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De León González FV, Boddington ME, Kofsky JM, Prindl MI, Capicciotti CJ. Glyco-Engineering Cell Surfaces by Exo-Enzymatic Installation of GlcNAz and LacNAz Motifs. ACS Chem Biol 2024; 19:629-640. [PMID: 38394345 DOI: 10.1021/acschembio.3c00542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Exo-enzymatic glyco-engineering of cell-surface glycoconjugates enables the selective display of well-defined glyco-motifs bearing bioorthogonal functional groups, which can be used to study glycans and their interactions with glycan-binding proteins. In recent years, strategies to edit cellular glycans by installing monosaccharides and their derivatives using glycosyltransferase enzymes have rapidly expanded. However, analogous methods to introduce chemical reporter-functionalized type 2 LacNAc motifs have not been reported. Herein, we report the chemo-enzymatic synthesis of unnatural UDP-GlcNAc and UDP-GalNAc nucleotide-sugars bearing azide, alkyne, and diazirine functionalities on the C2-acetamido group using the mutant uridylyltransferase AGX1F383A. The unnatural UDP-GlcNAc derivatives were examined as substrates for the human GlcNAc-transferase B3GNT2, where it was found that modified donors were tolerated for transfer, albeit to a lesser extent than the natural UDP-GlcNAc substrate. When the GlcNAc derivatives were examined as acceptor substrates for the human Gal-transferase B4GalT1, all derivatives were well tolerated and the enzyme could successfully form derivatized LacNAcs. B3GNT2 was also used to exo-enzymatically install GlcNAc and unnatural GlcNAc derivatives on cell-surface glycans. GlcNAc- or GlcNAz-engineered cells were further extended by B4GalT1 and UDP-Gal, producing LacNAc- or LacNAz-engineered cells. Our proof-of-concept glyco-engineering labeling strategy is amenable to different cell types and our work expands the exo-enzymatic glycan editing toolbox to selectively introduce unnatural type 2 LacNAc motifs.
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Affiliation(s)
| | - Marie E Boddington
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Joshua M Kofsky
- Department of Chemistry, Queen's University, Kingston K7L 2S8, Canada
| | - Martha I Prindl
- Department of Chemistry, Queen's University, Kingston K7L 2S8, Canada
| | - Chantelle J Capicciotti
- Department of Chemistry, Queen's University, Kingston K7L 2S8, Canada
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
- Department of Surgery, Queen's University, Kingston K7L 2V7, Canada
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2
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Mut J, Altmann S, Reising S, Meißner-Weigl J, Driessen MD, Ebert R, Seibel J. SiaNAl can be efficiently incorporated in glycoproteins of human mesenchymal stromal cells by metabolic glycoengineering. ACS Biomater Sci Eng 2024; 10:139-148. [PMID: 36946521 DOI: 10.1021/acsbiomaterials.2c01534] [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] [Indexed: 03/23/2023]
Abstract
Metabolic glycoengineering involves the stimulation of cells with functionalized monosaccharides. Glucosamine, galactosamine, and mannosamine derivatives are commercially available, but their application may lead to undirected (i.e., chemical) incorporation into proteins. However, sialic acids are attached to the ends of complex sugar chains of glycoproteins, which might be beneficial for cell surface modification via click chemistry. Thus, we studied the incorporation of chemically synthesized unnatural alkyne modified sialic acid (SiaNAl) into glycoproteins of human telomerase-immortalized mesenchymal stromal cells (hMSC-TERT) and we show that SiaNAl can be efficiently incorporated in glycoproteins involved in signal transduction and cell junction.
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Affiliation(s)
- Jürgen Mut
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
| | - Stephan Altmann
- Department of Musculoskeletal Tissue Regeneration, University of Würzburg, Friedrich-Bergius-Ring 15, Würzburg 97076, Germany
| | - Sabine Reising
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
| | - Jutta Meißner-Weigl
- Department of Musculoskeletal Tissue Regeneration, University of Würzburg, Friedrich-Bergius-Ring 15, Würzburg 97076, Germany
| | - Marc D Driessen
- Institute for Molecular Medicine, Proteome Research, University Hospital and Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Regina Ebert
- Department of Musculoskeletal Tissue Regeneration, University of Würzburg, Friedrich-Bergius-Ring 15, Würzburg 97076, Germany
| | - Jürgen Seibel
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
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Murphy LD, Huxley KE, Wilding A, Robinson C, Foucart QPO, Willems LI. Synthesis of biolabile thioalkyl-protected phosphates from an easily accessible phosphotriester precursor. Chem Sci 2023; 14:5062-5068. [PMID: 37206382 PMCID: PMC10189884 DOI: 10.1039/d3sc00693j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 04/19/2023] [Indexed: 05/21/2023] Open
Abstract
Robust methods for the synthesis of mixed phosphotriesters are essential to accelerate the development of novel phosphate-containing bioactive molecules. To enable efficient cellular uptake, phosphate groups are commonly masked with biolabile protecting groups, such as S-acyl-2-thioethyl (SATE) esters, that are removed once the molecule is inside the cell. Typically, bis-SATE-protected phosphates are synthesised through phosphoramidite chemistry. This approach, however, suffers from issues with hazardous reagents and can give unreliable yields, especially when applied to the synthesis of sugar-1-phosphate derivatives as tools for metabolic oligosaccharide engineering. Here, we report the development of an alternative approach that gives access to bis-SATE phosphotriesters in two steps from an easy to synthesise tri(2-bromoethyl)phosphotriester precursor. We demonstrate the viability of this strategy using glucose as a model substrate, onto which a bis-SATE-protected phosphate is introduced either at the anomeric position or at C6. We show compability with various protecting groups and further explore the scope and limitations of the methodology on different substrates, including N-acetylhexosamine and amino acid derivatives. The new approach facilitates the synthesis of bis-SATE-protected phosphoprobes and prodrugs and provides a platform that can boost further studies aimed at exploring the unique potential of sugar phosphates as research tools.
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Affiliation(s)
- Lloyd D Murphy
- York Structural Biology Laboratory and York Biomedical Research Institute, Department of Chemistry, University of York York YO10 5DD UK
| | - Kathryn E Huxley
- York Structural Biology Laboratory and York Biomedical Research Institute, Department of Chemistry, University of York York YO10 5DD UK
| | - Ava Wilding
- Department of Chemistry, University of York York YO10 5DD UK
| | - Cyane Robinson
- Department of Chemistry, University of York York YO10 5DD UK
| | - Quentin P O Foucart
- York Structural Biology Laboratory and York Biomedical Research Institute, Department of Chemistry, University of York York YO10 5DD UK
| | - Lianne I Willems
- York Structural Biology Laboratory and York Biomedical Research Institute, Department of Chemistry, University of York York YO10 5DD UK
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Rigolot V, Rossez Y, Biot C, Lion C. A bioorthogonal chemistry approach to detect the K1 polysialic acid capsule in Escherichia coli. RSC Chem Biol 2023; 4:173-183. [PMID: 36794016 PMCID: PMC9906323 DOI: 10.1039/d2cb00219a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Most Escherichia coli strains associated with neonatal meningitis express the K1 capsule, a sialic acid polysaccharide that is directly related to their pathogenicity. Metabolic oligosaccharide engineering (MOE) has mostly been developed in eukaryotes, but has also been successfully applied to the study of several oligosaccharides or polysaccharides constitutive of the bacterial cell wall. However, bacterial capsules are seldom targeted despite their important role as virulence factors, and the K1 polysialic acid (PSA) antigen that shields bacteria from the immune system still remains untackled. Herein, we report a fluorescence microplate assay that allows the fast and facile detection of K1 capsules with an approach that combines MOE and bioorthogonal chemistry. We exploit the incorporation of synthetic analogues of N-acetylmannosamine or N-acetylneuraminic acid, metabolic precursors of PSA, and copper-catalysed azide-alkyne cycloaddition (CuAAC) as the click chemistry reaction to specifically label the modified K1 antigen with a fluorophore. The method was optimized, validated by capsule purification and fluorescence microscopy, and applied to the detection of whole encapsulated bacteria in a miniaturized assay. We observe that analogues of ManNAc are readily incorporated into the capsule while those of Neu5Ac are less efficiently metabolized, which provides useful information regarding the capsule biosynthetic pathways and the promiscuity of the enzymes involved. Moreover, this microplate assay is transferable to screening approaches and may provide a platform to identify novel capsule-targeted antibiotics that would circumvent resistance issues.
