Delta/Notch Signaling in Glia Maintains Motor Nerve Barrier Function and Synaptic Transmission by Controlling Matrix Metalloproteinase Expression

Scientists identified Delta/Notch signaling in subperineurial glia, a crucial glial type for Drosophila motor axon ensheathment and the blood–brain barrier, to be essential for controlling the expression of matrix metalloproteinase 1, a major regulator of the ECM.