1
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Sex neurosteroids: Hormones made by the brain for the brain. Neurosci Lett 2021; 753:135849. [PMID: 33775739 DOI: 10.1016/j.neulet.2021.135849] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/09/2021] [Accepted: 03/22/2021] [Indexed: 11/21/2022]
Abstract
In general, hippocampal neurons are capable of synthesizing sex steroids de novo from cholesterol, since the brain is equipped with all the enzymes required for the synthesis of estradiol and testosterone, the end products of sex steroidogenesis. Regarding estradiol, its synthesis in hippocampal neurons is homeostatically controlled by Ca2+ transients and is regulated by GnRH. Locally synthesized estradiol and testosterone maintain synaptic transmission and synaptic connectivity. Remarkably, the neurosteroid estradiol is effective in females, but not in males, and vice versa dihydrotestosterone (DHT) is effective in males, but not in females. Experimentally induced inhibition of estradiol synthesis in females and DHT synthesis in males resp. results in synapse loss, impaired LTP, and downregulation of synaptic proteins. GnRH-induced increase in estradiol synthesis appears to provide a link between the hypothalamus and the hippocampus, which may underlie estrous cyclicity of spine density in the female hippocampus. Hippocampal neurons are sex-dependently differentiated with respect to the responsiveness of hippocampal neurons to sex neurosteroids.
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2
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Zhang X, Wang Y, Zhou X. Ligation-Based qPCR-Amplification Assay for Radiolabel-Free Detection of ATP and NAD + with High Selectivity and Sensitivity. Anal Chem 2019; 91:1665-1670. [PMID: 30572701 DOI: 10.1021/acs.analchem.8b05663] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We have developed a new sensing system based on quantitative real-time polymerase chain reaction assay (qPCR) to detect adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide (NAD+) with high sensitivity and selectivity. T4 DNA ligase can catalyze the ligation of two short oligonucleotides (DNA1 and DNA2), which complement a template (cDNA), in the presence of its cofactor, ATP, resulting in increased template concentration and decreased Ct values in qPCR assays. Similarly, the Escherichia coli DNA ligase is also able to catalyze the ligation of DNA1 and DNA2 upon the addition of NAD+. Moreover, this approach has potential for detecting other important cofactors in related systems. Therefore, as a convenient and sensitive strategy, the method may light new beacons and find broad application in biological fields.
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Affiliation(s)
- Xiong Zhang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of the Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology , Wuhan University , Wuhan , Hubei 430072 , PR China
| | - Yafen Wang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of the Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology , Wuhan University , Wuhan , Hubei 430072 , PR China
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of the Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology , Wuhan University , Wuhan , Hubei 430072 , PR China
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3
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Watt JM, Thomas MP, Potter BVL. Synthetic cADPR analogues may form only one of two possible conformational diastereoisomers. Sci Rep 2018; 8:15268. [PMID: 30323284 PMCID: PMC6189198 DOI: 10.1038/s41598-018-33484-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 09/27/2018] [Indexed: 12/03/2022] Open
Abstract
Cyclic adenosine 5′-diphosphate ribose (cADPR) is an emerging Ca2+-mobilising second messenger. cADPR analogues have been generated as chemical biology tools via both chemo-enzymatic and total synthetic routes. Both routes rely on the cyclisation of a linear precursor to close an 18-membered macrocyclic ring. We show here that, after cyclisation, there are two possible macrocyclic product conformers that may be formed, depending on whether cyclisation occurs to the “right” or the “left” of the adenine base (as viewed along the H-8 → C-8 base axis). Molecular modelling demonstrates that these two conformers are distinct and cannot interconvert. The two conformers would present a different spatial layout of binding partners to the cADPR receptor/binding site. For chemo-enzymatically generated analogues Aplysia californica ADP-ribosyl cyclase acts as a template to generate solely the “right-handed” conformer and this corresponds to that of the natural messenger, as originally explored using crystallography. However, for a total synthetic analogue it is theoretically possible to generate either product, or a mixture, from a given linear precursor. Cyclisation on either face of the adenine base is broadly illustrated by the first chemical synthesis of the two enantiomers of a “southern” ribose-simplified cIDPR analogue 8-Br-N9-butyl-cIDPR, a cADPR analogue containing only one chiral sugar in the “northern” ribose, i.e. 8-Br-D- and its mirror image 8-Br-L-N9-butyl-cIDPR. By replacing the D-ribose with the unnatural L-ribose sugar, cyclisation of the linear precursor with pyrophosphate closure generates a cyclised product spectroscopically identical, but displaying equal and opposite specific rotation. These findings have implications for cADPR analogue design, synthesis and activity.
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Affiliation(s)
- Joanna M Watt
- Medicinal Chemistry and 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
| | - Mark P Thomas
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Barry V L Potter
- Medicinal Chemistry and Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.
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4
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Eraslan E, Tanyeli A, Polat E, Polat E. 8-Br-cADPR, a TRPM2 ion channel antagonist, inhibits renal ischemia-reperfusion injury. J Cell Physiol 2018; 234:4572-4581. [PMID: 30191993 DOI: 10.1002/jcp.27236] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 08/24/2018] [Indexed: 01/25/2023]
Abstract
The transient receptor potential melastatin-2 (TRPM2) channel belongs to the transient receptor potential channel superfamily and is a cation channel permeable to Na+ and Ca 2+ . The TRPM2 ion channel is expressed in the kidney and can be activated by various molecules such as hydrogen peroxide, calcium, and cyclic adenosine diphosphate (ADP)-ribose (cADPR) that are produced during acute kidney injury. In this study, we investigated the role of 8-bromo-cyclic ADP-ribose (8-Br-cADPR; a cADPR antagonist) in renal ischemia-reperfusion injury using biochemical and histopathological parameters. CD38, cADPR, tumor necrosis factor-α, interleukin-1β, and myeloperoxidase (inflammatory markers), urea and creatinine, hydrogen peroxide (oxidant), and catalase (antioxidant enzyme) levels that increase with ischemia-reperfusion injury decreased in the groups treated with 8-Br-cADPR. In addition, renin levels were elevated in the groups treated with 8-Br-cADPR. Histopathological examination revealed that 8-Br-cADPR reduced renal damage and the expression of caspase-3 and TRPM2. Our results suggest that the inhibition of TRPM2 ion channel may be a new treatment modality for ischemic acute kidney injury.
