Antitumor Agents. I. DNA Topoisomerase II Inhibitory Activity and the Structural Relationship of Podophyllotoxin Derivatives as Antitumor Agents
スポンサーリンク
概要
- 論文の詳細を見る
Various podophyllotoxin derivatives from desoxypodophyllotoxin (DPT) were synthesized to examine the structural relationships between the biological significance (cytotoxic effect, effects on DNA topoisomerase II and tubulin polymerization) in vitro and antitumor activity in vivo (L 1210).An intact 6,7-methylenedioxy group of DPT is necessary to inhibit tubulin polymerization and topoisomerase II. 4'-Phenolic hydroxyl group of DPT is essential to inhibit DNA topoisomerase II and the inhibitory effect on DNA topoisomerase II contributes to a high cytotoxicity.The introduction of an aminoalkoxy group at 1-position of DPT enhances the inhibitory activity against DNA topoisomerase II and cytotoxic effect, causing the inhibitory activity against tubulin polymerization to disappear. The results of antitumor test in mice bearing L 1210 on podophyllotoxin derivatives suggest the following : 1) the strong cytotoxic effect itself is not a good indication of antitumor activity in vivo as long as it is associated with inhibition of tubulin polymerization. DNA topoisomerase II inhibitory effect contributes to an antitumor activity in vivo; 2) detailed measurements of cytotoxicity and inhibition on DNA topoisomerase II and tubulin polymerization in vitro are necessary to evaluate podophyllotoxin derivatives.
- 社団法人日本薬学会の論文
- 1992-10-25
著者
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寺田 忠史
Hanno Research Center, Taiho Pharmaceutical Co., Ltd.,
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藤本 勝彦
Hanno Research Center, Taiho Pharmaceutical Co., Ltd.,
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野村 誠
Hanno Research Center, Taiho Pharmaceutical Co., Ltd.,
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山下 純一
Hanno Research Center, Taiho Pharmaceutical Co., Ltd.,
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WIERZBA Konstanty
Hanno Research Center, Taiho Pharmaceutical Co., Ltd.,
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小武内 尚
Tokushima Institute, Taiho Pharmaceutical Co., Ltd.,
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武田 節夫
Tokushima Institute, Taiho Pharmaceutical Co., Ltd.,
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山口 秀夫
Osaka University of Pharmaceutical Sciences
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山田 雄次
Hanno Research Center, Taiho Pharmaceutical Co., Ltd.
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藤本 勝彦
Hanno Research Center Taiho Pharmaceutical Co. Ltd.
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小武内 尚
Research Institute, Taiho Pharmaceutical Co., Ltd.,
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武田 節夫
Research Institute, Taiho Pharmaceutical Co., Ltd.,
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山下 純一
Hanno Research Center Taiho Pharmaceutical Co. Ltd.
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寺田 忠史
Hanno Research Center Taiho Pharmaceutical Co. Ltd.
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小武内 尚
Tokushima Institute Taiho Pharmaceutical Co. Ltd.
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Wierzba K
Taiho Pharmaceutical Co. Ltd. Saitama
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Wierzba Konstanty
Hanno Research Center Taiho Pharmaceutical Co. Ltd.
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Wierzba Konstanty
Taiho Pharmaceutical Co. Ltd. Hanno Research Center
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山田 雄次
Hanno Research Center Taiho Pharmaceutical Co. Ltd.
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野村 誠
Hanno Research Center Taiho Pharmaceutical Co. Ltd.
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武田 節夫
Tokushima Institute Taiho Pharmaceutical Co. Ltd.
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