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<dc:title xml:lang="en">Organometallic compounds of tin and ruthenium : applications in medicinal chemistry</dc:title>
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<dc:subject xml:lang="fr">Chimie inorganique médicinale</dc:subject>
<dc:subject xml:lang="fr">Organostanniques</dc:subject>
<dc:subject xml:lang="fr">Acides gras</dc:subject>
<dc:subject xml:lang="fr">Antimicrobien</dc:subject>
<dc:subject xml:lang="fr">Ruthénium</dc:subject>
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<dc:subject xml:lang="en">Medicinal inorganic chemistry</dc:subject>
<dc:subject xml:lang="en">Organotin</dc:subject>
<dc:subject xml:lang="en">Fatty acid</dc:subject>
<dc:subject xml:lang="en">Antimicrobial agent</dc:subject>
<dc:subject xml:lang="en">Ruthenium</dc:subject>
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<dcterms:abstract xml:lang="fr">Nous avons synthétisé des composés d'étain avec des acides undécylénique, ricinoléique et caprylique. Ils ont une activité importante contre certaines souches de microrganismes, puisque ils agissent pour certains d’entre eux à des concentrations nanomolaires. Staphylococcus aureus semble être 4000 fois plus sensible à leur toxicité que les cellules de mammifères. Nous avons obtenu des composés du ruthénium qui présentent cytotoxicité contre des cellules cancéreuses suivant un mécanisme d'action différent de ceux observés pour le Cisplatine ou d'autres composés de Ru, grâce à leur grande stabilité dans les réactions de substitution. Enfin, pendant la vectorisation des composés dérivés du Ru avec une Affitine nous avons pu acquérir des connaissances importantes sur un éventuel mécanisme d'action de ce type de molécules dont le potentiel redox très abaissé par rapport aux composés correspondants pourrait être responsable de la polymérisation de protéines cibles par transfert d’électron.</dcterms:abstract>
<dcterms:abstract xml:lang="en">Related to antimicrobial research, we synthesized tin compounds derived from undecylenic, ricinoleic and caprylic acids and we found that they show very high activity against some strains of bacteria and yeast, even in nM range, being up to four thousand times more potent against Staphylococcus aureus than against mammalian cells. For ruthenium compounds, in turn, we have confirmed that the mode of action of some compounds that were synthesized recently is undoubtedly different from Cisplatin or other ruthenium compounds, because of their high stability toward substitution reactions. Finally, during the vectorization of compounds derived from Ru with Affitin we have gained important knowledge about a possible mechanism of action of this type of molecule: it could indeed be possible that these compounds which have a very reduced redox potential compared to corresponding compounds can cause polymerization of proteins by electron transfer.</dcterms:abstract>
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