1
|
Palmioli A, Moretti L, Vezzoni CA, Legnani L, Sperandeo P, Baldini L, Sansone F, Airoldi C, Casnati A. Multivalent calix[4]arene-based mannosylated dendrons as new FimH ligands and inhibitors. Bioorg Chem 2023; 138:106613. [PMID: 37224739 DOI: 10.1016/j.bioorg.2023.106613] [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: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/11/2023] [Indexed: 05/26/2023]
Abstract
We report the synthesis and biological characterization of a novel class of multivalent glycoconjugates as hit compounds for the design of new antiadhesive therapies against urogenital tract infections (UTIs) caused by uropathogenic E. coli strains (UPEC). The first step of UTIs is the molecular recognition of high mannose N-glycan expressed on the surface of urothelial cells by the bacterial lectin FimH, allowing the pathogen adhesion required for mammalian cell invasion. The inhibition of FimH-mediated interactions is thus a validated strategy for the treatment of UTIs. To this purpose, we designed and synthesized d-mannose multivalent dendrons supported on a calixarene core introducing a significant structural change from a previously described family of dendrimers bearing the same dendrons units on a flexible pentaerythritol scaffold core. The new molecular architecture increased the inhibitory potency against FimH-mediated adhesion processes by about 16 times, as assessed by yeast agglutination assay. Moreover, the direct molecular interaction of the new compounds with FimH protein was assessed by on-cell NMR experiments acquired in the presence of UPEC cells.
Collapse
Affiliation(s)
- Alessandro Palmioli
- BioOrg NMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.zza della Scienza, 2, 20126 Milan, Italy
| | - Luca Moretti
- BioOrg NMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.zza della Scienza, 2, 20126 Milan, Italy
| | - Carlo Alberto Vezzoni
- Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze 17/a, 43124 Parma, Italy
| | - Laura Legnani
- BioOrg NMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.zza della Scienza, 2, 20126 Milan, Italy
| | - Paola Sperandeo
- Department of Pharmacological and Biomolecular Sciences, University of Milano, Via Balzaretti, 9/11/13, 20133 Milano, Italy
| | - Laura Baldini
- Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze 17/a, 43124 Parma, Italy
| | - Francesco Sansone
- Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze 17/a, 43124 Parma, Italy
| | - Cristina Airoldi
- BioOrg NMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.zza della Scienza, 2, 20126 Milan, Italy.
| | - Alessandro Casnati
- Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze 17/a, 43124 Parma, Italy.
| |
Collapse
|
2
|
Al-Mughaid H, Khazaaleh M. α-d-Mannoside ligands with a valency ranging from one to three: Synthesis and hemagglutination inhibitory properties. Carbohydr Res 2021; 508:108396. [PMID: 34298357 DOI: 10.1016/j.carres.2021.108396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/29/2021] [Accepted: 07/06/2021] [Indexed: 11/28/2022]
Abstract
Six mono-, di-, and trivalent α-d-mannopyranosyl conjugates built on aromatic scaffolds were synthesized in excellent yields by Cu(I) catalyzed azide-alkyne cycloaddition reaction (CuAAC). These conjugates were designed to have unique, flexible tails that combine a mid-tail triazole ring, to interact with the tyrosine gate, with a terminal phenyl group armed with benzylic hydroxyl groups to avoid solubility problems as well as to provide options to connect to other supports. Biological evaluation of the prepared conjugates in hemagglutination inhibition (HAI) assay revealed that potency increases with valency and the trivalent ligand 6d (HAI = 0.005 mM) is approximately sevenfold better than the best meta-oriented monovalent analogues 2d and 4d (HAI ≈ 0.033 mM) and so may serve as a good starting point to find new lead ligands.
Collapse
Affiliation(s)
- Hussein Al-Mughaid
- Department of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan.
