Figure 4


Overexpression of IL-6 induced FBs differentiation into myofibroblasts and fibrosis under hypoxia. (a) Quantitative analysis of α-SMA and collagen I mRNA expression in FBs treated with IL-6 in the presence or absence of the inhibitors of IL-6, TGF-β1 and MMP2/MMP9. P<0.05: *vs the CON fibroblast, †vs IL-6 overexpressing fibroblast (n=10, each group). (b) Representative images of immunofluorescence staining for α-SMA (red) and collagen I (green) in FBs treated as mentioned previously. Nuclei were stained with DAPI (blue). Scale bar: 50 mm.