | - Anastasiya V Galochkina
- Paster Research Institute of Epidemiology and Microbiology, 14 Mira Str., St. Petersburg, 197101, Russia
| | - Anna A Muryleva
- Paster Research Institute of Epidemiology and Microbiology, 14 Mira Str., St. Petersburg, 197101, Russia
| | | | - Olga I Yarovaya
- Department of Medicinal Chemistry, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch Russian Academy of Sciences, 9 Lavrent'ev ave., Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Nariman F Salakhutdinov
- Department of Medicinal Chemistry, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch Russian Academy of Sciences, 9 Lavrent'ev ave., Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Valery K Brel
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova Str., Moscow, 119991, Russia
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6
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D'Errico S, Basso E, Falanga AP, Marzano M, Pozzan T, Piccialli V, Piccialli G, Oliviero G, Borbone N. New Linear Precursors of cIDPR Derivatives as Stable Analogs of cADPR: A Potent Second Messenger with Ca 2+-Modulating Activity Isolated from Sea Urchin Eggs. Mar Drugs 2019; 17:E476. [PMID: 31426471 PMCID: PMC6723567 DOI: 10.3390/md17080476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/09/2019] [Accepted: 08/15/2019] [Indexed: 12/15/2022] Open
Abstract
Herein, we report on the synthesis of a small set of linear precursors of an inosine analogue of cyclic ADP-ribose (cADPR), a second messenger involved in Ca2+ mobilization from ryanodine receptor stores firstly isolated from sea urchin eggs extracts. The synthesized compounds were obtained starting from inosine and are characterized by an N1-alkyl chain replacing the "northern" ribose and a phosphate group attached at the end of the N1-alkyl chain and/or 5'-sugar positions. Preliminary Ca2+ mobilization assays, performed on differentiated C2C12 cells, are reported as well.
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Affiliation(s)
- Stefano D'Errico
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, Napoli 80131, Italy
- ISBE Italy/SYSBIO Centro di System Biology, Università di Milano-Bicocca, piazza delle Scienze 2, Milano 20126, Italy
| | - Emy Basso
- Consiglio Nazionale delle Ricerche, Dipartimento di Scienze Biomediche, Istituto di Neuroscienze (Sezione di Padova), viale Giuseppe Colombo 3, Padova 35131, Italy
- Dipartimento di Scienze Biomediche, Università degli Studi di Padova, via Ugo Bassi 58/b, Padova 35131, Italy
| | - Andrea Patrizia Falanga
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, via Sergio Pansini 5, Napoli 80131, Italy
| | - Maria Marzano
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, Napoli 80131, Italy
| | - Tullio Pozzan
- Consiglio Nazionale delle Ricerche, Dipartimento di Scienze Biomediche, Istituto di Neuroscienze (Sezione di Padova), viale Giuseppe Colombo 3, Padova 35131, Italy
- Dipartimento di Scienze Biomediche, Università degli Studi di Padova, via Ugo Bassi 58/b, Padova 35131, Italy
- Istituto Veneto di Medicina Molecolare, via Orus 2, Padova 35129, Italy
| | - Vincenzo Piccialli
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, via Cintia, 26, Napoli 80126, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, Napoli 80131, Italy
- ISBE Italy/SYSBIO Centro di System Biology, Università di Milano-Bicocca, piazza delle Scienze 2, Milano 20126, Italy
| | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, via Sergio Pansini 5, Napoli 80131, Italy.
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, Napoli 80131, Italy
- ISBE Italy/SYSBIO Centro di System Biology, Università di Milano-Bicocca, piazza delle Scienze 2, Milano 20126, Italy
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7
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Gasperi V, Sibilano M, Savini I, Catani MV. Niacin in the Central Nervous System: An Update of Biological Aspects and Clinical Applications. Int J Mol Sci 2019; 20:ijms20040974. [PMID: 30813414 PMCID: PMC6412771 DOI: 10.3390/ijms20040974] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 12/12/2022] Open
Abstract
Niacin (also known as "vitamin B₃" or "vitamin PP") includes two vitamers (nicotinic acid and nicotinamide) giving rise to the coenzymatic forms nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP). The two coenzymes are required for oxidative reactions crucial for energy production, but they are also substrates for enzymes involved in non-redox signaling pathways, thus regulating biological functions, including gene expression, cell cycle progression, DNA repair and cell death. In the central nervous system, vitamin B₃ has long been recognized as a key mediator of neuronal development and survival. Here, we will overview available literature data on the neuroprotective role of niacin and its derivatives, especially focusing especially on its involvement in neurodegenerative diseases (Alzheimer's, Parkinson's, and Huntington's diseases), as well as in other neuropathological conditions (ischemic and traumatic injuries, headache and psychiatric disorders).
