In:
Cell Transplantation, SAGE Publications, Vol. 22, No. 9 ( 2013-09), p. 1529-1539
Abstract:
Degeneration of midbrain dopamine neurons causes the striatal dopamine deficiency responsible for the hallmark motor symptoms of Parkinson's disease (PD). Intraparenchymal delivery of neurotrophic factors, such as glial cell line-derived neurotrophic factor (GDNF), is a possible future therapeutic approach. In animal PD models, GDNF can both ameliorate neurodegeneration and promote recovery of the dopamine system following a toxic insult. However, clinical studies have generated mixed results, and GDNF has not been efficacious in genetic animal models based on α-synuclein overexpression. We have tested the response to GDNF in a genetic mouse PD model with progressive degeneration of dopamine neurons caused by mitochondrial impairment. We find that GDNF, delivered to the striatum by either an adeno-associated virus or via miniosmotic pumps, partially alleviates the progressive motor symptoms without modifying the rate of neurodegeneration. These behavioral changes are accompanied by increased levels of dopamine in the midbrain, but not in striatum. At high levels, GDNF may instead reduce striatal dopamine levels. These results demonstrate the therapeutic potential of GDNF in a progressively impaired dopamine system.
Type of Medium:
Online Resource
ISSN:
0963-6897
,
1555-3892
DOI:
10.3727/096368912X657693
Language:
English
Publisher:
SAGE Publications
Publication Date:
2013
detail.hit.zdb_id:
2020466-8
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