Bioisosteric replacements of the indole moiety for the development of a potent and selective PI3Kδ inhibitor: Design, synthesis and biological evaluation
作者:Chengbin Yang、Chenyue Xu、Zhipeng Li、Yi Chen、Tianze Wu、Hui Hong、Mingzhu Lu、Yu Jia、Yongtai Yang、Xiaofeng Liu、Mingli Deng、Zhenxia Chen、Qingquan Li、Yun Ling、Yaming Zhou
DOI:10.1016/j.ejmech.2021.113661
日期:2021.11
Based on indole scaffold, a potent and selective phosphoinositide 3-kinase delta (PI3Kδ) inhibitor, namely FD223, was developed by the bioisosteric replacement drug discovery approach and studied for the treatment of acute myeloid leukemia (AML). In vitro studies revealed that FD223 displays high potency (IC50 = 1 nM) and selectivity (29–51 fold over other PI3K isoforms) against PI3Kδ, and exhibits
基于吲哚支架,一种有效的选择性磷酸肌醇 3-激酶δ (PI3K δ ) 抑制剂,即FD223,是通过生物等排替代药物发现方法开发的,并研究用于治疗急性髓系白血病 (AML)。体外研究表明,FD223 对 PI3K δ显示出高效力 (IC 50 = 1 nM) 和选择性(比其他 PI3K 异构体高 29-51 倍),并显示出对 AML 细胞系(MOLM-16、HL- 60、EOL-1 和 KG-1)通过抑制 p-AKT Ser473 从而导致细胞周期中的 G1 期停滞。进一步考虑到FD223的有利药代动力学 (PK) 特征,在体内在裸鼠中使用异种移植模型对研究进行了评估,证实了其显着的抗肿瘤功效,同时没有可观察到的毒性。所有这些结果都与 Idelalisib (CAL-101) 的阳性组相当,表明FD223作为一种有前景的 PI3K δ抑制剂有潜力进一步发展,用于治疗白血病等白血病。