Cited by 46Carbohydrate Chemistry and SynthesisGlycosylation and Glycoproteins ResearchDNA and Nucleic Acid Chemistry

Dynamic Cooperative Glycan Assembly Blocks the Binding of Bacterial Lectins to Epithelial Cells

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Machida, Takuya, Novoa, Alexandre, Gillon, Émilie, Zheng, Shuangshuang, Claudinon, Julie, Eierhoff, Thorsten, Imberty, Anne, Römer, Winfried +1 more·2017·Angewandte Chemie International Edition

Abstract

Pathogens frequently rely on lectins for adhesion and cellular entry into the host. Since these interactions typically result from multimeric binding of lectins to cell‐surface glycans, novel therapeutic strategies are being developed with the use of glycomimetics as competitors of such interactions. Herein we study the benefit of nucleic acid based oligomeric assemblies with PNA–fucose conjugates. We demonstrate that the interactions of a lectin with epithelial cells can be inhibited with conjugates that do not form stable assemblies in solution but benefit from cooperativity between ligand–protein interactions and PNA hybridization to achieve high affinity. A dynamic dimeric assembly fully blocked the binding of the fucose‐binding lectin BambL of Burkholderia ambifaria, a pathogenic bacterium, to epithelial cells with an efficiency of more than 700‐fold compared to l‐fucose.

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Crossref · 10.1002/anie.201700813

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  • The dissociation constant (KD) of 4-mer PNA is in the 3-15 μM range with dissociation speed (koff ∼ 0.3-1.5 s-1).

    “Previous studies38 indicated that the dissociation constant (KD) of 4-mer PNA is in the 3–15 μM range with dissociation speed (koff ∼ 0.3–1.5 s–1).”

    From Sequencing of <scp>d</scp>/<scp>l</scp>-DNA and XNA by Templated-Synthesis (2025) · cites this paper as [38]

    The Results and Discussion section reports KD values of 13 and 3.8 μM for two self-complementary 4-mer PNA sequences, supporting the stated 3–15 μM range. It does not report a koff of 0.3–1.5 s⁻¹ for those duplexes; the off-rates it gives are for a fucose adduct and a lectin-bound assembly. (LLM, conf=0.88)

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Authors
Machida, T., Novoa, A., Gillon, É., Zheng, S., Claudinon, J., Eierhoff, T., Imberty, A., Römer, W., & Winssinger, N.
Affiliations
  • University of Geneva (CH)
  • Centre National de la Recherche Scientifique (FR)
  • University of Freiburg (DE)
Corresponding author
  • Imberty, Anne
  • Römer, Winfried
  • Winssinger, Nicolas
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2017-05-15
Volume
56
Issue
24
Pages
6762-6766
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2616622385
Cited by
45
References
30
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 8 · 2021: 7 · 2020: 7 · 2019: 6 · 2018: 4 · 2017: 5
FWCI
2.51
Type
journal article
Language
en
Open access
Locations
  • Angewandte Chemie International Edition (publishedVersion)
  • PubMed (publishedVersion)
  • Archive ouverte UNIGE (University of Geneva) (acceptedVersion, other-oa)
  • HAL (submittedVersion, other-oa)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
Funders
  • Agence Nationale de la Recherche (ANR-11-LABX-0003-01, SYNB-0002-02)
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • European Research Council (ERC-2011-StG 282105)
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Carbohydrate Chemistry and Synthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
carbohydrate mimetics, peptide nucleic acid, cooperative binding, lectin binding inhibition, fucose-binding lectin, bacterial adhesion, epithelial cells
MeSH terms
Bacterial Proteins, Epithelial Cells, Humans, Polysaccharides, Protein Binding, Burkholderia, Peptide Nucleic Acids, Biomimetics, Lectins, Ralstonia solanacearum, Cell Line, Tumor

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