Journal
PHARMACEUTICALS
Volume 15, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/ph15050507
Keywords
N-heterocyclic carbenes; human topoisomerases; actin; docking studies; breast cancer cells; multi-target agents
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Funding
- Italian Ministry of Health
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Metal complexes based on N-heterocyclic carbenes (NHCs) have been extensively studied in the past decade for their wide applications in material sciences and medicinal chemistry. The research focus has been on gold-based complexes for the development of new anticancer compounds. This study reports the design, synthesis, and good anticancer activity of silver and gold complexes with NHC ligands. Some of these complexes showed activity against breast cancer cell lines. New Au-NHC complexes were prepared to improve solubility and biological activity. Some of these compounds demonstrated interesting anticancer activity and inhibited key cellular processes in breast cancer cells.
Over the past decade, metal complexes based on N-heterocyclic carbenes (NHCs) have attracted great attention due to their wide and exciting applications in material sciences and medicinal chemistry. In particular, the gold-based complexes are the focus of research efforts for the development of new anticancer compounds. Literature data and recent results, obtained by our research group, reported the design, the synthesis and the good anticancer activity of some silver and gold complexes with NHC ligands. In particular, some of these complexes were active towards some breast cancer cell lines. Considering this evidence, here we report some new Au-NHC complexes prepared in order to improve solubility and biological activity. Among them, the compounds 1 and 6 showed an interesting anticancer activity towards the breast cancer MDA-MB-231 and MCF-7 cell lines, respectively. In addition, in vitro and in silico studies demonstrated that they were able to inhibit the activity of the human topoisomerases I and II and the actin polymerization reaction. Moreover, a downregulation of vimentin expression and a reduced translocation of NF-kB into the nucleus was observed. The interference with these vital cell structures induced breast cancer cells' death by triggering the extrinsic apoptotic pathway.
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