1
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Kurfiřt M, Hamala V, Beránek J, Červenková Šťastná L, Červený J, Dračínský M, Bernášková J, Spiwok V, Bosáková Z, Bojarová P, Karban J. Synthesis and unexpected binding of monofluorinated N,N'-diacetylchitobiose and LacdiNAc to wheat germ agglutinin. Bioorg Chem 2024; 147:107395. [PMID: 38705105 DOI: 10.1016/j.bioorg.2024.107395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/15/2024] [Accepted: 04/23/2024] [Indexed: 05/07/2024]
Abstract
Fluorination of carbohydrate ligands of lectins is a useful approach to examine their binding profile, improve their metabolic stability and lipophilicity, and convert them into 19F NMR-active probes. However, monofluorination of monovalent carbohydrate ligands often leads to a decreased or completely lost affinity. By chemical glycosylation, we synthesized the full series of methyl β-glycosides of N,N'-diacetylchitobiose (GlcNAcβ(1-4)GlcNAcβ1-OMe) and LacdiNAc (GalNAcβ(1-4)GlcNAcβ1-OMe) systematically monofluorinated at all hydroxyl positions. A competitive enzyme-linked lectin assay revealed that the fluorination at the 6'-position of chitobioside resulted in an unprecedented increase in affinity to wheat germ agglutinin (WGA) by one order of magnitude. For the first time, we have characterized the binding profile of a previously underexplored WGA ligand LacdiNAc. Surprisingly, 4'-fluoro-LacdiNAc bound WGA even stronger than unmodified LacdiNAc. These observations were interpreted using molecular dynamic calculations along with STD and transferred NOESY NMR techniques, which gave evidence for the strengthening of CH/π interactions after deoxyfluorination of the side chain of the non-reducing GlcNAc. These results highlight the potential of fluorinated glycomimetics as high-affinity ligands of lectins and 19F NMR-active probes.
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Affiliation(s)
- Martin Kurfiřt
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 1/135, CZ-165 00 Praha 6, Czech Republic; University of Chemistry and Technology, Technická 5, CZ-166 28 Praha 6, Czech Republic
| | - Vojtěch Hamala
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 1/135, CZ-165 00 Praha 6, Czech Republic; University of Chemistry and Technology, Technická 5, CZ-166 28 Praha 6, Czech Republic
| | - Jan Beránek
- University of Chemistry and Technology, Technická 5, CZ-166 28 Praha 6, Czech Republic
| | - Lucie Červenková Šťastná
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 1/135, CZ-165 00 Praha 6, Czech Republic
| | - Jakub Červený
- Laboratory of Biotransformation, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00 Praha 4, Czech Republic; Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-128 43 Praha 2, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo Náměstí 542/2, CZ-160 00 Praha 6, Czech Republic
| | - Jana Bernášková
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 1/135, CZ-165 00 Praha 6, Czech Republic
| | - Vojtěch Spiwok
- University of Chemistry and Technology, Technická 5, CZ-166 28 Praha 6, Czech Republic
| | - Zuzana Bosáková
- Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-128 43 Praha 2, Czech Republic
| | - Pavla Bojarová
- Laboratory of Biotransformation, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00 Praha 4, Czech Republic
| | - Jindřich Karban
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 1/135, CZ-165 00 Praha 6, Czech Republic.
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2
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Leusmann S, Ménová P, Shanin E, Titz A, Rademacher C. Glycomimetics for the inhibition and modulation of lectins. Chem Soc Rev 2023; 52:3663-3740. [PMID: 37232696 PMCID: PMC10243309 DOI: 10.1039/d2cs00954d] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Indexed: 05/27/2023]
Abstract
Carbohydrates are essential mediators of many processes in health and disease. They regulate self-/non-self- discrimination, are key elements of cellular communication, cancer, infection and inflammation, and determine protein folding, function and life-times. Moreover, they are integral to the cellular envelope for microorganisms and participate in biofilm formation. These diverse functions of carbohydrates are mediated by carbohydrate-binding proteins, lectins, and the more the knowledge about the biology of these proteins is advancing, the more interfering with carbohydrate recognition becomes a viable option for the development of novel therapeutics. In this respect, small molecules mimicking this recognition process become more and more available either as tools for fostering our basic understanding of glycobiology or as therapeutics. In this review, we outline the general design principles of glycomimetic inhibitors (Section 2). This section is then followed by highlighting three approaches to interfere with lectin function, i.e. with carbohydrate-derived glycomimetics (Section 3.1), novel glycomimetic scaffolds (Section 3.2) and allosteric modulators (Section 3.3). We summarize recent advances in design and application of glycomimetics for various classes of lectins of mammalian, viral and bacterial origin. Besides highlighting design principles in general, we showcase defined cases in which glycomimetics have been advanced to clinical trials or marketed. Additionally, emerging applications of glycomimetics for targeted protein degradation and targeted delivery purposes are reviewed in Section 4.
