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IR-783 inhibits filopodia formation by reducing F-actin formation. (A) Exposure of MDA-MB-231 and MCF-7 cells to 80 μM IR-783 for 24 h, the levels of F-actin (green) in cells were labeled and nuclei were stained with DAPI prior to imaging via confocal microscopy. Scale bar, 10 μm.
