Analysis of genes conspicuously (≥10 fold) upregulated in MAC-1/2A/2B compared to 14 control T-ALL cell lines (see Materials and Methods) using the GSEA package highlighted the following ontology categories (detailled in Table S1A): “CD133+ hematopoietic stem cells” (p = 0e0), “T-cell differentiation” (p = 0e0), “recent thymic emigrants” (p≤3.7e12). The gene discussed is PROM1; the disease is acute lymphoblastic leukemia.