Supplemental Movie EV12. Immune cells migrating under vessel confinement in vivo can trigger deformation of the adjacent vessel wall. Vessel wall observed to deform as hemocyte migrates along 75h APF vessel (hemocyte nucleus in yellow, Collagen IV in grey, SrpH2AmChe / Vkg-GFP). The images were acquired every 33 seconds. Scalebar is 5 m. 

