期刊
JOURNAL OF CONTROLLED RELEASE
卷 207, 期 -, 页码 77-85出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jconrel.2015.04.007
关键词
Gold nanoparticles; Chemotherapy; Hyperthermia; Radiosensitization
资金
- Korean Health Technology R&D Project, Ministry for Health and Welfare, Republic of Korea [HI06C0868, HI10C2014]
- National Research Foundation of Korea (NRF) grant - Korean government (MSIT) [NRF-2012R1A2A2A01014671, NRF-2013R1A1A2011346]
- Korea Health Promotion Institute [HI06C0868250015, HI10C2014000014] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Hollow gold nanoparticles (HGNP) are a novel class of hybrid metal nanoparticles whose unique optical and morphological properties have spawned new applications including more effective cancer therapy. The shell thickness of HGNPs can tune the surface plasmon resonance to the near infrared light, resulting in photothermal ablation of tumors with optimal light penetration in tissue. The hollow cavity within a HGNP is able to accommodate a high payload of chemotherapeutic agents. They have also been used for enhancing radiosensitization in tumors during radiotherapy due to the high X-ray absorption capability of gold particles. However, no report has yet been published that utilize HGNPs for the triple combination therapy and CT imaging. In this study, we synthesized HGNPs which exhibit better response to radiation for therapy and imaging and demonstrated the effects of combined chemotherapy, thermal and radiotherapy. This combination strategy presented delayed tumor growth by 4.3-fold and reduced tumor's weight by 6.8-fold compared to control tumors. In addition, we demonstrated the feasibility of HGNP as a CT imaging agent. It is expected that translating these capabilities to human cancer patients could dramatically increase the antitumor effect and potentially overcome resistance to chemotherapeutic agents and radiation. (C) 2015 Elsevier B.V. All rights reserved.
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