Figure 3From: Endothelial cell senescence is associated with disrupted cell-cell junctions and increased monolayer permeabilityCo-culture of young and senescent HUVECs. (a) Representative photograph of toluidine blue staining of a co-culture (bar 100 μm). (b) Immunofluorescent labeling of γH2AX. Only the senescent HUVEC displays positive labeling for γH2AX. Right image shows the corresponding DAPI staining (bar 25 μm).Back to article page