| | - Maha Khazaaleh
- Department of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan
| |
Collapse
|
3
|
Montes-Robledo A, Baldiris-Avila R, Galindo JF. D-Mannoside FimH Inhibitors as Non-Antibiotic Alternatives for Uropathogenic Escherichia coli. Antibiotics (Basel) 2021; 10:antibiotics10091072. [PMID: 34572654 PMCID: PMC8465801 DOI: 10.3390/antibiotics10091072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 11/20/2022] Open
Abstract
FimH is a type I fimbria of uropathogenic Escherichia coli (UPEC), recognized for its ability to adhere and infect epithelial urinary tissue. Due to its role in the virulence of UPEC, several therapeutic strategies have focused on the study of FimH, including vaccines, mannosides, and molecules that inhibit their assembly. This work has focused on the ability of a set of monosubstituted and disubstituted phenyl mannosides to inhibit FimH. To determine the 3D structure of FimH for our in silico studies, we obtained fifteen sequences by PCR amplification of the fimH gene from 102 UPEC isolates. The fimH sequences in BLAST had a high homology (97–100%) to our UPEC fimH sequences. A search for the three-dimensional crystallographic structure of FimH proteins in the PDB server showed that proteins 4X5P and 4XO9 were found in 10 of the 15 isolates, presenting a 67% influx among our UPEC isolates. We focused on these two proteins to study the stability, free energy, and the interactions with different mannoside ligands. We found that the interactions with the residues of aspartic acid (ASP 54) and glutamine (GLN 133) were significant to the binding stability. The ligands assessed demonstrated high binding affinity and stability with the lectin domain of FimH proteins during the molecular dynamic simulations, based on MM-PBSA analysis. Therefore, our results suggest the potential utility of phenyl mannoside derivatives as FimH inhibitors to mitigate urinary tract infections produced by UPEC; thus, decreasing colonization, disease burden, and the costs of medical care.
Collapse
Affiliation(s)
- Alfredo Montes-Robledo
- Grupo de Investigación Microbiología Clínica y Ambiental, Facultad de Ciencias Exactas y Naturales, Universidad de Cartagena, Cartagena de Indias 13001, Colombia;
- Maestría en Microbiología, Facultad de Medicina, Universidad de Cartagena, Cartagena de Indias 13001, Colombia
| | - Rosa Baldiris-Avila
- Grupo de Investigación Microbiología Clínica y Ambiental, Facultad de Ciencias Exactas y Naturales, Universidad de Cartagena, Cartagena de Indias 13001, Colombia;
- Maestría en Microbiología, Facultad de Medicina, Universidad de Cartagena, Cartagena de Indias 13001, Colombia
- Grupo de Investigación CIPTEC, Facultad de Ingeniería, Fundacion Universitaria Tecnologico Comfenalco—Cartagena, Cartagena de Indias 13001, Colombia
- Correspondence: (R.B.-A.); (J.F.G.)
| | - Johan Fabian Galindo
- Departamento de Química, Universidad Nacional de Colombia, Bogotá 11321, Colombia
- Correspondence: (R.B.-A.); (J.F.G.)
| |
Collapse
|
4
|
The Synthesis and Evaluation of Multivalent Glycopeptoids as Inhibitors of the Adhesion of Candida albicans. Pathogens 2021; 10:pathogens10050572. [PMID: 34066787 PMCID: PMC8151480 DOI: 10.3390/pathogens10050572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/02/2021] [Accepted: 05/05/2021] [Indexed: 01/12/2023] Open
Abstract
Multivalency is a strategy commonly used by medicinal carbohydrate chemists to increase the affinity of carbohydrate-based small molecules for their protein targets. Although this approach has been very successful in enhancing binding to isolated carbohydrate-binding proteins, anticipating the multivalent presentations that will improve biological activity in cellular assays remains challenging. In this work we investigate linear molecular scaffolds for the synthesis of a low valency presentation of a divalent galactoside 1, previously identified by us as an inhibitor of the adhesion of opportunistic fungal pathogen Candida albicans to buccal epithelial cells (BECs). Adhesion inhibition assays revealed that multivalent glycoconjugate 3 is more effective at blocking C. albicans adherence to BECs upon initial exposure to epithelial cells. Interestingly, 3 did not seem to have any effect when it was pre-incubated with yeast cells, in contrast to the original lead compound 1, which caused a 25% reduction of adhesion. In competition assays, where yeast cells and BECs were co-incubated, multivalent glycoconjugate 3 inhibited up to 49% C. albicans adherence in a dose-dependent manner. The combined effect of compound 1 towards both yeast cells and BECs allowed it to achieve over 60% inhibition of the adhesion of C. albicans to BECs in competition assays.
