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     <dc:title xml:lang="fr">Evaluation de la trans-traduction chez Pseudomonas aeruginosa comme nouvelle cible pour le développpement de composés antimicrobiens</dc:title>
     <dcterms:alternative xml:lang="en">Assessment of trans-translation in Pseudomonas aeruginosa as a novel arget for the development of new antimicrobial compounds</dcterms:alternative>
     <dc:subject xml:lang="fr">Trans-traduction</dc:subject><dc:subject xml:lang="fr">Pseudomonas aeruginosa</dc:subject><dc:subject xml:lang="fr">Biosenseur</dc:subject><dc:subject xml:lang="fr">Antimicrobiens</dc:subject>
     <dc:subject xml:lang="en">Trans-translation</dc:subject><dc:subject xml:lang="en">Pseudomonas aeruginosa</dc:subject><dc:subject xml:lang="en">Biosensor</dc:subject><dc:subject xml:lang="en">Antimicrobials</dc:subject>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027423913"> Pseudomonas aeruginosa</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027814734"> Agents anti-infectieux</tef:elementdEntree>
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     <dcterms:abstract xml:lang="fr">Pseudomonas aeruginosa est une bactérie pathogène opportuniste impliquée dans de nombreuses infections nosocomiales et dont la résistance aux antibiotiques est de plus en plus préoccupante. Cette thèse explore la trans-traduction, un mécanisme de contrôle de la qualité de la traduction permettant de libérer les ribosomes bloqués sur des ARNm tronqués. Ce processus repose sur l'action de la protéine SmpB et de l'ARNtm, qui assurent le recyclage canonique des complexes de traduction. L'inactivation de la trans-traduction réduit la croissance et la virulence de P. aeruginosa. Un système de criblage in vivo a été développé pour identifier des inhibiteurs de la trans-traduction. Il est composé de deux souches biosenseurs et repose sur la fluorescence rouge de la protoporphyrine IX. Cette étude met en avant la trans-traduction comme une cible thérapeutique potentielle contre P. aeruginosa, ouvrant la voie à de nouvelles stratégies antimicrobiennes.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">Pseudomonas aeruginosa is an opportunistic pathogenic bacterium involved in numerous nosocomial infections, and its increasing resistance to antibiotics is a growing concern. This thesis explores trans-translation, a translation quality control mechanism that releases ribosomes stalled on truncated mRNAs. This process relies on the action of the SmpB protein and tmRNA, which ensure the canonical recycling of translation complexes. Inactivation of trans-translation reduces the growth and virulence of P. aeruginosa. An in vivo screening system was developed to identify trans-translation inhibitors. It consists of two biosensor strains and relies on the red fluorescence of protoporphyrin IX. This study highlights trans-translation as a potential therapeutic target against P. aeruginosa, paving the way for new antimicrobial strategies.</dcterms:abstract>
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