Figure 4
From: Myofibroblast expression in airways and alveoli is affected by smoking and COPD
The immunohistochemical characterization of bronchi. Image 4A represents a group of α-SMA positive spindle-shaped cells (arrows) within the subepithelial area of bronchus. 4B illustrates the Tn-C expression typical of normal lung, showing positivity in basal epithelial cells and to a slight extent in basement membrane (arrows). 4C represents negative EDA-Fn expression (arrows) in bronchus. 4D shows vimentin positive cells in stroma beneath the epithelium (arrows) and a few positive cells among the epithelial cells. 4E shows desmin positivity (arrows) within a subepithelial area of bronchus. 4F demonstrates mouse isotype control. Scale bar is shown.