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Nakada J, Matsushita T, Koyama T, Hatano K, Matsuoka K. Synthetic assembly of α-O-linked-type GlcNAc using polymer chemistry affords sugar clusters, which effectively bind to lectins. Bioorg Med Chem Lett 2024; 99:129616. [PMID: 38216097 DOI: 10.1016/j.bmcl.2024.129616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/31/2023] [Accepted: 01/06/2024] [Indexed: 01/14/2024]
Abstract
Fischer's glycoside synthesis was applied to linker precursor alcohols of two different lengths having appropriate alkane chains to obtain the corresponding α-glycoside and it was found to be applicable with moderate yields. Water-soluble glycomonomers were systematically prepared from N-acetyl-d-glucosamine (GlcNAc) by introducing two kinds of alcohols having different methylene lengths. Typical radical polymerizations of the glycomonomers with acrylamide as a modulator for control of the distance between carbohydrate residues in water in the presence of ammonium persulfate (APS)-N,N,N',N'-tetramethylethylenediamine (TEMED) gave a series of glycopolymers with various α-glycoside-type GlcNAc residue densities. Fluorometric analysis of the interaction of wheat germ agglutinin (WGA) with the glycopolymers was performed and the results showed unique binding specificities based on structural differences.
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Affiliation(s)
- Jyuichi Nakada
- Area for Molecular Function, Division of Material Science, Graduate School of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Takahiko Matsushita
- Area for Molecular Function, Division of Material Science, Graduate School of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan; Medical Innovation Research Unit (MiU), Advanced Institute of Innovative Technology (AIIT), Saitama University, Sakura, Saitama 338-8570, Japan; Health Science and Technology Research Area, Strategic Research Center, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Tetsuo Koyama
- Area for Molecular Function, Division of Material Science, Graduate School of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Ken Hatano
- Area for Molecular Function, Division of Material Science, Graduate School of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan; Medical Innovation Research Unit (MiU), Advanced Institute of Innovative Technology (AIIT), Saitama University, Sakura, Saitama 338-8570, Japan; Health Science and Technology Research Area, Strategic Research Center, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Koji Matsuoka
- Area for Molecular Function, Division of Material Science, Graduate School of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan; Medical Innovation Research Unit (MiU), Advanced Institute of Innovative Technology (AIIT), Saitama University, Sakura, Saitama 338-8570, Japan; Health Science and Technology Research Area, Strategic Research Center, Saitama University, Sakura, Saitama 338-8570, Japan.
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2
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Zhang Y, Jiang M, Du G, Zhong X, He C, Qin M, Hou Y, Liu R, Sun X. An antigen self-assembled and dendritic cell-targeted nanovaccine for enhanced immunity against cancer. Acta Pharm Sin B 2023; 13:3518-3534. [PMID: 37655327 PMCID: PMC10465870 DOI: 10.1016/j.apsb.2022.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 11/30/2022] Open
Abstract
The rise of nanotechnology has opened new horizons for cancer immunotherapy. However, most nanovaccines fabricated with nanomaterials suffer from carrier-related concerns, including low drug loading capacity, unpredictable metabolism, and potential systemic toxicity, which bring obstacles for their clinical translation. Herein, we developed an antigen self-assembled nanovaccine, which was resulted from a simple acryloyl modification of the antigen to induce self-assembly. Furthermore, a dendritic cell targeting head mannose monomer and a mevalonate pathway inhibitor zoledronic acid (Zol) were integrated or absorbed onto the nanoparticles (denoted as MEAO-Z) to intensify the immune response. The synthesized nanovaccine with a diameter of around 70 nm showed successful lymph node transportation, high dendritic cell internalization, promoted costimulatory molecule expression, and preferable antigen cross-presentation. In virtue of the above superiorities, MEAO-Z induced remarkably higher titers of serum antibody, stronger cytotoxic T lymphocyte immune responses and IFN-γ secretion than free antigen and adjuvants. In vivo, MEAO-Z significantly suppressed EG7-OVA tumor growth and prolonged the survival time of tumor-bearing mice. These results indicated the translation promise of our self-assembled nanovaccine for immune potentiation and cancer immunotherapy.
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Affiliation(s)
| | | | - Guangsheng Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiaofang Zhong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chunting He
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ming Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yingying Hou
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Rong Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xun Sun
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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3
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Matsuoka K, Nakagawa M, Koyama T, Matsushita T, Hatano K. Systematic synthesis of a series of glycopolymers having N-acetyl-D-glucosamine moieties that can be used for evaluations of lectin—carbohydrate interactions. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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VanKoten HW, Moore RS, Cloninger MJ. Nanoparticles To Study Lectins in Caenorhabditis elegans: Multivalent Galactose β1-4 Fucose-Functionalized Dendrimers Provide Protection from Oxidative Stress. Biomacromolecules 2021; 22:4720-4729. [PMID: 34704753 DOI: 10.1021/acs.biomac.1c01001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Galectins are galactoside-binding lectins that are functional dimers or higher-order oligomers. Multivalent binding has been shown to augment the relatively low affinity of the galectins for their galactoside-binding partners, enabling the galectins to play an important role in the global remodeling of cells that occurs during the stress conditions of disease states, including heart disease and cancer. The presence of galectins in the nematode Caenorhabditis elegans and their galactoside-binding properties have been demonstrated, but the role of multivalent interactions for C. elegans galectins is unknown. Here, we describe the synthesis of Galβ1-4Fuc-functionalized poly(amidoamine) dendrimers and their utility in studies using C. elegans during oxidative stress. C. elegans were fed Galβ1-4Fuc-functionalized dendrimers and RNA interference to knock down lectins lec-1 and lec-10 while undergoing oxidative stress. C. elegans that were pretreated with the glycodendrimers were less susceptible to oxidative stress than untreated controls. Worms that were fed fluorescently tagged glycodendrimers and imaged indicated that the dendrimers are primarily present in the digestive tract of the worms, and uptake into the vulva and proximal gonads could also be observed in some instances. This study suggests that multivalently presented Galβ1-4Fuc can protect C. elegans from oxidative stress.
