hFcγRI can trigger IC-induced airway inflammation in transgenic mice. (A-B) Neutrophil count (A) and percentage (B) among leukocytes. (C-D) Alveolar macrophage count (C) and percentage (D) among leukocytes. (E-F) Myeloperoxidase (MPO; E) level and hemorrhage score (F) in BAL from hFcγRI^tg 5KO mice after injection of the indicated reagents. IC indicates OVA injected intravenously followed by anti-OVA antiserum injected intranasally (n = 4 in all groups). Data are representative of at least 2 independent experiments and are represented as means ± SEM.