La maladie de Parkinson au Canada (serveur d'exploration)

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Selective neuroprotective effects of the S18Y polymorphic variant of UCH-L1 in the dopaminergic system

Identifieur interne : 000219 ( PascalFrancis/Corpus ); précédent : 000218; suivant : 000220

Selective neuroprotective effects of the S18Y polymorphic variant of UCH-L1 in the dopaminergic system

Auteurs : Maria Xilouri ; Elli Kyratzi ; Pothitos M. Pitychoutis ; Zoi Papadopoulou-Daifoti ; Celine Perier ; Miquel Vila ; Matina Maniati ; Ayse Ulusoy ; Deniz Kirik ; David S. Park ; Keiji Wada ; Leonidas Stefanis

Source :

RBID : Pascal:12-0122767

Descripteurs français

English descriptors

Abstract

Genetic studies have implicated the neuronal ubiquitin C-terminal hydrolase (UCH) protein UCH-L1 in Parkinson's disease (PD) pathogenesis. Moreover, the function of UCH-L1 may be lost in the brains of PD and Alzheimer's disease patients. We have previously reported that the UCH-L1 polymorphic variant S18Y, potentially protective against PD in population studies, demonstrates specific antioxidant functions in cell culture. Albeit genetic, biochemical and neuropathological data support an association between UCH-L1, PD, synaptic degeneration and oxidative stress, the relationship between the dopaminergic system and UCH-L1 status remains obscure. In the current study, we have examined the dopaminergic system of mice lacking endogenous UCH-L1 protein (gracile axonal dystrophy mice). Our findings show that the lack of wild-type (WT) UCH-L1 does not influence to any significant degree the dopaminergic system at baseline or following injections of the neurotoxin methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Furthermore, using a novel intrastriatal adenoviral injection protocol, we have found that mouse nigral neurons retrogradely transduced with S18Y UCH-L1, but not the WT protein, are significantly protected against MPTP toxicity. Overall, these data provide evidence for an antioxidant and neuroprotective effect of the S18Y variant of UCH-L1, but not of the WT protein, in the dopaminergic system, and may have implications for the pathogenesis of PD or related neurodegenerative conditions, in which oxidative stress might play a role.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A08 01  1  ENG  @1 Selective neuroprotective effects of the S18Y polymorphic variant of UCH-L1 in the dopaminergic system
A11 01  1    @1 XILOURI (Maria)
A11 02  1    @1 KYRATZI (Elli)
A11 03  1    @1 PITYCHOUTIS (Pothitos M.)
A11 04  1    @1 PAPADOPOULOU-DAIFOTI (Zoi)
A11 05  1    @1 PERIER (Celine)
A11 06  1    @1 VILA (Miquel)
A11 07  1    @1 MANIATI (Matina)
A11 08  1    @1 ULUSOY (Ayse)
A11 09  1    @1 KIRIK (Deniz)
A11 10  1    @1 PARK (David S.)
A11 11  1    @1 WADA (Keiji)
A11 12  1    @1 STEFANIS (Leonidas)
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A14 03      @1 Neurodegenerative Diseases Research Group, Vall d'Hebron Research Institute-Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED) @2 Barcelona 08035 @3 ESP @Z 5 aut. @Z 6 aut.
A14 04      @1 Catalan Institution for Research and Advanced Studies (ICREA) @2 08010 Barcelona @3 ESP @Z 6 aut.
A14 05      @1 Department of Biochemistry and Molecular Biology, Autonomous University of Barcelona @2 08193 Bellaterra, Barcelona @3 ESP @Z 6 aut.
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C01 01    ENG  @0 Genetic studies have implicated the neuronal ubiquitin C-terminal hydrolase (UCH) protein UCH-L1 in Parkinson's disease (PD) pathogenesis. Moreover, the function of UCH-L1 may be lost in the brains of PD and Alzheimer's disease patients. We have previously reported that the UCH-L1 polymorphic variant S18Y, potentially protective against PD in population studies, demonstrates specific antioxidant functions in cell culture. Albeit genetic, biochemical and neuropathological data support an association between UCH-L1, PD, synaptic degeneration and oxidative stress, the relationship between the dopaminergic system and UCH-L1 status remains obscure. In the current study, we have examined the dopaminergic system of mice lacking endogenous UCH-L1 protein (gracile axonal dystrophy mice). Our findings show that the lack of wild-type (WT) UCH-L1 does not influence to any significant degree the dopaminergic system at baseline or following injections of the neurotoxin methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Furthermore, using a novel intrastriatal adenoviral injection protocol, we have found that mouse nigral neurons retrogradely transduced with S18Y UCH-L1, but not the WT protein, are significantly protected against MPTP toxicity. Overall, these data provide evidence for an antioxidant and neuroprotective effect of the S18Y variant of UCH-L1, but not of the WT protein, in the dopaminergic system, and may have implications for the pathogenesis of PD or related neurodegenerative conditions, in which oxidative stress might play a role.
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Format Inist (serveur)

