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  • Title: [Enhanced effect of intra-arterial adriamycin administration in combination with degradable starch microspheres on an intra-arterial chemotherapy model of nude rats transplanted of human gastric cancer].
    Author: Sakamoto Y, Fujita M, Ota J, Sugiyama R, Sugimoto T, Taguchi T.
    Journal: Nihon Geka Gakkai Zasshi; 1990 Mar; 91(3):326-34. PubMed ID: 2359388.
    Abstract:
    Enhancement of the antitumor effects of adriamycin (ADR) by concomitant use of degradable starch microspheres (DSM) and pharmacokinetics of ADR in combination with DSM was investigated. An intra-arterial chemotherapy model of the nude rats transplanted of human gastric cancer xenografts (H-154) in the hind-limbs was used for this study. Drug was administered through a catheter inserted into the carotid artery with the tip in the common iliac artery. In the pharmacological study, increase of regional uptake of ADR and decrease of systemic distribution of ADR were recognized in some degree. DSM 30 mg/kg, which caused temporary arrest of blood flow in the tumor, had an only weak effect on tumor growth. ADR 3 mg/kg mixed with DSM 30 mg/kg was more effective than ADR 3 mg/kg solution. Furthermore, mixture of ADR 2 mg/kg and DSM 30 mg/kg had a greater effect on tumor growth than ADR 2 mg/kg following DSM 30 mg/kg. It seems that embolization by DSM, retention of ADR in regional tissues and cytotoxic effect of ADR have contributed to such a strong effect of ADR mixed with DSM.
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