Synthesis and Antitumor Activity Evaluation of a Novel Combi-nitrosourea Prodrug: BGCNU
作者:Yameng Wang、Ting Ren、Xinxin Lai、Guohui Sun、Lijiao Zhao、Na Zhang、Rugang Zhong
DOI:10.1021/acsmedchemlett.6b00358
日期:2017.2.9
Chloroethylnitrosoureas (CENUs) are an important type of alkylating agent employed in the clinical treatment of cancer. However, the anticancer efficacy of CENUs is greatly decreased by a DNA repairing enzyme, O6-alkylguanine-DNA alkyltransferase (AGT), by preventing the formation of interstrand cross-links (ICLs). In this study, a combi-nitrosourea prodrug, namely, N-(2-chloroethyl)-N'-2-(O6-benzyl-9-guanine)ethyl-N-nitrosourea
氯乙基亚硝基脲(CENU)是在癌症的临床治疗中使用的一种重要类型的烷基化剂。然而,通过防止链间交联(ICL)的形成,DNA修复酶O6-烷基鸟嘌呤-DNA烷基转移酶(AGT)大大降低了CENUs的抗癌功效。在这项研究中,一种组合亚硝基脲前药,即N-(2-氯乙基)-N'-2-(O6-苄基-9-鸟嘌呤)乙基-N-亚硝基脲(BGCNU),其具有O6-苄基鸟嘌呤(合成了O6-BG)衍生物和CENU药效团,并评估了其诱导ICL的能力。与临床使用的CENU化疗ACNU,BCNU以及它们各自与O6-BG的组合相比,目标化合物在人脑胶质瘤细胞中的细胞毒性明显更高。在AGT熟练的细胞中,