The markedly shortened survival time in the anti‐γδTCR mAb‐treated aged mice compared with the anti‐TCRVγ4‐treated aged mice demonstrated that the Vγ6+γδT cells with high ability to produce IL‐17A also exhibited important anti‐tumor activity in the development of B16/F10 melanoma in aged lungs (Figure 5d). Here, IL17A is linked to neoplasm.