Design, synthesis, and structure-activity relationship of programmed cell death-1/programmed cell death-ligand 1 interaction inhibitors bearing a benzo[d]isothiazole scaffold
作者:Hao Chen、Ke Wang、Yang Yang、Xupeng Huang、Xinyan Dai、Zhiqiang Feng
DOI:10.1016/j.ejmech.2021.113377
日期:2021.5
scaffold were developed, among which CH20 exhibited promising activity, with an IC50 value of 8.5 nM. Further cell-based PD-1/PD-L1 blockade bioassays indicated that CH20 can inhibit the PD-1/PD-L1 interaction at the cellular level, with an EC50 value of 5.6 μM CH20 could have better potency in restoring the activity of effector cells, as the maximal luminescence values (RLUmax) of CH20 were equivalent
程序性细胞死亡-1(PD-1)/程序性细胞死亡配体1(PD-L1)途径的阻断是免疫治疗的一种有吸引力的策略。开发了一系列带有苯并[d]异噻唑支架的新型化合物,其中CH20表现出良好的活性,IC 50值为8.5 nM。进一步的基于细胞的PD-1 / PD-L1阻断生物测定表明,CH20可以在细胞水平上抑制PD-1 / PD-L1的相互作用,EC 50值为5.6μMCH20可能具有更好的恢复其活性的功效。效应细胞,作为CH20的最大发光值(RLU max)等同于PD-L1 mAb。CH20与PD-L1二聚体复合物(PDB ID:6R3K)的对接分析证实,CH20是开发PD-1 / PD-L1相互作用抑制剂的有前途的先导化合物。初步的结构活性关系进行了研究,目的是将来的药物开发。