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Journal ArticleDOI

Mutations in the DJ-1 Gene Associated with Autosomal Recessive Early-Onset Parkinsonism

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TLDR
It is shown that DJ-1 mutations are associated with PARK7, a monogenic form of human parkinsonism, and these findings indicate that loss ofDJ-1 function leads to neurodegeneration.
Abstract
The DJ-1 gene encodes a ubiquitous, highly conserved protein. Here, we show that DJ-1 mutations are associated with PARK7, a monogenic form of human parkinsonism. The function of the DJ-1 protein remains unknown, but evidence suggests its involvement in the oxidative stress response. Our findings indicate that loss of DJ-1 function leads to neurodegeneration. Elucidating the physiological role of DJ-1 protein may promote understanding of the mechanisms of brain neuronal maintenance and pathogenesis of Parkinson's disease.

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Dopamine oxidation mediates mitochondrial and lysosomal dysfunction in Parkinson’s disease

TL;DR: Dopaminergic neurons derived from patients with idiopathic and familial PD are studied to identify a time-dependent pathological cascade beginning with mitochondrial oxidant stress leading to oxidized dopamine accumulation and ultimately resulting in reduced glucocerebrosidase enzymatic activity, lysosomal dysfunction, and α-synuclein accumulation.
Journal ArticleDOI

DJ-1, a novel regulator of the tumor suppressor PTEN.

TL;DR: DJ-1 expression was increased compared to paired nonneoplastic lung tissue, and correlated positively with relapse incidence, and is thus a key negative regulator of PTEN that may be a useful prognostic marker for cancer.
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High-Resolution Whole-Genome Association Study of Parkinson Disease

TL;DR: Independent replication across populations will clarify the role of the genomic loci tagged by these SNPs in conferring PD susceptibility and test a priori biological and genetic hypotheses regarding susceptibility to PD.
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Mitochondrial dysfunction in Parkinson's disease: molecular mechanisms and pathophysiological consequences

TL;DR: The role of mitochondria in the etiopathogenesis of Parkinson's disease has been investigated in this paper, based on the observation that mitochondrial toxins can cause parkinsonism in humans and animal models.
References
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DJ-1, a novel oncogene which transforms mouse NIH3T3 cells in cooperation with ras.

TL;DR: DJ-1 showed a cooperative transforming activity with H-Ras, more than 3 times as strong as the activity of ras/myc combination and is suggested to be a novel mitogen-dependent oncogene product involved in a Ras-related signal transduction pathway.
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