FCGR2B and acute lymphoblastic leukemia: Ingenuity Pathway AnalysisTM (IPA) of these differentially-expressed genes showed enrichment and activation of “PI3K-Signaling in B-Lymphocytes”, “B-cell receptor-signaling”, and “FcγRIIB-signaling in B-cells” pathways by hMYC-2 ALL, but not hMYC-1, relative to hlk T-ALL (data not shown).