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Affiliation(s)
- Ersen Eraslan
- Department of Physiology, Faculty of Medicine, University of Bozok, Yozgat, Turkey
| | - Ayhan Tanyeli
- Department of Physiology, Faculty of Medicine, University of Atatürk, Erzurum, Turkey
| | - Elif Polat
- Department of Biochemistry, Faculty of Medicine, University of Atatürk, Erzurum, Turkey
| | - Elif Polat
- Department of Histology and Embryology, Faculty of Medicine, University of Namık Kemal, Tekirdağ, Turkey
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5
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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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6
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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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7
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Dheer D, Rawal RK, Singh V, Sangwan P, Das P, Shankar R. β-CD/CuI catalyzed regioselective synthesis of iodo substituted 1,2,3-triazoles, imidazo[1,2-a]-pyridines and benzoimidazo[2,1-b]thiazoles in water and their functionalization. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.081] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Fester L, Zhou L, Ossig C, Labitzke J, Bläute C, Bader M, Vollmer G, Jarry H, Rune GM. Synaptopodin is regulated by aromatase activity. J Neurochem 2016; 140:126-139. [PMID: 27861893 DOI: 10.1111/jnc.13889] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 10/17/2016] [Accepted: 10/28/2016] [Indexed: 01/25/2023]
Abstract
Locally synthesized estradiol plays an important role in synaptic plasticity in the hippocampus. We have previously shown that in hippocampal neurons, activity of the enzyme aromatase, which converts testosterone into estradiol, is reduced via Ca2+ -dependent phosphorylation. Synaptopodin is a highly estrogen responsive protein, and it has been shown that it is an important regulator of synaptic plasticity, mediated by its close association with internal calcium stores. In this study, we show that the expression of synaptopodin is stronger in the hippocampus of female animals than in that of male animals. Phosphorylation of aromatase, using letrozole, however, down-regulates synaptopodin immunohistochemistry in the hippocampus of both male and females. Similarly, in aromatase knock-out mice synaptopodin expression in the hippocampus is reduced sex independently. Using primary-dissociated hippocampal neurons, we found that evoked release of Ca2+ from internal stores down-regulates aromatase activity, which is paralleled by reduced expression of synaptopodin. Opposite effects were achieved after inhibition of the release. Calcium-dependent regulation of synaptopodin expression was abolished when the control of aromatase activity by the Ca2+ transients was disrupted. Our data suggest that the regulation of aromatase activity by Ca2+ transients in neurons contributes to synaptic plasticity in the hippocampus of male and female animals as an on-site regulatory mechanism.
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Affiliation(s)
- Lars Fester
- Institute of Neuroanatomy, University Medical Center, Hamburg, Germany
| | - Lepu Zhou
- Institute of Neuroanatomy, University Medical Center, Hamburg, Germany
| | - Christiana Ossig
- Institute of Neuroanatomy, University Medical Center, Hamburg, Germany
| | - Jan Labitzke
- Institute of Neuroanatomy, University Medical Center, Hamburg, Germany
| | - Corinna Bläute
- Institute of Neuroanatomy, University Medical Center, Hamburg, Germany
| | - Manuela Bader
- Department of Biology, Technische Universität Dresden, Dresden, Germany
| | - Günter Vollmer
- Department of Biology, Technische Universität Dresden, Dresden, Germany
| | - Hubertus Jarry
- Department of Experimental Endocrinology, University of Goettingen, Goettingen, Germany
| | - Gabriele M Rune
- Institute of Neuroanatomy, University Medical Center, Hamburg, Germany
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9
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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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10
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Zhang Y, Liu J, Zhang CY. Real-time monitoring of small biological molecules by ligation-mediated polymerase chain reaction. Chem Commun (Camb) 2016; 51:12270-3. [PMID: 26139082 DOI: 10.1039/c5cc04269k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We develop a ligation-mediated polymerase chain reaction (PCR) for real-time detection of small biological molecules in a high-throughput format. This method is extremely sensitive with a detection limit of as low as 18.8 fM for ATP and 17.3 fM for NAD(+), and it can discriminate target molecules from their analogues as well.
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Affiliation(s)
- Yan Zhang
- Single-Molecule Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
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11
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Mahal A, D'Errico S, Borbone N, Pinto B, Secondo A, Costantino V, Tedeschi V, Oliviero G, Piccialli V, Piccialli G. Synthesis of cyclic N (1)-pentylinosine phosphate, a new structurally reduced cADPR analogue with calcium-mobilizing activity on PC12 cells. Beilstein J Org Chem 2015; 11:2689-2695. [PMID: 26877790 PMCID: PMC4734301 DOI: 10.3762/bjoc.11.289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 12/04/2015] [Indexed: 12/28/2022] Open
Abstract
Cyclic N1-pentylinosine monophosphate (cpIMP), a novel simplified inosine derivative of cyclic ADP-ribose (cADPR) in which the N1-pentyl chain and the monophosphate group replace the northern ribose and the pyrophosphate moieties, respectively, was synthesized. The role played by the position of the phosphate group in the key cyclization step, which consists in the formation of a phosphodiester bond, was thoroughly investigated. We have also examined the influence of the phosphate bridge on the ability of cpIMP to mobilize Ca2+ in PC12 neuronal cells in comparison with the pyrophosphate bridge present in the cyclic N1-pentylinosine diphosphate analogue (cpIDP) previously synthesized in our laboratories. The preliminary biological tests indicated that cpIMP and cpIDP induce a rapid increase of intracellular Ca2+ concentration in PC12 neuronal cells.
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Affiliation(s)
- Ahmed Mahal
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Stefano D'Errico
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Brunella Pinto
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Agnese Secondo
- Dipartimento di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy
| | - Valeria Costantino
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Valentina Tedeschi
- Dipartimento di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy
| | - Giorgia Oliviero
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Vincenzo Piccialli
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy.,Institute of Protein Biochemistry, National Council Research of Italy, Via Pietro Castellino 111, 80131 Napoli, Italy
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12
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Zhang L, Yue J, Zhang LH. Cyclic adenosine 5'-diphosphoribose (cADPR) mimics used as molecular probes in cell signaling. CHEM REC 2015; 15:511-23. [PMID: 25707449 DOI: 10.1002/tcr.201402072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 11/12/2022]
Abstract
Cyclic adenosine 5'-diphosphate ribose (cADPR) is a second messenger in the Ca(2+) signaling pathway. To elucidate its molecular mechanism in calcium release, a series of cADPR analogues with modification on ribose, nucleobase, and pyrophosphate have been investigated. Among them, the analogue with the modification of the northern ribose by ether linkage substitution (cIDPRE) exhibits membrane-permeate Ca(2+) agonistic activity in intact HeLa cells, human T cells, mouse cardiac myocytes and neurosecretory PC12 cell lines; thus, cIDPRE and coumarin-caged cIDPRE are valuable probes to investigate the cADPR-mediated Ca(2+) signal pathway.
