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• W2096812370 abstract "Six homologous gold(III) dinuclear oxo-bridged complexes, of the type ((bipy nR )Au(µ-O) 2 Au(bipy nR ))(PF 6 ) 2 , bearing variously substituted 2,2'-bipyridine ligands (bipy nR = 2,2'-bipyridine, 4,4'-di-tert-butyl-, 6-methyl-, 6-neopentyl-, 6-o-xylyl- and 6,6'-dimethyl-2,2'-bipyridine), here called Auoxos, were prepared, characterised and recently tested as potential anticancer agents. Crystal structures were obtained for five members of the series that allowed us to perform detailed comparative analyses. Interestingly, the various Auoxos showed an acceptable stability profile in buffer solution and turned out to manifest outstanding antitumor properties in vitro. In particular, one member of this family, Auoxo6 (bipy nR = 6,6'-dimethyl-2,2'-bipyridine), produced more selective and far greater antiproliferative effects than all other tested Auoxos, qualifying itself as the best drug candidate. In turn, COMPARE analysis of the cytotoxicity profiles of five Auoxos, toward an established panel of thirty-six human tumor cell lines, revealed important mechanistic differences; a number of likely biomolecular targets could thus be proposed such as HDAC and PKC. Biophysical studies revealed markedly different modes of interaction with calf thymus DNA for two representative Auoxo compounds. In addition, a peculiar reactivity with model proteins was documented on the ground of spectrophotometric and ESI MS data, most likely as the result of redox processes. In view of the several experimental evidences gathered so far, it can be stated that Auoxos constitute a novel family of promising cytotoxic gold compounds with an innovative mechanism of action that merit a more extensive pharmacological evaluation." @default.
• W2096812370 created "2016-06-24" @default.
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• W2096812370 date "2010-03-25" @default.
• W2096812370 modified "2023-09-26" @default.
• W2096812370 title "Dinuclear Gold(III) Complexes as Potential Anticancer Agents: Structure, Reactivity and Biological Profile of a Series of Gold(III) Oxo-BridgedDerivatives" @default.
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• W2096812370 doi "https://doi.org/10.2174/1874846501003010029" @default.
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