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Affiliation(s)
- Vincent Rigolot
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle Lille France
| | - Yannick Rossez
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle Lille France
| | - Christophe Biot
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle Lille France
| | - Cédric Lion
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle Lille France
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Switching azide and alkyne tags on bioorthogonal reporters in metabolic labeling of sialylatedglycoconjugates: a comparative study. Sci Rep 2022; 12:22129. [PMID: 36550357 PMCID: PMC9780200 DOI: 10.1038/s41598-022-26521-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Sialylation of cell surface glycans plays an essential role in cell-cell interaction and communication of cells with their microenvironment. Among the tools that have been developed for the study of sialylation in living cells, metabolic oligosaccharide engineering (MOE) exploits the biosynthetic pathway of sialic acid (Sia) to incorporate unnatural monosaccharides into nascent sialylatedglycoconjugates, followed by their detection by a bioorthogonal ligation of a molecular probe. Among bioorthogonal reactions, the copper-catalyzed azide-alkyne cycloaddition (CuAAC) is the only ligation where both reactive tags can be switched on the chemical reporter or on the probe, making this reaction very flexible and adaptable to various labeling strategies. Azide- and alkyne-modified ManNAc and Sia reporters have been widely used, but per-O-acetylated ManNAz (Ac4ManNAz) remains the most popular choice so far for tracking intracellular processing of sialoglycans and cell surface sialylation in various cells. Taking advantage of CuAAC, we compared the metabolic incorporation of ManNAl, ManNAz, SiaNAl, SiaNAz and Ac4ManNAz in the human colon cell lines CCD841CoN, HT29 and HCT116, and in the two gold standard cell lines, HEK293 and HeLa. Using complementary approaches, we showed marked differences in the efficiency of labeling of sialoglycoproteins between the different chemical reporters in a given cell line, and that switching the azide and alkyne bioorthogonal tags on the analogs highly impacted their metabolic incorporation in the human colon cell lines. Our results also indicated that ManNAz was the most promiscuous metabolized reporter to study sialylation in these cells.
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Veale CGL, Talukdar A, Vauzeilles B. ICBS 2021: Looking Toward the Next Decade of Chemical Biology. ACS Chem Biol 2022; 17:728-743. [PMID: 35293726 DOI: 10.1021/acschembio.2c00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clinton G. L. Veale
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, 7700, South Africa
| | - Arindam Talukdar
- Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Boris Vauzeilles
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198, Gif-sur-Yvette, France
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Cheng B, Tang Q, Zhang C, Chen X. Glycan Labeling and Analysis in Cells and In Vivo. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2021; 14:363-387. [PMID: 34314224 DOI: 10.1146/annurev-anchem-091620-091314] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As one of the major types of biomacromolecules in the cell, glycans play essential functional roles in various biological processes. Compared with proteins and nucleic acids, the analysis of glycans in situ has been more challenging. Herein we review recent advances in the development of methods and strategies for labeling, imaging, and profiling of glycans in cells and in vivo. Cellular glycans can be labeled by affinity-based probes, including lectin and antibody conjugates, direct chemical modification, metabolic glycan labeling, and chemoenzymatic labeling. These methods have been applied to label glycans with fluorophores, which enables the visualization and tracking of glycans in cells, tissues, and living organisms. Alternatively, labeling glycans with affinity tags has enabled the enrichment of glycoproteins for glycoproteomic profiling. Built on the glycan labeling methods, strategies enabling cell-selective and tissue-specific glycan labeling and protein-specific glycan imaging have been developed. With these methods and strategies, researchers are now better poised than ever to dissect the biological function of glycans in physiological or pathological contexts.
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Affiliation(s)
- Bo Cheng
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
- Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Qi Tang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
- Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Che Zhang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
- Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Xing Chen
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
- Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
- Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Peking University, Beijing 100871, China
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Affiliation(s)
- Vincent Rigolot
- UMR 8576 CNRS Unité de Glycobiologie Structurale et Fonctionnelle Université de Lille Faculté des Sciences et Technologies Bât. C9, 59655 Villeneuve d'Ascq France
| | - Christophe Biot
- UMR 8576 CNRS Unité de Glycobiologie Structurale et Fonctionnelle Université de Lille Faculté des Sciences et Technologies Bât. C9, 59655 Villeneuve d'Ascq France
| | - Cedric Lion
- UMR 8576 CNRS Unité de Glycobiologie Structurale et Fonctionnelle Université de Lille Faculté des Sciences et Technologies Bât. C9, 59655 Villeneuve d'Ascq France
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9
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Vogt G, El Choubassi N, Herczegfalvi Á, Kölbel H, Lekaj A, Schara U, Holtgrewe M, Krause S, Horvath R, Schuelke M, Hübner C, Mundlos S, Roos A, Lochmüller H, Karcagi V, Kornak U, Fischer‐Zirnsak B. Expanding the clinical and molecular spectrum of ATP6V1A related metabolic cutis laxa. J Inherit Metab Dis 2021; 44:972-986. [PMID: 33320377 PMCID: PMC8638669 DOI: 10.1002/jimd.12341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/08/2020] [Accepted: 12/14/2020] [Indexed: 12/14/2022]
Abstract
Several inborn errors of metabolism show cutis laxa as a highly recognizable feature. One group of these metabolic cutis laxa conditions is autosomal recessive cutis laxa type 2 caused by defects in v-ATPase components or the mitochondrial proline cycle. Besides cutis laxa, muscular hypotonia and cardiac abnormalities are hallmarks of autosomal recessive cutis laxa type 2D (ARCL2D) due to pathogenic variants in ATP6V1A encoding subunit A of the v-ATPase. Here, we report on three affected individuals from two families with ARCL2D in whom we performed whole exome and Sanger sequencing. We performed functional studies in fibroblasts from one individual, summarized all known probands' clinical, molecular, and biochemical features and compared them, also to other metabolic forms of cutis laxa. We identified novel missense and the first nonsense variant strongly affecting ATP6V1A expression. All six ARCL2D affected individuals show equally severe cutis laxa and dysmorphism at birth. While for one no information was available, two died in infancy and three are now adolescents with mild or absent intellectual disability. Muscular weakness, ptosis, contractures, and elevated muscle enzymes indicated a persistent myopathy. In cellular studies, a fragmented Golgi compartment, a delayed Brefeldin A-induced retrograde transport and glycosylation abnormalities were present in fibroblasts from two individuals. This is the second and confirmatory report on pathogenic variants in ATP6V1A as the cause of this extremely rare condition and the first to describe a nonsense allele. Our data highlight the tremendous clinical variability of ATP6V1A related phenotypes even within the same family.
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Affiliation(s)
- Guido Vogt
- Institut für Medizinische Genetik und Humangenetik, Charité ‐ Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
- Max Planck Institute for Molecular Genetics, RG Development & DiseaseBerlinGermany
| | - Naji El Choubassi
- Institut für Medizinische Genetik und Humangenetik, Charité ‐ Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
- Max Planck Institute for Molecular Genetics, RG Development & DiseaseBerlinGermany
| | - Ágnes Herczegfalvi
- Department of Pediatric NeurologySemmelweis Medical University, II. Pediatric ClinicBudapestHungary
| | - Heike Kölbel
- Department of Pediatric NeurologyUniversity Hospital Essen, University Duisburg‐EssenEssenGermany
| | - Anja Lekaj
- Institut für Medizinische Genetik und Humangenetik, Charité ‐ Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Ulrike Schara
- Department of Pediatric NeurologyUniversity Hospital Essen, University Duisburg‐EssenEssenGermany
| | - Manuel Holtgrewe
- CUBI – Core Unit BioinformaticsBerlin Institute of HealthBerlinGermany
| | - Sabine Krause
- Friedrich‐Baur‐Institute, Department of NeurologyLudwig‐Maximilians‐University of MunichMunichGermany
| | - Rita Horvath
- Department of Clinical NeurosciencesUniversity of Cambridge, Cambridge Biomedical CampusCambridgeUK
| | - Markus Schuelke
- Department of Neuropediatrics, Charité‐Universitätsmedizin Berlincorporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Christoph Hübner
- Department of Neuropediatrics, Charité‐Universitätsmedizin Berlincorporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Stefan Mundlos
- Institut für Medizinische Genetik und Humangenetik, Charité ‐ Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
- Max Planck Institute for Molecular Genetics, RG Development & DiseaseBerlinGermany
| | - Andreas Roos
- Department of Pediatric NeurologyUniversity Hospital Essen, University Duisburg‐EssenEssenGermany
- Children's Hospital of Eastern Ontario Research InstituteUniversity of OttawaOttawaOntarioCanada
| | - Hanns Lochmüller
- Children's Hospital of Eastern Ontario Research InstituteUniversity of OttawaOttawaOntarioCanada
- Division of Neurology, Department of Medicine, The Ottawa HospitalOttawaCanada
- Brain and Mind Research InstituteUniversity of OttawaOttawaCanada
| | - Veronika Karcagi
- NIEH, Department of Molecular Genetics and DiagnosticsBudapestHungary
- Istenhegyi Genetic Diagnostic CentreBudapestHungary
| | - Uwe Kornak
- Institut für Medizinische Genetik und Humangenetik, Charité ‐ Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
- Max Planck Institute for Molecular Genetics, RG Development & DiseaseBerlinGermany
- Institute of Human GeneticsUniversity Medical Center GöttingenGöttingenGermany
| | - Björn Fischer‐Zirnsak
- Institut für Medizinische Genetik und Humangenetik, Charité ‐ Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
- Max Planck Institute for Molecular Genetics, RG Development & DiseaseBerlinGermany
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Rigolot V, Biot C, Lion C. To View Your Biomolecule, Click inside the Cell. Angew Chem Int Ed Engl 2021; 60:23084-23105. [PMID: 34097349 DOI: 10.1002/anie.202101502] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Indexed: 12/13/2022]
Abstract
The surging development of bioorthogonal chemistry has profoundly transformed chemical biology over the last two decades. Involving chemical partners that specifically react together in highly complex biological fluids, this branch of chemistry now allows researchers to probe biomolecules in their natural habitat through metabolic labelling technologies. Chemical reporter strategies include metabolic glycan labelling, site-specific incorporation of unnatural amino acids in proteins, and post-synthetic labelling of nucleic acids. While a majority of literature reports mark cell-surface exposed targets, implementing bioorthogonal ligations in the interior of cells constitutes a more challenging task. Owing to limiting factors such as membrane permeability of reagents, fluorescence background due to hydrophobic interactions and off-target covalent binding, and suboptimal balance between reactivity and stability of the designed molecular reporters and probes, these strategies need mindful planning to achieve success. In this review, we discuss the hurdles encountered when targeting biomolecules localized in cell organelles and give an easily accessible summary of the strategies at hand for imaging intracellular targets.
