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El Riz A, Tchoumi Neree A, Mousavifar L, Roy R, Chorfi Y, Mateescu MA. Metallo-Glycodendrimeric Materials against Enterotoxigenic Escherichia coli. Microorganisms 2024; 12:966. [PMID: 38792795 PMCID: PMC11124148 DOI: 10.3390/microorganisms12050966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Conjugation of carbohydrates to nanomaterials has been extensively studied and recognized as an alternative in the biomedical field. Dendrimers synthesized with mannose at the end group and with entrapped zero-valent copper/silver could be a potential candidate against bacterial proliferation. This study is aimed at investigating the bactericidal activity of metal-glycodendrimers. The Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction was used to synthesize a new mannosylated dendrimer containing 12 mannopyranoside residues in the periphery. The enterotoxigenic Escherichia coli fimbriae 4 (ETEC:F4) viability, measured at 600 nm, showed the half-inhibitory concentration (IC50) of metal-free glycodendrimers (D), copper-loaded glycodendrimers (D:Cu) and silver-loaded glycodendrimers (D:Ag) closed to 4.5 × 101, 3.5 × 101 and to 1.0 × 10-2 µg/mL, respectively, and minimum inhibitory concentration (MIC) of D, D:Cu and D:Ag of 2.0, 1.5 and 1.0 × 10-4 µg/mL, respectively. The release of bacteria contents onto broth and the inhibition of ETEC:F4 biofilm formation increased with the number of metallo-glycodendrimer materials, with a special interest in silver-containing nanomaterial, which had the highest activity, suggesting that glycodendrimer-based materials interfered with bacteria-bacteria or bacteria-polystyrene interactions, with bacteria metabolism and can disrupt bacteria cell walls. Our findings identify metal-mannose-dendrimers as potent bactericidal agents and emphasize the effect of entrapped zero-valent metal against ETEC:F4.
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Affiliation(s)
- Aly El Riz
- Department of Chemistry, Université du Québec à Montréal, Succ. Centre-Ville, P.O. Box 8888, Montréal, QC H3C 3P8, Canada; (A.E.R.); (L.M.); (R.R.)
| | - Armelle Tchoumi Neree
- Department of Veterinary Biomedicine Sciences, Faculty of Veterinary Medicine, Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada; (A.T.N.); (Y.C.)
- Centre de recherche en infectiologie porcine et avicole (CRIPA), Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada
| | - Leila Mousavifar
- Department of Chemistry, Université du Québec à Montréal, Succ. Centre-Ville, P.O. Box 8888, Montréal, QC H3C 3P8, Canada; (A.E.R.); (L.M.); (R.R.)
| | - René Roy
- Department of Chemistry, Université du Québec à Montréal, Succ. Centre-Ville, P.O. Box 8888, Montréal, QC H3C 3P8, Canada; (A.E.R.); (L.M.); (R.R.)
| | - Younes Chorfi
- Department of Veterinary Biomedicine Sciences, Faculty of Veterinary Medicine, Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada; (A.T.N.); (Y.C.)
- Centre de recherche en infectiologie porcine et avicole (CRIPA), Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada
| | - Mircea Alexandru Mateescu
- Department of Chemistry, Université du Québec à Montréal, Succ. Centre-Ville, P.O. Box 8888, Montréal, QC H3C 3P8, Canada; (A.E.R.); (L.M.); (R.R.)
- Centre de recherche en infectiologie porcine et avicole (CRIPA), Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada
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Mo B, Scharf B, Gutheil C, Letzel MC, Hensel A. Tamm-Horsfall protein in humane urine: sex-dependent differences in the excretion and N-glycosylation pattern. Sci Rep 2023; 13:17815. [PMID: 37857738 PMCID: PMC10587112 DOI: 10.1038/s41598-023-44650-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023] Open
Abstract
Tamm-Horsfall protein (THP) is a highly N-glycosylated protein from epithelial cells of the ascending limb of Henle loop. It is secreted into the urine as part of the innate immune response against uropathogenic pathogens. As women are more likely to suffer from urinary tract infections, biomedical studies were conducted to investigate sex-differences in THP excretion, as well as differences in the THP N-glycosylation pattern. A total of 238 volunteers (92 men, 146 women, 69 with hormonal contraceptives) participated in this study, providing urine samples. Women showed a clear tendency to have higher THP concentration and excretion rates than men (p < 0.16). Regular intake of hormonal contraceptives had no significant influence on urinary THP concentration compared to no regular intake. The individual N-glycosylation pattern of THP in urine samples from randomly selected individuals (10 female, 10 male) was investigated after enzymatic release and MS analysis of the oligosaccharides. Female subjects tended to have an increased proportion of oligomannose type N-glycans and non-fucosylated glycans, whereas men had an increased proportion of fucosylated complex-type glycans. The higher level of oligomannose-type glycans in THP from women might be explained by a self-defence mechanism to overcome the higher infections pressure by the female anatomical properties.
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Affiliation(s)
- Boris Mo
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Münster, Germany
| | - Birte Scharf
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Münster, Germany
| | - Christian Gutheil
- Organisch-Chemisches Institut, University of Münster, Münster, Germany
| | - Matthias C Letzel
- Organisch-Chemisches Institut, University of Münster, Münster, Germany
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Münster, Germany.
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3
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Mo B, Sendker J, Herrmann F, Nowak S, Hensel A. Aqueous extract from Equisetum arvense stimulates the secretion of Tamm-Horsfall protein in human urine after oral intake. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 104:154302. [PMID: 35809378 DOI: 10.1016/j.phymed.2022.154302] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/09/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Within European traditional phytotherapy, extracts from different herbal plants are used for prevention and therapy of uncomplicated urinary tract infections and for flushing out of kidney grits. Besides increased urine flow by slight diuretic effects, also stimulation of Tamm-Horsfall protein (syn. THP, uromodulin) in the distal part of the kidney could explain reduced kidney gravel and anti-virulent activity against uropathogenic E. coli. PURPOSES Evaluation of THP-inducing activity of extracts from Equisetum arvense, Levisticum officinalis, Ilex paraguariensis, Juniperus communis, Urtica dioica, and Taraxacum officinale by quantification of THP in urine samples after oral application to humans. STUDY DESIGN 7 days p.o. application of the test intervention to healthy volunteers (n = 10 per intervention group) and analysis of urine samples at day 1 (untreated control values), and days 3, 6 and 8 on THP content by validated ELISA. Antiadhesive activity of urine samples was monitored by flow cytometry using UPEC strain NU14 against human T24 bladder cells. RESULTS An aqueous extract from E. arvense, fully characterized by a specific LC-MS method, induced THP concentration in urine samples significantly during a 7-day p.o. application up to 300%, related to the untreated controls. Ex vivo investigation of the individual and pooled urine samples with elevated THP concentrations showed good correlation to antiadhesive effects against UPEC NU14 to T24 cells. Urine samples of the Equisetum treated volunteers had no effect on the proliferation and on biofilm formation of UPEC NU14. Silica excretion in the urine samples had no correlation to the respective THP levels. Monitoring of electrolyte content in the urine samples indicat ed diuretic effects of the intervention with Equisetum extract. Detailed phytochemical analysis of the Equisetum extract by LC-MS and LC-UV revealed an analytical protocol, which identified > 80 compounds from the extract by MS evaluations and 18 compounds by UV detection. This protocol will provide a valuable tool for future quality control of Equisetum extract. CONCLUSION Aqueous extract from E. arvense significantly stimulates THP secretion in urine samples after 7 days of oral intake and inhibits the interplay between UPEC and bladder host cells. This could explain the therapeutic use of this herbal material for urinary tract infections and kidney gravel. Detailed phytochemical analysis of the Equisetum extract by LC-MS and LC-UV revealed an analytical protocol, which identified > 82% of all eluted compounds. This protocol will provide a valuable tool for future quality control of Equisetum extract.
