cytokinesis. Currently a number of Aurora kinase inhibitors with different isoform selectivities are being evaluated in the clinic. Herein we report the discovery and characterization of 21c (AC014) and 21i (AC081), two structurally novel, potent, kinome-selective pan-Aurora inhibitors. In the human colon cancer cell line HCT-116, both compounds potently inhibit histone H3 phosphorylation and cell proliferation
丝氨酸/苏
氨酸蛋白激酶Aurora A,B和C在细胞有丝分裂和胞质分裂中起重要作用。目前,临床上正在评估许多具有不同同工型选择性的
Aurora激酶抑制剂。在此,我们报告21c(AC014)和21i的发现和表征(AC081),这是两种结构新颖,有效的,对激酶组有选择性的泛Aurora
抑制剂。在人类结肠癌
细胞系HCT-116中,两种化合物均能有效抑制组蛋白H3
磷酸化和细胞增殖,同时诱导8N多倍体。两种化合物均以间歇性方案静脉内给药,在裸鼠HCT-116肿瘤异种移植模型中显示出有效且持久的抗肿瘤活性,并表现出良好的体内耐受性。综上所述,这些数据支持21c和21i的进一步开发,将其作为治疗实体瘤和血液系统恶性肿瘤的潜在治疗剂。