GATA2 zinc finger 2 mutation found in acute myeloid leukemia impairs myeloid differentiation

Keiko Niimi, Hitoshi Kiyoi, Yuichi Ishikawa, Fumihiko Hayakawa, Shingo Kurahashi, Rika Kihara, Akihiro Tomita, Tomoki Naoe

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6 Citations (Scopus)

Abstract

We identified two novel GATA2 mutations in acute myeloid leukemia (AML). One mutation (p.R308P-GATA2) was a R308P substitution within the zinc finger (ZF)-1 domain, and the other (p.A350_N351ins8-GATA2) was an eight-amino-acid insertion between A350 and N351 residues within the ZF-2 domain. p.R308P-GATA2 did not affect DNA-binding and transcriptional activities, while p.A350_N351ins8-GATA2 reduced them, and impaired G-CSF-induced granulocytic differentiation of 32D cells. Although p.A350_N351ins8-GATA2 did not show a dominant-negative effect over wild-type (Wt)-GATA2 by the reporter assay, it might be involved in the pathophysiology of AML by impairing myeloid differentiation because of little Wt-GATA2 expression in primary AML cells harboring the p.A350_N351ins8 mutation.

Original languageEnglish
Pages (from-to)21-25
Number of pages5
JournalLeukemia Research Reports
Volume2
Issue number1
DOIs
Publication statusPublished - 04-06-2013
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Hematology
  • Oncology

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