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Affiliation(s)
- Steffen Leusmann
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Petra Ménová
- University of Chemistry and Technology, Prague, Technická 5, 16628 Prague 6, Czech Republic
| | - Elena Shanin
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Christoph Rademacher
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
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3
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Meiers J, Dastbaz J, Adam S, Rasheed S, Kirsch SH, Meiser P, Gross P, Müller R, Titz A. Pineapple Lectin AcmJRL Binds SARS-CoV-2 Spike Protein in a Carbohydrate-Dependent Fashion. Chembiochem 2023; 24:e202200463. [PMID: 36420784 PMCID: PMC10107836 DOI: 10.1002/cbic.202200463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
The highly glycosylated spike protein of SARS-CoV-2 is essential for infection and constitutes a prime target for antiviral agents and vaccines. The pineapple-derived jacalin-related lectin AcmJRL is present in the medication bromelain in significant quantities and has previously been described to bind mannosides. Here, we performed a large ligand screening of AcmJRL by glycan array analysis, quantified the interaction with carbohydrates and validated high-mannose glycans as preferred ligands. Because the SARS-CoV-2 spike protein was previously reported to carry a high proportion of high-mannose N-glycans, we tested the binding of AcmJRL to the recombinantly produced extraviral domain of spike protein. We could demonstrate that AcmJRL binds the spike protein with a low-micromolar KD in a carbohydrate-dependent fashion.
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Affiliation(s)
- Joscha Meiers
- Chemical Biology of Carbohydrates (CBCH)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of ChemistrySaarland University66123SaarbrückenGermany
| | - Jan Dastbaz
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of PharmacySaarland University66123SaarbrückenGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Sebastian Adam
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Drug Design and Optimisation (DDOP)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Sari Rasheed
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of PharmacySaarland University66123SaarbrückenGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Susanne H. Kirsch
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Peter Meiser
- URSAPHARM Arzneimittel GmbH66129SaarbrückenGermany
| | - Peter Gross
- Hochschule KaiserslauternProtein Chemistry Group66953PirmasensGermany
| | - Rolf Müller
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of PharmacySaarland University66123SaarbrückenGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of ChemistrySaarland University66123SaarbrückenGermany
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4
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Le Guern F, Gaucher A, Cosentino G, Lagune M, Haagsman HP, Roux AL, Prim D, Rottman M. Labeled TEMPO-Oxidized Mannan Differentiates Binding Profiles within the Collectin Families. Int J Mol Sci 2022; 23:ijms232416067. [PMID: 36555720 PMCID: PMC9786299 DOI: 10.3390/ijms232416067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/05/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Establishing the rapid and accurate diagnosis of sepsis is a key component to the improvement of clinical outcomes. The ability of analytical platforms to rapidly detect pathogen-associated molecular patterns (PAMP) in blood could provide a powerful host-independent biomarker of sepsis. A novel concept was investigated based on the idea that a pre-bound and fluorescent ligand could be released from lectins in contact with high-affinity ligands (such as PAMPs). To create fluorescent ligands with precise avidity, the kinetically followed TEMPO oxidation of yeast mannan and carbodiimide coupling were used. The chemical modifications led to decreases in avidity between mannan and human collectins, such as the mannan-binding lectin (MBL) and human surfactant protein D (SP-D), but not in porcine SP-D. Despite this effect, these fluorescent derivatives were captured by human lectins using highly concentrated solutions. The resulting fluorescent beads were exposed to different solutions, and the results showed that displacements occur in contact with higher affinity ligands, proving that two-stage competition processes can occur in collectin carbohydrate recognition mechanisms. Moreover, the fluorescence loss depends on the discrepancy between the respective avidities of the recognized ligand and the fluorescent mannan. Chemically modulated fluorescent ligands associated with a diversity of collectins may lead to the creation of diagnostic tools suitable for multiplex array assays and the identification of high-avidity ligands.
