1
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Ghosh S, Trabbic KR, Shi M, Nishat S, Eradi P, Kleski KA, Andreana PR. Chemical synthesis and immunological evaluation of entirely carbohydrate conjugate Globo H-PS A1. Chem Sci 2020; 11:13052-13059. [PMID: 34123241 PMCID: PMC8163331 DOI: 10.1039/d0sc04595k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/15/2020] [Indexed: 12/19/2022] Open
Abstract
An anticancer, entirely carbohydrate conjugate, Globo H-polysaccharide A1 (Globo H-PS A1), was chemically prepared and immunologically evaluated in C57BL/6 mice. Tumor associated carbohydrate antigen Globo H hexasaccharide was synthesized in an overall 7.8% yield employing a convergent [3 + 3] strategy that revealed an anomeric aminooxy group used for conjugation to oxidized PS A1 via an oxime linkage. Globo H-PS A1, formulated with adjuvants monophosphoryl lipid A and TiterMax® Gold. After immunization an antigen specific immune response was observed in ELISA with anti-Globo H IgG/IgM antibodies. Specificity of the corresponding antibodies was determined by FACS showing cell surface binding to Globo H-positive cancer cell lines MCF-7 and OVCAR-5. The anti-Globo H antibodies also exhibited complement-dependent cellular cytotoxicity against MCF-7 and OVCAR-5 cells.
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Affiliation(s)
- Samir Ghosh
- The University of Toledo, Department of Chemistry and Biochemistry 2801 West Bancroft Street Toledo Ohio USA 43606
| | - Kevin R Trabbic
- The University of Toledo, Department of Chemistry and Biochemistry 2801 West Bancroft Street Toledo Ohio USA 43606
| | - Mengchao Shi
- The University of Toledo, Department of Chemistry and Biochemistry 2801 West Bancroft Street Toledo Ohio USA 43606
| | - Sharmeen Nishat
- The University of Toledo, Department of Chemistry and Biochemistry 2801 West Bancroft Street Toledo Ohio USA 43606
| | - Pradheep Eradi
- The University of Toledo, Department of Chemistry and Biochemistry 2801 West Bancroft Street Toledo Ohio USA 43606
| | - Kristopher A Kleski
- The University of Toledo, Department of Chemistry and Biochemistry 2801 West Bancroft Street Toledo Ohio USA 43606
| | - Peter R Andreana
- The University of Toledo, Department of Chemistry and Biochemistry 2801 West Bancroft Street Toledo Ohio USA 43606
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2
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Verkhnyatskaya SA, Krylov VB, Nifantiev NE. Pyranoside-into-Furanoside Rearrangement of 4-Pentenyl Glycosides in the Synthesis of a Tetrasaccharide-Related to Galactan I ofKlebsiella pneumoniae. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601413] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Stella A. Verkhnyatskaya
- Laboratory of Glycoconjugate Chemistry; N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky prospect 47 119991 Moscow Russian Federation
| | - Vadim B. Krylov
- Laboratory of Glycoconjugate Chemistry; N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky prospect 47 119991 Moscow Russian Federation
| | - Nikolay E. Nifantiev
- Laboratory of Glycoconjugate Chemistry; N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky prospect 47 119991 Moscow Russian Federation
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3
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Abstract
The present review offers an overview of nonclassical (e.g., with no pre- or in situ activation of a carboxylic acid partner) approaches for the construction of amide bonds. The review aims to comprehensively discuss relevant work, which was mainly done in the field in the last 20 years. Organization of the data follows a subdivision according to substrate classes: catalytic direct formation of amides from carboxylic and amines ( section 2 ); the use of carboxylic acid surrogates ( section 3 ); and the use of amine surrogates ( section 4 ). The ligation strategies (NCL, Staudinger, KAHA, KATs, etc.) that could involve both carboxylic acid and amine surrogates are treated separately in section 5 .
