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http://purl.uniprot.org/citations/19021916http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/19021916http://www.w3.org/2000/01/rdf-schema#comment"α-synuclein (α-syn) is a main component of Lewy bodies (LB) that occur in many neurodegenerative diseases, including Parkinson's disease (PD), dementia with LB (DLB) and multi-system atrophy. α-syn mutations or amplifications are responsible for a subset of autosomal dominant familial PD cases, and overexpression causes neurodegeneration and motor disturbances in animals. To investigate mechanisms for α-syn accumulation and toxicity, we studied a mouse model of lysosomal enzyme cathepsin D (CD) deficiency, and found extensive accumulation of endogenous α-syn in neurons without overabundance of α-syn mRNA. In addition to impaired macroautophagy, CD deficiency reduced proteasome activity, suggesting an essential role for lysosomal CD function in regulating multiple proteolytic pathways that are important for α-syn metabolism. Conversely, CD overexpression reduces α-syn aggregation and is neuroprotective against α-syn overexpression-induced cell death in vitro. In a C. elegans model, CD deficiency exacerbates α-syn accumulation while its overexpression is protective against α-syn-induced dopaminergic neurodegeneration. Mutated CD with diminished enzymatic activity or overexpression of cathepsins B (CB) or L (CL) is not protective in the worm model, indicating a unique requirement for enzymatically active CD. Our data identify a conserved CD function in α-syn degradation and identify CD as a novel target for LB disease therapeutics."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.org/dc/terms/identifier"doi:10.1186/1756-6606-1-17"xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Liang Q."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Lu Y."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Peng L."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Zhang J."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Zhou Y."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Iwatsubo T."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Wilson S."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Uchiyama Y."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Schneider L."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Roth K.A."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Qiao L."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Parks R."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Caldwell G.A."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Caldwell K.A."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Standaert D.G."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Hamamichi S."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Crimmins S."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Yacoubian T.A."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Crabtree D."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Shacka J.J."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Walls K.C."xsd:string
http://purl.uniprot.org/citations/19021916http://purl.uniprot.org/core/author"Xie Z.L."xsd:string