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Affiliation(s)
- Vincent Rigolot
- UMR 8576 CNRS, Unité de Glycobiologie Structurale et Fonctionnelle, Université de Lille, Faculté des Sciences et Technologies, Bât. C9, 59655, Villeneuve d'Ascq, France
| | - Christophe Biot
- UMR 8576 CNRS, Unité de Glycobiologie Structurale et Fonctionnelle, Université de Lille, Faculté des Sciences et Technologies, Bât. C9, 59655, Villeneuve d'Ascq, France
| | - Cedric Lion
- UMR 8576 CNRS, Unité de Glycobiologie Structurale et Fonctionnelle, Université de Lille, Faculté des Sciences et Technologies, Bât. C9, 59655, Villeneuve d'Ascq, France
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Huxley KE, Willems LI. Chemical reporters to study mammalian O-glycosylation. Biochem Soc Trans 2021; 49:903-913. [PMID: 33860782 PMCID: PMC8106504 DOI: 10.1042/bst20200839] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/17/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022]
Abstract
Glycans play essential roles in a range of cellular processes and have been shown to contribute to various pathologies. The diversity and dynamic nature of glycan structures and the complexities of glycan biosynthetic pathways make it challenging to study the roles of specific glycans in normal cellular function and disease. Chemical reporters have emerged as powerful tools to characterise glycan structures and monitor dynamic changes in glycan levels in a native context. A variety of tags can be introduced onto specific monosaccharides via the chemical modification of endogenous glycan structures or by metabolic or enzymatic incorporation of unnatural monosaccharides into cellular glycans. These chemical reporter strategies offer unique opportunities to study and manipulate glycan functions in living cells or whole organisms. In this review, we discuss recent advances in metabolic oligosaccharide engineering and chemoenzymatic glycan labelling, focusing on their application to the study of mammalian O-linked glycans. We describe current barriers to achieving glycan labelling specificity and highlight innovations that have started to pave the way to overcome these challenges.
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Affiliation(s)
- Kathryn E. Huxley
- York Structural Biology Laboratory, Department of Chemistry, The University of York, York YO10 5DD, U.K
| | - Lianne I. Willems
- York Structural Biology Laboratory, Department of Chemistry, The University of York, York YO10 5DD, U.K
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12
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Van Wart S, Mager DE, Bednasz CJ, Huizing M, Carrillo N. Population Pharmacokinetic Model of N-acetylmannosamine (ManNAc) and N-acetylneuraminic acid (Neu5Ac) in Subjects with GNE Myopathy. Drugs R D 2021; 21:189-202. [PMID: 33893973 PMCID: PMC8206310 DOI: 10.1007/s40268-021-00343-6] [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] [Accepted: 03/10/2021] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND GNE myopathy is a rare genetic muscle disease resulting from deficiency in an enzyme critical for the biosynthesis of N-acetylneuraminic acid (Neu5Ac, sialic acid). The uncharged Neu5Ac precursor, N-acetylmannosamine (ManNAc), is under development as an orphan drug for treating GNE myopathy. METHODS A semi-mechanistic population pharmacokinetic model was developed to simultaneously characterize plasma ManNAc and its metabolite Neu5Ac following oral administration of ManNAc to subjects with GNE myopathy. Plasma ManNAc and Neu5Ac pharmacokinetic data were obtained from two clinical studies (ClinicalTrials.gov identifiers NCT01634750, NCT02346461) and were simultaneously modeled using NONMEM. RESULTS ManNAc and Neu5Ac plasma concentrations were obtained from 34 subjects with GNE myopathy (16 male, 18 female, median age 39.5 years). The model parameter estimates included oral absorption rate (ka) = 0.256 h-1, relative bioavailability relationship with dose (F-Dose) slope = -0.405 (where F = 1 for 6-g dose), apparent clearance (CLM/F) = 631 L/h, volume of distribution (VM/F) = 506 L, Neu5Ac elimination rate constant (kout) = 0.283 h-1, initial ManNAc to Neu5Ac conversion (SLP0) = 0.000619 (ng/mL)-1 and at steady-state (SLPSS) = 0.00334 (ng/mL)-1, with a rate-constant of increase (kinc) = 0.0287 h-1. Goodness-of-fit plots demonstrated an acceptable and unbiased fit to the plasma ManNAc and Neu5Ac concentration data. Visual predictive checks demonstrated reasonable agreement between the 5th, 50th, and 95th percentiles of the observed and simulated data. CONCLUSIONS This population pharmacokinetic model can be used to evaluate ManNAc dosing regimens and to calculate Neu5Ac production and exposure following oral administration of ManNAc in subjects with GNE myopathy.
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Affiliation(s)
- Scott Van Wart
- Enhanced Pharmacodynamics, LLC, 701 Ellicott Street, Buffalo, New York, 14203, USA.
| | - Donald E Mager
- Enhanced Pharmacodynamics, LLC, 701 Ellicott Street, Buffalo, New York, 14203, USA
| | - Cindy J Bednasz
- Enhanced Pharmacodynamics, LLC, 701 Ellicott Street, Buffalo, New York, 14203, USA
| | - Marjan Huizing
- Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Nuria Carrillo
- Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
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13
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Huizing M, Hackbarth ME, Adams DR, Wasserstein M, Patterson MC, Walkley SU, Gahl WA. Free sialic acid storage disorder: Progress and promise. Neurosci Lett 2021; 755:135896. [PMID: 33862140 DOI: 10.1016/j.neulet.2021.135896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 12/27/2022]
Abstract
Lysosomal free sialic acid storage disorder (FSASD) is an extremely rare, autosomal recessive, neurodegenerative, multisystemic disorder caused by defects in the lysosomal sialic acid membrane exporter SLC17A5 (sialin). SLC17A5 defects cause free sialic acid and some other acidic hexoses to accumulate in lysosomes, resulting in enlarged lysosomes in some cell types and 10-100-fold increased urinary excretion of free sialic acid. Clinical features of FSASD include coarse facial features, organomegaly, and progressive neurodegenerative symptoms with cognitive impairment, cerebellar ataxia and muscular hypotonia. Central hypomyelination with cerebellar atrophy and thinning of the corpus callosum are also prominent disease features. Around 200 FSASD cases are reported worldwide, with the clinical spectrum ranging from a severe infantile onset form, often lethal in early childhood, to a mild, less severe form with subjects living into adulthood, also called Salla disease. The pathobiology of FSASD remains poorly understood and FSASD is likely underdiagnosed. Known patients have experienced a diagnostic delay due to the rarity of the disorder, absence of routine urine sialic acid testing, and non-specific clinical symptoms, including developmental delay, ataxia and infantile hypomyelination. There is no approved therapy for FSASD. We initiated a multidisciplinary collaborative effort involving worldwide academic clinical and scientific FSASD experts, the National Institutes of Health (USA), and the FSASD patient advocacy group (Salla Treatment and Research [S.T.A.R.] Foundation) to overcome the scientific, clinical and financial challenges facing the development of new treatments for FSASD. We aim to collect data that incentivize industry to further develop, obtain approval for, and commercialize FSASD treatments. This review summarizes current aspects of FSASD diagnosis, prevalence, etiology, and disease models, as well as challenges on the path to therapeutic approaches for FSASD.
