As shown in Figure 7, the expression levels of CXCL1 (p = 0.0361), CXCL3 (p = 0.0115), CXCL5 (p = 0.0008), and CXCL8 (p = 0.0145) are related to different clinicopathological stages in PAAD. The gene discussed is CXCL1; the disease is pancreatic adenocarcinoma.