Synthesis, biological evaluation, in silico modeling and crystallization of novel small monocationic molecules with potent antiproliferative activity by dual mechanism

Eur J Med Chem. 2020 Dec 1:207:112797. doi: 10.1016/j.ejmech.2020.112797. Epub 2020 Sep 6.

Abstract

Seeking for new anticancer drugs with strong antiproliferative activity and simple molecular structure, we designed a novel series of compounds based on our previous reported pharmacophore model composed of five moieties. Antiproliferative assays on four tumoral cell lines and evaluation of Human Choline Kinase CKα1 enzymatic activity was performed for these compounds. Among tested molecules, those ones with biphenyl spacer showed betters enzymatic and antiproliferative activities (n-v). Docking and crystallization studies validate the hypothesis and confirm the results. The most active compound (t) induces a significant arrest of the cell cycle in G0/G1 phase that ultimately lead to apoptosis, following the mitochondrial pathway, as demonstrated for other choline kinase inhibitors. However additional assays reveal that the inhibition of choline uptake could also be involved in the antiproliferative outcome of this class of compounds.

Keywords: Antitumoral drug; Choline kinase inhibition; Choline uptake.

MeSH terms

  • Antineoplastic Agents / chemical synthesis*
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / metabolism
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Chemistry Techniques, Synthetic
  • Choline Kinase / antagonists & inhibitors
  • Choline Kinase / chemistry
  • Choline Kinase / metabolism
  • Computer Simulation*
  • Drug Design*
  • G1 Phase Cell Cycle Checkpoints / drug effects
  • Humans
  • Molecular Docking Simulation*
  • Protein Conformation
  • Resting Phase, Cell Cycle / drug effects
  • Small Molecule Libraries / chemical synthesis*
  • Small Molecule Libraries / chemistry
  • Small Molecule Libraries / metabolism
  • Small Molecule Libraries / pharmacology*

Substances

  • Antineoplastic Agents
  • Small Molecule Libraries
  • CHKA protein, human
  • Choline Kinase