Discovery of selective irreversible inhibitors for EGFR-T790M
摘要:
Targeting the epidermal growth factor receptor kinase (EGFR) with ATP-competitive kinase inhibitors results in dramatic but short-lived responses in patients with EGFR mutant non small cell lung cancer. A series of novel covalent EGFR kinase inhibitors with selectivity for the clinically relevant T790M 'gatekeeper' resistance mutation relative to wild-type EGFR were discovered by library screening. A representative compound 3i was obtained through a systematic SAR study guided by mutant EGFR-dependent cellular proliferation assays. (C) 2010 Elsevier Ltd. All rights reserved.
Structure‐based design and synthesis of pyrimidine containing reversible epidermal growth factor receptor (EGFR) inhibitors 1a–d are reported. The compounds (1a–d) inhibited the EGFR kinase activity in vitro with IC50 range 740 nm to 3 μm. mRNA expression of EGFR downstream target genes, that is twist, c‐fos and aurora were found to be altered upon treatment with compounds 1a–d. The compounds 1a–d exhibited excellent anticancer activity at low micromolar level (3.2–9 μm) in lung, colon and breast cancer cell lines. Furthermore, compounds induced the alteration in mitochondrial membrane potential and reactive oxygen species level and. Selected compound 1b was found to increase sub‐G1 population indicative of cell death, the mode of cell death was apoptotic as evident from Annexin V verses propidium iodide assay. Molecular modelling further helped to investigate the binding recognition pattern of the compounds in ATP binding EGFR domain similar to erlotinib and dissimilar to WZ4002.
Discovery of selective irreversible inhibitors for EGFR-T790M
作者:Wenjun Zhou、Dalia Ercan、Pasi A. Jänne、Nathanael S. Gray
DOI:10.1016/j.bmcl.2010.12.036
日期:2011.1
Targeting the epidermal growth factor receptor kinase (EGFR) with ATP-competitive kinase inhibitors results in dramatic but short-lived responses in patients with EGFR mutant non small cell lung cancer. A series of novel covalent EGFR kinase inhibitors with selectivity for the clinically relevant T790M 'gatekeeper' resistance mutation relative to wild-type EGFR were discovered by library screening. A representative compound 3i was obtained through a systematic SAR study guided by mutant EGFR-dependent cellular proliferation assays. (C) 2010 Elsevier Ltd. All rights reserved.
Optimization of WZ4003 as NUAK inhibitors against human colorectal cancer