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Affiliation(s)
- Marjan Huizing
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, United States.
| | - Mary E Hackbarth
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, United States
| | - David R Adams
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, United States
| | - Melissa Wasserstein
- Departments of Pediatrics and Genetics, The Children's Hospital at Montefiore, Bronx, NY, 10467, United States; Dominick P. Purpura Department of Neuroscience, Rose F. Kennedy Intellectual and Developmental Disabilities Research Center, Albert Einstein College of Medicine, Bronx, NY, 10461, United States
| | - Marc C Patterson
- Department of Neurology, Mayo Clinic, Rochester, MN, 55905, United States
| | - Steven U Walkley
- Dominick P. Purpura Department of Neuroscience, Rose F. Kennedy Intellectual and Developmental Disabilities Research Center, Albert Einstein College of Medicine, Bronx, NY, 10461, United States
| | - William A Gahl
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, United States
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14
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Han Z, Thuy-Boun PS, Pfeiffer W, Vartabedian VF, Torkamani A, Teijaro JR, Wolan DW. Identification of an N-acetylneuraminic acid-presenting bacteria isolated from a human microbiome. Sci Rep 2021; 11:4763. [PMID: 33637779 PMCID: PMC7910532 DOI: 10.1038/s41598-021-83875-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/01/2021] [Indexed: 01/31/2023] Open
Abstract
N-Acetylneuraminic acid is the most abundant sialic acid (SA) in humans and is expressed as the terminal sugar on intestinal mucus glycans. Several pathogenic bacteria harvest and display host SA on their own surfaces to evade Siglec-mediated host immunity. While previous studies have identified bacterial enzymes associated with SA catabolism, no reported methods permit the selective labeling, tracking, and quantitation of SA-presenting microbes within complex multi-microbial systems. We combined metabolic labeling, click chemistry, 16S rRNA gene, and whole-genome sequencing to track and identify SA-presenting microbes from a cultured human fecal microbiome. We isolated a new strain of Escherichia coli that incorporates SA onto its own surface and encodes for the nanT, neuA, and neuS genes necessary for harvesting and presenting SA. Our method is applicable to the identification of SA-presenting bacteria from human, animal, and environmental microbiomes, as well as providing an entry point for the investigation of surface-expressed SA-associated structures.
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Affiliation(s)
- Zhen Han
- grid.214007.00000000122199231Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037 USA
| | - Peter S. Thuy-Boun
- grid.214007.00000000122199231Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037 USA
| | - Wayne Pfeiffer
- grid.266100.30000 0001 2107 4242San Diego Supercomputer Center, University of California, San Diego, La Jolla, CA 92093 USA
| | - Vincent F. Vartabedian
- grid.214007.00000000122199231Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037 USA
| | - Ali Torkamani
- grid.214007.00000000122199231Scripps Research Translational Institute, The Scripps Research Institute, La Jolla, CA 92037 USA ,grid.214007.00000000122199231Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037 USA
| | - John R. Teijaro
- grid.214007.00000000122199231Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037 USA
| | - Dennis W. Wolan
- grid.214007.00000000122199231Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037 USA ,grid.214007.00000000122199231Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037 USA
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15
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Kitowski A, Bernardes GJL. A Sweet Galactose Transfer: Metabolic Oligosaccharide Engineering as a Tool To Study Glycans in Plasmodium Infection. Chembiochem 2020; 21:2696-2700. [PMID: 32289201 PMCID: PMC7540713 DOI: 10.1002/cbic.202000226] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Indexed: 12/13/2022]
Abstract
The introduction of chemical reporter groups into glycan structures through metabolic oligosaccharide engineering (MOE) followed by bio-orthogonal ligation is an important tool to study glycosylation. We show the incorporation of synthetic galactose derivatives that bear terminal alkene groups in hepatic cells, with and without infection by Plasmodium berghei parasites, the causative agent of malaria. Additionally, we demonstrated the contribution of GLUT1 to the transport of these galactose derivatives, and observed a consistent increase in the uptake of these compounds going from naïve to P. berghei-infected cells. Finally, we used MOE to study the interplay between Plasmodium parasites and their mosquito hosts, to reveal a possible transfer of galactose building blocks from the latter to the former. This strategy has the potential to provide new insights into Plasmodium glycobiology as well as for the identification and characterization of key glycan structures for further vaccine development.
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Affiliation(s)
- Annabel Kitowski
- Instituto de Medicina Molecular João Lobo AntunesFaculdade de MedicinaUniversidade de LisboaAvenida Professor Egas Moniz1649-028LisboaPortugal
| | - Gonçalo J. L. Bernardes
- Instituto de Medicina Molecular João Lobo AntunesFaculdade de MedicinaUniversidade de LisboaAvenida Professor Egas Moniz1649-028LisboaPortugal
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
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16
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Nagasundaram M, Horstkorte R, Gnanapragassam VS. Sialic Acid Metabolic Engineering of Breast Cancer Cells Interferes with Adhesion and Migration. Molecules 2020; 25:molecules25112632. [PMID: 32517035 PMCID: PMC7321191 DOI: 10.3390/molecules25112632] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/12/2020] [Accepted: 06/01/2020] [Indexed: 01/10/2023] Open
Abstract
Breast cancer is the most frequent cancer diagnosed in women and the second most common cancer-causing death worldwide. The major problem around the management of breast cancer is its high heterogeneity and the development of therapeutic resistance. Therefore, understanding the fundamental breast cancer biology is crucial for better diagnosis and therapy. Protein sialylation is a key posttranslational modification of glycoproteins, which is also involved in tumor progression and metastasis. Increased expression of sialic acids (Sia) can interfere in receptor–ligand interactions and might protect tumor cells from the immune system. Furthermore, Sia content on the cell membrane plays a role in cancer resistance towards chemo- and radiation therapy. In this study, we glycoengineered MCF-7 breast cancer cells using a series of non-natural Sia precursors, which are prolonged in their acyl side chain. We observed a significant reduction in the natural Sia (N-Acetylneuraminic acid) expression after cultivation of MCF-7 cells with these Sia precursors. In addition, the expression of polySia, a unique glycosylation of the neural cell adhesion molecule NCAM, which interferes with cell adhesion, was decreased. We conclude that sialic acid engineering i) opens up novel opportunities to study the biological role of Sia in breast cancer and ii) provides a toolbox to examine the sialic acid-dependent complex cellular alterations in breast cancer cell biology.
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17
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Moons SJ, Adema GJ, Derks MT, Boltje TJ, Büll C. Sialic acid glycoengineering using N-acetylmannosamine and sialic acid analogs. Glycobiology 2020; 29:433-445. [PMID: 30913290 DOI: 10.1093/glycob/cwz026] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/07/2019] [Accepted: 03/21/2019] [Indexed: 12/16/2022] Open
Abstract
Sialic acids cap the glycans of cell surface glycoproteins and glycolipids. They are involved in a multitude of biological processes and aberrant sialic acid expression is associated with several pathologies. Sialic acids modulate the characteristics and functions of glycoproteins and regulate cell-cell as well as cell-extracellular matrix interactions. Pathogens such as influenza virus use sialic acids to infect host cells and cancer cells exploit sialic acids to escape from the host's immune system. The introduction of unnatural sialic acids with different functionalities into surface glycans enables the study of the broad biological functions of these sugars and presents a therapeutic option to intervene with pathological processes involving sialic acids. Multiple chemically modified sialic acid analogs can be directly utilized by cells for sialoglycan synthesis. Alternatively, analogs of the natural sialic acid precursor sugar N-Acetylmannosamine (ManNAc) can be introduced into the sialic acid biosynthesis pathway resulting in the intracellular conversion into the corresponding sialic acid analog. Both, ManNAc and sialic acid analogs, have been employed successfully for a large variety of glycoengineering applications such as glycan imaging, targeting toxins to tumor cells, inhibiting pathogen binding, or altering immune cell activity. However, there are significant differences between ManNAc and sialic acid analogs with respect to their chemical modification potential and cellular metabolism that should be considered in sialic acid glycoengineering experiments.
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Affiliation(s)
- Sam J Moons
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen, The Netherlands
| | - Gosse J Adema
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, Nijmegen, The Netherlands
| | - Max Tgm Derks
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen, The Netherlands
| | - Thomas J Boltje
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen, The Netherlands
| | - Christian Büll
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, Nijmegen, The Netherlands
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18
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Lim S, Yoon HY, Jang HJ, Song S, Kim W, Park J, Lee KE, Jeon S, Lee S, Lim DK, Kim BS, Kim DE, Kim K. Dual-Modal Imaging-Guided Precise Tracking of Bioorthogonally Labeled Mesenchymal Stem Cells in Mouse Brain Stroke. ACS NANO 2019; 13:10991-11007. [PMID: 31584257 DOI: 10.1021/acsnano.9b02173] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Noninvasive and precise stem cell tracking after transplantation in living subject is very important to monitor both stem cell destinations and their in vivo fate, which is closely related to their therapeutic efficacy. Herein, we developed bicyclo[6.1.0]nonyne (BCN)-conjugated glycol chitosan nanoparticles (BCN-NPs) as a delivery system of dual-modal stem cell imaging probes. Near-infrared fluorescent (NIRF) dye Cy5.5 was chemically conjugated to the BCN-NPs, and then oleic acid-coated superparamagnetic iron oxide nanoparticles (OA-Fe3O4 NPs) were encapsulated into BCN-NPs, resulting in Cy5.5-labeled and OA-Fe3O4 NP-encapsulated BCN-NPs (BCN-dual-NPs). For bioorthogonal labeling of human adipose-derived mesenchymal stem cells (hMSCs), first, hMSCs were treated with tetra-acetylated N-azidoacetyl-d-mannosamine (Ac4ManNAz) for generating azide (-N3) groups onto their surface via metabolic glycoengineering. Second, azide groups on the cell surface were successfully chemically labeled with BCN-dual-NPs via bioorthogonal click chemistry in vitro. This bioorthogonal labeling of hMSCs could greatly increase the cell labeling efficiency, safety, and imaging sensitivity, compared to only nanoparticle-derived labeling technology. The dual-modal imaging-guided precise tracking of bioorthogonally labeled hMSCs was tested in the photothrombotic stroke mouse model via intraparenchymal injection. Finally, BCN-dual-NPs-labeled hMSCs could be effectively tracked by their migration from the implanted site to the brain stroke lesion using NIRF/T2-weighted magnetic resonance (MR) dual-modal imaging for 14 days. Our observation would provide a potential application of bioorthogonally labeled stem cell imaging in regenerative medicine by providing safety and high labeling efficiency in vitro and in vivo.
