NG2-glia

NG2 glia is a type of macroglia found in the central nervous system, which is distinct from astrocytes and oligodendrocytes (Raff et.al., 1983). They get their name from the expression of NG2 protein on their surface. Although their exact function is unknown, they are found engulfing synapses and express receptors specific for the synapses (Butt et.al., 1999). NG2 glia were believed to be the precursors of oligodendrocytes, but recent evidence suggests that they have distinct functions and divide very slowly. From an evolutionary point of view, the NG2 glia attained more complexity in the mammals and primates.