when antibodies to other intermediate-filament types were used , i.e . glial fibrillary acidic protein , vimentin , desmin and neurofilaments , no reaction was seen in the cells of the olfactory epithelium , with the exception of occasional staining of a few axons in the subepithelial layer by neurofilament antibodies .
C0021770
intermediate-filament
C0017626
glial fibrillary acidic protein