Collapse
|
5
|
Sarshar M, Behzadi P, Ambrosi C, Zagaglia C, Palamara AT, Scribano D. FimH and Anti-Adhesive Therapeutics: A Disarming Strategy Against Uropathogens. Antibiotics (Basel) 2020; 9:E397. [PMID: 32664222 PMCID: PMC7400442 DOI: 10.3390/antibiotics9070397] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 02/06/2023] Open
Abstract
Chaperone-usher fimbrial adhesins are powerful weapons against the uropathogens that allow the establishment of urinary tract infections (UTIs). As the antibiotic therapeutic strategy has become less effective in the treatment of uropathogen-related UTIs, the anti-adhesive molecules active against fimbrial adhesins, key determinants of urovirulence, are attractive alternatives. The best-characterized bacterial adhesin is FimH, produced by uropathogenic Escherichia coli (UPEC). Hence, a number of high-affinity mono- and polyvalent mannose-based FimH antagonists, characterized by different bioavailabilities, have been reported. Given that antagonist affinities are firmly associated with the functional heterogeneities of different FimH variants, several FimH inhibitors have been developed using ligand-drug discovery strategies to generate high-affinity molecules for successful anti-adhesion therapy. As clinical trials have shown d-mannose's efficacy in UTIs prevention, it is supposed that mannosides could be a first-in-class strategy not only for UTIs, but also to combat other Gram-negative bacterial infections. Therefore, the current review discusses valuable and effective FimH anti-adhesive molecules active against UTIs, from design and synthesis to in vitro and in vivo evaluations.
Collapse
Affiliation(s)
- Meysam Sarshar
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory affiliated to Institute Pasteur Italia- Cenci Bolognetti Foundation, 00185 Rome, Italy
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
- Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran 1316943551, Iran
| | - Payam Behzadi
- Department of Microbiology, College of Basic Sciences, Shahr-e-Qods Branch, Islamic Azad University, Tehran 37541-374, Iran
| | - Cecilia Ambrosi
- IRCCS San Raffaele Pisana, Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy
| | - Carlo Zagaglia
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy
| | - Anna Teresa Palamara
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory affiliated to Institute Pasteur Italia- Cenci Bolognetti Foundation, 00185 Rome, Italy
- IRCCS San Raffaele Pisana, Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy
| | - Daniela Scribano
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy
- Dani Di Giò Foundation-Onlus, 00193 Rome, Italy
| |
Collapse
|
6
|
Camprubí-Font C, Martinez-Medina M. Why the discovery of adherent-invasive Escherichia coli molecular markers is so challenging? World J Biol Chem 2020; 11:1-13. [PMID: 32405343 PMCID: PMC7205867 DOI: 10.4331/wjbc.v11.i1.1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/18/2020] [Accepted: 03/31/2020] [Indexed: 02/05/2023] Open
Abstract
Adherent-invasive Escherichia coli (AIEC) strains have been extensively related to Crohn’s disease (CD) etiopathogenesis. Higher AIEC prevalence in CD patients versus controls has been reported, and its mechanisms of pathogenicity have been linked to CD physiopathology. In CD, the therapeutic armamentarium remains limited and non-curative; hence, the necessity to better understand AIEC as a putative instigator or propagator of the disease is certain. Nonetheless, AIEC identification is currently challenging because it relies on phenotypic assays based on infected cell cultures which are highly time-consuming, laborious and non-standardizable. To address this issue, AIEC molecular mechanisms and virulence genes have been studied; however, a specific and widely distributed genetic AIEC marker is still missing. The finding of molecular tools to easily identify AIEC could be useful in the identification of AIEC carriers who could profit from personalized treatment. Also, it would significantly promote AIEC epidemiological studies. Here, we reviewed the existing data regarding AIEC genetics and presented those molecular markers that could assist with AIEC identification. Finally, we highlighted the problems behind the discovery of exclusive AIEC biomarkers and proposed strategies to facilitate the search of AIEC signature sequences.
Collapse
Affiliation(s)
- Carla Camprubí-Font
- Laboratory of Molecular Microbiology, Department of Biology, University of Girona, Girona 17003, Spain
| | - Margarita Martinez-Medina
- Laboratory of Molecular Microbiology, Department of Biology, University of Girona, Girona 17003, Spain
| |
Collapse
|
7
|
Mousavifar L, Vergoten G, Charron G, Roy R. Comparative Study of Aryl O-, C-, and S-Mannopyranosides as Potential Adhesion Inhibitors toward Uropathogenic E. coli FimH. Molecules 2019; 24:E3566. [PMID: 31581627 PMCID: PMC6804135 DOI: 10.3390/molecules24193566] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/27/2019] [Accepted: 10/01/2019] [Indexed: 11/17/2022] Open
Abstract
A set of three mannopyranoside possessing identical 1,1'-biphenyl glycosidic pharmacophore but different aglyconic atoms were synthesized using either a palladium-catalyzed Heck cross coupling reaction or a metathesis reaction between their corresponding allylic glycoside derivatives. Their X-ray structures, together with their calculated 3D structures, showed strong indicators to explain the observed relative binding abilities against E. coli FimH as measured by a improved surface plasmon resonance (SPR) method. Amongst the O-, C-, and S-linked analogs, the C-linked analog showed the best ability to become a lead candidate as antagonist against uropathogenic E. coli with a Kd of 11.45 nM.
