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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

CEBPA point mutations in hematological malignancies.

The CCAAT/enhancer-binding protein-alpha (CEBPA) is a transcription factor strongly implicated in myelopoiesis through control of proliferation and differentiation of myeloid progenitors. Recently, several works have reported the presence of CEBPA-acquired mutations in hematological malignancies. In this work, we analyzed characteristics of mutations and their correlation with disease characteristics described in previous studies. In the 1175 patients reported, 146 CEBPA mutations were identified in 96 patients. Mutations were found in the whole gene sequence, but cluster regions were clearly identified. Furthermore, two categories of mutations were reported: out-of-frame ins/del often in the N-terminal region, and in-frame ins/del often in the C-terminal region. CEBPA mutations were reported exclusively in acute myeloid leukemia (AML) (according to WHO classification criteria) and mutated patients preferentially belonged to M1, M2 and M4 FAB subtypes. All but one case belonged to the 'intermediate' prognostic subgroup of MRC classification. In the absence of poor prognostic factors, patients with CEBPA mutation had favorable outcome, very similar to that of the t(8;21), inv(16), t(15;17) subgroup. Systematic analysis of CEBPA mutations, in addition to that of alterations in master genes of hematopoiesis, may be useful to assess the prognosis of AML particularly in patients belonging to the 'intermediate' prognostic subgroup.[1]


  1. CEBPA point mutations in hematological malignancies. Leroy, H., Roumier, C., Huyghe, P., Biggio, V., Fenaux, P., Preudhomme, C. Leukemia (2005) [Pubmed]
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