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Affiliation(s)
- Renata Marcia de Figueiredo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Simon Suppo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Marc Campagne
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
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4
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Yamazaki Y, Sezukuri K, Takada J, Kimura S, Ohmae M. A Novel Chemoenzymatic Synthesis of Sulfated Type 2 Tumor-Associated Carbohydrate Antigens by Transglycosylation of Sulfated Lewis X Oxazoline Catalyzed by Keratanase II. Chembiochem 2016; 17:1879-1886. [DOI: 10.1002/cbic.201600142] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Yuji Yamazaki
- Department of Material Chemistry; Graduate School of Engineering; Kyoto University; Kyoto-daigaku-katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Kyohei Sezukuri
- Department of Material Chemistry; Graduate School of Engineering; Kyoto University; Kyoto-daigaku-katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Junko Takada
- Department of Material Chemistry; Graduate School of Engineering; Kyoto University; Kyoto-daigaku-katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Shunsaku Kimura
- Department of Material Chemistry; Graduate School of Engineering; Kyoto University; Kyoto-daigaku-katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Masashi Ohmae
- Department of Material Chemistry; Graduate School of Engineering; Kyoto University; Kyoto-daigaku-katsura Nishikyo-ku Kyoto 615-8510 Japan
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5
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Ghosh S, Nishat S, Andreana PR. Synthesis of an Aminooxy Derivative of the Tetrasaccharide Repeating Unit of Streptococcus dysgalactiae 2023 Polysaccharide for a PS A1 Conjugate Vaccine. J Org Chem 2016; 81:4475-84. [DOI: 10.1021/acs.joc.6b00195] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Samir Ghosh
- Department of Chemistry and Biochemistry and School of Green Chemistry
and Engineering, University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Sharmeen Nishat
- Department of Chemistry and Biochemistry and School of Green Chemistry
and Engineering, University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Peter R. Andreana
- Department of Chemistry and Biochemistry and School of Green Chemistry
and Engineering, University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
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6
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Santra A, Yu H, Tasnima N, Muthana MM, Li Y, Zeng J, Kenyond NJ, Louie AY, Chen X. Systematic Chemoenzymatic Synthesis of O-Sulfated Sialyl Lewis x Antigens. Chem Sci 2016; 7:2827-2831. [PMID: 28138383 PMCID: PMC5269574 DOI: 10.1039/c5sc04104j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 12/14/2015] [Indexed: 11/21/2022] Open
Abstract
O-Sulfated sialyl Lewis x antigens play important roles in nature. However, due to their structural complexity, they are not readily accessible by either chemical or enzymatic synthetic processes. Taking advantage of a bacterial sialyltransferase mutant that can catalyze the transfer of different sialic acid forms from the corresponding sugar nucleotide donors to Lewis x antigens which are fucosylated glycans as well as an efficient one-pot multienzyme (OPME) sialylation system, O-sulfated sialyl Lewis x antigens containing different sialic acid forms and O-sulfation at different locations were systematically synthesized by chemoenzymatic methods.
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Affiliation(s)
- Abhishek Santra
- Department of Chemistry, University of California, Davis One Shields Avenue, Davis, CA 95616 (USA)
| | - Hai Yu
- Department of Chemistry, University of California, Davis One Shields Avenue, Davis, CA 95616 (USA)
| | - Nova Tasnima
- Department of Chemistry, University of California, Davis One Shields Avenue, Davis, CA 95616 (USA)
| | - Musleh M Muthana
- Department of Chemistry, University of California, Davis One Shields Avenue, Davis, CA 95616 (USA)
| | - Yanhong Li
- Department of Chemistry, University of California, Davis One Shields Avenue, Davis, CA 95616 (USA)
| | - Jie Zeng
- Department of Chemistry, University of California, Davis One Shields Avenue, Davis, CA 95616 (USA) ; School of Food Science, Henan Institute of Science and Technology, Xinxiang, 453003 (China)
| | - Nicholas J Kenyond
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of California, Davis, CA 95616 (USA)
| | - Angelique Y Louie
- Department of Biomedical Engineering, University of California, Davis, CA 95616 (USA)
| | - Xi Chen
- Department of Chemistry, University of California, Davis One Shields Avenue, Davis, CA 95616 (USA)
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7
