Abstract
The search for novel anticancer therapeutic agents is an urgent and important issue in medicinal chemistry. Here, we report on the biological activity of the copper-based bioinorganic complex Cu4 (2,4-di-tert-butyl-6-(1H-imidazo- [1, 10] phenanthrolin-2-yl)phenol)4]·10 CH3CN (2), which was tested in rat L6 myotubes, mouse NSC-34 motor neurone-like cells, and HepG-2 human liver carcinoma. Upon 96 h incubation, 2 exhibited a significant cytotoxic effect on all three types of cells via activation of two cell death mechanisms (apoptosis and necrosis). Complex 2 exhibited better potency and efficacy than the canonical cytotoxic drug cisplatin. Moreover, during shorter incubations, complex 2 demonstrated a significant SOD mimetic activity, and it was more effective and more potent than the well-known SOD mimetic TEMPOL. In addition, complex 2 was able to interact with DNA and, cleave DNA in the presence of sodium ascorbate. This study shows the potential of using polynuclear redox active compounds for developing novel anticancer drugs through SOD-mimetic redox pathways.
Original language | English |
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Pages (from-to) | 1287-1298 |
Number of pages | 12 |
Journal | Journal of Biological Inorganic Chemistry |
Volume | 20 |
Issue number | 8 |
DOIs | |
State | Published - 1 Dec 2015 |
Bibliographical note
Publisher Copyright:© 2015 SBIC.
Funding
This study was partly supported by Bar-Ilan University‘s new faculty Grants for AG and LB. We thank Dr. M. Kanovsky and S. Manch for editing the manuscript.
Funders | Funder number |
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Bar-Ilan University |
Keywords
- Anticancer drugs
- Apoptosis
- Cytotoxicity
- SOD mimetic
- Tetra nuclear copper (II) complex