Figure 3

Proliferation of T cells in the presence or absence of stromal cells. T cell lines generated from BMMC from the femur as described in Materials and Methods were stimulated with IL-15 (50 ng/ml) or anti-CD3 (3 ng/ml) and IL-2 (20 ng/ml) for four days in the presence or absence of stromal cells. T cells were labeled with CFSE and proliferation was measured on day 5. One representative example of two independent experiments is shown.