Perisynaptic glial cells are distinct from previously characterized wrapping and perineurial glia.

Confocal immunofluorescence and native GFP fluorescence images of DLM neuromuscular synapses. Expression of membrane-associated GFP (mCD8-GFP) using drivers specific for wrapping (nrv2-GAL4, A-D) or perineurial (c527-Gal4, E-H) glia are restricted to the nerve trunk and major branches, in contrast to the pattern of GS2 which includes perisynaptic glial processes.