Fig. 3.
Effects of IFN-α on the proliferation of BaF3/mMpl cells.
BaF3/mMpl cells were washed free of IL-3 and placed in culture in the indicated concentrations of mTPO and IFN-α. After 2 days, MTT assays were performed; the mean value of 7 experiments is shown. *P < .05 in comparison with cultures devoid of IFN-α.