Extended Data Fig. 9: Histological validation of pulmonary fibrosis in bleomycin-treated mice.

Lungs from either untreated or bleomycin-treated mice (at the endpoint), stained for fibrosis markers (Masson’s trichrome and α-SMA) and MMP-7 expression. Scale bar = 200 or 50 μm as specified (n = 8 independent mice per group). The square indicates the area that is zoomed in and shown in detail below.