Fig. 1

TLR4 expression in pVW-MSCs cultured with or without LPS (10 μg/ml) for 1 and 4 h and after additional 24 h of recovery after LPS removal (4hR). a: flow cytometry analysis were performed in not fixed and not permeabilized cells for TLR4 surface expression determination (TLR4: Surface) and in fixed and permeabilized cells to measure the overall TLR4 amount (TLR4: Total). Red histograms: stained cells; blue histograms: control cells. b: representative Western Blot of TLR4 and housekeeping β-tubulin and relative quantification were presented. c: representative images of TLR4 immunostaining of pVW-MSCs cultured with or without LPS (10 μg/ml) for 4 h. pVW-MSCs nuclei were stained with Hoechst 33258 (blue). Scale bar = 10 μm. Data shown represent the mean ± SD of three biological replicates, each experiment is repeated three times. Data were analysed using one-way ANOVA followed by the Tukey’s post hoc comparison test. Different letters above the bars indicate significant differences (p < 0.05). (AU = Arbitrary Units)