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Affiliation(s)
- Boris Mo
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, Münster D-48149, Germany
| | - Jandirk Sendker
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, Münster D-48149, Germany
| | - Fabian Herrmann
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, Münster D-48149, Germany
| | - Sascha Nowak
- MEET - Münster Electrochemical Energy Technology, University of Münster, Corrensstraße 48, Münster D-48149, Germany
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, Münster D-48149, Germany.
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4
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Cobo I, Matheu MI, Castillón S, Davis BG, Boutureira O. Probing Site-Selective Conjugation Chemistries for the Construction of Homogeneous Synthetic Glycodendriproteins. Chembiochem 2022; 23:e202200020. [PMID: 35322922 PMCID: PMC9322419 DOI: 10.1002/cbic.202200020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/14/2022] [Indexed: 11/22/2022]
Abstract
Methods that site‐selectively attach multivalent carbohydrate moieties to proteins can be used to generate homogeneous glycodendriproteins as synthetic functional mimics of glycoproteins. Here, we study aspects of the scope and limitations of some common bioconjugation techniques that can give access to well‐defined glycodendriproteins. A diverse reactive platform was designed via use of thiol‐Michael‐type additions, thiol‐ene reactions, and Cu(I)‐mediated azide‐alkyne cycloadditions from recombinant proteins containing the non‐canonical amino acids dehydroalanine, homoallylglycine, homopropargylglycine, and azidohomoalanine.
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Affiliation(s)
- Isidro Cobo
- Universitat Rovira i Virgili, departament de quimica analitica i quimica organica, SPAIN
| | - M Isabel Matheu
- Universitat Rovira i Virgili, departament de quimica analitica i quimica organica, SPAIN
| | - Sergio Castillón
- Universitat Rovira i Virgili, departament de quimica analitica i quimica organica, SPAIN
| | | | - Omar Boutureira
- Universitat Rovira i Virgili, Departament de Quimica Analitica i Qu�mica Org�nica, Departament de Qu�mica Anal, C/ Marcel.li Domingo 1, 43007, Tarragona, SPAIN
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5
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Schönemann W, Cramer J, Mühlethaler T, Fiege B, Silbermann M, Rabbani S, Dätwyler P, Zihlmann P, Jakob RP, Sager CP, Smieško M, Schwardt O, Maier T, Ernst B. Improvement of Aglycone π-Stacking Yields Nanomolar to Sub-nanomolar FimH Antagonists. ChemMedChem 2019; 14:749-757. [PMID: 30710416 DOI: 10.1002/cmdc.201900051] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Indexed: 11/08/2022]
Abstract
Antimicrobial resistance has become a serious concern for the treatment of urinary tract infections. In this context, an anti-adhesive approach targeting FimH, a bacterial lectin enabling the attachment of E. coli to host cells, has attracted considerable interest. FimH can adopt a low/medium-affinity state in the absence and a high-affinity state in the presence of shear forces. Until recently, mostly the high-affinity state has been investigated, despite the fact that a therapeutic antagonist should bind predominantly to the low-affinity state. In this communication, we demonstrate that fluorination of biphenyl α-d-mannosides leads to compounds with perfect π-π stacking interactions with the tyrosine gate of FimH, yielding low nanomolar to sub-nanomolar KD values for the low- and high-affinity states, respectively. The face-to-face alignment of the perfluorinated biphenyl group of FimH ligands and Tyr48 was confirmed by crystal structures as well as 1 H,15 N-HSQC NMR analysis. Finally, fluorination improves pharmacokinetic parameters predictive for oral availability.
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Affiliation(s)
- Wojciech Schönemann
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Jonathan Cramer
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Tobias Mühlethaler
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Brigitte Fiege
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Marleen Silbermann
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Said Rabbani
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Philipp Dätwyler
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Pascal Zihlmann
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Roman P Jakob
- Department Biozentrum, Focal Area Structural Biology, University of Basel, Klingelbergstrasse 70, 4056, Basel, Switzerland
| | - Christoph P Sager
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Martin Smieško
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Oliver Schwardt
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Timm Maier
- Department Biozentrum, Focal Area Structural Biology, University of Basel, Klingelbergstrasse 70, 4056, Basel, Switzerland
| | - Beat Ernst
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
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6
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Mayer K, Eris D, Schwardt O, Sager CP, Rabbani S, Kleeb S, Ernst B. Urinary Tract Infection: Which Conformation of the Bacterial Lectin FimH Is Therapeutically Relevant? J Med Chem 2017; 60:5646-5662. [PMID: 28471659 DOI: 10.1021/acs.jmedchem.7b00342] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Frequent antibiotic treatment of urinary tract infections has resulted in the emergence of antimicrobial resistance, necessitating alternative treatment options. One such approach centers around FimH antagonists that block the bacterial adhesin FimH, which would otherwise mediate binding of uropathogenic Escherichia coli to the host urothelium to trigger the infection. Although the FimH lectin can adopt three distinct conformations, the evaluation of FimH antagonists has mainly been performed with a truncated construct of FimH locked in one particular conformation. For a successful therapeutic application, however, FimH antagonists should be efficacious against all physiologically relevant conformations. Therefore, FimH constructs with the capacity to adopt various conformations were applied. By examining the binding properties of a series of FimH antagonists in terms of binding affinity and thermodynamics, we demonstrate that depending on the FimH construct, affinities may be overestimated by a constant factor of 2 orders of magnitude. In addition, we report several antagonists with excellent affinities for all FimH conformations.
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Affiliation(s)
- Katharina Mayer
- Institute of Molecular Pharmacy, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Deniz Eris
- Institute of Molecular Pharmacy, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Oliver Schwardt
- Institute of Molecular Pharmacy, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Christoph P Sager
- Institute of Molecular Pharmacy, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Said Rabbani
- Institute of Molecular Pharmacy, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Simon Kleeb
- Institute of Molecular Pharmacy, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Beat Ernst
- Institute of Molecular Pharmacy, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
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7
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Alvarez Dorta D, Chalopin T, Sivignon A, de Ruyck J, Dumych TI, Bilyy RO, Deniaud D, Barnich N, Bouckaert J, Gouin SG. Physiochemical Tuning of Potent Escherichia coli Anti-Adhesives by Microencapsulation and Methylene Homologation. ChemMedChem 2017; 12:986-998. [PMID: 28257558 DOI: 10.1002/cmdc.201700061] [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: 01/30/2017] [Indexed: 11/06/2022]
Abstract
Thiazolylaminomannosides (TazMan) are FimH antagonists with anti-adhesive potential against adherent-invasive Escherichia coli (AIEC) promoting gut inflammation in patients with Crohn's disease. The lead TazMan is highly potent in vitro, but shows limited in vivo efficiency, probably due to low pH stability and water solubility. We recently developed a second generation of stable TazMan, but the anti-adhesive effect was lower than the first. Herein we report a co-crystal structure of the lead TazMan in FimH, revealing that the anomeric NH group and the second thiazole moiety provide a positive hydrogen bonding interaction with a trapped water molecule, and π-stacking with Tyr48 of FimH, respectively. Consequently, we developed NeoTazMan homologated with a methylene group for low-pH and mannosidase stability with a conserved NH group and bearing various heterocyclic aglycones. Microencapsulation of the lead NeoTazMan in γ-cyclodextrin dramatically improved water solubility without disrupting the affinity for FimH or the anti-adhesive effect against AIEC isolated from patients with Crohn's disease.
