Figure 5.
DRE-independent regulation of neutrophilic cytokines and adhesion molecule expression. B6.D2N-Ahrd/J, Ahrdbd/b6 and Ahrdbd/dbd mice were exposed to CS for 3 days and cytokine mRNA assessed in whole lung homogenates. ICAM-1 levels were also evaluated by western blot. (A) Neutrophil cytokines—there was little difference in the induction of Cxcl1, Cxcl2, Tnf-α, il6, or cxcl5 between the three groups of mice (ns = not significant). Results are shown as means ± SEM (n = 4–5 mice per group). (B) ICAM-1 Western blot—Pulmonary ICAM-1 levels were consistent between the B6.D2N-Ahrd/J, Ahrdbd/b6, and Ahrdbd/dbd mice. There was little perceptible difference between the three groups in response to CS. (C) ICAM-1 Densitometry—There was no significant change in ICAM-1 protein expression after acute CS exposure. Results are shown as means ± SEM (n = 4–5 female mice per group).