Synthesis and biological activity of peptide proline-boronic acids as proteasome inhibitors
作者:Liqiang Han、Yanzhao Wen、Ridong Li、Bo Xu、Zemei Ge、Xin Wang、Tieming Cheng、Jingrong Cui、Runtao Li
DOI:10.1016/j.bmc.2017.05.049
日期:2017.8
and proteasome inhibition against three subunits. The results indicated that series II have much better biological activities than series I. The compound II-7 exhibited not only excellent biological activities with IC50 values of nM level in both cell and proteasome models, but also much better subunit selectivity. Thus, proline-boronic acid as warhead is reasonable in the design of proteasome inhibitors
基于脯氨酸硼酸作为药效基团在激酶抑制剂中的应用以及我们先前的研究结果,以脯氨酸硼酸为战斗部,使用了两个系列的肽脯氨酸硼酸,二肽脯氨酸硼酸(I)和三肽设计并合成了脯氨酸硼酸(II)。首先评估所有合成的化合物对MGC803细胞的生物学活性,然后选择最佳的化合物II-7来测试其在六种人类肿瘤细胞系上的抗肿瘤谱以及对三个亚基的蛋白酶体抑制作用。结果表明,系列II具有比系列I更好的生物学活性。化合物II-7在细胞和蛋白酶体模型中不仅表现出优异的生物学活性(IC 50值为nM),而且亚单位选择性也好得多。因此,脯氨酸硼酸作为战斗部在蛋白酶体抑制剂的设计中是合理的。