English: Inhibition of Cdc42 activity (iCdc42) in GBM cells induces pericyte immune response on laminin-coated silicone substrates. An iCdc42-U373 GBM cell (yellow arrows) is chased by an activated host pericyte (white arrowheads), which finally engulfs it (blue arrowheads). The result of another phagocytic event is shown in the upper part of the video (second blue arrowheads). Note that the entire field is characterized by dendritic-like cells connected in a network by long thin extensions (red arrowheads). Δtime: 10 minutes; time: 8 hour; rate: 4 fps. Time between frames: 10 min; total time: 8 h.