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Mannerstedt K, Mishra NK, Engholm E, Lundh M, Madsen CS, Pedersen PJ, Le-Huu P, Pedersen SL, Buch-Månson N, Borgström B, Brimert T, Fink LN, Fosgerau K, Vrang N, Jensen KJ. An Aldehyde Responsive, Cleavable Linker for Glucose Responsive Insulins. Chemistry 2021; 27:3166-3176. [PMID: 33169429 DOI: 10.1002/chem.202004878] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Indexed: 12/30/2022]
Abstract
A glucose responsive insulin (GRI) that responds to changes in blood glucose concentrations has remained an elusive goal. Here we describe the development of glucose cleavable linkers based on hydrazone and thiazolidine structures. We developed linkers with low levels of spontaneous hydrolysis but increased level of hydrolysis with rising concentrations of glucose, which demonstrated their glucose responsiveness in vitro. Lipidated hydrazones and thiazolidines were conjugated to the LysB29 side-chain of HI by pH-controlled acylations providing GRIs with glucose responsiveness confirmed in vitro for thiazolidines. Clamp studies showed increased glucose infusion at hyperglycemic conditions for one GRI indicative of a true glucose response. The glucose responsive cleavable linker in these GRIs allow changes in glucose levels to drive the release of active insulin from a circulating depot. We have demonstrated an unprecedented, chemically responsive linker concept for biopharmaceuticals.
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Affiliation(s)
| | - Narendra Kumar Mishra
- Gubra ApS, Hørsholm Kongevej, 11B, 2970, Hørsholm, Denmark.,Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Ebbe Engholm
- Gubra ApS, Hørsholm Kongevej, 11B, 2970, Hørsholm, Denmark.,Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Morten Lundh
- Gubra ApS, Hørsholm Kongevej, 11B, 2970, Hørsholm, Denmark
| | | | | | - Priska Le-Huu
- Gubra ApS, Hørsholm Kongevej, 11B, 2970, Hørsholm, Denmark
| | | | | | - Björn Borgström
- Red Glead Discovery AB, Scheelevägen 17, 22363, Lund, Sweden
| | - Thomas Brimert
- Red Glead Discovery AB, Scheelevägen 17, 22363, Lund, Sweden
| | - Lisbeth N Fink
- Gubra ApS, Hørsholm Kongevej, 11B, 2970, Hørsholm, Denmark
| | - Keld Fosgerau
- Gubra ApS, Hørsholm Kongevej, 11B, 2970, Hørsholm, Denmark
| | - Niels Vrang
- Gubra ApS, Hørsholm Kongevej, 11B, 2970, Hørsholm, Denmark
| | - Knud J Jensen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
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Wismann P, Pedersen SL, Hansen G, Mannerstedt K, Pedersen PJ, Jeppesen PB, Vrang N, Fosgerau K, Jelsing J. Novel GLP-1/GLP-2 co-agonists display marked effects on gut volume and improves glycemic control in mice. Physiol Behav 2018. [PMID: 29540315 DOI: 10.1016/j.physbeh.2018.03.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AIM Analogues of several gastrointestinal peptide hormones have been developed into effective medicines for treatment of diseases such as type 2 diabetes mellitus (T2DM), obesity and short bowel syndrome (SBS). In this study, we aimed to explore whether the combination of glucagon-like peptide-1 (GLP-1) and glucagon-like peptide-2 (GLP-2) into a potent co-agonist could provide additional benefits compared to existing monotherapies. METHODS A short-acting (GUB09-123) and a half-life extended (GUB09-145) GLP-1/GLP-2 co-agonist were generated using solid-phase peptide synthesis and tested for effects on food intake, body weight, glucose homeostasis, and gut proliferation in lean mice and in diabetic db/db mice. RESULTS Sub-chronic administration of GUB09-123 to lean mice significantly reduced food intake, improved glucose tolerance, and increased gut volume, superior to monotherapy with the GLP-2 analogue teduglutide. Chronic administration of GUB09-123 to diabetic mice significantly improved glycemic control and showed persistent effects on gastric emptying, superior to monotherapy with the GLP-1 analogue liraglutide. Due to the short-acting nature of the molecule, no effects on body weight were observed, whereas a marked and robust intestinotrophic effect on mainly the small intestine volume and surface area was obtained. In contrast to GUB09-123, sub-chronic administration of a half-life extended GUB09-145 to lean mice caused marked dose-dependent effects on body weight while maintaining its potent intestinotrophic effect. CONCLUSION Our data demonstrate that the GLP-1/GLP-2 co-agonists have effects on gut morphometry, showing a marked increase in intestinal volume and mucosal surface area. Furthermore, effects on glucose tolerance and long-term glycemic control are evident. Effects on body weight and gastric emptying are also observed depending on the pharmacokinetic properties of the molecule. We suggest that this novel co-agonistic approach could exemplify a novel concept for treatment of T2DM or SBS.
