targeted in vivo delivery of dual‐action PtIV prodrugs. The dual targeting was established by liposomal encapsulation of PtIV complexes, thereby utilizing the enhanced permeability and retention (EPR) effect as the first stage of targeting to attain a high accumulation of the drug‐loaded liposomes in the tumor. After the release of the PtIV prodrug inside cancer cells, a second stage of targeting directed
设计了一种新颖且高效的双重靶向平台,以确保双重作用的Pt IV前药在体内靶向递送。通过脂质体包裹Pt IV复合物来建立双重靶向,从而利用增强的通透性和保留(EPR)效应作为靶向的第一阶段,以在肿瘤中获得高载药量的脂质体。在癌细胞内释放Pt IV前药后,第二阶段靶向将Pt IV前药的一部分导向线粒体。在细胞内还原后,这些Pt IV前药释放出两个
生物活性分子,既作用于线粒体又作用于核DNA。我们的Pt IV该系统显示出优异的体外和体内活性,其特征在于低微摩尔范围的细胞毒性和完全的肿瘤缓解。值得注意的是,显着的体内活性伴随着肾脏毒性的降低,突出了我们新型的双重靶向双重作用平台的独特治疗潜力。