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Affiliation(s)
- Dimitri Alvarez Dorta
- LUNAM Université, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Thibaut Chalopin
- LUNAM Université, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Adeline Sivignon
- Université Clermont Auvergne, Inserm U1071, M2iSH, USC-INRA 2018, 63000, Clermont-Ferrand, France
| | - Jérôme de Ruyck
- Université Lille, Unité de Glycobiologie Structurale et Fonctionnelle, CNRS UMR8576 UGSF, FRABio FR3688, 59000, Lille, France
| | - Tetiana I Dumych
- Danylo Halytsky Lviv National Medical University, Pekarska Str. 69, 79010, Lviv, Ukraine
| | - Rostyslav O Bilyy
- Danylo Halytsky Lviv National Medical University, Pekarska Str. 69, 79010, Lviv, Ukraine
| | - David Deniaud
- LUNAM Université, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Nicolas Barnich
- Université Clermont Auvergne, Inserm U1071, M2iSH, USC-INRA 2018, 63000, Clermont-Ferrand, France
| | - Julie Bouckaert
- Université Lille, Unité de Glycobiologie Structurale et Fonctionnelle, CNRS UMR8576 UGSF, FRABio FR3688, 59000, Lille, France
| | - Sébastien G Gouin
- LUNAM Université, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
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8
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2- C -Branched mannosides as a novel family of FimH antagonists—Synthesis and biological evaluation. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.pisc.2016.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Eris D, Preston RC, Scharenberg M, Hulliger F, Abgottspon D, Pang L, Jiang X, Schwardt O, Ernst B. The Conformational Variability of FimH: Which Conformation Represents the Therapeutic Target? Chembiochem 2016; 17:1012-20. [PMID: 26991759 DOI: 10.1002/cbic.201600066] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Indexed: 12/21/2022]
Abstract
FimH is a bacterial lectin found at the tips of type 1 pili of uropathogenic Escherichia coli (UPEC). It mediates shear-enhanced adhesion to mannosylated surfaces. Binding of UPEC to urothelial cells initiates the infection cycle leading to urinary tract infections (UTIs). Antiadhesive glycomimetics based on α-d-mannopyranose offer an attractive alternative to the conventional antibiotic treatment because they do not induce a selection pressure and are therefore expected to have a reduced resistance potential. Genetic variation of the fimH gene in clinically isolated UPEC has been associated with distinct mannose binding phenotypes. For this reason, we investigated the mannose binding characteristics of four FimH variants with mannose-based ligands under static and hydrodynamic conditions. The selected FimH variants showed individually different binding behavior under both sets of conditions as a result of the conformational variability of FimH. Clinically relevant FimH variants typically exist in a dynamic conformational equilibrium. Additionally, we evaluated inhibitory potencies of four FimH antagonists representing different structural classes. Inhibitory potencies of three of the tested antagonists were dependent on the binding phenotype and hence on the conformational equilibrium of the FimH variant. However, the squarate derivative was the notable exception and inhibited FimH variants irrespective of their binding phenotype. Information on antagonist affinities towards various FimH variants has remained largely unconsidered despite being essential for successful antiadhesion therapy.
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Affiliation(s)
- Deniz Eris
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Roland C Preston
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Meike Scharenberg
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Fabian Hulliger
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Daniela Abgottspon
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Lijuan Pang
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Xiaohua Jiang
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Oliver Schwardt
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Beat Ernst
- Department of Pharmaceutical Sciences, Institute of Molecular Pharmacy, Pharmacenter, Klingelbergstrasse 50, 4056, Basel, Switzerland.
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10
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Alvarez Dorta D, Sivignon A, Chalopin T, Dumych TI, Roos G, Bilyy RO, Deniaud D, Krammer EM, de Ruyck J, Lensink MF, Bouckaert J, Barnich N, Gouin SG. The Antiadhesive Strategy in Crohn's Disease: Orally Active Mannosides to Decolonize Pathogenic Escherichia coli from the Gut. Chembiochem 2016; 17:936-52. [PMID: 26946458 DOI: 10.1002/cbic.201600018] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Indexed: 11/07/2022]
Abstract
Blocking the adherence of bacteria to cells is an attractive complementary approach to current antibiotic treatments, which are faced with increasing resistance. This strategy has been particularly studied in the context of urinary tract infections (UTIs), in which the adhesion of pathogenic Escherichia coli strains to uroepithelial cells is prevented by blocking the FimH adhesin expressed at the tips of bacteria organelles called fimbriae. Recently, we extended the antiadhesive concept, showing that potent FimH antagonists can block the attachment of adherent-invasive E. coli (AIEC) colonizing the intestinal mucosa of patients with Crohn's disease (CD). In this work, we designed a small library of analogues of heptyl mannoside (HM), a previously identified nanomolar FimH inhibitor, but one that displays poor antiadhesive effects in vivo. The anomeric oxygen atom was replaced by a sulfur or a methylene group to prevent hydrolysis by intestinal glycosidases, and chemical groups were attached at the end of the alkyl tail. Importantly, a lead compound was shown to reduce AIEC levels in the feces and in the colonic and ileal mucosa after oral administration (10 mg kg(-1) ) in a transgenic mouse model of CD. The compound showed a low bioavailability, preferable in this instance, thus suggesting the possibility of setting up an innovative antiadhesive therapy, based on the water-soluble and non-cytotoxic FimH antagonists developed here, for the CD subpopulation in which AIEC plays a key role.
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Affiliation(s)
- Dimitri Alvarez Dorta
- LUNAM Université, CEISAM, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, 2, rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Adeline Sivignon
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, 63000, Clermont-Ferrand, France
| | - Thibaut Chalopin
- LUNAM Université, CEISAM, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, 2, rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Tetiana I Dumych
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Goedele Roos
- Structure and Function of Biological Membranes, Université Libre de Bruxelles, Boulevard du Triomphe, 1050, Brussels, Belgium
| | - Rostyslav O Bilyy
- Danylo Halytsky Lviv National Medical University, Pekarska Str. 69, 79010, Lviv, Ukraine
| | - David Deniaud
- LUNAM Université, CEISAM, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, 2, rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Eva-Maria Krammer
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Jérome de Ruyck
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Marc F Lensink
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Julie Bouckaert
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Nicolas Barnich
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, 63000, Clermont-Ferrand, France
| | - Sébastien G Gouin
- LUNAM Université, CEISAM, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, 2, rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France.
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11
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Kleeb S, Jiang X, Frei P, Sigl A, Bezençon J, Bamberger K, Schwardt O, Ernst B. FimH Antagonists: Phosphate Prodrugs Improve Oral Bioavailability. J Med Chem 2016; 59:3163-82. [PMID: 26959338 DOI: 10.1021/acs.jmedchem.5b01923] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The widespread occurrence of urinary tract infections has resulted in frequent antibiotic treatment, contributing to the emergence of antimicrobial resistance. Alternative approaches are therefore required. In the initial step of colonization, FimH, a lectin located at the tip of bacterial type 1 pili, interacts with mannosylated glycoproteins on the urothelial mucosa. This initial pathogen/host interaction is efficiently antagonized by biaryl α-d-mannopyranosides. However, their poor physicochemical properties, primarily resulting from low aqueous solubility, limit their suitability as oral treatment option. Herein, we report the syntheses and pharmacokinetic evaluation of phosphate prodrugs, which show an improved aqueous solubility of up to 140-fold. In a Caco-2 cell model, supersaturated solutions of the active principle were generated through hydrolysis of the phosphate esters by brush border-associated enzymes, leading to a high concentration gradient across the cell monolayer. As a result, the in vivo application of phosphate prodrugs led to a substantially increased Cmax and prolonged availability of FimH antagonists in urine.