Collapse
Affiliation(s)
- Leila Mousavifar
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-Ville, Montréal, Québec H3C 3P8, Canada.
- Glycovax Pharma Inc., 424 Guy, Suite 202, Montreal, Quebec H3J 1S6, Canada.
| | - Gérard Vergoten
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 du CNRS, Université de Lille, F-59000 Lille, France.
| | - Guillaume Charron
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-Ville, Montréal, Québec H3C 3P8, Canada.
| | - René Roy
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-Ville, Montréal, Québec H3C 3P8, Canada.
- Glycovax Pharma Inc., 424 Guy, Suite 202, Montreal, Quebec H3J 1S6, Canada.
- INRS-Institut Armand-Frappier, Université du Québec, 531 boul. des Prairies, Laval, Québec H7V 1B7, Canada.
| |
Collapse
|
8
|
Mousavifar L, Touaibia M, Roy R. Development of Mannopyranoside Therapeutics against Adherent-Invasive Escherichia coli Infections. Acc Chem Res 2018; 51:2937-2948. [PMID: 30289687 DOI: 10.1021/acs.accounts.8b00397] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Preventing bacterial adhesion to host cells is a provocative and alternative approach to traditional antibiotic treatments given the increasing microbial resistance. A brief overview of common antibiotic treatments is described in light of their respective resistance and remaining susceptibility. This strategy has been seriously considered in the context of adherent-invasive infections in Crohn's disease and urinary tract infections in particular. The adhesions of various pathogenic Escherichia coli strains to host cells are primarily mediated through carbohydrate-protein interactions involving bacterial organelles called fimbriae that can recognize specific glycoconjugate receptors on host cells. Of particular interest are the FimH and PapG fimbriae, which bind to mannosylated glycoproteins and glycolipids of the galabiose series, respectively. Therefore, blocking FimH- and PapG-mediated bacterial adhesion to uroepithelial cells by high-affinity carbohydrate antagonists constitutes a challenging therapeutic target of high interest. This is of particular interest since bacterial adhesion to host cells is a parameter unlikely to be the subject of bacterial mutations without affecting the carbohydrate ligand binding interactions at the basis of the recognition and infection processes. To date, there have been several families of potent FimH antagonists that include natural O-linked as well as unnatural analogues of α-d-mannopyranosides. These observations led to a thorough understanding of the intimate binding site interactions that helped to reveal the so-called "tyrosine gate mechanism" at the origin of the strong necessary interactions with sugar-possessing hydrophobic aglycones. By modification of the aglycones of single monosaccharidic d-mannopyranosides, it was possible to replace the natural complex oligomannoside structure by simpler ones. An appealing and successful series of analogues have been disclosed, including nanomolecular architectures such as dendrimers, polymers, and liposomes. In addition, the data were compared to the above multivalent architectures and confirmed the possibility of working with small sugar candidates. This Account primarily concentrates on the most promising types of FimH inhibitors belonging to the family of α-C-linked mannopyranosides. However, one of the drawbacks associated with C-mannopyranosides has been that they were believed to be in the inverted chair conformation, which is obviously not recognized by the E. coli FimH. To decipher this situation, various synthetic approaches, conformational aspects, and restrictions are discussed using molecular modeling, high-field NMR spectroscopy, and X-ray analysis. These combined techniques pointed to the fact that several α-C-linked mannopyranosides do exist in the required 4C1 chair conformation. Ultimately, recent findings in this growing field of interest culminated in the identification of drug candidates that have reached clinical phase I.
