oligodendrocyte precursor cell obsolete oligodendrocyte precursor cell true OBSOLETE. The cell type from which oligodendrocytes develop. This cell originates from multiple structures within the developing brain including the medial ganglion eminence and the lateral ganglionic eminence. These cells migrate throughout the central nervous system and persist into adulthood where they play an important role in remyelination of injured neurons. This term has been obsoleted and replaced with updated by an updated term from the Brain Data Standards ontology, please see 'term replaced by' axiom to for new term.