For example, in colon adenocarcinoma, the expression of CXCL1, CXCL2, and CXCL3 negatively correlated with EMT, whereas the expression levels of CXCL5, CXCL6, PPBP, and CXCL8 positively correlated with EMT. Here, PPBP is linked to colon adenocarcinoma.