Oxidative neurodegeneration is prevented by UCP0045037, an allosteric modulator for the reduced form of DJ-1, a wild-type of familial Parkinson's disease-linked PARK7

Koichiro Yamane, Yoshihisa Kitamura, Takashi Yanagida, Kazuyuki Takata, Daijiro Yanagisawa, Takashi Taniguchi, Takahiro Taira, Hiroyoshi Ariga
International Journal of Molecular Sciences 2009 November 5, 10 (11): 4789-804
Although a loss-of-function mutation has been identified in familial Parkinson's disease PARK7, the wild-type of DJ-1 is known to act as an oxidative stress sensor in neuronal cells. Recently, we identified UCP0045037 as a compound that bound to the reduced form of DJ-1 by in silico virtual screening. In this study, we determined the neuroprotective effects of UCP0045037 against focal cerebral ischemia-induced neurodegeneration in rats. Hydrogen peroxide-induced cell death was significantly inhibited by UCP0045037 in both rat mesencephalic dopaminergic neurons and human normal SH-SY5Y cells. In contrast, DJ-1-knockdown SH-SY5Y cells lost the protective activity of UCP0045037. These results suggest that UCP0045037 interacts with endogenous DJ-1 and produces a neuroprotective response.

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