High IL2RA/CD25 expression is a prognostic stem cell biomarker for pediatric acute myeloid leukemia without a core-binding factor

Pediatr Blood Cancer. 2024 Feb;71(2):e30803. doi: 10.1002/pbc.30803. Epub 2023 Dec 6.

Abstract

CD25 is an aberrant marker expressed on the leukemic stem cell (LSC) surface and an immunotherapy target in acute myeloid leukemia (AML). However, the clinical prevalence and significance of CD25 expression in pediatric AML are unknown. High IL2RA/CD25 expression in pediatric AML showed a stem cell-like phenotype, and elevated CD25 expression was associated with lower overall survival (p < .001) and event-free survival (p < .001) in the Japanese Pediatric Leukemia/Lymphoma Study Group AML-05 study. This finding was reproduced in AML without a core-binding factor in the Children's Oncology Group study cohort. High CD25 expression has prognostic significance in pediatric AML.

Keywords: CD25; RNA sequencing; acute myeloid leukemia; children; leukemic stem cells.

MeSH terms

  • Biomarkers / metabolism
  • Child
  • Core Binding Factors*
  • Humans
  • Interleukin-2 Receptor alpha Subunit
  • Leukemia, Myeloid, Acute* / drug therapy
  • Leukemia, Myeloid, Acute* / therapy
  • Neoplastic Stem Cells
  • Prognosis

Substances

  • Core Binding Factors
  • Biomarkers
  • IL2RA protein, human
  • Interleukin-2 Receptor alpha Subunit