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Affiliation(s)
- Florent Le Guern
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 78035 Versailles, France
- Faculté de Médecine Simone Veil, Université de Versailles St Quentin, INSERM UMR U1173, 2 Avenue de la Source de la Bièvre, 78180 Montigny le Bretonneux, France
| | - Anne Gaucher
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 78035 Versailles, France
| | - Gina Cosentino
- Faculté de Médecine Simone Veil, Université de Versailles St Quentin, INSERM UMR U1173, 2 Avenue de la Source de la Bièvre, 78180 Montigny le Bretonneux, France
| | - Marion Lagune
- Faculté de Médecine Simone Veil, Université de Versailles St Quentin, INSERM UMR U1173, 2 Avenue de la Source de la Bièvre, 78180 Montigny le Bretonneux, France
| | - Henk P. Haagsman
- Section Molecular Host Defence, Division Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CS Utrecht, The Netherlands
| | - Anne-Laure Roux
- Hôpital Raymond Poincaré, AP-HP, GHU Paris Saclay, 104 Bd Poincaré, 92380 Garches, France
- Plateforme des Biomarqueurs Innovants, 104 Bd Poincaré, 92380 Garches, France
| | - Damien Prim
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 78035 Versailles, France
| | - Martin Rottman
- Faculté de Médecine Simone Veil, Université de Versailles St Quentin, INSERM UMR U1173, 2 Avenue de la Source de la Bièvre, 78180 Montigny le Bretonneux, France
- Hôpital Raymond Poincaré, AP-HP, GHU Paris Saclay, 104 Bd Poincaré, 92380 Garches, France
- Plateforme des Biomarqueurs Innovants, 104 Bd Poincaré, 92380 Garches, France
- Correspondence:
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5
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Fittolani G, Shanina E, Guberman M, Seeberger PH, Rademacher C, Delbianco M. Automatisierte Glykan‐Assemblierung
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F‐markierter Glykansonden ermöglicht Hochdurchsatz‐NMR‐Untersuchungen von Protein‐Glykan‐Interaktionen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Giulio Fittolani
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Elena Shanina
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Mónica Guberman
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Derzeitige Adresse: Medicinal Chemistry Leibniz-Forschungsinstitut für Molekulare Pharmakologie Robert-Rössle Straße 10 13125 Berlin Deutschland
| | - Peter H. Seeberger
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Christoph Rademacher
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
- Derzeitige Adresse: Department of Pharmaceutical Chemistry University of Vienna Althanstraße 14 1080 Wien Österreich
- Derzeitige Adresse: Department of Microbiology, Immunobiology and Genetics Max F. Perutz Labs Campus Vienna Biocenter 5 1030 Wien Österreich
| | - Martina Delbianco
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
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6
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Fittolani G, Shanina E, Guberman M, Seeberger PH, Rademacher C, Delbianco M. Automated Glycan Assembly of 19 F-labeled Glycan Probes Enables High-Throughput NMR Studies of Protein-Glycan Interactions. Angew Chem Int Ed Engl 2021; 60:13302-13309. [PMID: 33784430 PMCID: PMC8252726 DOI: 10.1002/anie.202102690] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/19/2021] [Indexed: 12/23/2022]
Abstract
Protein-glycan interactions mediate important biological processes, including pathogen host invasion and cellular communication. Herein, we showcase an expedite approach that integrates automated glycan assembly (AGA) of 19 F-labeled probes and high-throughput NMR methods, enabling the study of protein-glycan interactions. Synthetic Lewis type 2 antigens were screened against seven glycan binding proteins (GBPs), including DC-SIGN and BambL, respectively involved in HIV-1 and lung infections in immunocompromised patients, confirming the preference for fucosylated glycans (Lex , H type 2, Ley ). Previously unknown glycan-lectin weak interactions were detected, and thermodynamic data were obtained. Enzymatic reactions were monitored in real-time, delivering kinetic parameters. These results demonstrate the utility of AGA combined with 19 F NMR for the discovery and characterization of glycan-protein interactions, opening up new perspectives for 19 F-labeled complex glycans.
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Affiliation(s)
- Giulio Fittolani
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
| | - Elena Shanina
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
| | - Mónica Guberman
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Current address: Medicinal ChemistryLeibniz-Forschungsinstitut für Molekulare PharmakologieRobert-Rössle Strasse 1013125BerlinGermany
| | - Peter H. Seeberger
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
| | - Christoph Rademacher
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
- Current address: Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141080ViennaAustria
- Current address: Department of Microbiology, Immunobiology and GeneticsMax F. Perutz LabsCampus Vienna Biocenter 51030ViennaAustria
| | - Martina Delbianco
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
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7
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Lectin antagonists in infection, immunity, and inflammation. Curr Opin Chem Biol 2019; 53:51-67. [DOI: 10.1016/j.cbpa.2019.07.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/12/2019] [Accepted: 07/18/2019] [Indexed: 12/12/2022]
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8
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Sommer R, Rox K, Wagner S, Hauck D, Henrikus SS, Newsad S, Arnold T, Ryckmans T, Brönstrup M, Imberty A, Varrot A, Hartmann RW, Titz A. Anti-biofilm Agents against Pseudomonas aeruginosa: A Structure-Activity Relationship Study of C-Glycosidic LecB Inhibitors. J Med Chem 2019; 62:9201-9216. [PMID: 31553873 PMCID: PMC6873108 DOI: 10.1021/acs.jmedchem.9b01120] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Biofilm formation is a key mechanism of antimicrobial resistance. We have recently reported two classes of orally bioavailable C-glycosidic inhibitors of the Pseudomonas aeruginosa lectin LecB with antibiofilm activity. They proved efficient in target binding, were metabolically stable, nontoxic, selective, and potent in inhibiting formation of bacterial biofilm. Here, we designed and synthesized six new carboxamides and 24 new sulfonamides for a detailed structure-activity relationship for two clinically representative LecB variants. Sulfonamides generally showed higher inhibition compared to carboxamides, which was rationalized based on crystal structure analyses. Substitutions at the thiophenesulfonamide increased binding through extensive contacts with a lipophilic protein patch. These metabolically stable compounds showed a further increase in potency toward the target and in biofilm inhibition assays. In general, we established the structure-activity relationship for these promising antibiofilm agents and showed that modification of the sulfonamide residue bears future optimization potential.
