Figure 4
From: Eotaxin Expression by Epithelial Cells and Plasma Cells in Chronic Asthma
A, Immunoperoxidase staining for eotaxin in a patient who died of acute severe asthma. In this peripheral airway, epithelial cells are strongly immunoreactive, as are numerous inflammatory cells in the lamina propria. B, Same region from a consecutive section, demonstrating virtually complete absence of staining when the primary antibody was omitted. C, High magnification of a region of the lamina propria from the section shown in A, demonstrating cells with the characteristic “clock-face” nuclear morphology of plasma cells that were strongly immunoreactive for eotaxin.
