Figure 6.
Immunization with antigen-activated DCs leads to proliferation of adventitial T lymphocytes within the aorta. CD40L-activated DCs were pulsed with antigen peptide and either 105 bone marrow–derived DCs in 200 μl PBS or 200 μl PBS were injected i.v. into OT-1 transgenic recipient mice. At 48 and 60 h, 1 mg BrdU was injected i.p. Aorta, pLN, spleen, and blood were collected 72 h after transfer, and the cell suspensions were stained with anti-CD45, -CD8, -CD44, and anti-BrdU Abs. All plots were gated on CD45+ lymphocyte gate. (A) Representative plots from one experiment. The numbers in quadrants represents BrdU+ cells. (B) The percentage of BrdU+ CD8+ T cells in the aortas and spleens of OT-1 control (gray bars) or immunized OT-1 recipient mice (black bars) are presented. Results mean ± SE (n = 8). **, P < 0.01.