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Affiliation(s)
- Seungho Lim
- Center for Theragnosis, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
- School of Chemical and Biological Engineering , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul , 08826 , Republic of Korea
| | - Hong Yeol Yoon
- Center for Theragnosis, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
| | - Hee Jeong Jang
- Molecular Imaging and Neurovascular Research Laboratory , Dongguk University College of Medicine , 27 Dongguk-ro , Ilsandong-gu, Goyang-si , 10326 , Republic of Korea
| | - Sukyung Song
- Center for Theragnosis, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
| | - Woojun Kim
- Center for Theragnosis, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology , Korea University , 145 Anam-ro , Seongbuk-gu, Seoul , 02841 , Republic of Korea
| | - Jooho Park
- Center for Theragnosis, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
| | - Kyung Eun Lee
- Advanced Analysis Center , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
| | - Sangmin Jeon
- Center for Theragnosis, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
| | - Sangmin Lee
- Department of Pharmacy, College of Pharmacy , Wonkwang University , 460 Iksan-daero , Iksan-si , 54538 , Republic of Korea
| | - Dong-Kwon Lim
- KU-KIST Graduate School of Converging Science and Technology , Korea University , 145 Anam-ro , Seongbuk-gu, Seoul , 02841 , Republic of Korea
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul , 08826 , Republic of Korea
| | - Dong-Eog Kim
- Molecular Imaging and Neurovascular Research Laboratory , Dongguk University College of Medicine , 27 Dongguk-ro , Ilsandong-gu, Goyang-si , 10326 , Republic of Korea
| | - Kwangmeyung Kim
- Center for Theragnosis, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , 5 Hwarang-ro 14-gil , Seongbuk-gu, Seoul , 02792 , Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology , Korea University , 145 Anam-ro , Seongbuk-gu, Seoul , 02841 , Republic of Korea
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19
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Wang Y, Zhang N, Lu S, Wang J, Bing T, Liu X, Chen C, Shangguan D. Dual-Monitoring Glycosylation and Local pH in Live Cells by Metabolic Oligosaccharide Engineering with a Ratiometric Fluorescent Tag. Anal Chem 2019; 91:13720-13728. [DOI: 10.1021/acs.analchem.9b03047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yan Wang
- College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Nan Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shanshan Lu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junyan Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tao Bing
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangjun Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyan Chen
- College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Dihua Shangguan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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20
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Novel Zebrafish Mono-α2,8-sialyltransferase (ST8Sia VIII): An Evolutionary Perspective of α2,8-Sialylation. Int J Mol Sci 2019; 20:ijms20030622. [PMID: 30709055 PMCID: PMC6387029 DOI: 10.3390/ijms20030622] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 12/28/2022] Open
Abstract
The mammalian mono-α2,8-sialyltransferase ST8Sia VI has been shown to catalyze the transfer of a unique sialic acid residues onto core 1 O-glycans leading to the formation of di-sialylated O-glycosylproteins and to a lesser extent to diSia motifs onto glycolipids like GD1a. Previous studies also reported the identification of an orthologue of the ST8SIA6 gene in the zebrafish genome. Trying to get insights into the biosynthesis and function of the oligo-sialylated glycoproteins during zebrafish development, we cloned and studied this fish α2,8-sialyltransferase homologue. In situ hybridization experiments demonstrate that expression of this gene is always detectable during zebrafish development both in the central nervous system and in non-neuronal tissues. Intriguingly, using biochemical approaches and the newly developed in vitro MicroPlate Sialyltransferase Assay (MPSA), we found that the zebrafish recombinant enzyme does not synthetize diSia motifs on glycoproteins or glycolipids as the human homologue does. Using comparative genomics and molecular phylogeny approaches, we show in this work that the human ST8Sia VI orthologue has disappeared in the ray-finned fish and that the homologue described in fish correspond to a new subfamily of α2,8-sialyltransferase named ST8Sia VIII that was not maintained in Chondrichtyes and Sarcopterygii.
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21
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Witkos TM, Chan WL, Joensuu M, Rhiel M, Pallister E, Thomas-Oates J, Mould AP, Mironov AA, Biot C, Guerardel Y, Morelle W, Ungar D, Wieland FT, Jokitalo E, Tassabehji M, Kornak U, Lowe M. GORAB scaffolds COPI at the trans-Golgi for efficient enzyme recycling and correct protein glycosylation. Nat Commun 2019; 10:127. [PMID: 30631079 PMCID: PMC6328613 DOI: 10.1038/s41467-018-08044-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 12/06/2018] [Indexed: 01/08/2023] Open
Abstract
COPI is a key mediator of protein trafficking within the secretory pathway. COPI is recruited to the membrane primarily through binding to Arf GTPases, upon which it undergoes assembly to form coated transport intermediates responsible for trafficking numerous proteins, including Golgi-resident enzymes. Here, we identify GORAB, the protein mutated in the skin and bone disorder gerodermia osteodysplastica, as a component of the COPI machinery. GORAB forms stable domains at the trans-Golgi that, via interactions with the COPI-binding protein Scyl1, promote COPI recruitment to these domains. Pathogenic GORAB mutations perturb Scyl1 binding or GORAB assembly into domains, indicating the importance of these interactions. Loss of GORAB causes impairment of COPI-mediated retrieval of trans-Golgi enzymes, resulting in a deficit in glycosylation of secretory cargo proteins. Our results therefore identify GORAB as a COPI scaffolding factor, and support the view that defective protein glycosylation is a major disease mechanism in gerodermia osteodysplastica.
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Affiliation(s)
- Tomasz M Witkos
- School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, The Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK
| | - Wing Lee Chan
- Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Institut fuer Medizinische Genetik und Humangenetik, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, 13353, Germany
- FG Development & Disease, Max Planck Institut fuer Molekulare Genetik, Berlin, 14195, Germany
| | - Merja Joensuu
- Cell and Molecular Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, 00014, Finland
- Clem Jones Centre of Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, Brisbane, QLD 4072, Australia
- Minerva Foundation Institute for Medical Research, 00290, Helsinki, Finland
| | - Manuel Rhiel
- Heidelberg University Biochemistry Center, Heidelberg University, Heidelberg, 69120, Germany
| | - Ed Pallister
- Department of Chemistry, University of York, York, YO10 5DG, UK
| | | | - A Paul Mould
- School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, The Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK
| | - Alex A Mironov
- School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, The Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK
| | - Christophe Biot
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - Yann Guerardel
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - Willy Morelle
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - Daniel Ungar
- Department of Biology, University of York, York, YO10 5DD, UK
| | - Felix T Wieland
- Heidelberg University Biochemistry Center, Heidelberg University, Heidelberg, 69120, Germany
| | - Eija Jokitalo
- Cell and Molecular Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, 00014, Finland
| | - May Tassabehji
- School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, The Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester Academic Health Sciences Centre (MAHSC), Manchester, M13 9WL, UK
| | - Uwe Kornak
- Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Institut fuer Medizinische Genetik und Humangenetik, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, 13353, Germany
- FG Development & Disease, Max Planck Institut fuer Molekulare Genetik, Berlin, 14195, Germany
| | - Martin Lowe
- School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, The Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK.
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22
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Zimmermann M, Ehret J, Kolmar H, Zimmer A. Impact of Acetylated and Non-Acetylated Fucose Analogues on IgG Glycosylation. Antibodies (Basel) 2019; 8:antib8010009. [PMID: 31544815 PMCID: PMC6640710 DOI: 10.3390/antib8010009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/02/2019] [Accepted: 01/05/2019] [Indexed: 12/14/2022] Open
Abstract
The biological activity of therapeutic antibodies is highly influenced by their glycosylation profile. A valuable method for increasing the cytotoxic efficacy of antibodies, which are used, for example, in cancer treatment, is the reduction of core fucosylation, as this enhances the elimination of target cells through antibody-dependent cell-mediated cytotoxicity. Development of fucose analogues is currently the most promising strategy to reduce core fucosylation without cell line engineering. Since peracetylated sugars display enhanced cell permeability over the highly polar free hydroxy sugars, this work sought to compare the efficacy of peracetylated sugars to their unprotected forms. Two potent fucose analogues, 2-deoxy-2-fluorofucose and 5-alkynylfucose, and their acetylated forms were compared for their effects on fucosylation. 5-alkynylfucose proved to be more potent than 2-deoxy-2-fluorofucose at reducing core fucosylation but was associated with a significant higher incorporation of the alkynylated fucose analogue. Acetylation of the sugar yielded only slightly lower fucosylation levels suggesting that acetylation has a minor impact on cellular entry. Even though the efficacy of all tested components was confirmed, results presented in this study also show a significant incorporation of unnatural fucose analogues into the glycosylation pattern of the produced IgG, with unknown effect on safety and potency of the monoclonal antibody.