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Affiliation(s)
- Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, P. R. China.
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13
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A novel method for the synthesis of sulfur substituted-cyclopyrophosphate of cADPR analogs. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Swarbrick J, Graeff R, Zhang H, Thomas MP, Hao Q, Potter BVL. Cyclic adenosine 5'-diphosphate ribose analogs without a "southern" ribose inhibit ADP-ribosyl cyclase-hydrolase CD38. J Med Chem 2014; 57:8517-29. [PMID: 25226087 PMCID: PMC4207131 DOI: 10.1021/jm501037u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cyclic adenosine 5'-diphosphate ribose (cADPR) analogs based on the cyclic inosine 5'-diphosphate ribose (cIDPR) template were synthesized by recently developed stereo- and regioselective N1-ribosylation. Replacing the base N9-ribose with a butyl chain generates inhibitors of cADPR hydrolysis by the human ADP-ribosyl cyclase CD38 catalytic domain (shCD38), illustrating the nonessential nature of the "southern" ribose for binding. Butyl substitution generally improves potency relative to the parent cIDPRs, and 8-amino-N9-butyl-cIDPR is comparable to the best noncovalent CD38 inhibitors to date (IC50 = 3.3 μM). Crystallographic analysis of the shCD38:8-amino-N9-butyl-cIDPR complex to a 2.05 Å resolution unexpectedly reveals an N1-hydrolyzed ligand in the active site, suggesting that it is the N6-imino form of cADPR that is hydrolyzed by CD38. While HPLC studies confirm ligand cleavage at very high protein concentrations, they indicate that hydrolysis does not occur under physiological concentrations. Taken together, these analogs confirm that the "northern" ribose is critical for CD38 activity and inhibition, provide new insight into the mechanism of cADPR hydrolysis by CD38, and may aid future inhibitor design.
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Affiliation(s)
- Joanna
M. Swarbrick
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Richard Graeff
- Department
of Physiology, University of Hong Kong, Hong Kong, China
| | - Hongmin Zhang
- Department
of Physiology, University of Hong Kong, Hong Kong, China
| | - Mark P. Thomas
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Quan Hao
- Department
of Physiology, University of Hong Kong, Hong Kong, China
| | - Barry V. L. Potter
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom,Phone: ++44-1225-386639. Fax: ++44-1225-386114. E-mail:
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15
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Jiang C, Kan YY, Jiang JH, Yu RQ. A simple and highly sensitive DNAzyme-based assay for nicotinamide adenine dinucleotide by ligase-mediated inhibition of strand displacement amplification. Anal Chim Acta 2014; 844:70-4. [PMID: 25172818 DOI: 10.1016/j.aca.2014.06.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 05/14/2014] [Accepted: 06/25/2014] [Indexed: 12/27/2022]
Abstract
Existing strategies for detecting nicotinamide adenine dinucleotide (NAD(+)) or other cofactors are commonly cumbersome and moderate sensitive. We report a novel DNAzyme-based visual assay strategy for NAD(+) based on ligase-mediated inhibition of the strand displacement amplification (SDA). In the presence of NAD(+), the SDA can be inhibited by the ligase reaction of two primers, which can initiate the SDA reaction in the case of no ligation, resulting in a dramatically decreasing yield of the SDA product, a G-quadruplex DNAzyme that can quantitatively catalyze the formation of a colored product. Therefore, the quantitative analysis for NAD(+) can be achieved visually with high sensitivity. The developed strategy provides a simple colorimetric approach with high selectivity against most interferences and a detection limit as low as 50 pM. It also provides a universal platform for investigating cofactors or other related small molecules as well as quantifying the activity of DNA ligases.
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Affiliation(s)
- Cheng Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Ying-Ya Kan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
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16
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Warszta D, Nebel M, Fliegert R, Guse AH. NAD derived second messengers: Role in spontaneous diastolic Ca(2+) transients in murine cardiac myocytes. DNA Repair (Amst) 2014; 23:69-78. [PMID: 24997848 DOI: 10.1016/j.dnarep.2014.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/15/2014] [Accepted: 05/22/2014] [Indexed: 10/25/2022]
Abstract
Strong β-adrenergic stimulation induced spontaneous diastolic Ca(2+) transients (SCTs) in electrically paced murine cardiac myocytes [28]. To obtain further insights into the underlying mechanism, we developed a method for a simultaneous analysis, in which the free luminal Ca(2+) concentration in the sarcoplasmic reticulum (SR) ([Ca(2+)]SR) and the free cytosolic Ca(2+) concentration ([Ca(2+)]i) were measured in parallel in the same cell. Each spontaneous diastolic Ca(2+) transient was exactly mirrored by a decrease of [Ca(2+)]SR. Since antagonism of the Ca(2+) mobilizing second messenger nicotinic acid adenine dinucleotide phosphate (NAADP) was shown to block SCTs in single cardiac myocytes [28], we analyzed the effect of the novel ADP-ribosyl cyclase inhibitor SAN4825 on both cytosolic and intra-luminal Ca(2+) transients upon strong β-adrenergic stimulation. A strong antagonist effect of SAN4825 on SCTs at low micromolar concentrations was observed. Our results suggest that the underlying mechanism of spontaneous diastolic Ca(2+) transients observed upon strong β-adrenergic stimulation is sensitization of type 2 ryanodine receptor by the Ca(2+) releasing activity of the products of ADP-ribosyl cyclase activity.
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Affiliation(s)
- Dominik Warszta
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Merle Nebel
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Ralf Fliegert
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Andreas H Guse
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.
