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. 2012 Oct 22;209(11):1907–1917. doi: 10.1084/jem.20112744

Figure 2.

Figure 2.

CARD11 mutation induces Blimp1-dependent plasma cell differentiation and autoantibody production. (a) Flow cytometric analysis of splenocytes 9 d after transplantation of Prdm1+/+ or Prdm1−/− B cells, or no B cells, into Rag1-deficient recipients. The top panels show the percentage of transplanted IgM+ B cells in the spleen. The bottom panels are gated on the transplanted B cells and show the percentage of total EGFP+ cells and the proportion of these cells that are either EGFP+ CD19+ B cells or EGFP+ CD19 plasmablasts. (b) Fold increase in numbers of EGFP+ B cells normalized to the number of EV-expressing Prdm1+/+ B cells detected at day 9 after transfer. (c) Mean number and SEM of EGFP+ CD19+ B cells or EGFP+ CD19 plasmablasts in the spleen (n = 3 mice per group and time) on the indicated days after transplantation (one-way ANOVA: P < 0.0001). (d) Amount of anti-HEL IgM relative to a standard reference serum from an Ig transgenic mouse, measured by ELISA in serum from transgenic and HEL transgenic mice 11 d after transplantation of HEL-specific B cells transduced with the indicated vectors (n = 3 mice per group; one-way ANOVA: P < 0.0001).