The infiltration of M2 polarized macrophages (R=0.26, p=0.00046, Fig. 5A) and neutrophils (R=0.36, p=8.1× e-7, Fig. 5B) was correlated with the expression of CXCL5 in pancreatic cancer tissues. This evidence concerns the gene CXCL5 and pancreatic neoplasm.