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The apoptosis of GC is partly reversed by NAC. HGC-27 and SGC-7901 were exposed to Cu (0.2 μM), DSF (0.24 μM, 0.3 μM), or DSF + Cu (0.24 μM, 0.3 μM + 0.2 μM) for 24 h. NAC was pretreated for 12 h. (a, b) Apoptotic cells were photographed using fluorescence microscopy. Scale bar: 100 µm. Data are expressed as mean ± standard deviation of three independent experiments. * p < 0.05 vs. the DSF/Cu group.
