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Ghosh S, Andreana PR. Synthesis of an Aminooxy Derivative of the Trisaccharide Globotriose Gb3. J Carbohydr Chem 2014; 33:381-394. [PMID: 25382930 DOI: 10.1080/07328303.2014.925913] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The synthesis of α-aminooxy trisaccharide moiety [α-d-Gal-(1,4)-β-d-Gal-(1,4)-β-d-Glc-α-aminooxy], related to the cell surface globotriaosylceramide (Gb3) receptor of the B subunit of the AB5 Shiga toxin of Shigella dysenteriae, has been synthesized for the first time in 11 steps with a 15% overall isolated yield. A highlight of this work entails utilizing chemically compatible synthetic transformations, including those related to glycosylation, incorporative of the succinimidyl moiety as a precursor to the aminooxy Gb3 derivative. The fully deprotected trisaccharide aminooxy compound was reacted with a carbonyl compound leading to oxime formation in quantitative yield underscoring the importance for future glyco-conjugations.
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Affiliation(s)
- Samir Ghosh
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft St, Toledo, OH 43606
| | - Peter R Andreana
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft St, Toledo, OH 43606
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2
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Nagatsuka T, Uzawa H, Sato K, Ohsawa I, Seto Y, Nishida Y. Glycotechnology for decontamination of biological agents: a model study using ricin and biotin-tagged synthetic glycopolymers. ACS APPLIED MATERIALS & INTERFACES 2012; 4:832-837. [PMID: 22214533 DOI: 10.1021/am201493q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Two types of biotin-tagged glycopolymers carrying lactose or glucose in clusters along the polyacrylamide backbone were prepared and subjected to decontamination analyses with the plant toxin ricin. A buffer solution containing the toxin was treated with one glycopolymer followed by streptavidin-magnetic particles. Supernatant solutions were analyzed with surface plasmon resonance and capillary electrophoresis, and revealed that the lactose glycopolymer "captured" this toxin more effectively than the glucose polymer. Free toxin was not detectable in the supernatant after treatment with the glycopolymer and magnetic particles; >99% decontamination was achieved for this potentially fatal biological toxin.
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Affiliation(s)
- Takehiro Nagatsuka
- Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba 305-8565, Japan
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3
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Ortega P, Serramía MJ, Muñoz-Fernández MA, Javier de la Mata F, Gómez R. Globular carbosilane dendrimers with mannose groups at the periphery: synthesis, characterization and toxicity in dendritic cells. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.02.097] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Nagatsuka T, Uzawa H, Ohsawa I, Seto Y, Nishida Y. Use of lactose against the deadly biological toxin ricin. ACS APPLIED MATERIALS & INTERFACES 2010; 2:1081-5. [PMID: 20369893 DOI: 10.1021/am900846r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Developing a technology for detecting and decontaminating biological toxins is needed. Ricin from Ricinus communis is a highly poisonous toxin; it was formerly used for an assassination in London and in postal attacks in the United States. Ricin is readily available from castor beans and could be used as a biological agent. We propose using glycotechnology against the illegal use of ricin. Lactose (a natural ligand of this toxin) was incorporated into polyacrylamide-based glycopolymers at variable sugar densities (18-100%) and evaluated with surface plasmon resonance (SPR) spectroscopy and the real agent, ricin. Glycopolymers (18-65% lactose densities) effectively interfered with the toxin-lactoside adhesion event (>99% efficiency within 20 min). This supported the notion of using the mammary sugar lactose against a deadly biological toxin.
