Syntheses and Evaluation of Biantennary Oligosaccharide Ligands Mimicking Sialyl Lewis X.
作者:Masahiro SAKAGAMI、Kazutoshi HORIE、Kunio HIGASHI、Harutami YAMADA、Hiroshi HAMANA
DOI:10.1248/cpb.47.1237
日期:——
Sialyl Lewis X (1) is known to be a ligand of the cell adhesion molecule E-selectin. We have synthesized several biantennary glycoside-terminated ligands mimicking sialyl Lewis X (1), and evaluated their binding activity to E-selectin using HL-60 cells expressing sialyl Lewis X epitope and human umbilical vein endothelial cells (HUVECs). These compounds were found to possess moderate binding activities
唾液酸路易斯X(1)是细胞粘附分子E-选择素的配体。我们已经合成了几种模拟唾液酸路易斯X(1)的双触角糖苷末端的配体,并使用表达唾液酸路易斯X表位和人脐静脉内皮细胞(HUVEC)的HL-60细胞评估了它们与E-选择素的结合活性。发现这些化合物具有对E-选择蛋白的中等结合活性。其中,没有唾液酸羧酸酯基的二岩藻糖苷类似物(8)比具有唾液酸-半乳糖残基和岩藻糖残基的2(IC50,8:4.7mM,2:11.7mM)具有更高的活性。此外,在角叉菜胶诱导的大鼠体内胸膜炎模型中,发现8可以减少炎症病变处的中性粒细胞浸润。