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Fig. 1 | Respiratory Research

Fig. 1

From: The main rhinovirus respiratory tract adhesion site (ICAM-1) is upregulated in smokers and patients with chronic airflow limitation (CAL)

Fig. 1

Intercellular adhesion molecule-1 (ICAM-1) expression in epithelium of large (a-c) and small airways (d-f). a, d Representative section of small airway from a never smoker showing negligible ICAM-1 staining. b, e Typical normal lung function smoker showing positive staining (showed by black arrow). c, f Typical COPD-smoker showing extensive ICAM-1 staining (black arrow). Magnification = x400. BC: basal cells; EC: epithelial cells; GC; goblet cells

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Respiratory Research

ISSN: 1465-993X

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