Figure 4. Effect of BE-IS on the viability of RAW264.7 cells.

Cells were incubated for 24% DMSO, 1 µg/ml LPS, or BE-IS (1.25, 2.5, 5, 10, 20 µg/ml, dissolved in 0.1% DMSO). Cell viability was determined by MTT assay. The optical density was measured at 550 nm on a microplate reader. Values are expressed as mean ± S.E. for three different experiments performed in triplicate.