Representative photomicrographs of confocal microscopy of sections from differently injected day 1 wounds stained for Ly6G+ neutrophils (green) and F4/80+ macrophages (red). Nuclei are stained with DAPI (blue). Double staining was performed for sections of day 1 wounds injected with PBS (control), non-primed MSCs, LPS primed MSCs and LPS primed TLR4-silenced MSCs Double stained cells indicate phagocytic engulfment of neutrophils by macrophages. To facilitate comparison, areas inside the rectangles are shown at 5x magnification in the insets. Scale bar: 100µm. 