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Yamazaki Y, Sezukuri K, Takada J, Obata H, Kimura S, Ohmae M. Synthesis of type 2 Lewis antigens via novel regioselective glycosylation of an orthogonally protected lactosamine diol derivative. Carbohydr Res 2016; 422:34-44. [DOI: 10.1016/j.carres.2016.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/12/2016] [Accepted: 01/13/2016] [Indexed: 11/30/2022]
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8
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Jana S, Emmadi M, Kulkarni SS. First Synthesis of the α- L-Serine Linked Consensus Disaccharide of Neisseria gonorrhoeaeand Neisseria meningitidis. Isr J Chem 2015. [DOI: 10.1002/ijch.201400152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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9
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Emmadi M, Kulkarni SS. Total synthesis of the bacillosamine containing α-l-serine linked trisaccharide of Neisseria meningitidis. Carbohydr Res 2014; 399:57-63. [DOI: 10.1016/j.carres.2014.04.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 04/15/2014] [Accepted: 04/16/2014] [Indexed: 12/18/2022]
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10
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Pett C, Westerlind U. A convergent strategy for the synthesis of type-1 elongated mucin cores 1-3 and the corresponding glycopeptides. Chemistry 2014; 20:7287-99. [PMID: 24842272 DOI: 10.1002/chem.201400162] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Indexed: 01/08/2023]
Abstract
Mucins are a class of highly O-glycosylated proteins found on the surface of cells in epithelial tissues. O-Glycosylation is crucial for the functionality of mucins and changes therein can have severe consequences for an organism. With that in mind, the elucidation of interactions of carbohydrate binding proteins with mucins, whether in morbidly altered or unaltered conditions, continue to shed light on mechanisms involved in diseases like chronic inflammations and cancer. Despite the known importance of type-1 and type-2 elongated mucin cores 1-4 in glycobiology, the corresponding type-1 structures are much less well studied. Here, the first chemical synthesis of extended mucin type-1 O-glycan core 1-3 amino acid structures based on a convergent approach is presented. By utilizing differentiation in acceptor reactivity, shared early stage Tn- and T-acceptor intermediates were elongated with a common type-1 [β-D-Gal-1,3-β-D-GlcNAc] disaccharide, which allows for straightforward preparation of diverse glycosylated amino acids carrying the type-1 mucin core 1-3 saccharides. The obtained glycosylated 9-fluorenylmethoxycarbonyl (Fmoc)-protected amino acid building blocks were employed in synthesis of type-1 mucin glycopeptides, which are useful in biological applications.
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Affiliation(s)
- Christian Pett
- Gesellschaft zur Förderung der Analytischen Wissenschaften e.V. ISAS, Leibniz Institute for Analytical Sciences, Otto-Hahn-Str. 6b, 44227 Dortmund (Germany)
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11
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Sanapala SR, Kulkarni SS. Chemical synthesis of asparagine-linked archaeal N-glycan from Methanothermus fervidus. Chemistry 2014; 20:3578-83. [PMID: 24616211 DOI: 10.1002/chem.201304950] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/02/2014] [Indexed: 12/12/2022]
Abstract
Several N-linked glycoproteins have been identified in archaea and there is growing evidence that the N-glycan is involved in survival and functioning of archaea in extreme conditions. Chemical synthesis of the archaeal N-glycans represents a crucial step towards understanding the putative function of protein glycosylation in archaea. Herein the first total synthesis of the archaeal L-asparagine linked hexasaccharide from Methanothermus fervidus is reported using a highly convergent [3+3] glycosylation approach in high overall yields. The synthesis relies on efficient preparation of regioselectively protected thioglycoside building blocks for orthogonal glycosylations and late stage N-aspartylation.
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Affiliation(s)
- Someswara Rao Sanapala
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076 (India)
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12
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Adak S, Emmadi M, Kulkarni SS. Synthesis of the trisaccharide moiety and a cholesteryl analog of phyteumosides. RSC Adv 2014. [DOI: 10.1039/c3ra47523a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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13
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Abstract
MECA-79 antigen is a sulfated mucin type core-1 extended O-glycan which is a potential anti-inflammatory agent. Herein we report a total synthesis of MECA-79 via a convergent [2 + 2] glycosylation routethrough the intermediacy of Tn and TF antigens.
