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Design, Synthesis, and Evaluation of PD-1/PD-L1 Antagonists Bearing a Benzamide Scaffold.

Lu LuZhihao QiTianyu WangXiangyu ZhangKuojun ZhangKaizhen WangYao ChengYibei XiaoZheng LiSheng Jiang
Published in: ACS medicinal chemistry letters (2022)
Several antibodies targeting programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) have been approved by the U.S. Food and Drug Administration (FDA) for cancer therapy. Although many small-molecule inhibitors of the PD-1/PD-L1 pathway have been reported, no small-molecule inhibitors have been approved for cancer treatment. In this work, a series of novel benzamide derivatives were designed, synthesized, and evaluated to find effective inhibitors of the PD-1/PD-L1 interaction. The most potent compound D2 exhibited better activity than that of BMS202, with an IC 50 of 16.17 nM. D2 could activate the antitumor immunity of T cells efficiently in PBMCs. The proposed binding mode of compound D2 was investigated by docking analysis. These results indicate that compound D2 is a promising lead compound that can be used for further development.
Keyphrases
  • small molecule
  • drug administration
  • cancer therapy
  • protein protein
  • drug delivery
  • binding protein
  • data analysis
  • high speed
  • structure activity relationship