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     <dc:title xml:lang="fr">Comparaison de populations lymphoïdes T circulantes entre patients DLBCL : répondeurs et non répondeurs à un traitement par CAR-T</dc:title>
     <dcterms:alternative xml:lang="en">Comparison of circulating T lymphoid populations between DLBCL patients: responders and non-responders to CAR-T therapy</dcterms:alternative>
     <dc:subject xml:lang="fr">Cellules CAR-T</dc:subject><dc:subject xml:lang="fr">Lymphome Diffus à Grandes Cellules B</dc:subject><dc:subject xml:lang="fr">Suivi immunologique</dc:subject><dc:subject xml:lang="fr">Cytométrie</dc:subject><dc:subject xml:lang="fr">Biomarqueur</dc:subject>
     <dc:subject xml:lang="en">CART cells</dc:subject><dc:subject xml:lang="en">Diffuse Large B-cell Lymphoma</dc:subject><dc:subject xml:lang="en">Immunomonitoring</dc:subject><dc:subject xml:lang="en">Cytometry</dc:subject><dc:subject xml:lang="en">Biomarker</dc:subject>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="029596351">Lymphocytes T</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027623106">Marqueurs biologiques </tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="029630681">Cytométrie de flux</tef:elementdEntree>
					</tef:vedetteRameauNomCommun><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="09804382X">Lymphome diffus à grandes cellules B</tef:elementdEntree>
					</tef:vedetteRameauNomCommun><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="20003295X">Récepteurs antigéniques chimériques</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="02730731X">Cancer -- Thérapeutique</tef:elementdEntree>
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     <dcterms:abstract xml:lang="fr">Les CAR-T cells représentent un nouvel espoir chez les patients atteints de DLBCL en rechute ou réfractaire, dont le pronostic est sombre. Au CHU de Rennes, un suivi rigoureux des patients sous CAR-T cells a été mis en place et notamment par cytométrie en flux mais certaines données restent inexploitées actuellement. Dans notre étude, nous avons souhaité déterminer l’intérêt de ces analyses complémentaires en comparant les populations lymphoïdes T circulantes entre patients DLBCL répondeurs et non répondeurs grâce aux données issus du suivi en cytométrie de 49 patients (28 répondeurs et 21 non répondeurs). Les résultats suggèrent notamment deux facteurs prédictifs de la réponse aux CAR-T cells : les lymphocytes T régulateurs présents initialement dans la réponse au traitement et le niveau d’épuisement des lymphocytes T CD8 effecteurs des lymphocytes non CAR-T. En conclusion, ces travaux démontrent un réel intérêt à l’étude des sous populations lymphoïdes T circulantes afin de mieux cibler les populations pouvant répondre au traitement.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">CAR-T cells offer new hope for patients with relapsed or refractory DLBCL, whose prognosis remains poor. At the University Hospital of Rennes, a meticulous follow-up of patients undergoing CAR-T cell therapy has been set up, notably using flow cytometry, but some data currently remain unexploited. In our study, we set out to determine the value of these complementary analyses by comparing circulating T lymphoid populations between responder and non-responder DLBCL patients, using data from the cytometric follow-up of 49 patients (28 responders and 21 non-responders). Namely results suggest two predictive factors of response to CAR-T cells: the regulatory T cells initially present in response to treatment and the level of exhausted effector CD8 T cells from non-CAR-T cells. In conclusion, this study shows a real interest in studying circulating T lymphoid sub-populations in order to better target populations that may respond to treatment.</dcterms:abstract>
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       <tef:nom>Villoteau</tef:nom>
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