Multifunctional Molecular Therapeutic Agent for Targeted and Controlled Dual Chemo- and Photodynamic Therapy
作者:Summer Y. Y. Ha、Yimin Zhou、Wing-Ping Fong、Dennis K. P. Ng
DOI:10.1021/acs.jmedchem.0c00893
日期:2020.8.13
A novel molecular therapeutic agent was designed and synthesized, which contains three functional components, namely, a zinc(II) phthalocyanine substituted with a 2,4-dinitrobenzenesulfonate (DNBS) group as a glutathione (GSH)-activated photosensitizer, a chemo-prodrug based on combretastatin A-4 (CA4) with a singlet oxygen-cleavable aminoacrylate linker, and a biotin moiety as a tumor-targeting ligand
设计并合成了一种新型分子治疗剂,它包含三个功能成分,即被谷胱甘肽(GSH)活化的光敏剂,被2,4-二硝基苯磺酸盐(DNBS)取代的酞菁锌(II)取代基,化学前药基于康普他汀A-4(CA4)和单线态氧可裂解的氨基丙烯酸酯连接基,以及生物素部分作为肿瘤靶向配体。与用作阴性对照的低生物素受体表达的HCT-116细胞相比,该缀合物显示出对生物素受体阳性HepG2细胞的优先摄取,从而在去除DNBS后恢复了荧光发射和产生单线态氧按细胞内GSH分组。