Synthesis and Biological Activity of Peptide α-Ketoamide Derivatives as Proteasome Inhibitors
作者:Salvatore Pacifico、Valeria Ferretti、Valentina Albanese、Anna Fantinati、Eleonora Gallerani、Francesco Nicoli、Riccardo Gavioli、Francesco Zamberlan、Delia Preti、Mauro Marastoni
DOI:10.1021/acsmedchemlett.9b00233
日期:2019.7.11
Proteasome activity affects cell cycle progression as well as the immune response, and it is largely recognized as an attractive pharmacological target for potential therapies against several diseases. Herein we present the synthesis of a series of pseudodi/tripeptides bearing at the C-terminal position different α-ketoamide moieties as pharmacophoric units for the interaction with the catalytic threonine
蛋白酶体活性影响细胞周期进程以及免疫应答,并且它被广泛认为是针对几种疾病的潜在疗法的有吸引力的药理学靶标。在本文中,我们提出了在C末端位置带有不同α-酮酰胺部分的一系列假二/三肽的合成,作为药效学单元,用于与维持蛋白酶体蛋白水解作用的苏氨酸残基相互作用。其中,我们确定了1-萘基衍生物13c是20S蛋白酶体β5亚基的有效和选择性抑制剂,在体外表现出纳摩尔效价(β5IC 50 = 7 nM,β1IC 50 = 60μM,β2IC 50> 100μM)。此外,它显着抑制人结肠直肠癌细胞系HCT116的增殖并诱导其凋亡。