Collapse
Affiliation(s)
- Leila Mousavifar
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-Ville, Montréal, Québec H3C 3P8, Canada
- INRS-Institut Armand-Frappier, Université du Québec, 531 boul. des Prairies, Laval, Québec H7V 1B7, Canada
| | - Mohamed Touaibia
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick E1A 3E9, Canada
| | - René Roy
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-Ville, Montréal, Québec H3C 3P8, Canada
- INRS-Institut Armand-Frappier, Université du Québec, 531 boul. des Prairies, Laval, Québec H7V 1B7, Canada
- Glycovax Pharma Inc., 424 Guy, Suite 202, Montréal, Québec H3J 1S6, Canada
| |
Collapse
|
9
|
Corfield AP. The Interaction of the Gut Microbiota with the Mucus Barrier in Health and Disease in Human. Microorganisms 2018; 6:microorganisms6030078. [PMID: 30072673 PMCID: PMC6163557 DOI: 10.3390/microorganisms6030078] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/25/2018] [Accepted: 07/30/2018] [Indexed: 02/07/2023] Open
Abstract
Glycoproteins are major players in the mucus protective barrier in the gastrointestinal and other mucosal surfaces. In particular the mucus glycoproteins, or mucins, are responsible for the protective gel barrier. They are characterized by their high carbohydrate content, present in their variable number, tandem repeat domains. Throughout evolution the mucins have been maintained as integral components of the mucosal barrier, emphasizing their essential biological status. The glycosylation of the mucins is achieved through a series of biosynthetic pathways processes, which generate the wide range of glycans found in these molecules. Thus mucins are decorated with molecules having information in the form of a glycocode. The enteric microbiota interacts with the mucosal mucus barrier in a variety of ways in order to fulfill its many normal processes. How bacteria read the glycocode and link to normal and pathological processes is outlined in the review.
Collapse
Affiliation(s)
- Anthony P Corfield
- Mucin Research Group, School of Clinical Sciences, Bristol Royal Infirmary, Level 7, Marlborough Street, Bristol BS2 8HW, UK.
| |
Collapse
|
10
|
Krammer EM, de Ruyck J, Roos G, Bouckaert J, Lensink MF. Targeting Dynamical Binding Processes in the Design of Non-Antibiotic Anti-Adhesives by Molecular Simulation-The Example of FimH. Molecules 2018; 23:E1641. [PMID: 29976867 PMCID: PMC6099838 DOI: 10.3390/molecules23071641] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 06/29/2018] [Accepted: 07/02/2018] [Indexed: 12/11/2022] Open
Abstract
Located at the tip of type I fimbria of Escherichia coli, the bacterial adhesin FimH is responsible for the attachment of the bacteria to the (human) host by specifically binding to highly-mannosylated glycoproteins located on the exterior of the host cell wall. Adhesion represents a necessary early step in bacterial infection and specific inhibition of this process represents a valuable alternative pathway to antibiotic treatments, as such anti-adhesive drugs are non-intrusive and are therefore unlikely to induce bacterial resistance. The currently available anti-adhesives with the highest affinities for FimH still feature affinities in the nanomolar range. A prerequisite to develop higher-affinity FimH inhibitors is a molecular understanding of the FimH-inhibitor complex formation. The latest insights in the formation process are achieved by combining several molecular simulation and traditional experimental techniques. This review summarizes how molecular simulation contributed to the current knowledge of the molecular function of FimH and the importance of dynamics in the inhibitor binding process, and highlights the importance of the incorporation of dynamical aspects in (future) drug-design studies.
Collapse
Affiliation(s)
- Eva-Maria Krammer
- Unite de Glycobiologie Structurale et Fonctionnelle, UMR 8576 of the Centre National de la Recherche Scientifique and the University of Lille, 50 Avenue de Halley, 59658 Villeneuve d'Ascq, France.
| | - Jerome de Ruyck
- Unite de Glycobiologie Structurale et Fonctionnelle, UMR 8576 of the Centre National de la Recherche Scientifique and the University of Lille, 50 Avenue de Halley, 59658 Villeneuve d'Ascq, France.
| | - Goedele Roos
- Unite de Glycobiologie Structurale et Fonctionnelle, UMR 8576 of the Centre National de la Recherche Scientifique and the University of Lille, 50 Avenue de Halley, 59658 Villeneuve d'Ascq, France.
| | - Julie Bouckaert
- Unite de Glycobiologie Structurale et Fonctionnelle, UMR 8576 of the Centre National de la Recherche Scientifique and the University of Lille, 50 Avenue de Halley, 59658 Villeneuve d'Ascq, France.
| | - Marc F Lensink
- Unite de Glycobiologie Structurale et Fonctionnelle, UMR 8576 of the Centre National de la Recherche Scientifique and the University of Lille, 50 Avenue de Halley, 59658 Villeneuve d'Ascq, France.
