FIG. 2.

Levels of inflammatory cells in BAL samples from CXCR2-KO and BALB/c wild-type (WT) mice depleted of CD4⁺ lymphocytes and inoculated with 10⁷ Pneumocystis organisms, as well as those in samples from nondepleted, noninfected BALB/c control mice (CON). CD8 Lymphs, CD8⁺ lymphocytes. Mice were sampled at 15, 21, and 35 days postinoculation. Values are means ± standard deviations (SD). n = 5, except for CXCR2-KO mice at 21 days, where n = 3; *, P < 0.05; **, P < 0.01 (comparing CXCR2-KO to WT mice). Results shown are representative of those from two independent experiments.