α-OVA serum (OVA-IC) was administered i.v. to naive mice, whereas control
mice received either (A) PBS or (B)
α-OVAdepl. The next day the mice were challenged i.t.
with (A) OVA-FITC or (B) OVA. (A) After 18 h the mice were sacrificed. Minutes
prior to sacrifice, the mice received an i.v. injection of anti-CD45 to allow
for discrimination between cells in the vasculature and interstitium. Percentage
and number of monocytes in the extravascular space are plotted. (B) On days 1,
8, 9, and 10 the mice were challenged i.t. with OVA. On day 11 the mice were
sacrificed. Airway inflammation was assessed by determining the number of
eosinophils and CD4+ T cells in the BAL by flow cytometry.
The data represent the combined data from at least two independent experiments
with a total of at least three mice analyzed per group. Data represent the mean
± SEM. *p < 0.05,
**p < 0.01,
***p < 0.001,
****p < 0.0001. ns, not
significant.