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Pael-R is accumulated in Lewy bodies of Parkinson's disease

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Abstract

We examined the distribution of Pael-R, a newly identified substrate for Parkin, in Parkinson's disease (PD) and multiple system atrophy (MSA). Pael-R, Parkin, α-synuclein, and ubiquitin accumulated in Lewy bodies (LBs) and neurites. Pael-R was localized in the core of LBs. Parkin and α-synuclein accumulated in the halo, neuronal cell bodies, and processes. These findings potentially suggest the involvement of Pael-R in LB formation, and protection role of Parkin in Pael-R-mediated neurotoxicity in PD. The absence of Pael-R and Parkin in glial cytoplasmic inclusions (GCIs) in MSA implies a distinct pathway involved in the formation of LBs and GCIs. Ann Neurol 2004

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