| |
Collapse
|
11
|
Sivignon A, Bouckaert J, Bernard J, Gouin SG, Barnich N. The potential of FimH as a novel therapeutic target for the treatment of Crohn’s disease. Expert Opin Ther Targets 2017; 21:837-847. [DOI: 10.1080/14728222.2017.1363184] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Adeline Sivignon
- M2iSH, UMR 1071 Inserm, INRA USC-2018, Institut Universitaire Technologique, Université Clermont Auvergne, Clermont-Ferrand 63001, France
| | - Julie Bouckaert
- Univ. Lille, CNRS, UMR 8576 – UGSF – Unité de Glycobiologie Structurale et Fonctionnelle, 59000 Lille, France
| | - Julien Bernard
- Université de Lyon, Lyon, France ; INSA-Lyon, Ingénierie des Matériaux Polymères (IMP), Villeurbanne, France ; CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Villeurbanne, France
- INSA-Lyon, IMP, Villeurbanne, France
- UMR 5223, Ingénierie des Matériaux Polymères, CNRS, Villeurbanne, France
| | - Sebastien G. Gouin
- CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, LUNAM Université, Nantes Cedex 3, France
| | - Nicolas Barnich
- M2iSH, UMR 1071 Inserm, INRA USC-2018, Institut Universitaire Technologique, Université Clermont Auvergne, Clermont-Ferrand 63001, France
| |
Collapse
|
12
|
Touaibia M, Krammer EM, Shiao TC, Yamakawa N, Wang Q, Glinschert A, Papadopoulos A, Mousavifar L, Maes E, Oscarson S, Vergoten G, Lensink MF, Roy R, Bouckaert J. Sites for Dynamic Protein-Carbohydrate Interactions of O- and C-Linked Mannosides on the E. coli FimH Adhesin. Molecules 2017; 22:molecules22071101. [PMID: 28671638 PMCID: PMC6152123 DOI: 10.3390/molecules22071101] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 06/25/2017] [Accepted: 06/28/2017] [Indexed: 01/28/2023] Open
Abstract
Antagonists of the Escherichia coli type-1 fimbrial adhesin FimH are recognized as attractive alternatives for antibiotic therapies and prophylaxes against acute and recurrent bacterial infections. In this study α-d-mannopyranosides O- or C-linked with an alkyl, alkene, alkyne, thioalkyl, amide, or sulfonamide were investigated to fit a hydrophobic substituent with up to two aryl groups within the tyrosine gate emerging from the mannose-binding pocket of FimH. The results were summarized into a set of structure-activity relationships to be used in FimH-targeted inhibitor design: alkene linkers gave an improved affinity and inhibitory potential, because of their relative flexibility combined with a favourable interaction with isoleucine-52 located in the middle of the tyrosine gate. Of particular interest is a C-linked mannoside, alkene-linked to an ortho-substituted biphenyl that has an affinity similar to its O-mannosidic analog but superior to its para-substituted analog. Docking of its high-resolution NMR solution structure to the FimH adhesin indicated that its ultimate, ortho-placed phenyl ring is able to interact with isoleucine-13, located in the clamp loop that undergoes conformational changes under shear force exerted on the bacteria. Molecular dynamics simulations confirmed that a subpopulation of the C-mannoside conformers is able to interact in this secondary binding site of FimH.
Collapse
Affiliation(s)
- Mohamed Touaibia
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P. O. Box 8888, Succ. Centre-ville, Montréal, QC H3C 3P8, Canada.
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB E1A 3E9, Canada.
| | - Eva-Maria Krammer
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 du CNRS, Université de Lille, F-59000 Lille, France.
| | - Tze C Shiao
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P. O. Box 8888, Succ. Centre-ville, Montréal, QC H3C 3P8, Canada.
| | - Nao Yamakawa
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 du CNRS, Université de Lille, F-59000 Lille, France.
| | - Qingan Wang
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P. O. Box 8888, Succ. Centre-ville, Montréal, QC H3C 3P8, Canada.
| | - Anja Glinschert
- Center for Synthesis and Chemical Biology (CSCB), University College Dublin, Belfield, Dublin 4, Ireland.
| | - Alex Papadopoulos
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P. O. Box 8888, Succ. Centre-ville, Montréal, QC H3C 3P8, Canada.
| | - Leila Mousavifar
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P. O. Box 8888, Succ. Centre-ville, Montréal, QC H3C 3P8, Canada.
| | - Emmanuel Maes
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 du CNRS, Université de Lille, F-59000 Lille, France.
| | - Stefan Oscarson
- Center for Synthesis and Chemical Biology (CSCB), University College Dublin, Belfield, Dublin 4, Ireland.
| | - Gerard Vergoten
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 du CNRS, Université de Lille, F-59000 Lille, France.
