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Lembo A, Molinaro A, De Castro C, Berti F, Biagini M. Impact of glycosylation on viral vaccines. Carbohydr Polym 2024; 342:122402. [PMID: 39048237 DOI: 10.1016/j.carbpol.2024.122402] [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: 02/26/2024] [Revised: 05/24/2024] [Accepted: 06/11/2024] [Indexed: 07/27/2024]
Abstract
Glycosylation is the most prominent modification important for vaccines and its specific pattern depends on several factors that need to be considered when developing a new biopharmaceutical. Tailor-made glycosylation can be exploited to develop more effective and safer vaccines; for this reason, a deep understanding of both glycoengineering strategies and glycans structures and functions is required. In this review we discuss the recent advances concerning glycoprotein expression systems and the explanation of glycans immunomodulation mechanisms. Furthermore, we highlight how glycans tune the immunological properties among different vaccines platforms (whole virus, recombinant protein, nucleic acid), also comparing commercially available formulations and describing the state-of-the-art analytical technologies for glycosylation analysis. The whole review stresses the aspect of glycoprotein glycans as a potential tool to overcome nowadays medical needs in vaccine field.
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Affiliation(s)
- Antonio Lembo
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy; GSK, Siena, Italy
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Cristina De Castro
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy.
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2
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Marglous S, Brown CE, Padler-Karavani V, Cummings RD, Gildersleeve JC. Serum antibody screening using glycan arrays. Chem Soc Rev 2024; 53:2603-2642. [PMID: 38305761 PMCID: PMC7616341 DOI: 10.1039/d3cs00693j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Humans and other animals produce a diverse collection of antibodies, many of which bind to carbohydrate chains, referred to as glycans. These anti-glycan antibodies are a critical part of our immune systems' defenses. Whether induced by vaccination or natural exposure to a pathogen, anti-glycan antibodies can provide protection against infections and cancers. Alternatively, when an immune response goes awry, antibodies that recognize self-glycans can mediate autoimmune diseases. In any case, serum anti-glycan antibodies provide a rich source of information about a patient's overall health, vaccination history, and disease status. Glycan microarrays provide a high-throughput platform to rapidly interrogate serum anti-glycan antibodies and identify new biomarkers for a variety of conditions. In addition, glycan microarrays enable detailed analysis of the immune system's response to vaccines and other treatments. Herein we review applications of glycan microarray technology for serum anti-glycan antibody profiling.
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Affiliation(s)
- Samantha Marglous
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA.
| | - Claire E Brown
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA.
| | - Vered Padler-Karavani
- Department of Cell Research and Immunology, Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 69978, Israel.
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02115, USA.
| | - Jeffrey C Gildersleeve
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA.
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3
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Eckmair B, Gao C, Mehta AY, Dutkiewicz Z, Vanbeselaere J, Cummings RD, Paschinger K, Wilson IBH. Recognition of Highly Branched N-Glycans of the Porcine Whipworm by the Immune System. Mol Cell Proteomics 2024; 23:100711. [PMID: 38182041 PMCID: PMC10850124 DOI: 10.1016/j.mcpro.2024.100711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/14/2023] [Accepted: 01/02/2024] [Indexed: 01/07/2024] Open
Abstract
Glycans are key to host-pathogen interactions, whereby recognition by the host and immunomodulation by the pathogen can be mediated by carbohydrate binding proteins, such as lectins of the innate immune system, and their glycoconjugate ligands. Previous studies have shown that excretory-secretory products of the porcine nematode parasite Trichuris suis exert immunomodulatory effects in a glycan-dependent manner. To better understand the mechanisms of these interactions, we prepared N-glycans from T. suis and both analyzed their structures and used them to generate a natural glycan microarray. With this array, we explored the interactions of glycans with C-type lectins, C-reactive protein, and sera from T. suis-infected pigs. Glycans containing LacdiNAc and phosphorylcholine-modified glycans were associated with the highest binding by most of these proteins. In-depth analysis revealed not only fucosylated LacdiNAc motifs with and without phosphorylcholine moieties but phosphorylcholine-modified mannose and N-acetylhexosamine-substituted fucose residues, in the context of maximally tetraantennary N-glycan scaffolds. Furthermore, O-glycans also contained fucosylated motifs. In summary, the glycans of T. suis are recognized by both the innate and adaptive immune systems and also exhibit species-specific features distinguishing its glycome from those of other nematodes.
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Affiliation(s)
- Barbara Eckmair
- Department für Chemie, Institut für Biochemie, Universität für Bodenkultur, Wien, Austria
| | - Chao Gao
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Akul Y Mehta
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Zuzanna Dutkiewicz
- Department für Chemie, Institut für Biochemie, Universität für Bodenkultur, Wien, Austria
| | - Jorick Vanbeselaere
- Department für Chemie, Institut für Biochemie, Universität für Bodenkultur, Wien, Austria
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Katharina Paschinger
- Department für Chemie, Institut für Biochemie, Universität für Bodenkultur, Wien, Austria
| | - Iain B H Wilson
- Department für Chemie, Institut für Biochemie, Universität für Bodenkultur, Wien, Austria.
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4
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Zwanenburg L, Borloo J, Decorte B, Bunte MJM, Mokhtari S, Serna S, Reichardt NC, Seys LJM, van Diepen A, Schots A, Wilbers RHP, Hokke CH, Claerebout E, Geldhof P. Plant-based production of a protective vaccine antigen against the bovine parasitic nematode Ostertagia ostertagi. Sci Rep 2023; 13:20488. [PMID: 37993516 PMCID: PMC10665551 DOI: 10.1038/s41598-023-47480-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023] Open
Abstract
The development of effective recombinant vaccines against parasitic nematodes has been challenging and so far mostly unsuccessful. This has also been the case for Ostertagia ostertagi, an economically important abomasal nematode in cattle, applying recombinant versions of the protective native activation-associated secreted proteins (ASP). To gain insight in key elements required to trigger a protective immune response, the protein structure and N-glycosylation of the native ASP and a non-protective Pichia pastoris recombinant ASP were compared. Both antigens had a highly comparable protein structure, but different N-glycan composition. After mimicking the native ASP N-glycosylation via the expression in Nicotiana benthamiana plants, immunisation of calves with these plant-produced recombinants resulted in a significant reduction of 39% in parasite egg output, comparable to the protective efficacy of the native antigen. This study provides a valuable workflow for the development of recombinant vaccines against other parasitic nematodes.
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Affiliation(s)
- Laurens Zwanenburg
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Jimmy Borloo
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Bregt Decorte
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Myrna J M Bunte
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Sanaz Mokhtari
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Sonia Serna
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia San Sebastián, Spain
- CIBER-BBN, Paseo Miramón 194, 20014, San Sebastian, Spain
| | - Niels-C Reichardt
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia San Sebastián, Spain
- CIBER-BBN, Paseo Miramón 194, 20014, San Sebastian, Spain
| | - Leen J M Seys
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Arjen Schots
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Ruud H P Wilbers
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Cornelis H Hokke
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Edwin Claerebout
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Peter Geldhof
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium.
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Lossio CF, Osterne VJS, Pinto-Junior VR, Chen S, Oliveira MV, Verduijn J, Verbeke I, Serna S, Reichardt NC, Skirtach A, Cavada BS, Van Damme EJM, Nascimento KS. Structural Analysis and Characterization of an Antiproliferative Lectin from Canavalia villosa Seeds. Int J Mol Sci 2023; 24:15966. [PMID: 37958949 PMCID: PMC10649158 DOI: 10.3390/ijms242115966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Cells use glycans to encode information that modulates processes ranging from cell-cell recognition to programmed cell death. This information is encoded within a glycocode, and its decoding is performed by carbohydrate-binding proteins. Among these, lectins stand out due to their specific and reversible interaction with carbohydrates. Changes in glycosylation patterns are observed in several pathologies, including cancer, where abnormal glycans are found on the surfaces of affected tissues. Given the importance of the bioprospection of promising biomolecules, the current work aimed to determine the structural properties and anticancer potential of the mannose-specific lectin from seeds of Canavalia villosa (Cvill). Experimental elucidation of the primary and 3D structures of the lectin, along with glycan array and molecular docking, facilitated the determination of its fine carbohydrate-binding specificity. These structural insights, coupled with the lectin's specificity, have been combined to explain the antiproliferative effect of Cvill against cancer cell lines. This effect is dependent on the carbohydrate-binding activity of Cvill and its uptake in the cells, with concomitant activation of autophagic and apoptotic pathways.
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Affiliation(s)
- Claudia F. Lossio
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-970, Brazil (B.S.C.)
| | - Vinicius J. S. Osterne
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-970, Brazil (B.S.C.)
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Vanir R. Pinto-Junior
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-970, Brazil (B.S.C.)
- Department of Physics, Federal University of Ceara, Fortaleza 60440-970, Brazil
| | - Simin Chen
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Messias V. Oliveira
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-970, Brazil (B.S.C.)
| | - Joost Verduijn
- Nano-Biotechnology Group, Department of Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Isabel Verbeke
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Sonia Serna
- Glycotechnology Lab, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014 Donostia-San Sebastián, Spain
| | - Niels C. Reichardt
- Glycotechnology Lab, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014 Donostia-San Sebastián, Spain
- Centro de Investigación Biomédica en Red (CIBER-BBN), Paseo de Miramon 194, 20014 Donostia-San Sebastián, Spain
| | - Andre Skirtach
- Nano-Biotechnology Group, Department of Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Benildo S. Cavada
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-970, Brazil (B.S.C.)
| | - Els J. M. Van Damme
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Kyria S. Nascimento
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-970, Brazil (B.S.C.)
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6
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Eckmair B, Gao C, Mehta AY, Dutkiewicz Z, Vanbeselaere J, Cummings RD, Paschinger K, Wilson IBH. Recognition of highly branched N-glycans of the porcine whipworm by the immune system. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.21.557549. [PMID: 37790353 PMCID: PMC10542551 DOI: 10.1101/2023.09.21.557549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Glycans are key to host-pathogen interactions, whereby recognition by the host and immunomodulation by the pathogen can be mediated by carbohydrate binding proteins, such as lectins of the innate immune system, and their glycoconjugate ligands. Previous studies have shown that excretory-secretory products of the porcine nematode parasite Trichuris suis exert immunomodulatory effects in a glycan-dependent manner. To better understand the mechanisms of these interactions, we prepared N-glycans from T. suis and both analyzed their structures and used them to generate a natural glycan microarray. With this array we explored the interactions of glycans with C-type lectins, C-reactive protein and sera from T. suis infected pigs. Glycans containing LacdiNAc and phosphorylcholine-modified glycans were associated with the highest binding by most of these proteins. In-depth analysis revealed not only fucosylated LacdiNAc motifs with and without phosphorylcholine moieties, but phosphorylcholine-modified mannose and N-acetylhexosamine-substituted fucose residues, in the context of maximally tetraantennary N-glycan scaffolds. Furthermore, O-glycans also contained fucosylated motifs. In summary, the glycans of T. suis are recognized by both the innate and adaptive immune systems, and also exhibit species-specific features distinguishing its glycome from those of other nematodes.
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Affiliation(s)
- Barbara Eckmair
- Institut für Biochemie, Department für Chemie, Universität für Bodenkultur, Muthgasse 18, 1190 Wien, Austria
| | - Chao Gao
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Akul Y Mehta
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Zuzanna Dutkiewicz
- Institut für Biochemie, Department für Chemie, Universität für Bodenkultur, Muthgasse 18, 1190 Wien, Austria
| | - Jorick Vanbeselaere
- Institut für Biochemie, Department für Chemie, Universität für Bodenkultur, Muthgasse 18, 1190 Wien, Austria
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Katharina Paschinger
- Institut für Biochemie, Department für Chemie, Universität für Bodenkultur, Muthgasse 18, 1190 Wien, Austria
| | - Iain B H Wilson
- Institut für Biochemie, Department für Chemie, Universität für Bodenkultur, Muthgasse 18, 1190 Wien, Austria
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Prasanphanich NS, Leon K, Secor WE, Shoemaker CB, Heimburg-Molinaro J, Cummings RD. Anti-schistosomal immunity to core xylose/fucose in N-glycans. Front Mol Biosci 2023; 10:1142620. [PMID: 37081851 PMCID: PMC10110957 DOI: 10.3389/fmolb.2023.1142620] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/20/2023] [Indexed: 04/07/2023] Open
Abstract
Schistosomiasis is a globally prevalent, debilitating disease that is poorly controlled by chemotherapy and for which no vaccine exists. While partial resistance in people may develop over time with repeated infections and treatments, some animals, including the brown rat (Rattus norvegicus), are only semi-permissive and have natural protection. To understand the basis of this protection, we explored the nature of the immune response in the brown rat to infection by Schistosoma mansoni. Infection leads to production of IgG to Infection leads to production of IgG to parasite glycoproteins parasite glycoproteins with complex-type N-glycans that contain a non-mammalian-type modification by core α2-Xylose and core α3-Fucose (core Xyl/Fuc). These epitopes are expressed on the surfaces of schistosomula and adult worms. Importantly, IgG to these epitopes can kill schistosomula by a complement-dependent process in vitro. Additionally, sera from both infected rhesus monkey and infected brown rat were capable of killing schistosomula in a manner inhibited by glycopeptides containing core Xyl/Fuc. These results demonstrate that protective antibodies to schistosome infections in brown rats and rhesus monkeys include IgG responses to the core Xyl/Fuc epitopes in surface-expressed N-glycans, and raise the potential of novel glyco-based vaccines that might be developed to combat this disease.
