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Hevroni BL, Sayer AH, Blum E, Fischer B. Nucleoside-2',3'/3',5'-bis(thio)phosphate analogues are promising antioxidants acting mainly via Cu+/Fe2+ ion chelation. Inorg Chem 2014; 53:1594-605. [PMID: 24410662 DOI: 10.1021/ic402671q] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We synthesized a series of adenine/guanine 2',3'- or 3',5'-bisphosphate and -bisphosphorothioate analogues, 1-6, as potential Cu(+)/Fe(2+) chelators, with a view to apply them as biocompatible and water-soluble antioxidants. We found that electron paramagnetic resonance (EPR)-monitored inhibition of OH radicals production from H2O2, in an Fe(2+)-H2O2 system, by bisphosphate derivatives 1, 3, and 5 (IC50 = 36, 24, and 40 μM, respectively), was more effective than it was by ethylenediaminetetraacetic acid (EDTA), by a factor of 1.5, 2, and 1.4, respectively. Moreover, 2'-deoxyadenosine-3',5'-bisphosphate, 1, was 1.8- and 4.7-times more potent than adenosine 5'-monophosphate (AMP) and adenosine 5'-diphosphate (ADP), respectively. The bisphosphorothioate derivatives 2, 4, and 6 (IC50 = 92, 50, and 80 μM, respectively), exhibited a dual antioxidant activity, acting as both metal-ion chelators and radical scavengers [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assay data indicates IC50 = 50, 70, and 108 μM vs 27 μM for Trolox]. Only 2'-deoxyadenosine-3',5'-bisphosphorothioate, 2, exhibited good inhibition of Cu(+)-induced H2O2 decomposition (IC50 = 78 vs 224 μM for EDTA). Nucleoside-bisphosphorothioate analogues (2, 4, and 6) were weaker inhibitors than the corresponding bisphosphate analogues (1, 3, and 5), due to intramolecular oxidation under Fenton reaction conditions. (1)H- and (31)P NMR monitored Cu(+) titration of 2, showed that Cu(+) was coordinated by both 3',5'-bisphosphorothioate groups, as well as N7-nitrogen atom, while adenosine-2',3'-bisphosphorothioate, 6, coordinated Cu(+) only by 2',3'-bisphosphorothioate groups. In conclusion, an additional terminal phosphate group on AMP/guanosine 5'-monophosphate (GMP) resulted in Fe(2+)-selective chelators highly potent as Fenton reaction inhibitors.
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Conway SJ, Miller GJ. Biology-enabling inositol phosphates, phosphatidylinositol phosphates and derivatives. Nat Prod Rep 2007; 24:687-707. [PMID: 17653355 DOI: 10.1039/b407701f] [Citation(s) in RCA: 247] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review highlights inositol polyphosphate- and phosphatidylinositol-based small molecule probes that have advanced our understanding of intracellular signalling.
