Biodegradable, Hydrogen Peroxide, and Glutathione Dual Responsive Nanoparticles for Potential Programmable Paclitaxel Release

Autor: Xueyun Wang, Toujun Zou, Daiqin Chen, Guoqiang Zhang, Ying Zhang, Hao Hong, Ruimin Li, Chunying Shu, Li-Jun Wan, Mirong Guan, Chunru Wang
Rok vydání: 2018
Předmět:
Zdroj: Journal of the American Chemical Society. 140:7373-7376
ISSN: 1520-5126
0002-7863
DOI: 10.1021/jacs.7b12025
Popis: Reactive oxygen species (ROS) and glutathione (GSH) dual responsive nanoparticulate drug delivery systems (nano-DDSs) hold great promise to improve the therapeutic efficacy and alleviate the side effects of chemo drugs in cancer theranosis. Herein, hydrogen peroxide (H2O2) and GSH dual responsive thioketal nanoparticle (TKN) was rationally designed for paclitaxel (PTX) delivery. Compared to other stimuli-sensitive nano-DDSs, this dual responsive DDS is not only sensitive to biologically relevant H2O2 and GSH for on-demand drug release but also biodegradable into biocompatible byproducts after fulfilling its delivering task. Considering the heterogeneous redox potential gradient, the PTX loaded TKNs (PTX-TKNs) might first respond to the extracellular ROS and then to the intracellular GSH, achieving a programmable release of PTX at the tumor site. The selective toxicity of PTX-TKNs to tumor cells with high levels of ROS and GSH was verified both in vitro and in vivo.
Databáze: OpenAIRE