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. 2019 Jun 6;14(6):e0217803. doi: 10.1371/journal.pone.0217803

Fig 1. IFN-β expression.

Fig 1

Representative pictures of peripheral lung sections from never smokers (A) and very severe COPD patients (B) stained with an antibody against IFN-β. High expression of IFN-β in the never smokers group (A) contrasts to the weak expression shown by very severe COPD patients (B), except for plasmacytoid dendritic cells. (C) IFN-β expression is decreased in the respiratory epithelium of COPD patient groups. The upper bar indicates the differences between non-COPD patients and COPD patients.