Accumulation of NK cells in the BM of Tg mice. BM and spleen cells from WT and Tg mice were stained for NK1.1 and CD3 as indicated. Only viable cells are shown, and the numbers represent the percentages of cells in each quadrant. Data are representative of analysis of at least 5 Tg and WT mice. There was no change in total number of spleen or BM cells in Tg mice (data not shown).