作者:Hongwu Liu、Jianwei Wu、Ying Ge、Aibo Li、Jia Li、Zhengshi Liu、Yungen Xu、Qingxiang Xu、Yuyan Li
DOI:10.1016/j.bmc.2018.01.017
日期:2018.3
A novel series of non-peptide proteasome inhibitors (PIs) that act on chymotrypsin-like (ChT-L) of the proteasome were developed. These PIs bearing 4-aromatic sulfonyl naphthalene-based scaffold and Leu-boronic moiety as covalent bonding group displayed far better activity than PI-8182 for inhibiting ChT-L in preliminary biological activity test. The results showed that 2a (IC50 = 6.942 μM, MCF-7)
开发了一系列新的非肽蛋白酶体抑制剂(PIs),可作用于蛋白酶体的胰凝乳蛋白酶样(ChT-L)。在初步的生物学活性测试中,这些带有4-芳族磺酰基萘基支架和Leu-硼基作为共价键的PI表现出比PI-8182更好的抑制ChT-L的活性。结果表明,2a中(IC 50 = 6.942μM,MCF-7)和图2c(IC 50 = 6.905μM,MCF-7)显示更高的抗增殖活性要比硼替佐米(IC 50 = 18.37μM,MCF-7)根据我们的实验条件。此外,在微粒体稳定性测定中,2a表现出优异的代谢稳定性,40分钟后剩余56%,而Bortezomib则剩余约30%。化合物2a,2c作为有希望的先导化合物出现,用于开发新型非肽硼酸酯PI。