Fig. S7
Cardiac cells with accumulated DNA damage are less prone to proliferate. (A) Immunofluorescence staining on a WT and a tert-/- heart section with anti-BrdU (red) and anti-γH2AX (green). Nuclei are counterstained with DAPI (blue). (A1-A4) Boxed areas in the whole-mount heart views of WT (A1,A2) and tert-/- (A3,A4) are shown at high magnification in the right panels to exemplify individual BrDU-positive cells. Scale bars: 100 µm (whole mount views), 10 µm (magnifications). (B) Quantification of cells double positive for BrDU and γH2AX. Data are means ± SEM of 4 sections/heart from a total of 3 hearts per condition (p=0.106, unpaired Student’s t-test). ns, not significant. Related to Figure 6. |