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Affiliation(s)
- Takehiro Nagatsuka
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, 305-8565, Japan
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5
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Miyachi A, Dohi H, Neri P, Mori H, Uzawa H, Seto Y, Nishida Y. Multivalent Galacto-trehaloses: Design, Synthesis, and Biological Evaluation under the Concept of Carbohydrate Modules. Biomacromolecules 2009; 10:1846-53. [DOI: 10.1021/bm900283x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akira Miyachi
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan, Faculty of Biomolecular Chemistry, Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan, Department of Public Health Pharmacy, Gifu Pharmaceutical University, Gifu 502-8585, Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8586, Japan, and National Research Institute of Police Science (NRIPS), 6-3-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Hirofumi Dohi
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan, Faculty of Biomolecular Chemistry, Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan, Department of Public Health Pharmacy, Gifu Pharmaceutical University, Gifu 502-8585, Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8586, Japan, and National Research Institute of Police Science (NRIPS), 6-3-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Paola Neri
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan, Faculty of Biomolecular Chemistry, Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan, Department of Public Health Pharmacy, Gifu Pharmaceutical University, Gifu 502-8585, Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8586, Japan, and National Research Institute of Police Science (NRIPS), 6-3-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Hiroshi Mori
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan, Faculty of Biomolecular Chemistry, Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan, Department of Public Health Pharmacy, Gifu Pharmaceutical University, Gifu 502-8585, Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8586, Japan, and National Research Institute of Police Science (NRIPS), 6-3-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Hirotaka Uzawa
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan, Faculty of Biomolecular Chemistry, Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan, Department of Public Health Pharmacy, Gifu Pharmaceutical University, Gifu 502-8585, Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8586, Japan, and National Research Institute of Police Science (NRIPS), 6-3-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Yasuo Seto
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan, Faculty of Biomolecular Chemistry, Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan, Department of Public Health Pharmacy, Gifu Pharmaceutical University, Gifu 502-8585, Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8586, Japan, and National Research Institute of Police Science (NRIPS), 6-3-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Yoshihiro Nishida
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan, Faculty of Biomolecular Chemistry, Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan, Department of Public Health Pharmacy, Gifu Pharmaceutical University, Gifu 502-8585, Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8586, Japan, and National Research Institute of Police Science (NRIPS), 6-3-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
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6
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Zhang W, Wang J, Li J, Yu L, Wang PG. Large Scale Synthesis of A Derivative of An α-Galactosyl Trisaccharide Epitope Involved in the Hyperacute Rejection of Xenotransplantation. J Carbohydr Chem 2008. [DOI: 10.1080/07328309908544050] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Wei Zhang
- a Department of Chemistry , Wayne State University , Detroit, MI 48202, U.S.A
| | - Jianqiang Wang
- a Department of Chemistry , Wayne State University , Detroit, MI 48202, U.S.A
| | - Jun Li
- a Department of Chemistry , Wayne State University , Detroit, MI 48202, U.S.A
| | - Libing Yu
- a Department of Chemistry , Wayne State University , Detroit, MI 48202, U.S.A
| | - Peng George Wang
- a Department of Chemistry , Wayne State University , Detroit, MI 48202, U.S.A
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7
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Nishida Y, Takamori Y, Matsuda K, Ohrui H, Yamada T, Kobayashi K. Synthesis of Artificial Glycoconjugate Polymers Carrying 6-O-Phosphocholine α-D-Glucopyranoside, Biologically Active Segment of Main Cell Membrane Glycolipids ofMycoplasma Fermentas. J Carbohydr Chem 2008. [DOI: 10.1080/07328309908544048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yoshihiro Nishida
- a Department of Molecular Design and Engineering , Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- b Virology and Glycobiology Division, National Cancer Research Center Institute , Tsukiji 5-1-1, Chuo-ku, Tokyo 104-0045, Japan
| | - Yusuke Takamori
- a Department of Molecular Design and Engineering , Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- b Virology and Glycobiology Division, National Cancer Research Center Institute , Tsukiji 5-1-1, Chuo-ku, Tokyo 104-0045, Japan
| | - Kazuhiro Matsuda