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Affiliation(s)
- Martina Zimmermann
- Merck Life Sciences, Upstream R&D, Frankfurter Strasse 250, 64293 Darmstadt, Germany.
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Alarich-Weiss-Strasse 4, 64287 Darmstadt, Germany.
| | - Janike Ehret
- Merck Life Sciences, Upstream R&D, Frankfurter Strasse 250, 64293 Darmstadt, Germany.
| | - Harald Kolmar
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Alarich-Weiss-Strasse 4, 64287 Darmstadt, Germany.
| | - Aline Zimmer
- Merck Life Sciences, Upstream R&D, Frankfurter Strasse 250, 64293 Darmstadt, Germany.
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23
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Carrillo N, Malicdan MC, Huizing M. GNE Myopathy: Etiology, Diagnosis, and Therapeutic Challenges. Neurotherapeutics 2018; 15:900-914. [PMID: 30338442 PMCID: PMC6277305 DOI: 10.1007/s13311-018-0671-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
GNE myopathy, previously known as hereditary inclusion body myopathy (HIBM), or Nonaka myopathy, is a rare autosomal recessive muscle disease characterized by progressive skeletal muscle atrophy. It has an estimated prevalence of 1 to 9:1,000,000. GNE myopathy is caused by mutations in the GNE gene which encodes the rate-limiting enzyme of sialic acid biosynthesis. The pathophysiology of the disease is not entirely understood, but hyposialylation of muscle glycans is thought to play an essential role. The typical presentation is bilateral foot drop caused by weakness of the anterior tibialis muscles with onset in early adulthood. The disease slowly progresses over the next decades to involve skeletal muscles throughout the body, with relative sparing of the quadriceps until late stages of the disease. The diagnosis of GNE myopathy should be considered in young adults presenting with bilateral foot drop. Histopathologic findings on muscle biopsies include fiber size variation, atrophic fibers, lack of inflammation, and the characteristic "rimmed" vacuoles on modified Gomori trichome staining. The diagnosis is confirmed by the presence of pathogenic (mostly missense) mutations in both alleles of the GNE gene. Although there is no approved therapy for this disease, preclinical and clinical studies of several potential therapies are underway, including substrate replacement and gene therapy-based strategies. However, developing therapies for GNE myopathy is complicated by several factors, including the rare incidence of disease, limited preclinical models, lack of reliable biomarkers, and slow disease progression.
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Affiliation(s)
- Nuria Carrillo
- Medical Genetics Branch, National Human Genome Research Institute (NHGRI), National Institutes of Health, Bethesda, MD, 20892, USA.
| | - May C Malicdan
- Medical Genetics Branch, National Human Genome Research Institute (NHGRI), National Institutes of Health, Bethesda, MD, 20892, USA
| | - Marjan Huizing
- Medical Genetics Branch, National Human Genome Research Institute (NHGRI), National Institutes of Health, Bethesda, MD, 20892, USA
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24
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Gilormini PA, Batt AR, Pratt MR, Biot C. Asking more from metabolic oligosaccharide engineering. Chem Sci 2018; 9:7585-7595. [PMID: 30393518 PMCID: PMC6187459 DOI: 10.1039/c8sc02241k] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/17/2018] [Indexed: 01/20/2023] Open
Abstract
Metabolic Oligosaccharide Engineering (MOE) is a groundbreaking strategy which has been largely used in the last decades, as a powerful strategy for glycans understanding. The present review aims to highlight recent studies that are pushing the boundaries of MOE applications.
Glycans form one of the four classes of biomolecules, are found in every living system and present a huge structural and functional diversity. As an illustration of this diversity, it has been reported that more than 50% of the human proteome is glycosylated and that 2% of the human genome is dedicated to glycosylation processes. Glycans are involved in many biological processes such as signalization, cell–cell or host pathogen interactions, immunity, etc. However, fundamental processes associated with glycans are not yet fully understood and the development of glycobiology is relatively recent compared to the study of genes or proteins. Approximately 25 years ago, the studies of Bertozzi's and Reutter's groups paved the way for metabolic oligosaccharide engineering (MOE), a strategy which consists in the use of modified sugar analogs which are taken up into the cells, metabolized, incorporated into glycoconjugates, and finally detected in a specific manner. This groundbreaking strategy has been widely used during the last few decades and the concomitant development of new bioorthogonal ligation reactions has allowed many advances in the field. Typically, MOE has been used to either visualize glycans or identify different classes of glycoproteins. The present review aims to highlight recent studies that lie somewhat outside of these more traditional approaches and that are pushing the boundaries of MOE applications.
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Affiliation(s)
- Pierre-André Gilormini
- University of Lille , CNRS UMR 8576 , UGSF - Unité de Glycobiologie Structurale et Fonctionnelle , F-59000 Lille , France .
| | - Anna R Batt
- Department of Chemistry , University of Southern California , 840 Downey Way , LJS 250 Los Angeles , CA 90089 , USA
| | - Matthew R Pratt
- Department of Chemistry , University of Southern California , 840 Downey Way , LJS 250 Los Angeles , CA 90089 , USA.,Department of Biological Sciences , University of Southern California , 840 Downey Way , LJS 250 Los Angeles , CA 90089 , USA
| | - Christophe Biot
- University of Lille , CNRS UMR 8576 , UGSF - Unité de Glycobiologie Structurale et Fonctionnelle , F-59000 Lille , France .
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25
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Ashikov A, Abu Bakar N, Wen XY, Niemeijer M, Rodrigues Pinto Osorio G, Brand-Arzamendi K, Hasadsri L, Hansikova H, Raymond K, Vicogne D, Ondruskova N, Simon MEH, Pfundt R, Timal S, Beumers R, Biot C, Smeets R, Kersten M, Huijben K, Linders PTA, van den Bogaart G, van Hijum SAFT, Rodenburg R, van den Heuvel LP, van Spronsen F, Honzik T, Foulquier F, van Scherpenzeel M, Lefeber DJ, Mirjam W, Han B, Helen M, Helen M, Peter VH, Jiddeke VDK, Diego M, Lars M, Katja BH, Jozef H, Majid A, Kevin C, Johann TWN. Integrating glycomics and genomics uncovers SLC10A7 as essential factor for bone mineralization by regulating post-Golgi protein transport and glycosylation. Hum Mol Genet 2018; 27:3029-3045. [DOI: 10.1093/hmg/ddy213] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/29/2018] [Indexed: 01/13/2023] Open
Affiliation(s)
- Angel Ashikov
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Nurulamin Abu Bakar
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Xiao-Yan Wen
- Zebrafish Centre for Advanced Drug Discovery & Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, ON, Canada
- Department of Medicine, Physiology & Institute of Medical Science, Faculty of Medicine, University of Toronto, ON, Canada
| | - Marco Niemeijer
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Glentino Rodrigues Pinto Osorio
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Koroboshka Brand-Arzamendi
- Zebrafish Centre for Advanced Drug Discovery & Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, ON, Canada
- Department of Medicine, Physiology & Institute of Medical Science, Faculty of Medicine, University of Toronto, ON, Canada
| | - Linda Hasadsri
- Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Hana Hansikova
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Kimiyo Raymond
- Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Dorothée Vicogne
- CNRS-UMR 8576, Structural and Functional Glycobiology Unit, FRABIO, University of Lille, 59655 Villeneuve d’Ascq, France
| | - Nina Ondruskova
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Marleen E H Simon
- Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Sharita Timal
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Roel Beumers
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Christophe Biot
- CNRS-UMR 8576, Structural and Functional Glycobiology Unit, FRABIO, University of Lille, 59655 Villeneuve d’Ascq, France
| | - Roel Smeets
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Marjan Kersten
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Karin Huijben
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Peter T A Linders
- Department of Tumor Immunology, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Geert van den Bogaart
- Department of Tumor Immunology, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Sacha A F T van Hijum
- Center for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- NIZO, 6710 BA Ede, The Netherlands
| | - Richard Rodenburg
- Radboud Center for Mitochondrial Disorders, Translational Metabolic Laboratory, Department of Pediatrics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | | | - Francjan van Spronsen
- Division of Metabolic Diseases, Beatrix Children’s Hospital, University Medical Center Groningen, PO BOX 30.001, 9700 RB Groningen, The Netherlands
| | - Tomas Honzik
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Francois Foulquier
- CNRS-UMR 8576, Structural and Functional Glycobiology Unit, FRABIO, University of Lille, 59655 Villeneuve d’Ascq, France
| | - Monique van Scherpenzeel
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Dirk J Lefeber
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Translational Metabolic Laboratory, Department Laboratory Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Wamelink Mirjam
- Department of Clinical Chemistry, VU University Medical Center, Amsterdam, The Netherlands
| | - Brunner Han
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Mundy Helen
- Centre for Inherited Metabolic Disease, Evelina Children's Hospital, Guys and St Thomas NHS Foundation Trust, London SE1 7EH, UK
| | - Michelakakis Helen
- Department of Enzymology and Cellular Function, Institute of Child Health, Athens, Greece
| | - van Hasselt Peter
- Department of Metabolic Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| | - van de Kamp Jiddeke
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - Martinelli Diego
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Research Hospital, Rome, Italy
| | - Morkrid Lars
- Department of Medical Biochemistry, Oslo University Hospital, and Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | | | - Alfadhel Majid
- King Abdullah International Medical Research Centre, King Saud bin Abdul Aziz University for Health Sciences, Division of Genetics, Department of Pediatrics, King Abdullah Specialized Children Hospital, King Abdul Aziz Medical City, Ministry of National Guard-Health Affairs (NGHA), Riyadh, Saudi Arabia
| | - Carpenter Kevin
- NSW Biochemical Genetics Service, The Children's Hospital at Westmead, Disciplines of Genetic Medicine & Child and Adolescent Health, The University of Sydney, NSW 2145, Australia
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26
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Gilormini PA, Lion C, Vicogne D, Guérardel Y, Foulquier F, Biot C. Chemical glycomics enrichment: imaging the recycling of sialic acid in living cells. J Inherit Metab Dis 2018; 41:515-523. [PMID: 29294191 PMCID: PMC5959963 DOI: 10.1007/s10545-017-0118-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/28/2017] [Accepted: 11/20/2017] [Indexed: 01/10/2023]
Abstract
The development of metabolic oligosaccharide engineering (MOE) over the past two decades enabled the bioimaging studies of glycosylation processes in physio-pathological contexts. Herein, we successfully applied the chemical reporter strategy to image the fate of sialylated glycoconjugates in healthy and sialin-deficient patient fibroblasts. This chemical glycomics enrichment is a powerful tool for tracking sialylated glycoconjugates and probing lysosomal recycling capacities. Thus, such strategies appear fundamental for the characterization of lysosomal storage diseases.