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Affiliation(s)
- Roman Sommer
- Chemical Biology of Carbohydrates , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research , D-66123 Saarbrücken , Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany
| | - Katharina Rox
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany.,Chemical Biology , Helmholtz Centre for Infection Research , D-38124 Braunschweig , Germany
| | - Stefanie Wagner
- Chemical Biology of Carbohydrates , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research , D-66123 Saarbrücken , Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany
| | - Dirk Hauck
- Chemical Biology of Carbohydrates , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research , D-66123 Saarbrücken , Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany
| | - Sarah S Henrikus
- Chemical Biology of Carbohydrates , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research , D-66123 Saarbrücken , Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany.,Department of Pharmacy , Saarland University , D-66123 Saarbrücken , Germany
| | - Shelby Newsad
- Chemical Biology of Carbohydrates , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research , D-66123 Saarbrücken , Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany
| | - Tatjana Arnold
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany.,Chemical Biology , Helmholtz Centre for Infection Research , D-38124 Braunschweig , Germany
| | - Thomas Ryckmans
- Roche Pharmaceutical Research and Early Development , Roche Innovation Center Basel , CH-4070 Basel , Switzerland
| | - Mark Brönstrup
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany.,Chemical Biology , Helmholtz Centre for Infection Research , D-38124 Braunschweig , Germany
| | - Anne Imberty
- Univ. Grenoble Alpes , CNRS, CERMAV , F-38000 Grenoble , France
| | | | - Rolf W Hartmann
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany.,Department of Pharmacy , Saarland University , D-66123 Saarbrücken , Germany.,Drug Design and Development , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research , D-66123 Saarbrücken , Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research , D-66123 Saarbrücken , Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover, D-38124 Braunschweig , Germany.,Department of Pharmacy , Saarland University , D-66123 Saarbrücken , Germany
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9
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Geissner A, Reinhardt A, Rademacher C, Johannssen T, Monteiro J, Lepenies B, Thépaut M, Fieschi F, Mrázková J, Wimmerova M, Schuhmacher F, Götze S, Grünstein D, Guo X, Hahm HS, Kandasamy J, Leonori D, Martin CE, Parameswarappa SG, Pasari S, Schlegel MK, Tanaka H, Xiao G, Yang Y, Pereira CL, Anish C, Seeberger PH. Microbe-focused glycan array screening platform. Proc Natl Acad Sci U S A 2019; 116:1958-1967. [PMID: 30670663 PMCID: PMC6369816 DOI: 10.1073/pnas.1800853116] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Interactions between glycans and glycan binding proteins are essential for numerous processes in all kingdoms of life. Glycan microarrays are an excellent tool to examine protein-glycan interactions. Here, we present a microbe-focused glycan microarray platform based on oligosaccharides obtained by chemical synthesis. Glycans were generated by combining different carbohydrate synthesis approaches including automated glycan assembly, solution-phase synthesis, and chemoenzymatic methods. The current library of more than 300 glycans is as diverse as the mammalian glycan array from the Consortium for Functional Glycomics and, due to its microbial focus, highly complementary. This glycan platform is essential for the characterization of various classes of glycan binding proteins. Applications of this glycan array platform are highlighted by the characterization of innate immune receptors and bacterial virulence factors as well as the analysis of human humoral immunity to pathogenic glycans.
