Given the association of type 1 immune cells, including Th1 and CD8+ T cells, and IFNγ expression with the protective response observed in IL-13-deficient and ILC2-deficient mice, we assessed the role of CD8+ T cells and IFNγ in the enhanced anti-tumor immune response observed in the absence of ILC2s. The gene discussed is CD8A; the disease is neoplasm.