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Mixed ligand complexes of Co(II), Ni(II) and Cu(II) with quercetin and diimine ligands: synthesis, characterization, anti-cancer and anti-oxidant activity

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Date

2020

Author

Genckal, Hasene
Erkisa Genel, Merve
Alper, Pinar
Sahin, Saliha
Ulukaya, Engin
Ari, Ferda

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Citation

Gençkal, H. M., Erkisa, M., Alper, P., Sahin, S., Ulukaya, E., & Ari, F. (2020). Mixed ligand complexes of Co (II), Ni (II) and Cu (II) with quercetin and diimine ligands: synthesis, characterization, anti-cancer and anti-oxidant activity. JBIC Journal of Biological Inorganic Chemistry, 25(1), 161-177.

Abstract

In this work, mixed ligand complexes of Co(II) Ni(II) and Cu(II) were synthesized using quercetin and diimine (1,10-phenanthroline or 2,2 '-bipyiridine) ligands. The obtained Ni(II) and Co(II) complexes are new and the Cu(II) complexes are synthesized by different method from the literature. The characterization of complexes was performed by elemental analysis, thermogravimetric analysis, ESI-MS, UV-visible and infrared spectral analyses, magnetic susceptibility and molar conductivity measurements. It was found that quercetin, diimine and metal(II) ion form 1:1:1 complexes. Resulting data supported octahedral geometry for Ni(II) and Co(II) complexes and square pyramidal geometry for Cu(II) complexes. The proposed compositions are [Co(queH-1)Cl(phen)(H2O)]center dot 2H(2)O (1, queH = quercetin, phen = 1,10-phenanthroline), [Ni(queH-1)Cl(phen)(H2O)]center dot 2H(2)O (2), [Cu(queH-1)Cl(phen)]center dot 2.5H(2)O (3) and [Cu(queH-1)Cl(bpy)]center dot 2H(2)O (4, bpy = 2,2 '-bipyiridine). Antioxidant capacity and total phenolic content of complexes measured by Folin-Ciocalteu and ABTS methods. Anti-cancer effect of these compounds were tested against different cancer cells (A549, PC-3, HeLa and MCF-7). Apoptosis identified by the fluorescence imaging, caspase cleaved cytokeratin-18 and flow cytometry analysis (annexin V, caspase 3/7, mitochondria membrane potential and oxidative stress). As a result, Cu(II) complexes are more effective than the other compounds and Complex 3 is a promising anti-cancer compound against breast cancer MCF-7 and MDA-MB-231 cells (IC50 values are 2.4 and 5.4 mu M for 48 h, respectively). Flow cytometry analysis exhibited that Complex 3 caused apoptosis in MCF-7 cells. These results support that Complex 3 has anticancer activity and can be a potential anticancer agent especially in breast cancer.

Source

Journal of Biological Inorganic Chemistry

Volume

25

Issue

1

URI

https://doi.org/10.1007/s00775-019-01749-z
https://hdl.handle.net/20.500.12713/451

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  • Moleküler Kanser Uygulama ve Araştırma Merkezi Makale Koleksiyonu [23]
  • PubMed İndeksli Yayınlar Koleksiyonu [1162]
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  • Temel Tıp Bilimleri Bölümü Makale Koleksiyonu [235]
  • WoS İndeksli Yayınlar Koleksiyonu [2043]



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