Development of Novel Selective Peptidomimetics Containing a Boronic Acid Moiety, Targeting the 20S Proteasome as Anticancer Agents
作者:Kety Scarbaci、Valeria Troiano、Roberta Ettari、Andrea Pinto、Nicola Micale、Carmen Di Giovanni、Carmen Cerchia、Tanja Schirmeister、Ettore Novellino、Antonio Lavecchia、Maria Zappalà、Silvana Grasso
DOI:10.1002/cmdc.201402075
日期:2014.5.28
This paper describes the design, synthesis, and biological evaluation of peptidomimetic boronates as inhibitors of the 20S proteasome, a validated target in the treatment of multiple myeloma. The synthesized compounds showed a good inhibitory profile against the ChT‐L activity of 20S proteasome. Compounds bearing a β‐alanine residue at the P2 position were the most active, that is, 3‐ethylphenylamino
本文描述了拟肽样硼酸盐作为20S蛋白酶体抑制剂的设计,合成和生物学评估,20S蛋白酶体是治疗多发性骨髓瘤的有效靶点。合成的化合物对20S蛋白酶体的ChT-L活性表现出良好的抑制作用。在P2位置带有β-丙氨酸残基的化合物活性最高,即3-乙基苯氨基和4-甲氧基苯基氨基(R)-1- 3- [4-(取代)-2--2-氧代吡啶-1(2 H)-基]丙酰胺基} -3-甲基丁基硼酸(分别为3 c和3 d),这些衍生物的抑制常数(K i)为17和20 n M, 分别。此外,它们共抑制交谷氨酰肽水解酶的活性(图3c,ķ我= 2.57μ中号; 3 d,ķ我= 3.81μ中号)。没有记录到对牛胰α-胰凝乳蛋白酶的抑制作用,因此证实了对靶酶的选择性。3 c和相关抑制剂对接研究到酵母蛋白酶体揭示了特异性的结构基础。在美国国家癌症研究所进行了针对60种人类肿瘤细胞系的生长抑制作用评估。在选定的化合物中,3 c显示出50%的生长抑制(GI