Discovery of a Potent and Selective CCR4 Antagonist That Inhibits T<sub>reg</sub> Trafficking into the Tumor Microenvironment
作者:Jeffrey J. Jackson、John M. Ketcham、Ashkaan Younai、Betty Abraham、Berenger Biannic、Hilary P. Beck、Minna H. T. Bui、David Chian、Gene Cutler、Raymond Diokno、Dennis X. Hu、Scott Jacobson、Emily Karbarz、Paul D. Kassner、Lisa Marshall、Jenny McKinnell、Cesar Meleza、Abood Okal、Deepa Pookot、Maureen K. Reilly、Omar Robles、Hunter P. Shunatona、Oezcan Talay、James R. Walker、Angela Wadsworth、David J. Wustrow、Mikhail Zibinsky
DOI:10.1021/acs.jmedchem.9b00506
日期:2019.7.11
the TME can potentiate antitumor immune responses. We developed a novel series of potent, orally bioavailable small molecule antagonists of CCR4. From this series, several compounds exhibited high potency in distinct functional assays in addition to good in vitro and in vivo ADME properties. The design, synthesis, and SAR of this series and confirmation of its in vivo activity are reported.
将抑制性CD4 + FOXP3 +调节性T细胞(Treg)招募到肿瘤微环境(TME)可能会削弱接受免疫肿瘤学(IO)药物治疗的患者的抗肿瘤反应。人Treg表达CCR4,可以通过CC趋化因子配体CCL17和CCL22募集到TME。在某些癌症中,Treg积累与患者预后不良相关。临床前数据表明,防止Treg募集并增加TME中活化的效应T细胞(Teff)的数量可以增强抗肿瘤免疫反应。我们开发了一系列新颖的,有效的,口服生物利用的CCR4小分子拮抗剂。从该系列中,除了良好的体外和体内ADME特性外,几种化合物在独特的功能测定中还显示出强大的效用。设计,综合,