Highly Selective, Potent, and Oral mTOR Inhibitor for Treatment of Cancer as Autophagy Inducer
作者:Qingxiang Guo、Chenhua Yu、Chao Zhang、Yongtao Li、Tianqi Wang、Zhi Huang、Xin Wang、Wei Zhou、Yao Li、Zhongxiang Qin、Cheng Wang、Ruifang Gao、Yongwei Nie、Yakun Ma、Yi Shi、Jianyu Zheng、Shengyong Yang、Yan Fan、Rong Xiang
DOI:10.1021/acs.jmedchem.7b01402
日期:2018.2.8
scaffold, we designed and identified a highly selective, potent and oral mTOR inhibitor, 9m. Compound 9m showed low nanomolar activity against mTOR (IC50 = 7 nM) and greater selectivity over the related PIKK family kinases, which demonstrated only modest activity against 3 out of the 409 protein kinases. In vitro assays, compound 9m exhibited high potency against human breast and cervical cancer cells and
基于新型吡嗪并[2,3 - c ]喹啉-2(1 H)-one支架,我们设计并鉴定了一种高度选择性,有效和口服的mTOR抑制剂9m。化合物9m对mTOR表现出较低的纳摩尔活性(IC 50 = 7 nM),并且相对于相关的PIKK家族激酶具有更高的选择性,对409种蛋白激酶中的3种仅表现出适度的活性。在体外测定中,化合物9m对人乳腺癌和宫颈癌细胞表现出高效力,并诱导肿瘤细胞周期停滞和自噬。9m抑制了mTORC1(pS6和p4E-BP1)和mTORC2(pAKT(S473))底物的细胞磷酸化。在T-47D异种移植小鼠模型中,口服9m化合物导致明显的肿瘤消退而没有明显的毒性。另外,该化合物显示出良好的药代动力学。总的来说,由于其高效力和选择性,化合物9m可用作mTOR候选药物。