期刊
PLOS ONE
卷 6, 期 4, 页码 -出版社
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0019338
关键词
-
资金
- National Institutes of Health (NIH) [AG 11385, AG 18840, AG 022074, NS 044233]
- ELAN Pharmaceuticals
Dementia with Lewy bodies (DLB) and Parkinson's Disease (PD) are common causes of motor and cognitive deficits and are associated with the abnormal accumulation of alpha-synuclein (alpha-syn). This study investigated whether passive immunization with a novel monoclonal alpha-syn antibody (9E4) against the C-terminus (CT) of alpha-syn was able to cross into the CNS and ameliorate the deficits associated with alpha-syn accumulation. In this study we demonstrate that 9E4 was effective at reducing behavioral deficits in the water maze, moreover, immunization with 9E4 reduced the accumulation of calpain-cleaved alpha-syn in axons and synapses and the associated neurodegenerative deficits. In vivo studies demonstrated that 9E4 traffics into the CNS, binds to cells that display alpha-syn accumulation and promotes alpha-syn clearance via the lysosomal pathway. These results suggest that passive immunization with monoclonal antibodies against the CT of alpha-syn may be of therapeutic relevance in patients with PD and DLB.
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