Figure 1From: Comparison of innate immune agonists for induction of tracheal antimicrobial peptide gene expression in tracheal epithelial cells of cattleHistologic appearance of trypsinized primary cell cultures of bovine tracheal epithelial cells. A) Hematoxylin and eosin stain. B) Immunohistochemistry for pancytokeratin. C) Immunohistochemistry for vimentin, with immunolabeled cells shown by arrows.Back to article page