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Affiliation(s)
| | - Madhu Emmadi
- Department of Chemistry
- Indian Institute of Technology-Bombay
- Mumbai, India
| | - Suvarn S. Kulkarni
- Department of Chemistry
- Indian Institute of Technology-Bombay
- Mumbai, India
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14
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Pett C, Schorlemer M, Westerlind U. A unified strategy for the synthesis of mucin cores 1-4 saccharides and the assembled multivalent glycopeptides. Chemistry 2013; 19:17001-10. [PMID: 24307362 DOI: 10.1002/chem.201302921] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Indexed: 01/02/2023]
Abstract
By displaying different O-glycans in a multivalent mode, mucin and mucin-like glycoproteins are involved in a plethora of protein binding events. The understanding of the roles of the glycans and the identification of potential glycan binding proteins are major challenges. To enable future binding studies of mucin glycan and glycopeptide probes, a method that gives flexible and efficient access to all common mucin core-glycosylated amino acids was developed. Based on a convergent synthesis strategy starting from a shared early stage intermediate by differentiation in the glycoside acceptor reactivity, a common disaccharide building block allows for the creation of extended glycosylated amino acids carrying the mucin type-2 cores 1-4 saccharides. Formation of a phenyl-sulfenyl-N-Troc (Troc=trichloroethoxycarbonyl) byproduct during N-iodosuccinimide-promoted thioglycoside couplings was further characterized and a new methodology for the removal of the Troc group is described. The obtained glycosylated 9-fluorenylmethoxycarbonyl (Fmoc)-protected amino acid building blocks are incorporated into peptides for multivalent glycan display.
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Affiliation(s)
- Christian Pett
- Gesellschaft zur Förderung der Analytischen, Wissenschaften e.V. ISAS-Leibniz, Institute for Analytical Sciences, Otto-Hahn-Strasse 6b, 44227 Dortmund (Germany), Fax: (+49) 231-1392-4850
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15
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Li Q, Yan TT, Niu S, Zhao YT, Meng XB, Zhao ZH, Li ZJ. Synthesis of a series of multivalent homo-, and heteroglycosides and their anti-adhesion activities. Carbohydr Res 2013; 379:78-94. [DOI: 10.1016/j.carres.2013.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/13/2013] [Accepted: 06/14/2013] [Indexed: 11/25/2022]
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16
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Tu Z, Hsieh HW, Tsai CM, Hsu CW, Wang SG, Wu KJ, Lin KI, Lin CH. Synthesis and Characterization of Sulfated Gal-β-1,3/4-GlcNAc Disaccharides through Consecutive Protection/Glycosylation Steps. Chem Asian J 2013; 8:1536-50. [DOI: 10.1002/asia.201201204] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 03/06/2013] [Indexed: 01/22/2023]
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17
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Chang SM, Tu Z, Jan HM, Pan JF, Lin CH. Rapid synthesis of oligomannosides with orthogonally protected monosaccharides. Chem Commun (Camb) 2012; 49:4265-7. [PMID: 23124079 DOI: 10.1039/c2cc37099a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We developed a facile synthesis to yield orthogonally protected mannose building blocks with high overall yields. The protection/glycosylation steps can be carried out in a successive manner without purification of intermediate products. This developed synthesis led to formation of linear/branched tri-, penta- and heptasaccharides.
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Affiliation(s)
- Sue-Ming Chang
- Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
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18
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Hsu CH, Hung SC, Wu CY, Wong CH. Toward automated oligosaccharide synthesis. Angew Chem Int Ed Engl 2011; 50:11872-923. [PMID: 22127846 DOI: 10.1002/anie.201100125] [Citation(s) in RCA: 205] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Indexed: 12/16/2022]
Abstract
Carbohydrates have been shown to play important roles in biological processes. The pace of development in carbohydrate research is, however, relatively slow due to the problems associated with the complexity of carbohydrate structures and the lack of general synthetic methods and tools available for the study of this class of biomolecules. Recent advances in synthesis have demonstrated that many of these problems can be circumvented. In this Review, we describe the methods developed to tackle the problems of carbohydrate-mediated biological processes, with particular focus on the issue related to the development of the automated synthesis of oligosaccharides. Further applications of carbohydrate microarrays and vaccines to human diseases are also highlighted.
