Molecular Recogniton of Polysaccharide-Coated Liposomes. Importance of Sialic Acid Moiety on Liposomal Surface
作者:Junzo Sunamoto、Kouichi Sakai、Toshinori Sato、Hiroki Kondo
DOI:10.1246/cl.1988.1781
日期:1988.10.5
Conjugation of sialic acid to cholesterol-substituted polysaccharides has been carried out. Liposomes, which are coated with sialic acid-modified polysaccharide, were significantly aggregated by sialic acid-specific lectin, and inhibition of phagocytosis of the liposomes by phagocytic cells was observed. Appropriate treatment of the liposomes with a neuraminidase made the efficient removal of sialic acid from the polysaccharide on the liposomal surface.
已将唾液酸与胆固醇取代的多糖结合。涂覆有唾液酸修饰多糖的脂质体被唾液酸特异性凝集素显著聚集,并观察到吞噬细胞对脂质体的吞噬作用受到抑制。对脂质体进行适当的神经氨酸酶处理,可以有效去除脂质体表面多糖上的唾液酸。