Fig. 3.

Fas expression on B cells from young and aged mice. Purified B cells from young and aged mice were cultured with F(ab)2 anti-µ (10 µg/ml) or media alone during 24 and 48 h. In all figures grey histograms represent B cells stained with FITC labelled anti-Fas Ab while staining with isotype control Ab is shown as thick black line histograms. One typical experiment from the three performed is shown. The statistical study was performed with One sample t-test.