Table 3. Number of CD11b+CD11cHi and CD11b+CD11cLo cells 14 days after pneumococcal challenge.
IL-10 | IFN-γ | CCR5 | ||
---|---|---|---|---|
Spleen | CD11b+CD11cHi Control Ab |
2.32 ± 0.2 | 3.73 ± 0.2 | 19.6 ± 0.1 |
CD11b+CD11c Hi Anti-CCL5 Ab |
4.41 ± 0.2* | 2.57 ± 0.3* | 12.5 ± 0.2* | |
Cervical Lymph Node |
CD11b+CD11c Hi Control Ab |
0.10 ± 0.1 | 0.29±0.1 | 1.66 ± 0.1 |
CD11b+CD11c Hi Anti-CCL5 Ab |
0.21 ± 0.2* | 0.11 ± 0.1* | 1.58 ± 0.2 | |
Spleen | CD11b+CD11cLo Control Ab |
8.85 ± 0.3 | 7.68 ± 0.3 | 7.56 ± 0.1 |
CD11b+CD11c Lo Anti-CCL5 Ab |
10.4 ± 0.2 | 8.62 ± 0.3 | 6.09 ± 0.1 | |
Cervical Lymph Node |
CD11b+CD11c Lo Control Ab |
0.18 ± 0.1 | 0.40 ± 0.1 | 0.99 ± 0.2 |
CD11b+CD11c Lo Anti-CCL5 Ab |
0.22 ± 0.1 | 0.73±0.2* | 0.77 ± 0.1 |
C57BL/6 × BALB/c F1 mice were intranasally challenged with PBS (uninfected) or 107 CFUs of S. pneumoniae strain EF3030 in a 15 μL volume of Ringer’s solution and treated with either control or anti-CCL5 antibodies. Spleen and cervical lymph node lymphocytes were purified and prepared for cell surface and intracellular flow cytometry analysis 14 days after bacterial challenge. The fold increases ± SEM in the number of (×106) of CD3−CD11b+ CD11cHi or CD3− CD11b+ CD11cLo lymphocytes that were CCL5, IL-10, IFN-γ or CCR5 positive are shown. Asterisks (*) indicate statistically significant (p < 0.01) increases between infected over infected local cell subpopulations from three separate experiments with two groups containing 10 mice each.