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Synchronous Chemoradiation Nanovesicles by X‐Ray Triggered Cascade of Drug Release
Author(s) -
Zhou Zijian,
Chan Alexander,
Wang Zhantong,
Huang Xiaolin,
Yu Guocan,
Jacobson Orit,
Wang Sheng,
Liu Yijing,
Shan Lingling,
Dai Yunlu,
Shen Zheyu,
Lin Lisen,
Chen Wei,
Chen Xiaoyuan
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201802351
Subject(s) - chemistry , ethylene glycol , radical , irradiation , nanoparticle , vesicle , molecule , photochemistry , combinatorial chemistry , biophysics , organic chemistry , nanotechnology , materials science , biochemistry , physics , membrane , nuclear physics , biology
The approach of concurrent‐to‐synchronous chemoradiation has now been advanced by well‐designed nanovesicles that permit X‐ray irradiation‐triggered instant drug release. The nanovesicles consist of Au nanoparticles tethered with irradiation labile linoleic acid hydroperoxide (LAHP) molecules and oxidation‐responsive poly(propylene sulfide)‐poly(ethylene glycol) (PPS‐PEG) polymers, where DOX were loaded in the inner core of the vesicles (Au‐LAHP‐vDOX). Upon irradiation, the in situ formation of hydroxyl radicals from LAHP molecules triggers the internal oxidation of PPS from being hydrophobic to hydrophilic, leading to degradation of the vesicles and burst release of cargo drugs. In this manner, synchronous chemoradiation showed impressive anticancer efficacy both in vitro and in a subcutaneous mouse tumor model by one‐dose injection and one‐time irradiation.