Figure 3.
In vitro activation of purified B cells. (A) Representative FACS plots and CTV-dilution profiles of B cells purified from Cd23-Cre control and Cd23-Cre Bimfl/fl mice after 4 days of treatment with 15 µg/mL lipopolysaccharide (LPS). (B) Gating strategies to distinguish small non-responding B lymphocytes from large activated B lymphoblasts, and separated CTV dilution profiles for each fraction. (C) Quantification of the cell division index for the entire LPS-treated cultures. (D) Quantification of the cell proliferation index (division index excluding cells with undiluted CTV) of LPS-treated cultures. (E,F) Cell division and proliferation indices of similar CD40L + IL4-treated B cell cultures.