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Functions of cell surface galectin-glycoprotein lattices Rabinovich GA; Toscano MA; Jackson SS; Vasta GRCurr Opin Struct Biol 2007[Oct]; 17 (5): 513-20Programmed remodeling of cell surface glycans by the sequential action of specific glycosyltransferases can control biological processes by generating or masking ligands for endogenous lectins. Galectins, a family of animal lectins with affinity for beta-galactosides, can form multivalent complexes with cell surface glycoconjugates and deliver a variety of intracellular signals to modulate cell activation, differentiation, and survival. Recent efforts involving genetic or biochemical manipulation of O-glycosylation and N-glycosylation pathways, as well as blockade of the synthesis of endogenous galectins, have illuminated essential roles for galectin-glycoprotein lattices in the control of biological processes including receptor turnover and endocytosis, host-pathogen interactions, and immune cell activation and homeostasis.|Animals[MESH]|B-Lymphocytes/immunology/physiology[MESH]|Cell Membrane/*chemistry/physiology[MESH]|Galectins/*chemistry/physiology[MESH]|Host-Pathogen Interactions[MESH]|Humans[MESH]|Immunity, Innate[MESH]|Membrane Glycoproteins/*chemistry/physiology[MESH]|Models, Molecular[MESH]|Multiprotein Complexes[MESH]|T-Lymphocytes/immunology/physiology[MESH] |