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Affiliation(s)
| | - Kristoffer Leon
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, United States
| | - W. Evan Secor
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Charles B. Shoemaker
- Department of Infectious Disease and Global Health, Tufts University Cummings School of Veterinary Medicine, North Grafton, MA, United States
| | - Jamie Heimburg-Molinaro
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, United States
- National Center for Functional Glycomics, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Richard D. Cummings
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, United States
- National Center for Functional Glycomics, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- *Correspondence: Richard D. Cummings,
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Krammer EM, Bridot C, Serna S, Echeverria B, Semwal S, Roubinet B, van Noort K, Wilbers RP, Bourenkov G, de Ruyck J, Landemarre L, Reichardt N, Bouckaert J. Structural insights into a cooperative switch between one and two FimH bacterial adhesins binding pauci- and high-mannose type N-glycan receptors. J Biol Chem 2023; 299:104627. [PMID: 36944399 PMCID: PMC10127133 DOI: 10.1016/j.jbc.2023.104627] [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: 09/10/2022] [Revised: 03/06/2023] [Accepted: 03/14/2023] [Indexed: 03/22/2023] Open
Abstract
The FimH type-1 fimbrial adhesin allows pathogenic Escherichia coli to adhere to glycoproteins in the epithelial linings of human bladder and intestinal tract, by using multiple fimbriae simultaneously. Pauci- and high-mannose type N-glycans are natural FimH receptors on those glycoproteins. Oligomannose-3 and -5 bind with the highest affinity to FimH by using the same Manα1,3Man branch. Oligomannose-6 is generated from oligomannose-5 in the next step of the biogenesis of high-mannose N-glycans, by the transfer of a mannose in α1,2-linkage onto this branch. Using serial crystallography and by measuring the kinetics of binding, we demonstrate that shielding the high-affinity epitope drives the binding of multiple FimH molecules. First, we profiled FimH glycan binding on a microarray containing paucimannosidic N-glycans and in a FimH LEctPROFILE® assay. To make the transition to oligomannose-6, we measured the kinetics of FimH binding using paucimannosidic N-glycans, glycoproteins and all four α-dimannosides conjugated to bovine serum albumin. Equimolar mixed interfaces of the dimannosides present in oligomannose-6 and molecular dynamics simulations suggest a positive cooperativity in the bivalent binding of Manα1,3Manα1 and Manα1,6Manα1 dimannosides. The binding of core α1,6-fucosylated oligomannose-3 in the co-crystals of FimH is monovalent, but interestingly the GlcNAc1 - Fuc moiety retains highly flexibility. In co-crystals with oligomannose-6, two FimH bacterial adhesins bind the Manα1,3Manα1 and Manα1,6Manα1 endings of the second trimannose core (A-4'-B). This cooperative switch towards bivalent binding appears sustainable beyond a molar excess of oligomannose-6. Our findings provide important novel structural insights for the design of multivalent FimH antagonists that bind with positive cooperativity.
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Affiliation(s)
- Eva-Maria Krammer
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR 8576 CNRS and University of Lille, 50 Avenue Halley, 59658 Villeneuve d'Ascq, France
| | - Clarisse Bridot
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR 8576 CNRS and University of Lille, 50 Avenue Halley, 59658 Villeneuve d'Ascq, France
| | - Sonia Serna
- Glycotechnology Group, Basque Research and Technology Alliance (BRTA), CIC biomaGUNE, Paseo Miramon 194, 20014 Donostia, Spain
| | - Begoña Echeverria
- Glycotechnology Group, Basque Research and Technology Alliance (BRTA), CIC biomaGUNE, Paseo Miramon 194, 20014 Donostia, Spain
| | - Shubham Semwal
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR 8576 CNRS and University of Lille, 50 Avenue Halley, 59658 Villeneuve d'Ascq, France
| | | | - Kim van Noort
- Laboratory of Nematology, Plant Science Group, Wageningen University and Research, Droevendaalsesteeg 1, 6708 Wageningen, The Netherlands
| | - RuudH P Wilbers
- Laboratory of Nematology, Plant Science Group, Wageningen University and Research, Droevendaalsesteeg 1, 6708 Wageningen, The Netherlands
| | - Gleb Bourenkov
- European Molecular Biology Laboratory (EMBL), Hamburg Unit c/o DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Jérôme de Ruyck
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR 8576 CNRS and University of Lille, 50 Avenue Halley, 59658 Villeneuve d'Ascq, France
| | | | - Niels Reichardt
- Glycotechnology Group, Basque Research and Technology Alliance (BRTA), CIC biomaGUNE, Paseo Miramon 194, 20014 Donostia, Spain; CIBER-BBN, Paseo Miramon 194, 20014 Donostia, Spain
| | - Julie Bouckaert
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR 8576 CNRS and University of Lille, 50 Avenue Halley, 59658 Villeneuve d'Ascq, France.
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9
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Osterne VJS, Oliveira MV, De Schutter K, Serna S, Reichardt NC, Smagghe G, Cavada BS, Van Damme EJM, Nascimento KS. A galactoside-specific Dalbergieae legume lectin from seeds of Vataireopsis araroba (Aguiar) Ducke. Glycoconj J 2023; 40:85-95. [PMID: 36287345 DOI: 10.1007/s10719-022-10082-8] [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: 05/23/2022] [Revised: 09/09/2022] [Accepted: 09/16/2022] [Indexed: 11/24/2022]
Abstract
The Dalbergieae lectin group encompasses several lectins with significant differences in their carbohydrate specificities and biological properties. The current work reports on the purification and characterization of a GalNAc/Gal-specific lectin from Vataireopsis araroba (Aguiar) Ducke, designated as VaL. The lectin was purified from the seeds in a single step using guar gum affinity chromatography. The lectin migrated as a single band of about 35 kDa on SDS-PAGE and, in native conditions, occurs as a homodimer. The purified lectin is stable at temperatures up to 60 °C and in a pH range from 7 to 8 and requires divalent cations for its activity. Sugar-inhibition assays demonstrate the lectin specificity towards N-acetyl-D-galactosamine, D-galactose and related sugars. Furthermore, glycan array analyses show that VaL interacts preferentially with glycans containing terminal GalNAc/Galβ1-4GlcNAc. Biological activity assays were performed using three insect cell lines: CF1 midgut cells from the spruce budworm Choristoneura fumiferana, S2 embryo cells from the fruit fly Drosophila melanogaster, and GutAW midgut cells from the corn earworm Helicoverpa zea. In vitro assays indicated a biostatic effect for VaL on CF1 cells, but not on S2 and GutAW cells. The lectin presented a biostatic effect by reducing the cell growth and inducing cell agglutination, suggesting an interaction with glycans on the cell surface. VaL has been characterized as a galactoside-specific lectin of the Dalbergieae tribe, with sequence similarity to lectins from Vatairea and Arachis.
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Affiliation(s)
- Vinicius J S Osterne
- Laboratory for Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium
| | - Messias V Oliveira
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60455-760, Fortaleza, Brazil
| | - Kristof De Schutter
- Laboratory of Agrozoology, Department of Plants and Crops, Ghent University, 9000, Ghent, Belgium
| | - Sonia Serna
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182, 20014, San Sebastian, Spain
| | - Niels-Christian Reichardt
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182, 20014, San Sebastian, Spain
- CIBER-BBN, 20009, San Sebastian, Spain
| | - Guy Smagghe
- Laboratory of Agrozoology, Department of Plants and Crops, Ghent University, 9000, Ghent, Belgium
| | - Benildo S Cavada
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60455-760, Fortaleza, Brazil
| | - Els J M Van Damme
- Laboratory for Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium.
| | - Kyria Santiago Nascimento
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60455-760, Fortaleza, Brazil.
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10
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Qiao J, Ma Q, Li X, Qi L. Redox-Responsive Polymer Nanoreactors Based on Methionine Sulfoxide for Monitoring Cell Adhesion. Anal Chem 2022; 94:11807-11812. [PMID: 35977000 DOI: 10.1021/acs.analchem.2c01963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Expanding the category of redox-responsive monomers suitable for enzymolysis efficiency regulation and application to living biosystems is a prerequisite to complementing the fabrication of stimuli-responsive polymer nanoreactors. However, the development of redox-responsive monomers is severely limited by chemical oxidation and low biocompatibility. This work presents a protocol for overcoming this problem by the self-assembly of redox-responsive polymer nanoreactors containing segments of water-soluble methionine sulfoxide residues and poly(styrene-co-maleic anhydride-l-methionine), and by immobilizing α-l-fucosidase into the nanoreactors. These nanoreactors demonstrate highly selective responses to a mild redox triggered by H2O2 from the initial state (VO) to an oxidation state (VO1), and are reduced by methionine sulfoxide reductase A to mold the VO' state. It resulted in significantly enhanced enzymolysis efficiency and maximal reaction rates 8.1-fold (VO) and 23.3-fold (VO1) higher than those of the free enzyme. Moreover, cell adhesion was evaluated by the highly selective determination of l-fucose on cell surfaces. Using a combination of chemical oxidation and enzymatic reduction, this work achieves reiterative enzymolysis efficiency regulation of polymer nanoreactors, which has great potential for the construction of redox-responsive nanoreactors and for monitoring cell adhesion.
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Affiliation(s)
- Juan Qiao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.,School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Qian Ma
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.,School of Pharmacy, Xinxiang Medical University, Xinxiang 453003, P. R. China
| | - Xiangfei Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.,College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, P.R. China
| | - Li Qi
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.,School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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11
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Dhara D, Dhara A, Murphy PV, Mulard LA. Protecting group principles suited to late stage functionalization and global deprotection in oligosaccharide synthesis. Carbohydr Res 2022; 521:108644. [PMID: 36030632 DOI: 10.1016/j.carres.2022.108644] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/28/2022] [Accepted: 07/31/2022] [Indexed: 11/02/2022]
Abstract
Chemical synthesis is a powerful tool to access homogeneous complex glycans, which relies on protecting group (PG) chemistry. However, the overall efficiency of chemical glycan assembly is still low when compared to oligonucleotide or oligopeptide synthesis. There have been many contributions giving rise to collective improvement in carbohydrate synthesis that includes PG manipulation and stereoselective glycoside formation and some of this chemistry has been transferred to the solid phase or adapted for programmable one pot synthesis approaches. However, after all glycoside bond formation reactions are completed, the global deprotection (GD) required to give the desired target OS can be challenging. Difficulties observed in the removal of permanent PGs to release the desired glycans can be due to the number and diversity of PGs present in the protected OSs, nature and structural complexity of glycans, etc. Here, we have reviewed the difficulties associated with the removal of PGs from densely protected OSs to obtain their free glycans. In particularly, this review focuses on the challenges associated with hydrogenolysis of benzyl groups, saponification of esters and functional group interconversion such as oxidation/reduction that are commonly performed in GD stage. More generally, problems observed in the removal of permanent PGs is reviewed herein, including benzyl, acyl (levulinoyl, acetyl), N-trichloroacetyl, N-2,2,2-trichloroethoxycarbonyl, N-phthaloyl etc. from a number of fully protected OSs to release the free sugar, that have been previously reported in the literature.
