Universal Scaffold for an Activatable Photosensitizer with Completely Inhibited Photosensitivity
作者:Wenhao Zhai、Yongkang Zhang、Ming Liu、Hao Zhang、Junqing Zhang、Changhua Li
DOI:10.1002/anie.201907510
日期:2019.11.11
Activatable photosensitizers (aPSs) sensitive to specific stimuli hold potential for targeting multiple disease biomarkers and are desirable for photodynamic therapy (PDT). Presented herein is the design of aPSs that can be activated and fully recover from an inhibited state in the presence of specific biomarker. A designed long-wavelength D-π-A photosensitizer, PSSe-I , with highly efficient photosensitivity
对特定刺激敏感的可活化光敏剂(aPS)具有靶向多种疾病生物标记物的潜力,是光动力疗法(PDT)所需要的。本文提出的是aPS的设计,在存在特定生物标志物的情况下,该aPS可以被激活并从抑制状态中完全恢复。使用设计的长波长D-π-A光敏剂PSSe-I,它具有产生1 O2的高效光敏性。带有生物标志物敏感基团的PSSe-1的酚盐供体的笼罩提供了ALP PS,并在细胞内证明了其光敏性的急剧激活。为了提高设计策略的灵活性,将可点击的叠氮化物基团引入到支架中以允许集成更多功能。模块化派生的mito-PN PS,配备了线粒体靶向基团和特定的过氧亚硝酸盐反应性触发器的设备,被合成并在细胞中表现出优异的性能。此策略可能导致定制适用于特定PDT的aPS。