Discovery of 4-Arylindolines Containing a Thiazole Moiety as Potential Antitumor Agents Inhibiting the Programmed Cell Death-1/Programmed Cell Death-Ligand 1 Interaction
作者:Mingze Qin、Yangyang Meng、Haoshen Yang、Lei Liu、Haotian Zhang、Simeng Wang、Chunyang Liu、Xia Wu、Di Wu、Ye Tian、Yunlei Hou、Yanfang Zhao、Yajing Liu、Congjun Xu、Lihui Wang
DOI:10.1021/acs.jmedchem.0c01958
日期:2021.5.13
Through specific structural modification of a 4-phenylindoline precursor, new 4-arylindolines containing a thiazole moiety were developed and found to be promising modulators of the programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) axis. Compound A30 exhibited outstanding biochemical activity, with an IC50 of 11.2 nM in a homogeneous time-resolved fluorescence assay. In the cell-based
通过对4-苯基二氢吲哚前体进行特定的结构修饰,开发了含有噻唑部分的新型4-芳基吲哚,并发现它们是编程性细胞死亡-1(PD-1)/编程性细胞死亡配体1(PD-L1)的有前途的调节剂)轴。化合物A30表现出出色的生化活性,在均相时间分辨荧光测定中的IC 50为11.2 nM。在基于细胞的测定中,A30显着促进了IFN-γ的分泌并挽救了被PD-1激活抑制的T细胞增殖。此外,A30在小鼠4T1乳腺癌模型中显示出良好的体内抗肿瘤活性。此外,在小鼠CT26结肠癌模型中,A30有力地抑制了CT26 / PD-L1肿瘤的生长,但没有明显影响CT26 / PD-L1肿瘤的生长。流式细胞仪分析的结果表明,A30通过激活免疫微环境抑制肿瘤的生长。我们得出的结论是,A30是进一步开发PD-1 / PD-L1相互作用抑制剂作为抗肿瘤药物的新起点。