Figure 3
From: Smoking accelerates aging of the small airway epithelium
Immunohistochemical staining analysis of smoking dysregulated aging genes in the small airway epithelium. Normal nonsmoker human bronchus sections from 3 independent donors were analyzed for expression of C3, clusterin (CLU), CX3CL1, LAPTM5, MGST1 and SPP1 using gene specific antibodies. Isotype specific antibody was used as negative control. Scale bar 20 μm.