PMID: 7535890Jan 1, 1995Paper

Neuroglial responses to the dopaminergic neurotoxicant 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine in mouse striatum

Neurotoxicology and Teratology
J W FrancisT H Oh

Abstract

We have studied the reactive responses of both astrocytes and microglia to dopaminergic denervation of the striatum by MPTP. Following MPTP treatment, increased GFAP immunoreactivity reached a peak at 2 days and persisted for at least 6 weeks. Immunoreactivity to vimentin was also markedly increased in astrocytes 48 h after MPTP treatment. Striatal laminin immunoreactivity, however, appeared to be unaffected by drug treatment. GFAP protein levels increased to 196% and 321% of control 24 and 48 hours after MPTP treatment, respectively. Concomitantly, GFAP mRNA levels increased to 560% and 1620% of control, respectively. These reactive changes in striatal astrocytes in response to MPTP treatment were also accompanied by a reactive microglial response as evidenced by increased immunohistochemical visualization of striatal microglia using antibodies to Mac-1. Our results and those reported previously by O'Callaghan et al., strongly suggest that MPTP-induced reactive gliosis in mouse striatum is associated with reactive microglia, albeit without increased interleukin-1 beta.

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Citations

Nov 28, 2007·Journal of Neuroimmune Pharmacology : the Official Journal of the Society on NeuroImmune Pharmacology·Krishnan Sriram, James P O'Callaghan
Feb 5, 2013·Journal of Neuroimmune Pharmacology : the Official Journal of the Society on NeuroImmune Pharmacology·Fabio Blandini
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