GEP of CD25^POS AML in all integrated risk groups. (A) 2-dimensional hierarchical clustering of differentially expressed genes between CD25^POS (blue) and CD25^NEG (red) AML cases. Each column represents a patient, and each row represents a gene. (B) Gene set enrichment analysis using previously reported leukemia stem cell signatures as gene sets showing significant enrichment of the 2 reported signatures in CD25 expression profiles.