To determine the effects of IFN-γ/St.∆ppGpp on tumor inflammatory cytokines, we removed the tumor tissue from CT26 tumor-bearing mice and used qRT-PCR to measure Il-1β, Tnf-α, Tgf-β, Il-6, Il-10, Gm-CSF, and G-CSF. This evidence concerns the gene CSF2 and neoplasm.