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Neuronal inclusions of α-synuclein contribute to the pathogenesis of Krabbe disease
The Journal of pathology, 2014-04, Vol.232 (5), p.509-521
Smith, Benjamin R
Santos, Marta B
Marshall, Michael S
Cantuti-Castelvetri, Ludovico
Lopez-Rosas, Aurora
Li, Guannan
van Breemen, Richard
Claycomb, Kumiko I
Gallea, Jose I
Celej, Maria S
Crocker, Stephen J
Givogri, Maria I
Bongarzone, Ernesto R
2014
Details
Autor(en) / Beteiligte
Smith, Benjamin R
Santos, Marta B
Marshall, Michael S
Cantuti-Castelvetri, Ludovico
Lopez-Rosas, Aurora
Li, Guannan
van Breemen, Richard
Claycomb, Kumiko I
Gallea, Jose I
Celej, Maria S
Crocker, Stephen J
Givogri, Maria I
Bongarzone, Ernesto R
Titel
Neuronal inclusions of α-synuclein contribute to the pathogenesis of Krabbe disease
Ist Teil von
The Journal of pathology, 2014-04, Vol.232 (5), p.509-521
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2014
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
Demyelination is a major contributor to the general decay of neural functions in children with Krabbe disease. However, recent reports have indicated a significant involvement of neurons and axons in the neuropathology of the disease. In this study, we have investigated the nature of cellular inclusions in the Krabbe brain. Brain samples from the twitcher mouse model for Krabbe disease and from patients affected with the infantile and late‐onset forms of the disease were examined for the presence of neuronal inclusions. Our experiments demonstrated the presence of cytoplasmic aggregates of thioflavin‐S‐reactive material in both human and murine mutant brains. Most of these inclusions were associated with neurons. A few inclusions were detected to be associated with microglia and none were associated with astrocytes or oligodendrocytes. Thioflavin‐S‐reactive inclusions increased in abundance, paralleling the development of neurological symptoms, and distributed throughout the twitcher brain in areas of major involvement in cognition and motor functions. Electron microscopy confirmed the presence of aggregates of stereotypic β‐sheet folded proteinaceous material. Immunochemical analyses identified the presence of aggregated forms of α‐synuclein and ubiquitin, proteins involved in the formation of Lewy bodies in Parkinson's disease and other neurodegenerative conditions. In vitro assays demonstrated that psychosine, the neurotoxic sphingolipid accumulated in Krabbe disease, accelerated the fibrillization of α‐synuclein. This study demonstrates the occurrence of neuronal deposits of fibrillized proteins including α‐synuclein, identifying Krabbe disease as a new α‐synucleinopathy. Copyright © 2014 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd
Sprache
Englisch
Identifikatoren
ISSN: 0022-3417
eISSN: 1096-9896
DOI: 10.1002/path.4328
Titel-ID: cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_3977150
Format
–
Schlagworte
alpha-Synuclein - genetics
,
alpha-Synuclein - metabolism
,
Animals
,
axonal degeneration
,
Benzothiazoles
,
Brain - metabolism
,
Brain - physiopathology
,
Brain - ultrastructure
,
Case-Control Studies
,
Cognition
,
Disease Models, Animal
,
dying-back pathology
,
Fluorescent Dyes
,
Humans
,
Krabbe disease
,
Leukodystrophy, Globoid Cell - genetics
,
Leukodystrophy, Globoid Cell - metabolism
,
Leukodystrophy, Globoid Cell - pathology
,
Leukodystrophy, Globoid Cell - physiopathology
,
Leukodystrophy, Globoid Cell - psychology
,
Lewy bodies
,
Lewy Bodies - metabolism
,
Lewy Bodies - ultrastructure
,
Mice
,
Motor Activity
,
Mutation
,
myelin
,
Neurons - metabolism
,
Neurons - ultrastructure
,
psychosine
,
Psychosine - metabolism
,
synucleinopathies
,
Thiazoles
,
ubiquitin
,
α-synuclein
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