Supplementary Figure 1: Characterization of primary CAFs.

(a-b) CAFs in culture were examined by immunofluorescence (a) and flow cytometry (b; gating performed according to bead-based compensation controls) for the positivity of PDGFβ and vimentin and negativity of EpCAM and CD31. Bar = 100 μm. The experiment was repeated independently for three times with similar results.