Artículo
Germline mutations in ETV6 are associated with thrombocytopenia, red cell macrocytosis and predisposition to lymphoblastic leukemia
Noetzli, Leila; Lo, Richard W.; Lee Sherick, Alisa B.; Callaghan, Michael; Noris, Patrizia; Savoia, Anna; Rajpurkar, Madhvi; Jones, Kenneth; Gowan, Katherine; Balduini, Carlo L; Pecci, Alessandro; Gnan, Chiara; De Rocco, Daniela; Doubek, Michael; Li, Ling; Lu, Lily; Leung, Richard; Landolt Marticorena, Carolina; Hunger, Stephen; Heller, Paula Graciela
; Gutierrez Hartmann, Arthur; Xiayuan, Liang; Pluthero, Fred G.; Rowley, Jesse W.; Weyrich, Andrew S.; Kahr, Walter H. A.; Porter, Christopher C.; Di Paola, Jorge
Fecha de publicación:
25/03/2015
Editorial:
Nature Publishing Group
Revista:
Nature Genetics
ISSN:
1061-4036
e-ISSN:
1546-1718
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Some familial platelet disorders are associated with predisposition to leukemia, myelodysplastic syndrome (MDS) or dyserythropoietic anemia. We identified a family with autosomal dominant thrombocytopenia, high erythrocyte mean corpuscular volume (MCV) and two occurrences of B cell-precursor acute lymphoblastic leukemia (ALL). Whole-exome sequencing identified a heterozygous single-nucleotide change in ETV6 (ets variant 6), c.641C>T, encoding a p.Pro214Leu substitution in the central domain, segregating with thrombocytopenia and elevated MCV. A screen of 23 families with similar phenotypes identified 2 with ETV6 mutations. One family also had a mutation encoding p.Pro214Leu and one individual with ALL. The other family had a c.1252A>G transition producing a p.Arg418Gly substitution in the DNA-binding domain, with alternative splicing and exon skipping. Functional characterization of these mutations showed aberrant cellular localization of mutant and endogenous ETV6, decreased transcriptional repression and altered megakaryocyte maturation. Our findings underscore a key role for ETV6 in platelet formation and leukemia predisposition.
Palabras clave:
Etv6
,
Thrombocytopenia
,
Leukemia
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Citación
Noetzli, Leila; Lo, Richard W.; Lee Sherick, Alisa B.; Callaghan, Michael; Noris, Patrizia; et al.; Germline mutations in ETV6 are associated with thrombocytopenia, red cell macrocytosis and predisposition to lymphoblastic leukemia; Nature Publishing Group; Nature Genetics; 47; 5; 25-3-2015; 535-538
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