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2017 ; 18
(2
): ä Nephropedia Template TP
gab.com Text
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English Wikipedia
Potential Modes of Intercellular ?-Synuclein Transmission
#MMPMID28241427
Valdinocci D
; Radford RA
; Siow SM
; Chung RS
; Pountney DL
Int J Mol Sci
2017[Feb]; 18
(2
): ä PMID28241427
show ga
Intracellular aggregates of the ?-synuclein protein result in cell loss and
dysfunction in Parkinson's disease and atypical Parkinsonism, such as multiple
system atrophy and dementia with Lewy bodies. Each of these neurodegenerative
conditions, known collectively as ?-synucleinopathies, may be characterized by a
different suite of molecular triggers that initiate pathogenesis. The mechanisms
whereby ?-synuclein aggregates mediate cytotoxicity also remain to be fully
elucidated. However, recent studies have implicated the cell-to-cell spread of
?-synuclein as the major mode of disease propagation between brain regions during
disease progression. Here, we review the current evidence for different modes of
?-synuclein cellular release, movement and uptake, including exocytosis,
exosomes, tunneling nanotubes, glymphatic flow and endocytosis. A more detailed
understanding of the major modes by which ?-synuclein pathology spreads
throughout the brain may provide new targets for therapies that halt the
progression of disease.
|*Models, Biological
[MESH]
|Animals
[MESH]
|Astrocytes/metabolism
[MESH]
|Cell Communication
[MESH]
|Exosomes/metabolism
[MESH]
|Extracellular Space/metabolism
[MESH]
|Humans
[MESH]
|Intracellular Space/*metabolism
[MESH]
|Lewy Bodies/metabolism
[MESH]
|Lewy Body Disease/metabolism/pathology
[MESH]
|Microglia/metabolism
[MESH]
|Multiple System Atrophy/metabolism/pathology
[MESH]