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Affiliation(s)
- Harrison W VanKoten
- Department of Chemistry and Biochemistry, Montana State University, 103 Chemistry and Biochemistry Building, Bozeman, Montana 59717, United States
| | - Rebecca S Moore
- Department of Molecular Biology & LSI Genomics, Princeton University, Princeton, New Jersey 08544, United States
| | - Mary J Cloninger
- Department of Chemistry and Biochemistry, Montana State University, 103 Chemistry and Biochemistry Building, Bozeman, Montana 59717, United States
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5
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Li W, Yu B. Temporary ether protecting groups at the anomeric center in complex carbohydrate synthesis. Adv Carbohydr Chem Biochem 2020; 77:1-69. [PMID: 33004110 DOI: 10.1016/bs.accb.2019.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The synthesis of a carbohydrate building block usually starts with introduction of a temporary protecting group at the anomeric center and ends with its selective cleavage for further transformation. Thus, the choice of the anomeric temporary protecting group must be carefully considered because it should retain intact during the whole synthetic manipulation, and it should be chemoselectively removable without affecting other functional groups at a late stage in the synthesis. Etherate groups are the most widely used temporary protecting groups at the anomeric center, generally including allyl ethers, MP (p-methoxyphenyl) ethers, benzyl ethers, PMB (p-methoxybenzyl) eithers, and silyl ethers. This chapter provides a comprehensive review on their formation, cleavage, and applications in the synthesis of complex carbohydrates.
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Affiliation(s)
- Wei Li
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China.
| | - Biao Yu
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.
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6
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Kopitzki S, Thiem J. Syntheses of mannopyranoside 6-thiophosphate and 6-deoxy-6-thio-mannopyranoside phosphate as ligands for affinity chromatography. Carbohydr Res 2019; 480:7-11. [DOI: 10.1016/j.carres.2019.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/15/2019] [Accepted: 05/18/2019] [Indexed: 11/26/2022]
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7
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Yang H, Jie X, Wang L, Zhang Y, Wang M, Wei W. An array consisting of glycosylated quantum dots conjugated to MoS 2 nanosheets for fluorometric identification and quantitation of lectins and bacteria. Mikrochim Acta 2018; 185:512. [PMID: 30343484 DOI: 10.1007/s00604-018-3044-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 10/06/2018] [Indexed: 01/28/2023]
Abstract
A fluorescent array based on the use of saccharide-functionalized multicolored quantum dots (s-QDs) and of 4-mercaptophenylboronic acid-functionalized MoS2 nanosheets (PBA-MoS2) was constructed for multiple identification and quantitation of lectins and bacteria. In this array, the fluorescence of the s-QDs is quenched by the PBA-MoS2 nanosheets. In the presence of multiple lectins, s-QDs differentially detach from the surface of PBA-MoS2 nanosheets, producing distinct fluorescence response patterns due to both quenching and enhancement of fluorescence. By analyzing the fluorescence responses with linear discriminant analysis, multiple lectins and bacteria were accurately identified with 100% accuracy. The limits of detection of Concanavalin A, Pisum sativum agglutinin, Peanut agglutinin, and Ricius communis I agglutinin are as low as 3.7, 8.3, 4.2 and 3.9 nM, respectively. The array has further been evidenced to be potent for distinguishing and quantifying different bacterial species by recognizing their surface lectins. The detection limits of Escherichia coli and Enterococcus faecium are 87 and 66 cfu mL-1, respectively. Graphical abstract Schematic of a fluorometric array based on the use of saccharides-functionalized quantum dots (s-QDs) and 4-mercaptophenylboronic acid-functionalized MoS2 (PBA- MoS2) nanosheets. This array was successfully applied to simultaneously analysis of lectins, bacteria in real samples with high sensitivity and accuracy.
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Affiliation(s)
- Haimei Yang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China
| | - Xu Jie
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China
| | - Lu Wang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China
| | - Yue Zhang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China
| | - Min Wang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China.
| | - Weili Wei
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China.
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8
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Beau JM, Boyer FD, Norsikian S, Urban D, Vauzeilles B, Xolin A. Glycosylation: The Direct Synthesis of 2-Acetamido-2-Deoxy-Sugar Glycosides. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800735] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jean-Marie Beau
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud, CNRS, Université Paris-Saclay; 91405 Orsay France
| | - François-Didier Boyer
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
- Institut Jean-Pierre Bourgin, INRA; AgroParisTech, CNRS; Université Paris-Saclay; 78000 Versailles France
| | - Stéphanie Norsikian
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Dominique Urban
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud, CNRS, Université Paris-Saclay; 91405 Orsay France
| | - Boris Vauzeilles
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud, CNRS, Université Paris-Saclay; 91405 Orsay France
| | - Amandine Xolin
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
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Alneyadi SS, Abdulqader AA, Salem AA, Abdou IM. Synthesis and antimicrobial activity of 4-trifluoromethylpyridine nucleosides. HETEROCYCL COMMUN 2017. [DOI: 10.1515/hc-2017-0019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract4-Trifluoromethylpyridine derivatives 4–8 represent good candidates for the discovery of new antibacterial agents. Fluorinated pyridine nucleosides 4–7 and non-nucleoside analogues 8a,b were synthesized and evaluated for their antibacterial activities against Staphylococcus aureus, Bacillus infantis, Escherichia coli and Stenotrophomonas maltophilia. The minimum inhibitory concentrations (MICs) of the new nucleosides 4–7 range from 1.3 to 4.9 μg/mL and MICs of fluoroaryl derivatives 8a,b are in the range of 1.8–5.5 μg/mL. Activity of amoxicillin, the reference drug, is 1.0–2.0 μg/mL under similar conditions.
