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Uto Y, Tamatani D, Mizuki Y, Endo Y, Nakanishi I, Ohkubo K, Fukuzumi S, Ishizuka M, Tanaka T, Kuchiike D, Kubo K, Inui T, Hori H. Evaluation of the sonosensitizing activities of 5-aminolevulinic acid and Sn(IV) chlorin e6 in tumor-bearing chick embryos. Anticancer Res 2014; 34:4583-4587. [PMID: 25075103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Recently, 5-aminolevulinic acid (5-ALA), precursors of protoporphyrin IX (PpIX), and Sn(IV) chlorin e6 (SnCe6) have been proposed as possible sonosensitizers for sonodynamic therapy of cancer. Therefore, we evaluated the pharmacokinetic properties and sonosensitizing activities of 5-ALA and SnCe6 in vivo by using the EMT6/KU tumor-bearing chick embryos. RESULTS The concentration of PpIX in tumor and liver tissues and serum increased in a time-dependent manner after the i.v. administration of 5-ALA; PpIX concentrations reached their peak level after 5-7 h. The concentration of SnCe6 reached its maximum value in the tumor tissue and serum immediately after i.v. administration. The combined treatment of 5-ALA or SnCe6 with ultrasound irradiation showed a significant antitumor effect towards EMT6/KU solid tumors. CONCLUSION We evaluated the pharmacokinetic properties and sonosensitizing activities of 5-ALA and SnCe6 in a chick embryo model and found that 5-ALA might be more suitable as a sonosensitizer than SnCe6.
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Affiliation(s)
- Yoshihiro Uto
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, Tokushima, Japan
| | - Dai Tamatani
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, Tokushima, Japan
| | - Yusuke Mizuki
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, Tokushima, Japan
| | - Yoshio Endo
- Central Research Resource Branch, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Ikuo Nakanishi
- Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), Chiba, Japan
| | - Kei Ohkubo
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA, Japan Science and Technology Agency (JST), Osaka, Japan
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA, Japan Science and Technology Agency (JST), Osaka, Japan
| | | | | | - Daisuke Kuchiike
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, Tokushima, Japan Saisei Mirai Cell Processing Center, Osaka, Japan
| | - Kentaro Kubo
- Saisei Mirai Cell Processing Center, Osaka, Japan
| | - Toshio Inui
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, Tokushima, Japan Saisei Mirai Cell Processing Center, Osaka, Japan Kobe Saisei Mirai Clinic, Kobe, Japan Inui Immunotherapy Clinic, Osaka, Japan
| | - Hitoshi Hori
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, Tokushima, Japan
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