C-Type Lectins and Sialyl Lewis X Oligosaccharides Versatile Roles in Cell–Cell Interaction

Carbohydrates are major components of the outer surface of mammalian cells and these carbohydrates are very often characteristic of cell-types and developmental stages ([Feizi 1985][1]; [Hakomori 1985][2]). One of such cell type–specific carbohydrates is sialyl Lewis X, NeuNAcα2→3Galβ1→4(Fuc