Discovery of Novel Resorcinol Dibenzyl Ethers Targeting the Programmed Cell Death-1/Programmed Cell Death–Ligand 1 Interaction as Potential Anticancer Agents
作者:Binbin Cheng、Yichang Ren、Xiaoge Niu、Wei Wang、Shuanghu Wang、Yingfeng Tu、Shuwen Liu、Jin Wang、Deying Yang、Guochao Liao、Jianjun Chen
DOI:10.1021/acs.jmedchem.0c00574
日期:2020.8.13
Novel small molecule compounds based on various scaffolds including chalcone, flavonoid, and resorcinol dibenzyl ether were designed and tested for their inhibitory activity against the Programmed Cell Death-1/Programmed Cell Death-Ligand 1 (PD-1/PD-L1) pathway. Among them, compound NP19 inhibited the human PD-1/PD-L1 interaction with IC50 values of 12.5 nM in homogeneous time-resolved fluorescence
设计并测试了基于各种骨架(包括查尔酮,类黄酮和间苯二酚二苄基醚)的新型小分子化合物,并对它们对程序化细胞死亡-1 /程序化细胞死亡配体1(PD-1 / PD-L1)途径的抑制活性进行了测试。其中,化合物NP19在均相时间分辨荧光(HTRF)结合试验中以12.5 nM的IC 50值抑制人PD-1 / PD-L1相互作用。此外,在Hep3B / OS-8 / hPD-L1和CD3 T细胞的共培养模型中,NP19剂量依赖性地提高了IFN-γ的产生。此外,NP19在体内显示出重要的在两种不同的小鼠癌症模型(黑色素瘤B16-F10肿瘤模型和H22肝癌肿瘤模型)中具有抗肿瘤功效。此外,H&E染色和流式细胞仪数据表明NP19激活了肿瘤中的免疫微环境,这可能有助于其抗肿瘤作用。这项工作表明,NP19是一种有希望的前导化合物,可以作为靶向PD-1 / PD-L1途径的新一代小分子抑制剂进行进一步开发。