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Affiliation(s)
- Valeria Gasperi
- Department of Experimental Medicine, Tor Vergata University of Rome, Via Montpellier 1, 00133 Rome, Italy.
| | - Matteo Sibilano
- Department of Experimental Medicine, Tor Vergata University of Rome, Via Montpellier 1, 00133 Rome, Italy.
| | - Isabella Savini
- Department of Experimental Medicine, Tor Vergata University of Rome, Via Montpellier 1, 00133 Rome, Italy.
| | - Maria Valeria Catani
- Department of Experimental Medicine, Tor Vergata University of Rome, Via Montpellier 1, 00133 Rome, Italy.
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8
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Shuto S. Cyclic ADP-Carbocyclic-Ribose and -4-Thioribose, as Stable Mimics of Cyclic ADP-Ribose, a Ca 2+-Mobilizing Second Messenger. Chem Pharm Bull (Tokyo) 2018; 66:155-161. [PMID: 29386466 DOI: 10.1248/cpb.c17-00668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cyclic ADP-ribose (cADPR), a general mediator involved in Ca2+ signaling, has the characteristic 18-membered ring consisting of an adenine, two riboses and a pyrophosphate, in which the two primary hydroxy groups of the riboses are linked by a pyrophosphate unit. This review focuses on chemical synthetic studies of cADPR analogues of biological importance. Although cADPR analogues can be synthesized by enzymatic and chemo-enzymatic methods using ADP-ribosyl cyclase, the analogues obtained by these methods are limited due to the substrate-specificity of the enzymes. Consequently, chemical synthetic methods providing a greater variety of cADPR analogues are required. Although early chemical synthetic studies demonstrated that construction of the large 18-membered ring structure is difficult, the construction was achieved using the phenylthiophosphate-type substrates by treating with AgNO3 or I2. This is now a general method for synthesizing these types of biologically important cyclic nucleotides. Using this method as the key step, the chemically and biologically stable cADPR mimic, cADP-carbocyclic-ribose (cADPcR) and -4-thioribose (cADPtR), were synthesized.
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Affiliation(s)
- Satoshi Shuto
- Faculty of Pharmaceutical Sciences, Hokkaido University
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9
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Liu J, Leonard P, Müller SL, Daniliuc C, Seela F. Nucleoside macrocycles formed by intramolecular click reaction: efficient cyclization of pyrimidine nucleosides decorated with 5'-azido residues and 5-octadiynyl side chains. Beilstein J Org Chem 2018; 14:2404-2410. [PMID: 30254706 PMCID: PMC6142766 DOI: 10.3762/bjoc.14.217] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 08/22/2018] [Indexed: 02/05/2023] Open
Abstract
Copper(I)-promoted "click" cyclization in the presence of TBTA afforded nucleoside macrocycles in very high yields (≈70%) without using protecting groups. To this end, dU and dC derivatives functionalized at the 5-position of the nucleobase with octadiynyl side chains and with azido groups at the 5'-position of the sugar moieties were synthesized. The macrocycles display freely accessible Watson-Crick recognition sites. The conformation of the 16-membered macrocycle was deduced from X-ray analysis and 1H,1H-NMR coupling constants. The sugar conformation (N vs S) was different in solution as compared to the solid state.
