Among these hub genes, 14 genes including CCL26, CD1A, CLCNKB, CXCL1, CXCL3, CXCL5, IL2RG, IL18, KCND2, KCNG1, MMP1, MMP7, STMN2 and TUBB3 were significantly associated with inferior OS in AML patients (Supplementary Fig. S4). This evidence concerns the gene MMP1 and acute myeloid leukemia.