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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Amsacrine ： ウィキペディア英語版 Amsacrine Amsacrine (synonyms: m-AMSA, acridinyl anisidide) is an antineoplastic agent. It has been used in acute lymphoblastic leukemia. ==Mechanism== Its planar fused ring system can intercalate into the DNA of tumor cells, thereby altering the major and minor groove proportions. These alterations to DNA structure inhibit both DNA replication and transcription by reducing association between the affected DNA and: DNA polymerase, RNA polymerase and transcription factors. Amsacrine also expresses topoisomerase inhibitor activity, specifically inhibiting topoisomerase II (compares with the better known agent etoposide).〔Genetic Response to Metals. Sarkar, Bibudhendra. CRC Press, 1995. ISBN 978-0-8247-9615-0〕 In contrast, the structurally similar o-AMSA differing in the position of the methoxy substituent group on the anilino-ring have little ability to poison topoisomerase II despite of its intercalative behavior, suggesting that intercalation of the molecule in itself is insufficient to trap topoisomerase II as a covalent complex on DNA. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Amsacrine」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.