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17
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Cao Z, Wang P, Qiu X, Lau C, Lu J. Ligation-triggered fluorescent silver nanoclusters system for the detection of nicotinamide adenine dinucleotide. Anal Bioanal Chem 2014; 406:1895-902. [PMID: 24442015 DOI: 10.1007/s00216-013-7609-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 12/25/2013] [Accepted: 12/29/2013] [Indexed: 01/08/2023]
Abstract
Herein, we demonstrate a novel silver nanocluster-based fluorescent system for the detection of nicotinamide adenine dinucleotide (NAD(+)), an important biological small molecule involved in a wide range of biological processes. A single-stranded dumbbell DNA probe was designed and used for the assay, which contained a nick in the stem, a poly-cytosine nucleotide loop close to 5' end as the template for the formation of highly fluorescent silver nanoclusters (Ag NCs) and another loop close to 3' end. Only in the presence of NAD(+), the probe was linked at 5' and 3' ends by Escherichia coli DNA ligase, which blocked the DNA polymerase-based extension reaction, ensuring the formation of fluorescent Ag NCs. This technique provided a logarithmic linear relationship in the range of 1 pM-500 nM with a detection limit of as low as 1 pM NAD(+), and exhibited high selectivity against its analogues, and was then successfully used for the detection of NAD(+) level in four kinds of cell homogenates. In addition, this new approach was conducted in an isothermal and homogeneous condition without the need of any thermal cycling, washing, and separation steps, making it very simple. Overall, this label-free protocol offers a promising alternative for the detection of NAD(+), taking advantage of specificity, sensitivity, cost-efficiency, and simplicity.
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Affiliation(s)
- Zhijuan Cao
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China
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18
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Guse AH. Measuring Ca2+ release evoked by cyclic adp-ribose. Cold Spring Harb Protoc 2013; 2013:574-8. [PMID: 23734018 DOI: 10.1101/pdb.prot073015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
As a ubiquitous second messenger, the Ca(2+) mobilizing activity of cyclic ADP-ribose (cADPR) has been observed in many different cell types. The measurement of Ca(2+) release evoked by cADPR comprises several practical challenges. At physiological pH, cADPR has a net negative charge and it therefore cannot cross the cell membrane in cells that lack a suitable cADPR-transporting system. Thus, either the plasma membrane must be permeabilized or microinjection must be used to deliver cADPR to the cytosol. In this article, two methods for cADPR delivery (using permeabilized cells or microinjection) are explained step-by-step. Because most of our work has been performed using the Jurkat T-lymphoma cell line, the methods are tailored for this specific cell type. For other cell types, the procedures may need to be adapted.
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Affiliation(s)
- Andreas H Guse
- The Calcium Signalling Group, Department of Biochemistry and Signal Transduction and Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
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19
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Nebel M, Schwoerer AP, Warszta D, Siebrands CC, Limbrock AC, Swarbrick JM, Fliegert R, Weber K, Bruhn S, Hohenegger M, Geisler A, Herich L, Schlegel S, Carrier L, Eschenhagen T, Potter BVL, Ehmke H, Guse AH. Nicotinic acid adenine dinucleotide phosphate (NAADP)-mediated calcium signaling and arrhythmias in the heart evoked by β-adrenergic stimulation. J Biol Chem 2013; 288:16017-30. [PMID: 23564460 PMCID: PMC3668757 DOI: 10.1074/jbc.m112.441246] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Nicotinic acid adenine dinucleotide phosphate (NAADP) is the most potent Ca(2+)-releasing second messenger known to date. Here, we report a new role for NAADP in arrhythmogenic Ca(2+) release in cardiac myocytes evoked by β-adrenergic stimulation. Infusion of NAADP into intact cardiac myocytes induced global Ca(2+) signals sensitive to inhibitors of both acidic Ca(2+) stores and ryanodine receptors and to NAADP antagonist BZ194. Furthermore, in electrically paced cardiac myocytes BZ194 blocked spontaneous diastolic Ca(2+) transients caused by high concentrations of the β-adrenergic agonist isoproterenol. Ca(2+) transients were recorded both as increases of the free cytosolic Ca(2+) concentration and as decreases of the sarcoplasmic luminal Ca(2+) concentration. Importantly, NAADP antagonist BZ194 largely ameliorated isoproterenol-induced arrhythmias in awake mice. We provide strong evidence that NAADP-mediated modulation of couplon activity plays a role for triggering spontaneous diastolic Ca(2+) transients in isolated cardiac myocytes and arrhythmias in the intact animal. Thus, NAADP signaling appears an attractive novel target for antiarrhythmic therapy.
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Affiliation(s)
- Merle Nebel
- Calcium Signalling Group, Department of Biochemistry and Signal Transduction, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
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20
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Yu PL, Zhang ZH, Hao BX, Zhao YJ, Zhang LH, Lee HC, Zhang L, Yue J. A novel fluorescent cell membrane-permeable caged cyclic ADP-ribose analogue. J Biol Chem 2012; 287:24774-83. [PMID: 22661714 PMCID: PMC3397904 DOI: 10.1074/jbc.m111.329854] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Cyclic adenosine diphosphate ribose is an endogenous Ca2+ mobilizer involved in diverse cellular processes. A cell membrane-permeable cyclic adenosine diphosphate ribose analogue, cyclic inosine diphosphoribose ether (cIDPRE), can induce Ca2+ increase in intact human Jurkat T-lymphocytes. Here we synthesized a coumarin-caged analogue of cIDPRE (Co-i-cIDPRE), aiming to have a precisely temporal and spatial control of bioactive cIDPRE release inside the cell using UV uncaging. We showed that Co-i-cIDPRE accumulated inside Jurkat cells quickly and efficiently. Uncaging of Co-i-cIDPRE evoked Ca2+ release from endoplasmic reticulum, with concomitant Ca2+ influx in Jurkat cells. Ca2+ release evoked by uncaged Co-i-cIDPRE was blocked by knockdown of ryanodine receptors (RyRs) 2 and 3 in Jurkat cells. The associated Ca2+ influx, on the other hand, was abolished by double knockdown of Stim1 and TRPM2 in Jurkat cells. Furthermore, Ca2+ release or influx evoked by uncaged Co-i-cIDPRE was recapitulated in HEK293 cells that overexpress RyRs or TRPM2, respectively, but not in wild-type cells lacking these channels. In summary, our results indicate that uncaging of Co-i-cIDPRE incites Ca2+ release from endoplasmic reticulum via RyRs and triggers Ca2+ influx via TRPM2.
