Doses of at least 4 Gy induced module 1 (e.g., CCL5, CXCL10) and module 4 (e.g., CCL20, CXCL8) chemokines in pancreatic cancer cells, with larger effects using higher radiation doses (Figure 3, C and D). Here, CXCL8 is linked to familial pancreatic carcinoma.