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Affiliation(s)
- Pierre André Gilormini
- University Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - Cédric Lion
- University Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - Dorothée Vicogne
- University Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - Yann Guérardel
- University Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - François Foulquier
- University Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France.
| | - Christophe Biot
- University Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France.
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27
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Sun Y, Hong S, Xie R, Huang R, Lei R, Cheng B, Sun D, Du Y, Nycholat CM, Paulson JC, Chen X. Mechanistic Investigation and Multiplexing of Liposome-Assisted Metabolic Glycan Labeling. J Am Chem Soc 2018; 140:3592-3602. [PMID: 29446631 PMCID: PMC6031147 DOI: 10.1021/jacs.7b10990] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Metabolic labeling of glycans with bioorthogonal reporters has been widely used for glycan imaging and glycoproteomic profiling. One of the intrinsic limitations of metabolic glycan labeling is the lack of cell-type selectivity. The recently developed liposome-assisted bioorthogonal reporter (LABOR) strategy provides a promising means to overcome this limitation, but the mechanism of LABOR has not been investigated in detail. In this work, we performed a mechanistic study on LABOR and explored its multiplexing capability. Our studies support an endocytosis-salvage mechanism. The ligand-targeted liposomes encapsulating azidosugars are internalized into the endosome via the receptor-mediated endocytosis. Unlike the conventional drug delivery, LABOR does not rely on the endosomal escape pathways. Rather, the liposomes are allowed to enter the lysosome, inside which the azidosugars are released from the liposomes. The released azidosugars then intercept the salvage pathways of monosaccharides and get transported into the cytosol by lysosomal sugar transporters. Based on this mechanism, we expanded the scope of LABOR by evaluating a series of ligand-receptor pairs for targeting sialoglycans in various cell types. Different ligand types including small molecules, antibodies, aptamers, and peptides could be easily implemented into LABOR. Finally, we demonstrated that the sialoglycans in two distinct cell populations in a co-cultured system could be selectively labeled with two distinct chemical reporters by performing a multiplexed LABOR labeling.
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Affiliation(s)
- Yuting Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Senlian Hong
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Ran Xie
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Rongbing Huang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ruoxing Lei
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Bo Cheng
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Deen Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yifei Du
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Corwin M. Nycholat
- Departments of Molecular Medicine and Immunology & Microbiology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - James C. Paulson
- Departments of Molecular Medicine and Immunology & Microbiology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Xing Chen
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
- Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Peking University, Beijing 100871, China
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28
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Simon C, Spriet C, Hawkins S, Lion C. Visualizing Lignification Dynamics in Plants with Click Chemistry: Dual Labeling is BLISS! J Vis Exp 2018. [PMID: 29443107 PMCID: PMC5908702 DOI: 10.3791/56947] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Lignin is one of the most prevalent biopolymers on the planet and a major component of lignocellulosic biomass. This phenolic polymer plays a vital structural and protective role in the development and life of higher plants. Although the intricate mechanisms regulating lignification processes in vivo strongly impact the industrial valorization of many plant-derived products, the scientific community still has a long way to go to decipher them. In a simple three-step workflow, the dual labeling protocol presented herein enables bioimaging studies of actively lignifying zones of plant tissues. The first step consists in the metabolic incorporation of two independent chemical reporters, surrogates of the two native monolignols that give rise to lignin H- and G-units. After incorporation into growing lignin polymers, each reporter is then specifically labeled with its own fluorescent probe via a sequential combination of bioorthogonal SPAAC/CuAAC click reactions. Combined with lignin autofluorescence, this approach leads to the generation of three-color localization maps of lignin within plant cell walls by confocal fluorescence microscopy and provides precise spatial information on the presence or absence of active lignification machinery at the scale of plant tissues, cells and different cell wall layers.
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Affiliation(s)
- Clémence Simon
- UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, CNRS, UMR 8576, Université de Lille
| | - Corentin Spriet
- UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, CNRS, UMR 8576, Université de Lille
| | - Simon Hawkins
- UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, CNRS, UMR 8576, Université de Lille
| | - Cedric Lion
- UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, CNRS, UMR 8576, Université de Lille;
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29
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Péanne R, de Lonlay P, Foulquier F, Kornak U, Lefeber DJ, Morava E, Pérez B, Seta N, Thiel C, Van Schaftingen E, Matthijs G, Jaeken J. Congenital disorders of glycosylation (CDG): Quo vadis? Eur J Med Genet 2017; 61:643-663. [PMID: 29079546 DOI: 10.1016/j.ejmg.2017.10.012] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/05/2017] [Accepted: 10/22/2017] [Indexed: 12/12/2022]
Abstract
The survey summarizes in its first part the current status of knowledge on the Congenital Disorders of Glycosylation (CDG) with regard to their phenotypic spectrum, diagnostic and therapeutic strategies, and pathophysiology. It documents the clinical and basic research activities, and efforts to involve patients and their families. In the second part, it tries to look into the future of CDG. More specific biomarkers are needed for fast CDG diagnosis and treatment monitoring. Whole genome sequencing will play an increasingly important role in the molecular diagnosis of unsolved CDG. Epigenetic defects are expected to join the rapidly expanding genetic and allelic heterogeneity of the CDG family. Novel treatments are urgently needed particularly for PMM2-CDG, the most prevalent CDG. Patient services such as apps should be developed e.g. to document the natural history and monitor treatment. Networking (EURO-CDG, the European Reference Networks (MetabERN)) is an efficient tool to disseminate knowledge and boost collaboration at all levels. The final goal is of course to improve the quality of life of the patients and their families.
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Affiliation(s)
- Romain Péanne
- Center for Human Genetics, KU Leuven, Leuven, Belgium; LIA GLYCOLAB4CDG France/Belgium (International Associated Laboratory "Laboratory for the Research on Congenital Disorders of Glycosylation - from cellular mechanisms to cure", France
| | - Pascale de Lonlay
- APHP, Hôpital Necker Enfants Malades, Service et Centre de Référence des Maladies Métaboliques, Université Paris Descartes, Institut Imagine, Paris, France
| | - François Foulquier
- Université de Lille, Unité de Glycobiologie Structurale et Fonctionnelle, Villeneuve D'ascq, France; LIA GLYCOLAB4CDG France/Belgium (International Associated Laboratory "Laboratory for the Research on Congenital Disorders of Glycosylation - from cellular mechanisms to cure", Belgium
| | - Uwe Kornak
- Institut für Medizinische Genetik und Humangenetik, and Berlin-Brandenburg Centre for Regenerative Therapies, Charité University, Berlin, Germany
| | - Dirk J Lefeber
- Department of Neurology, Translational Metabolic Laboratory, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Eva Morava
- Center for Metabolic Diseases, KU Leuven, Leuven, Belgium
| | - Belén Pérez
- Centro de Diagnostico de Enfermedades Moleculares, Centro de Biología Molecular-SO UAM-CSIC, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), IdiPaz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Nathalie Seta
- AP-HP, Hôpital Bichat, Biochemistry Laboratory, Paris, France
| | - Christian Thiel
- Stoffwechselzentrum, Universitäts-Kinderklinik, Heidelberg, Germany
| | - Emile Van Schaftingen
- Laboratory of Biochemistry, de Duve Institute, University of Louvain, Brussels, Belgium
| | - Gert Matthijs
- Center for Human Genetics, KU Leuven, Leuven, Belgium; LIA GLYCOLAB4CDG France/Belgium (International Associated Laboratory "Laboratory for the Research on Congenital Disorders of Glycosylation - from cellular mechanisms to cure", France.
