MPTP-induced increase in c-Fos- and c-Jun-like immunoreactivity in the monkey cerebellum.

Daniela Necchi, C. Soldani, F. Ronchetti, G. Bernocchi, E. Scherini

Research output: Contribution to journalArticle

Abstract

The transcription factors c-Fos and c-Jun have been described to be overexpressed following many pathological stimuli, but whether they are required for neurodegeneration or neuroprotection is still open. In the present report, we analyzed the role of c-Fos and c-Jun proteins in Purkinje cell degeneration caused by the neurotoxin MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) in the monkey cerebellum, and determined the neuroprotective effect of the antioxidant drug a-dihydroergocryptine (DHEC), whose prior and simultaneous administration reduced the MPTP-induced neuronal loss in the substantia nigra. Immunocytochemistry for c-Fos- and c-Jun-like proteins showed persistent increased staining in Purkinje cells of MPTP-treated monkeys. The staining was greatly reduced in animals receiving DHEC. Similar results were observed in white matter glial cells after immunoreaction for c-Fos. The results suggest that, at least as far as the cerebellum is concerned, the increase in c-Fos and c-Jun expression correlate with cell damage, rather than with preservation.

Original languageEnglish
Pages (from-to)385-392
Number of pages8
JournalEuropean journal of histochemistry : EJH
Volume48
Issue number4
Publication statusPublished - Oct 2004

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ASJC Scopus subject areas

  • Animal Science and Zoology
  • Cell Biology
  • Developmental Biology
  • Anatomy

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