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Affiliation(s)
- Simon Kleeb
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Xiaohua Jiang
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Priska Frei
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Anja Sigl
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Jacqueline Bezençon
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Karen Bamberger
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Oliver Schwardt
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Beat Ernst
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
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12
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Chalopin T, Alvarez Dorta D, Sivignon A, Caudan M, Dumych TI, Bilyy RO, Deniaud D, Barnich N, Bouckaert J, Gouin SG. Second generation of thiazolylmannosides, FimH antagonists for E. coli-induced Crohn's disease. Org Biomol Chem 2016; 14:3913-25. [DOI: 10.1039/c6ob00424e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chemical stability of potentE. colianti-adhesives was improved by substitution of the anomeric nitrogen by short linkers.
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Affiliation(s)
- T. Chalopin
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| | - D. Alvarez Dorta
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| | - A. Sivignon
- Clermont Université
- UMR 1071 Inserm/Université d'Auvergne
- 63000 Clermont-Ferrand
- France
| | - M. Caudan
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| | - T. I. Dumych
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF)
- UMR 8576 du CNRS
- F-59655 Villeneuve d'Ascq Cedex
- France
| | - R. O. Bilyy
- Danylo Halytsky Lviv National Medical University
- Lviv
- Ukraine
| | - D. Deniaud
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| | - N. Barnich
- Clermont Université
- UMR 1071 Inserm/Université d'Auvergne
- 63000 Clermont-Ferrand
- France
| | - J. Bouckaert
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF)
- UMR 8576 du CNRS
- F-59655 Villeneuve d'Ascq Cedex
- France
| | - S. G. Gouin
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
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13
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Unique tetrameric and hexameric mannoside clusters prepared by click chemistry. Carbohydr Res 2015; 417:27-33. [PMID: 26398914 DOI: 10.1016/j.carres.2015.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 07/16/2015] [Accepted: 07/19/2015] [Indexed: 01/05/2023]
Abstract
The synthesis of novel tetrameric and hexameric mannoside clusters bearing 1,2,3-trizole linkages via Cu(I)-catalyzed azide-alkyne cycloaddition reaction ("click chemistry") is described. An attractive feature of these multiarmed mannoside clusters as potential inhibitors of uropathogenic Escherichia coli is the use of an aglycone whose length is designed to fit in the tyrosine gate. The acetylated mannosides were deprotected and the corresponding de-O-acetylated mannosides were found to exhibit good water solubility.
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14
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Wu F, Jin J, Wang L, Sun P, Yuan H, Yang Z, Chen G, Fan QH, Liu D. Functionalization of DNA-dendron supramolecular fibers and application in regulation of Escherichia coli association. ACS APPLIED MATERIALS & INTERFACES 2015; 7:7351-7356. [PMID: 25782730 DOI: 10.1021/acsami.5b00702] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Specific carbohydrate recognition in biology is a dynamic process. Thus, supramolecular multivalent scaffolds with dynamic features have been applied to mimic this process. Herein, we prepared DNA-dendron supramolecular fibers and synthesized carbohydrate-oligonucleotide conjugates (C18-mannose). Via DNA hybridization, the C18-mannose could be guided onto the fiber platform and form multiple mannose-functionalized fibers, which can be utilized to agglutinate E. coli because of high affinity among multivalent mannose ligands and receptors on E. coli. In addition, via chain exchange reaction of DNAs, the E. coli could be dissociated by replacing multivalent mannose ligands with competitive unmodified DNA sequences. The association and dissociation processes of E. coli are confirmed by fluorescent microscope and transmission electron microscope (TEM). These results not only demonstrate the ability of DNA-dendron fibers in reversibly associating E. coli but also illustrate their potential to be an easily modified multivalent supramolecular platform.
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Affiliation(s)
- Fen Wu
- †Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | | | - Liying Wang
- †Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Pengfei Sun
- §The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Huanxiang Yuan
- ∥Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | | | - Guosong Chen
- §The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Qing-Hua Fan
- †Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
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15
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Kleeb S, Pang L, Mayer K, Eris D, Sigl A, Preston RC, Zihlmann P, Sharpe T, Jakob RP, Abgottspon D, Hutter AS, Scharenberg M, Jiang X, Navarra G, Rabbani S, Smiesko M, Lüdin N, Bezençon J, Schwardt O, Maier T, Ernst B. FimH antagonists: bioisosteres to improve the in vitro and in vivo PK/PD profile. J Med Chem 2015; 58:2221-39. [PMID: 25666045 DOI: 10.1021/jm501524q] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Urinary tract infections (UTIs), predominantly caused by uropathogenic Escherichia coli (UPEC), belong to the most prevalent infectious diseases worldwide. The attachment of UPEC to host cells is mediated by FimH, a mannose-binding adhesin at the tip of bacterial type 1 pili. To date, UTIs are mainly treated with antibiotics, leading to the ubiquitous problem of increasing resistance against most of the currently available antimicrobials. Therefore, new treatment strategies are urgently needed. Here, we describe the development of an orally available FimH antagonist. Starting from the carboxylate substituted biphenyl α-d-mannoside 9, affinity and the relevant pharmacokinetic parameters (solubility, permeability, renal excretion) were substantially improved by a bioisosteric approach. With 3'-chloro-4'-(α-d-mannopyranosyloxy)biphenyl-4-carbonitrile (10j) a FimH antagonist with an optimal in vitro PK/PD profile was identified. Orally applied, 10j was effective in a mouse model of UTI by reducing the bacterial load in the bladder by about 1000-fold.
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Affiliation(s)
- Simon Kleeb
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, CH-4056 Basel, Switzerland
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16
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Zhang Q, Wilson P, Anastasaki A, McHale R, Haddleton DM. Synthesis and Aggregation of Double Hydrophilic Diblock Glycopolymers via Aqueous SET-LRP. ACS Macro Lett 2014; 3:491-495. [PMID: 35590789 DOI: 10.1021/mz5001724] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A chemically unprotected mannose-containing acrylate (ManA) monomer was synthesized and polymerized by Cu(0)-mediated radical polymerization in water (SET-LRP). One-pot block copolymerization was achieved upon addition of a solution of N-isopropylacrylamide (NIPAm) or diethylene glycol ethyl ether acrylate (DEGEEA) forming thermoresponsive double hydrophilic diblock glycopolymers which revealed self-assembly properties in aqueous solution forming well-defined, sugar-decorated nanoparticles.
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Affiliation(s)
- Qiang Zhang
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Paul Wilson
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- Monash
Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Australia
| | - Athina Anastasaki
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Ronan McHale
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - David M. Haddleton
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- Monash
Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Australia
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17
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Pera NP, Pieters RJ. Towards bacterial adhesion-based therapeutics and detection methods. MEDCHEMCOMM 2014. [DOI: 10.1039/c3md00346a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bacterial adhesion is an important first step towards bacterial infection and plays a role in colonization, invasion and biofilm formation.
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Affiliation(s)
- Núria Parera Pera
- Department of Medicinal Chemistry and Chemical Biology
- Utrecht Institute for Pharmaceutical Sciences
- Utrecht University
- 3508 TB Utrecht
- The Netherlands
| | - Roland J. Pieters
- Department of Medicinal Chemistry and Chemical Biology
- Utrecht Institute for Pharmaceutical Sciences
- Utrecht University
- 3508 TB Utrecht
- The Netherlands
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18
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Mathison BD, Kimble LL, Kaspar KL, Khoo C, Chew BP. Development and validation of a sensitive, high-throughput bioassay for the adhesion of radiolabeled E. coli to uroepithelial cells in vitro. JOURNAL OF NATURAL PRODUCTS 2013; 76:1605-1611. [PMID: 23964569 DOI: 10.1021/np400264b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Vaccinium macrocarpon (cranberry) products have been used to prevent uropathogenic Escherichia (E.) coli adherence to uroepithelial cells (UEC) and may help reduce risk of urinary tract infection. Reported herein are the development and validation of an assay to assess antiadhesion activity of V. macrocarpon extracts and human urine. P-fimbriated E. coli (CFT073) was labeled with ³H-uridine, then co-incubated with HTB-4 UEC at a 400:1 ratio. V. macrocarpon extracts (0-17 mg proanthocyanidins/mL) were added to ³H-labeled E. coli before co-incubating with UEC. The assay yielded a sensitive inhibition curve: the lower limit of detection and half-maximal inhibitory concentration were 0.43 and 1.59 mg proanthocyanidins/mL for V. macrocarpon extract CEP 55; intra- and interassay coefficients of variance were <10% and <15%, respectively. V. macrocarpon extract CEP 3283 showed identical adhesion inhibition. Serial dilutions of urine from human participants who consumed V. macrocarpon beverages showed a linear decrease in antiadhesion activity. Antiadhesion assays conducted with urine from a human intervention study also showed good agreement with results obtained using the hemagglutination assay. Therefore, a sensitive, high-throughput, biologically relevant antiadhesion assay using ³H-E. coli co-incubated with UEC is reported, which can be used for studying the action of V. macrocarpon bioactives.