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Affiliation(s)
| | | | - Gitte Hansen
- Gubra ApS, Hørsholm Kongevej 11B, Hørsholm, DK-2970, Denmark
| | | | | | - Palle B Jeppesen
- Rigshospitalet CA-2121, Blegdamsvej 9, Copenhagen DK-2100, Denmark
| | - Niels Vrang
- Gubra ApS, Hørsholm Kongevej 11B, Hørsholm, DK-2970, Denmark
| | - Keld Fosgerau
- Gubra ApS, Hørsholm Kongevej 11B, Hørsholm, DK-2970, Denmark
| | - Jacob Jelsing
- Gubra ApS, Hørsholm Kongevej 11B, Hørsholm, DK-2970, Denmark
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van Witteloostuijn SB, Mannerstedt K, Wismann P, Bech EM, Thygesen MB, Vrang N, Jelsing J, Jensen KJ, Pedersen SL. Neoglycolipids for Prolonging the Effects of Peptides: Self-Assembling Glucagon-like Peptide 1 Analogues with Albumin Binding Properties and Potent in Vivo Efficacy. Mol Pharm 2016; 14:193-205. [DOI: 10.1021/acs.molpharmaceut.6b00787] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Søren B. van Witteloostuijn
- Gubra ApS, Hørsholm Kongevej
11B, 2970 Hørsholm, Denmark
- Department
of Chemistry, Faculty of Science, University of Copenhagen, Thorvaldsensvej
40, 1871 Frederiksberg
C, Denmark
| | | | - Pernille Wismann
- Gubra ApS, Hørsholm Kongevej
11B, 2970 Hørsholm, Denmark
- Department
of Clinical Medicine, Faculty of Health Science, University of Copenhagen, Blegdamsvej 9, 2100 København Ø, Denmark
| | - Esben M. Bech
- Gubra ApS, Hørsholm Kongevej
11B, 2970 Hørsholm, Denmark
- Department
of Chemistry, Faculty of Science, University of Copenhagen, Thorvaldsensvej
40, 1871 Frederiksberg
C, Denmark
| | - Mikkel B. Thygesen
- Department
of Chemistry, Faculty of Science, University of Copenhagen, Thorvaldsensvej
40, 1871 Frederiksberg
C, Denmark
| | - Niels Vrang
- Gubra ApS, Hørsholm Kongevej
11B, 2970 Hørsholm, Denmark
| | - Jacob Jelsing
- Gubra ApS, Hørsholm Kongevej
11B, 2970 Hørsholm, Denmark
| | - Knud J. Jensen
- Department
of Chemistry, Faculty of Science, University of Copenhagen, Thorvaldsensvej
40, 1871 Frederiksberg
C, Denmark
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Jørgensen R, Batot G, Mannerstedt K, Imberty A, Breton C, Hindsgaul O, Royant A, Palcic MM. Structures of a human blood group glycosyltransferase in complex with a photo-activatable UDP-Gal derivative reveal two different binding conformations. Acta Crystallogr F Struct Biol Commun 2014; 70:1015-21. [PMID: 25084373 DOI: 10.1107/s2053230x1401259x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 05/30/2014] [Indexed: 11/10/2022]
Abstract
Glycosyltransferases (GTs) catalyse the sequential addition of monosaccharides to specific acceptor molecules and play major roles in key biological processes. GTs are classified into two main families depending on the inverted or retained stereochemistry of the glycosidic bond formed during the reaction. While the mechanism of inverting enzymes is well characterized, the precise nature of retaining GTs is still a matter of much debate. In an attempt to clarify this issue, studies were initiated to identify reaction-intermediate states by using a crystallographic approach based on caged substrates. In this paper, two distinct structures of AA(Gly)B, a dual-specificity blood group synthase, are described in complex with a UDP-galactose derivative in which the O6'' atom is protected by a 2-nitrobenzyl group. The distinct conformations of the caged substrate in both structures of the enzyme illustrate the highly dynamic nature of its active site. An attempt was also made to photolyse the caged compound at low temperature, which unfortunately is not possible without damaging the uracil group as well. These results pave the way for kinetic crystallography experiments aiming at trapping and characterizing reaction-intermediate states in the mechanism of enzymatic glycosyl transfer.
