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Liu, Chang-Ming; Chen, Guang-Bing; Chen, Hui-Hong; Zhang, Jia-Bin; Li, Hui-Zhang; Sheng, Ming-Xiong; Weng, Wu-Bin; Guo, Shan-Ming
Colloids and surfaces, B, Biointerfaces, 03/2019, Letnik: 175Journal Article
Display omitted •CaCO3 capped mesoporous silica nanoparticles with surface camouflaged with cancer cell membrane.•The nanoparticles is constructed only by naturally biomaterials.•The nanoparticles combine biocompatibility, pH-sensitive drug release and homotypic targeting.•The nanoparticles efficiently inhibited prostate tumor growth. Nanoparticular drug delivery system (NDDS) has great potential for enhancing the efficacy of traditional chemotherapeutic drugs. However, it is still a great challenge to fabricate a biocompatible NDDS with simple structure capable of optimizing therapeutic efficacy, such as high tumor accumulation, suitable drug release profile (e.g. no premature drug leakage in normal physiological conditions while having a rapid release in cancer cells), low immunogenicity, as well as good biocompatibility. In this work, a simple core/shell structured nanoparticle was fabricated for prostate cancer treatment, in which a mesoporous silica nanoparticle core was applied as a container to high-efficiently encapsulate drugs (doxorubicin, DOX), CaCO3 interlayer was designed to act as sheddable pH-sensitive gatekeepers for controlling drug release, and cancer cell membrane wrapped outlayer could improve the colloid stability and tumor accumulation capacity. In vitro cell experiments demonstrated that the as-prepared nanovehicles (denoted as DOX/MSN@CaCO3@CM) could be efficiently uptaken by LNCaP-AI prostate cancer cells and even exhibited a better anti-tumor efficiency than free DOX. In addition, Live/Dead cell detection and apoptosis experiment demonstrated that MSN/DOX@CaCO3@CM could effectively induce apoptosis-related death in prostate cancer cells. In vivo antitumor results demonstrated that DOX/MSN@CaCO3@CM administration could remarkably suppress the tumor growth. Compared with other tedious approaches to optimize the therapeutic efficacy, this study provides an effective drug targeting system only using naturally biomaterials for the treatment of prostate cancer, which might have great potential in clinic usage.
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