Multifunctional l-arginine-based magnetic nanoparticles for multiple-synergistic tumor therapy

作者全名："Yang, Haiyan; Jiang, Fujie; Zhang, Liang; Wang, Lu; Luo, Yong; Li, Ningshan; Guo, Yu; Wang, Qi; Zou, Jianzhong"

作者地址："[Yang, Haiyan; Jiang, Fujie; Wang, Lu; Luo, Yong; Li, Ningshan; Wang, Qi; Zou, Jianzhong] Chongqing Med Univ, Coll Biomed Engn, State Key Lab Ultrasound Med & Engn, Chongqing 400016, Peoples R China; [Yang, Haiyan; Jiang, Fujie; Wang, Lu; Luo, Yong; Li, Ningshan; Wang, Qi; Zou, Jianzhong] Chongqing Med Univ, Chongqing Key Lab Biomed Engn, Chongqing 400016, Peoples R China; [Zhang, Liang] Chongqing Med Univ, Affiliated Hosp 2, Inst Ultrasound Imaging, Chongqing 400010, Peoples R China; [Guo, Yu] Army Med Univ, Daping Hosp, Dept Radiol, Chongqing 400042, Peoples R China"

通信作者："Zou, JZ (corresponding author), Chongqing Med Univ, Coll Biomed Engn, State Key Lab Ultrasound Med & Engn, Chongqing 400016, Peoples R China.; Zou, JZ (corresponding author), Chongqing Med Univ, Chongqing Key Lab Biomed Engn, Chongqing 400016, Peoples R China."

来源：BIOMATERIALS SCIENCE

ESI学科分类：MATERIALS SCIENCE

WOS号：WOS:000632135400023

JCR分区：Q2

影响因子：6.6

年份：2021

卷号：9

期号：6

开始页：2230

结束页：2243

文献类型：Article

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摘要："Tumor therapy is facing the big challenge of insufficient treatment. Here, we report high-intensity focused ultrasound (HIFU)-responsive magnetic nanoparticles based on superparamagnetic iron oxide (SPIO, Fe3O4 NPs) as the shell and l-arginine (LA) as the core entrapped by poly-lactide-co-glycolide (PLGA) nanoparticles (Fe3O4@PLGA/LA NPs) for synergistic breast cancer therapy. These NPs can significantly enhance therapeutic performance due to their enhanced accumulation and prolonged retention at the tumor site under magnetic guidance. The Fe3O4@PLGA/LA NPs exhibited synergistic therapeutic effects by the rational combination of HIFU-based tumor ablation and nitric oxide (NO) assisted antitumor gas therapy. Both Fe3O4 NPs and LA could be released rapidly under HIFU irradiation, where Fe3O4 NPs can promote HIFU-based tumor ablation by changing the acoustic properties of the tumor tissues and LA can spontaneously react with hydrogen peroxide (H2O2) in the tumor microenvironment to generate NO for gas therapy. Moreover, Fe3O4 NPs can react with H2O2 to produce highly reactive oxygen-containing species (ROS) to accelerate the oxidation of LA and the release of NO. This novel strategy showed synergistic tumor growth suppression as compared with individual HIFU therapy or gas therapy. This can be attributed to the rational design of multifunctional NPs with magnetic targeting and multi-modality imaging properties."

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