Discovery and Characterization of 1<i>H</i>-1,2,3-Triazole Derivatives as Novel Prostanoid EP4 Receptor Antagonists for Cancer Immunotherapy
作者:Jun-Jie Yang、Wei-Wei Yu、Long-Long Hu、Wen-Juan Liu、Xian-Hua Lin、Wei Wang、Qiansen Zhang、Pei-Li Wang、Shuo-Wen Tang、Xin Wang、Mingyao Liu、Weiqiang Lu、Han-Kun Zhang
DOI:10.1021/acs.jmedchem.9b01269
日期:2020.1.23
The prostanoid EP4 receptor is one of the key receptors associated with inflammatory mediator PGE2-elicited immunosuppression in the tumor microenvironment. Blockade of EP4 signaling to enhance immunity-mediated tumor elimination has recently emerged as a promising strategy for cancer immunotherapy. In our efforts to discover novel subtype-selective EP4 antagonists, we designed and synthesized a class
前列腺素EP4受体是与炎症介质PGE 2在肿瘤微环境中引起的免疫抑制相关的关键受体之一。近年来,EP4信号传导的阻断增强了免疫介导的肿瘤消除作用,已成为一种有前景的癌症免疫疗法策略。在我们努力发现新型亚型选择性EP4拮抗剂的过程中,我们设计并合成了一类基于1H-1,2,3-三唑的配体,这些配体对人EP4受体具有低纳摩尔拮抗作用,并且具有出色的亚型选择性。最有前途的化合物59在EP4钙流量和cAMP响应元件报告基因分析中表现出个位数的纳摩尔浓度,并有效抑制巨噬细胞中多个免疫抑制相关基因的表达。基于其良好的ADMET性能,选择化合物59用于进一步的体内生物学评估。口服给予化合物59可显着抑制小鼠CT26结肠癌模型中的肿瘤生长,并伴随肿瘤组织中细胞毒性T淋巴细胞的浸润增强。