Terminally Differentiated Epithelial Cells of the Thymic Medulla and Skin Express Nicotinic Acetylcholine Receptor Subunit α3

Figure 4

Neither cortex- (K8, K18) nor medulla-specific (K5, K15) cytokeratins are expressed by α3-subunit-positive cells. Immunostaining with K8 (a)–(a′′), K18 (b)–(b′′), K5 (c)–(c′′), and K14 (d)–(d′′) antibodies. Scale bar, 20 μm.