作者:Anna Baldisserotto、Mauro Marastoni、Stella Fiorini、Loretta Pretto、Valeria Ferretti、Riccardo Gavioli、Roberto Tomatis
DOI:10.1016/j.bmcl.2008.02.016
日期:2008.3
The 20S proteasome is a multicatalytic protease complex responsible for the degradation of many proteins in mammalian cells. Specific inhibition of proteasome enzymatic subunits represents a topic of great interest for the development of new drug therapies. Following our previous development of a new class of peptide-based inhibitors bearing a C-terminal vinyl ester residue as a pharmacophoric unit
20S蛋白酶体是一种多催化蛋白酶复合物,负责哺乳动物细胞中许多蛋白质的降解。蛋白酶体酶亚基的特异性抑制代表了对开发新药物疗法的极大兴趣。继我们先前开发的带有C端乙烯基酯残基的新型基于肽的抑制剂后,它们作为药效团单元能够与苏氨酸催化相互作用,我们在此报告了一系列新的乙烯基酯的合成和生物学性质环肽类似物。这些衍生物中的一些已显示在纳摩尔浓度下抑制蛋白酶体的胰凝乳蛋白酶样活性,并且发现它们的效力取决于四肽环状部分的大小。