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Affiliation(s)
- Che-Hsiung Hsu
- The Genomics Research Center, Academia Sinica, Taipei, Taiwan
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19
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Hsu CH, Hung SC, Wu CY, Wong CH. Auf dem Weg zur automatisierten Oligosaccharid- Synthese. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100125] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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20
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Arata-Kawai H, Singer MS, Bistrup A, Zante AV, Wang YQ, Ito Y, Bao X, Hemmerich S, Fukuda M, Rosen SD. Functional contributions of N- and O-glycans to L-selectin ligands in murine and human lymphoid organs. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 178:423-33. [PMID: 21224079 DOI: 10.1016/j.ajpath.2010.11.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/08/2010] [Indexed: 12/23/2022]
Abstract
L-selectin initiates lymphocyte interactions with high endothelial venules (HEVs) of lymphoid organs through binding to ligands with specific glycosylation modifications. 6-Sulfo sLe(x), a sulfated carbohydrate determinant for L-selectin, is carried on core 2 and extended core 1 O-glycans of HEV-expressed glycoproteins. The MECA-79 monoclonal antibody recognizes sulfated extended core 1 O-glycans and partially blocks lymphocyte-HEV interactions in lymphoid organs. Recent evidence has identified the contribution of 6-sulfo sLe(x) carried on N-glycans to lymphocyte homing in mice. Here, we characterize CL40, a novel IgG monoclonal antibody. CL40 equaled or surpassed MECA-79 as a histochemical staining reagent for HEVs and HEV-like vessels in mouse and human. Using synthetic carbohydrates, we found that CL40 bound to 6-sulfo sLe(x) structures, on both core 2 and extended core 1 structures, with an absolute dependency on 6-O-sulfation. Using transfected CHO cells and gene-targeted mice, we observed that CL40 bound its epitope on both N-glycans and O-glycans. Consistent with its broader glycan-binding, CL40 was superior to MECA-79 in blocking lymphocyte-HEV interactions in both wild-type mice and mice deficient in forming O-glycans. This superiority was more marked in human, as CL40 completely blocked lymphocyte binding to tonsillar HEVs, whereas MECA-79 inhibited only 60%. These findings extend the evidence for the importance of N-glycans in lymphocyte homing in mouse and indicate that this dependency also applies to human lymphoid organs.
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Affiliation(s)
- Hanayo Arata-Kawai
- Department of Anatomy, University of California, San Francisco, California 94143-0452, USA
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21
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Vohra Y, Buskas T, Boons GJ. Rapid assembly of oligosaccharides: a highly convergent strategy for the assembly of a glycosylated amino acid derived from PSGL-1. J Org Chem 2010; 74:6064-71. [PMID: 19606831 DOI: 10.1021/jo901135k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
P-Selectin and P-selectin glycoprotein ligand 1 (PSGL-1) are vascular adhesion molecules that play an important role in the recruitment of leukocytes to inflamed tissue by establishing leukocyte-endothelial and leukocyte-platelet interaction. P-Selectin binds to the amino-terminus of PSGL-1 through recognition of a sialyl Lewis(x) (SLe(x)) moiety linked to a properly positioned core-2 O-glycan and three tyrosine sulfate residues. We have developed a highly convergent synthesis of the PSGL-1 oligosaccharide linked to threonine based on the use of trichoroacetimidate donors and thioglycosyl acceptors that give products that can immediately be employed in a subsequent glycosylation step without the need for protecting group manipulations. Furthermore, by employing one-pot multistep glycosylation sequences the number of purification steps could be minimized. The process of oligosaccharide assembly was further streamlined by combining protecting group manipulations and glycosylations as a one-pot multistep synthetic procedure. The resulting PSGL-1 oligosaccharide is properly protected for glycopeptide assembly. It is to be expected that the strategic principles employed for the synthesis of the target compound can be applied for the preparation of other complex oligosaccharides of biological and medical importance.
