As an immunosuppressive microenvironment is favorable for tumor growth and progression, we measured the levels of proinflammatory cytokines (IFN-γ, TNF-α, GM-CSF, and IL-2) and anti-inflammatory cytokines (TGF-β, IL-17, IL-10, and IL-4) within tumors. The gene discussed is IL4; the disease is neoplasm.