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Affiliation(s)
- Debashis Dhara
- Institut Pasteur, Université Paris Cité, CNRS UMR 3523, Unité de Chimie des Biomolécules, 25-28 rue du Dr Roux, 75015, Paris, France; School of Biological and Chemical Sciences, NUI Galway, University Road, Galway, H91 TK33, Ireland.
| | - Ashis Dhara
- School of Biological and Chemical Sciences, NUI Galway, University Road, Galway, H91 TK33, Ireland
| | - Paul V Murphy
- School of Biological and Chemical Sciences, NUI Galway, University Road, Galway, H91 TK33, Ireland; SSPC - The Science Foundation Ireland Research Centre for Pharmaceuticals, NUI Galway, University Road, Galway, H91 TK33, Ireland
| | - Laurence A Mulard
- Institut Pasteur, Université Paris Cité, CNRS UMR 3523, Unité de Chimie des Biomolécules, 25-28 rue du Dr Roux, 75015, Paris, France
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12
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Huettner I, Krumm SA, Serna S, Brzezicka K, Monaco S, Walpole S, van Diepen A, Allan F, Hicks T, Kimuda S, Emery AM, Landais E, Hokke CH, Angulo J, Reichardt N, Doores KJ. Cross-reactivity of glycan-reactive HIV-1 broadly neutralizing antibodies with parasite glycans. Cell Rep 2022; 38:110611. [PMID: 35354052 PMCID: PMC10073069 DOI: 10.1016/j.celrep.2022.110611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/26/2022] [Accepted: 03/11/2022] [Indexed: 11/03/2022] Open
Abstract
The HIV-1 Envelope glycoprotein (Env) is the sole target for broadly neutralizing antibodies (bnAbs). Env is heavily glycosylated with host-derived N-glycans, and many bnAbs bind to, or are dependent upon, Env glycans for neutralization. Although glycan-binding bnAbs are frequently detected in HIV-infected individuals, attempts to elicit them have been unsuccessful because of the poor immunogenicity of Env N-glycans. Here, we report cross-reactivity of glycan-binding bnAbs with self- and non-self N-glycans and glycoprotein antigens from different life-stages of Schistosoma mansoni. Using the IAVI Protocol C HIV infection cohort, we examine the relationship between S. mansoni seropositivity and development of bnAbs targeting glycan-dependent epitopes. We show that the unmutated common ancestor of the N332/V3-specific bnAb lineage PCDN76, isolated from an HIV-infected donor with S. mansoni seropositivity, binds to S. mansoni cercariae while lacking reactivity to gp120. Overall, these results present a strategy for elicitation of glycan-reactive bnAbs which could be exploited in HIV-1 vaccine development.
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Affiliation(s)
- Isabella Huettner
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Stefanie A Krumm
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Sonia Serna
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Katarzyna Brzezicka
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Serena Monaco
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK
| | - Samuel Walpole
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Fiona Allan
- Department of Life Sciences, Natural History Museum, Cromwell Road, London, UK
| | - Thomas Hicks
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK
| | - Simon Kimuda
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Aidan M Emery
- Department of Life Sciences, Natural History Museum, Cromwell Road, London, UK
| | - Elise Landais
- International AIDS Vaccine Initiative Neutralizing Antibody Center, La Jolla, CA 92037, USA; International AIDS Vaccine Initiative, New York, NY 10004, USA
| | - Cornelis H Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Jesus Angulo
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; Instituto de Investigaciones Químicas (CSIC-US), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Niels Reichardt
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastian, Spain; CIBER-BBN, Paseo Miramón 182, 20009 San Sebastian, Spain
| | - Katie J Doores
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College London, London, UK.
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13
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Purification and characterization of a highly thermostable GlcNAc-binding lectin from Collaea speciosa seeds. Int J Biol Macromol 2021; 193:1562-1571. [PMID: 34740693 DOI: 10.1016/j.ijbiomac.2021.10.219] [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: 09/06/2021] [Revised: 10/29/2021] [Accepted: 10/29/2021] [Indexed: 11/21/2022]
Abstract
Lectins from plants of the Diocleinae subtribe often exhibit specificity towards mannose/glucose and derived sugars, with some plants also displaying a second lectin specific to lactose/GalNAc. Here, we present a novel lectin from Collaea speciosa, named CsL, that displays specificity for GlcNAc/glucose. The lectin was extracted from Collaea speciosa seeds and purified by a single chromatographic step on a Sephadex G-50 matrix. In solution, the lectin appears as a dimeric protein composed of 25 kDa monomers. The protein is stable at pH 7-8 and dependent on divalent cations. CsL maintained its agglutination activity after heating to 90 °C for 1 h. Glycan array studies revealed that CsL binds to N-glycans with terminal GlcNAc residues, chitobiose and chitotriose moieties. The partial amino acid sequence of the lectin is similar to that of some lactose-specific lectins from the same subtribe. In contrast to other ConA-like lectins, CsL is not toxic to Artemia. Because of its remarkably different properties and specificity, this lectin could be the first member of a new group inside the Diocleinae lectins.
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14
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Willment JA. Fc-conjugated C-type lectin receptors: Tools for understanding host-pathogen interactions. Mol Microbiol 2021; 117:632-660. [PMID: 34709692 DOI: 10.1111/mmi.14837] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 10/25/2021] [Indexed: 12/24/2022]
Abstract
The use of soluble fusion proteins of pattern recognition receptors (PRRs) used in the detection of exogenous and endogenous ligands has helped resolve the roles of PRRs in the innate immune response to pathogens, how they shape the adaptive immune response, and function in maintaining homeostasis. Using the immunoglobulin (Ig) crystallizable fragment (Fc) domain as a fusion partner, the PRR fusion proteins are soluble, stable, easily purified, have increased affinity due to the Fc homodimerization properties, and consequently have been used in a wide range of applications such as flow cytometry, screening of protein and glycan arrays, and immunofluorescent microscopy. This review will predominantly focus on the recognition of pathogens by the cell membrane-expressed glycan-binding proteins of the C-type lectin receptor (CLR) subgroup of PRRs. PRRs bind to conserved pathogen-associated molecular patterns (PAMPs), such as glycans, usually located within or on the outer surface of the pathogen. Significantly, many glycans structures are identical on both host and pathogen (e.g. the Lewis (Le) X glycan), allowing the use of Fc CLR fusion proteins with known endogenous and/or exogenous ligands as tools to identify pathogen structures that are able to interact with the immune system. Screens of highly purified pathogen-derived cell wall components have enabled identification of many unique PAMP structures recognized by CLRs. This review highlights studies using Fc CLR fusion proteins, with emphasis on the PAMPs found in fungi, bacteria, viruses, and parasites. The structure and unique features of the different CLR families is presented using examples from a broad range of microbes whenever possible.
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Affiliation(s)
- Janet A Willment
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, UK
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15
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Morelli L, Lay L, Santana-Mederos D, Valdes-Balbin Y, Verez Bencomo V, van Diepen A, Hokke CH, Chiodo F, Compostella F. Glycan Array Evaluation of Synthetic Epitopes between the Capsular Polysaccharides from Streptococcus pneumoniae 19F and 19A. ACS Chem Biol 2021; 16:1671-1679. [PMID: 34469105 PMCID: PMC8453487 DOI: 10.1021/acschembio.1c00347] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Vaccination represents
the most effective way to prevent invasive
pneumococcal diseases. The glycoconjugate vaccines licensed so far
are obtained from capsular polysaccharides (CPSs) of the most virulent
serotypes. Protection is largely limited to the specific vaccine serotypes,
and the continuous need for broader coverage to control the outbreak
of emerging serotypes is pushing the development of new vaccine candidates.
Indeed, the development of efficacious vaccine formulation is complicated
by the high number of bacterial serotypes with different CPSs. In
this context, to simplify vaccine composition, we propose the design
of new saccharide fragments containing chemical structures shared
by different serotypes as cross-reactive and potentially cross-protective
common antigens. In particular, we focused on Streptococcus
pneumoniae (Sp) 19A and 19F. The CPS repeating units of Sp
19F and 19A are very similar and share a common structure, the disaccharide
ManNAc-β-(1→4)-Glc (A-B). Herein, we describe the synthesis
of a small library of compounds containing different combinations
of the common 19F/19A disaccharide. The six new compounds were tested
with a glycan array to evaluate their recognition by antibodies in
reference group 19 antisera and factor reference antisera (reacting
against 19F or 19A). The disaccharide A-B, phosphorylated at the upstream
end, emerged as a hit from the glycan array screening because it is
strongly recognized by the group 19 antisera and by the 19F and 19A
factor antisera, with similar intensity compared with the CPSs used
as controls. Our data give a strong indication that the phosphorylated
disaccharide A-B can be considered a common epitope among different
Sp 19 serotypes.
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Affiliation(s)
- Laura Morelli
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Saldini 50, 20133 Milano, Italy
| | - Luigi Lay
- Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milano, Italy
| | | | | | | | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Cornelis H. Hokke
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Fabrizio Chiodo
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
- Italian National Research Council (CNR), Institute of Biomolecular Chemistry (ICB), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Federica Compostella
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Saldini 50, 20133 Milano, Italy
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16
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Glycosylation reduces the glycan-independent immunomodulatory effect of recombinant Orysata lectin in Drosophila S2 cells. Sci Rep 2021; 11:17958. [PMID: 34504130 PMCID: PMC8429549 DOI: 10.1038/s41598-021-97161-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/13/2021] [Indexed: 11/09/2022] Open
Abstract
Several plant lectins, or carbohydrate-binding proteins, interact with glycan moieties on the surface of immune cells, thereby influencing the immune response of these cells. Orysata, a mannose-binding lectin from rice, has been reported to exert immunomodulatory activities on insect cells. While the natural lectin is non-glycosylated, recombinant Orysata produced in the yeast Pichia pastoris (YOry) is modified with a hyper-mannosylated N-glycan. Since it is unclear whether this glycosylation can affect the YOry activity, non-glycosylated rOrysata was produced in Escherichia coli (BOry). In a comparative analysis, both recombinant Orysata proteins were tested for their carbohydrate specificity on a glycan array, followed by the investigation of the carbohydrate-dependent agglutination of red blood cells (RBCs) and the carbohydrate-independent immune responses in Drosophila melanogaster S2 cells. Although YOry and BOry showed a similar carbohydrate-binding profiles, lower concentration of BOry were sufficient for the agglutination of RBCs and BOry induced stronger immune responses in S2 cells. The data are discussed in relation to different hypotheses explaining the weaker responses of glycosylated YOry. In conclusion, these observations contribute to the understanding how post-translational modification can affect protein function, and provide guidance in the selection of the proper expression system for the recombinant production of lectins.
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17
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Srivastava AD, Unione L, Bunyatov M, Gagarinov IA, Delgado S, Abrescia NGA, Ardá A, Boons GJ. Chemoenzymatic Synthesis of Complex N-Glycans of the Parasite S. mansoni to Examine the Importance of Epitope Presentation on DC-SIGN recognition. Angew Chem Int Ed Engl 2021; 60:19287-19296. [PMID: 34124805 PMCID: PMC8456914 DOI: 10.1002/anie.202105647] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/02/2021] [Indexed: 12/14/2022]
Abstract
The importance of multivalency for N-glycan-protein interactions has primarily been studied by attachment of minimal epitopes to artificial multivalent scaffold and not in the context of multi-antennary glycans. N-glycans can be modified by bisecting GlcNAc, core xylosides and fucosides, and extended N-acetyl lactosamine moieties. The impact of such modifications on glycan recognition are also not well understood. We describe here a chemoenzymatic methodology that can provide N-glycans expressed by the parasitic worm S. mansoni having unique epitopes at each antenna and containing core xyloside. NMR, computational and electron microscopy were employed to investigate recognition of the glycans by the human lectin DC-SIGN. It revealed that core xyloside does not influence terminal epitope recognition. The multi-antennary glycans bound with higher affinity to DC-SIGN compared to mono-valent counterparts, which was attributed to proximity-induced effective concentration. The multi-antennary glycans cross-linked DC-SIGN into a dense network, which likely is relevant for antigen uptake and intracellular routing.
