Influence of Polyamine Architecture on the Transport and Topoisomerase II Inhibitory Properties of Polyamine DNA−Intercalator Conjugates
作者:Lu Wang、Harry L. Price、Jane Juusola、Martin Kline、Phanstiel
DOI:10.1021/jm010181v
日期:2001.10.1
unknot (decatenate) and cleave kinetoplast DNA (kDNA). Polyamine conjugation did not disrupt the ability of the acridine-spermine conjugates 8 and 9 to inhibit topo II activity as compared with the 9-aminoacridine and 9-(N-butyl)aminoacridine controls (at 5 microM). The parent polyamines, spermine (5 microM) and spermidine (10 microM), had little effect on topo II activity. In general, the bis-substituted
开发了一种有效的五步合成方法,以获取一系列含有附加的cr啶,蒽和7-氯喹啉基序的精胺衍生物。所述衍生物由在其N4和N9位置处通过脂族链(例如8:to啶-[C4脂族系链]-精胺-[C4脂族系链] -ac啶共价束缚在芳核上的精胺片段组成)。通过由四个或五个亚甲基单元组成的不同系链,改变了精胺和芳香核之间的距离。这些双配体(8、9、12和13)显示在5 microM抑制人DNA拓扑异构酶II(拓扑II)的活性。酶活性被评估为解链(断端)和切割动素体DNA(kDNA)的能力。与9-氨基ac啶和9-(N-丁基)氨基ac啶对照(5μM)相比,多胺缀合不破坏the啶-精胺缀合物8和9抑制topo II活性的能力。母体多胺精胺(5 microM)和亚精胺(10 microM)对topo II的活性影响很小。通常,双取代的精胺衍生物(8、9、12和13)在5 microM时比在10 microM时的单取代亚