Fig. 5.
IL-4 induces the proliferation of BMMCs through γc- and Jak3-dependent signaling.
BMMCs from WT, γc−, and Jak3−mice were cultured in the presence of IL-3 for 36 hours, with [3H] thymidine added for the final 12 hours. Where indicated, recombinant murine IL-4 or recombinant murine IL-13 was added at 20 ng/mL. Data are means ± SD for 5 mice in each group. The mean value of IL-4–stimulated BMMCs is significantly different from the mean value of control BMMCs (IL-3 alone) in WT mice. *P < .005.