Targeting C-type lectin receptors with multivalent carbohydrate ligands

Area of Science:

• Immunology and Glycoscience
• Innate immunity
• Carbohydrate-protein interactions

Background:

• C-type lectin receptors (CLRs) are crucial pattern recognition receptors (PRRs) in innate immunity.
• CLRs bind pathogen-associated molecular patterns (PAMPs) and self-antigens via their carbohydrate-recognition domain (CRD).
• Low-affinity CLR-carbohydrate interactions are enhanced by multivalent ligand presentation.

Purpose of the Study:

• To review multivalent strategies for targeting CLR-expressing cells.
• To highlight CLR targeting applications in cell-specific drug delivery.
• To emphasize CLR targeting for modulating immune responses, particularly in antigen-presenting cells.

Main Methods:

• Discussion of various multivalent CLR ligand presentation approaches.
• Review of glyconanoparticles, glycodendrimers, and glycoliposomes for CLR targeting.
• Analysis of CLR engagement in endocytosis and intracellular signaling.

Main Results:

• Multivalency is effective for targeting CLR-expressing cells like liver ASGPR and dendritic cell DC-SIGN.
• CLR targeting facilitates cell-specific drug delivery and functional modulation.
• Successful use of glyco-nanomaterials for CLR-specific targeting.

Conclusions:

• Multivalent CLR targeting is a viable strategy for precise drug delivery.
• Targeting CLRs can modulate cellular functions and immune responses.
• Glyco-nanomaterials are effective tools for CLR-mediated targeting and therapeutic applications.