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Br J Haematol ; 202(2): 279-283, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37144345

RESUMEN

ETV6 mutations are rare but recurrent somatic events in myeloid neoplasms and are negatively prognostic in myelodysplastic syndrome. We set out to examine the clinical and molecular characteristics of patients undergoing investigation for myeloid neoplasms, found to have deleterious ETV6 mutations. ETV6 mutations occurred in 33 of 5793 (0.6%) cases investigated and predominantly in high-risk disease entities including MDS with increased blasts, primary myelofibrosis and AML, myelodysplasia-related. In three cases, isolated iso (17q) karyotype was concurrently detected, an otherwise rare karyotype in myeloid neoplasms. ETV6 mutations were frequently subclonal and never occurred as an isolated abnormality with ASXL1 (n = 22, 75%), SRSF2 (n = 14, 42%) and SETBP1 (n = 11, 33%) the predominant co-mutations. Restricting to patients with MDS, higher rates of ASXL1, SETBP1, RUNX1 and U2AF1 mutations occurred in ETV6 mutated cases, relative to a consecutive control cohort with wild-type ETV6. The median OS of the cohort was 17.5 months. This report highlights the clinical and molecular associations of somatic ETV6 mutations in myeloid neoplasms, suggests their occurrence as a later event, and proposes further translational research questions for their role in myeloid neoplasia.


Asunto(s)
Leucemia Mieloide Aguda , Síndromes Mielodisplásicos , Trastornos Mieloproliferativos , Neoplasias , Humanos , Leucemia Mieloide Aguda/genética , Mutación , Síndromes Mielodisplásicos/genética , Trastornos Mieloproliferativos/genética , Pronóstico , Proteína ETS de Variante de Translocación 6
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