Figure 5. Blockade of antigen export from infected DC enhances overall antigen-specific CD4 T cell activation in vivo.
Comparison of Ag85B-specific CD4 T cell proliferation in MHC II+/+ recipients following transfer of infected kinesin-2 depleted or control MHC II+/+ DC. (A) Frequency of Ag85B-specific P25TCR-Tg CD4+ T cells in lymph nodes. (B) Quantitation of total P25TCR-Tg CD4+ T cells in lymph nodes of groups of mice shown in A. (C) Proportion of P25TCR-Tg cells that underwent ≥1 cycle of proliferation (CFSEdim) in lymph nodes of groups of mice shown in A. (D) Quantitation of P25TCR-Tg cells that underwent ≥1 cycle of proliferation (CFSEdim) in lymph nodes of groups of mice in C. Data are mean ± SEM of four pools of mice (n=8) per experimental group and represent 2 independent experiments. *p < 0.05; **p < 0.01; ***p < 0.001 (Student's t-test).