Multivalent glycocyclopeptides: conjugation methods and biological applications

Area of Science:

• Carbohydrate Chemistry
• Supramolecular Chemistry
• Glycosciences

Background:

• The cell surface glycocalyx plays crucial roles in biological recognition.
• Synthetic multivalent scaffolds decorated with glycans can mimic the glycocalyx.
• Click chemistry offers efficient conjugation strategies for glycan assembly.

Purpose of the Study:

• To review synthetic strategies for creating multivalent glycocyclopeptides.
• To explore applications in glycosciences, including protein interactions and immunotherapy.
• To summarize conjugation methods for attaching glycans to cyclopeptide scaffolds.

Main Methods:

• Utilizing click chemistry reactions like oxime ligation and copper(I)-catalyzed alkyne-azide cycloaddition.
• Employing stepwise or orthogonal one-pot approaches for glycan conjugation.
• Synthesizing multivalent glycocyclopeptides with varying size, valency, and geometry.

Main Results:

• Demonstrated suitability of various conjugation methods for glycan decoration.
• Enabled the synthesis of diverse multivalent glycocyclopeptides.
• Highlighted the potential of these structures in biological applications.

Conclusions:

• Multivalent glycocyclopeptides are versatile tools in glycosciences.
• Click chemistry facilitates the construction of complex glycan architectures.
• These synthetic glycans show promise for targeting carbohydrate-binding proteins and cancer immunotherapy.