(A and B) 1 × 106 CFSE-labeled OT-1 T cells were adoptively transferred into WT,
Dock8−/−, and
Batf3−/− mice. One day later, the recipient mice were i.v. infected with
103 live rLm-OVA (A) or with 108 HKLm-OVA (B). After 3 days, the mice were sacrificed, and the spleens
were collected for OT-1 cell proliferation and IFNγ production analysis by flow cytometry. Results are representative of
five independent experiments with n = 3 or 4/group.
(C) Wild-type (WT), Dock8−/−, and
Batf3−/− mice were i.v. injected with 107 irradiated OVA-coated MHC class
l-deficient splenocytes. 5 days later, these mice were i.v. injected with 107 OVA peptide pulsed target cells
(CFSEhi) and 107 non-pulsed cells (CFSEI0). 16 h after target cell injection, the percentage
of CFSEhl cells in the spleen was evaluated by flow cytometry. Results are representative of three independent
experiments with n = 3 or 4/group.
Numbers indicate the percentage of proliferating cells or cytokine producers in the indicated gates. Data are means
± SD. **p < 0.01, ***p < 0.001 (compared with the WT in A and B and
Batf3−/− in C). See also Figure
S1.