Cell components in proliferative vitreoretinopathy: immunofluorescent double staining of cultured cells from proliferative tissues.

Intermediate filament proteins in cultured cells from epiretinal membranes of 5 cases of proliferative vitreoretinopathy and subretinal strands of 2 cases were immunohistologically characterized. Double staining technique after colcemid treatment revealed that either keratin-positive or vimentin-positive cells were found with different ratios depending on the cases. Both positive and both negative cells were also observed. Desmin and glial fibrillary acidic protein were totally negative.