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. 2019 Nov 29;9:17963. doi: 10.1038/s41598-019-54292-x

Figure 7.

Figure 7

Long-term effect of TGF-β1 and anti-TGF-β1 antibody on epithelial cell lineages. (A) IHC for MUC5AC (goblet cells), ß-tubulin IV (ciliated cells) and p63 (basal cells) in ALI-HBEC using TGF-β1 (10 ng/ml), anti-TGF-β1 antibody (10 µg/ml) and control mouse IgG (10 µg/ml) during the 2 weeks of ALI differentiation (pictures are from a control ex-smoker). (B) Quantification of MUC5AC staining expressed in percentage of positive cells (n = 6), including 4 controls and 2 COPD donors as white and black dots, respectively). (C) Quantification of ß-tubulin IV staining expressed in percentage of positive cells (n = 6, including 4 controls and 2 COPD donors as white and black dots, respectively). (D) Quantification of p63 staining expressed in percentage of positive cells (n = 6, including 4 controls and 2 COPD donors as white and black dots, respectively). (E) Immunoblot for FOXJ1 (50 kDa), ß-tubulin IV (50 kDa), phospho-Smad2/3 (68 kDa) and GAPDH (37 kDa) expression in cellular lysates of ALI-HBEC from controls and COPD patients (n = 6). (F) IHC for involucrin (squamous cells) in ALI-HBEC using TGF-β1 (10 ng/ml), anti-TGF-β1 antibody (10 µg/ml) and control mouse IgG (10 µg/ml) during the 2 weeks of ALI differentiation. (G) Quantification of involucrin staining expressed in percentage of positive cells (n = 6, including 4 controls and 2 COPD donors as white and black dots, respectively, pictures are from a control ex-smoker. Scale bar, 50 µm. Friedman test and Dunn’s multiple comparison test.