Fig. 7

ADSCs inhibit apoptosis in irradiated epidermal cells in vitro. NOK and HaCaT cells were treated with ADSC culture supernatant for 72 h and were then harvested for the detection of apoptosis using flow cytometry. Upper left quadrant—necrotic cells; upper right quadrant—late apoptotic cells; lower left quadrant—viable cells; lower right quadrant—early apoptotic cells. Representative fluorescence photomicrographs of TUNEL-positive apoptotic cells are shown (A, B). The results are expressed as the mean ± SEM. *p < 0.05, **p < 0.01, ***p < 0.001 vs. the control group