Summary
Oligodendroglial cytoplasmic inclusions (OCI) in multiple system atrophy were investigated immunocytochemically and ultrastructurally. Among the 17 cases examined, 16 had OCIs. Almost all OCIs were positive for both αB-crystallin and ubiquitin. The antibodies against tubulin, paired helical filament and tau stained OCIs to various extents. Ultrastructurally OCIs consisted of meshworks of granule-associated filaments about 25 nm in diameter that sometimes formed flame-shaped tangle-like structures. Immunoelectron microscopy showed that an epitope of αB-crystallin was located on the granule-associated filaments composing OCIs. Our studies further support a cooperative role of αB-crystallin, ubiquitin and cytoskeletal protein in the formation of some types of intracytoplasmic inclusions.
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Murayama, S., Arima, K., Nakazato, Y. et al. Immunocytochemical and ultrastructural studies of neuronal and oligodendroglial cytoplasmic inclusions in multiple system atrophy. Acta Neuropathol 84, 32–38 (1992). https://doi.org/10.1007/BF00427212
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DOI: https://doi.org/10.1007/BF00427212