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Dinuclear Organoruthenium Complexes Exhibiting Antiproliferative Activity through DNA Damage and a Reactive-Oxygen-Species-Mediated Endoplasmic Reticulum Stress Pathway
journal contribution
posted on 2019-01-24, 12:52 authored by Jian Zhao, Shuang Li, Xinyi Wang, Gang Xu, Shaohua GouSubtle
ligand modifications on ruthenium arene complexes can lead to different
mechanisms of action and result in significant changes in the anticancer
efficacy. Herein, four novel dinuclear ruthenium(II) arene complexes
were designed and prepared. In vitro tests indicated that complexes 1–3 displayed moderate antiproliferative
activity against the tested cancer cells, while the cytotoxicity of
complex 4 is superior or comparable to that of cisplatin.
Further studies indicated that complexes 1–4 induce cell death through DNA interaction and a reactive-oxygen-species-mediated
endoplasmic reticulum (ER) stress pathway, which is the first example
of an organometallic ruthenium(II) arene complex to induce ER stress
as well as DNA interaction. This kind of dinuclear ruthenium(II) arene
complex has unique biological characteristics and is a promising model
for new anticancer drug development.