P-selectin is expressed on activated platelets as well as on endothelial cells.E-selectin is only expressed on endothelial cells.

• P-选择素在激活的血小板和内皮细胞表达，而E-选择素仅在血管内皮细胞表达，两者共同介导白细胞、血小板与内皮细胞的黏附。