Congenital erythropoietic porphyria linked to GATA1-R216W mutation: Challenges for diagnosis

Elena Di Pierro, Roberta Russo, Zeynep Karakas, Valentina Brancaleoni, Antonella Gambale, Ismail Kurt, S. Stuart Winter, Francesca Granata, David Rodriguez Czuchlewski, Concetta Langella, Achille Iolascon, Maria Domenica Cappellini

Research output: Contribution to journalArticle

Abstract

Congenital erythropoietic porphyria (CEP) is a rare genetic disease that is characterized by a severe cutaneous photosensitivity causing unrecoverable deformities, chronic hemolytic anemia requiring blood transfusion program, and by fatal systemic complications. A correct and early diagnosis is required to develop a management plan that is appropriate to the patient's needs. Recently only one case of X-linked CEP had been reported, describing the trans-acting GATA1-R216W mutation. Here, we have characterized two novel X-linked CEP patients, both with misleading hematological phenotypes that include dyserythropoietic anemia, thrombocytopenia, and hereditary persistence of fetal hemoglobin. We compare the previously reported case to ours and propose a diagnostic paradigm for this variant of CEP. Finally, a correlation between phenotype variability and the presence of modifier mutations in loci related to disease-causing gene is described.

Original languageEnglish
Pages (from-to)491-497
Number of pages7
JournalEuropean Journal of Haematology
Volume94
Issue number6
DOIs
Publication statusPublished - Jun 1 2015

Keywords

  • Congenital erythropoietic porphyria
  • Neonatal hemolytic anemia
  • UROS, GATA1, and SEC23B mutations

ASJC Scopus subject areas

  • Hematology

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