作者:Gang Shen、Brian S. J. Blagg
DOI:10.1021/ol050580a
日期:2005.5.1
and geldanamycin are potent inhibitors of the Hsp90 protein folding machinery. Radester is a hybrid composed of radicicol's resorcinol ring and geldanamycin's quinone through an isopropyl ester. Radester was prepared, and the cytotoxicity of it and the corresponding hydroquinone were determined in MCF-7 breast cancer cells to be 13.9 and 7.1 microM, respectively. Protein degradation assays were performed
[反应:请参见文字]。抗肿瘤抗生素radicicol和geldanamycin是Hsp90蛋白折叠机制的有效抑制剂。Radester是由Radcicol的间苯二酚环和Geldanamycin的醌通过异丙酯组成的杂化物。制备了Radester,并确定其在MCF-7乳腺癌细胞中的细胞毒性分别为13.9和7.1 microM。对Hsp90依赖的客户蛋白Her-2和Raf进行蛋白降解测定,以将Hsp90抑制与细胞毒性相关联。