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Sun, Huiping; Su, Jinghan; Meng, Qingshuo; Yin, Qi; Chen, Lingli; Gu, Wangwen; Zhang, Zhiwen; Yu, Haijun; Zhang, Pengcheng; Wang, Siling; Li, Yaping
Advanced functional materials, 01/2017, Letnik: 27, Številka: 3Journal Article
The cell‐specific targeting drug delivery and controlled release of drug at the cancer cells are still the main challenges for anti‐breast cancer metastasis therapy. Herein, the authors first report a biomimetic drug delivery system composed of doxorubicin (DOX)‐loaded gold nanocages (AuNs) as the inner cores and 4T1 cancer cell membranes (CMVs) as the outer shells (coated surface of DOX‐incorporated AuNs (CDAuNs)). The CDAuNs, perfectly utilizing the natural cancer cell membranes with the homotypic targeting and hyperthermia‐responsive ability to cap the DAuNs with the photothermal property, can realize the selective targeting of the homotypic tumor cells, hyperthermia‐triggered drug release under the near‐infrared laser irradiation, and the combination of chemo/photothermal therapy. The CDAuNs exhibit a stimuli‐release of DOX under the hyperthermia and a high cell‐specific targeting of the 4T1 cells in vitro. Moreover, the excellent combinational therapy with about 98.9% and 98.5% inhibiting rates of the tumor volume and metastatic nodules is observed in the 4T1 orthotopic mammary tumor models. As a result, CDAuNs can be a promising nanodelivery system for the future therapy of breast cancer. The biomimetic gold nanocages composed of doxorubicin in the cores and the 4T1 cancer cell membranes as the shells, utilizing the homotypic targeting ability of the natural cancer cell membranes and the photothermal property of gold nanocages, can realize the selective targeting of the homotypic tumor cells, NIR‐triggered drug release, and synergetic chemo/photothermal therapy to inhibit metastatic breast cancer.
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