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Affiliation(s)
| | | | - Alaa A. Salem
- Department of Chemistry, College of Science, UAEUAl-Ain 15551, UAE
| | - Ibrahim M. Abdou
- Department of Chemistry, College of Science, UAEUAl-Ain 15551, UAE,
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10
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Sekljic H, Kosma P, Bartek J, Fukase K, Kusumoto S, Brade H. Synthesis of neoglycoproteins containing 5-O-phosphorylated Kdomonosaccharide, 4-O- and 5-O-phosphorylated α-Kd↬(2 6)-2-acetamido-2-deoxy- -D-glucopyranosyl disaccharide residues. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/096805199600300208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Radical addition of cysteamine to anomeric allyl glycosides of Kdo 5-phosphates 1 and 4 afforded good yields of the corresponding 3-(2-aminoethylthio)propyl glycosides. Similar reactions with the α-allyl glycoside of Kdo 4-phosphate 7 led to substantial formation of the dephosphorylated product 10 through intramolecular hydrolysis of the 4-O-phosphomonoester by the terminal amino function of the spacer group. Similar side reactions occurred upon deblocking of the 4- O-phosphorylated 6-aminohexyl-α-glycoside lactone derivative 18. Allyl glycosides of 4'- O- and 5'- O-phosphorylated Kd↬ (2 6)-glucosamine derivatives were prepared in good yields via phosphorylation using the amidite procedure. The 4'-phosphate moiety was introduced following intramolecular protection of the 5'-OH group as a lactone. Subsequent deprotection gave the allyl glycosides 25 and 33 which were transformed into the corresponding stable spacer derivatives 26 and 34 by coupling with cysteamine. The ligands were activated with thiophosgene and reacted with bovine serum albumin to give the neoglycoconjugates 3, 6, 27 and 35 to be used in immunochemical studies of monoclonal antibodies directed against Haemophilus influenzae Re-mutant and related lipopolysaccharides.
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Affiliation(s)
- Harald Sekljic
- Department of Chemistry, University of Agriculture, Vienna, Austria
| | - Paul Kosma
- Department of Chemistry, University of Agriculture, Vienna, Austria
| | - Johannes Bartek
- Department of Chemistry, University of Agriculture, Vienna, Austria
| | - Koichi Fukase
- Department of Chemistry, Osaka University, Osaka, Japan
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11
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Müller-Loennies S, Grimmecke D, Brade L, Lindner B, Kosma P, Brade H. A novel strategy for the synthesis of neoglycoconjugates from deacylated deep rough lipopolysaccharides. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/09680519020080040601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We report a novel strategy for the preparation of neoglycoconjugates of oligosaccharides which are obtained after complete deacylation of bacterial deep rough lipopolysaccharides (LPS) isolated from recombinant Escherichia coli bacteria synthesizing a Kdo di-[α-Kdo-(2→4)-α-Kdo-(2→] and a Kdo trisaccharide [α-Kdo-(2→8)-α-Kdo-(2→4)-α-Kdo-(2→] of Re-type and chlamydial LPS, respectively. Unlike acylated LPS, such oligosaccharides can be obtained in pure form and thus lead to well-defined neoglycoconjugates. Cleavage of the 1-phosphate of the lipid A moiety by alkaline phosphatase treatment leads to a free reducing glucosamine which can be further reacted with allylamine. After reductive amination, spacer elongation of the allyl group with cysteamine and activation with thiophosgene, the ligands were reacted with BSA. We have compared the immunological reactivity of such defined neoglycoconjugates obtained from natural sources with those obtained by chemical synthesis and report that such neoglycoconjugates are immunogenic and well suited as antigens for the study of epitope specificities of monoclonal antibodies. In addition, we have compared these conjugates with those in which ligands were coupled by glutardialdehyde to BSA. Our approach proved to be superior since the latter led upon immunization of mice to a relatively high percentage of antibodies that reacted with glutardialdehyde derivatized BSA without the carbohydrate ligand. This was not the case for cysteamine-spacered ligands coupled via their isothiocyanate-derivatives.
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Affiliation(s)
- Sven Müller-Loennies
- Division of Biochemical and Medical Microbiology, Center for Medicine and Biosciences, Research Center Borstel, Germany
| | - Dieter Grimmecke
- Division of Biochemical and Medical Microbiology, Center for Medicine and Biosciences, Research Center Borstel, Germany
| | - Lore Brade
- Division of Biochemical and Medical Microbiology, Center for Medicine and Biosciences, Research Center Borstel, Germany,
| | - Buko Lindner
- Division of Biophysics, Center for Medicine and Biosciences, Research Center Borstel, Borstel, Germany
| | - Paul Kosma
- Institute of Chemistry, University of Agricultural Sciences, Vienna, Austria
| | - Helmut Brade
- Division of Biochemical and Medical Microbiology, Center for Medicine and Biosciences, Research Center Borstel, Germany
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12
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Brade L, Gronow S, Wimmer N, Kosma P, Brade H. Monoclonal antibodies against 3-deoxy-α-D-manno-oct-2-ulosonic acid (Kdo) and D-glycero-α-D-talo-oct-2-ulosonic acid (Ko). ACTA ACUST UNITED AC 2016. [DOI: 10.1177/09680519020080050901] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Monoclonal antibodies (mAbs) were obtained after immunization of mice with neoglycoconjugates containing as a ligand the disaccharide Kdo(2→ 4)Ko or Ko(2→4)Kdo, representing structural elements of the core region of lipopolysaccharides (LPSs) from Acinetobacter haemolyticus and Burkholderia cepacia, respectively. One antibody, S67-9, bound with high specificity to Ko(2→ 4)Kdo-BSA showing no cross reactivity with Kdo(2→ 4)Kdo-BSA and the other antigens tested. A second mAb, S68-12, bound preferentially to Kdo(2→ 4)Ko-BSA but cross reacted with Ko(2→ 4)Kdo-BSA and Kdo(2→ 4)Kdo-BSA. A third mAb, S67-27, was found to bind Kdo monosaccharide. Although mAbs S67-9 and S68-12 did not bind to LPS of Burkholderia or Acinetobacter as expected, the mAbs will be useful tools in studying the biosynthesis of LPS containing Ko.