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Affiliation(s)
- Andreas Geissner
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Anika Reinhardt
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Christoph Rademacher
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Timo Johannssen
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - João Monteiro
- Immunology Unit and Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Bernd Lepenies
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
- Immunology Unit and Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Michel Thépaut
- Université Grenoble Alpes, Institut de Biologie Structurale, F-38044 Grenoble, France
- CNRS, Institut de Biologie Structurale, F-38044 Grenoble, France
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut de Biologie Structurale, F-38044 Grenoble, France
| | - Franck Fieschi
- Université Grenoble Alpes, Institut de Biologie Structurale, F-38044 Grenoble, France
- CNRS, Institut de Biologie Structurale, F-38044 Grenoble, France
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut de Biologie Structurale, F-38044 Grenoble, France
| | - Jana Mrázková
- Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - Michaela Wimmerova
- Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - Frank Schuhmacher
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Sebastian Götze
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Dan Grünstein
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Xiaoqiang Guo
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Heung Sik Hahm
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Jeyakumar Kandasamy
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Daniele Leonori
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Christopher E Martin
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | | | - Sandip Pasari
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Mark K Schlegel
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Hidenori Tanaka
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Guozhi Xiao
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - You Yang
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Claney L Pereira
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Chakkumkal Anish
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany;
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
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10
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Dingjan T, Gillon É, Imberty A, Pérez S, Titz A, Ramsland PA, Yuriev E. Virtual Screening Against Carbohydrate-Binding Proteins: Evaluation and Application to Bacterial Burkholderia ambifaria Lectin. J Chem Inf Model 2018; 58:1976-1989. [DOI: 10.1021/acs.jcim.8b00185] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tamir Dingjan
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Émilie Gillon
- University Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
| | - Anne Imberty
- University Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
| | - Serge Pérez
- University Grenoble Alpes, CNRS, DPM, 38000 Grenoble, France
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
- Department of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany
| | - Paul A. Ramsland
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia
- Department of Surgery Austin Health, University of Melbourne, Heidelberg, Victoria 3084, Australia
- Department of Immunology, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria 3004, Australia
- Burnet Institute, Melbourne, Victoria 3004, Australia
| | - Elizabeth Yuriev
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
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11
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Sommer R, Makshakova ON, Wohlschlager T, Hutin S, Marsh M, Titz A, Künzler M, Varrot A. Crystal Structures of Fungal Tectonin in Complex with O-Methylated Glycans Suggest Key Role in Innate Immune Defense. Structure 2018; 26:391-402.e4. [DOI: 10.1016/j.str.2018.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/24/2017] [Accepted: 01/05/2018] [Indexed: 12/18/2022]
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12
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Joachim I, Rikker S, Hauck D, Ponader D, Boden S, Sommer R, Hartmann L, Titz A. Development and optimization of a competitive binding assay for the galactophilic low affinity lectin LecA from Pseudomonas aeruginosa. Org Biomol Chem 2018; 14:7933-48. [PMID: 27488655 DOI: 10.1039/c6ob01313a] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Infections with the Gram-negative bacterium Pseudomonas aeruginosa result in a high mortality among immunocompromised patients and those with cystic fibrosis. The pathogen can switch from planktonic life to biofilms, and thereby shields itself against antibiotic treatment and host immune defense to establish chronic infections. The bacterial protein LecA, a C-type lectin, is a virulence factor and an integral component for biofilm formation. Inhibition of LecA with its carbohydrate ligands results in reduced biofilm mass, a potential Achilles heel for treatment. Here, we report the development and optimization of a fluorescence polarization-based competitive binding assay with LecA for application in screening of potential inhibitors. As a consequence of the low affinity of d-galactose for LecA, the fluorescent ligand was optimized to reduce protein consumption in the assay. The assay was validated using a set of known inhibitors of LecA and IC50 values in good agreement with the known Kd values were obtained. Finally, we employed the optimized assay to screen sets of synthetic thio-galactosides and natural blood group antigens and report their structure-activity relationship. In addition, we evaluated a multivalent fluorescent assay probe for LecA and report its applicability in an inhibition assay.
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Affiliation(s)
- Ines Joachim
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany. and Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover, Braunschweig, Germany and Department of Chemistry and Graduate School Chemical Biology, University of Konstanz, D-78457 Konstanz, Germany
| | - Sebastian Rikker
- Department of Chemistry and Graduate School Chemical Biology, University of Konstanz, D-78457 Konstanz, Germany
| | - Dirk Hauck
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany. and Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover, Braunschweig, Germany
| | - Daniela Ponader
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Research Campus Golm, 14424 Potsdam, Germany
| | - Sophia Boden
- Heinrich-Heine-University Duesseldorf, Institute of Organic Chemistry and Macromolecular Chemistry, D-40225 Düsseldorf, Germany
| | - Roman Sommer
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany. and Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover, Braunschweig, Germany
| | - Laura Hartmann
- Heinrich-Heine-University Duesseldorf, Institute of Organic Chemistry and Macromolecular Chemistry, D-40225 Düsseldorf, Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany. and Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover, Braunschweig, Germany and Department of Chemistry and Graduate School Chemical Biology, University of Konstanz, D-78457 Konstanz, Germany
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13
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Sommer R, Wagner S, Rox K, Varrot A, Hauck D, Wamhoff EC, Schreiber J, Ryckmans T, Brunner T, Rademacher C, Hartmann RW, Brönstrup M, Imberty A, Titz A. Glycomimetic, Orally Bioavailable LecB Inhibitors Block Biofilm Formation of Pseudomonas aeruginosa. J Am Chem Soc 2018; 140:2537-2545. [PMID: 29272578 DOI: 10.1021/jacs.7b11133] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The opportunistic Gram-negative bacterium Pseudomonas aeruginosa is a leading pathogen for infections of immuno-compromised patients and those suffering from cystic fibrosis. Its ability to switch from planktonic life to aggregates, forming the so-called biofilms, is a front-line mechanism of antimicrobial resistance. The bacterial carbohydrate-binding protein LecB is an integral component and necessary for biofilm formation. Here, we report a new class of drug-like low molecular weight inhibitors of the lectin LecB with nanomolar affinities and excellent receptor binding kinetics and thermodynamics. This class of glycomimetic inhibitors efficiently blocked biofilm formation of P. aeruginosa in vitro while the natural monovalent carbohydrate ligands failed. Furthermore, excellent selectivity and pharmacokinetic properties were achieved. Notably, two compounds showed good oral bioavailability, and high compound concentrations in plasma and urine were achieved in vivo.