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Affiliation(s)
- René Jørgensen
- Department of Microbiology and Infection Control, Statens Serum Institut, 5 Artillerivej, DK-2300 Copenhagen S, Denmark
| | - Gaëlle Batot
- Structural Biology Group, European Synchrotron Radiation Facility, 6 rue Jules Horowitz, F-38043 Grenoble, France
| | - Karin Mannerstedt
- Carlsberg Laboratory, Gamle Carlsberg Vej 10, DK-1799 Copenhagen V, Denmark
| | - Anne Imberty
- CERMAV-CNRS-Université Grenoble Alpes, BP 53, F-38041 Grenoble CEDEX 9, France
| | - Christelle Breton
- CERMAV-CNRS-Université Grenoble Alpes, BP 53, F-38041 Grenoble CEDEX 9, France
| | - Ole Hindsgaul
- Carlsberg Laboratory, Gamle Carlsberg Vej 10, DK-1799 Copenhagen V, Denmark
| | - Antoine Royant
- Structural Biology Group, European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, F-38043 Grenoble CEDEX 9, France
| | - Monica M Palcic
- Carlsberg Laboratory, Gamle Carlsberg Vej 10, DK-1799 Copenhagen V, Denmark
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Adlercreutz D, Yoshimura Y, Mannerstedt K, Wakarchuk WW, Bennett EP, Dovichi NJ, Hindsgaul O, Palcic MM. Thiogalactopyranosides are resistant to hydrolysis by α-galactosidases. Chembiochem 2012; 13:1673-9. [PMID: 22740420 DOI: 10.1002/cbic.201200155] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Indexed: 01/31/2023]
Abstract
Fluorescently tagged glycosides containing terminal α(1→3) and α(1→4)-linked thiogalactopyranosides have been prepared and tested for resistance to hydrolysis by α-galactosidases. Eight fluorescent glycosides containing either galactose or 5-thiogalactose as the terminal sugar were enzymatically synthesized using galactosyltransferases, with lactosyl glycosides as acceptors and UDP-galactose or UDP-5'-thiogalactose, respectively, as donors. The glycosides were incubated with human α-galactosidase A (CAZy family GH27, a retaining glycosidase), Bacteroides fragilis α-1,3-galactosidase (GH110, an inverting glycosidase), or homogenates of MCF-7 human breast cancer cells or NG108-15 rat glioma cells. Substrate hydrolysis was monitored by capillary electrophoresis with fluorescence detection. All compounds containing terminal O-galactose were readily degraded. Their 5-thiogalactose counterparts were resistant to hydrolysis by human α-galactosidase A and the enzymes present in the cell extracts. B. fragilis α-1,3-galactosidase hydrolyzed both thio- and O-galactoside substrates; however, the thiogalactosides were hydrolyzed at only 1-3 % of the rate of O-galactosides. The hydrolytic resistance of 5-thiogalactose was also confirmed by an in vivo study using cells in culture. The results suggest that 5-thiogalactosides may be useful tools for the study of anabolic pathways in cell extracts or in single cells.
