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Bioinformatics Resources for the Study of Glycan-Mediated Protein Interactions
Published on: January 20, 2022
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Catanionic Vesicles as a Facile Scaffold to Display Natural N-Glycan Ligands for Probing Multivalent
Thomas C Donahue1, Guanghui Zong1, Chong Ou1
1Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland20742, United States.
Bioconjugate Chemistry
|January 16, 2023
Summary
Catanionic vesicles offer a stable nanoparticle platform for displaying N-glycans, enhancing lectin binding through multivalent interactions. This breakthrough enables potential applications in drug delivery and disease intervention.
Area of Science:
- Biochemistry and Biophysics
- Materials Science
- Glycoscience
Background:
- Multivalent interactions are crucial for protein-carbohydrate recognition.
- Traditional liposomes for glycan presentation lack stability in biological environments.
Purpose of the Study:
- To develop a stable nanoparticle scaffold for multivalent N-glycan display.
- To investigate the binding affinities of N-glycan-coated vesicles to lectins.
Main Methods:
- Utilized catanionic vesicles for stable N-glycan display.
- Optimized hydrophobic insertion of lipidated N-glycans.
- Employed enzyme-linked competitive lectin-binding assays.
Main Results:
- N-glycan-coated vesicles showed enhanced lectin binding affinity (Sambucus nigra agglutinin, concanavalin A, human galectin-3).
- Optimal N-glycan density varied for different lectins and glycan types.
- Observed macromolecular crowding effects on lectin binding.
Conclusions:
- Catanionic vesicles provide a stable and versatile platform for multivalent glycan presentation.
- These vesicles demonstrate potential as drug delivery vehicles and inhibitors of protein-carbohydrate interactions.
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