Figure 3.

B cells from aged mice regulate surface marker expression similar to those from young mice. SPC from young and aged QM mice were harvested and cultured with LPS or anti-CD40 with IL-4 for 48 hours. Splenocytes were stained for expression of cell surface markers. Lymphocytes were gated on FSC/SSC and B cells on B220⁺. Data are representative of 4 separate experiments.