Sonodynamic Therapy Based on Combined Use of Low Dose Administration of Epirubicin-Incorporating Drug Delivery System and Focused Ultrasound |
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| Authors: | Masanori Maeda Yoshihiro Muragaki Jun Okamoto Shin Yoshizawa Nobutaka Abe Hidekazu Nakamoto Hiroshi Ishii Kenichi Kawabata Shinichiro Umemura Nobuhiro Nishiyama Kazunori Kataoka Hiroshi Iseki |
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| Institution: | 1. Institute of Advanced Biomedical Engineering and Science, Tokyo Women''s Medical University, Shinjuku, Tokyo, Japan;2. Graduate School of Biomedical Engineering, Tohoku University, Sendai, Miyagi, Japan;3. Hitachi, Ltd., Chiyoda, Tokyo, Japan;4. Tokyo Animal Medical Center, Suginami, Tokyo, Japan;5. Polymer Chemistry Division, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan |
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| Abstract: | Sonodynamic therapy (SDT) is currently considered as one of the promising minimally invasive treatment options for solid cancers. SDT is based on the combined use of a sonosensitizer drug and high-intensity focused ultrasound (HIFU) to produce cytotoxic reactive oxygen species (ROS) in and around neoplastic cells. Anthracycline drugs, including epirubicin (EPI), have been well known as effective sonosensitizers after interaction with focused ultrasound. Recently a new anticancer drug delivery system (DDS), NC-6300, has been developed that comprises EPI through an acid–labile hydrazone bond. In previous in vivo studies, NC-6300 showed basic drug safety and an excellent concentration property of EPI, and recently has been tested in clinical trials. For realizing minimally invasive cancer treatment, the present study demonstrated the effectiveness and feasibility of DDS-based SDT, which combined a small dose of NC-6300 and low energy of HIFU in mouse models of colon cancer and pancreatic cancer. |
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| Keywords: | Sonodynamic therapy (SDT) High intensity focused ultrasound (HIFU) Drug delivery system (DDS) Micellar Epirubicin Pancreatic cancer Colon cancer |
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