OLFM4 and cancer: The top hub genes included ELANE, APP, MMP9, BMP4, MPO, THBS1, VWF, OLFM4, LCN2, and HOXA7, which significantly enriched in regulation of leukocyte migration, myeloid cell differentiation, extrinsic apoptotic signaling pathway, and monocyte differentiation, associated with cancer.