NO : PASCAL 12-0122767 INIST
ET : Selective neuroprotective effects of the S18Y polymorphic variant of UCH-L1 in the dopaminergic system
AU : XILOURI (Maria); KYRATZI (Elli); PITYCHOUTIS (Pothitos M.); PAPADOPOULOU-DAIFOTI (Zoi); PERIER (Celine); VILA (Miquel); MANIATI (Matina); ULUSOY (Ayse); KIRIK (Deniz); PARK (David S.); WADA (Keiji); STEFANIS (Leonidas)
AF : Division of Basic Neurosciences, Biomedical Research Foundation of the Academy of Athens/Athens/Grèce (1 aut., 2 aut., 7 aut., 12 aut.); Department of Pharmacology, Medical School, University of Athens/Athens/Grèce (3 aut., 4 aut.); Neurodegenerative Diseases Research Group, Vall d'Hebron Research Institute-Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED)/Barcelona 08035/Espagne (5 aut., 6 aut.); Catalan Institution for Research and Advanced Studies (ICREA)/08010 Barcelona/Espagne (6 aut.); Department of Biochemistry and Molecular Biology, Autonomous University of Barcelona/08193 Bellaterra, Barcelona/Espagne (6 aut.); Brain Repair and Imaging in Neural Systems, Department of Experimental Medical Science, Lund University/Lund/Suède (8 aut., 9 aut.); Neuroscience Lab, University of Ottawa/Ottawa, ON/Canada (10 aut.); Department of Degenerative Neurological Diseases, National Institute of Neuroscience, National Center of Neurology and Psychiatry/Tokyo 187-8502/Japon (11 aut.); Second Department of Neurology, University of Athens Medical School/Athens/Grèce (12 aut.)
DT : Publication en série; Niveau analytique
SO : Human molecular genetics : (Print); ISSN 0964-6906; Royaume-Uni; Da. 2012; Vol. 21; No. 4; Pp. 874-889; Bibl. 66 ref.
LA : Anglais
EA : Genetic studies have implicated the neuronal ubiquitin C-terminal hydrolase (UCH) protein UCH-L1 in Parkinson's disease (PD) pathogenesis. Moreover, the function of UCH-L1 may be lost in the brains of PD and Alzheimer's disease patients. We have previously reported that the UCH-L1 polymorphic variant S18Y, potentially protective against PD in population studies, demonstrates specific antioxidant functions in cell culture. Albeit genetic, biochemical and neuropathological data support an association between UCH-L1, PD, synaptic degeneration and oxidative stress, the relationship between the dopaminergic system and UCH-L1 status remains obscure. In the current study, we have examined the dopaminergic system of mice lacking endogenous UCH-L1 protein (gracile axonal dystrophy mice). Our findings show that the lack of wild-type (WT) UCH-L1 does not influence to any significant degree the dopaminergic system at baseline or following injections of the neurotoxin methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Furthermore, using a novel intrastriatal adenoviral injection protocol, we have found that mouse nigral neurons retrogradely transduced with S18Y UCH-L1, but not the WT protein, are significantly protected against MPTP toxicity. Overall, these data provide evidence for an antioxidant and neuroprotective effect of the S18Y variant of UCH-L1, but not of the WT protein, in the dopaminergic system, and may have implications for the pathogenesis of PD or related neurodegenerative conditions, in which oxidative stress might play a role.
CC : 002A04; 002A07
FD : Neuroprotection; Polymorphisme; Variant; Variabilité génétique; Génotype; Génétique; Ubiquitin carboxy-terminal hydrolase L1
ED : Neuroprotection; Polymorphism; Variant; Genetic variability; Genotype; Genetics
SD : Neuroprotección; Polimorfismo; Variante; Variabilidad genética; Genotipo; Genética
LO : INIST-22540.354000508403300130
ID : 12-0122767

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Pascal:12-0122767

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<div type="abstract" xml:lang="en">Genetic studies have implicated the neuronal ubiquitin C-terminal hydrolase (UCH) protein UCH-L1 in Parkinson's disease (PD) pathogenesis. Moreover, the function of UCH-L1 may be lost in the brains of PD and Alzheimer's disease patients. We have previously reported that the UCH-L1 polymorphic variant S18Y, potentially protective against PD in population studies, demonstrates specific antioxidant functions in cell culture. Albeit genetic, biochemical and neuropathological data support an association between UCH-L1, PD, synaptic degeneration and oxidative stress, the relationship between the dopaminergic system and UCH-L1 status remains obscure. In the current study, we have examined the dopaminergic system of mice lacking endogenous UCH-L1 protein (gracile axonal dystrophy mice). Our findings show that the lack of wild-type (WT) UCH-L1 does not influence to any significant degree the dopaminergic system at baseline or following injections of the neurotoxin methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Furthermore, using a novel intrastriatal adenoviral injection protocol, we have found that mouse nigral neurons retrogradely transduced with S18Y UCH-L1, but not the WT protein, are significantly protected against MPTP toxicity. Overall, these data provide evidence for an antioxidant and neuroprotective effect of the S18Y variant of UCH-L1, but not of the WT protein, in the dopaminergic system, and may have implications for the pathogenesis of PD or related neurodegenerative conditions, in which oxidative stress might play a role.</div>
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<AF>Division of Basic Neurosciences, Biomedical Research Foundation of the Academy of Athens/Athens/Grèce (1 aut., 2 aut., 7 aut., 12 aut.); Department of Pharmacology, Medical School, University of Athens/Athens/Grèce (3 aut., 4 aut.); Neurodegenerative Diseases Research Group, Vall d'Hebron Research Institute-Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED)/Barcelona 08035/Espagne (5 aut., 6 aut.); Catalan Institution for Research and Advanced Studies (ICREA)/08010 Barcelona/Espagne (6 aut.); Department of Biochemistry and Molecular Biology, Autonomous University of Barcelona/08193 Bellaterra, Barcelona/Espagne (6 aut.); Brain Repair and Imaging in Neural Systems, Department of Experimental Medical Science, Lund University/Lund/Suède (8 aut., 9 aut.); Neuroscience Lab, University of Ottawa/Ottawa, ON/Canada (10 aut.); Department of Degenerative Neurological Diseases, National Institute of Neuroscience, National Center of Neurology and Psychiatry/Tokyo 187-8502/Japon (11 aut.); Second Department of Neurology, University of Athens Medical School/Athens/Grèce (12 aut.)</AF>
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