Integration of multiple agent therapy (MAT) into one probe is promising for improving therapeutic efficiency for cancer treatment. However, MAT probe, if entering the cell as a whole, may not be optimal for each therapeutic agent (with different physicochemical properties), to achieve their best performance, hindering strategy optimization. A peptide-conjugated-AIEgen (FC-PyTPA) is presented: upon loading with siRNA, it self-assembles into FCsiRNA-PyTPA. When approaching the region near tumor cells, FCsiRNA-PyTPA responds to extracellular MMP-2 and is cleaved into FC(siRNA)and PyTPA. The former enters cells mainly by macropinocytosis and the latter is internalized into cells mainly through caveolae-mediated endocytosis. This two-part strategy greatly improves the internalization efficiency of each individual therapeutic agent. Inside the cell, self-assembly of nanofiber precursor F, gene interference of C-siRNA, and ROS production of PyTPA are activated to inhibit tumor growth.
基金:
National Natural Science Foundation of China [21788102, 21722507, 21525523, 21974128, 21874121]; Natural Science Foundation of Hubei Province [2019CFA043]; Australian Research Council [DE170100058]; Australian Research Council [DE170100058] Funding Source: Australian Research Council
第一作者单位:[1]China Univ Geosci, Fac Mat Sci & Chem, Minist Educ, Engn Res Ctr Nanogeomat, Wuhan 430078, Peoples R China
通讯作者:
推荐引用方式(GB/T 7714):
Yang Juliang,Dai Jun,Wang Quan,et al.Tumor-Triggered Disassembly of a Multiple-Agent-Therapy Probe for Efficient Cellular Internalization[J].ANGEWANDTE CHEMIE-INTERNATIONAL EDITION.2020,59(46):20405-20410.doi:10.1002/anie.202009196.
APA:
Yang, Juliang,Dai, Jun,Wang, Quan,Cheng, Yong,Guo, Jingjing...&Xia, Fan.(2020).Tumor-Triggered Disassembly of a Multiple-Agent-Therapy Probe for Efficient Cellular Internalization.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,59,(46)
MLA:
Yang, Juliang,et al."Tumor-Triggered Disassembly of a Multiple-Agent-Therapy Probe for Efficient Cellular Internalization".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 59..46(2020):20405-20410