脑部疾病化学药物治疗的关键是穿透血脑屏障(BBB).受体介导的胞吞转运是目前递送药物入脑应用广泛且较成熟的策略.在BBB和脑胶质瘤细胞上低密度脂蛋白受体相关蛋白-1(LRP-1)高表达,angiopep-2(ANG)可与LRP-1特异性结合实现脑靶向性,对脑肿瘤具有双级靶向效应,且靶向效率高于乳铁蛋白和转铁蛋白等靶向分子.本文介绍了ANG的结构与功能,及其在脑靶向制剂中的应用,为脑靶向制剂的研发提供依据,为脑部疾病的治疗提供参考.%The key factor of chemotherapy for brain disorders is to penetrate brain blood barrier(BBB). Receptor mediated en-docytosis is one of the mechanisms for drug carriers to cross the BBB. Angiopep-2(ANG)can specifically bind to low density lipopro-tein receptor-related proteins 1(LRP-1)overexpressed on BBB and glioma cells,thus exhibits a higher LRP-mediated BBB penetra-tion capability. Its targeting efficiency is higher than that of other targeting molecules such as transferrin and(TF)lactoferrin(LF). This paper introduces the structure and function of ANG,and its application in brain targeting delivery systems,in order to provide references for research and development of brain targeting preparations and guidance for therapy of brain diseases.
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