Details

Autor(en) / Beteiligte

• Jayanthi, Eswaran
• Kalaiselvi, Sivalingam
• Padma, Viswanatha Vijaya
• Bhuvanesh, Nattamai S. P
• Dharmaraj, Nallasamy

Titel

Solvent assisted formation of ruthenium(iii) and ruthenium(ii) hydrazone complexes in one-pot with potential in vitro cytotoxicity and enhanced LDH, NO and ROS releaseElectronic supplementary information (ESI) available: ESI-mass spectra of all the four complexes (Fig. S1-S4), electronic spectra of complexes 3 and 4 in Tris-HCl buffer upon addition of CT-DNA (Fig. S5 and S6), [DNA]/[ a − f] versus [DNA] plot (Fig. S7), Stern-Volmer plot (Fig. S8), emission spectra of BSA (1 μM) in the presence o

Erscheinungsjahr

2016-01

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A set each of new bivalent and trivalent ruthenium complexes, [Ru III (HL)Cl 2 (EPh 3 ) 2 ] and [Ru II (L)(CO)(EPh 3 ) 2 ] (E = P (complexes 1 and 2 ) or As (complexes 3 and 4 )) were synthesised from the reactions of [Ru III Cl 3 (EPh 3 ) 3 ] with 2-hydroxynaphthaldehyde benzoic acid hydrazone ( H 2 L ) in methanol-chloroform and characterized by elemental analysis, spectral data and XRD study. A suitable mechanism to account for the formation of bivalent ruthenium carbonyl complexes from the corresponding trivalent precursors is provided by considering the role of added base in the reaction. Interaction of complexes 1-4 with CT-DNA/bovine serum albumin was analysed with absorption and emission spectral titration studies. In vitro cytotoxic potential of the above ruthenium hydrazone complexes 1-4 assayed against the A549 cell line revealed a significant growth inhibition. The test complexes 1-4 added in IC 50 concentration into the cell culture medium enhanced the release of lactate dehydrogenase, NO and reactive oxygen species in comparison with the control. Cell death induced by the complexes was studied using a propidium iodide staining assay and showed noticeable changes in the cell morphology which resembled apoptosis. Ru III and Ru II hydrazone complexes were synthesized and characterized. Their DNA/BSA binding and in vitro cytotoxic potential were evaluated.