Discovery of thiazolidin-4-one urea analogues as novel multikinase inhibitors that potently inhibit FLT3 and VEGFR2

Bioorg Med Chem. 2019 May 15;27(10):2127-2139. doi: 10.1016/j.bmc.2019.03.049. Epub 2019 Mar 25.

Abstract

A series of novel thiazolidine-4-one urea analogues were designed, synthesized and biologically evaluated. The structure-activity relationship (SAR) at several positions of the scaffolds was investigated and its binding mode was analyzed by molecular modeling studies. Compound 17b proved to be the most potent one, and IC50 values against A549 and HT-29 cancer cell lines were 0.65 μM and 0.11 μM, respectively. The results of kinase profile demonstrated that compound 17b is a multikinase inhibitor that potently inhibits FLT3 (IC50 = 8.6 nM) and VEGFR2 (IC50 = 18.7 nM). The results of real-time live-cell imaging indicated that compound 17b showed excellent cytotoxicity and anti-proliferative activity against HT-29 cancer cells in a time- and dose-dependent manner, which was significantly potent than that of Cabozantinib. In addition, in vitro antitumor activity was associated with inducing cancer cell apoptosis and suppression of cancer cell migration.

Keywords: Anti-tumor; FLT3; Kinase inhibitor; Structure-activity relationship; Thiazolidin-4-one; VEGFR2.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anilides / pharmacology
  • Apoptosis / drug effects
  • Binding Sites
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Drug Design
  • Humans
  • Molecular Docking Simulation
  • Protein Kinase Inhibitors / chemistry*
  • Protein Kinase Inhibitors / metabolism
  • Protein Kinase Inhibitors / pharmacology
  • Protein Structure, Tertiary
  • Pyridines / pharmacology
  • Structure-Activity Relationship
  • Thiazolidinediones / chemistry*
  • Urea / analogs & derivatives*
  • Urea / metabolism
  • Urea / pharmacology
  • Vascular Endothelial Growth Factor Receptor-2 / antagonists & inhibitors*
  • Vascular Endothelial Growth Factor Receptor-2 / metabolism
  • fms-Like Tyrosine Kinase 3 / antagonists & inhibitors*
  • fms-Like Tyrosine Kinase 3 / metabolism

Substances

  • Anilides
  • Protein Kinase Inhibitors
  • Pyridines
  • Thiazolidinediones
  • cabozantinib
  • Urea
  • Vascular Endothelial Growth Factor Receptor-2
  • fms-Like Tyrosine Kinase 3