期刊
POLYMER BULLETIN
卷 79, 期 12, 页码 10555-10571出版社
SPRINGER
DOI: 10.1007/s00289-021-03999-x
关键词
cRGD; Mesoporous silica; Core-shell; Nanoparticles; Drug delivery
资金
- Key Research and Development Program of Shaanxi [2021ZDLSF03-05]
- Scientific and Technological Innovation Team of Xi'an Medical College [2021DT07]
- Xi'an Medical University Young Outstanding Talents Supporting Fund [05041905]
- Shaanxi Higher Education Research Project [XGH19042]
- Xi'an Science and Technology Plan Project [2020KJRC0135]
- Xi'an Weiyang District Science and Technology Plan Project [201930]
In this study, a redox-responsive nanocarrier (RGD-MSNs@BSA) was developed by conjugating bovine serum albumin (BSA) to mesoporous silica nanoparticles (MSNs) with a disulfide bond, which showed efficient and stable encapsulation of the anticancer drug doxorubicin (DOX) and redox-responsive drug release in a glutathione (GSH)-containing environment. Moreover, the modification of cRGD peptide on the particle surface enhanced the tumor cell-targeting and cellular uptake of the nanoparticles.
Nano core-shell drug carriers with high stability, low toxicity, and targeted drug delivery are significance for the delivery of anti-tumor drugs. In this study, Albumin from bovine serum (BSA), serving as a capping agent, was conjugated to MSNs via a cleavable disulfide bond to generate a redox-responsive nanocarrier (MSNs@BSA). Subsequently, cRGD peptide, as a targeting ligand, was modified on the particle surface by a protein cross-linker to obtain nanoparticles with tumor cell-targeting properties (RGD-MSNs@BSA). The construction of RGD-MSNs@BSA was confirmed by DLS analysis, scanning electron microscope (SEM), transmission electron microscopy (TEM), electron dispersive spectroscopy (EDS), X-Ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR), respectively. It was displayed that the model anticancer drug doxorubicin (DOX) was efficiently and stably encapsulated in RGD-MSNs@BSA in the absence of glutathione (GSH), and an outbreak of DOX was observed when the particles were exposed to a GSH-containing environment. It demonstrated that disulfide-linked BSA capping can increase the drug loading stability, while enduing it redox sensitivity. Flow cytometry and fluorescence microscope tests displayed that cellular uptake of RGD-MSNs@BSA was much higher than that of particles without cRGD and free DOX. These results indicated that RGD-MSNs@BSA can increase drug tumor-targeting and drug cellular uptake.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据