An object of the present invention is to provide an albumin-sugar chain complex bound with a number of sugar chains sufficient for obtaining a sugar chain clustering effect while also being able to exist comparatively stably in the body. The present invention provides an albumin-sugar chain complex having five or more molecules of an asparagine-linked sugar chain bound per molecule of albumin; a carrier for selectively delivering a functional molecule to a target tissue in the body that contains the aforementioned albumin-sugar chain complex; and a bioimaging probe having the aforementioned albumin-sugar chain complex as an active ingredient thereof that is administered into the body of an animal.
本发明的目的是提供一种白蛋白-糖链复合物,其结合的糖链数量足以获得糖链集群效应,同时还能相对稳定地存在于体内。本发明提供了一种白蛋白-糖链复合物,每一个白蛋白分子结合有五个或五个以上分子的天冬酰胺连接糖链;一种载体,用于将功能分子选择性地输送到体内的靶组织,该载体含有上述白蛋白-糖链复合物;以及一种
生物成像探针,其活性成分为上述白蛋白-糖链复合物,该探针被施用到动物体内。