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Affiliation(s)
- Jiang Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral Medicine of West China Hospital of Stomatology, Sichuan University, 610041 Chengdu, Sichuan, P. R. China.,Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany.,Laboratorium für Organische und Bioorganische Chemie, Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastrasse 7, 49069 Osnabrück, Germany
| | - Peter Leonard
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Sebastian L Müller
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Constantin Daniliuc
- Institut für Organische Chemie, Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Seela
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany.,Laboratorium für Organische und Bioorganische Chemie, Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastrasse 7, 49069 Osnabrück, Germany
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10
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Wang X, Zhang X, Zhang K, Hu J, Liu Z, Jin H, Zhang L, Zhang L. Calcium-Mobilizing Behaviors of Neutral Cyclic ADP-Ribose Mimics that Integrate Modifications to the Nucleobase, Northern Ribose and Pyrophosphate. Chembiochem 2018; 19:1444-1451. [PMID: 29633462 DOI: 10.1002/cbic.201800133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 11/11/2022]
Abstract
Cyclic adenosine diphosphate ribose (cADPR) is an endogenous Ca2+ mobilizer involved in diverse cellular processes. Mimics of cADPR play a crucial role in investigating the molecular mechanism(s) of cADPR-mediated signaling. Here, compound 3, a mimic of cADPR in which a neutral triazole moiety and an ether linkage were introduced to substitute the pyrophosphate and "northern" ribose components, respectively, was synthesized for the first time. The pharmacological activities in Jurkat cells indicated that this mimic is capable of penetrating plasma membrane and inciting Ca2+ release from the endoplasmic reticulum (ER) through the action of ryanodine receptors (RyRs) and triggering Ca2+ influx. Furthermore, a uridine moiety was introduced in place of adenine and the new cADPR mimics 4 and 5 were synthesized. The results of biological investigation showed that these mimics also targeted RyRs and retained moderate Ca2+ agonistic activities. The results indicated that the neutral cADPR mimics had the same targets for inducing Ca2+ signaling.
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Affiliation(s)
- Xuan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xiaoyan Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Kehui Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Jianxing Hu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Zhenming Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Hongwei Jin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Lihe Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
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11
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Luo X, Li M, Zhan K, Yang W, Zhang L, Wang K, Yu P, Zhang L. Selective inhibition of TRPM2 channel by two novel synthesized ADPR analogues. Chem Biol Drug Des 2018; 91:552-566. [PMID: 29034580 PMCID: PMC5813235 DOI: 10.1111/cbdd.13119] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 07/04/2017] [Accepted: 08/21/2017] [Indexed: 01/02/2023]
Abstract
Transient receptor potential melastatin-2 (TRPM2) channel critical for monitoring internal body temperature is implicated in the pathological processes such as neurodegeneration. However, lacking selective and potent TRPM2 inhibitors impedes investigation and validation of the channel as a drug target. To discover novel and selective TRPM2 inhibitors, a series of adenosine 5'-diphosphoribose analogues were synthesized, and their activities and selectivity were evaluated. Whole-cell patch-clamp recordings were employed for screen and evaluation of synthesized compounds. Two compounds, 7i and 8a, were identified as TRPM2 inhibitors with IC50 of 5.7 and 5.4 μm, respectively. Both 7i and 8a inhibited TRPM2 current without affecting TRPM7, TRPM8, TRPV1 and TRPV3. These two TRPM2 inhibitors can serve as new pharmacological tools for further investigation and validation of TRPM2 channel as a drug target, and the summarized structure-activity relationship (SAR) may also provide insights into further improving existing inhibitors as potential lead compounds.
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Affiliation(s)
- Xiao Luo
- State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijingChina
| | - Meng Li
- Department of NeurobiologyNeuroscience Research InstitutePeking University Health Science CenterPeking University School of Pharmaceutical SciencesBeijingChina
| | - Kaiyu Zhan
- Department of NeurobiologyZhejiang University School of MedicineHangzhouZhejiangChina
| | - Wei Yang
- Department of NeurobiologyZhejiang University School of MedicineHangzhouZhejiangChina
| | - Lihe Zhang
- State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijingChina
| | - KeWei Wang
- Department of NeurobiologyNeuroscience Research InstitutePeking University Health Science CenterPeking University School of Pharmaceutical SciencesBeijingChina
- Department of PharmacologySchool of PharmacyQingdao UniversityQingdaoChina
| | - Peilin Yu
- Department of ToxicologySchool of Public HealthZhejiang UniversityHangzhouZhejiangChina
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijingChina
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12
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Chaciak B, Dąbrowa K, Świder P, Jarosz S. Macrocyclic derivatives with a sucrose scaffold: insertion of a long polyhydroxylated linker between the terminal 6,6′-positions. NEW J CHEM 2018. [DOI: 10.1039/c8nj02808g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A series of five new macrocyclic hybrids with a sucrose scaffold were prepared by the reaction of activated 1′,2,3,3′,4,4′-hexa-O-methylsucrose with diversely functionalized d-mannitols.
