Glial fibrillary acidic (GFA) protein in Müller glia. Immunofluorescence study of the goldfish retina.

Glial fibrillary acidic protein, the subunit of intermediate filaments specific for astrocytes, was localized by immunofluorescence in the Müller glia of goldfish retina. Based on previous studies reporting the localization in Müller glia of carbonic anhydrase C, an oligodendrocyte marker, we suggest that the main type of neuroglia in the retina combines properties which in the brain are specific for astrocytes and oligodendrocytes.