Figure 4.
Activated B cells migrate normally to the outer PALS in TNF−/− mice. Splenic HEL-Ig Tg B cells were isolated and stimulated in vitro for 60 min with 100 ng/ml HEL. Cells were washed and transferred intravenously into WT, TNF−/−, and TNF/LTα−/− recipients. Spleen sections were analyzed 20 h later by staining for B cells (red) and activated HEL-specific Ig Tg B cells (green/yellow). Bar = 200 μm.
