Mice lacking alpha-synuclein are resistant to mitochondrial toxins Academic Article uri icon


MeSH Major

  • Mitochondria
  • Neurotoxins
  • Parkinsonian Disorders
  • alpha-Synuclein


  • Abnormalities in the function of alpha-synuclein are implicated in the pathogenesis of Parkinson's disease (PD). We found that alpha-synuclein-deficient mice are resistant to MPTP-induced degeneration of dopaminergic neurons. There was dose-dependent protection against loss of both dopamine in the striatum and dopamine transporter (DAT) immunoreactive neurons in the substantia nigra. These effects were not due to alterations in MPTP processing. We found that alpha-synuclein-deficient mice are also resistant to both malonate and 3-nitropropionic acid (3-NP) neurotoxicity. There was reduced generation of reactive oxygen species in alpha-synuclein-deficient mice following administration of 3-NP. These findings implicate alpha-synuclein as a modulator of oxidative damage, which has been implicated in neuronal death produced by MPTP and other mitochondrial toxins.

publication date

  • March 2006



  • Academic Article



  • eng

Digital Object Identifier (DOI)

  • 10.1016/j.nbd.2005.08.018

PubMed ID

  • 16298531

Additional Document Info

start page

  • 541

end page

  • 8


  • 21


  • 3