Fig. 5

A Immunohistochemical staining for mouse caspase-3. The target cells were stained with DAB (brown) as a chromogenic reagent and were counterstained with haematoxylin (blue) for background staining. Caspase-3 immunohistochemical staining magnification: × 400. Data are expressed as the mean ± SEM (n = 3). B A CCK8 assay was used to detect the viability of DC2.4 cells, recording the absorbance at 450 nm using a microplate reader. Data are expressed as the mean ± SEM (n = 6). Significance levels are indicated as follows: ns, not significant; *p < 0.05, **p < 0.01, #p < 0.05, ##p < 0.01, &p < 0.05, &&p < 0.01