Research Article

Upregulation of Plasminogen Activator Inhibitor-1 in Irradiated Recipient Arteries and Veins from Free Tissue Transfer Reconstruction in Cancer Patients

Figure 4

Double-labelling of PAI-1 (red) and CD68 (green) in an irradiated artery. Arrowheads indicate colocalization of PAI-1 and CD68, suggesting that PAI-1 is expressed in macrophages. Arrows indicate cells with PAI-1 expression but no CD68 expression. Nuclear stain (DAPI) is shown in blue (scale bar = 50 μm).