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Affiliation(s)
- Yusuf Vohra
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, USA
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22
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Zhang L, Lau K, Cheng J, Yu H, Li Y, Sugiarto G, Huang S, Ding L, Thon V, Wang PG, Chen X. Helicobacter hepaticus Hh0072 gene encodes a novel alpha1-3-fucosyltransferase belonging to CAZy GT11 family. Glycobiology 2010; 20:1077-88. [PMID: 20466652 DOI: 10.1093/glycob/cwq068] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Lewis x (Le(x)) and sialyl Lewis x (SLe(x))-containing glycans play important roles in numerous physiological and pathological processes. The key enzyme for the final step formation of these Lewis antigens is alpha1-3-fucosyltransferase. Here we report molecular cloning and functional expression of a novel Helicobacter hepaticus alpha1-3-fucosyltransferase (HhFT1) which shows activity towards both non-sialylated and sialylated Type II oligosaccharide acceptor substrates. It is a promising catalyst for enzymatic and chemoenzymatic synthesis of Le(x), sialyl Le(x) and their derivatives. Unlike all other alpha1-3/4-fucosyltransferases characterized so far which belong to Carbohydrate Active Enzyme (CAZy, http://www.cazy.org/) glycosyltransferase family GT10, the HhFT1 shares protein sequence homology with alpha1-2-fucosyltransferases and belongs to CAZy glycosyltransferase family GT11. The HhFT1 is thus the first alpha1-3-fucosyltransferase identified in the GT11 family.
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Affiliation(s)
- Lei Zhang
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA
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23
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Pudelko M, Bull J, Kunz H. Chemical and Chemoenzymatic Synthesis of Glycopeptide Selectin Ligands Containing Sialyl Lewis X Structures. Chembiochem 2010; 11:904-30. [DOI: 10.1002/cbic.201000029] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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24
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Radhakrishnan P, Lin MF, Cheng PW. Elevated expression of L-selectin ligand in lymph node-derived human prostate cancer cells correlates with increased tumorigenicity. Glycoconj J 2009; 26:75-81. [PMID: 18670876 PMCID: PMC2775476 DOI: 10.1007/s10719-008-9167-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Revised: 06/19/2008] [Accepted: 06/23/2008] [Indexed: 01/03/2023]
Abstract
Human prostate cancer LNCaP cells including C-33 and C-81 cells were originally derived from the lymph nodes of a patient with metastatic prostate cancer. These two cells were employed for characterization of L-selectin ligand and in vitro tumorigenicity, because they mimic the clinical conditions of early and late-stage human prostate cancer. C-81 cells exhibit higher in vitro migratory and invasive properties as compared with C-33 cells. We find that the L-selectin ligand and mucin glycan-associated MECA-79 epitope were elevated in C-81 cells. An increase of these glycotopes positively correlates with elevated tumorigenicity and expression of key glycosyl- and sulfotransferase genes. These results suggest that modulated expression of selective glycogenes correlates with altered tumorigenicity of cancer cells.
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Affiliation(s)
- Prakash Radhakrishnan
- Department of Biochemistry and Molecular Biology, College of Medicine, 985870, Nebraska Medical Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ming-Fong Lin
- Department of Biochemistry and Molecular Biology, College of Medicine, 985870, Nebraska Medical Center, University of Nebraska Medical Center, Omaha, NE 68198, USA, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - Pi-Wan Cheng
- Department of Biochemistry and Molecular Biology, College of Medicine, 985870, Nebraska Medical Center, University of Nebraska Medical Center, Omaha, NE 68198, USA, , Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
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Schoonbroodt S, Steukers M, Viswanathan M, Frans N, Timmermans M, Wehnert A, Nguyen M, Ladner RC, Hoet RM. Engineering Antibody Heavy Chain CDR3 to Create a Phage Display Fab Library Rich in Antibodies That Bind Charged Carbohydrates. THE JOURNAL OF IMMUNOLOGY 2008; 181:6213-21. [DOI: 10.4049/jimmunol.181.9.6213] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Carbohydrate modification is a common phenomenon in nature. Many carbohydrate modifications such as some epimerization, O-acetylation, O-sulfation, O-methylation, N-deacetylation, and N-sulfation, take place after the formation of oligosaccharide or polysaccharide backbones. These modifications can be categorized as carbohydrate post-glycosylational modifications (PGMs). Carbohydrate PGMs further extend the complexity of the structures and the synthesis of carbohydrates and glycoconjugates. They also increase the capacity of the biological regulation that is achieved by finely tuning the structures of carbohydrates. Developing efficient methods to obtain structurally defined naturally occurring oligosaccharides, polysaccharides, and glycoconjugates with carbohydrate PGMs is essential for understanding the biological significance of carbohydrate PGMs. Combined with high-throughput screening methods, synthetic carbohydrates with PGMs are invaluable probes in structure-activity relationship studies. We illustrate here several classes of carbohydrates with PGMs and their applications. Recent progress in chemical, enzymatic, and chemoenzymatic syntheses of these carbohydrates and their derivatives are also presented.
