The genes include transcriptional factors promoting early lymphoid cell development, e.g., PAX5, IKZF1, EBF1, ETV6, LMO2, which were detected in ∼40% of B-ALL cases [50], and other genes including tumor suppressor genes and cell cycle regulators (e.g., TP53, RB1, CDKN2A/CDKN2B), cytokine receptor (e.g., CRLF2, RPOR), kinase (e.g., ABL1, ABL2, CSF1R, JAK2, PDGFRB), Ras signaling pathway (e.g., KRAS, NF1, NRAS, PTPN11), lymphoid signaling (e.g., BTLA, CD200), and epigenetic modification (e.g., EZH2, CREBBP, SETD2, MLL2, NSD2) [46, 50]. This evidence concerns the gene IKZF1 and precursor B-cell acute lymphoblastic leukemia.