Stainings for CD31 and α-SMA were performed in cryosections from liver tissue (3 and 7 μm thick, respectively) as described previously41 (link)42 (link)43 (link). Briefly, after several steps cryosections were incubated with a mouse-anti-SMA antibody (clone 1A4; Sigma-Aldrich, Munich, Germany), or with antibody against CD31 (ab24590, Abcam, Cambridge, UK). Thereafter, a biotinylated rabbit-anti-mouse secondary antibody (Dako, Glostrup, Denmark) was used.
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