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Affiliation(s)
- Bridget D Mathison
- School of Food Science, Washington State University , Pullman, Washington 99164-6376, United States
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19
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Bernardi A, Jiménez-Barbero J, Casnati A, De Castro C, Darbre T, Fieschi F, Finne J, Funken H, Jaeger KE, Lahmann M, Lindhorst TK, Marradi M, Messner P, Molinaro A, Murphy PV, Nativi C, Oscarson S, Penadés S, Peri F, Pieters RJ, Renaudet O, Reymond JL, Richichi B, Rojo J, Sansone F, Schäffer C, Turnbull WB, Velasco-Torrijos T, Vidal S, Vincent S, Wennekes T, Zuilhof H, Imberty A. Multivalent glycoconjugates as anti-pathogenic agents. Chem Soc Rev 2013; 42:4709-27. [PMID: 23254759 PMCID: PMC4399576 DOI: 10.1039/c2cs35408j] [Citation(s) in RCA: 421] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multivalency plays a major role in biological processes and particularly in the relationship between pathogenic microorganisms and their host that involves protein-glycan recognition. These interactions occur during the first steps of infection, for specific recognition between host and bacteria, but also at different stages of the immune response. The search for high-affinity ligands for studying such interactions involves the combination of carbohydrate head groups with different scaffolds and linkers generating multivalent glycocompounds with controlled spatial and topology parameters. By interfering with pathogen adhesion, such glycocompounds including glycopolymers, glycoclusters, glycodendrimers and glyconanoparticles have the potential to improve or replace antibiotic treatments that are now subverted by resistance. Multivalent glycoconjugates have also been used for stimulating the innate and adaptive immune systems, for example with carbohydrate-based vaccines. Bacteria present on their surfaces natural multivalent glycoconjugates such as lipopolysaccharides and S-layers that can also be exploited or targeted in anti-infectious strategies.
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Affiliation(s)
- Anna Bernardi
- Università di Milano, Dipartimento di Chimica Organica e Industriale and Centro di Eccellenza CISI, via Venezian 21, 20133 Milano, Italy
| | | | - Alessandro Casnati
- Università degli Studi di Parma, Dipartimento di Chimica, Parco Area delle Scienze 17/a, 43100 Parma, Italy
| | - Cristina De Castro
- Department of Chemical Sciences, Università di Napoli Federico II, Complesso Universitario Monte Santangelo, Via Cintia 4, I-80126 Napoli, Italy
| | - Tamis Darbre
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012, Berne, Switzerland
| | - Franck Fieschi
- Institut de Biologie Structurale, 41 rue Jules Horowitz, 38027 Grenoble Cedex 1, France
| | - Jukka Finne
- Department of Biosciences, University of Helsinki, P. O. Box 56, FI-00014 Helsinki, Finland
| | - Horst Funken
- Institute of Molecular Enzyme Technology, Heinrich-Heine-University Düsseldorf, Forschungszentrum Jülich, D-42425 Jülich, Germany
| | - Karl-Erich Jaeger
- Institute of Molecular Enzyme Technology, Heinrich-Heine-University Düsseldorf, Forschungszentrum Jülich, D-42425 Jülich, Germany
| | - Martina Lahmann
- School of Chemistry, Bangor University, Deiniol Road Bangor, Gwynedd LL57 2UW, UK
| | - Thisbe K. Lindhorst
- Otto Diels Institute of Organic Chemistry, Christiana Albertina University of Kiel, Otto-Hahn-Platz 3-4, D-24098 Kiel, Germany
| | - Marco Marradi
- Laboratory of GlycoNanotechnology, CIC biomaGUNE and CIBER-BBN, P1 de Miramón 182, 20009 San Sebastián, Spain
| | - Paul Messner
- Department of NanoBiotechnology, NanoGlycobiology Unit, University of Natural Resources and Life Sciences, Muthgasse 11, A-1190 Vienna, Austria
| | - Antonio Molinaro
- Department of Chemical Sciences, Università di Napoli Federico II, Complesso Universitario Monte Santangelo, Via Cintia 4, I-80126 Napoli, Italy
| | - Paul V. Murphy
- School of Chemistry, National University of Ireland, Galway, University Road, Galway, Ireland
| | - Cristina Nativi
- Dipartimento di Chimica, Universitá degli Studi di Firenze, Via della Lastruccia, 13, I-50019 Sesto Fiorentino – Firenze, Italy
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology, UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Soledad Penadés
- Laboratory of GlycoNanotechnology, CIC biomaGUNE and CIBER-BBN, P1 de Miramón 182, 20009 San Sebastián, Spain
| | - Francesco Peri
- Organic and Medicinal Chemistry, University of Milano-Bicocca, Piazza della Scienza, 2, 20126 Milano, Italy
| | - Roland J. Pieters
- Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Olivier Renaudet
- Département de Chimie Moléculaire, UMR-CNRS 5250 & ICMG FR 2607, Université Joseph Fourier, BP53, 38041 Grenoble Cedex 9, France
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012, Berne, Switzerland
| | - Barbara Richichi
- Dipartimento di Chimica, Universitá degli Studi di Firenze, Via della Lastruccia, 13, I-50019 Sesto Fiorentino – Firenze, Italy
| | - Javier Rojo
- Glycosystems Laboratory, Instituto de Investigaciones Químicas, CSIC – Universidad de Sevilla, Av. Américo Vespucio, 49, Seville 41092, Spain
| | - Francesco Sansone
- Università degli Studi di Parma, Dipartimento di Chimica, Parco Area delle Scienze 17/a, 43100 Parma, Italy
| | - Christina Schäffer
- Department of NanoBiotechnology, NanoGlycobiology Unit, University of Natural Resources and Life Sciences, Muthgasse 11, A-1190 Vienna, Austria
| | - W. Bruce Turnbull
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Sébastien Vidal
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires UMR 5246, CNRS, Université Claude Bernard Lyon 1, 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, France
| | - Stéphane Vincent
- University of Namur (FUNDP), Département de Chimie, Laboratoire de Chimie Bio-Organique, rue de Bruxelles 61, B-5000 Namur, Belgium
| | - Tom Wennekes
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
- Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Anne Imberty
- Centre de Recherche sur les Macromolécules Végétales (CERMAV – CNRS), affiliated with Grenoble-Université and ICMG, F-38041 Grenoble, France
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20
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Bouckaert J, Li Z, Xavier C, Almant M, Caveliers V, Lahoutte T, Weeks SD, Kovensky J, Gouin SG. Heptyl α-D-Mannosides Grafted on a β-Cyclodextrin Core To Interfere withEscherichia coliAdhesion: An In Vivo Multivalent Effect. Chemistry 2013; 19:7847-55. [DOI: 10.1002/chem.201204015] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 03/11/2013] [Indexed: 12/26/2022]
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21
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Liu J, Gray WD, Davis ME, Luo Y. Peptide- and saccharide-conjugated dendrimers for targeted drug delivery: a concise review. Interface Focus 2012; 2:307-24. [PMID: 23741608 PMCID: PMC3363024 DOI: 10.1098/rsfs.2012.0009] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Accepted: 02/24/2012] [Indexed: 01/01/2023] Open
Abstract
Dendrimers comprise a category of branched materials with diverse functions that can be constructed with defined architectural and chemical structures. When decorated with bioactive ligands made of peptides and saccharides through peripheral chemical groups, dendrimer conjugates are turned into nanomaterials possessing attractive binding properties with the cognate receptors. At the cellular level, bioactive dendrimer conjugates can interact with cells with avidity and selectivity, and this function has particularly stimulated interests in investigating the targeting potential of dendrimer materials for the design of drug delivery systems. In addition, bioactive dendrimer conjugates have so far been studied for their versatile capabilities to enhance stability, solubility and absorption of various types of therapeutics. This review presents a brief discussion on three aspects of the recent studies to use peptide- and saccharide-conjugated dendrimers for drug delivery: (i) synthesis methods, (ii) cell- and tissue-targeting properties and (iii) applications of conjugated dendrimers in drug delivery nanodevices. With more studies to elucidate the structure-function relationship of ligand-dendrimer conjugates in transporting drugs, the conjugated dendrimers hold promise to facilitate targeted delivery and improve drug efficacy for discovery and development of modern pharmaceutics.
