Western Blot analysis was performed as described previously (Borden et al., 2019 (link)). Briefly, sample concentrations were determined using the Bicinchoninic assay (BCA) according to manufacturer’s protocol and ran on a Mini-PROTEAN TGX Gels (Bio-rad). Primary antibodies against Acta2 (1:1000, rabbit polyclonal, Abcam, catalog ab5694), GAPDH (1:1000, mouse monoclonal, Millipore Sigma, catalog MAB374), CTGF (1:000, rabbit polyclonal, Abcam, catalog ab6992), P-SMAD2 (1:1000, rabbit polyclonal, Millipore Sigma, catalog ZRB04953), SMAD2 (1:1000, rabbit polyclonal, Abcam, catalog EP784Y), and Vimentin (1:1000, mouse monoclonal, Abcam, catalog ab8978) overnight at 4°C, and incubated with the appropriately conjugated light-sensitive IRDye secondary antibodies (1:5000, LiCOR) for 1 h at room temperature, and visualized.
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