Nucleotide Analog ARL67156 as a Lead Structure for the Development of CD39 and Dual CD39/CD73 Ectonucleotidase Inhibitors
作者:Laura Schäkel、Constanze C. Schmies、Riham M. Idris、Xihuan Luo、Sang-Yong Lee、Vittoria Lopez、Salahuddin Mirza、The Hung Vu、Julie Pelletier、Jean Sévigny、Vigneshwaran Namasivayam、Christa E. Müller
DOI:10.3389/fphar.2020.01294
日期:——
compounds’ potency. Selected inhibitors were additionally evaluated in an orthogonal, malachite green assay versus the natural substrate ATP. The most potent CD39 inhibitors of the present series were ARL67156 and its derivatives 31 and 33 with Ki values of around 1 µM. Selectivity studies showed that all three nucleotide analogs additionally blocked CD73 acting as dual-target inhibitors. Docking studies provided
核苷三磷酸二磷酸水解酶1(NTPDase1,CD39)抑制剂具有作为癌症(免疫)治疗新药的潜力。它们增加了免疫刺激性ATP的细胞外浓度,并减少了AMP的形成,后者可以被ecto-5'-核苷酸酶(CD73)进一步水解为免疫抑制,促进癌症的腺苷。在本研究中,我们合成了标准CD39抑制剂ARL67156的类似物和衍生物,这是一种显示出竞争性抑制机制的核苷酸类似物。在人酶处分析了结构-活性之间的关系。ñ腺嘌呤核的6-和C8-位,以及三磷酸(on)酸酯链的修饰。使用荧光标记的ATP衍生物的毛细管电泳与激光诱导的荧光检测耦合,以确定化合物的效力。相对于天然底物ATP,还通过正交的孔雀石绿分析法评估了选定的抑制剂。本系列中最有效的CD39抑制剂是ARL67156及其衍生物31和33ķ我值约为1 µM。选择性研究表明,所有三个核苷酸类似物还阻断了CD73作为双重靶标抑制剂的作用。对接研究为两个靶标提供了可