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Affiliation(s)
- Pei-Lin Yu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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21
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Zhou Y, Yu P, Jin H, Yang Z, Yue J, Zhang L, Zhang L. Synthesis and calcium mobilization activity of cADPR analogues which integrate nucleobase, northern and southern ribose modifications. Molecules 2012; 17:4343-56. [PMID: 22491682 PMCID: PMC6268930 DOI: 10.3390/molecules17044343] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 03/31/2012] [Accepted: 04/05/2012] [Indexed: 02/07/2023] Open
Abstract
Novel cADPR mimics, which integrate nucleobase, northern and southern ribose modifications were synthesized. The key steps of the synthesis were a Cu(I)-catalyzed Hüisgen [3+2] cycloaddition and a microwave-assisted intramolecular pyrophosphorylation. Preliminary biological investigations showed that these cADPR mimics are membrane-permeating agonists of the calcium signaling pathway. The introduction of chlorine or fluorine at the 2'-position of the southern riboses led to a decrease of activity. The existence of a hydrophobic group on the 3'-OH of the southern riboses does not obviously alter the agonistic activity.
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Affiliation(s)
- Yue Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Peilin Yu
- 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
| | - Zhenjun Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jianbo Yue
- Department of Physiology, University of Hong Kong, Hong Kong, China
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Author to whom correspondence should be addressed; ; Tel: +86-10-8280-2567, Fax: +86-10-8280-5063
| | - Lihe Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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22
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Moreau C, Kirchberger T, Zhang B, Thomas MP, Weber K, Guse AH, Potter BVL. Aberrant cyclization affords a C-6 modified cyclic adenosine 5'-diphosphoribose analogue with biological activity in Jurkat T cells. J Med Chem 2012; 55:1478-89. [PMID: 22248391 PMCID: PMC3285147 DOI: 10.1021/jm201127y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two nicotinamide adenine dinucleotide (NAD(+)) analogues modified at the 6 position of the purine ring were synthesized, and their substrate properties toward Aplysia californica ADP-ribosyl cyclase were investigated. 6-N-Methyl NAD(+) (6-N-methyl nicotinamide adenosine 5'-dinucleotide 10) hydrolyzes to give the linear 6-N-methyl ADPR (adenosine 5'-diphosphoribose, 11), whereas 6-thio NHD(+) (nicotinamide 6-mercaptopurine 5'-dinucleotide, 17) generates a cyclic dinucleotide. Surprisingly, NMR correlation spectra confirm this compound to be the N1 cyclic product 6-thio N1-cIDPR (6-thio cyclic inosine 5'-diphosphoribose, 3), although the corresponding 6-oxo analogue is well-known to cyclize at N7. In Jurkat T cells, unlike the parent cyclic inosine 5'-diphosphoribose N1-cIDPR 2, 6-thio N1-cIDPR antagonizes both cADPR- and N1-cIDPR-induced Ca(2+) release but possesses weak agonist activity at higher concentration. 3 is thus identified as the first C-6 modified cADPR (cyclic adenosine 5'-diphosphoribose) analogue antagonist; it represents the first example of a fluorescent N1-cyclized cADPR analogue and is a new pharmacological tool for intervention in the cADPR pathway of cellular signaling.
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Affiliation(s)
- Christelle Moreau
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
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23
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Swarbrick JM, Potter BVL. Total synthesis of a cyclic adenosine 5'-diphosphate ribose receptor agonist. J Org Chem 2012; 77:4191-7. [PMID: 22283398 PMCID: PMC3343700 DOI: 10.1021/jo202319f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Stable cyclic adenosine 5′-diphosphate ribose
(cADPR) analogues
are chemical biology tools that can probe the Ca2+ release
mechanism and structure–activity relationships of this emerging
potent second messenger. However, analogues with an intact “northern”
ribose have been inaccessible due to the difficulty of generating
the sensitive N1-ribosyl link. We report the first
total synthesis of the membrane permeant, hydrolytically stable, cADPR
receptor agonist 8-Br-N1-cIDPR via regio- and stereoselective N1-ribosylation of protected 8-bromoinosine.
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Affiliation(s)
- Joanna M Swarbrick
- Wolfson Laboratory of Medicinal Chemistry, University of Bath, Department of Pharmacy and Pharmacology, Claverton Down, Bath BA2 7AY, UK
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24
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Qi N, Jung K, Wang M, Na LX, Yang ZJ, Zhang LR, Guse AH, Zhang LH. A novel membrane-permeant cADPR antagonist modified in the pyrophosphate bridge. Chem Commun (Camb) 2011; 47:9462-4. [PMID: 21785757 DOI: 10.1039/c1cc13062e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise method for the formation of cyclopyrophosphate of cIDPRE as well as sulfur and selenium-substituted pyrophosphate cIDPRE analogues (P(1)(S)-cIDPRE, P(1)(Se)-cIDPRE, P(2)(S)-cIDPRE and P(2)(Se)-cIDPRE) was reported and one of the P(S)-diastereoisomers, P(1)(S)-cIDPRE-1, is a novel membrane-permeant cADPR antagonist.
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Affiliation(s)
- N Qi
- State Key Laboratory of Natural & Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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25
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Lu LM, Zhang XB, Kong RM, Yang B, Tan W. A ligation-triggered DNAzyme cascade for amplified fluorescence detection of biological small molecules with zero-background signal. J Am Chem Soc 2011; 133:11686-91. [PMID: 21662240 DOI: 10.1021/ja203693b] [Citation(s) in RCA: 197] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Many types of fluorescent sensing systems have been reported for biological small molecules. Particularly, several methods have been developed for the recognition of ATP or NAD(+), but they only show moderate sensitivity, and they cannot discriminate either ATP or NAD(+) from their respective analogues. We have addressed these limitations and report here a dual strategy which combines split DNAzyme-based background reduction with catalytic and molecular beacon (CAMB)-based amplified detection to develop a ligation-triggered DNAzyme cascade, resulting in ultrahigh sensitivity. First, the 8-17 DNAzyme is split into two separate oligonucleotide fragments as the building blocks for the DNA ligation reaction, thereby providing a zero-background signal to improve overall sensitivity. Next, a CAMB strategy is further employed for amplified signal detection achieved through cycling and regenerating the DNAzyme to realize the true enzymatic multiple turnover (one enzyme catalyzes the cleavage of several substrates) of catalytic beacons. This combination of zero-background signal and signal amplification significantly improves the sensitivity of the sensing systems, resulting in detection limits of 100 and 50 pM for ATP and NAD(+), respectively, much lower than those of previously reported biosensors. Moreover, by taking advantage of the highly specific biomolecule-dependence of the DNA ligation reaction, the developed DNAzyme cascades show significantly high selectivity toward the target cofactor (ATP or NAD(+)), and the target biological small molecule can be distinguished from its analogues. Therefore, as a new and universal platform for the design of DNA ligation reaction-based sensing systems, this novel ligation-triggered DNAzyme cascade method may find a broad spectrum of applications in both environmental and biomedical fields.
