Nitrobenzyl carbamate prodrugs of enediynes for nitroreductase gene-directed enzyme prodrug therapy (GDEPT)

被引:32
作者
Hay, MP [1 ]
Wilson, WR [1 ]
Denny, WA [1 ]
机构
[1] Univ Auckland, Fac Med & Hlth Sci, Auckland Canc Soc Res Ctr, Auckland 1, New Zealand
关键词
D O I
10.1016/S0960-894X(99)00627-7
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
The synthesis and evaluation of the 4-nitrobenzylcarbamate enediyne 6 and related compounds as prodrugs activated by a nitroreductase enzyme (NTR) from E. coli B is described. Expression of NTR in three different cell lines gives increases in cytotoxicity of 21- to 135-fold for 6 (IC50 values 13-24 nM in the NTR expressing lines), indicating its potential as a prodrug for NTR-mediated Gene-Directed Enzyme Prodrug Therapy. The cytotoxicity of 6 and related enediynes is shown to be oxygen-dependent, especially in nucleotide excision repair-proficient cells, which might limit activity in hypoxic regions of tumours. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3417 / 3422
页数:6
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