BAY-8400: A Novel Potent and Selective DNA-PK Inhibitor which Shows Synergistic Efficacy in Combination with Targeted Alpha Therapies
作者:Markus Berger、Lars Wortmann、Philipp Buchgraber、Ulrich Lücking、Sabine Zitzmann-Kolbe、Antje M. Wengner、Benjamin Bader、Ulf Bömer、Hans Briem、Knut Eis、Hartmut Rehwinkel、Florian Bartels、Dieter Moosmayer、Uwe Eberspächer、Philip Lienau、Stefanie Hammer、Christoph A. Schatz、Qiuwen Wang、Qi Wang、Dominik Mumberg、Carl F. Nising、Gerhard Siemeister
DOI:10.1021/acs.jmedchem.1c00762
日期:2021.9.9
DNA-dependent protein kinase (DNA-PK), allows for fast, cell cycle-independent but less accurate DNA repair. Here, we report the discovery of BAY-8400, a novel selective inhibitor of DNA-PK. Starting from a triazoloquinoxaline, which had been identified as a hit from a screen for ataxia telangiectasia and Rad3-related protein (ATR) inhibitors with inhibitory activity against ATR, ATM, and DNA-PK, lead
真核生物已经进化出两种主要途径来修复潜在的致命 DNA 双链断裂。同源重组代表了在 S 和 G2 细胞周期阶段可用的基于 DNA 模板的精确机制,而需要 DNA 依赖性蛋白激酶 (DNA-PK) 的非同源末端连接允许快速、细胞周期独立但不太准确的 DNA 修复。在这里,我们报告了BAY-8400的发现,这是一种新型的 DNA-PK 选择性抑制剂。从三唑并喹喔啉开始,该药物已被确定为共济失调毛细血管扩张症和 Rad3 相关蛋白 (ATR) 抑制剂的筛选结果,该抑制剂对 ATR、ATM 和 DNA-PK 具有抑制活性,主要针对效力和选择性的优化工作导致BAY-8400的发现。在体外研究表明,BAY-8400显示出 DNA-PK 抑制与 DNA 损伤诱导靶向 α 疗法的协同活性。与 PSMA 靶向钍 227 偶联物单一疗法相比,PSMA 靶向钍 227 偶联物 BAY 2315497 与BAY-