While representative CXCL17-positive colon cancer cells such as HT-29, KM12, and Colon-205 cells showed hematogenous distant metastases with respect to their own properties (see Materials and Methods S1 and Figure S5A), CXCL17-negative DLD-1, SW620, and HCT-15 cells did not show any distant metastases (Figure S5A and S5B). Here, CXCL17 is linked to malignant colon neoplasm.