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Affiliation(s)
- Lore Brade
- Research Center Borstel, Center for Medicine and Biosciences, Borstel, Germany,
| | - Sabine Gronow
- Research Center Borstel, Center for Medicine and Biosciences, Borstel, Germany
| | - Norbert Wimmer
- Institute of Chemistry, University of Agriculture, Vienna, Austria
| | - Paul Kosma
- Institute of Chemistry, University of Agriculture, Vienna, Austria
| | - Helmut Brade
- Research Center Borstel, Center for Medicine and Biosciences, Borstel, Germany
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13
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Reiter A, Brade L, Sanchez-Carballo P, Brade H, Kosma P. Synthesis and immunochemical characterization of neoglycoproteins containing epitopes of the inner core region of Pseudomonas aeruginosa RNA group I lipopolysaccharide. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/09680519010070020701] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The disaccharide allyl 2-acetamido-2-deoxy-α-D-galactopyranosyl-(1→3)-7- O-carbamoyl-L- glyceroα-D- manno-heptopyranoside 5 (GalNAc-cmHep-allyl) was synthesized starting from 1 and 2. Compound 5, cmHep-allyl and the disaccharide cmHep-(1→3)-Hep-allyl were converted into cysteamine-spacered derivatives and conjugated to bovine serum albumin (BSA) to yield the neoglycoconjugates 7—9, respectively. These conjugates were used to immunize mice and to prepare monoclonal antibodies (mAbs) which were characterized in comparison to mAbs obtained after immunization with heat-killed Pseudomonas aeruginosa strain H4. Two antibodies obtained after immunization with the neoglycoconjugates bound strongly to cmHep-BSA and with lower affinity to cmHep-Hep-BSA but did not bind to GalNAc-cmHep-BSA or to H4 LPS. Another antibody obtained after immunization with heat-killed bacteria bound to LPS and GalNAc-cmHep-BSA but not to cmHep-Hep-BSA or cmHep-BSA
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Affiliation(s)
- Andreas Reiter
- Institute of Chemistry, University of Agricultural Sciences, Vienna, Austria
| | - Lore Brade
- Divisions of Medical and Biochemical Microbiology, Centre for Medicine and Biosciences, Germany
| | | | - Helmut Brade
- Divisions of Medical and Biochemical Microbiology, Centre for Medicine and Biosciences, Germany
| | - Paul Kosma
- Institute of Chemistry, University of Agricultural Sciences, Vienna, Austria,
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14
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Swierzko A, Brade L, Brabetz W, Zych K, Paulsen H, Brade H. Monoclonal antibodies against the heptose region of enterobacterial lipopolysaccharides. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/096805199400100107] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Murine monoclonal antibodies (MAbs) against the rough mutant lipopolysaccharides (LPS) of Salmonella minnesota strain R4 and R7 (chemotypes Rd2P - and Rd1P-, respectively) were obtained after immunization of BALB/c and NZB mice, respectively, with heat-killed bacteria. A total of 5 MAbs was obtained which were serologically characterized by hemagglutination, EIA and Western blot using LPS, de-O-acylated LPS and dephosphorylated LPS. In addition, the completely deacylated carbohydrate backbone, the deacylated, dephosphorylated and reduced carbohydrate backbone, and synthetic partial structures were covalently linked to bovine serum albumin resulting in artificial glycoconjugate antigens. Both groups of MAbs (anti-R4 and anti-R7) were highly specific for the Rd2P- and Rd1P- chemotypes, respectively, since they did not react with LPS of the Ra, Rb, Rc or Re chemotype. The R4 antibodies required for binding the core region [composed of 3-deoxy-α-D- manno-octulosonic acid (Kdo) and L-glycero-α-D- manno-heptopyranose (Hep)] and the phosphorylated glucosamine backbone of the lipid A moiety. The R7 antibodies bound to some extent to the core oligosaccharide Hep(1→3)Hep(1→5)Kdo(2→6), however, better binding was observed when the glucosamine backbone of lipid A was also present. In this case however, phosphoryl groups were not required. These antibodies can detect enterobacteria with an LPS of the Rd-chemotype, and may be useful to characterize also other naturally occurring rough mutants or genetically manipulated strains used to clone genes of the rfa locus.
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Affiliation(s)
- A. Swierzko
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany, Institut für Organische Chemie der Universität, Hamburg, Germany
| | - L. Brade
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany, Institut für Organische Chemie der Universität, Hamburg, Germany
| | - W. Brabetz
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany, Institut für Organische Chemie der Universität, Hamburg, Germany
| | - K. Zych
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany, Institut für Organische Chemie der Universität, Hamburg, Germany
| | - H. Paulsen
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany, Institut für Organische Chemie der Universität, Hamburg, Germany
| | - H. Brade
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany, Institut für Organische Chemie der Universität, Hamburg, Germany
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15
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Brade L, Grimmecke HD, Holst O, Brabetz W, Zamojski A, Brade H. Specificity of monoclonal antibodies against Escherichia coli K-12 lipopolysaccharide. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/096805199600300105] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Three monoclonal antibodies against the lipopolysaccharide (LPS) of Escherichia coli strain K-12 were obtained after immunization of BALB/c mice with heat-killed bacteria and were serologically characterized by hemagglutination, enzyme-immunoassay, Western, dot, and colony blot using as antigens bacteria, LPS, de-O-acylated LPS, dephosphorylated LPS, the core oligosaccharide and synthetic partial structures representing a di-, tri-and tetrasaccharide of the K-12 outer core region. In addition, deacylated LPS and synthetic oligosaccharides were covalently linked to bovine serum albumin resulting in artificial glycoconjugate antigens. In all assays used, the antibodies were specific for K-12 LPS. These antibodies detect E. coli K-12 LPS in its isolated form as well as on the surface of bacteria and are, thus, useful for all working with this microorganism.