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Affiliation(s)
- Jie Liu
- Department of Biomedical Engineering, College of Engineering, Peking University, Room 206, Fangzheng Building, 298 Chengfu Road, Haidian District, Beijing 100871, People's Republic of China
| | - Warren D. Gray
- Department of Biomedical Engineering, College of Engineering, Peking University, Room 206, Fangzheng Building, 298 Chengfu Road, Haidian District, Beijing 100871, People's Republic of China
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive, Room 2127, Atlanta, GA 30322-0535, USA
| | - Michael E. Davis
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive, Room 2127, Atlanta, GA 30322-0535, USA
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Division of Cardiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Ying Luo
- Department of Biomedical Engineering, College of Engineering, Peking University, Room 206, Fangzheng Building, 298 Chengfu Road, Haidian District, Beijing 100871, People's Republic of China
- National Engineering Laboratory for Regenerative and Implantable Medical Devices, Room 408, Building D, Guangzhou International Business Incubator, Guangzhou Science Park, Guangzhou 510663, People's Republic of China
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22
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23
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Mintzer MA, Dane EL, O'Toole GA, Grinstaff MW. Exploiting dendrimer multivalency to combat emerging and re-emerging infectious diseases. Mol Pharm 2011; 9:342-54. [PMID: 22126461 DOI: 10.1021/mp2005033] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The emergence and re-emergence of bacterial strains that are resistant to current antibiotics reveal the clinical need for new agents that possess broad-spectrum antibacterial activity. Furthermore, bacteriophobic coatings that repel bacteria are important for medical devices, as the lifetime, reliability, and performance of implant devices are hindered by bacterial adhesion and infection. Dendrimers, a specific class of monodisperse macromolecules, have recently shown potential to function as both antibacterial agents and antimicrobial surface coatings. This review discusses the limitations with currently used antibacterial agents and describes how various classes of dendrimers, including glycodendrimers, cationic dendrimers, anionic dendrimers, and peptide dendrimers, have the potential to improve upon or replace certain antibiotics. Furthermore, the unexplored areas in this field of research will be mentioned to present opportunities for additional studies regarding the use of dendrimers as antimicrobial agents.
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Affiliation(s)
- Meredith A Mintzer
- Department of Biomedical Engineering and Chemistry, Boston University, Boston, Massachusetts 02215, United States
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Schwardt O, Rabbani S, Hartmann M, Abgottspon D, Wittwer M, Kleeb S, Zalewski A, Smieško M, Cutting B, Ernst B. Design, synthesis and biological evaluation of mannosyl triazoles as FimH antagonists. Bioorg Med Chem 2011; 19:6454-73. [DOI: 10.1016/j.bmc.2011.08.057] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Revised: 08/24/2011] [Accepted: 08/25/2011] [Indexed: 10/17/2022]
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Almant M, Moreau V, Kovensky J, Bouckaert J, Gouin SG. Clustering of Escherichia coli Type-1 Fimbrial Adhesins by Using Multimeric Heptyl α-D-Mannoside Probes with a Carbohydrate Core. Chemistry 2011; 17:10029-38. [DOI: 10.1002/chem.201100515] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 06/16/2011] [Indexed: 11/10/2022]
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Klein T, Abgottspon D, Wittwer M, Rabbani S, Herold J, Jiang X, Kleeb S, Lüthi C, Scharenberg M, Bezençon J, Gubler E, Pang L, Smiesko M, Cutting B, Schwardt O, Ernst B. FimH Antagonists for the Oral Treatment of Urinary Tract Infections: From Design and Synthesis to in Vitro and in Vivo Evaluation. J Med Chem 2010; 53:8627-41. [DOI: 10.1021/jm101011y] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tobias Klein
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Daniela Abgottspon
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Matthias Wittwer
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Said Rabbani
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Janno Herold
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Xiaohua Jiang
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Simon Kleeb
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Christine Lüthi
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Meike Scharenberg
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Jacqueline Bezençon
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Erich Gubler
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Lijuan Pang
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Martin Smiesko
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Brian Cutting
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Oliver Schwardt
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Beat Ernst
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
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Schierholt A, Hartmann M, Schwekendiek K, Lindhorst TK. Cysteine-Based Mannoside Glycoclusters: Synthetic Routes and Antiadhesive Properties. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000185] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Maheshwari R, Levenson EA, Kiick KL. Manipulation of electrostatic and saccharide linker interactions in the design of efficient glycopolypeptide-based cholera toxin inhibitors. Macromol Biosci 2010; 10:68-81. [PMID: 19780061 PMCID: PMC2893567 DOI: 10.1002/mabi.200900182] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Multivalent, glycopolymer inhibitors designed for the treatment of disease and pathogen infection have shown improvements in binding correlated with general changes in glycopolymer architecture and composition. We have previously demonstrated that control of glycopolypeptide backbone extension and ligand spacing significantly impacts the inhibition of the cholera toxin B subunit pentamer (CT B(5)) by these polymers. In the studies reported here, we elucidate the role of backbone charge and linker length in modulating the inhibition event. Peptides of the sequence AXPXG (where X is a positive, neutral or negative amino acid), equipped with the alkyne functionality of propargyl glycine, were designed and synthesized via solid-phase peptide synthetic methods and glycosylated via Cu(I)-catalyzed alkyne-azide cycloaddition reactions. The capacity of the glycopeptides to inhibit the binding of the B(5) subunit of cholera toxin was evaluated. These studies indicated that glycopeptides with a negatively charged backbone show improved inhibition of the binding event relative to the other glycopeptides. In addition, variations in the length of the linker between the peptide and the saccharide ligand also affected the inhibition of CT by the glycopeptides. Our findings suggest that, apart from appropriate saccharide spacing and polypeptide chain extension, saccharide linker conformation and the systematic placement of charges on the polypeptide backbone are also significant variables that can be tuned to improve the inhibitory potencies of glycopolypeptide-based multivalent inhibitors.
