To analyze the role of these chemokines in metastasis, we implanted MDA breast cancer cells co-expressing CXCL9 and CXCL10 bilaterally into the fourth mammary fat pads of female, nonobese, diabetic-severe combined immunodeficiency gamma (NSG) mice (Fig. 3a). The gene discussed is CXCL10; the disease is breast carcinoma.