期刊
NANOMATERIALS
卷 7, 期 5, 页码 -出版社
MDPI AG
DOI: 10.3390/nano7050111
关键词
cervical cancer; magnetic gold nanoparticles; synergetic; radio-photothermal therapy; magnetic field
类别
资金
- National Natural Science Foundation of China [61535010, 81601609]
- Key Research Program of the Chinese Academy of Sciences [KFZD-SW-204]
- Natural Science Foundation of Jiangsu Province [BE2015601]
- Science and Technology Department of Suzhou City [SS201539, ZXY201434]
- Suzhou Key Medical Center [Szzx201506]
The combination of radiotherapy (RT) and photothermal therapy (PTT) has been considered an attractive strategy in cervical cancer treatment. However, it remains a challenge to simultaneously enhance the radio-sensitivity of tumor tissue, develop tumor tissue-focused radiation therapies and combine dual therapeutic modalities. In this study, core-shell type magnetic gold (Fe3O4@Au) nanoparticles are exploited to achieve the synergistic efficacy of radio-photothermal therapy in cervical cancer. Fe3O4@Au nanoparticles (NPs) with uniform morphology exhibited superior surface plasmon resonance properties, excellent superparamagnetic properties, good biocompatibility and high photothermal conversion efficiency. For the in vitro tests, a low concentration of Fe3O4@Au NPs after a short period of near-infrared irradiation lead to the time-dependent death of cervical cancer cells. Further, the combination of RT and PTT induced synergistic anti-cancer effects in vitro. More importantly, an external magnetic field could significantly enhance the synergistic efficacy of Fe3O4@Au NPs by improving their internalization. Hence, the reported Fe3O4@ Au NPs have the potential to be good nanoagents with excellent magnetic targeting ability for cervical cancer radio-photothermal treatment.
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