Fig. 5.

Defective recall response in Tgfbr2^−/− memory T cells. (A) Schematic of the experiments. The experimental setup was similar to that shown in Fig. S1. At 143 d after LM-ova infection, recipient mice were rechallenged with 2 × 10⁶ pfu of VSV-ova via i.v. injection. OT-1 T cells were examined in the peripheral blood on day 142 and in the spleen on day 147. (B) Percentage of OT-1 T cells in total CD8⁺ T cells. Each symbol in B represents data from an individual recipient mouse. **P < 0.01; NS, not significant, Student t test. Combined results from two independent experiments are shown.