Figure 4. SAL had no cytotoxic effects on rMC-1 viability, as measured using the CCK-8 kit. A: rMC-1 cells were incubated with increasing concentrations of SAL for 24 h at 37 °C. B: rMC-1 cells were incubated with increasing concentrations of SAL for 48 h at 37 °C. There was no significant reduction in viable cell numbers after treatment with SAL at concentrations up to 1000 µM.