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Affiliation(s)
- Roman Sommer
- Chemical Biology of Carbohydrates and ‡Drug Design and Development, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) , D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany
| | - Stefanie Wagner
- Chemical Biology of Carbohydrates and ‡Drug Design and Development, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) , D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany
| | - Katharina Rox
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany
| | - Annabelle Varrot
- Univ. Grenoble Alpes , CNRS, Centre de Recherche sur les Macromolécules Végétales (CERMAV), 38000 Grenoble, France
| | - Dirk Hauck
- Chemical Biology of Carbohydrates and ‡Drug Design and Development, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) , D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany
| | - Eike-Christian Wamhoff
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces , D-14424 Potsdam, Germany.,Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin , D-14195 Berlin, Germany
| | - Janine Schreiber
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany
| | - Thomas Ryckmans
- Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel , CH-4070 Basel, Switzerland
| | - Thomas Brunner
- Biochemical Pharmacology, Department of Biology, University of Konstanz , D-78457 Konstanz, Germany
| | - Christoph Rademacher
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces , D-14424 Potsdam, Germany.,Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin , D-14195 Berlin, Germany
| | - Rolf W Hartmann
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany.,Department of Pharmacy, Saarland University , D-66123 Saarbrücken, Germany
| | - Mark Brönstrup
- Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany
| | - Anne Imberty
- Univ. Grenoble Alpes , CNRS, Centre de Recherche sur les Macromolécules Végétales (CERMAV), 38000 Grenoble, France
| | - Alexander Titz
- Chemical Biology of Carbohydrates and ‡Drug Design and Development, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) , D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) , Standort Hannover-Braunschweig, Germany.,Department of Pharmacy, Saarland University , D-66123 Saarbrücken, Germany
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14
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Wagner S, Hauck D, Hoffmann M, Sommer R, Joachim I, Müller R, Imberty A, Varrot A, Titz A. Covalent Lectin Inhibition and Application in Bacterial Biofilm Imaging. Angew Chem Int Ed Engl 2017; 56:16559-16564. [PMID: 28960731 PMCID: PMC5767747 DOI: 10.1002/anie.201709368] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 12/12/2022]
Abstract
Biofilm formation by pathogenic bacteria is a hallmark of chronic infections. In many cases, lectins play key roles in establishing biofilms. The pathogen Pseudomonas aeruginosa often exhibiting various drug resistances employs its lectins LecA and LecB as virulence factors and biofilm building blocks. Therefore, inhibition of the function of these proteins is thought to have potential in developing "pathoblockers" preventing biofilm formation and virulence. A covalent lectin inhibitor specific to a carbohydrate binding site is described for the first time. Its application in the LecA-specific in vitro imaging of biofilms formed by P. aeruginosa is also reported.
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Affiliation(s)
- Stefanie Wagner
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Dirk Hauck
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Michael Hoffmann
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
- Microbial Natural SubstancesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
| | - Roman Sommer
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Ines Joachim
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Rolf Müller
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
- Microbial Natural SubstancesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
| | - Anne Imberty
- Université Grenoble AlpesCNRS, CERMAV38000GrenobleFrance
| | | | - Alexander Titz
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
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15
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Wagner S, Hauck D, Hoffmann M, Sommer R, Joachim I, Müller R, Imberty A, Varrot A, Titz A. Covalent Lectin Inhibition and Application in Bacterial Biofilm Imaging. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709368] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Stefanie Wagner
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Dirk Hauck
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Michael Hoffmann
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
- Microbial Natural Substances; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
| | - Roman Sommer
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Ines Joachim
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Rolf Müller
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
- Microbial Natural Substances; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
| | - Anne Imberty
- Université Grenoble Alpes; CNRS, CERMAV; 38000 Grenoble France
| | | | - Alexander Titz
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
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16
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Beshr G, Sikandar A, Jemiller EM, Klymiuk N, Hauck D, Wagner S, Wolf E, Koehnke J, Titz A. Photorhabdus luminescens lectin A (PllA): A new probe for detecting α-galactoside-terminating glycoconjugates. J Biol Chem 2017; 292:19935-19951. [PMID: 28972138 DOI: 10.1074/jbc.m117.812792] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/25/2017] [Indexed: 11/06/2022] Open
Abstract
Lectins play important roles in infections by pathogenic bacteria, for example, in host colonization, persistence, and biofilm formation. The Gram-negative entomopathogenic bacterium Photorhabdus luminescens symbiotically lives in insect-infecting Heterorhabditis nematodes and kills the insect host upon invasion by the nematode. The P. luminescens genome harbors the gene plu2096, coding for a novel lectin that we named PllA. We analyzed the binding properties of purified PllA with a glycan array and a binding assay in solution. Both assays revealed a strict specificity of PllA for α-galactoside-terminating glycoconjugates. The crystal structures of apo PllA and complexes with three different ligands revealed the molecular basis for the strict specificity of this lectin. Furthermore, we found that a 90° twist in subunit orientation leads to a peculiar quaternary structure compared with that of its ortholog LecA from Pseudomonas aeruginosa We also investigated the utility of PllA as a probe for detecting α-galactosides. The α-Gal epitope is present on wild-type pig cells and is the main reason for hyperacute organ rejection in pig to primate xenotransplantation. We noted that PllA specifically recognizes this epitope on the glycan array and demonstrated that PllA can be used as a fluorescent probe to detect this epitope on primary porcine cells in vitro In summary, our biochemical and structural analyses of the P. luminescens lectin PllA have disclosed the structural basis for PllA's high specificity for α-galactoside-containing ligands, and we show that PllA can be used to visualize the α-Gal epitope on porcine tissues.