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Affiliation(s)
- Apoorva D Srivastava
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Luca Unione
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Mehman Bunyatov
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Ivan A Gagarinov
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Sandra Delgado
- Molecular Recognition and Host-Pathogen Interactions, CIC bioGUNE, Basque Research and Technology Alliance, BRTA, Bizkaia Technology Park, Building 800, 48162, Derio, Bizkaia, Spain
| | - Nicola G A Abrescia
- Molecular Recognition and Host-Pathogen Interactions, CIC bioGUNE, Basque Research and Technology Alliance, BRTA, Bizkaia Technology Park, Building 800, 48162, Derio, Bizkaia, Spain.,Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Bizkaia, Spain
| | - Ana Ardá
- Molecular Recognition and Host-Pathogen Interactions, CIC bioGUNE, Basque Research and Technology Alliance, BRTA, Bizkaia Technology Park, Building 800, 48162, Derio, Bizkaia, Spain.,Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Bizkaia, Spain
| | - Geert-Jan Boons
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands.,Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602, USA.,Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
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18
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Srivastava AD, Unione L, Bunyatov M, Gagarinov IA, Delgado S, Abrescia NGA, Ardá A, Boons G. Chemoenzymatic Synthesis of Complex
N
‐Glycans of the Parasite
S. mansoni
to Examine the Importance of Epitope Presentation on DC‐SIGN recognition. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Apoorva D. Srivastava
- Department of Chemical Biology and Drug Discovery Utrecht Institute for Pharmaceutical Sciences Bijvoet Center for Biomolecular Research Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Luca Unione
- Department of Chemical Biology and Drug Discovery Utrecht Institute for Pharmaceutical Sciences Bijvoet Center for Biomolecular Research Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Mehman Bunyatov
- Department of Chemical Biology and Drug Discovery Utrecht Institute for Pharmaceutical Sciences Bijvoet Center for Biomolecular Research Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Ivan A. Gagarinov
- Department of Chemical Biology and Drug Discovery Utrecht Institute for Pharmaceutical Sciences Bijvoet Center for Biomolecular Research Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Sandra Delgado
- Molecular Recognition and Host-Pathogen Interactions CIC bioGUNE, Basque Research and Technology Alliance, BRTA Bizkaia Technology Park, Building 800 48162 Derio Bizkaia Spain
| | - Nicola G. A. Abrescia
- Molecular Recognition and Host-Pathogen Interactions CIC bioGUNE, Basque Research and Technology Alliance, BRTA Bizkaia Technology Park, Building 800 48162 Derio Bizkaia Spain
- Ikerbasque, Basque Foundation for Science 48013 Bilbao Bizkaia Spain
| | - Ana Ardá
- Molecular Recognition and Host-Pathogen Interactions CIC bioGUNE, Basque Research and Technology Alliance, BRTA Bizkaia Technology Park, Building 800 48162 Derio Bizkaia Spain
- Ikerbasque, Basque Foundation for Science 48013 Bilbao Bizkaia Spain
| | - Geert‐Jan Boons
- Department of Chemical Biology and Drug Discovery Utrecht Institute for Pharmaceutical Sciences Bijvoet Center for Biomolecular Research Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
- Complex Carbohydrate Research Center University of Georgia 315 Riverbend Road Athens GA 30602 USA
- Department of Chemistry University of Georgia Athens GA 30602 USA
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19
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Hoffmann D, Mereiter S, Jin Oh Y, Monteil V, Elder E, Zhu R, Canena D, Hain L, Laurent E, Grünwald-Gruber C, Klausberger M, Jonsson G, Kellner MJ, Novatchkova M, Ticevic M, Chabloz A, Wirnsberger G, Hagelkruys A, Altmann F, Mach L, Stadlmann J, Oostenbrink C, Mirazimi A, Hinterdorfer P, Penninger JM. Identification of lectin receptors for conserved SARS-CoV-2 glycosylation sites. EMBO J 2021; 40:e108375. [PMID: 34375000 PMCID: PMC8420505 DOI: 10.15252/embj.2021108375] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/19/2021] [Accepted: 07/28/2021] [Indexed: 12/23/2022] Open
Abstract
New SARS‐CoV‐2 variants are continuously emerging with critical implications for therapies or vaccinations. The 22 N‐glycan sites of Spike remain highly conserved among SARS‐CoV‐2 variants, opening an avenue for robust therapeutic intervention. Here we used a comprehensive library of mammalian carbohydrate‐binding proteins (lectins) to probe critical sugar residues on the full‐length trimeric Spike and the receptor binding domain (RBD) of SARS‐CoV‐2. Two lectins, Clec4g and CD209c, were identified to strongly bind to Spike. Clec4g and CD209c binding to Spike was dissected and visualized in real time and at single‐molecule resolution using atomic force microscopy. 3D modelling showed that both lectins can bind to a glycan within the RBD‐ACE2 interface and thus interferes with Spike binding to cell surfaces. Importantly, Clec4g and CD209c significantly reduced SARS‐CoV‐2 infections. These data report the first extensive map and 3D structural modelling of lectin‐Spike interactions and uncovers candidate receptors involved in Spike binding and SARS‐CoV‐2 infections. The capacity of CLEC4G and mCD209c lectins to block SARS‐CoV‐2 viral entry holds promise for pan‐variant therapeutic interventions.
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Affiliation(s)
- David Hoffmann
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Stefan Mereiter
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Yoo Jin Oh
- Institute of Biophysics, Johannes Kepler University Linz, Linz, Austria
| | - Vanessa Monteil
- Department of Laboratory Medicine, Unit of Clinical Microbiology, Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden
| | | | - Rong Zhu
- Institute of Biophysics, Johannes Kepler University Linz, Linz, Austria
| | - Daniel Canena
- Institute of Biophysics, Johannes Kepler University Linz, Linz, Austria
| | - Lisa Hain
- Institute of Biophysics, Johannes Kepler University Linz, Linz, Austria
| | - Elisabeth Laurent
- Department of Biotechnology and BOKU Core Facility Biomolecular & Cellular Analysis, University of Natural Resources and Life Sciences, Vienna, Austria
| | | | - Miriam Klausberger
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Gustav Jonsson
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Max J Kellner
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Maria Novatchkova
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Melita Ticevic
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Antoine Chabloz
- Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | | | - Astrid Hagelkruys
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Friedrich Altmann
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Lukas Mach
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Johannes Stadlmann
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria.,Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Chris Oostenbrink
- Department for Material Sciences and Process Engineering, Institute for Molecular Modeling and Simulation, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Ali Mirazimi
- Department of Laboratory Medicine, Unit of Clinical Microbiology, Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden.,National Veterinary Institute, Uppsala, Sweden
| | | | - Josef M Penninger
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria.,Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
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20
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Harvey DJ. ANALYSIS OF CARBOHYDRATES AND GLYCOCONJUGATES BY MATRIX-ASSISTED LASER DESORPTION/IONIZATION MASS SPECTROMETRY: AN UPDATE FOR 2015-2016. MASS SPECTROMETRY REVIEWS 2021; 40:408-565. [PMID: 33725404 DOI: 10.1002/mas.21651] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/24/2020] [Indexed: 06/12/2023]
Abstract
This review is the ninth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2016. Also included are papers that describe methods appropriate to analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and the enormous impact that MALDI imaging is having. MALDI, although invented over 30 years ago is still an ideal technique for carbohydrate analysis and advancements in the technique and range of applications show no sign of deminishing. © 2020 Wiley Periodicals, Inc.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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21
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Manabe Y. Chemical Biology Study on N-glycans. TRENDS GLYCOSCI GLYC 2021. [DOI: 10.4052/tigg.2109.2j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University
- Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University
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22
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Manabe Y. Chemical Biology Study on N-glycans. TRENDS GLYCOSCI GLYC 2021. [DOI: 10.4052/tigg.2109.2e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University
- Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University
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23
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Robakiewicz S, Bridot C, Serna S, Gimeno A, Echeverria B, Delgado S, Ruyck J, Semwal S, Charro D, Dansercoer A, Verstraete K, Azkargorta M, Noort K, Wilbers R, Savvides SN, Abrescia NGA, Arda A, Reichardt NC, Jiménez-Barbero J, Bouckaert J. Minimal epitope for Mannitou IgM on paucimannose-carrying glycoproteins. Glycobiology 2021; 31:1005-1017. [PMID: 33909073 DOI: 10.1093/glycob/cwab027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/03/2021] [Accepted: 03/30/2021] [Indexed: 11/14/2022] Open
Abstract
Paucimannosidic glycans are restricted to the core structure [Man1-3GlcNAc2Fuc0-1] of N-glycans and are rarely found in mammalian tissues. Yet, especially [Man2-3GlcNAc2Fuc1] have been found significantly upregulated in tumors, including in colorectal and liver cancer. Mannitou IgM is a murine monoclonal antibody that was previously shown to recognise Man3GlcNAc2 with an almost exclusive selectivity. Here, we have sought the definition of the minimal glycan epitope of Mannitou IgM, initiated by screening on a newly designed paucimannosidic glycan microarray. Among the best binders were Man3GlcNAc2 and its α1,6 core-fucosylated variant, Man3GlcNAc2Fuc1. Unexpectedly and in contrast to earlier findings, Man5GlcNAc2-type structures bind equally well and a large tolerance was observed for substitutions on the α1,6 arm. It was confirmed that any substitution on the single α1,3-linked mannose completely abolishes binding. Surface plasmon resonance for kinetic measurements of Mannitou IgM binding, either directly on the glycans or as presented on omega-1 and kappa-5 soluble egg antigens from the helminth parasite Schistosoma mansoni, showed submicromolar affinities. To characterize the epitope in greater and atomic detail, saturation transfer difference nuclear magnetic resonance spectroscopy was performed with the Mannitou antigen-binding fragment. The STD-NMR data demonstrated the strongest interactions with the aliphatic protons H1 and H2 of the α1-3-linked mannose, and weaker imprints on its H3, H4 and H5 protons. In conclusion, Mannitou IgM binding requires a non-substituted α1,3-linked mannose branch of paucimannose also on proteins, making it a highly specific tool for the distinction of concurrent human tumor-associated carbohydrate antigens.
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Affiliation(s)
- Stefania Robakiewicz
- Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576 du CNRS et Université de Lille, 50 Avenue Halley, 59650 Villeneuve d'Ascq, France
| | - Clarisse Bridot
- Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576 du CNRS et Université de Lille, 50 Avenue Halley, 59650 Villeneuve d'Ascq, France
| | - Sonia Serna
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Ana Gimeno
- CIC bioGUNE, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - Begoña Echeverria
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Sandra Delgado
- CIC bioGUNE, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - Jérôme Ruyck
- Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576 du CNRS et Université de Lille, 50 Avenue Halley, 59650 Villeneuve d'Ascq, France
| | - Shubham Semwal
- Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576 du CNRS et Université de Lille, 50 Avenue Halley, 59650 Villeneuve d'Ascq, France
| | - Diego Charro
- CIC bioGUNE, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - Ann Dansercoer
- Unit for Structural Biology, VIB - UGent Center for Inflammation Research, Department of Biochemistry and Microbiology, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
| | - Kenneth Verstraete
- Unit for Structural Biology, VIB - UGent Center for Inflammation Research, Department of Biochemistry and Microbiology, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
| | - Mikel Azkargorta
- CIC bioGUNE, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - Kim Noort
- Laboratory of Nematology, Plant Science Group, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Ruud Wilbers
- Laboratory of Nematology, Plant Science Group, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Savvas N Savvides
- Unit for Structural Biology, VIB - UGent Center for Inflammation Research, Department of Biochemistry and Microbiology, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
| | - Nicola G A Abrescia
- CIC bioGUNE, Bizkaia Science and Technology Park, 48160 Derio, Spain.,IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Ana Arda
- CIC bioGUNE, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - Niels C Reichardt
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Bizkaia Science and Technology Park, 48160 Derio, Spain.,IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Julie Bouckaert
- Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576 du CNRS et Université de Lille, 50 Avenue Halley, 59650 Villeneuve d'Ascq, France
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24
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Shirakawa A, Manabe Y, Fukase K. Recent Advances in the Chemical Biology of N-Glycans. Molecules 2021; 26:molecules26041040. [PMID: 33669465 PMCID: PMC7920464 DOI: 10.3390/molecules26041040] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/08/2021] [Accepted: 02/14/2021] [Indexed: 12/19/2022] Open
Abstract
Asparagine-linked N-glycans on proteins have diverse structures, and their functions vary according to their structures. In recent years, it has become possible to obtain high quantities of N-glycans via isolation and chemical/enzymatic/chemoenzymatic synthesis. This has allowed for progress in the elucidation of N-glycan functions at the molecular level. Interaction analyses with lectins by glycan arrays or nuclear magnetic resonance (NMR) using various N-glycans have revealed the molecular basis for the recognition of complex structures of N-glycans. Preparation of proteins modified with homogeneous N-glycans revealed the influence of N-glycan modifications on protein functions. Furthermore, N-glycans have potential applications in drug development. This review discusses recent advances in the chemical biology of N-glycans.
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Affiliation(s)
- Asuka Shirakawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan;
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan;
- Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Correspondence: (Y.M.); (K.F.); Tel.: +81-6-6850-5391 (Y.M.); +81-6-6850-5388 (K.F.)
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan;
- Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Correspondence: (Y.M.); (K.F.); Tel.: +81-6-6850-5391 (Y.M.); +81-6-6850-5388 (K.F.)
