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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >The role of polyamine catabolism in polyamine analogue-induced programmed cell death
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The role of polyamine catabolism in polyamine analogue-induced programmed cell death

机译:多胺分解代谢在多胺类似物诱导的程序性细胞死亡中的作用

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摘要

N~1-ethyl-N~11-[(cyclopropyl)methyl]-4,8,- diazaundecane (CPENSpm) is a polyamine analogue that represents a new class of antitumor agents that demonstrate phenotype-specific cytotoxic activity. However, the precise mechanism of its selective cytotoxic activity is not known. CPENSpm treatment results in the superinduction of the polyamine catabolic enzyme spermidine/spermine N~1- acetyltransferase (SSAT) in sensitive cell types and has been demonstrated to induce programmed cell death (PCD). The catalysis of polyamines by the SSAT/polyamine oxidase (PAO) pathway produces H_2O_2 as one product, suggesting that PCD produced by CPENSpm may be, in part, due to oxidative stress as a result of H_2O_2 production.
机译:N〜1-乙基-N〜11-[(环丙基)甲基] -4,8,-二氮杂十二烷(CPENSpm)是一种多胺类似物,代表一类新的抗肿瘤药物,表现出表型特异性细胞毒活性。然而,其选择性细胞毒性活性的确切机制尚不清楚。 CPENSpm处理导致敏感细胞类型中多胺分解代谢酶亚精胺/亚精胺N〜1-乙酰转移酶(SSAT)的超诱导,并且已被证明可诱导程序性细胞死亡(PCD)。通过SSAT /多胺氧化酶(PAO)途径催化的多胺产生H_2O_2作为一种产物,这表明CPENSpm产生的PCD可能部分是由于H_2O_2产生的氧化应激。

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