Epigenetic Multiple Ligands: Mixed Histone/Protein Methyltransferase, Acetyltransferase, and Class III Deacetylase (Sirtuin) Inhibitors
作者:Antonello Mai、Donghang Cheng、Mark T. Bedford、Sergio Valente、Angela Nebbioso、Andrea Perrone、Gerald Brosch、Gianluca Sbardella、Floriana De Bellis、Marco Miceli、Lucia Altucci
DOI:10.1021/jm701595q
日期:2008.4.1
A number of new compounds bearing two ortho-bromo- and ortho, ortho-dibromophenol moieties linked through a saturated/unsaturated, linear/(poly)cyclic spacer (compounds 1- 9) were prepared as simplified analogues of AMI-5 (eosin), a recently reported inhibitor of both protein arginine and histone lysine methyltransferases (PRMTs and HKMTs). Such compounds were tested against a panel of PRMTs (RmtA
制备了许多带有两个通过饱和/不饱和,线性/(多)环间隔基连接的邻-溴和邻,邻-二溴苯酚部分的新化合物(化合物1-9),作为AMI-5(曙红)的简化类似物。是最近报道的精氨酸和组蛋白赖氨酸甲基转移酶(PRMT和HKMT)抑制剂。使用组蛋白和非组蛋白蛋白作为底物,针对一组PRMT(RmtA,PRMT1和CARM1)和人SET7(HKMT)对此类化合物进行了测试。还对它们进行了HAT和SIRT筛选,因为它们在结构上与某些HAT和/或SIRT调制器有关。根据抑制数据,某些测试化合物(1b,1c,4b,4f,4j,4l,7b和7f)能够以相似的效力抑制PRMT,HKMT,HAT和SIRT,因此表现为这些表观遗传靶标(epi-MLs)的多个配体。当在人类白血病U937细胞系上进行测试时,epi-MLs诱导高凋亡水平[即40.7%(4l)和42.6%(7b)]和/或大规模的剂量依赖性细胞分化[即95.2%(1c)]和96