RGD Reference Report - Hsp70 gene transfer by adeno-associated virus inhibits MPTP-induced nigrostriatal degeneration in the mouse model of Parkinson disease. - Rat Genome Database

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Hsp70 gene transfer by adeno-associated virus inhibits MPTP-induced nigrostriatal degeneration in the mouse model of Parkinson disease.

Authors: Dong, Z  Wolfer, DP  Lipp, HP  Bueler, H 
Citation: Dong Z, etal., Mol Ther. 2005 Jan;11(1):80-8.
RGD ID: 5147599
Pubmed: PMID:15585408   (View Abstract at PubMed)
DOI: DOI:10.1016/j.ymthe.2004.09.007   (Journal Full-text)

Mitochondrial dysfunction and oxidative stress have been implicated in Parkinson disease (PD). In addition, genetic evidence points to an important role of protein misfolding, aggregation, and failure in the proteasomal degradation of specific neuronal proteins in the pathogenesis of PD. The chaperone heat-shock protein 70 (Hsp70) reduces protein misfolding and aggregation and protects cells against a variety of adverse conditions, including oxidative stress. Moreover, Hsp70 exerts antiapoptotic activity by blocking the function of several key proapoptotic factors. Recently, Hsp70 was shown to inhibit alpha-synuclein toxicity in a Drosophila model of inherited PD. Here we tested the potential of Hsp70 (approved gene symbol HSPA1A) for gene therapy in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of idiopathic PD. We show that Hsp70 gene transfer to dopamine neurons by a recombinant adeno-associated virus significantly protects the mouse dopaminergic system against MPTP-induced dopamine neuron loss and the associated decline in striatal dopamine levels and tyrosine hydroxylase-positive fibers. Hsp70 reduced MPTP-induced apoptosis in the substantia nigra, and unilateral protection of the dopaminergic system by Hsp70 was associated with increased amphetamine-induced turning toward the uninjected side. Collectively, these results suggest that increasing chaperone activity may be beneficial for the treatment of idiopathic PD.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Parkinsonism  IMP 5147599 RGD 
Parkinsonism  ISOHSPA1A (Homo sapiens)5147599; 5147599 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Hspa1a  (heat shock protein family A (Hsp70) member 1A)

Genes (Mus musculus)
Hspa1a  (heat shock protein 1A)

Genes (Homo sapiens)
HSPA1A  (heat shock protein family A (Hsp70) member 1A)


Additional Information