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Affiliation(s)
- Bartosz Chaciak
- Institute of Organic Chemistry
- Polish Academy of Sciences
- ul. Kasprzaka 44/52 01-224 Warsaw
- Poland
| | - Kajetan Dąbrowa
- Institute of Organic Chemistry
- Polish Academy of Sciences
- ul. Kasprzaka 44/52 01-224 Warsaw
- Poland
| | - Paweł Świder
- Institute of Organic Chemistry
- Polish Academy of Sciences
- ul. Kasprzaka 44/52 01-224 Warsaw
- Poland
| | - Sławomir Jarosz
- Institute of Organic Chemistry
- Polish Academy of Sciences
- ul. Kasprzaka 44/52 01-224 Warsaw
- Poland
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13
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Second messenger analogues highlight unexpected substrate sensitivity of CD38: total synthesis of the hybrid "L-cyclic inosine 5'-diphosphate ribose". Sci Rep 2017; 7:16100. [PMID: 29170518 PMCID: PMC5700923 DOI: 10.1038/s41598-017-16388-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 11/13/2017] [Indexed: 02/07/2023] Open
Abstract
The multifunctional, transmembrane glycoprotein human CD38 catalyses the synthesis of three key Ca2+-mobilising messengers, including cyclic adenosine 5′-diphosphate ribose (cADPR), and CD38 knockout studies have revealed the relevance of the related signalling pathways to disease. To generate inhibitors of CD38 by total synthesis, analogues based on the cyclic inosine 5′-diphosphate ribose (cIDPR) template were synthesised. In the first example of a sugar hybrid cIDPR analogue, “L-cIDPR”, the natural “northern” N1-linked D-ribose of cADPR was replaced by L-ribose. L-cIDPR is surprisingly still hydrolysed by CD38, whereas 8-Br-L-cIDPR is not cleaved, even at high enzyme concentrations. Thus, the inhibitory activity of L-cIDPR analogues appears to depend upon substitution of the base at C-8; 8-Br-L-cIDPR and 8-NH2-L-cIDPR inhibit CD38-mediated cADPR hydrolysis (IC50 7 μM and 21 µM respectively) with 8-Br-L-cIDPR over 20-fold more potent than 8-Br-cIDPR. In contrast, L-cIDPR displays a comparative 75-fold reduction in activity, but is only ca 2-fold less potent than cIDPR itself. Molecular modelling was used to explore the interaction of the CD38 catalytic residue Glu-226 with the “northern” ribose. We propose that Glu226 still acts as the catalytic residue even for an L-sugar substrate. 8-Br-L-cIDPR potentially binds non-productively in an upside-down fashion. Results highlight the key role of the “northern” ribose in the interaction of cADPR with CD38.
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14
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Meng L, Zhou X, Chai Y, Li C, Liu J, Chen Q, Li W, Zhao H, He Y. The base pairs and hydrogen-bond network of the 5-Amino-8-(β-L-furanosyl)pyrimido[4,5-d]pyrimidine-2,4(3H,8H)-dione. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Barlow TMA, Tourwé D, Ballet S. Cyclisation To Form Small, Medium and Large Rings by Use of Catalysed and Uncatalysed Azide-Alkyne Cycloadditions (AACs). European J Org Chem 2017. [DOI: 10.1002/ejoc.201700521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Thomas M. A. Barlow
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
| | - Dirk Tourwé
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
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16
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Takano S, Tsuzuki T, Murayama T, Kameda T, Kumaki Y, Sakurai T, Fukuda H, Watanabe M, Arisawa M, Shuto S. Synthesis of 8-Substituted Analogues of Cyclic ADP-4-Thioribose and Their Unexpected Identification as Ca 2+-Mobilizing Full Agonists. J Med Chem 2017. [PMID: 28636353 DOI: 10.1021/acs.jmedchem.7b00540] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of 8-substituted analogues of cyclic ADP-4-thioribose (cADPtR, 3), which is a stable equivalent of Ca2+-mobilizing second messenger cyclic ADP-ribose (cADPR, 1), were designed as potential pharmacological tools for studies on cADPR-modulated Ca2+ signaling pathways. These 8-amino analogue (8-NH2-cADPtR, 4), 8-azido analogue (8-N3-cADPtR, 5), and 8-chloro analogue (8-Cl-cADPtR, 6) were efficiently synthesized, where the stereoselective N1-β-thioribosyladenine ring closure reaction via an α/β-equilibrium of the 1-aminothioribose derivative and construction of the characteristic 18-membered pyrophosphate ring by Ag+-promoted activation of a phenyl phosphorothioate type substrate were the two key steps. Although 8-NH2-cADPR (2) is a well-known potent antagonist against cADPR-inducing Ca2+-release, the 4-thioribose congener 8-NH2-cADPtR turned out unexpectedly to be a full agonist in sea urchin egg homogenate evaluation system. This important finding suggested that the ring-oxygen in the N1-ribose of cADPR analogues is essential for the antagonistic activity in the Ca2+-signaling pathway, which can contribute to clarify the structure-agonist/antagonist activity relationship.
