4′-Sulphated Lewis X, Methyl Glycoside

4′-Sulphated Lewis X, methyl glycoside, is a significant molecule in scientific research, particularly in the fields of glycobiology and immunology. This chemical plays a crucial role in mediating cell-cell interactions, particularly those involved in immune responses and inflammation. The sulfated Lewis X antigen, present on the surface of cells, serves as a ligand for selectins, a family of cell adhesion molecules expressed on leukocytes and endothelial cells. Through specific interactions with selectins, such as P-selectin and E-selectin, 4′-sulphated Lewis X facilitates the tethering and rolling of leukocytes along the endothelium during inflammation and immune surveillance processes. Moreover, research has shown that modifications of the Lewis X antigen, such as sulfation at the 4′-position, can modulate the binding affinity and specificity of selectins, thereby influencing the dynamics of cell adhesion and migration. Beyond its role in cellular interactions, 4′-sulphated Lewis X, methyl glycoside, has been utilized as a molecular probe in studies investigating the molecular basis of selectin-mediated adhesion and in the development of strategies targeting selectin-ligand interactions. Additionally, this compound has been employed in the synthesis of glycomimetics and glycans with potential applications in drug delivery, diagnostics, and vaccine development.