Figure 2From: Localization of annexins A1 and A2 in the respiratory tract of healthy calves and those experimentally infected with Mannheimia haemolytica Immunohistochemistry for annexin A2 in normal tissues. (A) Trachea, with strong labeling of leukocytes but weak labeling of epithelium. Bar = 30 μm. (B) Bronchiole, with prominent labeling of epithelial cells. Bar = 30 μm (C) Labeling of individual cells in an alveolar septum consistent with macrophages or endothelial cells. (D) Absence of labeling of alveolar septa. Blood vessels (arrows) and bronchiolar epithelium are labeled. Bar = 50 μm. Inset: Intense labeling of endothelial cells in the lamina propria of a bronchus.Back to article page