Cited by 53Parkinson's Disease Mechanisms and TreatmentsNerve injury and regenerationNuclear Receptors and Signaling

Exercise does not protect against MPTP-induced neurotoxicity in BDNF happloinsufficent mice

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Gerecke, Kim M., Jiao, Yun, Pagala, Viswajeeth, Smeyne, Richard J.·2012·PLoS ONE

Abstract

Exercise has been demonstrated to potently protect substantia nigra pars compacta (SN) dopaminergic neurons from 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurotoxicity. One mechanism proposed to account for this neuroprotection is the upregulation of neurotrophic factors. Several neurotrophic factors, including Brain Derived Neurotrophic Factor (BDNF), have been shown to upregulate in response to exercise. In order to determine if exercise-induced neuroprotection is dependent upon BDNF, we compared the neuroprotective effects of voluntary exercise in mice heterozygous for the BDNF gene (BDNF+/-) with strain-matched wild-type (WT) mice. Stereological estimates of SNpc DA neurons from WT mice allowed 90 days exercise via unrestricted running demonstrated complete protection against the MPTP-induced neurotoxicity. However, BDNF+/- mice allowed 90 days of unrestricted exercise were not protected from MPTP-induced SNpc DA neuron loss. Proteomic analysis comparing SN and striatum from 90 day exercised WT and BDNF+/- mice showed differential expression of proteins related to energy regulation, intracellular signaling and trafficking. These results suggest that a full genetic complement of BDNF is critical for the exercise-induced neuroprotection of SNpc DA neurons.

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Authors
Gerecke, K. M., Jiao, Y., Pagala, V., & Smeyne, R. J.
Affiliations
  • Rhodes College (US)
  • St. Jude Children's Research Hospital (US)
Corresponding author
Gerecke, Kim M.
Venue
PLoS ONE
Published
2012-08-17
Volume
7
Issue
8
Pages
e43250
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2017014342
Cited by
53
References
139
Citations by year
2026: 2 · 2025: 3 · 2024: 1 · 2022: 3 · 2021: 1 · 2020: 4 · 2019: 6 · 2018: 7 · 2017: 5 · 2016: 4 · 2015: 7 · 2014: 6 · 2013: 4
FWCI
3.55
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • American Lebanese Syrian Associated Charities
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (R01NS070825, R01NS039006, NS039006)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
physical activity, MPTP-induced neurotoxicity, substantia nigra pars compacta, dopaminergic neurons, neuroprotection, neurotrophic factors, voluntary running, striatum, protein expression, Parkinson's disease model
MeSH terms
Animals, Electrophoresis, Agar Gel, Genotype, Immunohistochemistry, Physical Conditioning, Animal, Substantia Nigra, DNA Primers, Brain-Derived Neurotrophic Factor, MPTP Poisoning, Proteomics, Mice, Tandem Mass Spectrometry, Haploinsufficiency, Dopaminergic Neurons

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