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<dc:title xml:lang="fr">Study of new molecules to reactivate mutant p53 in gastric</dc:title>
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<dc:subject xml:lang="fr">Cancer gastrique</dc:subject>
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<dcterms:abstract xml:lang="fr">Le facteur de transcription p53 est fréquemment muté dans les tumeurs gastriques. Ces mutations affectent la fois la fonction de la protéine, mais également son repliement, à l’origine d’agrégats. Les agrégats de p53 présentent un gain de fonction pour la tumeur et sont associés à l’agressivité de la tumeur. Durant mon projet de thèse, nous avons caractérisé de nouveaux composés chimiques bifonctionnels capables de cibler la mutation p53-Y220C. Le but de ce travail était de restaurer les fonctions et la conformation originelle de p53, et aussi d’inhiber la formation d’agrégats de p53 dans les cellules de cancer gastrique. Ce travail permet également de mettre en lumière l’importance de l’atome d’iode dans l’activité de ces composés. Les petites molécules ciblant spécifiquement les mutants p53 ouvrent de nouvelles perspectives thérapeutiques. Leur utilisation seule ou en combinaison avec des chimiothérapies pourrait permettre d’améliorer la prise en charge des patients.</dcterms:abstract>
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