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. 2023 Jul 3;29(37):e202300116.
doi: 10.1002/chem.202300116. Epub 2023 May 9.

Silver-Based Terpyridine Complexes as Antitumor Agents

María Gil-Moles  1 , M Elena Olmos  1 , Miguel Monge  1 , Manuel Beltrán-Visiedo  2 , Isabel Marzo  2 , José M López-de-Luzuriaga  1 , M Concepción Gimeno  3
Affiliations

Silver-Based Terpyridine Complexes as Antitumor Agents

María Gil-Moles et al. Chemistry. .

Abstract

Silver complexes bearing substituted terpyridine or tetra-2-pyridinylpyrazine ligands have been prepared and structurally characterised. The study of the anticancer properties of silver complexes with this type of ligands is scarce, despite the possibilities of combining the properties of the metal and the ability of the ligands for DNA binding. Here, the antiproliferative activity, stability, CT-DNA binding, and mechanism of cell death of these types of derivatives are studied. High cytotoxicity against different tumour cells was observed, and, more important, a great selectivity index has been detected between tumour cells and healthy lymphocytes T for some of these compounds. The CT-DNA interaction study has shown that these derivatives are able to interact with CT-DNA by moderate intercalation. Furthermore, cell death studies indicate that these derivatives promote the apoptosis by a mitochondrial pathway.

Keywords: cancer; cytotoxicity; polynuclear compounds; silver; terpyridine.

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