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Affiliation(s)
- Stuart J Conway
- EaStCHEM, School of Chemistry and Centre for Biomolecular Sciences, University of St Andrews, North Haugh, St Andrews, Fife, UK KY16 9ST
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Marecek JF, Prestwich GD. Synthesis of tritium-labelled enantiomers of myo-inositol 1,4,5-trisphosphate. J Labelled Comp Radiopharm 2006. [DOI: 10.1002/jlcr.2580270808] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Baudin G, Glänzer BI, Swaminathan KS, Vasella A. A Synthesis of 1D- and 1L-myo-Inositol 1,3,4,5,-Tetraphosphate. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19880710548] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Liu C, Potter BV. Synthesis of 3-Position-Modified Analogues of myo-Inositol 1,4,5-Trisphosphate, Tools for Investigation of the Polyphosphoinositide Pathway of Cellular Signaling. J Org Chem 1997; 62:8335-40. [PMID: 11671970 DOI: 10.1021/jo970926y] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Methods for the synthesis of 3-O-(carboxymethyl)- and 3-O-alkylated myo-inositol 1,4,5-trisphosphates in racemic form from myo-inositol have been devised. For DL-3-O-(carboxymethyl)-myo-inositol 1,4,5-trisphosphate, an analogue of myo-inositol 1,3,4,5-tetrakisphosphate, DL-3-O-allyl-2,6-di-O-benzyl-1-O-(p-methoxybenzyl)-4,5-O-isopropylidene-myo-inositol (14) was prepared from myo-inositol in seven steps. The triol DL-3-O-allyl-2,6-di-O-benzyl-myo-inositol (26), which was obtained after treatment of 14 with acid, was phosphitylated and the product oxidized to give the fully protected trisphosphate 27. The efficient oxidative cleavage of the 3-O-allyl ether of 27 in the presence of the cyanoethyl-protected phosphate triesters was achieved by treatment of 27 with NaIO(4)/RuCl(3).hydrate to afford the fully protected 3-O-(carboxymethyl) trisphosphate 28. After deblocking, DL-3-O-(carboxymethyl) trisphosphate 6 was obtained. For DL-3-O-alkylated myo-inositol 1,4,5-trisphosphate analogues, the fully protected 14 was isomerized to the cis-prop-1-enyl derivative 15. The propenyl group was removed to give DL-2,6-di-O-benzyl-1-O-(p-methoxybenzyl)-4,5-isopropylidene-myo-inositol (16). The 3-O-methyl ether 17, 3-O-ethyl ether 18, and 3-O-n-propyl ether 19 derivatives were synthesized by treatment of the anion of 16 with methyl iodide, ethyl iodide, or n-propyl iodide, respectively. Removal of the isopropylidene and p-methoxybenzyl groups afforded 3-O-alkylated triols 20, 21, or 22, which were phosphitylated and the products oxidized to give the respective fully protected 3-O-alkylated trisphosphates 23-25. Deprotection furnished 3-O-methyl- (3), 3-O-ethyl- (4), or 3-O-n-propyl-myo-inositol 1,4,5-trisphosphate (5). These compounds will be useful pharmacological tools to explore the interaction of myo-inositol 1,4,5-trisphosphate with its receptor and metabolic enzymes.
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Affiliation(s)
- C Liu
- Department of Medicinal Chemistry, School of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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Jenkins DJ, Riley AM, Potter BV. Chiral Cyclopentane-Based Mimics of D-myo-Inositol 1,4,5-Trisphosphate from D-Glucose. J Org Chem 1996; 61:7719-26. [PMID: 11667726 DOI: 10.1021/jo961158y] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two routes from D-glucose to chiral, ring-contracted analogs of the second messenger D-myo-inositol 1,4,5-trisphosphate are described. Methyl alpha-D-glucopyranoside was converted by an improved procedure into methyl 4,6-O-(p-methoxybenzylidene)-alpha-D-glucopyranoside (6) and thence into methyl 2-O-benzyl-3,4-bis-O-(p-methoxybenzyl)-alpha-D-gluco-hexodialdopyranoside (1,5) (14) in four steps. In the first ring-contraction method 14 was converted into methyl 2-O-benzyl-6,7-dideoxy-3,4-bis-O-(p-methoxybenzyl)-alpha-D-gluco-hept-6-enopyranoside (1,5) (15), which on sequential treatment with Cp(2)Zr(n-Bu)(2) followed by BF(3).Et(2)O afforded a mixture of (1R,2S,3S,4R,5S)-3-(benzyloxy)-4-hydroxy-1,2-bis[(p-methoxybenzyl)oxy]-5-vinylcyclopentane (16) and its 4S,5R diastereoisomer 17. Removal of the p-methoxybenzyl groups of 16 and subsequent phosphorylation and deprotection afforded the first target compound, (1R,2R,3S,4R,5S)-3-hydroxy-1,2,4-tris(phosphonooxy)-5-vinylcyclopentane (3). In the second route, intermediate 14 was subjected to SmI(2)-mediated ring contraction to give (1R,2S,3S,4R,5S)-3-(benzyloxy)-4-hydroxy-5-(hydroxymethyl)-1,2-bis[(p-methoxybenzyl)oxy]cyclopentane (20). Benzylation of 20 provided (1R,2S,3S,4R,5S)-3-(benzyloxy)-6-[(benzyloxy)methyl]-4-hydroxy-1,2-bis[(p-methoxybenzyl)oxy]cyclopentane (22) and (1R,2S,3S,4R,5S)-3,4-bis(benzyloxy)-5-(hydroxymethyl)-1,2-bis[(p-methoxybenzyl)oxy]cyclopentane (21), which were elaborated to the target trisphosphates (1R,2R,3S,4R,5S)-3-hydroxy-5-(hydroxymethyl)-1,2,4-tris(phosphonooxy)cyclopentane (4) and (1R,2S,3R,4R,5S)-1,2-dihydroxy-3,4-bis(phosphonooxy)-5-[(phosphonooxy)methyl]cyclopentane (5), respectively. Both 3 and 4 mobilized intracellular Ca(2+), but 4 was only a few fold less potent than D-myo-inositol 1,4,5-trisphosphate, demonstrating that effective mimics can be designed that do not bear a six-membered ring.
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Affiliation(s)
- D J Jenkins
- Department of Medicinal Chemistry, School of Pharmacy & Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, Somerset, U.K
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Potter BVL, Lampe D. Die Chemie der Inositlipid-vermittelten zellulären Signalübertragung. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951071804] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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8
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Mills SJ, Riley AM, Murphy CT, Bullock AJ, Westwick J, Potter BVL. Myo-inositol 1,4,6-trisphosphorothioate and myo-inositol 1,3,4-trisphosphorothioate: New synthetic Ca2+-mobilising partial agonists at the inositol 1,4,5-trisphosphate receptor. Bioorg Med Chem Lett 1995. [DOI: 10.1016/0960-894x(95)00012-i] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Liu C, Potter BV. Synthesis of (±)-3-O-alkylated Myo-inositol 1,4,5-trisphosphate analogues as potent receptor ligands and enzyme inhibitors. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)74432-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Liu C, Potter B. Synthesis of myo-inositol 1,4,5-trisphosphate 3-phosphorothioate as an inhibitor of myo-inositol 1,3,4,5-tetrakisphosphate 3-phosphatase. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)76770-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mills SJ, Al-Hafidh J, Westwick J, Potter BV. Myo-inositol 1,4,6-trisphosphate: A new synthetic Ca2+-mobilising inositol phosphate. Bioorg Med Chem Lett 1993. [DOI: 10.1016/s0960-894x(01)80723-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Potter BVL. Synthetic Analogues of the Second Messenger D-MYOInositol 1,4,5 Trisphosphate as Receptor Agonists and Inhibitors of the Enzymes of the Polyphosphoinositide Pathway of Signal Transduction. PHOSPHORUS SULFUR 1993. [DOI: 10.1080/10426509308032379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Beaucage SL, Iyer RP. The synthesis of specific ribonucleotides and unrelated phosphorylated biomolecules by the phosphoramidite method. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)81543-x] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Affiliation(s)
- B V Potter
- School of Pharmacy and Pharmacology, University of Bath, United Kingdom
