Sections were stained with the HABP as described in Methods (magnification bar 100 µm). HA deposition is shown for lungs from naïve (unchallenged) mouse and from OVA-sensitized mice during the course of allergen challenge. Mice were sacrificed at the following time points during the course of antigen exposure at 6 hours (6h), 12 hours (12h), 1 day (1d), 2 days (2d), 4 days (4d), 6 days (6d), 8 days (8d), 2 weeks (2w), 4 weeks (4w), 6 weeks (6w), and 8 weeks (8w).
=> indicates the airway of lung section.
Δ indicates the blood vessel of lung section.
> indicates the alveolar interstitium of lung section