In contrast to untransformed cells, the breast cancer cells had a very low expression of the cytokines, at both at neutral (IL6: 0.004±0.002; IL8: 0.044±0.005) and acidic (IL6: 0.004±0.001; IL8: 0.049±0.007) pH values. The gene discussed is CXCL8; the disease is breast cancer.