Formation of enzymatic/redox-switching nanogates on mesoporous silica nanoparticles for anticancer drug delivery

被引:42
作者
Luo, Wei [1 ,2 ]
Xu, Xin [1 ,2 ]
Zhou, Bingjie [1 ,2 ]
He, Peixin [3 ]
Li, Yulin [1 ,2 ]
Liu, Changsheng [1 ,2 ]
机构
[1] East China Univ Sci & Technol, Minist Educ, State Key Lab Bioreactor Engn, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China
[2] East China Univ Sci & Technol, Minist Educ, Engn Res Ctr Biomed Mat, Shanghai 200237, Peoples R China
[3] Hubei Univ, Coll Chem & Chem Engn, Key Lab Green Preparat & Applicat Funct Mat, Minist Of Educ, Wuhan 430062, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2019年 / 100卷
基金
中国国家自然科学基金;
关键词
Mesoporous nanoparticles; Gelatin; MMP; 2; cleavable; Nanogate; Anticancer drug delivery; DOXORUBICIN; NANOGELS; CANCER; RELEASE; PACLITAXEL; HYDROGEL; THERAPY; MICELLE; CELLS;
D O I
10.1016/j.msec.2019.03.028
中图分类号
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号
0805 ; 080501 ; 080502 ;
摘要
In this study, we demonstrate a simple approach to developing mesoporous nanohybrids via a process of preloading of an anticancer drug (doxorubicin, DOX) into mesoporous silica nanoparticles (MSN), followed by assembly with a kind of naturally-derived polymer (gelatin, cleavable by matrix metalloproteinase 2 overexpressed by tumor). The gelatin shell is then in situ crosslinked by degradable N,N'-bis(acryloyl)cystamine (BAC) to form enzymatic and redox switchable nanogates on the mesoporous nanoparticles. The nanohybrids displayed pH/redox/enzymatic sensitivity in DOX release under conditions mimicking tumor microenvironments. The nanocarriers can be effectively taken up by A549 cells (a carcinomic human alveolar basal epithelial cell line), resulting in a high DOX intracellular accumulation and an improved anticancer cytotoxicity when compared with free DOX, suggesting their potential as a nanoplatform for therapeutic delivery.
引用
收藏
页码:855 / 861
页数:7
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