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Affiliation(s)
- Lore Brade
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany
| | - Hans-Dieter Grimmecke
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany
| | - Otto Holst
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany
| | - Werner Brabetz
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany
| | - Alexander Zamojski
- Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - Helmut Brade
- Division of Biochemical Microbiology, Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, Borstel, Germany
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16
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McSweeney L, Dénès F, Scanlan EM. Thiyl-Radical Reactions in Carbohydrate Chemistry: From Thiosugars to Glycoconjugate Synthesis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501543] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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17
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Kurimoto K, Yamamura H, Miyagawa A. Functionalization of Aglycones on Sialoside Derivatives to Generate Precursors for Biological Applications. CHEM LETT 2016. [DOI: 10.1246/cl.151003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kenta Kurimoto
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
| | - Hatsuo Yamamura
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
| | - Atsushi Miyagawa
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
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18
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Lindhorst TK, Dubber M. Octopus glycosides: multivalent molecular platforms for testing carbohydrate recognition and bacterial adhesion. Carbohydr Res 2015; 403:90-7. [DOI: 10.1016/j.carres.2014.06.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 06/26/2014] [Accepted: 06/30/2014] [Indexed: 01/28/2023]
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19
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Bulman Page PC, Chan Y, Liddle J, Elsegood MR. Carbohydrate-derived iminium salt organocatalysts for the asymmetric epoxidation of alkenes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Claes D, Memmel E, Holzapfel M, Seibel J, Maison W. High-Affinity Carbohydrate Binding by Trimeric Benzoboroxoles Measured on Carbohydrate Arrays. Chembiochem 2014; 15:2450-7. [DOI: 10.1002/cbic.201402297] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Indexed: 11/06/2022]
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21
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Olsen CE, Møller BL, Motawia MS. Synthesis of the allelochemical alliarinoside present in garlic mustard (Alliaria petiolata), an invasive plant species in North America. Carbohydr Res 2014; 394:13-6. [PMID: 24908553 DOI: 10.1016/j.carres.2014.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 05/02/2014] [Accepted: 05/10/2014] [Indexed: 02/02/2023]
Abstract
The allelochemical alliarinoside present in garlic mustard (Alliaria petiolata), an invasive plant species in North America, was chemically synthesized using an efficient and practical synthetic strategy based on a simple reaction sequence. Commercially available 1,2,3,4,6-penta-O-acetyl-β-D-glucopyranose was converted into prop-2-enyl 2',3',4',6'-tetra-O-acetyl-β-D-glucopyranoside and subjected to epoxidation. In a one-pot reaction, ring-opening of the epoxide using TMSCN under solvent free conditions followed by treatment of the formed trimethylsilyloxy nitrile with pyridine and phosphoryl chloride, afforded the acetylated β-unsaturated nitriles (Z)-4-(2',3',4',6'-tetra-O-β-D-glucopyranosyloxy)but-2-enenitrile and its isomer (E)-4-(2',3',4',6'-tetra-O-β-D-glucopyranosyloxy)but-2-enenitrile. Deacetylation of Z- and/or E-isomers afforded the target molecules alliarinoside and its isomer.
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Affiliation(s)
- Carl Erik Olsen
- Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center for 'Plant Plasticity', University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark
| | - Birger Lindberg Møller
- Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center for 'Plant Plasticity', University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark; Center for Synthetic Biology 'bioSYNergy', University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark; Gamle Carlsberg Vej 10, DK-1799 Copenhagen V, Denmark
| | - Mohammed Saddik Motawia
- Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center for 'Plant Plasticity', University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark; Center for Synthetic Biology 'bioSYNergy', University of Copenhagen, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark.
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22
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Degradation of Derivatives ofN-Acetyl-D-glucosamine byRhodococcus rhodochrousIFO 15564: Substrate Specificity and Its Application to the Synthesis of Allyl α-N-Acetyl-D-glucosaminide. Biosci Biotechnol Biochem 2014; 62:1581-5. [DOI: 10.1271/bbb.62.1581] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Povie G, Tran AT, Bonnaffé D, Habegger J, Hu Z, Le Narvor C, Renaud P. Repairing the Thiol-Ene Coupling Reaction. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309984] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Povie G, Tran AT, Bonnaffé D, Habegger J, Hu Z, Le Narvor C, Renaud P. Repairing the Thiol-Ene Coupling Reaction. Angew Chem Int Ed Engl 2014; 53:3894-8. [DOI: 10.1002/anie.201309984] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Revised: 01/11/2014] [Indexed: 11/09/2022]
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25
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Affiliation(s)
- Fabrice Dénès
- Laboratoire CEISAM UMR CNRS 6230 - UFR des Sciences et Techniques, Université de Nantes , 2 rue de la Houssinière, BP 92208 - 44322 Nantes Cedex 3, France
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26
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Hargreaves JM, Le Guen Y, Guerreiro C, Descroix K, Mulard LA. Linear synthesis of the branched pentasaccharide repeats of O-antigens from Shigella flexneri 1a and 1b demonstrating the major steric hindrance associated with type-specific glucosylation. Org Biomol Chem 2014; 12:7728-49. [DOI: 10.1039/c4ob01200c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Shigella flexneri serotypes 1b and 1a are Gram-negative enteroinvasive bacteria causing shigellosis in humans.
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Affiliation(s)
- Jason M. Hargreaves
- Institut Pasteur
- Unité de Chimie des Biomolécules
- 75724 Paris Cedex 15, France
- CNRS UMR3523
- Institut Pasteur
| | - Yann Le Guen
- Institut Pasteur
- Unité de Chimie des Biomolécules
- 75724 Paris Cedex 15, France
- CNRS UMR3523
- Institut Pasteur
| | - Catherine Guerreiro
- Institut Pasteur
- Unité de Chimie des Biomolécules
- 75724 Paris Cedex 15, France
- CNRS UMR3523
- Institut Pasteur
| | - Karine Descroix
- Institut Pasteur
- Unité de Chimie des Biomolécules
- 75724 Paris Cedex 15, France
- CNRS UMR3523
- Institut Pasteur
| | - Laurence A. Mulard
- Institut Pasteur
- Unité de Chimie des Biomolécules
- 75724 Paris Cedex 15, France
- CNRS UMR3523
- Institut Pasteur
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27
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Wojcik F, O'Brien AG, Götze S, Seeberger PH, Hartmann L. Synthesis of carbohydrate-functionalised sequence-defined oligo(amidoamine)s by photochemical thiol-ene coupling in a continuous flow reactor. Chemistry 2013; 19:3090-8. [PMID: 23325532 DOI: 10.1002/chem.201203927] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Indexed: 12/11/2022]
Abstract
Poly/oligo(amidoamine)s (PAAs) have recently been recognised for their potential as well-defined scaffolds for multiple carbohydrate presentation and as multivalent ligands. Herein, we report two complimentary strategies for the preparation of such sequence-defined carbohydrate-functionalised PAAs that use photochemical thiol-ene coupling (TEC) as an alternative to the established azide-alkyne cycloaddition ("click") reaction. In the first approach, PAAs that contained multiple olefins were synthesised on a solid support from a new building block and subsequent conjugation with unprotected thio-carbohydrates. Alternatively, a pre-functionalised building block was prepared by using TEC and assembled on a solid support to provide a carbohydrate-functionalised PAA. Both methods rely on the use of a continuous flow photoreactor for the TEC reactions. This system is highly efficient, owing to its short path length, and requires no additional radical initiator. Performing the reactions at 254 nm in Teflon AF-2400 tubing provides a highly efficient TEC procedure for carbohydrate conjugation, as demonstrated in the reactions of O-allyl glycosides with thiols. This method allowed the complete functionalisation of all of the reactive sites on the PAA backbone in a single step, thereby obtaining a defined homogeneous sequence. Furthermore, reaction at 366 nm in FEP tubing in the flow reactor enabled the large-scale synthesis of an fluorenylmethyloxycarbonyl (Fmoc)-protected glycosylated building block, which was shown to be suitable for solid-phase synthesis and will also allow heterogeneous sequence control of different carbohydrates along the oligomeric backbone. These developments enable the synthesis of sequence-defined carbohydrate-functionalised PAAs with potential biological applications.
