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<dc:title xml:lang="fr">Utilisation de la stratégie du cheval de Troie pour lutter contre Pseudomonas aeruginosa : synthèses et propriétés biologiques de conjugués sidérophores-antibiotiques</dc:title>
<dcterms:alternative xml:lang="en">Use of the Trojan horse strategy against Pseudomonas aeruginosa : syntheses and biological properties of siderophore-antibiotic conjugates</dcterms:alternative>
<dc:subject xml:lang="fr">Pyochéline</dc:subject>
<dc:subject xml:lang="fr">Oxazolidinone</dc:subject>
<dc:subject xml:lang="fr">Stratégie du cheval de Troie</dc:subject>
<dc:subject xml:lang="fr">Sidérophore</dc:subject>
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<dc:subject xml:lang="en">Siderophore</dc:subject>
<dc:subject xml:lang="en">Trojan horse strategy,</dc:subject>
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<tef:elementdEntree autoriteExterne="034148876" autoriteSource="Sudoc">Infections à Pseudomonas aeruginosa</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">La découverte de stratégies thérapeutiques innovantes contre les bactéries pathogènes est cruciale. Le fer est essentiel pour la prolifération bactérienne et les bactéries pathogènes excrètent des molécules organiques de faible poids moléculaire, appelées sidérophores, pour acquérir le fer(III). Les systèmes d’acquisition de fer sidérophores-dépendants sont transmembranaires et peuvent être utilisés comme des portes d’entrée pour faire pénétrer des conjugués sidérophores-antibiotiques dans la bactérie dans le cadre d’une stratégie dite du cheval de Troie. Nous avons synthétisé des conjugués constitués d’analogues des sidérophores pyochéline, aminochéline ou azotochéline couplés à des oxazolidinones antibiotiques. Dans la majorité de nos approches la liaison entre le sidérophore et l’antibiotique est le résultat d’une réaction de chimie click. La synthèse et les propriétés biologiques des vecteurs et des conjugués synthétisés sont présentées dans ce manuscrit.</dcterms:abstract>
<dcterms:abstract xml:lang="en">Constant discovery of innovative therapeutic strategies against pathogenic bacteria is crucial. Iron is essential for bacterial proliferation since it is integrated in the active site of essential enzymes. Many pathogenic bacteria excrete low molecular weight secondary metabolites called siderophores in order to promote iron (III) acquisition. Transmembrane siderophore-dependent iron uptake systems can be used as gates by siderophore-antibiotic conjugates. In this context, we synthesized conjugates between analogs of pyochelin, aminochelin or azotochelin with oxazolidinones antibiotics. In this project many of the conjugation between vectors and antibiotics were the result of click chemistry reactions even the use of peptidic bonds was also explored. Synthesis and biological properties of conjugates and vectors are presented in this manuscript.</dcterms:abstract>
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