Cross-Linking of Thiolated Paclitaxel-Oligo(<i>p</i>
-phenylene vinylene) Conjugates Aggregates inside Tumor Cells Leads to “Chemical Locks” That Increase Drug Efficacy
作者:Lingyun Zhou、Fengting Lv、Libing Liu、Guizhi Shen、Xuehai Yan、Guillermo C. Bazan、Shu Wang
DOI:10.1002/adma.201704888
日期:2018.3
Cross‐linking of the aggregates via oxidation of thiol groups is favored in tumorcells because of the higher reactive oxygen species (ROS) concentration. Cross‐linked aggregates “chemically lock” the multichromophore particle for a more persistent effect. The IC50 of OPV‐S‐PTX for tumorcell line A549 is reduced down to 0.33 × 10−9m from that observed for PTX itself (41 × 10−9m). Enhanced efficacy by OPV‐S‐PTX