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Affiliation(s)
- Li-Min Lu
- State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, P. R., China
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26
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Huang X, Dong M, Liu J, Zhang K, Yang Z, Zhang L, Zhang L. Concise syntheses of trifluoromethylated cyclic and acyclic analogues of cADPR. Molecules 2010; 15:8689-701. [PMID: 21119564 PMCID: PMC6259357 DOI: 10.3390/molecules15128689] [Citation(s) in RCA: 11] [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: 11/06/2010] [Revised: 11/17/2010] [Accepted: 11/22/2010] [Indexed: 11/26/2022] Open
Abstract
A novel trifluoromethylated analogue of cADPR, 8-CF3-cIDPDE (5) was designed and synthesized via construction of N1,N9-disubstituted hypoxanthine, trifluoromethylation and intramolecular condensation. A series of acyclic analogues of cADPR were also designed and synthesized. These compounds could be useful molecules for studying the structure-activity relationship of cADPR analogues and exploring the cADPR/RyR Ca2+ signalling system.
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Affiliation(s)
| | | | | | | | | | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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27
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Dong M, Kirchberger T, Huang X, Yang ZJ, Zhang LR, Guse AH, Zhang LH. Trifluoromethylated cyclic-ADP-ribose mimic: synthesis of 8-trifluoromethyl-N(1)-[(5''-O-phosphorylethoxy)methyl]-5'-O-phosphorylinosine-5',5''-cyclic pyrophosphate (8-CF(3)-cIDPRE) and its calcium release activity in T cells. Org Biomol Chem 2010; 8:4705-15. [PMID: 20740240 DOI: 10.1039/c0ob00090f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient trifluoromethylation method was firstly applied to the synthesis of 8- CF(3)-purine nucleosides. On the basis of this method, new protection and deprotection strategies were developed for the successful synthesis of the trifluoromethylated cyclic-ADP-ribose mimic, 8-CF(3)-cIDPRE 1. Using intact, fura-2-loaded Jurkat T cells compound 1 and 2',3'-O-isopropylidene 8-CF(3)-cIDPRE 14 were characterized as membrane-permeant cADPR agonists. Contrary to the 8-substituted cADPR analogues that mainly act as antagonists of cADPR in cells, 8-substituted cIDPRE derivatives were shown to be Ca(2+) mobilizing agonists. Here we report that even compound 1, the 8-substituted cIDPRE with the strong electron withdrawing CF(3) group, behaves as an agonist in T cells. Interestingly, also the partially protected 2',3'-O-isopropylidene 8-CF(3)-cIDPRE activated Ca(2+) signaling indicating only a minor role for the hydroxyl groups of the southern ribose of cADPR for its biological activity. To our knowledge 8-CF(3)-cIDPRE 1 is the first reported fluoro substituted cADPR mimic and 8-CF(3)-cIDPRE 1 and compound 14 are promising molecular probes for elucidating the mode of action of cADPR.
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Affiliation(s)
- Min Dong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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28
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Li L, Siebrands CC, Yang Z, Zhang L, Guse AH, Zhang L. Novel nucleobase-simplified cyclic ADP-ribose analogue: A concise synthesis and Ca(2+)-mobilizing activity in T-lymphocytes. Org Biomol Chem 2010; 8:1843-8. [PMID: 20449488 DOI: 10.1039/b925295a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A purine nucleobase-simplified cyclic ADP ribose (cADPR) analogue was synthesized, in which a 1,2,3-triazole-4-amide was constructed, instead of a purine moiety, and the northern ribose was replaced by an ether strand. Compound exhibits calcium release activity in intact T-lymphocytes and indicates that it is a membrane-permeable cADPR mimic. Thus, the cADPR analogue containing 1,2,3-triazole-4-amide provides a novel template for further designing cADPR analogues and elucidating their structure-activity relationships.
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Affiliation(s)
- Lingjun Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100083, PR China
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29
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A solid-phase approach to the synthesis of N-1-alkyl analogues of cyclic inosine-diphosphate-ribose (cIDPR). Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Wu H, Yang Z, Zhang L, Zhang L. Concise synthesis of novel acyclic analogues of cADPR with an ether chain as the northern moiety. NEW J CHEM 2010. [DOI: 10.1039/b9nj00595a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Liu W, Wu S, Hou S, Zhao Z(K. Synthesis of phosphodiester-type nicotinamide adenine dinucleotide analogs. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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32
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Abstract
cADPR (cyclic ADP-ribose) is a universal Ca2+ mobilizing second messenger. In T-cells cADPR is involved in sustained Ca2+ release and also in Ca2+ entry. Potential mechanisms for the latter include either capacitative Ca2+ entry, secondary to store depletion by cADPR, or direct activation of the non-selective cation channel TRPM2 (transient receptor potential cation channel, subfamily melastatin, member 2). Here we characterize the molecular target of the newly-described membrane-permeant cADPR agonist 8-Br-N1-cIDPR (8-bromo-cyclic IDP-ribose). 8-Br-N1-cIDPR evoked Ca2+ signalling in the human T-lymphoma cell line Jurkat and in primary rat T-lymphocytes. Ca2+ signalling induced by 8-Br-N1-cIDPR consisted of Ca2+ release and Ca2+ entry. Whereas Ca2+ release was sensitive to both the RyR (ryanodine receptor) blocker RuRed (Ruthenium Red) and the cADPR antagonist 8-Br-cADPR (8-bromo-cyclic ADP-ribose), Ca2+ entry was inhibited by the Ca2+ entry blockers Gd3+ (gadolinium ion) and SKF-96365, as well as by 8-Br-cADPR. To unravel a potential role for TRPM2 in sustained Ca2+ entry evoked by 8-Br-N1-cIDPR, TRPM2 was overexpressed in HEK (human embryonic kidney)-293 cells. However, though activation by H2O2 was enhanced dramatically in those cells, Ca2+ signalling induced by 8-Br-N1-cIDPR was almost unaffected. Similarly, direct analysis of TRPM2 currents did not reveal activation or co-activation of TRPM2 by 8-Br-N1-cIDPR. In summary, the sensitivity to the Ca2+ entry blockers Gd3+ and SKF-96365 is in favour of the concept of capacitative Ca2+ entry, secondary to store depletion by 8-Br-N1-cIDPR. Taken together, 8-Br-N1-cIDPR appears to be the first cADPR agonist affecting Ca2+ release and secondary Ca2+ entry, but without effect on TRPM2.