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Synthesis of (±)-myo-inositol 1,4,5-trisphosphate and the novel analogue (±)-myo-inositol 1,4-bisphosphate 5-phosphorothioate. Carbohydr Res 1992. [DOI: 10.1016/0008-6215(92)85047-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Desai T, Fernandez-Mayoralas A, Gigg J, Gigg R, Payne S. The preparation of phosphorylated intermediates for the synthesis of racemic and chiral myo-inositol 1,4,5-trisphosphate and its phosphorothioate analogues. Carbohydr Res 1992. [DOI: 10.1016/0008-6215(92)85046-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Noble NJ, Dubreuil D, Potter B. Total synthesis of myo-inositol-1-phosphate-4,5-pyrophosphate, a novel second messenger analogue, via myo-inositol-1-phosphate-4,5-bisphosphorothioate. Bioorg Med Chem Lett 1992. [DOI: 10.1016/s0960-894x(00)80172-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Safrany ST, Sawyer DA, Nahorski SR, Potter BV. Synthetic D- and L-enantiomers of 2,2-difluoro-2-deoxy-myo-inositol 1,4,5-trisphosphate interact differently with myo-inositol 1,4,5-trisphosphate binding proteins: identification of a potent small molecule 3-kinase inhibitor. Chirality 1992; 4:415-22. [PMID: 1334423 DOI: 10.1002/chir.530040703] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The ability of two enantiomeric fluoro-analogues of D-myo-inositol 1,4,5-trisphosphate [Ins(1,4,5)P3] to mobilize intracellular Ca2+ stores in SH-SY5Y neuroblastoma cells has been investigated. (-)-D-2,2-difluoro-2-deoxy-myo-Ins(1,4,5)P3 [D-2,2-F2-Ins(1,4,5)P3] was a full agonist [EC50 0.21 microM] and slightly less potent than D-Ins(1,4,5)P3 [EC50 0.13 microM]. (+)-L-2,2-F2Ins(1,4,5)P3 was a very poor agonist, confirming the stereospecificity of the Ins(1,4,5)P3 receptor. D-2,2-F2-Ins(1,4,5)P3 mobilized Ca2+ with broadly similar kinetics to Ins(1,4,5)P3 and was a substrate for Ins(1,4,5)P3 3-kinase inhibiting Ins(1,4,5)P3 phosphorylation (apparent Ki = 10.2 microM) but was recognised less well than Ins(1,4,5)P3. L-2,2-F2-Ins(1,4,5)P3 was a potent competitive inhibitor of 3-kinase (Ki = 11.9 microM). Whereas D-2,2-F2-Ins(1,4,5)P3 was a good substrate for Ins(1,4,5)P3 5-phosphatase, L-2,2-F2Ins(1,4,5)P3 was a relatively potent inhibitor (Ki = 19.0 microM).
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Affiliation(s)
- S T Safrany
- Department of Pharmacology and Therapeutics, University of Leicester, United Kingdom
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Sawyer DA, Potter BVL. Total synthesis of L-2,2-difluoro-2-deoxy-MYO-inositol 1,4,5-trisphosphate, a potent inhibitor of the enzymes of d-MYO-inositol 1,4,5-trisphosphate metabolism. Bioorg Med Chem Lett 1991. [DOI: 10.1016/s0960-894x(01)81052-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Safrany ST, Sawyer D, Wojcikiewicz RJ, Nahorski SR, Potter BV. Ca2(+)-mobilising properties of synthetic fluoro-analogues of myo-inositol 1,4,5-trisphosphate and their interaction with myo-inositol 1,4,5-trisphosphate 3-kinase and 5-phosphatase. FEBS Lett 1990; 276:91-4. [PMID: 2176165 DOI: 10.1016/0014-5793(90)80515-k] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The ability of two fluoro-analogues of D-myo-inositol 1,4,5-trisphosphate (Ins(1,4,5)P3) to mobilize intracellular Ca2+ stores in SH-SY5Y neuroblastoma cells has been investigated. DL-2-deoxy-2-fluoro-scyllo-Ins(1,4,5)P3 (2F-Ins(1,4,5)P3) and DL-2,2-difluoro-2-deoxy-myo-Ins(1,4,5)P3 (2,2-F2-Ins(1,4,5)P3) were full agonists (EC50s 0.77 and 0.41 microM respectively) and slightly less potent than D-Ins(1,4,5)P3 (EC50 0.13 microM), indicating that the axial 2-hydroxyl group of Ins(1,4,5)P3 is relatively unimportant in receptor binding and stimulation of Ca2+ release. Both analogues mobilized Ca2+ with broadly similar kinetics and were substrates for Ins(1,4,5)P3 3-kinase but, qualitatively, were slightly poorer than Ins(1,4,5)P3. 2F-Ins(1,4,5)P3 was a weak substrate for Ins(1,4,5)P3 5-phosphatase but 2,2-F2-Ins(1,4,5)P3 was apparently not hydrolysed by this enzyme, although it inhibited its activity potently (Ki = 26 microM).
