Myelinating satellite oligodendrocytes are integrated in a glial syncytium constraining neuronal high-frequency activity

Abstract

Satellite oligodendrocytes (s-OLs) are characterised by their close proximity to neocortical pyramidal cells. Here, the authors find that s-OLs myelinate axons and activity of host neurons evokes inward K+ currents in s-OLs which may work to modulate action potential burst firing by buffering extracellular K+levels.