Synthesis, physico-chemical properties and biological analysis of newly obtained copper(II) complexes with pyrazole derivatives
作者:Magdalena Grazul、Emina Besic-Gyenge、Caroline Maake、Michal Ciolkowski、Malgorzata Czyz、Roland K.O. Sigel、Elzbieta Budzisz
DOI:10.1016/j.jinorgbio.2014.02.014
日期:2014.6
Three new copper(II) complexes containing two different pyrazole bound ligands (1, 2) have been synthesized and characterized by IR, LSI-MS (liquid secondary ion mass spectrometry) and elemental analysis. H-1 NMR spectra of the organic ligands have been recorded. We describe the influence of these complexes on particular cancer cell lines and DNA structure by MTT-assay [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide], APA (acid phosphatase activity)-assay or CD-spectroscopy and agarose gel electrophoresis methods, together with their physico-chemical properties such as lipophilicity and stability in aqueous solution. The cytotoxic effect on HUVEC (endothelial cells) for the most active complex 4 has been also investigated. Moreover, the ability of these complexes to induce apoptosis in cancer cells has been assessed by using fluorescence microscopy. Our results indicate that dichloridobis(1-[amino(thioxo)methyl]-5-hydroxy-3-phenyl-1H-pyrazole-kappa N2)copper(II) is the most potent complex among the tested complexes. (C) 2014 Elsevier Inc. All rights reserved.