Cited by 579Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingGenomics, phytochemicals, and oxidative stress

Nrf2-mediated neuroprotection in the MPTP mouse model of Parkinson’s disease: Critical role for the astrocyte

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Chen, Pei-Chun, Vargas, Marcelo R., Pani, Amar K., Smeyne, Richard J., Johnson, Delinda A., Kan, Yuet Wai, Johnson, Jeffrey A.·2009·Proceedings of the National Academy of Sciences

Abstract

Oxidative stress has been implicated in the etiology of Parkinson's disease (PD) and in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) animal model of PD. It is known that under conditions of oxidative stress, the transcription factor NF-E2-related factor (Nrf2) binds to antioxidant response element (ARE) to induce antioxidant and phase II detoxification enzymes. To investigate the role of Nrf2 in the process of MPTP-induced toxicity, mice expressing the human placental alkaline phosphatase (hPAP) gene driven by a promoter containing a core ARE sequence (ARE-hPAP) were used. ARE-hPAP mice were injected (30 mg/kg) once per day for 5 days and killed 7 days after the last MPTP injection. In response to this design, ARE-dependent gene expression was decreased in striatum whereas it was increased in substantia nigra. The same MPTP protocol was applied in Nrf2 +/+ and Nrf2 −/− mice; Nrf2 deficiency increases MPTP sensitivity. Furthermore, we evaluated the potential for astrocytic Nrf2 overexpression to protect from MPTP toxicity. Transgenic mice with Nrf2 under control of the astrocyte-specific promoter for the glial fribillary acidic protein (GFAP-Nrf2) on both a Nrf2 +/+ and Nrf2 −/− background were administered MPTP. In the latter case, only the astrocytes expressed Nrf2. Independent of background, MPTP-mediated toxicity was abolished in GFAP-Nrf2 mice. These striking results indicate that Nrf2 expression restricted to astrocytes is sufficient to protect against MPTP and astrocytic modulation of the Nrf2-ARE pathway is a promising target for therapeutics aimed at reducing or preventing neuronal death in PD.

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Authors
Chen, P.-C., Vargas, M. R., Pani, A. K., Smeyne, R. J., Johnson, D. A., Kan, Y. W., & Johnson, J. A.
Affiliations
  • University of Wisconsin–Madison (US)
  • St. Jude Children's Research Hospital (US)
  • University of California, San Francisco (US)
Venue
Proceedings of the National Academy of Sciences
Published
2009-02-24
Volume
106
Issue
8
Pages
2933-2938
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2055285423
Cited by
579
References
52
Citations by year
2026: 13 · 2025: 12 · 2024: 18 · 2023: 27 · 2022: 25 · 2021: 34 · 2020: 47 · 2019: 52 · 2018: 32 · 2017: 43 · 2016: 37 · 2015: 36 · 2014: 36 · 2013: 32 · 2012: 42
FWCI
28.70
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (NS39006, R01NS039006)
  • National Institute of Environmental Health Sciences (ES10042, R01ES010042)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics, phytochemicals, and oxidative stress
Keywords
Nrf2, Parkinson's disease, MPTP-induced neurotoxicity, astrocytes, oxidative stress, antioxidant response element, neuroprotection, GFAP promoter, Nrf2 knockout mice, substantia nigra, striatum, neuronal cell death, phase II enzymes
MeSH terms
Alkaline Phosphatase, Animals, Astrocytes, Base Sequence, Corpus Striatum, Disease Models, Animal, Glial Fibrillary Acidic Protein, Immunohistochemistry, Mice, Transgenic, Parkinson Disease, Substantia Nigra, 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine, DNA Primers, MPTP Poisoning, NF-E2-Related Factor 2, Mice

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