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Affiliation(s)
- Felix Wojcik
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
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28
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A high-yielding synthesis of allyl glycosides from peracetylated glycosyl donors. Carbohydr Res 2012; 357:147-50. [PMID: 22677518 DOI: 10.1016/j.carres.2012.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 05/07/2012] [Accepted: 05/10/2012] [Indexed: 11/22/2022]
Abstract
β-Configured peracetylated sugars are often used as easily accessible glycosyl donors that are typically activated with common Lewis acids such as boron trifluoride or trimethylsilyltrifluoromethane sulfonate. Often these glycosylations occur with unsatisfactory yields due to incomplete reactions or extensive byproduct formation, primarily as a result of loss of an additional acetyl group generating partially unprotected glycosides. Here we report a simple glycosylation-reacetylation protocol for the generation of predominantly β-configured peracetylated allyl glucoside, -galactoside, -lactoside, and -maltoside with substantially improved reaction yields.
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29
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Pfaffe M, Mahrwald R. Direct glycosylation of unprotected and unactivated carbohydrates under mild conditions. Org Lett 2012; 14:792-5. [PMID: 22263888 DOI: 10.1021/ol203329u] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ligand exchange acetalization of acetals in the presence of catalytic amounts of mandelic acid and titanium tert-butoxide is reported. This transformation is successfully extended to glycosylation of unprotected and unactivated pentoses. Even unreactive pentoses such as D-arabinose or D-lyxose can be transformed by this new methodology into corresponding isopropyl glycosides.
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Affiliation(s)
- Matthias Pfaffe
- Institute of Chemistry, Humboldt-University, Brook-Taylor Str. 2, 12489 Berlin, Germany
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30
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Blaukopf M, Müller B, Hofinger A, Kosma P. Synthesis of Neoglycoconjugates Containing 4-Amino-4-deoxy-l-arabinose Epitopes Corresponding to the Inner Core of Burkholderia and Proteus Lipopolysaccharides. European J Org Chem 2011; 2012:119-131. [PMID: 23136534 PMCID: PMC3482937 DOI: 10.1002/ejoc.201101171] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Indexed: 11/08/2022]
Abstract
Disaccharides that contain 3-deoxy-d-manno-oct-2-ulosonic acid (Kdo) and d-glycero-d-talo-oct-2-ulosonic acid (Ko) substituted at the 8-position by 4-amino-4-deoxy-β-l-arabinopyranosyl (Ara4N) residues have been prepared. Coupling an N-phenyltrifluoroacetimidate-4-azido-4-deoxy-l-arabinosylglycosyl donor to acetyl-protected allyl glycosides of Kdo and Ko afforded anomeric mixtures of disaccharide products in 74 and 90 % yield, respectively, which were separated by chromatography. Further extension of an intermediate Ara4N-(1→8)-Kdo disaccharide acceptor, which capitalized on a regioselective glycosylation with a Kdo bromide donor under Helferich conditions, afforded the branched trisaccharide α-Kdo-(2→4)[β-l-Ara4N-(1→8)]-α-Kdo derivative. Deprotection of the protected di- and trisaccharide allyl glycosides was accomplished by TiCl4-promoted benzyl ether cleavage followed by the removal of ester groups and reduction of the azido group with thiol or Staudinger reagents, respectively. The reaction of the anomeric allyl group with 1,3-propanedithiol under radical conditions afforded the thioether-bridged spacer glycosides, which were efficiently coupled to maleimide-activated bovine serum albumin. The neoglycoconjugates serve as immunoreagents with specificity for inner core epitopes of Burkholderia and Proteus lipopolysaccharides.
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Affiliation(s)
- Markus Blaukopf
- Department of Chemistry, University of Natural Resources and Life Sciences Muthgasse 18, 1190 Vienna, Austria
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31
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Hassan HHAM, Soliman R. Synthesis and Antimicrobial Activity of Novel 3-Benzyloxy-4-Substituted-2- Azetidinones: Formation of a Hydrophobic Layer Via a Self-Organization Effect. PHOSPHORUS SULFUR 2011. [DOI: 10.1080/10426507.2011.553208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Hammed H. A. M. Hassan
- a Department of Chemistry, Faculty of Science , Alexandria University , Alexandria, Egypt
| | - Raafat Soliman
- b Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Alexandria University , Alexandria, Egypt
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32
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Adamo R, Tontini M, Brogioni G, Romano MR, Costantini G, Danieli E, Proietti D, Berti F, Costantino P. Synthesis of Laminarin Fragments and Evaluation of a β-(1,3) Glucan Hexasaccaride-CRM197Conjugate as Vaccine Candidate againstCandida albicans. J Carbohydr Chem 2011. [DOI: 10.1080/07328303.2011.604453] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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33
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Hassan HHAM. Synthesis and Antimicrobial Activity of Novel Types of Persulfide-Spacer α-O-glycosides: Formation of a Super Hydrophobic Layer via a Self-Organization Effect Through the Strong Hydrogen Bonding Interaction. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2011. [DOI: 10.1080/10601325.2011.544626] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Kulkarni AA, Weiss AA, Iyer SS. Detection of Carbohydrate Binding Proteins Using Magnetic Relaxation Switches. Anal Chem 2010; 82:7430-5. [DOI: 10.1021/ac101579m] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ashish A. Kulkarni
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, and Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Cincinnati, Ohio 45267-0524
| | - Alison A. Weiss
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, and Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Cincinnati, Ohio 45267-0524
| | - Suri S. Iyer
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, and Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Cincinnati, Ohio 45267-0524
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Affiliation(s)
- George R. Newkome
- Departments of Polymer Science and Chemistry, University of Akron, Akron, Ohio 44325-4717, and Department of Chemistry, Hiram College, Hiram, Ohio 44234
| | - Carol Shreiner
- Departments of Polymer Science and Chemistry, University of Akron, Akron, Ohio 44325-4717, and Department of Chemistry, Hiram College, Hiram, Ohio 44234
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37
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Synthesis of a neoglycoconjugate containing a Chlamydophila psittaci-specific branched Kdo trisaccharide epitope. Carbohydr Res 2009; 345:704-8. [PMID: 20116048 DOI: 10.1016/j.carres.2009.12.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Accepted: 12/11/2009] [Indexed: 11/22/2022]
Abstract
The branched Kdo trisaccharide sodium (3-deoxy-alpha-D-manno-oct-2-ulopyranosyl)onate-(2-->8)-[sodium (3-deoxy-alpha-D-manno-oct-2-ulopyranosyl)onate-(2-->4)]-sodium (allyl 3-deoxy-alpha-D-manno-oct-2-ulopyranosid)onate has been prepared utilizing the regioselective glycosylation of the C-7, C-8 diol entity of a Kdo monosaccharide acceptor with a Kdo bromide donor followed by the attachment of the third Kdo unit to O-4 of the disaccharide intermediate. Deacetylation and hydrolysis of the methyl ester groups furnished the trisaccharide allyl glycoside which was converted into the corresponding 3-(2-aminoethylthio)propyl glycoside. Subsequent covalent attachment to bovine serum albumin furnished a neoglycoconjugate serving as an antigen for the induction of Chlamydophila psittaci-specific monoclonal antibodies.