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Affiliation(s)
| | | | - Takashi Murayama
- Department of Pharmacology, Juntendo University School of Medicine , Bunkyo-ku, Tokyo 113-8421, Japan
| | - Tomoshi Kameda
- Computational Biology Research Center, National Institute of Advanced Industrial Science and Technology (AIST) , Aomi, Koutou-ku, Tokyo 135-0064, Japan
| | - Yasuhiro Kumaki
- Faculty of Sciences, Hokkaido University , Kita-11, Nishi-8, Kita-ku, Sapporo 060-0812, Japan
| | - Takashi Sakurai
- Department of Pharmacology, Juntendo University School of Medicine , Bunkyo-ku, Tokyo 113-8421, Japan
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17
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Kowalski M, Jarosz S. Synthesis of aza-crown analogues and macrocyclic bis-lactams with sucrose scaffold. Carbohydr Res 2017; 438:44-57. [PMID: 27984704 DOI: 10.1016/j.carres.2016.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/02/2016] [Accepted: 12/02/2016] [Indexed: 12/12/2022]
Abstract
2,3,3',4,4'-Penta-O-benzylsucrose was converted into the corresponding diaminoalcohol which was used as a key building block in the synthesis of the analogues of aza-crown ethers and bis-lactams.
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Affiliation(s)
- Michał Kowalski
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Sławomir Jarosz
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland.
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18
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Zhang K, Sun W, Huang L, Zhu K, Pei F, Zhu L, Wang Q, Lu Y, Zhang H, Jin H, Zhang LH, Zhang L, Yue J. Identifying Glyceraldehyde 3-Phosphate Dehydrogenase as a Cyclic Adenosine Diphosphoribose Binding Protein by Photoaffinity Protein-Ligand Labeling Approach. J Am Chem Soc 2016; 139:156-170. [PMID: 27936653 DOI: 10.1021/jacs.6b08088] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Cyclic adenosine diphosphoribose (cADPR), an endogenous nucleotide derived from nicotinamide adenine dinucleotide (NAD+), mobilizes Ca2+ release from endoplasmic reticulum (ER) via ryanodine receptors (RyRs), yet the bridging protein(s) between cADPR and RyRs remain(s) unknown. Here we synthesized a novel photoaffinity labeling (PAL) cADPR agonist, PAL-cIDPRE, and subsequently applied it to purify its binding proteins in human Jurkat T cells. We identified glyceraldehyde 3-phosphate dehydrogenase (GAPDH) as one of the cADPR binding protein(s), characterized the binding affinity between cADPR and GAPDH in vitro by surface plasmon resonance (SPR) assay, and mapped cADPR's binding sites in GAPDH. We further demonstrated that cADPR induces the transient interaction between GAPDH and RyRs in vivo and that GAPDH knockdown abolished cADPR-induced Ca2+ release. However, GAPDH did not catalyze cADPR into any other known or novel compound(s). In summary, our data clearly indicate that GAPDH is the long-sought-after cADPR binding protein and is required for cADPR-mediated Ca2+ mobilization from ER via RyRs.
