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| Content Provider | PubMed Central |
|---|---|
| Author | Hossein, Aleyasin Rousseaux, Maxime W. C. Marcogliese, Paul C. Hewitt, Sarah J. Isabella, Irrcher Joselin, Alvin P. Parsanejad, Md Kim, Raymond H. Patrizia, Rizzu Callaghan, Steve M. Slack, Ruth S. Mak, Tak W. Park, David S. |
| Abstract | Loss-of-function DJ-1 (PARK7) mutations have been linked with a familial form of early onset Parkinson disease. Numerous studies have supported the role of DJ-1 in neuronal survival and function. Our initial studies using DJ-1-deficient neurons indicated that DJ-1 specifically protects the neurons against the damage induced by oxidative injury in multiple neuronal types and degenerative experimental paradigms, both in vitro and in vivo. However, the manner by which oxidative stress-induced death is ameliorated by DJ-1 is not completely clear. We now present data that show the involvement of DJ-1 in modulation of AKT, a major neuronal prosurvival pathway induced upon oxidative stress. We provide evidence that DJ-1 promotes AKT phosphorylation in response to oxidative stress induced by H2O2 in vitro and in vivo following 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) treatment. Moreover, we show that DJ-1 is necessary for normal AKT-mediated protective effects, which can be bypassed by expression of a constitutively active form of AKT. Taken together, these data suggest that DJ-1 is crucial for full activation of AKT upon oxidative injury, which serves as one explanation for the protective effects of DJ-1. |
| Related Links | http://dx.doi.org/10.1073/pnas.0914876107 |
| Ending Page | 3191 |
| Page Count | 6 |
| Starting Page | 3186 |
| File Format | |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 7 |
| Volume Number | 107 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2010-02-16 |
| Access Restriction | Open |
| Rights Holder | National Academy of Sciences |
| Subject Keyword | General Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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