To confirm the effect of PA and OA on the efficacy of Vγ9Vδ2-T cells against tumors, different diets conditioning Rag2–/–γc–/– mice were established in which mice were fed with low-fat diet (LFD), palm oil high-fat diet (HFD), olive oil HFD, or palm and olive oil HFD for 30 days, and then GFP+ A549 tumor cells were inoculated into these mice subcutaneously. Here, RAG2 is linked to neoplasm.