期刊
THERANOSTICS
卷 3, 期 5, 页码 317-330出版社
IVYSPRING INT PUBL
DOI: 10.7150/thno.5284
关键词
Photodynamic therapy; Upconversion nanoparticles
资金
- National Basic Research Programs of China (973 Program) [2012CB932600, 2011CB911002]
- National Natural Science Foundation of China [51002100]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Photodynamic therapy (PDT) is a non-invasive treatment modality for a variety of diseases including cancer. PDT based on upconversion nanoparticles (UCNPs) has received much attention in recent years. Under near-infrared (NIR) light excitation, UCNPs are able to emit high-energy visible light, which can activate surrounding photosensitizer (PS) molecules to produce singlet oxygen and kill cancer cells. Owing to the high tissue penetration ability of NIR light, NIR-excited UCNPs can be used to activate PS molecules in much deeper tissues compared to traditional PDT induced by visible or ultraviolet (UV) light. In addition to the application of UCNPs as an energy donor in PDT, via similar mechanisms, they could also be used for the NIR light-triggered drug release or activation of 'caged' imaging or therapeutic molecules. In this review, we will summarize the latest progresses regarding the applications of UCNPs for photodynamic therapy, NIR triggered drug and gene delivery, as well as several other UCNP-based cancer therapeutic approaches. The future prospects and challenges in this emerging field will be also discussed.
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