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<dc:title xml:lang="en">Discovery of compounds for liver cancer chemoprevention using a prognostic liver signature</dc:title>
<dcterms:alternative xml:lang="fr">Découverte de composés pour la chimioprévention du cancer du foie grâce à une signature hépatique pronostique</dcterms:alternative>
<dc:subject xml:lang="fr">Maladies hépatiques chroniques (MHC)</dc:subject>
<dc:subject xml:lang="fr">Carcinome hépatocellulaire (CHC)</dc:subject>
<dc:subject xml:lang="fr">Chimioprévention</dc:subject>
<dc:subject xml:lang="fr">Fibrose hépatique</dc:subject>
<dc:subject xml:lang="fr">Aripiprazole</dc:subject>
<dc:subject xml:lang="en">Chronic liver diseases (CLD)</dc:subject>
<dc:subject xml:lang="en">Hepatocellular carcinoma (HCC)</dc:subject>
<dc:subject xml:lang="en">Chemoprevention</dc:subject>
<dc:subject xml:lang="en">Liver fibrosis</dc:subject>
<dc:subject xml:lang="en">Aripiprazole</dc:subject>
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<dcterms:abstract xml:lang="fr">Cette thèse visait à identifier des composés chimiopréventifs pan-étiologiques pour prévenir le développement du carcinome hépatocellulaire (CHC), en utilisant la signature pronostique hépatique (PLS). Un criblage a permis de sélectionner l’aripiprazole, un antipsychotique utilisé en clinique depuis plus de 20 ans mais peu étudié dans le contexte des maladies hépatiques. L’aripiprazole a démontré des effets antifibrotiques et antitumoraux in vitro et in vivo (modèle CDA-HFD), via l’inhibition des voies ERK/AKT et une modulation immunitaire. Il a réduit la prolifération des cellules de CHC sans toxicité pour les hépatocytes humains primaires. L’analyse single-cell RNAseq a confirmé ses effets sur la signalisation cancéreuse et les réponses immunitaires. Ces résultats soutiennent le repositionnement de l’aripiprazole comme agent prometteur dans la prévention du CHC.</dcterms:abstract>
<dcterms:abstract xml:lang="en">This thesis aimed to identify pan-etiological chemopreventive compounds to prevent the development of hepatocellular carcinoma (HCC), using the Prognostic Liver Signature (PLS). A screening approach led to the selection of aripiprazole, an antipsychotic used in clinical practice for over 20 years but scarcely studied in the context of liver diseases. Aripiprazole demonstrated antifibrotic and antitumor effects both in vitro and in vivo (CDA-HFD model), through inhibition of the ERK/AKT pathways and immune modulation. It reduced the proliferation of HCC cells without toxicity to primary human hepatocytes. Single-cell RNA sequencing confirmed its effects on cancer signaling and immune responses. These findings support the repositioning of aripiprazole as a promising agent for HCC prevention.</dcterms:abstract>
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