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Mannerstedt K, Jansson AM, Weadge J, Hindsgaul O. Small-molecule sensing: a direct enzyme-linked immunosorbent assay for the monosaccharide Kdo. Angew Chem Int Ed Engl 2011; 49:8173-6. [PMID: 20857470 DOI: 10.1002/anie.201003435] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Mannerstedt K, Jansson AM, Weadge J, Hindsgaul O. Small-Molecule Sensing: A Direct Enzyme-Linked Immunosorbent Assay for the Monosaccharide Kdo. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Nakai H, Hachem MA, Petersen BO, Westphal Y, Mannerstedt K, Baumann MJ, Dilokpimol A, Schols HA, Duus JØ, Svensson B. Efficient chemoenzymatic oligosaccharide synthesis by reverse phosphorolysis using cellobiose phosphorylase and cellodextrin phosphorylase from Clostridium thermocellum. Biochimie 2010; 92:1818-26. [PMID: 20678539 DOI: 10.1016/j.biochi.2010.07.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Accepted: 07/22/2010] [Indexed: 11/30/2022]
Abstract
Inverting cellobiose phosphorylase (CtCBP) and cellodextrin phosphorylase (CtCDP) from Clostridium thermocellum ATCC27405 of glycoside hydrolase family 94 catalysed reverse phosphorolysis to produce cellobiose and cellodextrins in 57% and 48% yield from α-d-glucose 1-phosphate as donor with glucose and cellobiose as acceptor, respectively. Use of α-d-glucosyl 1-fluoride as donor increased product yields to 98% for CtCBP and 68% for CtCDP. CtCBP showed broad acceptor specificity forming β-glucosyl disaccharides with β-(1→4)- regioselectivity from five monosaccharides as well as branched β-glucosyl trisaccharides with β-(1→4)-regioselectivity from three (1→6)-linked disaccharides. CtCDP showed strict β-(1→4)-regioselectivity and catalysed linear chain extension of the three β-linked glucosyl disaccharides, cellobiose, sophorose, and laminaribiose, whereas 12 tested monosaccharides were not acceptors. Structure analysis by NMR and ESI-MS confirmed two β-glucosyl oligosaccharide product series to represent novel compounds, i.e. β-D-glucopyranosyl-[(1→4)-β-D-glucopyranosyl](n)-(1→2)-D-glucopyranose, and β-D-glucopyranosyl-[(1→4)-β-D-glucopyranosyl](n)-(1→3)-D-glucopyranose (n = 1-7). Multiple sequence alignment together with a modelled CtCBP structure, obtained using the crystal structure of Cellvibrio gilvus CBP in complex with glucose as a template, indicated differences in the subsite +1 region that elicit the distinct acceptor specificities of CtCBP and CtCDP. Thus Glu636 of CtCBP recognized the C1 hydroxyl of β-glucose at subsite +1, while in CtCDP the presence of Ala800 conferred more space, which allowed accommodation of C1 substituted disaccharide acceptors at the corresponding subsites +1 and +2. Furthermore, CtCBP has a short Glu496-Thr500 loop that permitted the C6 hydroxyl of glucose at subsite +1 to be exposed to solvent, whereas the corresponding longer loop Thr637-Lys648 in CtCDP blocks binding of C6-linked disaccharides as acceptors at subsite +1. High yields in chemoenzymatic synthesis, a novel regioselectivity, and novel oligosaccharides including products of CtCDP catalysed oligosaccharide oligomerisation using α-d-glucosyl 1-fluoride, all together contribute to the formation of an excellent basis for rational engineering of CBP and CDP to produce desired oligosaccharides.
