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Ultrastructural characterization of the tau-immunoreactive tubules in the oligodendroglial perikarya and their inner loop processes in progressive supranuclear palsy.
- Source :
-
Acta neuropathologica [Acta Neuropathol] 1997 Jun; Vol. 93 (6), pp. 558-66. - Publication Year :
- 1997
-
Abstract
- Coiled bodies and interfascicular threads are conspicuous white matter abnormalities of brains of patients with progressive supranuclear palsy (PSP). Both structures are argyrophilic and immunoreactive for the microtubule-binding protein tau. This report concerns the ultrastructural localization of interfascicular threads and their relationship to coiled bodies in five PSP patients. We showed for the first time that abnormal tubules with a 13- to 15-nm diameter and fuzzy outer contours were the common structures of coiled bodies in the oligodendroglial perikarya and of interfascicular threads. Moreover, the tubules were immunolabeled by anti-tau antibodies. The abnormal tau-positive tubules of interfascicular threads were located in the inner loop of the myelin sheath. Our study further indicated that the thread-like structures in the white matter comprised, at least in part, oligodendroglial processes, and that they were also present in gray matter. We consider that the formation of coiled bodies in the perikarya and of interfascicular threads represents a common cytoskeletal abnormality of the oligodendroglia of PSP patients. Moreover, even though the white matter alterations of PSP resemble those of corticobasal degeneration, there are certain ultrastructural differences in the abnormal oligodendroglial tubules of the two diseases.
- Subjects :
- Aged
Antibodies, Monoclonal chemistry
Female
Humans
Immunohistochemistry
Inclusion Bodies immunology
Male
Microscopy, Immunoelectron
Microtubules chemistry
Middle Aged
Nerve Fibers chemistry
Oligodendroglia immunology
Supranuclear Palsy, Progressive metabolism
tau Proteins immunology
Inclusion Bodies ultrastructure
Microtubules ultrastructure
Nerve Fibers ultrastructure
Oligodendroglia pathology
Oligodendroglia ultrastructure
Supranuclear Palsy, Progressive pathology
tau Proteins chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 0001-6322
- Volume :
- 93
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Acta neuropathologica
- Publication Type :
- Academic Journal
- Accession number :
- 9194894
- Full Text :
- https://doi.org/10.1007/s004010050652