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Affiliation(s)
- Kehui Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, China.,Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China
| | - Wei Sun
- Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China.,Department of Biology and Shenzhen Key Laboratory of Cell Microenvironment, South University of Science and Technology of China , Shenzhen 518052, China
| | - Lihong Huang
- Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China
| | - Kaiyuan Zhu
- Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China
| | - Fen Pei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, China
| | - Longchao Zhu
- Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China
| | - Qian Wang
- Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China
| | - Yingying Lu
- Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China
| | - Hongmin Zhang
- Department of Biology and Shenzhen Key Laboratory of Cell Microenvironment, South University of Science and Technology of China , Shenzhen 518052, China
| | - Hongwei Jin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, China
| | - Li-He Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, China
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, China
| | - Jianbo Yue
- Department of Biomedical Sciences, City University of Hong Kong , Hong Kong, China
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19
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Sato T, Watanabe M, Tsuzuki T, Takano S, Murayama T, Sakurai T, Kameda T, Fukuda H, Arisawa M, Shuto S. Design, Synthesis, and Identification of 4″α-Azidoethyl-cyclic ADP-Carbocyclic-ribose as a Highly Potent Analogue of Cyclic ADP-Ribose, a Ca(2+)-Mobilizing Second Messenger. J Med Chem 2016; 59:7282-6. [PMID: 27391373 DOI: 10.1021/acs.jmedchem.6b00437] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cyclic adenosine diphosphate-carbocyclic-ribose (cADPcR, 2) is a stable equivalent of cyclic adenosine diphosphate-ribose (cADPR, 1), a Ca(2+)-mobilizing second messenger. On the basis of the structure-activity relationship of cADPR-related compounds and three-dimensional structural modeling of cADPcR, we designed and synthesized cyclic-ADP-4″α-azidoethyl carbocyclic-ribose (N3-cADPcR, 3) to demonstrate that it has a highly potent Ca(2+)-mobilizing activity (EC50 = 24 nM). N3-cADPcR will be a useful precursor for the preparation of biological tools effective to investigate cADPR-mediated signaling pathways.
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Affiliation(s)
- Takatoshi Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan
| | - Mizuki Watanabe
- Faculty of Pharmaceutical Sciences, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan
| | - Takayoshi Tsuzuki
- Faculty of Pharmaceutical Sciences, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan
| | - Satoshi Takano
- Faculty of Pharmaceutical Sciences, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan
| | - Takashi Murayama
- Department of Pharmacology, Juntendo University School of Medicine , Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Takashi Sakurai
- Department of Pharmacology, Juntendo University School of Medicine , Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Tomoshi Kameda
- Computational Biology Research Center (CBRC), National Institute of Advanced Industrial Science and Technology (AIST) , 2-4-7 Aomi, Koutou-ku, Tokyo 135-0064, Japan
| | - Hayato Fukuda
- Faculty of Pharmaceutical Sciences, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan
| | - Mitsuhiro Arisawa
- Faculty of Pharmaceutical Sciences, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan
| | - Satoshi Shuto
- Faculty of Pharmaceutical Sciences, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan.,Center for Research and Education on Drug Discovery, Hokkaido University , Kita-ku, Sapporo 060-0812, Japan
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20
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Vibhute AM, Konieczny V, Taylor CW, Sureshan KM. Triazolophostins: a library of novel and potent agonists of IP3 receptors. Org Biomol Chem 2016; 13:6698-710. [PMID: 25869535 PMCID: PMC4533600 DOI: 10.1039/c5ob00440c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
IP3R initiate most cellular Ca2+ signaling. AdA is the most potent agonist of IP3R. The structural complexity of AdA makes synthesis of its analogs cumbersome. We report an easy method for generating a library of potent triazole-based analogs of AdA, triazolophostins, which are the most potent AdA analogs devoid of a nucleobase.
IP3 receptors are channels that mediate the release of Ca2+ from the intracellular stores of cells stimulated by hormones or neurotransmitters. Adenophostin A (AdA) is the most potent agonist of IP3 receptors, with the β-anomeric adenine contributing to the increased potency. The potency of AdA and its stability towards the enzymes that degrade IP3 have aroused interest in AdA analogs for biological studies. The complex structure of AdA poses problems that have necessitated optimization of synthetic conditions for each analog. Such lengthy one-at-a-time syntheses limit access to AdA analogs. We have addressed this problem by synthesizing a library of triazole-based AdA analogs, triazolophostins, by employing click chemistry. An advanced intermediate having all the necessary phosphates and a β-azide at the anomeric position was reacted with various alkynes under Cu(i) catalysis to yield triazoles, which upon deprotection gave triazolophostins. All eleven triazolophostins synthesized are more potent than IP3 and some are equipotent with AdA in functional analyses of IP3 receptors. We show that a triazole ring can replace adenine without compromising the potency of AdA and provide facile routes to novel AdA analogs.
