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Tumeurs intra-thoraciques : mutations oncogéniques et problématiques cliniques : prédisposition génétique au cancer broncho-pulmonaire chez le patient non-fumeur : hétérogénéité inter- et intra- tumorale des cancers broncho-pulmonaires : étude génomique intégrative des tumeurs épithéliales du thymus

Abstract : Oncogenic mutations may be identified in several genes of the Epidermal Growth Factor Receptor signaling pathway in non-small cell lung cancer. These mutations are transforming for epithelial cells of the respiratory tract through deregulation of the encoded proteins. These mutations are mutually exclusive and thus define molecular subsets of lung cancer with specific clinical, histological, and biological relevance. Here we integrated the use of mutation genotyping for the analysis of 3 specific clinical issues, including lung cancer occurring in never-smokers, multiple lung cancers, and thymic malignancies. Our results indicate that genetic polymophisms in never-smokers with lung cancer differ from those observed in smokers. Genomic profiling of multiple lung cancers suggests the feasibility of mutational profiling as a surrogate marker to evaluate the clonal relationships among multiple lung tumors, with a strong correlation with comprehensive histologic subtyping. Integrated genomic analysis of thymic malignancies identified specific molecular subsets, associated with histologic subtypes and oncogenic mutations predicting response to specific inhibitors. Taken together, our results illustrate the concept of personalized medicine in thoracic oncology, consisting of the individual analysis of molecular features of tumors to better tailor the therapeutic management of patients
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Submitted on : Thursday, January 9, 2014 - 5:02:09 PM
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Nicolas Girard. Tumeurs intra-thoraciques : mutations oncogéniques et problématiques cliniques : prédisposition génétique au cancer broncho-pulmonaire chez le patient non-fumeur : hétérogénéité inter- et intra- tumorale des cancers broncho-pulmonaires : étude génomique intégrative des tumeurs épithéliales du thymus. Médecine humaine et pathologie. Université Claude Bernard - Lyon I, 2011. Français. ⟨NNT : 2011LYO10142⟩. ⟨tel-00926538⟩

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