Superparamagnetic Fe3O4-PEG2K-FA@Ce6 Nanoprobes for in Vivo Dual-mode Imaging and Targeted Photodynamic Therapy

Ting Yin, Peng Huang, Guo Gao, Joseph Shapter, Yulan Shen, Rongjin Sun, Caixia Yue, Chunlei Zhang, Yanlei Liu, Sui Zhou, Daxiang Cui

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    Abstract

    The development of targeted nanoprobes is a promising approach to cancer diagnostics and therapy. In the present work, a novel multifunctional photo/magnet-diagnostic nanoprobe (MNPs-PEG2K-FA@Ce6) has been developed. This nanoprobe is built using folic acid (FA), bifunctional polyethylene glycol (PEG2K) and photosensitizer chlorin e6 (Ce6). The MNPs-PEG2K-FA@Ce6 nanoprobes are superparamagnetic, can be synthesized on a large scale by a one-pot hydrothermal process without further surface modification and are stable in an aqueous environment for eight months. Compared with free Ce6 nanoprobes in vitro studies, the MNPs-PEG2K-FA@Ce6 nanoprobes significantly enhance cellular uptake efficiency and promote the effectiveness of photodynamic therapy (PDT) with the assistance of 633 nm laser irradiation. The unique nanoprobes show superior penetration and a retention time of more than six days with less accumulation in the liver allowing highly effective tumor recognition and monitoring. Additionally, there was little damage to healthy organs or tissues. These exciting new nanoprobes could be potential building blocks to develop new clinical therapies and translational medicine.

    Original languageEnglish
    Article number36187
    Pages (from-to)Art: 36187
    Number of pages12
    JournalScientific Reports
    Volume6
    DOIs
    Publication statusPublished - 2016

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  • Cite this

    Yin, T., Huang, P., Gao, G., Shapter, J., Shen, Y., Sun, R., Yue, C., Zhang, C., Liu, Y., Zhou, S., & Cui, D. (2016). Superparamagnetic Fe3O4-PEG2K-FA@Ce6 Nanoprobes for in Vivo Dual-mode Imaging and Targeted Photodynamic Therapy. Scientific Reports, 6, Art: 36187. [36187]. https://doi.org/10.1038/srep36187