| | - Marc F Lensink
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 du CNRS, Université de Lille, F-59000 Lille, France.
| | - René Roy
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P. O. Box 8888, Succ. Centre-ville, Montréal, QC H3C 3P8, Canada.
| | - Julie Bouckaert
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 du CNRS, Université de Lille, F-59000 Lille, France.
| |
Collapse
|
13
|
Mydock-McGrane LK, Hannan TJ, Janetka JW. Rational design strategies for FimH antagonists: new drugs on the horizon for urinary tract infection and Crohn's disease. Expert Opin Drug Discov 2017; 12:711-731. [PMID: 28506090 DOI: 10.1080/17460441.2017.1331216] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION The bacterial adhesin FimH is a virulence factor and an attractive therapeutic target for urinary tract infection (UTI) and Crohn's Disease (CD). Located on type 1 pili of uropathogenic E. coli (UPEC), the FimH adhesin plays an integral role in the pathogenesis of UPEC. Recent efforts have culminated in the development of small-molecule mannoside FimH antagonists that target the mannose-binding lectin domain of FimH, inhibiting its function and preventing UPEC from binding mannosylated host cells in the bladder, thereby circumventing infection. Areas covered: The authors describe the structure-guided design of mannoside ligands, and review the structural biology of the FimH lectin domain. Additionally, they discuss the lead optimization of mannosides for therapeutic application in UTI and CD, and describe various assays used to measure mannoside potency in vitro and mouse models used to determine efficacy in vivo. Expert opinion: To date, mannoside optimization has led to a diverse set of small-molecule FimH antagonists with oral bioavailability. With clinical trials already initiated in CD and on the horizon for UTI, it is the authors, opinion that mannosides will be a 'first-in-class' treatment strategy for UTI and CD, and will pave the way for treatment of other Gram-negative bacterial infections.
Collapse
Affiliation(s)
| | | | - James W Janetka
- b Department of Biochemistry and Molecular Biophysics , Washington University School of Medicine , Saint Louis , MO , USA
| |
Collapse
|
14
|
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.
Collapse
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
| |
Collapse
|
15
|
Al-Mughaid H, Al-Zoubi RM, Khazaaleh M, Grindley TB. Assembly and inhibitory activity of monovalent mannosides terminated with aromatic methyl esters: The effect of naphthyl groups. Carbohydr Res 2017; 446-447:76-84. [PMID: 28549256 DOI: 10.1016/j.carres.2017.03.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 10/19/2022]
Abstract
A series of monovalent α-D-mannoside ligands terminated with aromatic methyl esters have been synthesized in excellent yields using the Cu(I) catalyzed azide-alkyne 1,3-dipolar cycloaddition ("click chemistry"). These mannosides were designed to have a unique aglycone moiety (tail) that combines a triazole ring attached to aromatic methyl esters via a six carbon alkyl chain. The mannose unit of these ligands was linked at the ortho, meta, and para positions of substituted methyl benzoates and 1-, 3-, and 6-substituted methyl 2-napthaoates. In hemagglutination assays, ligands (32A-38A) showed better inhibitory activities than the standard inhibitor, methyl α-D-mannopyranoside. Overall, the naphthyl-based mannoside ligand (37A) showed the best activity and therefore merits further development.
Collapse
Affiliation(s)
- Hussein Al-Mughaid
- Department of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan; Department of Chemistry, Dalhousie University, Halifax, NS, B3H 4J3, Canada.
| | - Raed M Al-Zoubi
- Department of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan
| | - Maha Khazaaleh
- Department of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan
| | - T Bruce Grindley
- Department of Chemistry, Dalhousie University, Halifax, NS, B3H 4J3, Canada.
| |
Collapse
|
16
|
Brument S, Cheneau C, Brissonnet Y, Deniaud D, Halary F, Gouin SG. Polymeric mannosides prevent DC-SIGN-mediated cell-infection by cytomegalovirus. Org Biomol Chem 2017; 15:7660-7671. [DOI: 10.1039/c7ob01569k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dextrans coated with triazolylheptylmannoside ligands block human cytomegalovirus trans-infection at picomolar polymer concentrations.
