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<dc:title xml:lang="en">Integrated immunogenicity risk assessment of therapeutic antibodies : validation and characterization of preclinical assays</dc:title>
<dcterms:alternative xml:lang="fr">Évaluation intégrée des risques pour l’immunogénicité : validation et caractérisation des méthodes précliniques</dcterms:alternative>
<dc:subject xml:lang="fr">Anticorps thérapeutiques</dc:subject>
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<dc:subject xml:lang="fr">Patches de charges</dc:subject>
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<tef:elementdEntree autoriteExterne="027880966" autoriteSource="Sudoc">Anticorps monoclonaux</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">La capacité des anticorps thérapeutiques à induire une réponse immunitaire indésirable est un phénomène multifactoriel appelé immunogénicité. Il est important de concevoir de nouvelles molécules à faible potentiel d'immunogénicité car cela a des conséquences pour les patients mais aussi éventuellement sur le développement de la molécule. Les méthodes actuellement disponibles pour évaluer le risque d'immunogénicité des anticorps thérapeutiques comprennent des algorithmes in silico, des tests in vitro et des expérimentations animales, qui sont déjà appliquées dans la pratique pour guider la sélection de molécules avec des profils immunogènes vraisemblablement meilleurs. Cependant, ces méthodes ne sont actuellement pas entièrement validées et, par conséquent, une approche intégrée est envisagée pour évaluer le risque potentiel d'immunogénicité. Par conséquent, nous avons validé trois de nos méthodes, élargissant le panel de test d'immunogénicité disponible, afin de mieux comprendre les propriétés et les mécanismes conduisant à l'immunogénicité des anticorps thérapeutiques. En appliquant cette stratégie nous avons démontré que les patches de charges positifs sur les anticorps et une internalisation élevée dans les cellules dendritiques sont d’importants facteurs de risque pour l’immunogénicité.</dcterms:abstract>
<dcterms:abstract xml:lang="en">The ability of therapeutic antibodies to induce an unwanted immune response is a multifactorial phenomenon called immunogenicity. There is a growing need to design new molecules with a low potential for immunogenicity as it has consequences on patient safety and eventually on the molecule development. Currently available techniques to assess the risk of drug immunogenicity include in-silico algorithms, in-vitro assays and in-vivo experiments, which are already applied in practice to guide the selection of molecules with presumably better immunogenic profiles. However, these methods are presently not fully validated and therefore an integrated approach is considered to evaluate the potential immunogenicity risk. Therefore, we validated three of our assays, expanding the immunogenicity assay toolbox available; to better understand the properties and mechanisms leading to immunogenicity of therapeutic antibodies. We demonstrated, applying this integrated approach, that positive charge patches on antibodies and high internalization into dendritic cells, are important risk factors for immunogenicity.</dcterms:abstract>
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