CD45RB phenotype of CD4⁺ cells from draining lymph nodes of immunized mice.

(A) The gating parameters are shown for selection of naive and memory T cells. Naive CD4⁺ T cells were selected for CD4⁺, CD44^lo, and CD62L^hi (R1 and R2 and R4), and for memory cells the CD4⁺, CD44^hi, CD62L^lo (R1 and R2 and R5) cells were selected.31 (B) The horizontal bars in the naive T-cell panels indicates the high CD45RB-expressing cells, and the memory T-cell panels illustrate the low CD45RB cell population.