Structure-activity relationship for bromoindole carbaldehydes: Effects on the sea urchin embryo cell cycle
作者:Isabelle Moubax、Nathalie Bontemps-Subielos、Bernard Banaigs、Georges Combaut、Philippe Huitorel、Jean-Pierre Girard、Danielle Pesando
DOI:10.1002/etc.5620200319
日期:2001.3
marine ascidian Stomoza murravi. A series of 13 derivatives, three natural and 10 synthetic (brominated and N-methylated), were examined for their effects on cell division of sea urchin eggs. These derivatives were shown to inhibit the first mitotic cycle in a concentration-dependent manner. By comparing the IC50 values with the structure of the various molecules, we were able to determine that bromination
从热带海洋海鞘 Stomoza murravi 中分离出吲哚-3-甲醛的天然衍生物。检测了一系列 13 种衍生物,三种天然衍生物和 10 种合成衍生物(溴化和 N-甲基化)对海胆卵细胞分裂的影响。这些衍生物显示出以浓度依赖性方式抑制第一个有丝分裂周期。通过将 IC50 值与各种分子的结构进行比较,我们能够确定溴化增加了化合物的细胞毒性,当溴添加到碳数 2 时出现最大值,而添加 N-甲基化显着降低这些相同化合物的细胞毒性仅在碳 2 处溴化。该化合物家族的生物活性已被表征,通过详细研究添加最活跃的衍生物 2,5,6-tribromoindole-3-carbaldehyde,在受精海胆卵的第一个有丝分裂周期中大分子合成和细胞骨架重组。染色质和微管的荧光定位表明,2,5,6-三溴吲哚-3-甲醛允许原核迁移和融合,但阻止了染色质的凝聚、核膜破裂和双极有丝分裂纺锤体组装,从而导致海胆胚胎发生在有丝分裂的开始。这里假设这种表型可能是由于对