期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 13, 页码 -出版社
MDPI
DOI: 10.3390/ijms22136658
关键词
photosensitizer; cancer therapy; nanocomposite; photodynamic therapy; photothermal therapy
资金
- Ministry of Science and Technology, Taiwan, ROC [MOST 109-2314-B-182-013-MY3]
- Chang Gung Memorial Hospital, Taiwan, ROC [BMRP249, CMRPD2K0131, CMRPD2I0042]
- Chang Gung University
PSs have theranostic capabilities for cancer treatment through generating singlet oxygen and/or thermal heat. UV-Vis dyes are used for PDT, but have limited tissue penetration depth. NIR PSs like ICG and its derivatives have been introduced for cancer therapy by combining PTT and/or PDT.
Photosensitizers (PSs) have received significant attention recently in cancer treatment due to its theranostic capability for imaging and phototherapy. These PSs are highly responsive to light source of a suitable wavelength for image-guided cancer therapy from generated singlet oxygen and/or thermal heat. Various organic dye PSs show tremendous attenuation of tumor cells during cancer treatment. Among them, porphyrin and chlorophyll-based ultraviolet-visible (UV-Vis) dyes are employed for photodynamic therapy (PDT) by reactive oxygen species (ROS) and free radicals generated with 400-700 nm laser lights, which have poor tissue penetration depth. To enhance the efficacy of PDT, other light sources such as red light laser and X-ray have been suggested; nonetheless, it is still a challenging task to improve the light penetration depth for deep tumor treatment. To overcome this deficiency, near infrared (NIR) (700-900 nm) PSs, indocyanine green (ICG), and its derivatives like IR780, IR806 and IR820, have been introduced for imaging and phototherapy. These NIR PSs have been used in various cancer treatment modality by combining photothermal therapy (PTT) and/or PDT with chemotherapy or immunotherapy. In this review, we will focus on the use of different PSs showing photothermal/photodynamic response to UV-Vis or NIR-Vis light. The emphasis is a comprehensive review of recent smart design of PS-loaded nanocomposites for targeted delivery of PSs in light-activated combination cancer therapy.
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