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25
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Nkurunungi G, Mpairwe H, Versteeg SA, Diepen A, Nassuuna J, Kabagenyi J, Nambuya I, Sanya RE, Nampijja M, Serna S, Reichardt N, Hokke CH, Webb EL, Ree R, Yazdanbakhsh M, Elliott AM. Cross-reactive carbohydrate determinant-specific IgE obscures true atopy and exhibits ⍺-1,3-fucose epitope-specific inverse associations with asthma. Allergy 2021; 76:233-246. [PMID: 32568414 PMCID: PMC7610925 DOI: 10.1111/all.14469] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 05/03/2020] [Accepted: 06/03/2020] [Indexed: 12/22/2022]
Abstract
Background In high-income, temperate countries, IgE to allergen extracts is a risk factor for, and mediator of, allergy-related diseases (ARDs). In the tropics, positive IgE tests are also prevalent, but rarely associated with ARD. Instead, IgE responses to ubiquitous cross-reactive carbohydrate determinants (CCDs) on plant, insect and parasite glycoproteins, rather than to established major allergens, are dominant. Because anti-CCD IgE has limited clinical relevance, it may impact ARD phenotyping and assessment of contribution of atopy to ARD. Methods Using an allergen extract-based test, a glycan and an allergen (glyco)protein microarray, we mapped IgE fine specificity among Ugandan rural Schistosoma mansoni (Sm)-endemic communities, proximate urban communities, and importantly in asthmatic and nonasthmatic schoolchildren. Results Overall, IgE sensitization to extracts was highly prevalent (43%-73%) but allergen arrays indicated that this was not attributable to established major allergenic components of the extracts (0%-36%); instead, over 40% of all participants recognized CCD-bearing components. Using glycan arrays, we dissected IgE responses to specific glycan moieties and found that reactivity to classical CCD epitopes (core β-1,2-xylose, α-1,3-fucose) was positively associated with sensitization to extracts, rural environment and Sm infection, but not with skin reactivity to extracts or sensitization to their major allergenic components. Interestingly, we discovered that reactivity to only a subset of core α-1,3-fucose-carrying N-glycans was inversely associated with asthma. Conclusions CCD reactivity is not just an epiphenomenon of parasite exposure hampering specificity of allergy diagnostics; mechanistic studies should investigate whether specific CCD moieties identified here are implicated in the protective effect of certain environmental exposures against asthma.
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Affiliation(s)
- Gyaviira Nkurunungi
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
- Department of Clinical Research London School of Hygiene and Tropical Medicine London UK
| | - Harriet Mpairwe
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
| | - Serge A. Versteeg
- Departments of Experimental Immunology and of Otorhinolaryngology Amsterdam University Medical Centers (AMC) Amsterdam The Netherlands
| | - Angela Diepen
- Department of Parasitology Leiden University Medical Center Leiden The Netherlands
| | - Jacent Nassuuna
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
| | - Joyce Kabagenyi
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
| | - Irene Nambuya
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
| | - Richard E. Sanya
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
- College of Health Sciences Makerere University Kampala Uganda
| | - Margaret Nampijja
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
| | - Sonia Serna
- Glycotechnology Laboratory Centro de Investigación Cooperativa en Biomateriales (CIC biomaGUNE) San Sebastián Spain
| | - Niels‐Christian Reichardt
- Glycotechnology Laboratory Centro de Investigación Cooperativa en Biomateriales (CIC biomaGUNE) San Sebastián Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER‐BBN) San Sebastián Spain
| | - Cornelis H. Hokke
- Department of Parasitology Leiden University Medical Center Leiden The Netherlands
| | - Emily L. Webb
- Department of Infectious Disease Epidemiology London School of Hygiene and Tropical Medicine MRC Tropical Epidemiology Group London UK
| | - Ronald Ree
- Departments of Experimental Immunology and of Otorhinolaryngology Amsterdam University Medical Centers (AMC) Amsterdam The Netherlands
| | - Maria Yazdanbakhsh
- Department of Parasitology Leiden University Medical Center Leiden The Netherlands
| | - Alison M. Elliott
- Immunomodulation and Vaccines Programme Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit Entebbe Uganda
- Department of Clinical Research London School of Hygiene and Tropical Medicine London UK
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26
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Srivastava AD, Unione L, Wolfert MA, Valverde P, Ardá A, Jiménez-Barbero J, Boons GJ. Mono- and Di-Fucosylated Glycans of the Parasitic Worm S. mansoni are Recognized Differently by the Innate Immune Receptor DC-SIGN. Chemistry 2020; 26:15605-15612. [PMID: 32957164 PMCID: PMC7894523 DOI: 10.1002/chem.202002619] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/06/2020] [Indexed: 12/13/2022]
Abstract
The parasitic worm, Schistosoma mansoni, expresses unusual fucosylated glycans in a stage-dependent manner that can be recognized by the human innate immune receptor DC-SIGN, thereby shaping host immune responses. We have developed a synthetic approach for mono- and bis-fucosylated LacdiNAc (LDN-F and LDN-DF, respectively), which are epitopes expressed on glycolipids and glycoproteins of S. mansoni. It is based on the use of monosaccharide building blocks having carefully selected amino-protecting groups, facilitating high yielding and stereoselective glycosylations. The molecular interaction between the synthetic glycans and DC-SIGN was studied by NMR and molecular modeling, which demonstrated that the α1,3-fucoside of LDN-F can coordinate with the Ca2+ -ion of the canonical binding site of DC-SIGN allowing for additional interactions with the underlying LDN backbone. The 1,2-fucoside of LDN-DF can be complexed in a similar manner, however, in this binding mode GlcNAc and GalNAc of the LDN backbone are placed away from the protein surface resulting in a substantially lower binding affinity. Glycan microarray binding studies showed that the avidity and selectivity of binding is greatly enhanced when the glycans are presented multivalently, and in this format Lex and LDN-F gave strong responsiveness, whereas no binding was detected for LDN-DF. The data indicates that S. mansoni has developed a strategy to avoid detection by DC-SIGN in a stage-dependent manner by the addition of a fucoside to a number of its ligands.
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Affiliation(s)
- Apoorva D Srivastava
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, Netherlands
| | - Luca Unione
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, Netherlands
| | - Margreet A Wolfert
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, Netherlands
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602, USA
| | - Pablo Valverde
- Molecular Recognition and Host-Pathogen Interactions, CIC bioGUNE, Bizkaia Technology Park, Building 800, 48162, Derio, Bizkaia, Spain
| | - Ana Ardá
- Molecular Recognition and Host-Pathogen Interactions, CIC bioGUNE, Bizkaia Technology Park, Building 800, 48162, Derio, Bizkaia, Spain
| | - Jesús Jiménez-Barbero
- Molecular Recognition and Host-Pathogen Interactions, CIC bioGUNE, Bizkaia Technology Park, Building 800, 48162, Derio, Bizkaia, Spain
- Basque Foundation for Science, Ikerbasque, 48013, Bilbao, Bizkaia, Spain
- Department of Organic Chemistry II, UPV/EHU, University of the Basque Country, 48940, Leioa, Bizkaia, Spain
| | - Geert-Jan Boons
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, Netherlands
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602, USA
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
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27
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Valverde P, Martínez JD, Cañada FJ, Ardá A, Jiménez-Barbero J. Molecular Recognition in C-Type Lectins: The Cases of DC-SIGN, Langerin, MGL, and L-Sectin. Chembiochem 2020; 21:2999-3025. [PMID: 32426893 PMCID: PMC7276794 DOI: 10.1002/cbic.202000238] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/19/2020] [Indexed: 12/16/2022]
Abstract
Carbohydrates play a pivotal role in intercellular communication processes. In particular, glycan antigens are key for sustaining homeostasis, helping leukocytes to distinguish damaged tissues and invading pathogens from healthy tissues. From a structural perspective, this cross-talk is fairly complex, and multiple membrane proteins guide these recognition processes, including lectins and Toll-like receptors. Since the beginning of this century, lectins have become potential targets for therapeutics for controlling and/or avoiding the progression of pathologies derived from an incorrect immune outcome, including infectious processes, cancer, or autoimmune diseases. Therefore, a detailed knowledge of these receptors is mandatory for the development of specific treatments. In this review, we summarize the current knowledge about four key C-type lectins whose importance has been steadily growing in recent years, focusing in particular on how glycan recognition takes place at the molecular level, but also looking at recent progresses in the quest for therapeutics.
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Affiliation(s)
- Pablo Valverde
- CIC bioGUNE, Basque Research Technology Alliance, BRTA, Bizkaia Technology park, Building 800, 48160, Derio, Spain
| | - J Daniel Martínez
- CIC bioGUNE, Basque Research Technology Alliance, BRTA, Bizkaia Technology park, Building 800, 48160, Derio, Spain
| | - F Javier Cañada
- Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu 9, 28040, Madrid, Spain
- CIBER de Enfermedades Respiratorias (CIBERES), Avda Monforte de Lemos 3-5, 28029, Madrid, Spain
| | - Ana Ardá
- CIC bioGUNE, Basque Research Technology Alliance, BRTA, Bizkaia Technology park, Building 800, 48160, Derio, Spain
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Basque Research Technology Alliance, BRTA, Bizkaia Technology park, Building 800, 48160, Derio, Spain
- Ikerbasque, Basque Foundation for Science, 48009, Bilbao, Spain
- Department of Organic Chemistry II, Faculty of Science and Technology, UPV-EHU, 48940, Leioa, Spain
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28
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Fogarty CA, Harbison AM, Dugdale AR, Fadda E. How and why plants and human N-glycans are different: Insight from molecular dynamics into the "glycoblocks" architecture of complex carbohydrates. Beilstein J Org Chem 2020; 16:2046-2056. [PMID: 32874351 PMCID: PMC7445399 DOI: 10.3762/bjoc.16.171] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/05/2020] [Indexed: 01/01/2023] Open
Abstract
The N-glycosylation is one of the most abundant and diverse post-translational modifications of proteins, implicated in protein folding and structural stability, and mediating interactions with receptors and with the environment. All N-glycans share a common core from which linear or branched arms stem from, with functionalization specific to different species and to the cells’ health and disease state. This diversity generates a rich collection of structures, all diversely able to trigger molecular cascades and to activate pathways, which also include adverse immunogenic responses. These events are inherently linked to the N-glycans’ 3D architecture and dynamics, which remain for the large part unresolved and undetected because of their intrinsic structural disorder. In this work we use molecular dynamics (MD) simulations to provide insight into N-glycans’ 3D structure by analysing the effects of a set of very specific modifications found in plants and invertebrate N-glycans, which are immunogenic in humans. We also compare these structural motifs and combine them with mammalian N-glycan motifs to devise strategies for the control of the N-glycan 3D structure through sequence. Our results suggest that the N-glycans’ architecture can be described in terms of the local spatial environment of groups of monosaccharides. We define these “glycoblocks” as self-contained 3D units, uniquely identified by the nature of the residues they comprise, their linkages and structural/dynamic features. This alternative description of glycans’ 3D architecture can potentially lead to an easier prediction of sequence-to-structure relationships in complex carbohydrates, with important implications in glycoengineering design.
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Affiliation(s)
- Carl A Fogarty
- Department of Chemistry and Hamilton Institute, Maynooth University, Maynooth, Kildare, Ireland
| | - Aoife M Harbison
- Department of Chemistry and Hamilton Institute, Maynooth University, Maynooth, Kildare, Ireland
| | - Amy R Dugdale
- Department of Chemistry and Hamilton Institute, Maynooth University, Maynooth, Kildare, Ireland
| | - Elisa Fadda
- Department of Chemistry and Hamilton Institute, Maynooth University, Maynooth, Kildare, Ireland
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29
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Mende M, Tsouka A, Heidepriem J, Paris G, Mattes DS, Eickelmann S, Bordoni V, Wawrzinek R, Fuchsberger FF, Seeberger PH, Rademacher C, Delbianco M, Mallagaray A, Loeffler FF. On-Chip Neo-Glycopeptide Synthesis for Multivalent Glycan Presentation. Chemistry 2020; 26:9954-9963. [PMID: 32315099 PMCID: PMC7496964 DOI: 10.1002/chem.202001291] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/17/2020] [Indexed: 11/11/2022]
Abstract
Single glycan-protein interactions are often weak, such that glycan binding partners commonly utilize multiple, spatially defined binding sites to enhance binding avidity and specificity. Current array technologies usually neglect defined multivalent display. Laser-based array synthesis technology allows for flexible and rapid on-surface synthesis of different peptides. By combining this technique with click chemistry, neo-glycopeptides were produced directly on a functionalized glass slide in the microarray format. Density and spatial distribution of carbohydrates can be tuned, resulting in well-defined glycan structures for multivalent display. The two lectins concanavalin A and langerin were probed with different glycans on multivalent scaffolds, revealing strong spacing-, density-, and ligand-dependent binding. In addition, we could also measure the surface dissociation constant. This approach allows for a rapid generation, screening, and optimization of a multitude of multivalent scaffolds for glycan binding.
