Yunsik Kang, Ph.D. Abstract Neuronal remodeling during development produces substantial cellular debris, which glial cells must phagocytose to maintain tissue homeostasis and guide proper circuit formation. In Drosophila, astrocytes transform into phagocytes during the larva-to-adult transition, phagocytosing synaptic, axonal, and dendritic debris. We show that Tweek, a bridge-like lipid transfer...