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. 2021 Mar 16;11:6063. doi: 10.1038/s41598-021-85561-3

Figure 4.

Figure 4

S100A11 was externalized during NETosis. Neutrophils stimulated for 4 h with phorbol 12-myristate 13-acetate (PMA), diphenylene iodonium (DPI) or a combination of both were stained for DNA (DAPI; blue) and myeloperoxidase (MPO; red) to visualize the induction of NETosis (a). Neutrophils stimulated with PMA exhibited NETosis (a,b) accompanied by S100A11 (green) release (b). In contrast, pro-inflammatory stimulation with lipopolysaccharide (LPS) did not lead to NETosis or S100A11 secretion by neutrophils (b). Ctrl, unstimulated control. Cells were visualized using an Olympus BX53 microscope with Olympus cellSens Standard imaging software V1.18. (https://www.olympus-lifescience.com/en/software/cellsens/). Representative images are shown at ×400 magnification (n = 7).