Collapse
Affiliation(s)
- S. Brument
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| | - C. Cheneau
- Centre de Recherche en Transplantation et Immunologie UMR 1064
- INSERM
- Université de Nantes
- Nantes
- France
| | - Y. Brissonnet
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| | - D. Deniaud
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| | - F. Halary
- Centre de Recherche en Transplantation et Immunologie UMR 1064
- INSERM
- Université de Nantes
- Nantes
- France
| | - S. G. Gouin
- LUNAM Université
- CEISAM
- Chimie Et Interdisciplinarité
- Synthèse
- Analyse
| |
Collapse
|
17
|
|
18
|
Sunkari YK, Alam F, Kandiyal PS, Aloysius S, Ampapathi RS, Chakraborty TK. Influence of Linker Length on Conformational Preferences of Glycosylated Sugar Amino Acid Foldamers. Chembiochem 2016; 17:1839-1844. [DOI: 10.1002/cbic.201600386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Yashoda Krishna Sunkari
- Department of Organic Chemistry; Indian Institute of Science, CV Raman Road; Bengaluru 560012 India
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road; Lucknow 226031 India
| | - Faiyaz Alam
- Centre for Nuclear Magnetic Resonance; SAIF; CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road; Lucknow 226031 India
| | - Pancham Singh Kandiyal
- Centre for Nuclear Magnetic Resonance; SAIF; CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road; Lucknow 226031 India
| | - Siriwardena Aloysius
- Laboratoire des Glucides (UMR 6912); CNRS-FRE-3517; Universit de Picardie Jules Verne, 33, Rue St Leu, Faculte des Sciences; Amiens 80039 France
| | - Ravi Sankar Ampapathi
- Centre for Nuclear Magnetic Resonance; SAIF; CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road; Lucknow 226031 India
| | - Tushar Kanti Chakraborty
- Department of Organic Chemistry; Indian Institute of Science, CV Raman Road; Bengaluru 560012 India
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road; Lucknow 226031 India
| |
Collapse
|
19
|
Brannon JR, Hadjifrangiskou M. The arsenal of pathogens and antivirulence therapeutic strategies for disarming them. Drug Des Devel Ther 2016; 10:1795-806. [PMID: 27313446 PMCID: PMC4890686 DOI: 10.2147/dddt.s98939] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Pathogens deploy an arsenal of virulence factors (VFs) to establish themselves within their infectious niche. The discovery of antimicrobial compounds and their development into therapeutics has made a monumental impact on human and microbial populations. Although humans have used antimicrobials for medicinal and agricultural purposes, microorganism populations have developed and shared resistance mechanisms to persevere in the face of classical antimicrobials. However, a positive substitute is antivirulence therapy; antivirulence therapeutics prevent or interrupt an infection by counteracting a pathogen's VFs. Their application can reduce the use of broad-spectrum antimicrobials and dampen the frequency with which resistant strains emerge. Here, we summarize the contribution of VFs to various acute and chronic infections. In correspondence with this, we provide an overview of the research and development of antivirulence strategies.
Collapse
Affiliation(s)
- John R Brannon
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Maria Hadjifrangiskou
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Urologic Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
| |
Collapse
|
20
|
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.
Collapse
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.
| |
Collapse
|
21
|
Differentiation of Crohn's Disease-Associated Isolates from Other Pathogenic Escherichia coli by Fimbrial Adhesion under Shear Force. BIOLOGY 2016; 5:biology5020014. [PMID: 27043645 PMCID: PMC4929528 DOI: 10.3390/biology5020014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/22/2016] [Accepted: 03/24/2016] [Indexed: 12/20/2022]
Abstract
Shear force exerted on uropathogenic Escherichia coli adhering to surfaces makes type-1 fimbriae stretch out like springs to catch on to mannosidic receptors. This mechanism is initiated by a disruption of the quaternary interactions between the lectin and the pilin of the two-domain FimH adhesin and transduces allosterically to the mannose-binding pocket of FimH to increase its affinity. Mannose-specific adhesion of 14 E. coli pathovars was measured under flow, using surface plasmon resonance detection on functionalized graphene-coated gold interfaces. Increasing the shear had important differential consequences on bacterial adhesion. Adherent-invasive E. coli, isolated from the feces and biopsies of Crohn’s disease patients, consistently changed their adhesion behavior less under shear and displayed lower SPR signals, compared to E. coli opportunistically infecting the urinary tract, intestines or loci of knee and hip prostheses. We exemplified this further with the extreme behaviors of the reference strains UTI89 and LF82. Whereas their FimA major pilins have identical sequences, FimH of LF82 E. coli is marked by the Thr158Pro mutation. Positioned in the inter-domain region known to carry hot spots of mutations in E. coli pathotypes, residue 158 is indicated to play a structural role in the allosteric regulation of type-1 fimbriae-mediated bacterial adhesion.
Collapse
|
22
|
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.
Collapse
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
| |
Collapse
|