In Vivo Drug Release and Antitumor Characteristics of Water-Soluble Conjugates of Mitomycin C with Glycol-Chitosan and N-Succinyl-Chitosan
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概要
- 論文の詳細を見る
The water-soluble conjugates of mitomycin C (MMC) with N-succinyl-chitosan (N-Suc-chitosan) and glycol-chitosan (Gly-chitosan), named N-Suc-chitosan-glu-MMC and Gly-chitosan-glu-MMC, respectively, were characterized mainly by the plasma concentration-time profiles of MMC after intraperitoneal administration and their in vivo antitumor effect against P388 leukemia and Sarcoma 180. Before in vivo evaluation, polymer-drug binding characteristics were checked by gel-chromatography. Gel-chromatographs proposed the covalent binding of 1a-(4-carboxybutyryl)-MMC (glu-MMC) with both the polymer supports. The plasma concentration of MMC showed that each conjugate released MMC in vivo at a similar rate. Kinetic analysis suggested that the in vivo drug release should be considerably faster than the in vitro release in the buffer, pH 7.4,alone. In the treatment against P388 leukemia inoculated intraperitoneally, Gly-chitosan-glu-MMC showed the highest increase in life span (ILS) at 10 mg MMC eq/kg. It was lethally toxic at the dose of 20 mg MMC eq/kg, while N-Suc-chitosan-glu-MMC gave the highest ILS value at this dose. Each conjugate exhibited a little larger ILS value than MMC. For the Sarcoma 180 solid tumor inoculated subcutaneously, the polymer characteristics affected the antitumor effect. Namely, with the intravenous injection, Gly-chitosan-glu-MMC hardly exhibited any tumor growth inhibition, but N-Suc-chitosan-glu-MMC showed significant tumor growth suppression. As to the intratumoral administration, the tendency to suppress tumor growth was observed in MMC and both the conjugates.
- 公益社団法人日本薬学会の論文
- 1996-09-15
著者
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佐藤 正基
School Of Pharmaceutical Sciences University Of Shizuoka(present Address):marusa Corporation
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Nagai T
Department Of Pharmaceutics Hoshi University
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Satoh M
Showa Pharmaceutical Univ. Tokyo Jpn
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Sato M
Otsuka Pharmaceutical Co. Ltd. Tokushima Jpn
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NAGAI Tsuneji
Faculty of Pharmaceutical Sciences, Hoshi University
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SATO Mitsutaka
Faculty of Science and Technology, Hirosaki University
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MACHIDA YOSHIHARU
Faculty of Pharmaceutical Sciences, Hoshi University
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佐藤 真友美
Univ. Shizuoka Shizuoka Jpn
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ONISHI Hiraku
Faculty of Pharmaceutical Sciences, Hoshi University
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TAKAHARA Junichi
Faculty of Pharmaceutical Sciences, Hoshi University
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Onishi Hiraku
Department Of Drug Delivery Research Hoshi University
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Onishi Hiraku
Faculty Of Pharmaceutical Sciences Hoshi University
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Sato Mitsutaka
Faculty Of Science And Technology Hirosaki University
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Nagai Tsuneji
Faculty Of Pharmaceutical Sciences Hoshi University
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Machida Yoshiharu
Department Of Drug Delivery Research Hoshi University
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Machida Yoshiharu
Dep. Of Drug Delivery Res. Hoshi Univ.
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Machida Yoshiharu
Faculty Of Pharmaceutical Sciences Hoshi University
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Takahara Junichi
Faculty Of Pharmaceutical Sciences Hoshi University
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