Drosophila ß_Heavy-Spectrin Is Required in Polarized Ensheathing Glia That Form a Diffusion-Barrier around the Neuropil

Scientists found that ensheathing glia were polarized with a basolateral plasma membrane rich in phosphatidylinositol-(3,4,5)-triphosphate and the Na+/K+-ATPase Nervana2 that abuted an ECM formed at neuropil-cortex interface.