This invention provides compositions and methods for enhancing delivery of drugs and other agents across epithelial tissues, including the skin, gastrointestinal tract, pulmonary epithelium, ocular tissues and the like. The compositions and methods are also useful for delivery across endothelial tissues, including the blood brain barrier. The compositions and methods employ a delivery enhancing transporter that has sufficient guanidino or amidino sidechain moieties to enhance delivery of a compound conjugated to the reagent across one or more layers of the tissue, compared to the non-conjugated compound. The delivery-enhancing polymers include, for example, poly-arginine molecules that are preferably between about 6 and 25 residues in length.
本发明提供了用于增强药物和其他药剂通过上皮组织的传递的组合物和方法,包括皮肤、胃肠道、肺上皮、眼组织等。这些组合物和方法也适用于通过内皮组织的传递,包括血脑屏障。这些组合物和方法采用了一种传递增强转运体,该转运体具有足够的
鸟氨酸或酰胺基侧链基团,以增强与试剂结合的化合物通过一层或多层组织的传递,相对于未结合的化合物。传递增强聚合物包括例如,长度在6到25个残基之间的多
鸟氨酸分子。