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38
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Kitano H, Takahashi Y, Mizukami K, Matsuura K. Kinetic study on the binding of lectin to mannose residues in a polymer brush. Colloids Surf B Biointerfaces 2009; 70:91-7. [DOI: 10.1016/j.colsurfb.2008.12.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Accepted: 12/07/2008] [Indexed: 11/26/2022]
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39
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Mizukami K, Takakura H, Matsunaga T, Kitano H. Binding of Ricinus communis agglutinin to a galactose-carrying polymer brush on a colloidal gold monolayer. Colloids Surf B Biointerfaces 2008; 66:110-8. [DOI: 10.1016/j.colsurfb.2008.05.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 05/20/2008] [Accepted: 05/25/2008] [Indexed: 12/01/2022]
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40
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Drescher S, Meister A, Graf G, Hause G, Blume A, Dobner B. General Synthesis and Aggregation Behaviour of New Single-Chain Bolaphospholipids: Variations in Chain and Headgroup Structures. Chemistry 2008; 14:6796-804. [DOI: 10.1002/chem.200800033] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Hasegawa A, Nakamura J, Kiso M. Synthesis of 6-S-(5-Acetamido-3,5-Dideoxy-D-Glycero-α-D-Galacto-2-Nonulopyranosylonic Acid)-6-Thio-Hexopyranosides. J Carbohydr Chem 2008. [DOI: 10.1080/07328308608082639] [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)
- Akira Hasegawa
- a Department of Agricultural Chemistry , Gifu University , Gifu , 501-11 , Japan
| | - Junko Nakamura
- a Department of Agricultural Chemistry , Gifu University , Gifu , 501-11 , Japan
| | - Makoto Kiso
- a Department of Agricultural Chemistry , Gifu University , Gifu , 501-11 , Japan
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42
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Gan Z, Cao S, Wu Q, Roy R. Regiospecific Syntheses of N-Acetyllactosamine Derivatives and Application Toward a Highly Practical Synthesis of Lewis X Trisaccharide. J Carbohydr Chem 2008. [DOI: 10.1080/07328309908544034] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Zhonghong Gan
- a Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- b Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- c Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- d Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
| | - Suoding Cao
- a Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- b Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- c Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- d Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
| | - Qingquan Wu
- a Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- b Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- c Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- d Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
| | - René Roy
- a Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- b Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- c Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
- d Department of Chemistry , University of Ottawa , Ottawa, ON, Canada K1N 6N5
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Kitano H, Nakada H, Mizukami K. Interaction of wheat germ agglutinin with an N-acetylglucosamine-carrying telomer brush accumulated on a colloidal gold monolayer. Colloids Surf B Biointerfaces 2008; 61:17-24. [PMID: 17681457 DOI: 10.1016/j.colsurfb.2007.06.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2007] [Revised: 06/26/2007] [Accepted: 06/26/2007] [Indexed: 11/24/2022]
Abstract
A disulfide-carrying telomer with many pendent N-acetylglucosamine (GlcNAc) residues (Cys-PMHGlcNAc) was obtained by photo-polymerization of 1-(6'-methacryloylaminohexyl)-2-N-acetoamido-2-deoxy d-glucopyranoside) (MHGlcNAc) using a benzyl N,N-diethyldithiocarbamoyl (BDC) derivative that shows abilities of initiation, transfer, and termination (iniferter). The disulfide-carrying telomer was accumulated on a monolayer of colloidal Au on a glass substrate, and the interaction of wheat germ agglutinin (WGA) with GlcNAc residue at the polymer brush-solution interface was examined by using the localized surface plasmon resonance (LSPR) technique. For comparison, an amphiphile carrying many pendent GlcNAc residues was also prepared with MHGlcNAc and a lipophilic radical initiator and was incorporated in a phospholipid liposome to examine interaction of the GlcNAc residue with WGA on the liposome surface using turbidity measurements. Both the colloidal gold optical device and the liposome showed a concentration-dependent specific binding of WGA, and the GlcNAc-carrying liposome had a detection limit of 100 nM for WGA, whereas that of the colloidal gold device was 10nM. The sugar-carrying telomer-coated device examined here is not only useful as a simple biosensor chip but is also expected to expand our knowledge of bio-related phenomena at the liquid-telomer brush interfaces on a colloidal Au.
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Affiliation(s)
- Hiromi Kitano
- Department of Applied Chemistry, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan.
