We indeed found a small but distinct lymphoma subpopulation characterized by expression signatures Lineage-negative (CD4−CD8−CD25−CD44−), cKIT, and SCA1-positive, which was significantly lower in Nipako/ko lymphoma cells, being only one-third of Nipawt/wt cells (0.19% vs. 0.57%, p = 0.04, Figures 4A, C and Supplementary Figure 3B). This evidence concerns the gene KIT and lymphoma.