Gd-based upconversion nanocarriers with yolk-shell structure for dual-modal imaging and enhanced chemotherapy to overcome multidrug resistance in breast cancer
Zeng, LY (reprint author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China.
文章类型:
期刊文献
英文摘要:
Multidrug resistance (MDR) of cancers is still a major challenge, and it is very important to develop visualized nanoprobes for the diagnosis and treatment of drug resistant cancers. In this work, we developed a multifunctional delivery system based on DOX-encapsulated NaYF4:Yb/Er@NaGdF4 yolk-shell nanostructures for simultaneous dual-modal imaging and enhanced chemotherapy in drug resistant breast cancer. Using the large pore volume of the nanostructure, the delivery system had a high loading efficiency and excellent stability. Also, an in vitro and in vivo toxicity study showed the good biocompatibility of the as-prepared yolk-shell nanomaterials. Moreover, by nanocarrier delivery, the uptake of DOX could be greatly increased in drug resistant MCF-7/ADR cells. Compared with free DOX, the as-prepared delivery system enhanced the chemotherapy efficacy against MCF-7/ADR cells, indicating the excellent capability for overcoming MDR. Furthermore, core-shell NaYF4:Yb/Er@NaGdF4 improved the upconversion luminescence (UCL) performance, and the designed delivery system could also be applied for simultaneous UCL and magnetic resonance (MR) imaging, which could be a good candidate as a dual-modal imaging nanoprobe. Therefore, we developed a multifunctional yolk-shell delivery system, which could have potential applications as a visualized theranostic nanoprobe to overcome MDR in breast cancer.
Gd-based upconversion nanocarriers with yolk-shell structure for dual-modal imaging and enhanced chemotherapy to overcome multidrug resistance in breast cancer.pdf（4087KB）
Pan, YW,Zhang, L,Zeng, LY,et al. Gd-based upconversion nanocarriers with yolk-shell structure for dual-modal imaging and enhanced chemotherapy to overcome multidrug resistance in breast cancer[J]. NANOSCALE,2016-01-01,8(2):878—888.
Gd-based upconversion nanocarriers with yolk-shell structure for dual-modal imaging and enhanced chemotherapy to overcome multidrug resistance in breast cancer.pdf
