SOD mimetic activity and antiproliferative properties of a novel tetra nuclear copper (II) complex

Sagiv Weintraub, Yoni Moskovitz, Ohad Fleker, Ariel R. Levy, Aviv Meir, Sharon Ruthstein, Laurent Benisvy, Arie Gruzman

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

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 languageEnglish
Pages (from-to)1287-1298
Number of pages12
JournalJournal of Biological Inorganic Chemistry
Volume20
Issue number8
DOIs
StatePublished - 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.

FundersFunder number
Bar-Ilan University

    Keywords

    • Anticancer drugs
    • Apoptosis
    • Cytotoxicity
    • SOD mimetic
    • Tetra nuclear copper (II) complex

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