| Popis: |
Silver and its derivatives have been and are currently used as antimicrobial and antibacterial agents. However, their use is rather limited to date as anticancer agents. Thus, this study focuses on the synthesis and characterization of three silver(I) complexes which have the ability to adopt different geometries,and to induce cancer cell death in SNO esophageal cancer cells. Silver thiocyanate was reacted in different ratios with cyclohexyldiphenylphosphine to obtain 1:1 (complex 1), 1:2 (complex 2) and 1:3 (complex 3) molar ratios of silver(I):cyclohexyldiphenylphosphine complexes. These complexes were characterized using conventional spectroscopic techniques, which included 1H, 13C and 31P NMR, FTIR and microanalysis (%C, H, N, S). In addition, the single-crystal X-ray structures of complexes1 and 2 were determined. Moreover, all three complexes displayed toxic activity towards the malignant SNO cells with IC50 concentrations below 5 μM as determined with an alamarBlue® viability assay. Morphological and flow cytometric analysis were included to identify the possible mode of cancer cell death. These biochemical assays revealed that all three treatments induced apoptosis due to the presence of specific apoptotic markers. |