- a Department of Molecular Design and Engineering , Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- b Virology and Glycobiology Division, National Cancer Research Center Institute , Tsukiji 5-1-1, Chuo-ku, Tokyo 104-0045, Japan
| | - Hiroshi Ohrui
- a Department of Molecular Design and Engineering , Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- b Virology and Glycobiology Division, National Cancer Research Center Institute , Tsukiji 5-1-1, Chuo-ku, Tokyo 104-0045, Japan
| | - Takeshi Yamada
- a Department of Molecular Design and Engineering , Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- b Virology and Glycobiology Division, National Cancer Research Center Institute , Tsukiji 5-1-1, Chuo-ku, Tokyo 104-0045, Japan
| | - Kazukiyo Kobayashi
- a Department of Molecular Design and Engineering , Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- b Virology and Glycobiology Division, National Cancer Research Center Institute , Tsukiji 5-1-1, Chuo-ku, Tokyo 104-0045, Japan
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8
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Uzawa H, Ito H, Neri P, Mori H, Nishida Y. Glycochips from Polyanionic Glycopolymers as Tools for Detecting Shiga Toxins. Chembiochem 2007; 8:2117-24. [DOI: 10.1002/cbic.200700439] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Syntheses and Vero toxin-binding activities of carbosilane dendrimers periphery-functionalized with galabiose. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.03.042] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Chen Q, Yang F, Du Y. Synthesis of a C3-symmetric (1→6)-N-acetyl-β-d-glucosamine octadecasaccharide using click chemistry. Carbohydr Res 2005; 340:2476-82. [PMID: 16169535 DOI: 10.1016/j.carres.2005.08.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2005] [Accepted: 08/22/2005] [Indexed: 11/18/2022]
Abstract
A C3-symmetric (1-->6)-N-acetyl-beta-D-glucosamine octadecasaccharide was convergently synthesized on the basis of a copper(I)-catalyzed 1,3-dipolar cycloaddition reaction of azide and alkyne. The target octadecasaccharide showed good antitumor activity against H22 in the preliminary mice tests.
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Affiliation(s)
- Qi Chen
- The State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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11
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Shingu Y, Miyachi A, Miura Y, Kobayashi K, Nishida Y. One-pot α-glycosylation pathway via the generation in situ of α-glycopyranosyl imidates in N,N-dimethylformamide. Carbohydr Res 2005; 340:2236-44. [PMID: 16098494 DOI: 10.1016/j.carres.2005.07.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2005] [Accepted: 07/13/2005] [Indexed: 11/17/2022]
Abstract
Divergent pathways are disclosed in the activation of 2-O-benzyl-1-hydroxy sugars by a reagent combination of CBr4 and Ph3P, all of which afford one-pot alpha-glycosylation methods. When this reagent is used in CH2Cl2, the 1-hydroxy sugar is converted to the alpha-glycosyl bromide in a conventional way and leads to the one-pot alpha-glycosylation method based on a halide ion-catalytic mechanism. In either DMF or a mixture of DMF and CHCl3, however, alternative alpha-glycosyl species are generated. From the 1H and 13C NMR study of the products, as well as the reactions using Vilsmeier reagents [(CH3)2N+=CHX]X- (X=Br and Cl), these were identified as cationic alpha-glycopyranosyl imidates having either Br- or Cl- counter ion. The cationic alpha-glycosyl imidate (Br-), derived specifically in the presence of DMF, is more reactive than the alpha-glycosyl bromide and thus is responsible for the accelerated one-pot alpha-glycosylation. The one-pot alpha-glycosylation methodology performed in DMF was assessed also with different types of acceptor substrates including tertiary alcohols and an anomeric mixture of 1-OH sugars.
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Affiliation(s)
- Yuko Shingu
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
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12
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Uzawa H, Ito H, Izumi M, Tokuhisa H, Taguchi K, Minoura N. Synthesis of polyanionic glycopolymers for the facile assembly of glycosyl arrays. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.03.102] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Kamath VP, Yeske RE, Gregson JM, Ratcliffe RM, Fang YR, Palcic MM. Large-scale chemical and chemo-enzymatic synthesis of a spacer-containing Pk-trisaccharide. Carbohydr Res 2004; 339:1141-6. [PMID: 15063203 DOI: 10.1016/j.carres.2003.12.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2003] [Accepted: 12/26/2003] [Indexed: 10/26/2022]
Abstract
The Pk-trisaccharide, linked to a solid carrier, is a potential agent for neutralization of shiga-like toxin in the gastrointestinal tract. Two approaches to the multigram-scale synthesis of a linkable Pk-trisaccharide derivative were therefore investigated. A four-step chemical synthesis yielded 8-methoxycarbonyloctyl beta-lactoside in 75% yield from lactose. Further conversion of this derivative through either multistep organic synthesis or one-step enzymatic galactosylation with UDP-galactose and recombinant alpha-1,4-galactosyltransferase gave the Pk-trisaccharide derivative 8-methoxycarbonyloctyl alpha-D-galactopyranosyl-(1-->4)-beta-D-galactopyranosyl-(1-->4)-beta-D-glucopyranoside in 25% and 68% overall yields from commercial lactose, respectively.
