Figure 6.

Adra2b activation in PM_2.5-induced T cell activation: activated effector T cell (CD44^–CD62L^–, A and B) and activated memory T cell (CD44⁺CD62L^–, C and D) in the lung and spleen from FA- or PM_2.5-exposed WT and Adra2b^Tg mice on a normal chow diet. E and F, Percentage of inflammatory macrophage (Ly6C+ MΦ) in the lung and spleen from FA- or PM_2.5-exposed WT and Adra2b^Tg mice. Data are presented as means ± SE. N = 5–7 for each group. *p < .05 compared with FA within the same genotype; ^p < .05 compared with WT exposed to the same aerosol.