Fucose-specific lectin and glycan-binding protein

Fucose-specific lectins and glycan-binding proteins constitute a functional class of proteins characterized by their ability to selectively recognize and bind L-fucose residues on glycoconjugates. This group includes human receptors such as the selectin family (E-, P-, and L-selectin) and DC-SIGN, as well as various bacterial and fungal lectins like LecB from Pseudomonas aeruginosa. These proteins play pivotal roles in physiological processes including leukocyte trafficking, immune cell signaling, and host-pathogen interactions. In disease states, they are often exploited by pathogens for tissue adhesion and biofilm formation, or by cancer cells to facilitate metastasis through selectin-mediated docking to the vascular endothelium. Consequently, they are significant therapeutic targets; for instance, selectin inhibitors like crizanlizumab are used to manage vaso-occlusive crises in sickle cell disease by blocking fucose-mediated cell adhesion. Additionally, fucose-specific lectins are essential diagnostic tools, used to identify aberrantly fucosylated proteins like AFP-L3, which serves as a specific biomarker for hepatocellular carcinoma.

Other names

Fucose-specific lectins and glycan-binding proteinsFucose-binding proteinFucophilic lectinF-type lectinFucose-binding lectinFucose-specific glycan-binding protein

Competitive inhibition of fucose-mediated glycan binding to prevent cell adhesion, leukocyte recruitment, and pathogen attachment.