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Affiliation(s)
- Amol M Vibhute
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala-695016, India.
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21
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Abstract
Synthetic compounds open up new avenues to interrogate and manipulate intracellular Ca2+ signalling pathways. They may ultimately lead to drug-like analogues to intervene in disease. Recent advances in chemical biology tools available to probe Ca2+ signalling are described, with a particular focus on those synthetic analogues from our group that have enhanced biological understanding or represent a step towards more drug-like molecules. Adenophostin (AdA) is the most potent known agonist at the inositol 1,4,5-trisphosphate receptor (IP3R) and synthetic analogues provide a binding model for receptor activation and channel opening. 2-O-Modified inositol 1,4,5-trisphosphate (IP3) derivatives that are partial agonists at the IP3R reveal key conformational changes of the receptor upon ligand binding. Biphenyl polyphosphates illustrate that simple non-inositol surrogates can be engineered to give prototype IP3R agonists or antagonists and act as templates for protein co-crystallization. Cyclic adenosine 5'-diphosphoribose (cADPR) can be selectively modified using total synthesis, generating chemically and biologically stable tools to investigate Ca2+ release via the ryanodine receptor (RyR) and to interfere with cADPR synthesis and degradation. The first neutral analogues with a synthetic pyrophosphate bioisostere surprisingly retain the ability to release Ca2+, suggesting a new route to membrane-permeant tools. Adenosine 5'-diphosphoribose (ADPR) activates the Ca2+-, Na+- and K+-permeable transient receptor potential melastatin 2 (TRPM2) cation channel. Synthetic ADPR analogues provide the first structure-activity relationship (SAR) for this emerging messenger and the first functional antagonists. An analogue based on the nicotinic acid motif of nicotinic acid adenine dinucleotide phosphate (NAADP) antagonizes NAADP-mediated Ca2+ release in vitro and is effective in vivo against induced heart arrhythmia and autoimmune disease, illustrating the therapeutic potential of targeted small molecules.
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22
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Cummings AJ, Ravalico F, McColgan-Bannon KIS, Eguaogie O, Elliott PA, Shannon MR, Bermejo IA, Dwyer A, Maginty AB, Mack J, Vyle JS. Nucleoside azide-alkyne cycloaddition reactions under solvothermal conditions or using copper vials in a ball mill. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:361-70. [PMID: 25874944 DOI: 10.1080/15257770.2014.1001855] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Novel nucleoside analogues containing photoswitchable moieties were prepared using 'click' cycloaddition reactions between 5'-azido-5'-deoxythymidine and mono- or bis-N-propargylamide-substituted azobenzenes. In solution, high to quantitative yields were achieved using 5 mol% Cu(I) in the presence of a stabilizing ligand. 'Click' reactions using the monopropargylamides were also effected in the absence of added cuprous salts by the application of liquid assisted grinding (LAG) in metallic copper reaction vials. Specifically, high speed vibration ball milling (HSVBM) using a 3/32″ (2.38 mm) diameter copper ball (62 mg) at 60 Hz overnight in the presence of ethyl acetate lead to complete consumption of the 5'-azido nucleoside with clean conversion to the corresponding 1,3-triazole.
