Our study showed the patients with BC had three different cytokine expression patterns: (1) VEGF, IL-9, GM-CSF, IL-13, IL-4, and IFNγ; (2) IL-8, IL-10, IL-12, IL-5, IL-7, IL-1α, GCSF, IL-1β, and TNFα; (3) IL-2, eotaxin, MIP1β, MIP1α, IL-17, and bFGF. The gene discussed is IL9; the disease is breast cancer.