(32) also suggested that CXCL2 (p = 0.001), CXCL3 (p = 3.8E−7), CXCL5 (p = 3.37E−13), CXCL6 (p = 1.85E−6), CXCL8 (p = 9.92E−12), CXCL9 (p = 1.27E−5), CXCL13 (p = 0.01), CXCL14 (p = 1.51E−6), and CXCL16 (p = 6.64E−12) significantly rose in pancreatic ductal adenocarcinoma compared with normal samples. This evidence concerns the gene CXCL6 and pancreatic ductal adenocarcinoma.