Abstract

ABSTRACTGenetic lineage tracing in cell type-specific mouse models of T-cell acute lymphoblastic leukemia (T-ALL) have revealed that tumor cell identity is imposed by expression of the oncogene Lim Domain Only 2 (LMO2), rather than by the target cell phenotype. This approach allowed to identify that secondary genomic alterations, like Notch1 mutations, appeared late and only took place within the thymus during T-ALL development. These concepts are therefore critical for the development of modern therapies aimed at curing T-ALL.

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