Erschienen in:
01.11.2007 | Original Article
Sonodynamic therapy on chemically induced mammary tumor: pharmacokinetics, tissue distribution and sonodynamically induced antitumor effect of gallium–porphyrin complex ATX-70
verfasst von:
Nagahiko Yumita, Nobuo Okuyama, Kazuaki Sasaki, Shin-ichiro Umemura
Erschienen in:
Cancer Chemotherapy and Pharmacology
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Ausgabe 6/2007
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Abstract
Sonodynamically induced antitumor effect of a gallium porphyrin complex, ATX-70 was evaluated on a chemically induced mammary tumor in Sprague–Dawley rats. The timing of 24 h after the administration of ATX-70 was chosen for ultrasonic exposure, based on pharmacokinetic analysis of ATX-70 concentrations in the tumor, plasma, skin, and muscle. At an ATX-70 dose not less than 2.5 mg/kg and at a free-field ultrasonic intensity not less than 3 W/cm2, the synergistic effect between ATX-70 administration and ultrasonic exposure on the tumor growth inhibition was significant. These results suggest that ATX-70 is a potential sonosensitizer for sonodynamic treatment of spontaneous mammary tumors.