| | - Jaak Jaeken
- Center for Metabolic Diseases, KU Leuven, Leuven, Belgium
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30
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Noel M, Gilormini P, Cogez V, Yamakawa N, Vicogne D, Lion C, Biot C, Guérardel Y, Harduin‐Lepers A. Probing the CMP-Sialic Acid Donor Specificity of Two Human β-d-Galactoside Sialyltransferases (ST3Gal I and ST6Gal I) Selectively Acting on O- and N-Glycosylproteins. Chembiochem 2017; 18:1251-1259. [PMID: 28395125 PMCID: PMC5499661 DOI: 10.1002/cbic.201700024] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Indexed: 12/29/2022]
Abstract
Sialylation of glycoproteins and glycolipids is catalyzed by sialyltransferases in the Golgi of mammalian cells, whereby sialic acid residues are added at the nonreducing ends of oligosaccharides. Because sialylated glycans play critical roles in a number of human physio-pathological processes, the past two decades have witnessed the development of modified sialic acid derivatives for a better understanding of sialic acid biology and for the development of new therapeutic targets. However, nothing is known about how individual mammalian sialyltransferases tolerate and behave towards these unnatural CMP-sialic acid donors. In this study, we devised several approaches to investigate the donor specificity of the human β-d-galactoside sialyltransferases ST6Gal I and ST3Gal I by using two CMP-sialic acids: CMP-Neu5Ac, and CMP-Neu5N-(4pentynoyl)neuraminic acid (CMP-SiaNAl), an unnatural CMP-sialic acid donor with an extended and functionalized N-acyl moiety.
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Affiliation(s)
- Maxence Noel
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Pierre‐André Gilormini
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Virginie Cogez
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Nao Yamakawa
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Dorothée Vicogne
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Cédric Lion
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Christophe Biot
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Yann Guérardel
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
| | - Anne Harduin‐Lepers
- Université de LilleCNRSUMR 8576UGSFUnité de Glycobiologie Structurale et Fonctionnelle59000LilleFrance
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31
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Zhu Y, Chen X. Expanding the Scope of Metabolic Glycan Labeling in Arabidopsis thaliana. Chembiochem 2017; 18:1286-1296. [PMID: 28383803 DOI: 10.1002/cbic.201700069] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Indexed: 12/26/2022]
Abstract
Metabolic glycan labeling (MGL) has gained wide utility and has become a useful tool for probing glycosylation in living systems. For the past three decades, the development and application of MGL have mostly focused on animal glycosylation. Recently, exploiting MGL for studying plant glycosylation has gained interest. Here, we describe a systematic evaluation of MGL for fluorescence imaging of root glycans in Arabidopsis thaliana. Nineteen monosaccharide analogues containing a bioorthogonal group (azide, alkyne, or cyclopropene) were synthesized and evaluated for metabolic incorporation into root glycans. Among these unnatural sugars, 14 (including three new compounds) were evaluated in plants for the first time. Our results showed that five unnatural sugars metabolically labeled root glycans efficiently, and enabled fluorescence imaging by bioorthogonal conjugation with fluorophores. We optimized the experimental procedures for MGL in Arabidopsis. Finally, distinct distribution patterns of the newly synthesized glycans were observed along the root developmental zones, thus indicating regulated biosynthesis of glycans during root development. We envision that MGL will find broad applications in plant glycobiology.
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Affiliation(s)
- Yuntao Zhu
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Xing Chen
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.,Peking-Tsinghua Center for Life Sciences, Synthetic and Functional Biomolecules Center and, Key Laboratory of Bioorganic Chemistry and, Molecular Engineering of Ministry of Education, Peking University, Beijing, 100871, China
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Lion C, Simon C, Huss B, Blervacq AS, Tirot L, Toybou D, Spriet C, Slomianny C, Guerardel Y, Hawkins S, Biot C. BLISS: A Bioorthogonal Dual-Labeling Strategy to Unravel Lignification Dynamics in Plants. Cell Chem Biol 2017; 24:326-338. [DOI: 10.1016/j.chembiol.2017.02.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 12/15/2016] [Accepted: 02/01/2017] [Indexed: 01/11/2023]
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Gilormini PA, Lion C, Noel M, Krzewinski-Recchi MA, Harduin-Lepers A, Guérardel Y, Biot C. Improved workflow for the efficient preparation of ready to use CMP-activated sialic acids. Glycobiology 2016; 26:1151-1156. [PMID: 27543325 DOI: 10.1093/glycob/cww084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 08/12/2016] [Accepted: 08/13/2016] [Indexed: 11/13/2022] Open
Abstract
Natural and synthetically modified cytidine monophosphate activated sialic acids (CMP-Sias) are essential research assets in the field of glycobiology: among other applications, they can be used to probe glycans, detect sialylation defects at the cell surface or carry out detailed studies of sialyltransferase activities. However, these chemical tools are notoriously unstable because of hydrolytic decomposition, and are very time-consuming and costly to obtain. They are nigh impossible to store with satisfactory purity, and their preparation requires multiple laborious purification steps that usually lead to heavy product loss. Using in situ time-resolved 31P phosphorus nuclear magnetic resonance (31P NMR), we precisely established the kinetics of formation and degradation of a number of CMP-Sias including CMP-Neu5Ac, CMP-Neu5Gc, CMP-SiaNAl and CMP-SiaNAz in several experimental conditions. 31P NMR can be carried out in undeuterated solvents and is a sensitive and nondestructive technique that allows for direct in situ monitoring and optimization of chemo-enzymatic syntheses that involve phosphorus-containing species. Thus, we showed that CMP-sialic acid derivatives can be robustly obtained in high yields using the readily available Neisseria meningitidis CMP-sialic acid synthase. This integrated workflow takes less than an hour, and the freshly prepared CMP-Sias can be directly transferred to sialylation biological assays without any purification step.
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Affiliation(s)
- Pierre-André Gilormini
- Université Lille 1, CNRS, UMR 8576, UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Bât. C9, Cité Scientifique, F-59000 Lille, France
| | - Cédric Lion
- Université Lille 1, CNRS, UMR 8576, UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Bât. C9, Cité Scientifique, F-59000 Lille, France
| | - Maxence Noel
- Université Lille 1, CNRS, UMR 8576, UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Bât. C9, Cité Scientifique, F-59000 Lille, France
| | - Marie-Ange Krzewinski-Recchi
- Université Lille 1, CNRS, UMR 8576, UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Bât. C9, Cité Scientifique, F-59000 Lille, France
| | - Anne Harduin-Lepers
- Université Lille 1, CNRS, UMR 8576, UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Bât. C9, Cité Scientifique, F-59000 Lille, France
| | - Yann Guérardel
- Université Lille 1, CNRS, UMR 8576, UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Bât. C9, Cité Scientifique, F-59000 Lille, France
| | - Christophe Biot
- Université Lille 1, CNRS, UMR 8576, UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Bât. C9, Cité Scientifique, F-59000 Lille, France
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Wratil PR, Horstkorte R, Reutter W. Metabolic Glycoengineering with N-Acyl Side Chain Modified Mannosamines. Angew Chem Int Ed Engl 2016; 55:9482-512. [PMID: 27435524 DOI: 10.1002/anie.201601123] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Indexed: 12/14/2022]
Abstract
In metabolic glycoengineering (MGE), cells or animals are treated with unnatural derivatives of monosaccharides. After entering the cytosol, these sugar analogues are metabolized and subsequently expressed on newly synthesized glycoconjugates. The feasibility of MGE was first discovered for sialylated glycans, by using N-acyl-modified mannosamines as precursor molecules for unnatural sialic acids. Prerequisite is the promiscuity of the enzymes of the Roseman-Warren biosynthetic pathway. These enzymes were shown to tolerate specific modifications of the N-acyl side chain of mannosamine analogues, for example, elongation by one or more methylene groups (aliphatic modifications) or by insertion of reactive groups (bioorthogonal modifications). Unnatural sialic acids are incorporated into glycoconjugates of cells and organs. MGE has intriguing biological consequences for treated cells (aliphatic MGE) and offers the opportunity to visualize the topography and dynamics of sialylated glycans in vitro, ex vivo, and in vivo (bioorthogonal MGE).
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Affiliation(s)
- Paul R Wratil
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin Berlin, Arnimallee 22, 14195, Berlin, Germany.
| | - Rüdiger Horstkorte
- Institut für Physiologische Chemie, Martin-Luther-Universität Halle-Wittenberg, Hollystrasse 1, 06114, Halle, Germany.
| | - Werner Reutter
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin Berlin, Arnimallee 22, 14195, Berlin, Germany
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Wratil PR, Horstkorte R, Reutter W. Metabolisches Glykoengineering mitN-Acyl-Seiten- ketten-modifizierten Mannosaminen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601123] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Paul R. Wratil
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie; Charité - Universitätsmedizin Berlin; Arnimallee 22 14195 Berlin Deutschland
| | - Rüdiger Horstkorte
- Institut für Physiologische Chemie; Martin-Luther-Universität Halle-Wittenberg; Hollystraße 1 06114 Halle Deutschland
| | - Werner Reutter
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie; Charité - Universitätsmedizin Berlin; Arnimallee 22 14195 Berlin Deutschland
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