Trans-Dichloridopalladium(II) and platinum(II) complexes with 2-(hydroxymethyl)pyridine and 2-(2-hydroxyethyl)pyridine: Synthesis, structural characterization, DNA binding and in vitro cytotoxicity studies
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Date
2013-02
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Elsevier France
Abstract
Four trans-palladium(II)- and trans-platinum(II)-chlorido complexes, trans-[PdCl2(2-hmpy)(2)] (1), trans-[PtCl2(2-hmpy)(2)] (2), trans-[Pdcl(2)(2-hepy)(2)] (3) and trans-[PtCl2(2-hepy)(2)] (4) (2-hmpy = 2-(hydroxymethyl)pyridine and 2-hepy = 2-(2-hydroxyethyl)pyridine), have been synthesized and characterized by elemental analysis, IR, NMR, and X-ray diffraction. The binding properties of these complexes with fish sperm DNA (FS-DNA) were investigated by UV titration, viscosity, thermal denaturation and electrophoresis measurements. The complexes can bind to FS-DNA and complex 4 exhibits the highest binding constant. Gel electrophoresis assay demonstrates that all the complexes can cleave the pCMV-beta gal plasmid DNA to a different degree. The cytotoxic activities of the complexes were tested against four different cancer cell lines. In general, the platinum(II) complexes are more effective than the isostructural palladium(II) complexes. Complex 4 shows high anticancer activity, compared to transplatin, cisplatin, carboplatin and oxaliplatin.
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Keywords
Pharmacology & pharmacy, Transplatinum complexes, 2-(Hydroxymethyl)pyridine, 2-(2-Hydroxyethyl)pyridine, DNA binding, Cytotoxic activity, Trans geometry, Ethidium-bromide, Metal-complexes, Antitumor, Palladium(II), Pd(II), Ligand, Drugs, Ruthenium(II), Fluorescence
Citation
İçsel, C. vd. (2013). "Trans-Dichloridopalladium(II) and platinum(II) complexes with 2-(hydroxymethyl)pyridine and 2-(2-hydroxyethyl)pyridine: Synthesis, structural characterization, DNA binding and in vitro cytotoxicity studies". European Journal of Medicinal Chemistry, 60, 386-394 .