Representative microphotographs of murine wound sections immunostained for Ly6G (neutrophils, green) and DNA-histone (displayed as expulsed streaks in red indicative of NETs). Wounds injected with LPS primed MSCs (upper row, outer right panel) depict enhanced NET formation (magnified inset) and increased expression of activation markers like neutrophil elastase (NE, lower panel, outer left panel) compared to wounds injected with non-primed MSC (middle panels) or PBS injected wounds (outer left panels). Murine skin wounds treated with PBS injections served as control. Scale bar: 10μm (upper row) and 50μm (lower row). To facilitate comparison, areas inside the rectangles are shown at 5x magnification in the insets. 