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Affiliation(s)
- S T Safrany
- Department of Pharmacology, University of Leicester, UK
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Wojcikiewicz RJ, Cooke AM, Potter BV, Nahorski SR. Inhibition of inositol 1,4,5-trisphosphate metabolism in permeabilised SH-SY5Y human neuroblastoma cells by a phosphorothioate-containing analogue of inositol 1,4,5-trisphosphate. EUROPEAN JOURNAL OF BIOCHEMISTRY 1990; 192:459-67. [PMID: 2209601 DOI: 10.1111/j.1432-1033.1990.tb19248.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Electrically permeabilised [3H]inositol-labelled SH-SY5Y human neuroblastoma cells were employed to examine the effects of two synthetic, phosphatase-resistant analogues of inositol 1,4,5-trisphosphate [Ins(1,4,5)P3] on the metabolism of cell membrane-derived [3H]Ins(1,4,5)P3 or exogenous [5-32P]Ins(1,4,4)P3. Incubation of permeabilised SH-SY5Y cells for 5 min at 37 degrees C with carbachol and guanosine 5'-[gamma-thio]triphosphate caused a decrease in [3H]phosphoinositol phospholipid levels and an increase in [3H]inositol phosphate accumulation with inositol 4-phosphate, inositol 1,4-bisphosphate, Ins(1,4,5)P3 and inositol 1,3,4,5-tetrakisphosphate comprising approximately 79%, 16%, 3% and 2%, respectively, of the increase. Inositol 1-phosphate levels did not increase upon stimulation, nor was inositol 4-phosphate converted rapidly to inositol. In parallel incubations, the analogues, DL-inositol 1,4,5-trisphosphorothioate (DL-InsP3S3) and DL-inositol 1,4-bisphosphate 5-phosphorothioate (DL-InsP3S), and synthetic racemic Ins(1,4,5)P3 (DL-InsP3), altered the profile of the [3H]inositol phosphates recovered and led, at millimolar concentrations, to a 10-15-fold increase in [3H]Ins(1,4,5)P3. The extent of inhibition of [3H]Ins(1,4,5)P3 metabolism was, however, greatest in the presence of synthetic D-Ins(1,4,5)P3 (greater than or equal to 5 mM), when [3H]Ins(1,4,5)P3 comprised approximately 50% of the increase in total [3H]inositol phosphates. Thus, under these conditions, at least 50% of [3H]inositol phosphates were derived from [3H]phosphatidylinositol 4,5-bisphosphate. [32P]Pi release from exogenous [5-32P]Ins(1,4,5)P3 was also inhibited by DL-InsP3S3, DL-InsP3S and DL-InsP3, with half-maximal inhibition at approximately 50 microM, 160 microM and 240 microM respectively. These actions were approximately ten times more potent than the effects of these compounds on [3H]inositol phosphate accumulation, indicating that homogenous mixing of exogenous and cell-membrane-derived Ins(1,4,5)P3 does not occur. These findings indicate that DL-InsP3S3 and DL-InsP3S inhibit Ins(1,4,5)P3 5-phosphatase. In contrast, the effects of synthetic DL-InsP3 and D-Ins(1,4,5)P3 are due to isotopic dilution. Whilst DL-InsP3S3 was the most potent inhibitor of dephosphorylation of exogenous or cell-membrane-derived Ins(1,4,5)P3, it was the weakest inhibitor of 3-kinase-catalysed Ins(1,4,5)P3 phosphorylation. Similarly, although approximately 50 times less potent than DL-InsP3S3, 2,3-diphosphoglycerate inhibited Ins(1,4,5)P3 5-phosphatase activity and was apparently without effect of Ins(1,4,5)P3 3-kinase activity.(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- R J Wojcikiewicz
