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Sox4 is a key oncogenic target in C/EBPα mutant Acute Myeloid Leukemia
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11 11 2013
Source: Cancer Cell. 2013; 24(5):575-588 -
Alternative Title:Cancer Cell
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Description:Mutation or epigenetic silencing of the transcription factor C/EBPα is observed in ∼10% of patients with acute myeloid leukemia (AML). In both cases, a common global gene expression profile is observed, but downstream targets relevant for leukemogenesis are not known. Here, we identify Sox4 as a direct target of C/EBPα whereby its expression is inversely correlated with C/EBPα activity. Downregulation of Sox4 abrogated increased self-renewal of leukemic cells and restored their differentiation. Gene expression profiles of leukemia-initiating cells (LICs) from both Sox4 overexpression and murine C/EBPα mutant AML models clustered together but differed from other types of AML. Our data demonstrate that Sox4 overexpression resulting from C/EBPα inactivation contributes to the development of leukemia with a distinct LIC phenotype.
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Pubmed ID:24183681
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Pubmed Central ID:PMC4038627
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