Whereas Ma et al. reported on the contribution of IL-17 producing γδ-T cells to the efficacy of anticancer chemotherapies (143), other reports showed an inverse correlation between γδ-T17 cells and overall survival, suggesting immune suppressive and tumor promoting properties of γδ-T cells by promoting accumulation of MDSCs and angiogenesis respectively (144, 145). Here, IL17A is linked to neoplasm.