A Child With Dyserythropoietic Anemia and Megakaryocyte Dysplasia Due to a Novel 5′UTR GATA1s Splice Mutation

Jacob Zucker, Constance Temm, Magdalena Czader, Grzegorz Nalepa

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

We describe a child with dyserythropoietic anemia, thrombocytosis, functional platelet defect, and megakaryocyte dysplasia. We show that (i) this constellation of hematopoietic abnormalities was due to a germline mutation within the 5′ untranslated region (5′UTR) of globin transcription factor 1 (GATA1); (ii) the mutation impaired a 5′UTR GATA1 splicing site, with promoted production of the shortened GATA1 isoform lacking the N-terminus; and (iii) expression of the GATA1 N-terminus is restricted to erythroblasts and megakaryocytes in normal marrow, consistent with the patient's abnormal erythropoiesis and megakaryopoiesis. Our findings provide insights into the clinically relevant in vivo function of the N-terminal domain of GATA1 in human hematopoiesis.

Original languageEnglish (US)
Pages (from-to)917-921
Number of pages5
JournalPediatric Blood and Cancer
Volume63
Issue number5
DOIs
StatePublished - May 1 2016

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Keywords

  • Dyserythropoietic anemia
  • GATA1
  • Megakaryocyte dysplasia

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Hematology
  • Oncology

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