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Affiliation(s)
- Vivekanand P Kamath
- Department of Research and Process Development, SYNSORB Biotech Inc., 201, 1204 Kensington Road Calgary, Canada AB T2E 6J7
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14
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Nishida Y, Tsurumi T, Sasaki K, Watanabe K, Dohi H, Kobayashi K. Design and Synthesis of C3-Symmetric LewisX Antigen. Org Lett 2003; 5:3775-8. [PMID: 14535707 DOI: 10.1021/ol0351293] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[structure: see text] C(3)-Symmetric glycoconjugates carrying three equivalent Lewis(X) antigens or beta-lactosides were synthesized from p-nitrophenyl glycosides and trimesic acid via regio- and stereocontrolled glycosylation reactions. An (1)H NMR study has shown that the C(3)-symmetric glycoconjugates soluble in water provide useful probes to investigate the Ca(2+)-dependent Lewis(X)-Lewis(X) association.
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Affiliation(s)
- Yoshihiro Nishida
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan.
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15
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Shingu Y, Nishida Y, Dohi H, Kobayashi K. An easy access to halide ion-catalytic alpha-glycosylation using carbon tetrabromide and triphenylphosphine as multifunctional reagents. Org Biomol Chem 2003; 1:2518-21. [PMID: 12956070 DOI: 10.1039/b303984f] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of a 2-O-benzyl-1-hydroxy sugar with CBr4 and Ph3P generates a glycosyl bromide in situ, which is coupled with an acceptor alcohol in the presence of N,N-tetramethylurea to afford an alpha-glycosyl product virtually quantitatively. In a proposed pathway, the reagent combination plays multiple roles such as the generation of a glycosyl donor, the activation of glycosylation, and the dehydration of the reaction system. These roles allow a simple alpha-glycosylation to be performed without special attention to dehydration. Various alpha-glycosyl (D-gluco-, D-galacto- and L-fuco-) products including glycosyl glycerols and cholesterols have been prepared with this method.
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Affiliation(s)
- Yuko Shingu
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furou-chou, Chikusa-ku, Nagoya, 464-8603, Japan
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16
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Uzawa H, Nishida Y, Sasaki K, Minoura N, Kobayashi K. Synthetic potential of molluscan sulfatases for the library synthesis of regioselectively O-sulfonated D-galacto-sugars. Chembiochem 2003; 4:640-7. [PMID: 12851934 DOI: 10.1002/cbic.200300616] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The substrate specificities of three molluscan sulfatases (E.C. 3.1.6.1; snail, abalone, and limpet origins) were investigated with assorted p-nitrophenyl (pNP) di-O-sulfonated beta-D-galactopyranosides and beta-lactosides [3,6-SO(3) Gal (1), 3',6'-SO(3) Lac (2), 4, 6SO(3) Gal (3), 2,6-SO(3) Gal (4), 3,4-SO(3) Gal (5), and 3,6-SO(3) GalNAc (6); Ac, acetyl; Gal, galactose; Lac, lactose] together with mono-O-sulfonated beta-D-galactopyranoside [pNP 3SO(3)-Gal (7)] and tri-O-sulfonated alpha-D-galactopyranoside [2,3,6-SO(3)-alpha-Gal (11)]. Some notable differences between the substrate specificity of the three sulfatases were disclosed; snail sulfatase hydrolyzed the 3O- and 2O-sulfo groups of 1 and 4, respectively, to afford 6SO(3) Gal (9) in high yields, while the abalone enzyme did not act on 4. Only the limpet enzyme could cleave the 3O-sulfo groups of 7 to give pNP beta-galactoside. In contrast, every enzyme could utilize 11 as a good substrate to afford a mixture of 6SO(3)-alpha-Gal (13) and 2,6-SO(3) alpha-Gal (12). None of the enzymes could cleave the O-sulfo groups of 5 and 6, which indicates that a primary 6O-sulfo group tends to promote the enzymatic hydrolysis of O-sulfo groups at the secondary positions.
