Movie 3.

Immune-responsive PSC cells are capable of phagocytosis. Representative spinning disc microscopy videos of migrating pupal tau positive cells expressing an EGFP transgene imaged from living pupae (16h APF) upon laserinduced cell ablation (green asterisks). Left: Note the formation of dynamic filopodial protrusion toward the wound. Middle: tau-positive PSC cell (yellow arrowhead) starts to phagocytose particles derived from the laser-ablated cell (green asterisk). Right: Single tau-positive PSC cell directly migrates towards a laser-ablated cell. Scale bar represents 20 μm.