The effect of sulfonate leaving groups on the hypoxia-selective toxicity of nitro analogs of the duocarmycins
作者:Amir Ashoorzadeh、Graham J. Atwell、Frederik B. Pruijn、William R. Wilson、Moana Tercel、William A. Denny、Ralph J. Stevenson
DOI:10.1016/j.bmc.2011.06.073
日期:2011.8
dol-1-yl)methyl sulfonate (nitroCBI) prodrugs containing sulfonate leaving groups undergo hypoxia-selective metabolism to form potent DNA minor groove alkylating agents. They were evaluated (along with chloride leaving group analogs for comparison) for their cytotoxicity against cultures of SKOV3 and HT29 human tumor cell lines under both aerobic and hypoxic conditions. Sulfonates with neutral side
一系列含有磺酸盐离去基团的3-取代的(5-硝基-2,3-二氢-1 H-苯并[ e ]吲哚-1-基)甲基磺酸盐(nitroCBI)前药经历缺氧选择性代谢,形成有效的DNA小分子沟槽烷基化剂。评估了它们(与氯离去基团类似物进行比较)在有氧和低氧条件下对SKOV3和HT29人肿瘤细胞系培养物的细胞毒性。具有中性侧链的磺酸盐(例如5,6,7-三甲氧基吲哚; TMI)在SKOV3细胞中显示出始终比相应的氯代类似物(2.8-3.1)更高的低氧细胞毒性比(HCR)(34-246),但是这些趋势确实不适用于带有阳离子或极性中性侧链的化合物。