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Affiliation(s)
- Hirotaka Uzawa
- Laboratory of Advanced Bioelectronics, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 11-1 Higashi, Tsukuba 305-8565, Japan.
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17
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Miura T, Inazu T. Rapid synthesis of oligosaccharide moieties of globotriaosylceramide using fluorous protective group. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)00091-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Uzawa H, Zeng X, Minoura N. Synthesis of 6'-sulfodisaccharides by beta-N-acetylhexosaminidase-catalyzed transglycosylation. Chem Commun (Camb) 2003:100-1. [PMID: 12610985 DOI: 10.1039/b209893h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Presulfated N-acetylglucosaminyl donor (pNP beta-D-6-SO3-GlcNAc) was applied for the synthesis of sulfosugars using the beta-N-acetylhexosaminidase-catalyzed transglycosylation, to afford the critically stereocontrolled sulfodisaccharides carrying the 6-sulfo GlcNAc residue at the non-reducing sides in one step.
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Affiliation(s)
- Hirotaka Uzawa
- Laboratory of Advanced Bioelectronics, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Japan.
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Dohi H, Nishida Y, Takeda T, Kobayashi K. Convenient use of non-malodorous thioglycosyl donors for the assembly of multivalent globo- and isoglobosyl trisaccharides. Carbohydr Res 2002; 337:983-9. [PMID: 12039538 DOI: 10.1016/s0008-6215(02)00093-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New thioglycosyl donors (o-methoxycarbonylphenyl 2,3,4,6-tetra-O-benzyl-1-thio-beta-D-galactopyranoside and its 6-O-acetyl analogue) were designed and used for the synthesis of glycoconjugate polymers carrying Gb(3) [Gal(alpha1-->4)Gal(beta1-->4)Glc] and isoGb(3) [Gal(alpha1-->3)Gal(beta1-->4)Glc] clusters as side chains. These donors scarcely evolved the unpleasant odor of thiophenols and showed a high alpha-anomeric selectivity in the galactosylation of p-nitrophenyl beta-lactoside derivatives, although in moderate yields. The derived trisaccharides were converted to multivalent carbohydrate ligands and were subjected to a biological assay with Shiga toxins. The multivalent Gb(3) ligand was highly active in inhibiting the toxicity, while the isoGb(3) ligand showed no activity, indicating that Stx-I discriminates between the carbohydrate structures.
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Affiliation(s)
- Hirofumi Dohi
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Japan
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20
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Uzawa H, Kamiya S, Minoura N, Dohi H, Nishida Y, Taguchi K, Yokoyama SI, Mori H, Shimizu T, Kobayashi K. A quartz crystal microbalance method for rapid detection and differentiation of shiga toxins by applying a monoalkyl globobioside as the toxin ligand. Biomacromolecules 2002; 3:411-4. [PMID: 12005508 DOI: 10.1021/bm010161a] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A simple globobiosyl (Gb2) ceramide mimic carrying a monoalkyl chain (C18) was applied for a monolayer Langmuir-Blodgett (L-B) technique to detect Shiga toxins (Stxs) by a quartz crystal microbalance (QCM) method. The artificial glycolipid, synthesized from penta-O-acetyl-D-galactopyranose via a conventional glycosidation pathway, was developed at the air-water surface for the formation of the monolayer film. Then, the film was transferred onto a QCM cell surface modified with alkanethiols. Upon the addition of each of Stx-1 and Stx-2, the decrease of frequency reached saturation within 45 min at a few nanogram order per quartz cell. Binding constants (Ka) estimated for each of Stx-1 and Stx-2 showed little difference between the two toxins. On the other hand, in the presence of an artificial acrylamido Gb2 copolymer as a competitive inhibitor, the two toxins showed a large difference in the binding behavior to the L-B monolayer.
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Affiliation(s)
- Hirotaka Uzawa
- Nanoarchitectonics Research Center (NARC), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8565, Japan.
