Fig. 10

Proliferation rates of HELF cells at 0, 8, 16, 24, and 48 h for concentrations of 0, 40, 80, 160, 320, and 640 μg/ml were measured using the CCK-8 assay (n = 6). OM85 was found to be non-toxic, and it is evident from the graph that there were no significant differences in proliferation rates with varying time and OM85 concentrations.