MYH10 protein expression in platelets as a biomarker of RUNX1 and FLI1 alterations.
Blood
; 120(13): 2719-22, 2012 Sep 27.
Article
em En
| MEDLINE
| ID: mdl-22677128
ABSTRACT
RUNX1 gene alterations are associated with acquired and inherited hematologic malignancies that include familial platelet disorder/acute myeloid leukemia, primary or secondary acute myeloid leukemia, and chronic myelomonocytic leukemia. Recently, we reported that RUNX1-mediated silencing of nonmuscle myosin heavy chain IIB (MYH10) was required for megakaryocyte ploidization and maturation. Here we demonstrate that runx1 deletion in mice induces the persistence of MYH10 in platelets, and a similar persistence was observed in platelets of patients with constitutional (familial platelet disorder/acute myeloid leukemia) or acquired (chronic myelomonocytic leukemia) RUNX1 mutations. MYH10 was also detected in platelets of patients with the Paris-Trousseau syndrome, a thrombocytopenia related to the deletion of the transcription factor FLI1 that forms a complex with RUNX1 to regulate megakaryopoiesis, whereas MYH10 persistence was not observed in other inherited forms of thrombocytopenia. We propose MYH10 detection as a new and simple tool to identify inherited platelet disorders and myeloid neoplasms with abnormalities in RUNX1 and its associated proteins.
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Base de dados:
MEDLINE
Assunto principal:
Transtornos Plaquetários
/
Plaquetas
/
Biomarcadores
/
Cadeias Pesadas de Miosina
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Miosina não Muscular Tipo IIB
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Proteína Proto-Oncogênica c-fli-1
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Subunidade alfa 2 de Fator de Ligação ao Core
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Idioma:
En
Revista:
Blood
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
França