Cutting edge: IL-13Rα1 expression in dopaminergic neurons contributes to their oxidative stress-mediated loss following chronic peripheral treatment with lipopolysaccharide.
Cutting edge: IL-13Rα1 expression in dopaminergic neurons contributes to their oxidative stress-mediated loss following chronic peripheral treatment with lipopolysaccharide.
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DOI:
10.4049/jimmunol.1102150
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发表时间:
2012-12-15
期刊:
影响因子:
--
通讯作者:
Conti B
中科院分区:
文献类型:
--
作者:
Morrison BE;Marcondes MC;Nomura DK;Sanchez-Alavez M;Sanchez-Gonzalez A;Saar I;Kim KS;Bartfai T;Maher P;Sugama S;Conti B
Inflammation and its mediators, including cytokines and reactive oxigen species, are believed to contribute to neurodegeneration. In the mouse brain, we found that the interleukin 13 receptor alpha 1 chain (IL-13Rα1) was expressed in the dopaminergic (DA) neurons of the substantia nigra pars compacta which are preferentially lost in human Parkinson’s disease (PD). Mice deficient for Il13ra1 exhibited resistance to loss of DA neurons in a model of chronic peripheral inflammation using bacterial lipopolysaccharide. Interleukin-13, as well as interleukin-4, potentiated the cytotoxic effects of t-butyl hydroperoxide and hydrogen peroxide on mouse dopaminergic MN9D cells. Collectively, our data indicate that expression of IL-13Rα1 on DA neurons can increase their susceptibility to oxidative stress-mediated damage thereby contributing to their preferential loss. In humans, Il13ra1 lies on the X chromosome within the PARK12 locus of susceptibility to PD suggesting that IL-13Rα1 may have a role in the pathogenesis of this neurodegenerative disease.
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