6 h post-infection | 24 h post-infection | 48 h post-infection | ||||
WT | TMLeD/LeD | WT | TMLeD/LeD | WT | TMLeD/LeD | |
KC ng·mL−1 | ND | ND | 1.19 (0.72–3.10) | 1.10 (0.96–1.42) | 11.4 (10.2–15.1) | 3.70 (1.79–9.79)* |
MIP-2 ng·mL−1 | ND | ND | 3.66 (3.16–4.52) | 3.38 (2.99–3.81) | 11.8 (6.65–16.6) | 2.77 (2.23–5.54)** |
TNF-α pg·mL−1 | 20.2 (12.7–26.0) | 23.1 (15.5–30.1) | 5.17 (2.50–6.31) | 2.50 (2.50–13.1) | 116 (83.9–150) | 8.10 (4.24–39.7)* |
IL-6 pg·mL−1 | 36.4 (25.4–41.5) | 44.8 (30.5–67.2) | 19.1 (5.40–123) | 7.63 (5.38–18.3) | 889 (501–1174) | 58.8 (17.0–594)*** |
IL-10 pg·mL−1 | 6.03 (5.13–6.69) | 6.74 (6.26–7.72) | 2.50 (2.50–5.36) | 3.75 (2.50–5.38) | 8.20 (2.50–17.9) | 2.50 (2.50–2.50)* |
IL-12 pg·mL−1 | BD | BD | BD | BD | 11.3 (5.00–16.1) | 5.00 (5.00–10.1) |
IFN-γ pg·mL−1 | 1.46 (1.40–1.57) | 1.68 (1.36–2.22) | 2.19 (2.03–3.59) | 2.58 (1.96–3.19) | 23.6 (14.2–35.1) | 3.78 (2.46–16.7)* |
MCP-1 ng·mL−1 | 299 (222–341) | 315 (278–620) | 0.19 (0.15–0.24) | 0.19 (0.18–0.30) | 7.18 (4.51–10.1) | 0.95 (0.64–6.10)* |
Data are presented as median (interquartile range). Pneumonia was induced by intranasal inoculation with 5×104 Streptococcus pneumoniae CFU. KC: keratinocyte-derived chemokine; MIP-2: macrophage inflammatory protein-2; TNF-α: tumour necrosis factor-α; IL: interleukin; IFN-γ: interferon-γ; MCP-1: monocyte chemotactic protein-1; ND: not determined; BD: below detection. n=8 per group in all cases per time-point. *: p<0.05; **: p<0.01; ***: p<0.001, statistical significance compared with WT using Mann–Whitney U-test.