Discovery of a potent inhibitor of MELK that inhibits expression of the anti-apoptotic protein Mcl-1 and TNBC cell growth
作者:Ramakrishna Edupuganti、Juliana M. Taliaferro、Qiantao Wang、Xuemei Xie、Eun Jeong Cho、Fnu Vidhu、Pengyu Ren、Eric V. Anslyn、Chandra Bartholomeusz、Kevin N. Dalby
DOI:10.1016/j.bmc.2017.03.018
日期:2017.5
suitable target for specific inhibitors. Maternal embryonic leucine zipper kinase (MELK) is highly expressed in TNBC, where level of overexpression correlates with poor prognosis and an aggressive disease course. Herein, we describe the discovery through targeted kinase inhibitor library screening, and structure-guided design of a series of ATP-competitive indolinone derivatives with subnanomolar inhibition
尽管最近在分子定向疗法方面取得了进展,但三阴性乳腺癌(TNBC)仍然是最具有侵略性的乳腺癌形式之一,仍然没有合适的特异性抑制剂靶标。母体胚胎亮氨酸拉链激酶(MELK)在TNBC中高度表达,其中过表达水平与不良预后和侵袭性疾病进程相关。在这里,我们描述了通过针对性的激酶抑制剂库筛选,以及一系列对MELK具有亚纳摩尔抑制常数的ATP竞争性吲哚酮衍生物的结构指导设计,发现了这一发现。最有效的化合物17抑制抗凋亡蛋白Mcl-1的表达,并抑制TNBC细胞的增殖,从而对表达高水平MELK的细胞表现出选择性。