For example, CCL2, CCL5, CXCL8, and CXCL12 can promote breast cancer,92, 93, 94, 95, 96 while CXCL9, CXCL10, and CCL16 can inhibit breast cancer.97, 98, 99, 100. Here, CXCL12 is linked to breast carcinoma.