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Affiliation(s)
- Ghamdan Beshr
- From the Divisions of Chemical Biology of Carbohydrates and.,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig.,the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and
| | - Asfandyar Sikandar
- the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and.,Structural Biology of Biosynthetic Enzymes, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken
| | - Eva-Maria Jemiller
- the Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Nikolai Klymiuk
- the Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Dirk Hauck
- From the Divisions of Chemical Biology of Carbohydrates and.,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig
| | - Stefanie Wagner
- From the Divisions of Chemical Biology of Carbohydrates and.,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig
| | - Eckhard Wolf
- the Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Jesko Koehnke
- the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and .,Structural Biology of Biosynthetic Enzymes, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken
| | - Alexander Titz
- From the Divisions of Chemical Biology of Carbohydrates and .,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig.,the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and
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17
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Hu Y, Beshr G, Garvey CJ, Tabor RF, Titz A, Wilkinson BL. Photoswitchable Janus glycodendrimer micelles as multivalent inhibitors of LecA and LecB from Pseudomonas aeruginosa. Colloids Surf B Biointerfaces 2017; 159:605-612. [PMID: 28858663 DOI: 10.1016/j.colsurfb.2017.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/31/2017] [Accepted: 08/10/2017] [Indexed: 12/18/2022]
Abstract
The first example of the self-assembly and lectin binding properties of photoswitchable glycodendrimer micelles is reported. Light-addressable micelles were assembled from a library of 12 amphiphilic Janus glycodendrimers composed of variable carbohydrate head groups and hydrophobic tail groups linked to an azobenzene core. Spontaneous association in water gave cylindrical micelles with uniform size distribution as determined by dynamic light scattering (DLS) and small angle neutron scattering (SANS). Trans-cis photoisomerization of the azobenzene dendrimer core was used to probe the self-assembly behaviour and lectin binding properties of cylindrical micelles, revealing moderate-to-potent inhibition of lectins LecA and LecB from Pseudomonas aeruginosa.
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Affiliation(s)
- Yingxue Hu
- School of Chemistry, Monash University, Victoria 3800, Australia
| | - Ghamdan Beshr
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung, Standort Hannover, Braunschweig, Germany
| | - Christopher J Garvey
- Australian Centre for Neutron scattering, ANSTO, Lucas Heights, New South Wales 2234, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Victoria 3800, Australia
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung, Standort Hannover, Braunschweig, Germany
| | - Brendan L Wilkinson
- School of Science and Technology, the University of New England, New South Wales 2351, Australia.
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18
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Sommer R, Hauck D, Varrot A, Imberty A, Künzler M, Titz A. O-Alkylated heavy atom carbohydrate probes for protein X-ray crystallography: Studies towards the synthesis of methyl 2- O-methyl-L-selenofucopyranoside. Beilstein J Org Chem 2016; 12:2828-2833. [PMID: 28144356 PMCID: PMC5238581 DOI: 10.3762/bjoc.12.282] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/09/2016] [Indexed: 11/23/2022] Open
Abstract
Selenoglycosides are used as reactive glycosyl donors in the syntheses of oligosaccharides. In addition, such heavy atom analogs of natural glycosides are useful tools for structure determination of their lectin receptors using X-ray crystallography. Some lectins, e.g., members of the tectonin family, only bind to carbohydrate epitopes with O-alkylated ring hydroxy groups. In this context, we report the first synthesis of an O-methylated selenoglycoside, specifically methyl 2-O-methyl-L-selenofucopyranoside, a ligand of the lectin tectonin-2 from the mushroom Laccaria bicolor. The synthetic route required a strategic revision and further optimization due to the intrinsic lability of alkyl selenoglycosides, in particular for the labile fucose. Here, we describe a successful synthetic access to methyl 2-O-methyl-L-selenofucopyranoside in 9 linear steps and 26% overall yield starting from allyl L-fucopyranoside.