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Affiliation(s)
- Ronak Maheshwari
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, Delaware 19716 USA Fax: +1 (302) 831-4545
| | - Eric A. Levenson
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716 USA
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, Delaware 19716 USA Fax: +1 (302) 831-4545. Delaware Biotechnology Institute, 15 Innovation Way, Newark, Delaware 19711 USA
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Abstract
From the authors' opinion, this chapter constitutes a modest extension of the seminal and inspiring contribution of Stowell and Lee on neoglycoconjugates published in this series [C. P. Stowell and Y. C. Lee, Adv. Carbohydr. Chem. Biochem., 37 (1980) 225-281]. The outstanding progresses achieved since then in the field of the "glycoside cluster effect" has witnessed considerable creativity in the design and synthetic strategies toward a vast array of novel carbohydrate structures and reflects the dynamic activity in the field even since the recent chapter by the Nicotra group in this series [F. Nicotra, L. Cipolla, F. Peri, B. La Ferla, and C. Radaelli, Adv. Carbohydr. Chem. Biochem., 61 (2007) 353-398]. Beyond the more classical neoglycoproteins and glycopolymers (not covered in this work) a wide range of unprecedented and often artistically beautiful multivalent and monodisperse nanostructures, termed glycodendrimers for the first time in 1993, has been created. This chapter briefly surveys the concept of multivalency involved in carbohydrate-protein interactions. The topic is also discussed in regard to recent steps undertaken in glycobiology toward identification of lead candidates using microarrays and modern analytical tools. A systematic description of glycocluster and glycodendrimer synthesis follows, starting from the simplest architectures and ending in the most complex ones. Presentation of multivalent glycostructures of intermediate size and comprising, calix[n]arene, porphyrin, cyclodextrin, peptide, and carbohydrate scaffolds, has also been intercalated to better appreciate the growing synthetic complexity involved. A subsection describing novel all-carbon-based glycoconjugates such as fullerenes and carbon nanotubes is inserted, followed by a promising strategy involving dendrons self-assembling around metal chelates. The chapter then ends with those glycodendrimers that have been prepared using commercially available dendrimers possessing varied functionalities, or systematically synthesized using either divergent or convergent strategies.
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Abstract
Carbohydrates are the most abundant natural products. Besides their role in metabolism and as structural building blocks, they are fundamental constituents of every cell surface, where they are involved in vital cellular recognition processes. Carbohydrates are a relatively untapped source of new drugs and therefore offer exciting new therapeutic opportunities. Advances in the functional understanding of carbohydrate-protein interactions have enabled the development of a new class of small-molecule drugs, known as glycomimetics. These compounds mimic the bioactive function of carbohydrates and address the drawbacks of carbohydrate leads, namely their low activity and insufficient drug-like properties. Here, we examine examples of approved carbohydrate-derived drugs, discuss the potential of carbohydrate-binding proteins as new drug targets (focusing on the lectin families) and consider ways to overcome the challenges of developing this unique class of novel therapeutics.
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Affiliation(s)
- Beat Ernst
- Institute of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, Basel, Switzerland.
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Gouin SG, Wellens A, Bouckaert J, Kovensky J. Synthetic Multimeric Heptyl Mannosides as Potent Antiadhesives of UropathogenicEscherichia coli. ChemMedChem 2009; 4:749-55. [PMID: 19343765 DOI: 10.1002/cmdc.200900034] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sébastien G Gouin
- Department of Chemistry, Laboratoire des Glucides UMR CNRS 6219, Institut de Chimie de Picardie, Université de Picardie Jules Verne, 33 Rue Saint Leu, 80039 Amiens Cedex, France.
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Jayaraman N. Multivalent ligand presentation as a central concept to study intricate carbohydrate–protein interactions. Chem Soc Rev 2009; 38:3463-83. [DOI: 10.1039/b815961k] [Citation(s) in RCA: 185] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Architectures of Multivalent Glycomimetics for Probing Carbohydrate–Lectin Interactions. GLYCOSCIENCE AND MICROBIAL ADHESION 2009; 288:183-65. [DOI: 10.1007/128_2008_30] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Pieters RJ. Maximising multivalency effects in protein–carbohydrate interactions. Org Biomol Chem 2009; 7:2013-25. [DOI: 10.1039/b901828j] [Citation(s) in RCA: 288] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yu Q, Schwidom D, Exner A, Carlsen P. Synthesis of novel homo-N-nucleoside analogs composed of a homo-1,4-dioxane sugar analog and substituted 1,3,5-triazine base equivalents. Molecules 2008; 13:3092-106. [PMID: 19078851 PMCID: PMC6245424 DOI: 10.3390/molecules13123092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 11/21/2008] [Accepted: 12/03/2008] [Indexed: 11/23/2022] Open
Abstract
Enantioselective syntheses from dimethyl tartrate of 1,3,5-triazine homo-N-nucleoside analogs, containing a 1,4-dioxane moiety replacing the sugar unit in natural nucleosides, were accomplished. The triazine heterocycle in the nucleoside analogs was further substituted with combinations of NH2, OH and Cl in the 2,4-triazine positions.
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Affiliation(s)
- Qiang Yu
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway; E-mail: (Q. Y.)
| | - Dirk Schwidom
- Socrates exchange student: Department of Chemistry, University of Hamburg, D-20146 Hamburg, Germany
| | - Alexander Exner
- Socrates exchange student: Department of Chemistry, University of Hamburg, D-20146 Hamburg, Germany
| | - Per Carlsen
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway; E-mail: (Q. Y.)
- Author to whom correspondence should be addressed; E-mail: ; Fax: +47-73594256
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Touaibia M, Roy R. First Synthesis of “Majoral-Type” Glycodendrimers Bearing Covalently Bound α-d-Mannopyranoside Residues onto a Hexachlocyclotriphosphazene Core. J Org Chem 2008; 73:9292-302. [DOI: 10.1021/jo801850f] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohamed Touaibia
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Montréal, Québec, Canada H3C 3P8
| | - René Roy
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Montréal, Québec, Canada H3C 3P8
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Yu Q, Kaffarnik S, Carlsen P. Synthesis of Optically Active 1,4-Dioxane Nucleotide Analogs. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910802326513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Targeting virulence traits: potential strategies to combat extraintestinal pathogenic E. coli infections. Curr Opin Microbiol 2008; 11:409-13. [DOI: 10.1016/j.mib.2008.09.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Accepted: 09/02/2008] [Indexed: 01/22/2023]
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Branderhorst HM, Ruijtenbeek R, Liskamp RMJ, Pieters RJ. Multivalent Carbohydrate Recognition on a Glycodendrimer‐Functionalized Flow‐Through Chip. Chembiochem 2008; 9:1836-44. [DOI: 10.1002/cbic.200800195] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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41
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Zuschrader J, Schöfberger W, Falk H. A carbohydrate-linked hypericinic photosensitizing agent. MONATSHEFTE FUR CHEMIE 2008. [DOI: 10.1007/s00706-008-0928-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu S, Kiick KL. Architecture Effects on the Binding of Cholera Toxin by Helical Glycopolypeptides. Macromolecules 2008; 41:764-772. [PMID: 19214239 PMCID: PMC2639716 DOI: 10.1021/ma702128a] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of binding events in biological systems are mediated by multivalent interactions between oligosaccharides and saccharide receptors present on pathogens and cell surfaces. In particular, given the important role of multivalent interaction between proteins and carbohydrates in the initial step of pathogen recognition, many glycosylated molecules and polymers have been synthesized in order to mimic the carbohydrate ligands and to inhibit the binding of the pathogen to its target. In this work, we extend our evaluation of the impact of the architecture of well-defined glycopolypeptides on the inhibition of binding of the cholera toxin B pentamer (CT B(5)) subunit. Here we report the production of two families of α-helical glycopolypeptides which were synthesized via a combination of protein engineering and chemical methods. The presentation of pendant saccharides on the polypeptide backbones, as well as their valencies, can be well controlled via these methods. Control of the backbone conformation, introduced in this report, is also possible via these strategies. The polypeptides and glycopolypeptides were characterized via SDS-PAGE analysis, (1)H NMR, and MALDI-TOF mass spectrometry. Their conformation and hydrodynamic volume were characterized by circular dichroic (CD) spectroscopy and gel permeation chromatography (GPC), respectively. The binding of CT B(5) by these glycopolypeptides was evaluated via direct enzyme-linked immunosorbent assay (DELA). The effects of spacing and conformation were elucidated by comparison of the binding exhibited by helical glycopolypeptides with that of random-coil glycopolypeptides.
