Synthesis, characterization, cytotoxicity and antiangiogenic activity of copper(II) complexes with 1-adamantoyl hydrazone bearing pyridine rings

Eur J Med Chem. 2016 Jun 10:115:75-81. doi: 10.1016/j.ejmech.2016.03.003. Epub 2016 Mar 8.

Abstract

Three novel copper complexes with tridentate N2O ligand di(2-pyridil) ketone 1-adamantoyl hydrazone (Addpy) of the formula [Cu(II)2Cu(I)2(Addpy)2Br2(μ-Br4)] (1), catena-poly[CuCl(μ-Addpy)(μ-Cl)CuCl2]n (2) and [Cu(Addpy)(NCS)2] (3) were synthesized. Complexes are characterized by X-ray crystallography, spectral (UV-Vis, FTIR), electrochemical (CV) analyses, and magnetochemical measurements. Investigation of anticancer potential of Cu(II) complexes, mode of cell death, apoptosis, and inhibition of angiogenesis were performed. All tested malignant cell lines (HeLa, LS174, A549, K562, and MDA-MB-231) showed high sensitivity to the examined Cu(II) complexes. It has been shown that the complexes induce apoptosis in the caspase 3-dependent manner, whereas the anti-angiogenic effects of 1, 2, and 3 have been confirmed in EA.hy926 cells using a tube formation assay.

Keywords: Angiogenesis; Caspase-3; Copper(II) complexes; Hydrazones; Physico-chemical characterization.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adamantane / analogs & derivatives*
  • Adamantane / chemistry
  • Adamantane / pharmacology
  • Angiogenesis Inhibitors / chemical synthesis
  • Angiogenesis Inhibitors / chemistry
  • Angiogenesis Inhibitors / pharmacology*
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Proliferation / drug effects
  • Cell Survival / drug effects
  • Copper / chemistry
  • Copper / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Humans
  • Hydrazones / chemistry
  • Hydrazones / pharmacology*
  • Molecular Structure
  • Neovascularization, Pathologic / drug therapy*
  • Neovascularization, Pathologic / pathology
  • Organometallic Compounds / chemical synthesis
  • Organometallic Compounds / chemistry
  • Organometallic Compounds / pharmacology*
  • Pyridines / chemistry
  • Pyridines / pharmacology*
  • Structure-Activity Relationship
  • Tumor Cells, Cultured

Substances

  • 1-adamantoyl hydrazone
  • Angiogenesis Inhibitors
  • Antineoplastic Agents
  • Hydrazones
  • Organometallic Compounds
  • Pyridines
  • Copper
  • pyridine
  • Adamantane