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Affiliation(s)
| | - Xi Chen
- Department of Chemistry, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA. Fax: 01 530 752 8995; Tel: 01 530 754 6037; E-mail:
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Yang J, Rosen SD, Bendele P, Hemmerich S. Induction of PNAd and N-acetylglucosamine 6-O-sulfotransferases 1 and 2 in mouse collagen-induced arthritis. BMC Immunol 2006; 7:12. [PMID: 16772045 PMCID: PMC1533857 DOI: 10.1186/1471-2172-7-12] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2006] [Accepted: 06/13/2006] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Leukocyte recruitment across blood vessels is fundamental to immune surveillance and inflammation. Lymphocyte homing to peripheral lymph nodes is mediated by the adhesion molecule, L-selectin, which binds to sulfated carbohydrate ligands on high endothelial venules (HEV). These glycoprotein ligands are collectively known as peripheral node addressin (PNAd), as defined by the function-blocking monoclonal antibody known as MECA-79. The sulfation of these ligands depends on the action of two HEV-expressed N-acetylglucosamine 6-O-sulfotransferases: GlcNAc6ST-2 and to a lesser degree GlcNAc6ST-1. Induction of PNAd has also been shown to occur in a number of human inflammatory diseases including rheumatoid arthritis (RA). RESULTS In order to identify an animal model suitable for investigating the role of PNAd in chronic inflammation, we examined the expression of PNAd as well as GlcNAc6ST-1 and -2 in collagen-induced arthritis in mice. Here we show that PNAd is expressed in the vasculature of arthritic synovium in mice immunized with collagen but not in the normal synovium of control animals. This de novo expression of PNAd correlates strongly with induction of transcripts for both GlcNAc6ST-1 and GlcNAc6ST-2, as well as the expression of GlcNAc6ST-2 protein. CONCLUSION Our results demonstrate that PNAd and the sulfotransferases GlcNAc6ST-1 and 2 are induced in mouse collagen-induced arthritis and suggest that PNAd antagonists or inhibitors of the enzymes may have therapeutic benefit in this widely-used mouse model of RA.
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Affiliation(s)
- Jiwei Yang
- Thios Pharmaceuticals Inc., P.O. Box 20010, Oakland, CA 94620, USA
- Current Address: Geron Corporation, 230 Constitution Drive, Menlo Park, CA 94025, USA
| | - Steven D Rosen
- Department of Anatomy and Program in Immunology, University of California, Box 0452, San Francisco, CA 94143, USA
| | - Philip Bendele
- Bolder BioPATH Inc., University of Colorado, CB 345, Boulder, CO 80309, USA
| | - Stefan Hemmerich
- Thios Pharmaceuticals Inc., P.O. Box 20010, Oakland, CA 94620, USA
- Current Address: Y's Therapeutics Inc., 866 Malcolm Rd., Suite no.100, Burlingame, CA 94010, USA
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Rowan AS, Hamilton CJ. Recent developments in preparative enzymatic syntheses of carbohydrates. Nat Prod Rep 2006; 23:412-43. [PMID: 16741587 DOI: 10.1039/b409898f] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Andrew S Rowan
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building
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