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Affiliation(s)
- Hiroyuki Nakai
- Enzyme and Protein Chemistry, Department of Systems Biology, Technical University of Denmark, Søltofts Plads, Building 224, DK-2800 Kgs. Lyngby, Denmark
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Covarrubias AS, Högbom M, Bergfors T, Carroll P, Mannerstedt K, Oscarson S, Parish T, Jones TA, Mowbray SL. Structural, Biochemical, and In Vivo Investigations of the Threonine Synthase from Mycobacterium tuberculosis. J Mol Biol 2008; 381:622-33. [DOI: 10.1016/j.jmb.2008.05.086] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2008] [Revised: 05/28/2008] [Accepted: 05/30/2008] [Indexed: 11/25/2022]
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Mannerstedt K, Hindsgaul O. Synthesis and photolytic activation of 6''-O-2-nitrobenzyl uridine-5'-diphosphogalactose: a 'caged' UDP-Gal derivative. Carbohydr Res 2008; 343:875-81. [PMID: 18275942 DOI: 10.1016/j.carres.2008.01.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Revised: 01/14/2008] [Accepted: 01/17/2008] [Indexed: 10/22/2022]
Abstract
Placing an 2-nitrobenzyl group on O-6 of the galactosyl residue in uridine-5'-diphosphogalactose (UDP-Gal) gives 6''-O-2-nitrobenzyl-UDP-Gal that is shown to be inactive as a donor substrate for beta-(1-->4)-galactosyltransferase (GalT). On irradiation at 365 nm, the nitrobenzyl group is completely removed yielding native UDP-Gal that then transfers normally to produce the expected betaGal-(1-->4)-betaGlcNAc disaccharidic linkage. 6''-O-2-Nitrobenzyl-UDP-Gal thus fulfils the minimum requirements of a 'caged' UDP-Gal for application in time-resolved crystallographic studies of beta-(1-->4)-GalT.
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Affiliation(s)
- Karin Mannerstedt
- Carlsberg Laboratory, Gamle Carlsberg Vej 10, Valby, Copenhagen, Denmark
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Mannerstedt K, Segerstedt E, Olsson J, Oscarson S. Synthesis of a common tetrasaccharide motif of Haemophilus influenzae LPS inner core structures. Org Biomol Chem 2008; 6:1087-91. [DOI: 10.1039/b717564g] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Abstract
The use of Kdo thioglycosides as glycosyl donors using DMTST, IBr/AgOTf and NIS/AgOTf as promoters has been evaluated. Activation at low temperature allowed to escape the formation of 2,3-glycal byproducts to give glycosides in high yield and with good beta-anomeric selectivity. The use of diethyl ether as solvent and (especially) isopropylidene acetals as protecting groups improved the alpha-anomeric selectivity. NIS/AgOTf as promoter surprisingly yielded the 3-iodo-product via the glycal intermediate.
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Affiliation(s)
- Karin Mannerstedt
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
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Bouckaert J, Mackenzie J, de Paz JL, Chipwaza B, Choudhury D, Zavialov A, Mannerstedt K, Anderson J, Piérard D, Wyns L, Seeberger PH, Oscarson S, De Greve H, Knight SD. The affinity of the FimH fimbrial adhesin is receptor-driven and quasi-independent of Escherichia coli pathotypes. Mol Microbiol 2006; 61:1556-68. [PMID: 16930149 PMCID: PMC1618777 DOI: 10.1111/j.1365-2958.2006.05352.x] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Type-1 fimbriae are important virulence factors for the establishment of Escherichia coli urinary tract infections. Bacterial adhesion to the high-mannosylated uroplakin Ia glycoprotein receptors of bladder epithelium is mediated by the FimH adhesin. Previous studies have attributed differences in mannose-sensitive adhesion phenotypes between faecal and uropathogenic E. coli to sequence variation in the FimH receptor-binding domain. We find that FimH variants from uropathogenic, faecal and enterohaemorrhagic isolates express the same specificities and affinities for high-mannose structures. The only exceptions are FimHs from O157 strains that carry a mutation (Asn135Lys) in the mannose-binding pocket that abolishes all binding. A high-mannose microarray shows that all substructures are bound by FimH and that the largest oligomannose is not necessarily the best binder. Affinity measurements demonstrate a strong preference towards oligomannosides exposing Manalpha1-3Man at their non-reducing end. Binding is further enhanced by the beta1-4-linkage to GlcNAc, where binding is 100-fold better than that of alpha-d-mannose. Manalpha1-3Manbeta1-4GlcNAc, a major oligosaccharide present in the urine of alpha-mannosidosis patients, thus constitutes a well-defined FimH epitope. Differences in affinities for high-mannose structures are at least 10-fold larger than differences in numbers of adherent bacteria between faecal and uropathogenic strains. Our results imply that the carbohydrate expression profile of targeted host tissues and of natural inhibitors in urine, such as Tamm-Horsfall protein, are stronger determinants of adhesion than FimH variation.