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Affiliation(s)
- Marco Mende
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Alexandra Tsouka
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimalle 2214195BerlinGermany
| | - Jasmin Heidepriem
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimalle 2214195BerlinGermany
| | - Grigori Paris
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Daniela S. Mattes
- Institute of Microstructure TechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Stephan Eickelmann
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Vittorio Bordoni
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Robert Wawrzinek
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Felix F. Fuchsberger
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Peter H. Seeberger
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimalle 2214195BerlinGermany
| | - Christoph Rademacher
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Martina Delbianco
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
| | - Alvaro Mallagaray
- Institut für Chemie und MetabolomicsUniversität zu LübeckRatzeburger Allee 16023562LübeckGermany
| | - Felix F. Loeffler
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Muehlenberg 114476PotsdamGermany
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30
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Achilli S, Monteiro JT, Serna S, Mayer-Lambertz S, Thépaut M, Le Roy A, Ebel C, Reichardt NC, Lepenies B, Fieschi F, Vivès C. TETRALEC, Artificial Tetrameric Lectins: A Tool to Screen Ligand and Pathogen Interactions. Int J Mol Sci 2020; 21:E5290. [PMID: 32722514 PMCID: PMC7432041 DOI: 10.3390/ijms21155290] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/23/2020] [Accepted: 07/23/2020] [Indexed: 12/15/2022] Open
Abstract
C-type lectin receptor (CLR)/carbohydrate recognition occurs through low affinity interactions. Nature compensates that weakness by multivalent display of the lectin carbohydrate recognition domain (CRD) at the cell surface. Mimicking these low affinity interactions in vitro is essential to better understand CLR/glycan interactions. Here, we present a strategy to create a generic construct with a tetrameric presentation of the CRD for any CLR, termed TETRALEC. We applied our strategy to a naturally occurring tetrameric CRD, DC-SIGNR, and compared the TETRALEC ligand binding capacity by synthetic N- and O-glycans microarray using three different DC-SIGNR constructs i) its natural tetrameric counterpart, ii) the monomeric CRD and iii) a dimeric Fc-CRD fusion. DC-SIGNR TETRALEC construct showed a similar binding profile to that of its natural tetrameric counterpart. However, differences observed in recognition of low affinity ligands underlined the importance of the CRD spatial arrangement. Moreover, we further extended the applications of DC-SIGNR TETRALEC to evaluate CLR/pathogens interactions. This construct was able to recognize heat-killed Candida albicans by flow cytometry and confocal microscopy, a so far unreported specificity of DC-SIGNR. In summary, the newly developed DC-SIGNR TETRALEC tool proved to be useful to unravel novel CLR/glycan interactions, an approach which could be applied to other CLRs.
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Affiliation(s)
- Silvia Achilli
- Institut de Biologie Structurale, CEA, CNRS, University of Grenoble Alpes, F-38000 Grenoble, France; (S.A.); (M.T.); (A.L.R.); (C.E.); (F.F.)
| | - João T. Monteiro
- Immunology Unit & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.T.M.); (S.M.-L.); (B.L.)
| | - Sonia Serna
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), CIBER-BBN, Paseo Miramón 182, 20014 San Sebastian, Spain; (S.S.); (N.-C.R.)
| | - Sabine Mayer-Lambertz
- Immunology Unit & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.T.M.); (S.M.-L.); (B.L.)
| | - Michel Thépaut
- Institut de Biologie Structurale, CEA, CNRS, University of Grenoble Alpes, F-38000 Grenoble, France; (S.A.); (M.T.); (A.L.R.); (C.E.); (F.F.)
| | - Aline Le Roy
- Institut de Biologie Structurale, CEA, CNRS, University of Grenoble Alpes, F-38000 Grenoble, France; (S.A.); (M.T.); (A.L.R.); (C.E.); (F.F.)
| | - Christine Ebel
- Institut de Biologie Structurale, CEA, CNRS, University of Grenoble Alpes, F-38000 Grenoble, France; (S.A.); (M.T.); (A.L.R.); (C.E.); (F.F.)
| | - Niels-Christian Reichardt
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), CIBER-BBN, Paseo Miramón 182, 20014 San Sebastian, Spain; (S.S.); (N.-C.R.)
| | - Bernd Lepenies
- Immunology Unit & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.T.M.); (S.M.-L.); (B.L.)
| | - Franck Fieschi
- Institut de Biologie Structurale, CEA, CNRS, University of Grenoble Alpes, F-38000 Grenoble, France; (S.A.); (M.T.); (A.L.R.); (C.E.); (F.F.)
| | - Corinne Vivès
- Institut de Biologie Structurale, CEA, CNRS, University of Grenoble Alpes, F-38000 Grenoble, France; (S.A.); (M.T.); (A.L.R.); (C.E.); (F.F.)
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31
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Valverde P, Ardá A, Reichardt NC, Jiménez-Barbero J, Gimeno A. Glycans in drug discovery. MEDCHEMCOMM 2019; 10:1678-1691. [PMID: 31814952 PMCID: PMC6839814 DOI: 10.1039/c9md00292h] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/10/2019] [Indexed: 02/06/2023]
Abstract
Glycans are key players in many biological processes. They are essential for protein folding and stability and act as recognition elements in cell-cell and cell-matrix interactions. Thus, being at the heart of medically relevant biological processes, glycans have come onto the scene and are considered hot spots for biomedical intervention. The progress in biophysical techniques allowing access to an increasing molecular and structural understanding of these processes has led to the development of effective therapeutics. Indeed, strategies aimed at designing glycomimetics able to block specific lectin-carbohydrate interactions, carbohydrate-based vaccines mimicking self- and non-self-antigens as well as the exploitation of the therapeutic potential of glycosylated antibodies are being pursued. In this mini-review the most prominent contributions concerning recurrent diseases are highlighted, including bacterial and viral infections, cancer or immune-related pathologies, which certainly show the great promise of carbohydrates in drug discovery.
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Affiliation(s)
- Pablo Valverde
- CIC bioGUNE , Bizkaia Technology Park, Building 800 , 48162 Derio , Bizkaia , Spain .
| | - Ana Ardá
- CIC bioGUNE , Bizkaia Technology Park, Building 800 , 48162 Derio , Bizkaia , Spain .
| | | | - Jesús Jiménez-Barbero
- CIC bioGUNE , Bizkaia Technology Park, Building 800 , 48162 Derio , Bizkaia , Spain .
- Ikerbasque , Basque Foundation for Science , 48013 Bilbao , Bizkaia , Spain
- Department of Organic Chemistry II , University of the Basque Country , UPV/EHU , 48940 Leioa , Bizkaia , Spain
| | - Ana Gimeno
- CIC bioGUNE , Bizkaia Technology Park, Building 800 , 48162 Derio , Bizkaia , Spain .
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32
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Valverde P, Delgado S, Martínez JD, Vendeville JB, Malassis J, Linclau B, Reichardt NC, Cañada FJ, Jiménez-Barbero J, Ardá A. Molecular Insights into DC-SIGN Binding to Self-Antigens: The Interaction with the Blood Group A/B Antigens. ACS Chem Biol 2019; 14:1660-1671. [PMID: 31283166 PMCID: PMC6646960 DOI: 10.1021/acschembio.9b00458] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
The
dendritic cell-specific intracellular adhesion molecule-3-grabbing
nonintegrin (DC-SIGN) is an important receptor of the immune system.
Besides its role as pathogen recognition receptor (PRR), it also interacts
with endogenous glycoproteins through the specific recognition of
self-glycan epitopes, like LeX. However, this lectin represents
a paradigmatic case of glycan binding promiscuity, and it also has
been shown to recognize antigens with α1−α2 linked
fucose, such as the histo blood group antigens, with similar affinities
to LeX. Herein, we have studied the interaction in solution
between DC-SIGN and the blood group A and B antigens, to get insights
into the atomic details of such interaction. With a combination of
different NMR experiments, we demonstrate that the Fuc coordinates
the primary Ca2+ ion with a single binding mode through
3-OH and 4-OH. The terminal αGal/αGalNAc affords marginal
direct polar contacts with the protein, but provides a hydrophobic
hook in which V351 of the lectin perfectly fits. Moreover, we have
found that αGal, but not αGalNAc, is a weak binder itself
for DC-SIGN, which could endow an additional binding mode for the
blood group B antigen, but not for blood group A.
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Affiliation(s)
- Pablo Valverde
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
| | - Sandra Delgado
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
| | - J. Daniel Martínez
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
| | | | - Julien Malassis
- School of Chemistry, University of Southampton Highfield, Southampton SO17 1BJ, United Kingdom
| | - Bruno Linclau
- School of Chemistry, University of Southampton Highfield, Southampton SO17 1BJ, United Kingdom
| | | | | | - Jesús Jiménez-Barbero
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
- Ikerbasque, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Bizkaia, Spain
- Department of Organic Chemistry II Faculty of Science and Technology, University of the Basque Country, EHU-UPV, Leioa, Spain
| | - Ana Ardá
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
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33
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Abstract
Many invertebrates are either parasites themselves or vectors involved in parasite transmission; thereby, the interactions of parasites with final or intermediate hosts are often mediated by glycans. Therefore, it is of interest to compare the glycan structures or motifs present across invertebrate species. While a typical vertebrate modification such as sialic acid is rare in lower animals, antennal and core modifications of N-glycans are highly varied and range from core fucose, galactosylated fucose, fucosylated galactose, methyl groups, glucuronic acid and sulphate through to addition of zwitterionic moieties (phosphorylcholine, phosphoethanolamine and aminoethylphosphonate). Only in some cases are the enzymatic bases and the biological function of these modifications known. We are indeed still in the phase of discovering invertebrate glycomes primarily using mass spectrometry, but molecular biology and microarraying techniques are complementary to the determination of novel glycan structures and their functions.
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34
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Nkurunungi G, van Diepen A, Nassuuna J, Sanya RE, Nampijja M, Nambuya I, Kabagenyi J, Serna S, Reichardt NC, van Ree R, Webb EL, Elliott AM, Yazdanbakhsh M, Hokke CH. Microarray assessment of N-glycan-specific IgE and IgG profiles associated with Schistosoma mansoni infection in rural and urban Uganda. Sci Rep 2019; 9:3522. [PMID: 30837526 PMCID: PMC6401159 DOI: 10.1038/s41598-019-40009-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 02/07/2019] [Indexed: 01/01/2023] Open
Abstract
Core β-1,2-xylose and α-1,3-fucose are antigenic motifs on schistosome N-glycans, as well as prominent IgE targets on some plant and insect glycoproteins. To map the association of schistosome infection with responses to these motifs, we assessed plasma IgE and IgG reactivity using microarray technology among Ugandans from rural Schistosoma mansoni (Sm)-endemic islands (n = 209), and from proximate urban communities with lower Sm exposure (n = 62). IgE and IgG responses to core β-1,2-xylose and α-1,3-fucose modified N-glycans were higher in rural versus urban participants. Among rural participants, IgE and IgG to core β-1,2-xylose were positively associated with Sm infection and concentration peaks coincided with the infection intensity peak in early adolescence. Responses to core α-1,3-fucose were elevated regardless of Sm infection status and peaked before the infection peak. Among urban participants, Sm infection intensity was predominantly light and positively associated with responses to both motifs. Principal component and hierarchical cluster analysis reduced the data to a set of variables that captured core β-1,2-xylose- and α-1,3-fucose-specific responses, and confirmed associations with Sm and the rural environment. Responses to core β-1,2-xylose and α-1,3-fucose have distinctive relationships with Sm infection and intensity that should further be explored for associations with protective immunity, and cross-reactivity with other exposures.
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Affiliation(s)
- Gyaviira Nkurunungi
- Immunomodulation and Vaccines Programme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit, Entebbe, Uganda. .,Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom.
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jacent Nassuuna
- Immunomodulation and Vaccines Programme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit, Entebbe, Uganda
| | - Richard E Sanya
- Immunomodulation and Vaccines Programme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit, Entebbe, Uganda.,College of Health Sciences, Makerere University, Kampala, Uganda
| | - Margaret Nampijja
- Immunomodulation and Vaccines Programme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit, Entebbe, Uganda
| | - Irene Nambuya
- Immunomodulation and Vaccines Programme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit, Entebbe, Uganda
| | - Joyce Kabagenyi
- Immunomodulation and Vaccines Programme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit, Entebbe, Uganda
| | - Sonia Serna
- Glycotechnology Laboratory, Centro de Investigación Cooperativa en Biomateriales (CIC biomaGUNE), San Sebastián, Spain
| | - Niels-Christian Reichardt
- Glycotechnology Laboratory, Centro de Investigación Cooperativa en Biomateriales (CIC biomaGUNE), San Sebastián, Spain.,Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), San Sebastián, Spain
| | - Ronald van Ree
- Amsterdam University Medical Centers, Departments of Experimental Immunology and of Otorhinolaryngology, Amsterdam, The Netherlands
| | - Emily L Webb
- MRC Tropical Epidemiology Group, Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Alison M Elliott
- Immunomodulation and Vaccines Programme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI and LSHTM) Uganda Research Unit, Entebbe, Uganda.,Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Maria Yazdanbakhsh
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Cornelis H Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands.
