NG2-Glia (Polydendrocytes)

Classically, the central nervous system (CNS) was considered to contain neurons and three main types of glial cells-astrocytes, oligodendrocytes, and microglia. Now, it has been clearly established that NG2-glia are a fourth glial cell type that are identified and defined by their expression of the NG2 chondroitin sulfate proteoglycan (Cspg4).