Nucleosides and nucleotides. 176. 2′-deoxy-2′-hydroxylaminocytidine: A new antitumor nucleoside that inhibits DNA synthesis although it has a ribonucleoside structure
作者:Akira Ogawa、Satoshi Shuto、Osamu Inanami、Mikinori Kuwabara、Motohiro Tanaka、Takuma Sasaki、Akira Matsuda
DOI:10.1016/s0960-894x(98)00336-9
日期:1998.7
The design and synthesis of potential antitumor antimetabolites 2'-deoxy-2'-hydroxylaminouridine (2'-DHAU) and -cytidine (2'-DHAC) are described. We found that 2'-DHAC in neutral solution generated 2'-aminoxy radicals at room temperature. 2'-DHAC inhibited the growth of L1210 and KB cells, with IC50 values of 1.58 and 1.99 microM, respectively, more potently than 2'-DHAU, with IC50 values of 34.5 and
描述了潜在的抗肿瘤抗代谢物2'-脱氧-2'-羟基laminouridine(2'-DHAU)和-胞苷(2'-DHAC)的设计和合成。我们发现,中性溶液中的2'-DHAC在室温下会生成2'-氨基氧自由基。2'-DHAC抑制L1210和KB细胞的生长,IC50值分别为1.58和1.99 microM,比2'-DHAU抑制力更强,IC50值分别为34.5和27.3 microM。2'-DHAC对9种人类细胞系有效,IC50值在微摩尔范围内。还使用小鼠白血病P388模型检查了2'-DHAC的体内抗肿瘤活性,该模型的T / C值为167%。尿苷/胞苷激酶将2'-DHAC磷酸化对于其细胞毒性至关重要,这是使用几种常见核苷进行的竞争实验所表明的。