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Branderhorst HM, Kooij R, Salminen A, Jongeneel LH, Arnusch CJ, Liskamp RMJ, Finne J, Pieters RJ. Synthesis of multivalent Streptococcus suis adhesion inhibitors by enzymatic cleavage of polygalacturonic acid and ‘click’ conjugation. Org Biomol Chem 2008; 6:1425-34. [DOI: 10.1039/b800283e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Polizzotti BD, Maheshwari R, Vinkenborg J, Kiick KL. Effects of Saccharide Spacing and Chain Extension on Toxin Inhibition by Glycopolypeptides of Well-Defined Architecture. Macromolecules 2007; 40:7103-7110. [PMID: 19169374 PMCID: PMC2629637 DOI: 10.1021/ma070725o] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Many recognition events important in biology are mediated via multivalent interactions between relevant oligosaccharides and multiple saccharide receptors present on lectins, viruses, toxins, and cell surfaces. Because of the important role played by protein-carbohydrate interactions in these pathogenic recognition events and in other human diseases, considerable effort has been devoted toward the development of multivalent polymeric ligands for carbohydrate-binding proteins. In this work, we report the synthesis of new polypeptide-based glycopolymers produced via a combination of protein engineering and chemical methods. These methodologies permit control over the number and the spacing of saccharides on the scaffold, as well as the conformation of the polymer backbone, and allow a more purposeful design of polymers for manipulation of multivalent binding events. Two families of galactose-bearing glycopolypeptides with random coil conformations, [(AG)(3)PEG](y) (y = 10 and 16) and {[(AG)(2)PSG](2)[(AG)(2)PEG][(AG)(2)PSG](2)}(y) (y = 6), have been synthesized. The carboxylic acid functionality of the glutamic acid residues allowed subsequent modification with amino-saccharides to yield the desired glycopolypeptides; selective placement of the glutamic acid group permitted investigation of the effects of multivalency and saccharide spacing on toxin inhibition. In addition, a family of galactose-functionalized PGA-based glycopolymers of varying molecular weights was also synthesized to compare the effects of backbone flexibility and hydrodynamic volume, relative to the recombinant glycopolypeptides, on toxin inhibition. Glycopolypeptides were characterized via (1)H NMR, MALDI-TOF mass spectrometry, SDS-PAGE analysis, and spectrophotometric assays. They were tested as inhibitors of the binding of the cholera toxin B subunit via direct enzyme-linked assays. The data from these experiments confirm the relevance of appropriate saccharide spacing on controlling the binding event and also indicate the influence of chain extension in improving inhibition.
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Affiliation(s)
- Brian D Polizzotti
- Department of Materials Science and Engineering and Delaware Biotechnology Institute, University of Delaware, 201 DuPont Hall, Newark, Delaware 19716
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46
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Ozawa C, Hojo H, Nakahara Y, Katayama H, Nabeshima K, Akahane T, Nakahara Y. Synthesis of glycopeptide dendrimer by a convergent method. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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47
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Touaibia M, Wellens A, Shiao TC, Wang Q, Sirois S, Bouckaert J, Roy R. Mannosylated G(0) Dendrimers with Nanomolar Affinities toEscherichia coli FimH. ChemMedChem 2007; 2:1190-201. [PMID: 17589887 DOI: 10.1002/cmdc.200700063] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Pentaerythritol and bis-pentaerythritol scaffolds were used for the preparation of first generation glycodendrimers bearing aryl alpha-D-mannopyranoside residues assembled using single-step Sonogashira and click chemistry. The carbohydrate precursors were built with either para-iodophenyl, propargyl, or 2-azidoethyl aglycones whereas the pentaerythritol moieties were built with terminal azide or propargyl groups, respectively. Cross-linking abilities of this series of glycodendrimers were first evaluated with the lectin from Canavalia ensiformis (Concanavalin A). Surface plasmon resonance measurements showed these two families of mannosylated clusters as the best ligands known to date toward Escherichia coli K12 FimH with subnanomolar affinities. Tetramer 4 had a K(d) of 0.45 nM. These clusters were 1000 times more potent than mannose for their capacity to inhibit the binding of E. coli to erythrocytes in vitro.
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Affiliation(s)
- Mohamed Touaibia
- Equipe PharmaQAM, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888 Succ centre-ville Montréal, Québec, H3C 3P8, Canada
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Salminen A, Loimaranta V, Joosten JAF, Khan AS, Hacker J, Pieters RJ, Finne J. Inhibition of P-fimbriated Escherichia coli adhesion by multivalent galabiose derivatives studied by a live-bacteria application of surface plasmon resonance. J Antimicrob Chemother 2007; 60:495-501. [PMID: 17623698 DOI: 10.1093/jac/dkm251] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Uropathogenic P-fimbriated Escherichia coli adheres to host cells by specific adhesins recognizing galabiose (Galalpha1-4Gal)-containing structures on cell surfaces. In search of agents inhibiting this first step of infection, the inhibition potency of a set of synthetic mono- and multivalent galabiose compounds was evaluated. In order to mimic the flow conditions of natural infections, a live-bacteria application of surface plasmon resonance (SPR) was established. METHODS AND RESULTS For the measurement of the binding of E. coli to a surface containing galabiose, live bacteria were injected over the flow cell, and the inhibition of adhesion caused by the galabiose inhibitors was recorded. Quantitative binding data were recorded in real-time for each inhibitor. The results were compared with those of conventional static haemagglutination and ELISA-based cell adhesion assays. Compared with the Gram-positive Streptococcus suis bacteria, which also bind to galabiose and whose binding inhibition is strongly dependent on the multivalency of the inhibitor, E. coli inhibition was only moderately affected by the valency. However, a novel octavalent compound was found to be the most effective inhibitor of E. coli PapG(J96) adhesion, with an IC50 value of 2 microM. CONCLUSIONS Measurement of bacterial adhesion by SPR is an efficient way to characterize the adhesion of whole bacterial cells and allows the characterization of the inhibitory potency of adhesion inhibitors under dynamic flow conditions. Under these conditions, multivalency increases the anti-adhesion potency of galabiose-based inhibitors of P-fimbriated E. coli adhesion and provides a promising approach for the design of high-affinity anti-adhesion agents.
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Affiliation(s)
- Annika Salminen
- Department of Medical Biochemistry and Molecular Biology, University of Turku, FI-20520 Turku, Finland
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Abstract
Bacterial adhesion is often a prelude to infection. In many cases, this process is governed by protein-carbohydrate interactions. Intervention at this early stage of infection is a conceptually highly attractive alternative to conventional antibiotics that are increasingly prone to resistance. The lack of high-affinity inhibitors of adhesion has proven to be a hurdle for further exploitation of this concept; however, new developments indicate a positive change. Structure-based design at the monovalent level and also evaluation of glycodendrimers and glycopolymers have yielded structures of high affinity. In addition to the development of inhibitors, topics of this review include available structural information of adhesion proteins, carbohydrate specificities of the various pathogens and their adhesion proteins. Other new developments aimed at affecting bacterial adhesion and the use of the adhesins for bacterial detection are also discussed.
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Affiliation(s)
- Roland J Pieters
- Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, NL-3508 TB Utrecht, The Netherlands.
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