We performed loss of heterozygosity (LOH) analysis for p18−/−;Gata3+/− lymphomas and found that the remaining WT allele of Gata3 is absent in at least 2 out of 5 tumors examined (Figure 5D), further supporting the role of Gata3 in suppressing B cell lymphomas. Here, GATA3 is linked to B-cell non-Hodgkin lymphoma.