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35
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Yang YYM, van Diepen A, Brzezicka K, Reichardt NC, Hokke CH. Glycan Microarray-Assisted Identification of IgG Subclass Targets in Schistosomiasis. Front Immunol 2018; 9:2331. [PMID: 30356796 PMCID: PMC6190862 DOI: 10.3389/fimmu.2018.02331] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 09/19/2018] [Indexed: 12/24/2022] Open
Abstract
Infection with schistosomes is accompanied by the induction of antibodies against the parasite. Despite having IgG against both protein and glycan antigens, infected individuals remain chronically infected until treated, and re-infection is common in endemic areas as immunity does not develop effectively. Parasite specific IgG subclasses may differ in functionality and effectivity with respect to effector functions that contribute to parasite killing and immunity. In this study, we investigated if specific IgG subclasses target specific antigenic schistosome glycan motifs during human infection. Sera from 41 S. mansoni infected individuals from an endemic area in Uganda were incubated on two glycan microarrays, one consisting of a large repertoire of schistosome glycoprotein- and glycolipid- derived glycans and the other consisting of chemically synthesized core xylosylated and fucosylated N-glycans also expressed by schistosomes. Our results show that highly antigenic glycan motifs, such as multi-fucosylated terminal GalNAc(β1-4)GlcNAc (LDN) can be recognized by all IgG subclasses of infection sera, however with highly variable intensities. Detailed examination of core-modified N-glycan targets revealed individual antibody responses specific for core-xylosylated and core α3-fucosylated glycan motifs that are life stage specifically expressed by schistosomes. IgG1 and IgG3 were detected against a range of N-glycan core structures, but IgG2 and IgG4, when present, were specific for the core α3-fucose and xylose motifs that were previously found to be IgE targets in schistosomiasis, and in allergies. This study is the first to address IgG subclass responses to defined helminth glycans.
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Affiliation(s)
- Y Y Michelle Yang
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Katarzyna Brzezicka
- Glycotechnology Laboratory, Centro de Investigación Cooperativa en Biomateriales (CIC biomaGUNE), San Sebastián, Spain
| | - Niels-Christian Reichardt
- Glycotechnology Laboratory, Centro de Investigación Cooperativa en Biomateriales (CIC biomaGUNE), San Sebastián, Spain.,Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), San Sebastián, Spain
| | - Cornelis H Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
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36
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Medve L, Achilli S, Serna S, Zuccotto F, Varga N, Thépaut M, Civera M, Vivès C, Fieschi F, Reichardt N, Bernardi A. On-Chip Screening of a Glycomimetic Library with C-Type Lectins Reveals Structural Features Responsible for Preferential Binding of Dectin-2 over DC-SIGN/R and Langerin. Chemistry 2018; 24:14448-14460. [PMID: 29975429 PMCID: PMC6220942 DOI: 10.1002/chem.201802577] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/03/2018] [Indexed: 12/11/2022]
Abstract
A library of mannose‐ and fucose‐based glycomimetics was synthesized and screened in a microarray format against a set of C‐type lectin receptors (CLRs) that included DC‐SIGN, DC‐SIGNR, langerin, and dectin‐2. Glycomimetic ligands able to interact with dectin‐2 were identified for the first time. Comparative analysis of binding profiles allowed their selectivity against other CLRs to be probed.
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Affiliation(s)
- Laura Medve
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Silvia Achilli
- Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale, 38000, Grenoble, France
| | - Sonia Serna
- Glycotechnology laboratory, CIC biomaGUNE, Paseo Miramón 182, 20014, Donostia-San Sebastián, Spain
| | | | - Norbert Varga
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Michel Thépaut
- Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale, 38000, Grenoble, France
| | - Monica Civera
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Corinne Vivès
- Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale, 38000, Grenoble, France
| | - Franck Fieschi
- Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale, 38000, Grenoble, France
| | - Niels Reichardt
- Glycotechnology laboratory, CIC biomaGUNE, Paseo Miramón 182, 20014, Donostia-San Sebastián, Spain.,CIBER-BBN, 20014, Donostia-San Sebastián, Spain
| | - Anna Bernardi
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
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37
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Echeverria B, Serna S, Achilli S, Vivès C, Pham J, Thépaut M, Hokke CH, Fieschi F, Reichardt NC. Chemoenzymatic Synthesis of N-glycan Positional Isomers and Evidence for Branch Selective Binding by Monoclonal Antibodies and Human C-type Lectin Receptors. ACS Chem Biol 2018; 13:2269-2279. [PMID: 29894153 DOI: 10.1021/acschembio.8b00431] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Here, we describe a strategy for the rapid preparation of pure positional isomers of complex N-glycans to complement an existing array comprising a larger number of N-glycans and smaller glycan structures. The expanded array was then employed to study context-dependent binding of structural glycan fragments by monoclonal antibodies and C-type lectins. A partial enzymatic elongation of semiprotected core structures was combined with the protecting-group-aided separation of positional isomers by preparative HPLC. This methodology, which avoids the laborious chemical differentiation of antennae, was employed for the preparation of eight biantennary N-glycans with Galβ1,4GlcNAc (LN), GalNAcβ1,4GlcNAc (LDN), and GalNAcβ1,4[Fucα1,3]GlcNAc (LDNF) motifs presented on either one or both antennae. Screening of the binding specificities of three anti-LeX monoclonal IgM antibodies raised against S. mansoni glycans and three C-type lectin receptors of the innate immune system, namely DC-SIGN, DC-SIGNR, and LSECtin, revealed a surprising context-dependent fine specificity for the recognition of the glycan motifs. Moreover, we observed a striking selection of one individual positional isomer over the other by the C-type lectins tested, underscoring the biological relevance of the structural context of glycan elements in molecular recognition.
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Affiliation(s)
- Begoña Echeverria
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Sonia Serna
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Silvia Achilli
- Université Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
| | - Corinne Vivès
- Université Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
| | - Julie Pham
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20014 San Sebastian, Spain
| | - Michel Thépaut
- Université Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
| | - Cornelis H. Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Franck Fieschi
- Université Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
| | - Niels-Christian Reichardt
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20014 San Sebastian, Spain
- CIBER-BBN, Paseo Miramón 182, 20014 San Sebastian, Spain
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38
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Yang J, Hsieh PH, Liu X, Zhou W, Zhang X, Zhao J, Xu Y, Zhang F, Linhardt RJ, Liu J. Construction and characterisation of a heparan sulphate heptasaccharide microarray. Chem Commun (Camb) 2018; 53:1743-1746. [PMID: 28106177 DOI: 10.1039/c6cc08204a] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A targeted heptasaccharide library was synthesised to prepare a heparan sulphate (HS) microarray. The array was probed with two glycan-binding proteins, HS 3-O-sulphotransferase 1 and antithrombin, demonstrating the binding selectivity between HS and proteins. The HS microarray technique will accelerate the understanding of the structure and function relationships of HS.
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Affiliation(s)
- Jianhong Yang
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA. and College of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Po-Hung Hsieh
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Xinyue Liu
- Department of Chemistry and Chemical Biology, Centre for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - Wen Zhou
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA. and School of Chinese Medical Material, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, China
| | - Xing Zhang
- Department of Chemistry and Chemical Biology, Centre for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - Jing Zhao
- Department of Chemistry and Chemical Biology, Centre for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - Yongmei Xu
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Fuming Zhang
- Department of Chemistry and Chemical Biology, Centre for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Centre for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - Jian Liu
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
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Li W, Gao Y, Li Q, Li ZJ. Ionic-liquid supported rapid synthesis of an N-glycan core pentasaccharide on a 10 g scale. Org Biomol Chem 2018; 16:4720-4727. [DOI: 10.1039/c8ob01046c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A hetero-branched N-glycan core pentasaccharide was rapidly assembled on a new ionic liquid support on a 10 g scale.
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Affiliation(s)
- Wei Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yu Gao
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Qing Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Zhong-Jun Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
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40
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Amoah AS, Asuming-Brempong EK, Obeng BB, Versteeg SA, Larbi IA, Aryeetey Y, Platts-Mills TAE, Mari A, Brzezicka K, Gyan BA, Mutocheluh M, Boakye DA, Reichardt NC, van Ree R, Hokke CH, van Diepen A, Yazdanbakhsh M. Identification of dominant anti-glycan IgE responses in school children by glycan microarray. J Allergy Clin Immunol 2017; 141:1130-1133. [PMID: 29128671 DOI: 10.1016/j.jaci.2017.09.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 09/07/2017] [Accepted: 09/29/2017] [Indexed: 11/19/2022]
Affiliation(s)
- Abena S Amoah
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana; Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands.
| | - Elias K Asuming-Brempong
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Benedicta B Obeng
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana; Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Serge A Versteeg
- Department of Experimental Immunology, Academic Medical Center, Amsterdam, The Netherlands
| | - Irene A Larbi
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Yvonne Aryeetey
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Thomas A E Platts-Mills
- Asthma and Allergic Diseases Center, University of Virginia Health System, Charlottesville, Va
| | - Adriano Mari
- Associated Centers for Molecular Allergology, Rome, Italy
| | | | - Ben A Gyan
- Department of Immunology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Mohamed Mutocheluh
- Department of Clinical Microbiology, School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniel A Boakye
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana
| | | | - Ronald van Ree
- Department of Experimental Immunology, Academic Medical Center, Amsterdam, The Netherlands; Department of Otorhinolaryngology, Academic Medical Center, Amsterdam, The Netherlands
| | - Cornelis H Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Maria Yazdanbakhsh
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
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41
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Li C, Zhu S, Ma C, Wang LX. Designer α1,6-Fucosidase Mutants Enable Direct Core Fucosylation of Intact N-Glycopeptides and N-Glycoproteins. J Am Chem Soc 2017; 139:15074-15087. [PMID: 28990779 DOI: 10.1021/jacs.7b07906] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Core fucosylation of N-glycoproteins plays a crucial role in modulating the biological functions of glycoproteins. Yet, the synthesis of structurally well-defined, core-fucosylated glycoproteins remains a challenging task due to the complexity in multistep chemical synthesis or the inability of the biosynthetic α1,6-fucosyltransferase (FUT8) to directly fucosylate full-size mature N-glycans in a chemoenzymatic approach. We report in this paper the design and generation of potential α1,6-fucosynthase and fucoligase for direct core fucosylation of intact N-glycoproteins. We found that mutation at the nucleophilic residue (D200) did not provide a typical glycosynthase from this bacterial enzyme, but several mutants with mutation at the general acid/base residue E274 of the Lactobacillus casei α1,6-fucosidase, including E274A, E274S, and E274G, acted as efficient glycoligases that could fucosylate a wide variety of complex N-glycopeptides and intact glycoproteins by using α-fucosyl fluoride as a simple donor substrate. Studies on the substrate specificity revealed that the α1,6-fucosidase mutants could introduce an α1,6-fucose moiety specifically at the Asn-linked GlcNAc moiety not only to GlcNAc-peptide but also to high-mannose and complex-type N-glycans in the context of N-glycopeptides, N-glycoproteins, and intact antibodies. This discovery opens a new avenue to a wide variety of homogeneous, core-fucosylated N-glycopeptides and N-glycoproteins that are hitherto difficult to obtain for structural and functional studies.
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Affiliation(s)
- Chao Li
- Department of Chemistry and Biochemistry, University of Maryland , 8051 Regents Drive, College Park, Maryland 20742, United States
| | - Shilei Zhu
- Department of Chemistry and Biochemistry, University of Maryland , 8051 Regents Drive, College Park, Maryland 20742, United States
| | - Christopher Ma
- Department of Chemistry and Biochemistry, University of Maryland , 8051 Regents Drive, College Park, Maryland 20742, United States
| | - Lai-Xi Wang
- Department of Chemistry and Biochemistry, University of Maryland , 8051 Regents Drive, College Park, Maryland 20742, United States
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42
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Pfrengle F. Synthetic plant glycans. Curr Opin Chem Biol 2017; 40:145-151. [PMID: 29024888 DOI: 10.1016/j.cbpa.2017.09.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 08/22/2017] [Accepted: 09/12/2017] [Indexed: 11/30/2022]
Abstract
For more than a century the primary carbon source for the production of fuels, chemicals and many materials has been fossil resources. Recently, plant polysaccharides from non-food biomass have emerged as a promising renewable alternative that may displace a significant fraction of petroleum-derived products. As a food source, plant polysaccharides can provide beneficial effects on the human immune system in the form of dietary fiber. Despite the strong impact of plant glycans on society and human health, their chemical synthesis remains largely unexplored compared to the synthesis of mammalian and bacterial glycans. Synthetic glycans such as described in this review provide an important toolbox for studying the role of carbohydrates in plant biology and their interaction with human health.
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Affiliation(s)
- Fabian Pfrengle
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany; Freie Universität Berlin, Institute of Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany.