- Department of Pharmacology and Therapeutics, University of Leicester, England
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Cooke AM, James L, Nahorski SR, Potter BVL. Paosphorothioate Analogues of Inositol Phosphates. PHOSPHORUS SULFUR 1990. [DOI: 10.1080/10426509008040672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Allan M. Cooke
- a Departments of Chemistry , Leicester University , Leicester , LE1 7RH , U.K
| | - Leroy James
- b Departments of Pharmacology , Leicester University , Leicester , LE1 7RH , U.K
| | - Stefan R. Nahorski
- b Departments of Pharmacology , Leicester University , Leicester , LE1 7RH , U.K
| | - Barry V. L. Potter
- a Departments of Chemistry , Leicester University , Leicester , LE1 7RH , U.K
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Noda N, Keenan RW. Phosphatidyl inositol isopropylidene derivatives: synthesis, characterizaton and use as synthetic intermediates. Chem Phys Lipids 1990. [DOI: 10.1016/0009-3084(90)90133-c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Carless HA, Busia K. Total synthesis of -inositol 2,3,5-trisphosphate: A -inositol 1,4,5-trisphosphate analogue from benzene photo-oxidation. Tetrahedron Lett 1990. [DOI: 10.1016/0040-4039(90)80032-h] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Ley SV, Parra M, Redgrave AJ, Sternfeld F. Microbial oxidation in synthesis: preparation of myo-inositol phosphates and related cyclitol derivatives from benzene. Tetrahedron 1990. [DOI: 10.1016/s0040-4020(01)85605-2] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Watanabe Y, Komoda Y, Ebisuya K, Ozaki S. An efficient phosphorylation method using a new phosphitylating agent, 2-diethylamino-1,3,2-benzodioxaphosphepane. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)94385-5] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cooke AM, Nahorski SR, Potter BV. myo-inositol 1,4,5-trisphosphorothioate is a potent competitive inhibitor of human erythrocyte 5-phosphatase. FEBS Lett 1989; 242:373-7. [PMID: 2536622 DOI: 10.1016/0014-5793(89)80504-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The effect of the myo-inositol 1,4,5-trisphosphate (IP3) analogue, myo-inositol 1,4,5-trisphosphorothioate (IPS3) on the dephosphorylation of D-5-[32P]IP3 by the 5-phosphatase from human erythrocyte membranes has been investigated. DL-IPS3 was found to act as a competitive inhibitor with a Ki of 6 microM, making it the most potent inhibitor currently available for this enzyme. L-IP3 inhibited the enzyme with a Ki of 124 microM and was more potent than D-2,3-diphosphoglycerate (Ki 978 microM).
