Fig. 3: Coculture of RAW264.7 macrophages with MSCs suppressed LPS-induced M1 macrophage polarization and increased Arg1 expression.

MSCs were added to RAW264.7 cells at a ratio of 1:2 (MSCs: RAW264.7 ratio). After 24 h of incubation, LPSs were added to the cells at a final concentration of 10 ng/ml. cRAW, untreated RAW264.7 cells; aRAW, LPS-treated RAW264.7 cells; aRAW + MSCs, LPS-treated RAW264.7 cells cocultured with MSCs. Data are presented as the means ± SEMs (n = 4). ***P < 0.001 versus control (cRAW); ###P < 0.001 versus LPS-treated RAW264.7 cells (aRAW)