Figure 6.
H2S protects against SM-induced BEAS-2B cell damage. Untreated or SM-treated BEAS-2B and MRC-5 cells were further cultured for 24 h. Cell viability was assessed using the CCK-8 assay (A,C). BEAS-2B and MRC-5 cells were pretreated with the indicated concentrations of NaHS (70 μM) followed by SM (50 μM or 100 μM) treatment. Cells were further cultured for 24 h, and cell viability was tested by the CCK-8 assay (B,D). Data are presented as the mean ± SEM (n = 5). *p < 0.05 vs CTRL group (A,B); **p < 0.01 vs CTRL group (A,B); *p < 0.05 vs SM only group (C,D); **p < 0.01 vs SM only group (C,D).