Macrocyclic Inhibitors of HGF-Activating Serine Proteases Overcome Resistance to Receptor Tyrosine Kinase Inhibitors and Block Lung Cancer Progression
作者:Vishnu C. Damalanka、Jorine J. L. P. Voss、Matthew W. Mahoney、Tina Primeau、Shunqiang Li、Lidija Klampfer、James W. Janetka
DOI:10.1021/acs.jmedchem.1c01671
日期:2021.12.23
series of cyclic tripeptides has superior metabolic stability and significantly improved pharmacokinetics in mice relative to the corresponding linear peptides. We identified the lead compound VD2173 that potently inhibits matriptase and hepsin, which was tested in parallel alongside the acyclic inhibitor ZFH7116 using both in vitro and in vivo models of lung cancer. We demonstrated that both compounds block
肝细胞生长因子 (HGF) 是 MET 受体酪氨酸激酶的配体,是肿瘤微环境中丰富的促肿瘤因子。一种或多种丝氨酸内肽酶matriptase、hepsin和HGF激活剂对无活性pro-HGF的蛋白水解激活是HGF/MET信号传导中的限速步骤。在此,我们合理设计了一类新型侧链环化大环肽抑制剂。相对于相应的线性肽,新系列的环状三肽具有优越的代谢稳定性和显着改善的小鼠药代动力学。我们确定了有效抑制matriptase和hepsin的先导化合物VD2173,并在体外和体内肺癌模型中与无环抑制剂ZFH7116同时进行了测试。我们证明了这两种化合物都能阻断 pro-HGF 活化,消除 HGF 介导的伤口愈合,并克服肺癌模型中对 EGFR 和 MET 靶向治疗的耐药性。此外,VD2173 抑制小鼠肺癌肿瘤的 HGF 依赖性生长。