Journal
INORGANICA CHIMICA ACTA
Volume 512, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2020.119896
Keywords
2-Mercaptobenzimidazole; Nickel; Cis-platin; Copper; Cobalt; Borate ligands
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Funding
- research council of the Institute for Advanced Studies in Basic Sciences (IASBS), Iran
- Shiraz University of Medical Sciences [16053]
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The salt metathesis reaction of sodium precursors, Na[H2B(mb)(2)] (Hmb = 2-mercapto-benzimidazole) and Na[H2B(mbt)(2)] (Hmbt = 2-mercapto-benzothiazole) of bipodal scorpionate ligands with Cu(OAc)(2), CoCl2 and NiBr2 afforded six metal complexes, 1-6. The metal complexes were characterized using a combination of HR ESI-MS spectrometry, elemental analysis and IR spectroscopy. The cytotoxicity effect of these complexes was assessed on three human cancerous cell lines: MCF-7 (breast carcinoma), A549 (lung carcinoma) and SW1116 (colon adenocarcinoma) and compared with that for cis-platin. Our results indicated that all complexes had desirable antitumor activities (< 100 mu M). Copper complexes, 1 and 4, exhibited the highest anti-proliferative activity on all investigated cell lines, which are more effective than Ni and Co containing complexes and even cis-platin. The complex 1 also showed genotoxic effect and could effectively induce apoptosis in tumor cells. Molecular docking simulation studies on the synthesized complexes confirmed that 1 had the highest DNA-binding energy as their proposed targets, as well.
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