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Dohi H, Nishida Y, Furuta Y, Uzawa H, Yokoyama SI, Ito S, Mori H, Kobayashi K. Molecular design and biological potential of galacto-type trehalose as a nonnatural ligand of shiga toxins. Org Lett 2002; 4:355-7. [PMID: 11820878 DOI: 10.1021/ol017135+] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Galacto-type trehalose, a "C-4 epimer of trehalose", possesses a stereochemical structure around the alpha(1-1)-linkage analogous to that of the globobiosyl alpha(1-4)-linkage in Gb(2) and Gb(3) ceramides, which are known as the ligands of Shiga toxins produced by pathogenic E. coli. This paper presents evidence supporting the new idea of using a trehalosyl alpha(1-1)-linkage as a substitute for the galactobiosyl alpha(1-4)-linkage.
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Affiliation(s)
- Hirofumi Dohi
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
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22
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Nakajima H, Katagiri YU, Kiyokawa N, Taguchi T, Suzuki T, Sekino T, Mimori K, Saito M, Nakao H, Takeda T, Fujimoto J. Single-step method for purification of Shiga toxin-1 B subunit using receptor-mediated affinity chromatography by globotriaosylceramide-conjugated octyl sepharose CL-4B. Protein Expr Purif 2001; 22:267-75. [PMID: 11437603 DOI: 10.1006/prep.2001.1449] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new single-step purification method for Shiga toxin (Stx) was developed using receptor-mediated affinity chromatography, in which Gb3Cer (globotriaosylceramide) was conjugated to octyl Sepharose CL-4B as a carrier. This method achieves high yield and high purity in a small column on which Gb3Cer has been immobilized at high density. Using this affinity column, the Stx1 B subunit was purified with homogeneity by a one-step procedure from a crude extract of recombinant Stx1 B subunit-producing Escherichia coli. The purified Stx1 B subunit conserved a natural pentamer structure confirmed by gel filtration and sedimentation equilibrium analysis. Furthermore, the purified Stx1 B subunit was able to bind specifically to Gb3Cer expressed on Burkitt's lymphoma cells. This versatile purification method can be used to isolate various types of natural as well as recombinant Stx, facilitating fundamental studies of human diseases caused by this toxin.
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Affiliation(s)
- H Nakajima
- Department of Pathology, National Children's Medical Research Center, Taishido, Tokyo, Japan
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23
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Liu MZ, Fan HN, Lee YC. Chemical synthesis of a P(k)-antigenic globotriose analogue with a functionalized aglycon. Biochimie 2001; 83:693-8. [PMID: 11522399 DOI: 10.1016/s0300-9084(01)01300-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
6-Aminohexyl alpha-D-galactopyranosyl-(1-->4)-beta-D-galactopyranosyl-(1-->4)-beta-D-glucopyranoside (2), a globotriose analogue with a functionalized aglycon, was synthesized, using alpha-D-galactopyranosyluronic acid-(1-->4)-D-galactopyranosyluronic acid [di-GalA (3)] as the starting material, which is commercially available or can be readily prepared from pectin.
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Affiliation(s)
- M Z Liu
- Department of Biology, The Johns Hopkins University, Baltimore, MD 21218, USA
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Matsuoka K, Terabatake M, Esumi Y, Terunuma D, Kuzuhara H. Synthetic assembly of trisaccharide moieties of globotriaosyl ceramide using carbosilane dendrimers as cores. A new type of functional glyco-material. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)01632-9] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Wang JQ, Chen X, Zhang W, Zacharek S, Chen Y, Wang PG. Enhanced Inhibition of Human Anti-Gal Antibody Binding to Mammalian Cells by Synthetic α-Gal Epitope Polymers. J Am Chem Soc 1999. [DOI: 10.1021/ja990219h] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianq-Qiang Wang
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Xi Chen
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Wei Zhang
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Sima Zacharek
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Yongsheng Chen
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Peng George Wang
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
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26
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Synthesis and absolute configuration of a novel aminoglycoglycerolipid, species-specific major immunodeterminant of Mycoplasma fermentans. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00191-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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