Sonodynamic therapy on chemically induced mammary tumor: pharmacokinetics, tissue distribution and sonodynamically induced antitumor effect of porfimer sodium.
Cancer Sci
; 95(9): 765-9, 2004 Sep.
Article
in En
| MEDLINE
| ID: mdl-15471564
ABSTRACT
The sonodynamically induced antitumor effect of porfimer sodium (PF) was evaluated on a chemically induced mammary tumor in Sprague-Dawley rats. The timing of 24 h after the administration of PF was chosen for the ultrasonic exposure, based on pharmacokinetic analysis of the PF concentrations in the tumor, plasma, skin and muscle. At a PF 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 PF administration and ultrasonic exposure on the tumor growth inhibition was significant. The ultrasonic intensity showed a relatively sharp threshold for the synergistic antitumor effect, which is typical of an ultrasonic effect mediated by acoustic cavitation. These results suggest that PF is a potentially useful as a sonosensitizer for sonodynamic treatment of chemically induced tumors.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ultrasonic Therapy
/
Mammary Neoplasms, Animal
/
Dihematoporphyrin Ether
/
Antineoplastic Agents
Limits:
Animals
Language:
En
Journal:
Cancer Sci
Year:
2004
Document type:
Article
Affiliation country:
Japan