NK1.1+ lymphoma-like T cells isolated from the liver had a markedly reduced ability to produce IFN-γ and IL-2 compared to NK1.1− lymphoma-like cells and HMNCs of non-lymphoma dnTGFβRII IL-6−/− mice (Figure 3A), while such difference was not seen in the spleen (Figure 3B). Here, IL6 is linked to lymphoma.