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Emerging protein targets for anticancer metallodrugs: inhibition of thioredoxin reductase and cathepsin B by antitumor ruthenium (II)-arene compounds

Casini, Angela, Gabbiani, Chiara, Sorrentino, Francesca, Rigobello, Maria Pia, Bindoli, Alberto, Geldbach, Tifimann J., Marrone, Alessandro, Re, Nazzareno, Hartinger, Christian G., Dyson, Paul J. and Messori, Luigi 2008. Emerging protein targets for anticancer metallodrugs: inhibition of thioredoxin reductase and cathepsin B by antitumor ruthenium (II)-arene compounds. Journal of Medicinal Chemistry 51 (21) , pp. 6773-6781. 10.1021/jm8006678

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Abstract

A series of ruthenium(II)−arene (RAPTA) compounds were evaluated for their ability to inhibit thioredoxin reductase (either cytosolic or mitochondrial) and cathepsin B, two possible targets for anticancer metallodrugs. In general, inhibition of the thioredoxin reductases was lower than that of cathepsin B, although selected compounds were excellent inhibitors of both classes of enzymes in comparison to other metal-based drugs. Some initial structure−activity relationships could be established. On the basis of the obtained data, different mechanisms of binding/inhibition appear to be operative; remarkably the selectivity of the ruthenium compounds toward solid metastatic tumors also correlates to the observed trends. Notably, docking studies of the interactions of representative RAPTA compounds with cathepsin B were performed that provided realistic structures for the resulting protein−metallodrug adducts. Good agreement was generally found between the inhibiting potency of the RAPTA compounds and the computed stability of the corresponding cat B/RAPTA adducts.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Publisher: American Chemical Society
Last Modified: 04 Jun 2017 08:30
URI: http://orca.cf.ac.uk/id/eprint/79360

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