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33
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NAADP-mediated Ca2+ signaling via type 1 ryanodine receptor in T cells revealed by a synthetic NAADP antagonist. Proc Natl Acad Sci U S A 2009; 106:10678-83. [PMID: 19541638 DOI: 10.1073/pnas.0809997106] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The nucleotide NAADP was recently discovered as a second messenger involved in the initiation and propagation of Ca(2+) signaling in lymphoma T cells, but its impact on primary T cell function is still unknown. An optimized, synthetic, small molecule inhibitor of NAADP action, termed BZ194, was designed and synthesized. BZ194 neither interfered with Ca(2+) mobilization by d-myo-inositol 1,4,5-trisphosphate or cyclic ADP-ribose nor with capacitative Ca(2+) entry. BZ194 specifically and effectively blocked NAADP-stimulated [(3)H]ryanodine binding to the purified type 1 ryanodine receptor. Further, in intact T cells, Ca(2+) mobilization evoked by NAADP or by formation of the immunological synapse between primary effector T cells and astrocytes was inhibited by BZ194. Downstream events of Ca(2+) mobilization, such as nuclear translocation of "nuclear factor of activated T cells" (NFAT), T cell receptor-driven interleukin-2 production, and proliferation in antigen-experienced CD4(+) effector T cells, were attenuated by the NAADP antagonist. Taken together, specific inhibition of the NAADP signaling pathway constitutes a way to specifically and effectively modulate T-cell activation and has potential in the therapy of autoimmune diseases.
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34
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A concise route for the preparation of nucleobase-simplified cADPR mimics by click chemistry. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.05.076] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Li L, Zhang G, Zhu A, Zhang L. A convenient preparation of 5-iodo-1,4-disubstituted-1,2,3-triazole: multicomponent one-pot reaction of azide and alkyne mediated by CuI-NBS. J Org Chem 2008; 73:3630-3. [PMID: 18357998 DOI: 10.1021/jo800035v] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The system of CuI and NBS was found to provide both I (+) and Cu (+) for the first time. An efficient method for preparation of 5-iodo-1,4-disubstituted-1,2,3-triazole was achieved by multicomponent one-pot reaction of azides with alkynes in the presence of the novel CuI and NBS catalytic system. The high tolerance of various sensitive groups revealed the potential applications of this method in organic synthesis and drug discovery.
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Affiliation(s)
- Lingjun Li
- College of Chemistry and Environmental Science, Henan Normal University, XinXiang 453007, P. R. China
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Zhang B, Wagner GK, Weber K, Garnham C, Morgan AJ, Galione A, Guse AH, Potter BVL. 2'-deoxy cyclic adenosine 5'-diphosphate ribose derivatives: importance of the 2'-hydroxyl motif for the antagonistic activity of 8-substituted cADPR derivatives. J Med Chem 2008; 51:1623-36. [PMID: 18303825 DOI: 10.1021/jm7010386] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The structural features needed for antagonism at the cyclic ADP-ribose (cADPR) receptor are unclear. Chemoenzymatic syntheses of novel 8-substituted 2'-deoxy-cADPR analogues, including 8-bromo-2'-deoxy-cADPR 7, 8-amino-2'-deoxy-cADPR 8, 8- O-methyl-2'-deoxy-cADPR 9, 8-phenyl-2'-deoxy-cADPR 10 and its ribose counterpart 8-phenyl-cADPR 5 are reported, including improved syntheses of established antagonists 8-amino-cADPR 2 and 8-bromo-cADPR 3. Aplysia californica ADP-ribosyl cyclase tolerates even the bulky 8-phenyl-nicotinamide adenine 5'-dinucleotide as a substrate. Structure-activity relationships of 8-substituted cADPR analogues in both Jurkat T-lymphocytes and sea urchin egg homogenate (SUH) were investigated. 2'-OH Deletion decreased antagonistic activity (at least for the 8-amino series), showing it to be an important motif. Some 8-substituted 2'-deoxy analogues showed agonist activity at higher concentrations, among which 8-bromo-2'-deoxy-cADPR 7 was, unexpectedly, a weak but almost full agonist in SUH and was membrane-permeant in whole eggs. Classical antagonists 2 and 3 also showed previously unobserved agonist activity at higher concentrations in both systems. The 2'-OH group, without effect on the Ca (2+)-mobilizing ability of cADPR itself, is an important motif for the antagonistic activities of 8-substituted cADPR analogues.
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Affiliation(s)
- Bo Zhang
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, UK
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Adenine-based calcium signal pathway messengers: Synthesis and agonistic properties of cyclic ADP-ribose analogs. PURE APPL CHEM 2008. [DOI: 10.1351/pac200880081821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
A series of cyclic ADP-ribose (cADPR) analogs, in which modifications mainly focused on riboses, was synthesized in order to explore the molecular mechanism of calcium release regulated by cADPR. Biological activities investigated in intact T-lymphocytes showed that the structurally simplified analogs, N1-ethoxymethyl-substituted cyclic inosine diphosphoribose (cIDPRE), N1,N9-diethoxymethyl-substituted cyclic inosine diphosphoribose (cIDPDE), and N1-ethoxymethyl-substituted cyclic adenosine diphosphoribose (cADPRE) in which the northern ribose or both northern and southern riboses were replaced by ether linkages are membrane-permeant and induce calcium release from intracellular stores. This research has provided novel molecules to probe cADPR-mediated calcium signaling and enlarges our knowledge of the structure-activity relationships of cADPR analogs.
