Spatially well-defined carbohydrate nanoplatforms: synthesis, characterization and lectin interaction study

Area of Science:

• Carbohydrate chemistry
• Supramolecular chemistry
• Biophysical chemistry

Background:

• Lectins are proteins that bind carbohydrates, playing roles in biological processes.
• Understanding carbohydrate-lectin interactions is crucial for drug development and diagnostics.
• The spatial arrangement of carbohydrates can significantly influence binding affinity.

Purpose of the Study:

• To synthesize and characterize novel dodecasubstituted carbohydrate nanoplatforms.
• To investigate the impact of carbohydrate spatial distribution on lectin binding.
• To compare the binding affinities of these nanoplatforms with reference compounds.

Main Methods:

• Preparation of molecular Borromean rings and dodecaamine cages functionalized with carbohydrates.
• Quartz crystal microbalance (QCM) technology for characterizing binding affinities.
• Comparative analysis with monovalent carbohydrates and dodecaglycosylated fullerenes.

Main Results:

• Successful synthesis of two distinct dodecasubstituted carbohydrate nanoplatforms.
• Quantification of binding affinities between nanoplatforms and lectins using QCM.
• Demonstration of differential binding affinities influenced by the spatial presentation of carbohydrates.

Conclusions:

• The spatial distribution of carbohydrates on nanoplatforms significantly impacts their interaction with lectins.
• Novel nanoplatforms provide valuable tools for studying multivalent carbohydrate-lectin interactions.
• These findings contribute to the design of carbohydrate-based therapeutics and diagnostics.