Tan IIA restores the proliferation and migration capacity of LPS-stimulated RAW 264.7 cells. (A) Proliferation rates of DMSO, LPS or LPS+Tan IIA-treated RAW 264.7 cells were determined by CCK-8 assay. Optical density (OD)450 values at the indicated time points are presented as the mean ± standard deviation from six independent experiments. *P<0.05 vs. the indicated control. (B) Cell migration capacities of DMSO, LPS or LPS+Tan IIA-treated RAW 264.7 cells were assessed by Transwell assay. Representative images are shown at the top of the histogram. Four random microscopic fields (magnification, ×100) were used for cell counting (bottom histogram). Data are presented as the mean ± standard deviation from three independent experiments. *P<0.05 vs. the indicated control. Tan IIA, tanshinone IIA; LPS, lipopolysaccharide.