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Fliegert R, Gasser A, Guse AH. Regulation of calcium signalling by adenine-based second messengers. Biochem Soc Trans 2007; 35:109-14. [PMID: 17233614 DOI: 10.1042/bst0350109] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
cADPR [cyclic ADPR (ADP-ribose)], NAADP (nicotinic acid-adenine dinucleotide phosphate) and ADPR belong to the family of adenine-containing second messengers. They are metabolically related and are all involved in the regulation of cellular Ca(2+) homoeostasis. Activation of specific plasma membrane receptors is connected to cADPR formation in many cell types and tissues. In contrast receptor-mediated formation of NAADP and ADPR has been shown only in a few selected cellular systems. The intracellular Ca(2+) channel triggered by cADPR is the RyR (ryanodine receptor); in the case of NAADP, both activation of RyR and a novel Ca(2+) channel have been proposed. In contrast, ADPR opens the non-specific cation channel TRPM2 [TRP (transient receptor potential) melastatin 2] that belongs to the TRP family of ion channels.
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Affiliation(s)
- R Fliegert
- The Calcium Signalling Group, Institute of Biochemistry and Molecular Biology I: Cellular Signal Transduction, Centre of Experimental Medicine, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
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Kirchberger T, Wagner G, Xu J, Cordiglieri C, Wang P, Gasser A, Fliegert R, Bruhn S, Flügel A, Lund FE, Zhang LH, Potter BVL, Guse AH. Cellular effects and metabolic stability of N1-cyclic inosine diphosphoribose and its derivatives. Br J Pharmacol 2006; 149:337-44. [PMID: 16967053 PMCID: PMC1978434 DOI: 10.1038/sj.bjp.0706869] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND PURPOSE Recently, a number of mimics of the second messenger cyclic ADP-ribose (cADPR) with replacement of adenosine by inosine were introduced. In addition, various alterations in the molecule ranging from substitutions at C8 of the base up to full replacement of the ribose moieties still retained biological activity. However, nothing is known about the metabolic stability and cellular effects of these novel analogues. EXPERIMENTAL APPROACH cADPR and the inosine-based analogues were incubated with CD38, ADP-ribosyl cyclase and NAD-glycohydrolase and metabolism was analysed by RP-HPLC. Furthermore, the effect of the analogues on cytokine expression and proliferation was investigated in primary T-lymphocytes and T-lymphoma cells. KEY RESULTS Incubation of cADPR with CD38 resulted in degradation to adenosine diphosphoribose. ADP-ribosyl cyclase weakly catabolised cADPR whereas NAD-glycohydrolase showed no such activity. In contrast, N1-cyclic inosine 5'-diphosphoribose (N1-cIDPR) was not hydrolyzed by CD38. Three additional N1-cIDPR analogues showed a similar stability. Proliferation of Jurkat T-lymphoma cells was inhibited by N1-cIDPR, N1-[(phosphoryl-O-ethoxy)-methyl]-N9-[(phosphoryl-O-ethoxy)-methyl]-hypoxanthine-cyclic pyrophosphate (N1-cIDP-DE) and N1-ethoxymethyl-cIDPR (N1-cIDPRE). In contrast, in primary T cells neither proliferation nor cytokine expression was affected by these compounds. CONCLUSIONS AND IMPLICATIONS The metabolic stability of N1-cIDPR and its analogues provides an advantage for the development of novel pharmaceutical compounds interfering with cADPR mediated Ca2+ signalling pathways. The differential effects of N1-cIDPR and N1-cIDPRE on proliferation and cytokine expression in primary T cells versus T-lymphoma cells may constitute a starting point for novel anti-tumor drugs.
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Affiliation(s)
- T Kirchberger
- Centre of Experimental Medicine, Institute of Biochemistry and Molecular Biology I: Cellular Signal Transduction, University Medical Centre Hamburg-Eppendorf Hamburg, Germany
| | - G Wagner
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath Bath, UK
| | - J Xu
- National Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Beijing, China
| | - C Cordiglieri
- Department of Neuroimmunology, Max-Planck-Institute for Neurobiology Martinsried, Germany
| | - P Wang
- National Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Beijing, China
| | - A Gasser
- Centre of Experimental Medicine, Institute of Biochemistry and Molecular Biology I: Cellular Signal Transduction, University Medical Centre Hamburg-Eppendorf Hamburg, Germany
| | - R Fliegert
- Centre of Experimental Medicine, Institute of Biochemistry and Molecular Biology I: Cellular Signal Transduction, University Medical Centre Hamburg-Eppendorf Hamburg, Germany
| | - S Bruhn
- Centre of Experimental Medicine, Institute of Biochemistry and Molecular Biology I: Cellular Signal Transduction, University Medical Centre Hamburg-Eppendorf Hamburg, Germany
| | - A Flügel
- Department of Neuroimmunology, Max-Planck-Institute for Neurobiology Martinsried, Germany
| | - F E Lund
- Trudeau Institute Saranac Lake, NY, USA
| | - L-h Zhang
- National Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Beijing, China
| | - B V L Potter
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath Bath, UK
| | - A H Guse
- Centre of Experimental Medicine, Institute of Biochemistry and Molecular Biology I: Cellular Signal Transduction, University Medical Centre Hamburg-Eppendorf Hamburg, Germany
- Author for correspondence:
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Guse AH. Second messenger function and the structure-activity relationship of cyclic adenosine diphosphoribose (cADPR). FEBS J 2005; 272:4590-7. [PMID: 16156781 DOI: 10.1111/j.1742-4658.2005.04863.x] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cyclic ADP-ribose (cADPR) is a Ca2+ mobilizing second messenger found in various cell types, tissues and organisms. Receptor-mediated formation of cADPR may proceed via transmembrane shuttling of the substrate NAD and involvement of the ectoenzyme CD38, or via so far unidentified ADP-ribosyl cyclases located within the cytosol or in internal membranes. cADPR activates intracellular Ca2+ release via type 2 and 3 ryanodine receptors. The exact molecular mechanism, however, remains to be elucidated. Possibilities are the direct binding of cADPR to the ryanodine receptor or binding via a separate cADPR binding protein. In addition to Ca2+ release, cADPR also evokes Ca2+ entry. The underlying mechanism(s) may comprise activation of capacitative Ca2+ entry and/or activation of the cation channel TRPM2 in conjunction with adenosine diphosphoribose. The development of novel cADPR analogues revealed new insights into the structure-activity relationship. Substitution of either the northern ribose or both the northern and southern ribose resulted in much simpler molecules, which still retained significant biological activity.
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Affiliation(s)
- Andreas H Guse
- University Medical Center Hamburg-Eppendorf, Center of Experimental Medicine, Institute of Biochemistry and Molecular Biology I, Cellular Signal Transduction, Hamburg, Germany.
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