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Affiliation(s)
- A M Cooke
- Department of Chemistry, University of Leicester, England
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Ley SV, Parra M, Redgrave AJ, Sternfeld F, Vidal A. Microbial oxidation in synthesis: Preparation of 6-deoxy cyclitol analogues of myo-inositol 1,4,5-trisphosphate from benzene. Tetrahedron Lett 1989. [DOI: 10.1016/s0040-4039(00)99439-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Carless HA, Billinge JR, Oak OZ. Photochemical routes from arenes to inositol intermediates: The photo-oxidation of substituted cis-cyclohexa-3,5-diene-1,2-diols. Tetrahedron Lett 1989. [DOI: 10.1016/s0040-4039(00)99416-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Vacca JP, deSolms S, R. Huff J, Billington DC, Baker R, Kulagowski JJ, Mawer IM. The total synthesis of myo-inositol polyphosphates. Tetrahedron 1989. [DOI: 10.1016/s0040-4020(01)89510-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kozikowski AP, Fauq AH, Rusnak JM. A simplified route to the phosphatidylinositol cascade inhibitor --- (-)-1L-1-deoxy-1-fluoro-Myo-inositol. Tetrahedron Lett 1989. [DOI: 10.1016/s0040-4039(00)99246-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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COMMUNICATIONS. Br J Pharmacol 1988. [DOI: 10.1111/j.1476-5381.1988.tb16609.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Taylor CW, Berridge MJ, Brown KD, Cooke AM, Potter BV. DL-myo-inositol 1,4,5-trisphosphorothioate mobilizes intracellular calcium in Swiss 3T3 cells and Xenopus oocytes. Biochem Biophys Res Commun 1988; 150:626-32. [PMID: 3342041 DOI: 10.1016/0006-291x(88)90438-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The initial water-soluble product of receptor-stimulate polyphosphoinositide hydrolysis, D-myo-inositol 1,4,5-trisphosphate is now accepted as the second messenger that stimulates release of Ca2+ from intracellular pools. We report here the first examples of Ca2+ release by a novel phosphatase-resistant inositol trisphosphate analogue, DL-myo-inositol 1,4,5-trisphosphorothioate, in Swiss 3T3 cells and Xenopus oocytes. L-myo-inositol 1,4,5-trisphosphate was inactive in the latter system.
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Affiliation(s)
- C W Taylor
- AFRC Unit of Insect Neurophysiology and Pharmacology, Department of Zoology, Cambridge, UK
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Watanabe Y, Ogasawara T, Nakahira H, Matsuki T, Ozaki S. A versatile intermediate, d-4,5-bis(dibenzyl phosphoryl) -myo-inositol derivative for synthesis of inositol phosphates. Synthesis of 1,2-cyclic-4,5-,1,4,5-, and 2,4,5-trisphosphate. Tetrahedron Lett 1988. [DOI: 10.1016/s0040-4039(00)80731-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yu KL, Fraser-Reid B. A novel reagent for the synthesis of -inositol phosphates: ,-diisopropyl dibenzyl phosphoramidite. Tetrahedron Lett 1988. [DOI: 10.1016/0040-4039(88)85313-9] [Citation(s) in RCA: 121] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Microbial oxidation in synthesis: Preparation from benzene of the cellular secondary messenger myo-inositol-1,4,5-trisphosphate (IP3) and related derivatives. Tetrahedron Lett 1988. [DOI: 10.1016/s0040-4039(00)80744-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Willcocks AL, Cooke AM, Potter BV, Nahorski SR. Stereospecific recognition sites for [3H]inositol(1,4,5)-triphosphate in particulate preparations of rat cerebellum. Biochem Biophys Res Commun 1987; 146:1071-8. [PMID: 3039991 DOI: 10.1016/0006-291x(87)90756-x] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A very high density of stereospecific binding sites for inositol-(1,4,5)P3 have been identified in rat cerebellar membranes using [3H]inositol-(1,4,5)P3 and a rapid centrifugation step to separate free and bound ligand. Binding was shown to be rapid and reversible and of relatively high affinity (KD 23 nM). Incubations were carried out at 4 degrees and under these conditions HPLC analysis demonstrated that there was no significant metabolism of [3H]-(1,4,5)P3 in the presence or absence of ATP over 15 min. The specificity of the site has been carefully evaluated using both natural and novel synthetic inositol phosphates. The stereospecificity is very marked with the D-, DL- and L-isomers of Ins(1,4,5)P3 showing a 1:4:2000 ratio of affinity for the binding site. D-Ins(2,4,5)P3 was the only other phosphate to show relatively high affinity (KD 1500 nM). HPLC-pure Ins(1,3,4)P3 and Ins(1,3,4,5)P4 were substantially weaker and Ins(1,4)P2, Ins-2-P1, Ins-1-P1, Ins(1,2)-cyclic P1 and inositol were totally inactive at concentrations less than 50 microM. These data are discussed in relation to a putative receptor on the endoplasmic reticulum by which Ins(1,4,5)P3 can initiate the release of bound Ca2+.
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