Antiproliferative activity of ruthenium(ii) arene complexes with mono- and bidentate pyridine-based ligands
Kumbhar, Avinash S.
© The Royal Society of Chemistry 2016
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A series of Ru(II) arene complexes of mono- and bidentate N-donor ligands with carboxyl or ester groups and chlorido ancillary ligands were synthesised and structurally characterised. The complexes have a distorted tetrahedral piano-stool geometry. The binding interaction was studied with calf thymus DNA (CT-DNA) by absorption titration, viscosity measurement, thermal melting, circular dichroism, ethidium bromide displacement assay and DNA cleavage of plasmid DNA (pBR322), investigated by gel electrophoresis. The dichlorido complexes bind covalently to DNA in the dark, similar to cisplatin, while the monochlorido complexes bind covalently on irradiation, similar to cisplatin analogues. The compounds are selectively cytotoxic against several tumour cell lines and show specific nonlinear correlation between dose and activity. This phenomenon is closely related to their potential to act preferentially as inhibitors of cell division.
Source:Dalton Transactions, 2016, 45, 33, 13114-13125
- Molecular mechanisms of physiological and pharmacological control of inflammation and cancer (RS-173013)
- Free State of Saxony (project number 100099597)
- Graduate School “Leipzig School of Natural Sciences–Building with Molecules and Nano-objects” (BuildMoNa)
- Indo-German research project (INT/ FRG/DAAD/P-225/2013)