Discovery and Biological Activity of 6BrCaQ as an Inhibitor of the Hsp90 Protein Folding Machinery
作者:Davide Audisio、Samir Messaoudi、Lukasz Cegielkowski、Jean-François Peyrat、Jean-Daniel Brion、Délphine Methy-Gonnot、Christine Radanyi、Jack-Michel Renoir、Mouâd Alami
DOI:10.1002/cmdc.201000489
日期:2011.5.2
the simplified 3‐aminoquinolein‐2‐one analogue 2 b (6BrCaQ), which manifests micromolar activity against a panel of cancer cell lines. The molecular signature of Hsp90 inhibition was assessed by depletion of standard known Hsp90 client proteins. Finally, processing and activation of caspases 7, 8, and 9, and the subsequent cleavage of PARP by 6BrCaQ, suggest stimulation of apoptosis through both extrinsic
热休克蛋白90(Hsp90)由于其在与细胞增殖和生存能力相关的多种信号通路的十字路口的作用而成为合理癌症治疗发展中的重要目标。在这里,合成了一系列新型的Hsp90抑制剂,其中含有一个quinolein-2-one支架,并在细胞增殖试验中进行了评估。这些结构-活性关系研究的结果使鉴定简化的3-氨基喹诺酮-2-酮类似物2 b成为可能。(6BrCaQ),对一组癌细胞系表现出微摩尔活性。Hsp90抑制的分子特征是通过消耗已知的标准Hsp90客户蛋白质来评估的。最后,胱天蛋白酶7、8和9的加工和激活以及随后的6BrCaQ对PARP的切割,提示通过外在和内在途径刺激凋亡。