Design, synthesis and evaluation of 4,5-di-substituted acridone ligands with high G-quadruplex affinity and selectivity, together with low toxicity to normal cells
作者:Francisco Cuenca、Michael J.B. Moore、Karin Johnson、Bérangère Guyen、Anne De Cian、Stephen Neidle
DOI:10.1016/j.bmcl.2009.07.033
日期:2009.9
A series of 4,5-di-substituted acridones have been designed and synthesized. Several compounds show high affinity for telomeric G-quadruplex DNA in classical and competition FRET assays, together with low duplex DNA affinity, although they do not show activity in a telomerase assay or evidence of telomere shortening. They have low toxicity against a panel of cancer cell lines and a normal human fibroblast
已经设计和合成了一系列的4,5-二取代的cri啶。几种化合物在经典和竞争性FRET分析中显示出对端粒G-四链体DNA的高亲和力,而在低端双链DNA亲和性中则低,尽管它们在端粒酶分析中没有活性,也没有端粒缩短的迹象。它们对一组癌细胞系和正常人成纤维细胞系具有低毒性,并在MCF7和A549癌细胞系中产生有效的基于衰老的长期生长停滞。