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43
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Gade M, Chaudhary PM, Thulasiram HV, Kikkeri R. Engineering Cell Surface Glycans with Carbohydrate Enantiomers to Alter Bacterial Binding and Adhesion. ChemistrySelect 2017. [DOI: 10.1002/slct.201701875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Madhuri Gade
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
| | - Preeti Madhukar Chaudhary
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
| | - Hirekodathakallu V. Thulasiram
- Chemical Biology Unit; Division of Organic Chemistry; CSIR-National chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
| | - Raghavendra Kikkeri
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
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44
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Calderon AD, Li L, Wang PG. FUT8: from biochemistry to synthesis of core-fucosylated N-glycans. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2016-0923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Glycosylation is a major posttranslational modification of proteins. Modification in structure on N-glycans leads to many diseases. One of such modifications is core α-1,6 fucosylation, which is only found in eukaryotes. For this reason, lots of research has been done on approaches to synthesize core-fucosylated N-glycans both chemically and enzymatically, in order to have well defined structures that can be used as probes for glycan analysis and identifying functions of glycan-binding proteins. This review will focus on FUT8, the enzyme responsible for core fucosylation in mammals and the strategies that have been developed for the synthesis of core fucosylated N-glycans have been synthesized so far.
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Affiliation(s)
- Angie D. Calderon
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , GA 30303 , USA
| | - Lei Li
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , GA 30303 , USA
| | - Peng G. Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , GA 30303 , USA
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45
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Migration ofFasciola hepaticanewly excysted juveniles is inhibited by high-mannose and oligomannose-typeN-glycan-binding lectins. Parasitology 2017; 144:1708-1717. [DOI: 10.1017/s003118201700124x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
SUMMARYFasciola hepaticahas both zoonotic importance and high economic impact in livestock worldwide. After ingestion by the definitive host, the Newly Excysted Juveniles (NEJ) penetrate the intestine before reaching the peritoneal cavity. The role of some NEJ-derived proteins in invasion has been documented, but the role of NEJ glycans or lectin-binding receptors during initial infection in the gut is still unknown. To address these questions, the migration of NEJ through rat intestine was recorded at 30 min intervals up to 150 min by twoex vivomethods. Firstly, jejunal sheets were challenged with NEJ incubated with biotinylated lectins. Secondly, untreated NEJ were incubated with distal jejunum pre-treated with lectins. BothConcanavalin A(ConA) andGalanthus nivalis(GNL), which recognize mannose-typeN-glycans, significantly inhibited NEJ migration across the jejunum. Most of the lectins bound to the tegument and oral sucker of the NEJ, but only ConA and GNL maintained this interaction over 150 min. None of the lectins examined significantly reduced NEJ migration when pre-incubated with jejunal sheets, suggesting that host glycans might not be essential for initial binding/recognition of the gut by NEJ. Agents capable of blocking mannose-typeN-glycans on the NEJ tegument may have potential for disrupting infection.
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46
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Sandig G, von Horsten HH, Radke L, Blanchard V, Frohme M, Giese C, Sandig V, Hinderlich S. Engineering of CHO Cells for the Production of Recombinant Glycoprotein Vaccines with Xylosylated N-glycans. Bioengineering (Basel) 2017; 4:bioengineering4020038. [PMID: 28952517 PMCID: PMC5590453 DOI: 10.3390/bioengineering4020038] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 04/22/2017] [Accepted: 04/24/2017] [Indexed: 11/25/2022] Open
Abstract
Xylose is a general component of O-glycans in mammals. Core-xylosylation of N-glycans is only found in plants and helminth. Consequently, xylosylated N-glycans cause immunological response in humans. We have used the F-protein of the human respiratory syncytial virus (RSV), one of the main causes of respiratory tract infection in infants and elderly, as a model protein for vaccination. The RSV-F protein was expressed in CHO-DG44 cells, which were further modified by co-expression of β1,2-xylosyltransferase from Nicotiana tabacum. Xylosylation of RSV-F N-glycans was shown by monosaccharide analysis and MALDI-TOF mass spectrometry. In immunogenic studies with a human artificial lymph node model, the engineered RSV-F protein revealed improved vaccination efficacy.
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Affiliation(s)
- Grit Sandig
- Laboratory of Biochemistry, Department of Life Sciences and Technology, Beuth University of Applied Sciences Berlin, Seestrasse 64, 13347 Berlin, Germany.
| | - Hans Henning von Horsten
- Department of Life Science Engineering, HTW Berlin University of Applied Sciences, Wilhelminenhofstraße 75a, 12459 Berlin, Germany.
| | - Lars Radke
- Molecular Biotechnology and Functional Genomics, Technical University of Applied Sciences Wildau, Hochschulring 1, 15745 Wildau, Germany.
| | - Véronique Blanchard
- Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité Medical University Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.
| | - Marcus Frohme
- Molecular Biotechnology and Functional Genomics, Technical University of Applied Sciences Wildau, Hochschulring 1, 15745 Wildau, Germany.
| | | | - Volker Sandig
- ProBioGen AG, Goethestrasse 54, 13086 Berlin, Germany.
| | - Stephan Hinderlich
- Laboratory of Biochemistry, Department of Life Sciences and Technology, Beuth University of Applied Sciences Berlin, Seestrasse 64, 13347 Berlin, Germany.
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47
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Yang YYM, Li XH, Brzezicka K, Reichardt NC, Wilson RA, van Diepen A, Hokke CH. Specific anti-glycan antibodies are sustained during and after parasite clearance in Schistosoma japonicum-infected rhesus macaques. PLoS Negl Trop Dis 2017; 11:e0005339. [PMID: 28151933 PMCID: PMC5308859 DOI: 10.1371/journal.pntd.0005339] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/14/2017] [Accepted: 01/18/2017] [Indexed: 12/20/2022] Open
Abstract
Background Human immunity to Schistosoma infection requires many years of exposure, and multiple infections and treatments to develop. Unlike humans, rhesus macaques clear an established schistosome infection naturally at the same time acquiring immunity towards re-infection. In macaques, schistosome egg production decreases after 8 weeks post-infection and by week 22, physiological impairment of the worm caused by unclarified antibody-mediated processes is observed. Since strong antibody responses have been observed against schistosome glycan antigens in human and animal infections, we here investigate if anti-glycan antibodies are associated with immunity against schistosome infections in macaques. Methods We used a microarray containing a large repertoire of glycoprotein- and glycolipid-derived glycans from different schistosome life stages to analyse anti-glycan serum IgG and IgM from S. japonicum-infected macaques during the course of infection and self-cure. We also used an in vitro schistosomula assay to investigate whether macaque sera containing anti-glycan antibodies can kill schistosomula. Conclusions/significance Antibody responses towards schistosome glycans at week 4 post-infection were dominated by IgM while IgG was high at week 8. The profound increase in IgG was observed mainly for antibodies towards a large subset of glycans that contain (multi-)fucosylated terminal GalNAcβ1-4GlcNAc (LDN), and Galβ1-4(Fucα1–3)GlcNAc (LeX) motifs. In general, glycans with a higher degree of fucosylation gave rise to stronger antibody responses than non-fucosylated glycans. Interestingly, even though many IgG and IgM responses had declined by week 22 post-infection, IgG towards O-glycans with highly fucosylated LDN motifs remained. When incubating macaque serum with schistosomula in vitro, schistosomula death was positively correlated with the duration of infection of macaques; macaque serum taken 22 weeks post-infection caused most schistosomula to die, suggesting the presence of potentially protective antibodies. We hypothesize that IgGs against highly fucosylated LDN motifs that remain when the worms deteriorate are associated with infection clearance and the resistance to re-infection in macaques. Schistosomes express many glycan antigens to which antibodies are raised by the infected host. These glycans may therefore form potential vaccine targets. Unlike humans where the disease persists chronically if not treated, schistosome-infected rhesus macaques are able to elicit a self-cure process naturally. To find out if anti-glycan responses could contribute to the natural clearance process, we followed the dynamics of anti-glycan serum antibodies in Schistosoma-infected macaques in a longitudinal study starting from the onset of infection until 22 weeks post-infection, when the macaques had eliminated most of the parasites. We found that sera of macaques taken after 22 weeks of infection contained high IgG titres towards specific schistosome glycan epitopes highly abundant on schistosome larvae. Moreover, infected macaque serum at week 22 was able to kill schistosomula in vitro. Our results suggest that anti-glycan antibodies play an important role in the self-cure process and the acquired resistance to re-infection in Schistosoma infected macaques.
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Affiliation(s)
- Y. Y. Michelle Yang
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Xiao Hong Li
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, and Key Laboratory of Parasitology and Vector Biology, Ministry of Health, Shanghai, China
| | | | | | - R. Alan Wilson
- Centre for Immunology & Infection, Department of Biology, University of York, York, United Kingdom
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Cornelis H. Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
- * E-mail:
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Hokke CH, van Diepen A. Helminth glycomics - glycan repertoires and host-parasite interactions. Mol Biochem Parasitol 2016; 215:47-57. [PMID: 27939587 DOI: 10.1016/j.molbiopara.2016.12.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/18/2016] [Accepted: 12/01/2016] [Indexed: 01/12/2023]
Abstract
Glycoproteins and glycolipids of parasitic helminths play important roles in biology and host-parasite interaction. This review discusses recent helminth glycomics studies that have been expanding our insights into the glycan repertoire of helminths. Structural data are integrated with biological and immunological observations to highlight how glycomics advances our understanding of the critical roles that glycans and glycan motifs play in helminth infection biology. Prospects and challenges in helminth glycomics and glycobiology are discussed.
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Affiliation(s)
- Cornelis H Hokke
- Parasite Glycobiology Group, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands.
| | - Angela van Diepen
- Parasite Glycobiology Group, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
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Brzezicka K, Vogel U, Serna S, Johannssen T, Lepenies B, Reichardt NC. Influence of Core β-1,2-Xylosylation on Glycoprotein Recognition by Murine C-type Lectin Receptors and Its Impact on Dendritic Cell Targeting. ACS Chem Biol 2016; 11:2347-56. [PMID: 27314276 DOI: 10.1021/acschembio.6b00265] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Targeting antigens to dendritic cell subsets is a promising strategy to enhance the efficacy of vaccines. C-type lectin receptors (CLRs) expressed by dendritic cells are particularly attractive candidates since CLR engagement may promote cell uptake and may further stimulate antigen presentation and subsequent T cell activation. While most previous approaches have involved antibody-mediated CLR-targeting, glycan-based CLR targeting has become more and more attractive in recent years. In the present study, we show that small structural glycan modifications may markedly influence CLR recognition, dendritic cell targeting, and subsequent T cell activation. A biantennary N-glycan (G0) and its analogous O-2 core xylosylated N-glycan (XG0) were synthesized, covalently conjugated to the model antigen ovalbumin, and analyzed for binding to a set of murine CLR-Fc fusion proteins using lectin microarray. To evaluate whether the differential binding of G0 and XG0 to CLRs impacted dendritic cell targeting, uptake studies using murine dendritic cells were performed. Finally, effects of the ovalbumin glycoconjugates on T cell activation were measured in a dendritic cell/T cell cocultivation assay. Our results highlight the utility of glycan-based dendritic cell targeting and demonstrate that small structural differences may have a major impact on dendritic cell targeting efficacy.
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Affiliation(s)
- Katarzyna Brzezicka
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20009 San Sebastian, Spain
| | - Uwe Vogel
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Sonia Serna
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20009 San Sebastian, Spain
| | - Timo Johannssen
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg 1, 14476 Potsdam, Germany
- Freie Universität Berlin, Institute of
Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany
- University of Veterinary Medicine Hannover, Immunology
Group, Research Center of Emerging Infections and Zoonoses (RIZ), Bünteweg 17, 30559 Hannover, Germany
| | - Bernd Lepenies
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg 1, 14476 Potsdam, Germany
- Freie Universität Berlin, Institute of
Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany
- University of Veterinary Medicine Hannover, Immunology
Group, Research Center of Emerging Infections and Zoonoses (RIZ), Bünteweg 17, 30559 Hannover, Germany
| | - Niels-Christian Reichardt
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20009 San Sebastian, Spain
- CIBER-BBN, Paseo Miramón 182, 20009 San Sebastian, Spain
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50
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Geissner A, Seeberger PH. Glycan Arrays: From Basic Biochemical Research to Bioanalytical and Biomedical Applications. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2016; 9:223-47. [PMID: 27306309 DOI: 10.1146/annurev-anchem-071015-041641] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A major branch of glycobiology and glycan-focused biomedicine studies the interaction between carbohydrates and other biopolymers, most importantly, glycan-binding proteins. Today, this research into glycan-biopolymer interaction is unthinkable without glycan arrays, tools that enable high-throughput analysis of carbohydrate interaction partners. Glycan arrays offer many applications in basic biochemical research, for example, defining the specificity of glycosyltransferases and lectins such as immune receptors. Biomedical applications include the characterization and surveillance of influenza strains, identification of biomarkers for cancer and infection, and profiling of immune responses to vaccines. Here, we review major applications of glycan arrays both in basic and applied research. Given the dynamic nature of this rapidly developing field, we focus on recent findings.
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Affiliation(s)
- Andreas Geissner
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, 14476 Potsdam, Germany
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany;
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, 14476 Potsdam, Germany
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany;
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