Table 2.

Mast cell localization within murine trachea (mean/10hpf)

	Submucosal	Intraepithelial
Sham wild type	0.60  ± 0.10	0
Sham CCR3−/−	0.95  ± 0.12	0.17  ± 0.08
OA wild type	0.60  ± 0.06	0.19  ± 0.05
OA CCR3−/−	0.80  ± 0.10	1.00  ± 0.20*

Results shown are expressed as the means ± SEM (sham-treated mice, n = 4; OA-challenged mice, n = 7). The significant difference between OA-challenged wild-type and OA-challenged CCR3−/− mice is indicated as 

^*, P < 0.002, as determined by unpaired Student's t test.