Figure 3. The effect of W-54011 on TUNEL-positive cells. (A) Representative TUNEL staining for lung tissues. Dead cells were stained with green and DAPI was used for staining the nucleus (blue). The scale bar represents 50 μm. (B) Quantitative analysis for the number of TUNEL-positive cells in different groups (n = 7). *P < 0.05, **P < 0.01 and ***P < 0.001.