Fig. 6.
Aicda−/− immature/T1 B cells are resistant to BCR-induced apoptosis. The susceptibility of immature/T1 B cells from Aicda+/+ and Aicda−/− BM to anti-IgM Ab-induced apoptosis was compared in cell culture (31). BM cells from Aicda+/+ and Aicda−/− mice were cultured in triplicate in media containing various concentrations of anti-IgM (anti-μ) Ab for 24 h. The numbers of Aicda+/+ (filled symbols) and Aicda−/− (open symbols) immature/T1 B cells in each treatment are shown. Data shown represent the means ± SD from three independent experiments.