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Zhang F, Vasella A. Regioselective synthesis of 1I,1II,5I,5II,6I,6I,6II,6II-2H8-cellobiose. Carbohydr Res 2007; 342:2546-56. [PMID: 17803982 DOI: 10.1016/j.carres.2007.07.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2007] [Revised: 07/13/2007] [Accepted: 07/23/2007] [Indexed: 11/23/2022]
Abstract
Partially deuteriated 1,5,6,6-(2)H(4)-d-glucose and 1(I),1(II),5(I),5(II),6(I),6(I),6(II),6(II)-(2)H(8)-d-cellobiose were synthesized in high yields and on a large scale from d-glucose. (2)H enrichment at C-5 and C-6 of each glucopyranosyl unit in excess of 85% and 90%, respectively, was realized by (1)H-(2)H exchange in (2)H(2)O containing deuteriated Raney Ni. Nucleophilic addition of LiAlD(4) to 5,6,6-(2)H(3)-2,3,4,6-tetra-O-benzyl-d-gluconolactone led to a 98% (2)H enrichment at C-1. Deuteriated cellobiose is of interest as building block for the synthesis of a model compound of cellulose I.
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Affiliation(s)
- Fuyi Zhang
- Laboratorium für Organische Chemie, ETH Zürich, Switzerland
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Anraku Y, Takahashi Y, Kitano H, Hakari M. Recognition of sugars on surface-bound cap-shaped gold particles modified with a polymer brush. Colloids Surf B Biointerfaces 2007; 57:61-8. [PMID: 17307342 DOI: 10.1016/j.colsurfb.2007.01.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2006] [Accepted: 01/05/2007] [Indexed: 10/23/2022]
Abstract
A dithiolated random copolymer with pendent phenylboronic acid residues (Cys-Poly(3-acrylamidophenylboronic acid-co-2-dimethylaminopropyl methacrylamide), Cys-Poly(APBA-co-DMAPMA)) obtained by photo-iniferter method was accumulated as a polymer brush on a cap-shaped gold particles deposited on a vacuum-evaporated gold film, and the usefulness of the polymer brush as a sensing element for glycoprotein, ovalbumin (OVA), was examined by using UV-vis spectroscopy with a help of surface plasmon resonance. A similar system was constructed with a dithiolated mannose-carrying polymer, dithiolated-poly(2-methacryloyloxyethyl-D-mannopyranoside) (DT-PMEMan), prepared by the atom transfer radical polymerization (ATRP). The brush composed of this polymer was examined as a sensing element for lectin, concanavalin A (Con A). The sensor cells modified with Cys-Poly(APBA-co-DMAPMA) and DT-PMEMan showed a concentration-dependent binding of OVA and Con A, respectively, with a comparable detection limit to those with a monolayer of polymer brush-coated gold particle deposited on a glass substrate. Using this system, it can be expected to open a new perspective to various functional polymer brushes fixed to the cap-shaped gold particle on a solid substrate.
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Affiliation(s)
- Yasutaka Anraku
- Department of Applied Chemistry, Graduate School of Science and Engineering, University of Toyama, Toyama 930-8555, Japan
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46
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Valade A, Urban D, Beau JM. Two galactosyltransferases' selection of different binders from the same uridine-based dynamic combinatorial library. ACTA ACUST UNITED AC 2007; 9:1-4. [PMID: 17206823 DOI: 10.1021/cc060033w] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne Valade
- Laboratoire de Synthèse de Biomolécules, Université Paris-Sud 11, Institut de Chimie Moléculaire et des Matériaux Associé au CNRS, F-91405 Orsay Cedex, France
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Hsu MC, Lee J, Kishi Y. Synthetic 3-O-methylmannose-containing polysaccharides (sMMPs): design and synthesis. J Org Chem 2007; 72:1931-40. [PMID: 17274657 PMCID: PMC2526461 DOI: 10.1021/jo061991n] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
With the hope of mimicking the chemical and biological properties of natural 3-O-methylmannose-containing polysaccharides (MMPs), synthetic 3-O-methylmannose-containing polysaccharides (sMMPs) were designed and synthesized in a convergent manner. With little modification of the Mukaiyama glycosidation, high alpha-selectivity (>50:1 approximately >20:1) and yields (79 approximately 74%) were achieved for the key glycosidation steps. The exceptionally high alpha-selectivity observed was shown to be consequent to the selective anomerization of beta- to alpha-anomer under the glycosidation conditions. This glycosidation is well suited for a highly convergent oligosaccharide synthesis, particularly because of excellent chemical yields even when using approximately equal-sized donors and acceptors in an approximately 1:1 molar ratio. An iterative reaction sequence allowed the growing oligosaccharide to double in size after each cycle and led to an efficient synthesis of sMMP 8-, 12-, and 16-mers 18-20.
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Affiliation(s)
- Margaret C Hsu
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA
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Boullanger P, Chatelard P, Descotes G, Kloosterman M, Van Boom JH. Use of the Allyloxycarbonyl Protective Group in Carbohydrate Chemistry. J Carbohydr Chem 2006. [DOI: 10.1080/07328308608062974] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P. Boullanger
- a Laboratoire de Chimie Organique II , Université Lyon I , ESCIL, UA, 463, 43 Bd du 11 Novembre 1918, 69622 , Vileurbanne , France
| | - P. Chatelard
- a Laboratoire de Chimie Organique II , Université Lyon I , ESCIL, UA, 463, 43 Bd du 11 Novembre 1918, 69622 , Vileurbanne , France
| | - G. Descotes
- a Laboratoire de Chimie Organique II , Université Lyon I , ESCIL, UA, 463, 43 Bd du 11 Novembre 1918, 69622 , Vileurbanne , France
| | - M. Kloosterman
- b Gorlaeus Laboratories , P.O. Box 9502, 2300 , RA Leiden , The Netherlands
| | - J. H. Van Boom
- b Gorlaeus Laboratories , P.O. Box 9502, 2300 , RA Leiden , The Netherlands
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Hasegawa A, Ozaki M, Kiso M, Azuma I. Synthesis ofN-[2-S -(2-Acetamido-2,3-dideoxy-D-glucopyranose-3-y1)-2-Thio-D-Lactoyl]-L-alanyl-D-isoglutamine. J Carbohydr Chem 2006. [DOI: 10.1080/07328308408058824] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Valade A, Urban D, Beau JM. Target-assisted selection of galactosyltransferase binders from dynamic combinatorial libraries. An unexpected solution with restricted amounts of the enzyme. Chembiochem 2006; 7:1023-7. [PMID: 16715540 DOI: 10.1002/cbic.200600022] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anne Valade
- Université Paris-Sud, Laboratoire de Synthèse de Biomolécules associé au CNRS, Institut de Chimie Moléculaire et des Matériaux, Orsay, France
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