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Affiliation(s)
- Andrew J Cummings
- a School of Chemistry and Chemical Engineering , Queen's University Belfast , Belfast , UK
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23
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Takano S, Tsuzuki T, Murayama T, Sakurai T, Fukuda H, Arisawa M, Shuto S. Synthesis of 7-Deaza-cyclic Adenosine-5'-diphosphate-carbocyclic-ribose and Its 7-Bromo Derivative as Intracellular Ca(2+)-Mobilizing Agents. J Org Chem 2015; 80:6619-27. [PMID: 26075947 DOI: 10.1021/acs.joc.5b00723] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Cyclic ADP-carbocyclic-ribose (cADPcR, 3) is a biologically and chemically stable equivalent of cyclic ADP-ribose (cADPR, 1), a Ca(2+)-mobilizing second messenger. We became interested in the biological activity of the 7-deaza analogues of cADPcR, i.e., 7-deaza-cADPcR (7) and its 7-bromo derivative, i.e., 7-deaza-7-Br-cADPcR (8), because 7-deazaadenosine is an efficient bioisostere of adenosine. The synthesis of 7 and 8 required us to construct the key N1-carbocyclic-ribosyl-7-deazaadenosine structure. Therefore, we developed a general method for preparing N1-substituted 7-deazaadenosines by condensing a 2,3-disubstituted pyrrole nucleoside with amines. Using this method, we prepared the N1-carbocyclic ribosyl 7-deazaadenosine derivative 10a, from which we then synthesized the target 7-deaza-cADPcR (7) via an Ag(+)-promoted intramolecular condensation to construct the 18-membered pyrophosphate ring structure. The corresponding 7-bromo derivative 8, which was the first analogue of cADPR with a substitution at the 7-position, was similarly synthesized. Biological evaluation for Ca(2+)-mobilizing activity in the sea urchin egg homogenate system indicated that 7-deaza-cADPcR (7) and 7-deaza-7-Br-cADPcR (8) acted as a full agonist and a partial agonist, respectively.
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Affiliation(s)
| | | | - Takashi Murayama
- §Department of Pharmacology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Takashi Sakurai
- §Department of Pharmacology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan
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24
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Cabezas A, Ribeiro JM, Rodrigues JR, López-Villamizar I, Fernández A, Canales J, Pinto RM, Costas MJ, Cameselle JC. Molecular bases of catalysis and ADP-ribose preference of human Mn2+-dependent ADP-ribose/CDP-alcohol diphosphatase and conversion by mutagenesis to a preferential cyclic ADP-ribose phosphohydrolase. PLoS One 2015; 10:e0118680. [PMID: 25692488 PMCID: PMC4334965 DOI: 10.1371/journal.pone.0118680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 01/06/2015] [Indexed: 11/19/2022] Open
Abstract
Among metallo-dependent phosphatases, ADP-ribose/CDP-alcohol diphosphatases form a protein family (ADPRibase-Mn-like) mainly restricted, in eukaryotes, to vertebrates and plants, with preferential expression, at least in rodents, in immune cells. Rat and zebrafish ADPRibase-Mn, the only biochemically studied, are phosphohydrolases of ADP-ribose and, somewhat less efficiently, of CDP-alcohols and 2´,3´-cAMP. Furthermore, the rat but not the zebrafish enzyme displays a unique phosphohydrolytic activity on cyclic ADP-ribose. The molecular basis of such specificity is unknown. Human ADPRibase-Mn showed similar activities, including cyclic ADP-ribose phosphohydrolase, which seems thus common to mammalian ADPRibase-Mn. Substrate docking on a homology model of human ADPRibase-Mn suggested possible interactions of ADP-ribose with seven residues located, with one exception (Cys253), either within the metallo-dependent phosphatases signature (Gln27, Asn110, His111), or in unique structural regions of the ADPRibase-Mn family: s2s3 (Phe37 and Arg43) and h7h8 (Phe210), around the active site entrance. Mutants were constructed, and kinetic parameters for ADP-ribose, CDP-choline, 2´,3´-cAMP and cyclic ADP-ribose were determined. Phe37 was needed for ADP-ribose preference without catalytic effect, as indicated by the increased ADP-ribose Km and unchanged kcat of F37A-ADPRibase-Mn, while the Km values for the other substrates were little affected. Arg43 was essential for catalysis as indicated by the drastic efficiency loss shown by R43A-ADPRibase-Mn. Unexpectedly, Cys253 was hindering for cADPR phosphohydrolase, as indicated by the specific tenfold gain of efficiency of C253A-ADPRibase-Mn with cyclic ADP-ribose. This allowed the design of a triple mutant (F37A+L196F+C253A) for which cyclic ADP-ribose was the best substrate, with a catalytic efficiency of 3.5´104 M-1s-1 versus 4´103 M-1s-1 of the wild type.
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Affiliation(s)
- Alicia Cabezas
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - João Meireles Ribeiro
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - Joaquim Rui Rodrigues
- Escola Superior de Tecnologia e Gestão, Instituto Politécnico de Leiria, Leiria, Portugal
| | - Iralis López-Villamizar
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - Ascensión Fernández
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - José Canales
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - Rosa María Pinto
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - María Jesús Costas
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - José Carlos Cameselle
- Grupo de Enzimología, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
- * E-mail:
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