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Affiliation(s)
- Julie Bouckaert
- Department of Ultrastructure, Vrije Universiteit Brussel, Flanders Interuniversity Institute for Biotechnology (VIB)Pleinlaan 2, 1050 Brussels, Belgium
| | - Jenny Mackenzie
- Department of Ultrastructure, Vrije Universiteit Brussel, Flanders Interuniversity Institute for Biotechnology (VIB)Pleinlaan 2, 1050 Brussels, Belgium
| | - José L de Paz
- Laboratory for Organic Chemistry, Swiss Federal Institute of Technology (ETH)Wolfgang-Pauli-Str. 10, HCI F315, 8093 Zurich, Switzerland
| | - Beatrice Chipwaza
- Department of Ultrastructure, Vrije Universiteit Brussel, Flanders Interuniversity Institute for Biotechnology (VIB)Pleinlaan 2, 1050 Brussels, Belgium
| | - Devapriya Choudhury
- Department of Ultrastructure, Vrije Universiteit Brussel, Flanders Interuniversity Institute for Biotechnology (VIB)Pleinlaan 2, 1050 Brussels, Belgium
| | - Anton Zavialov
- Department of Molecular Biology, Swedish University of Agricultural Sciences, Uppsala Biomedical CenterPO Box 590, SE-751 24 Uppsala, Sweden
| | - Karin Mannerstedt
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm UniversitySE-10691 Stockholm, Sweden
| | | | - Denis Piérard
- Department of Microbiology, Academisch Ziekenhuis-Vrije Universiteit BrusselLaarbeeklaan 101, 1090 Brussels, Belgium
| | - Lode Wyns
- Department of Ultrastructure, Vrije Universiteit Brussel, Flanders Interuniversity Institute for Biotechnology (VIB)Pleinlaan 2, 1050 Brussels, Belgium
| | - Peter H Seeberger
- Laboratory for Organic Chemistry, Swiss Federal Institute of Technology (ETH)Wolfgang-Pauli-Str. 10, HCI F315, 8093 Zurich, Switzerland
| | - Stefan Oscarson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm UniversitySE-10691 Stockholm, Sweden
| | - Henri De Greve
- Department of Ultrastructure, Vrije Universiteit Brussel, Flanders Interuniversity Institute for Biotechnology (VIB)Pleinlaan 2, 1050 Brussels, Belgium
- *For correspondence. E-mail ; Tel. (+32) 2 629 1844; Fax (+32) 2 629 1988; and E-mail ; Tel (+46) 18 471 4554; Fax (+46) 18 536 971
| | - Stefan D Knight
- Department of Ultrastructure, Vrije Universiteit Brussel, Flanders Interuniversity Institute for Biotechnology (VIB)Pleinlaan 2, 1050 Brussels, Belgium
- *For correspondence. E-mail ; Tel. (+32) 2 629 1844; Fax (+32) 2 629 1988; and E-mail ; Tel (+46) 18 471 4554; Fax (+46) 18 536 971
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Segerstedt E, Mannerstedt K, Johansson M, Oscarson S. Synthesis of the Branched TrisaccharideL‐Glycero‐α‐D‐manno‐heptopyranosyl‐(1 → 3)‐ [β‐D‐glucopyranosyl‐(1 → 4)]‐L‐glycero‐α‐D‐manno‐heptopyranose, Protected to Allow Flexible Access toNeisseriaandHaemophilusLPS Inner Core Structures. J Carbohydr Chem 2004. [DOI: 10.1081/car-200044580] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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