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Affiliation(s)
- Roman Sommer
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Dirk Hauck
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Annabelle Varrot
- Centre de Recherche sur les Macromolécules Végétales (CERMAV-UPR5301), CNRS and Université Grenoble Alpes, BP53, F-38041 Grenoble cedex 9, France
| | - Anne Imberty
- Centre de Recherche sur les Macromolécules Végétales (CERMAV-UPR5301), CNRS and Université Grenoble Alpes, BP53, F-38041 Grenoble cedex 9, France
| | - Markus Künzler
- Institute of Microbiology, Swiss Federal Institute of Technology (ETH) Zürich, 8093 Zürich, Switzerland
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
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Pifferi C, Goyard D, Gillon E, Imberty A, Renaudet O. Synthesis of Mannosylated Glycodendrimers and Evaluation against BC2L-A Lectin from Burkholderia Cenocepacia. Chempluschem 2016; 82:390-398. [PMID: 31962032 DOI: 10.1002/cplu.201600569] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Indexed: 01/29/2023]
Abstract
Chronic colonization of lungs by opportunist bacteria is the major cause of mortality for cystic fibrosis patients. Among these pathogens, Burkholderia cenocepacia is responsible for cepacia syndrome, a deadly exacerbation of infection that is the main cause of poor outcomes of lung transplantation. This bacterium contains three soluble carbohydrate-binding proteins, including the B. cenocepacia lectin A (BC2L-A), which is proposed to bind to oligomannose-type N-glycan structures to adhere to host tissues. In this work, several mannosylated glycoclusters and glycodendrimers with valencies ranging from four to 24 were prepared and their interactions with BC2L-A were thermodynamically characterized by isothermal titration calorimetry. The results show that a 24-valent structure binds to BC2L-A at nanomolar concentration, which makes this compound the highest affinity monodisperse ligand for this lectin.
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Affiliation(s)
- Carlo Pifferi
- Université Grenoble Alpes, CNRS, DCM UMR 5250, 38000, Grenoble, France
| | - David Goyard
- Université Grenoble Alpes, CNRS, DCM UMR 5250, 38000, Grenoble, France
| | - Emilie Gillon
- CERMAV, UPR5301, CNRS, and Université Grenoble Alpes, 601 rue de la Chimie, BP 53, 38041, Grenoble, France
| | - Anne Imberty
- CERMAV, UPR5301, CNRS, and Université Grenoble Alpes, 601 rue de la Chimie, BP 53, 38041, Grenoble, France
| | - Olivier Renaudet
- Université Grenoble Alpes, CNRS, DCM UMR 5250, 38000, Grenoble, France.,Institut Universitaire de France, 103 boulevard Saint-Michel, 75005, Paris, France
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Csávás M, Malinovská L, Perret F, Gyurkó M, Illyés ZT, Wimmerová M, Borbás A. Tri- and tetravalent mannoclusters cross-link and aggregate BC2L-A lectin from Burkholderia cenocepacia. Carbohydr Res 2016; 437:1-8. [PMID: 27871013 DOI: 10.1016/j.carres.2016.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/24/2016] [Accepted: 11/10/2016] [Indexed: 01/21/2023]
Abstract
The opportunistic Gram-negative bacterium Burkholderia cenocepacia causes lethal infections in cystic fibrosis patients. Multivalent mannoside derivatives were prepared as potential inhibitors of lectin BC2L-A, one of the virulence factors deployed by B. cenocepacia in the infection process. An (α1→2)-thio-linked mannobioside mimic bearing an azide functionalized aglycon was conjugated to different multivalent scaffolds such as propargylated calix[4]arenes, methyl gallate and pentaerythritol by azide-alkyne 1,3-dipolar cycloaddition. The interaction between the glycoclusters and the mannose binding BC2L-A lectin from B. cenocepacia was examined by isothermal microcalorimetry, surface plasmon resonance, inhibition of yeast agglutination and analytical ultracentrifugation.
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Affiliation(s)
- Magdolna Csávás
- Department of Pharmaceutical Chemistry, University of Debrecen, POB 78, H-4010 Debrecen, Hungary
| | - Lenka Malinovská
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czechia
| | - Florent Perret
- ICBMS-Equipe CSAp, Université Lyon 1, 69622 Villeurbanne, France
| | - Milán Gyurkó
- Department of Pharmaceutical Chemistry, University of Debrecen, POB 78, H-4010 Debrecen, Hungary
| | - Zita Tünde Illyés
- Department of Organic Chemistry, University of Debrecen, POB 20, H-410 Debrecen, Hungary
| | - Michaela Wimmerová
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czechia; National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czechia.
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, University of Debrecen, POB 78, H-4010 Debrecen, Hungary.
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