Cited by 189Parkinson's Disease Mechanisms and TreatmentsNeuroinflammation and Neurodegeneration MechanismsNuclear Receptors and Signaling

Deleterious Effects of Minocycline in Animal Models of Parkinson’s Disease and Huntington’s Disease

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Diguet, Elsa, Fernagut, Pierre‐Olivier, Wei, Xing, Du, Yansheng, Rouland, Richard, Gross, Christian, Bezard, Erwan, Tison, François·2004·European Journal of Neuroscience

Abstract

Minocycline has been shown to exert anti-inflammatory effects underlying its putative neuroprotective properties in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of Parkinson's disease and in the R6/2 mouse model of Huntington's disease (HD). However, contradictory results have recently been reported. We report deleterious effects of minocycline in two phenotypic (toxic) models of Parkinson's disease and HD in monkey and mouse. Of seven MPTP-intoxicated female cynomolgus monkeys (0.2 mg/kg, i.v. until day 15), three received minocycline (200 mg b.i.d.). While placebo-MPTP-treated animals displayed mild parkinsonism at day 15, the minocycline/MPTP-treated animals tended to be more affected (P = 0.057) and showed a greater loss of putaminal dopaminergic nerve endings (P < 0.0001). In the 3-nitropropionic acid (3-NP) mouse model of HD, minocycline (45 mg/kg i.p.) was administered 30 min before each i.p. injection of 3-NP (b.i.d., cumulated dose, 360 mg/kg in 5 days). Mice receiving minocycline exhibited a worsening of the mean motor score with a slower recovery slope, more impaired general activity and significantly deteriorated performances on the rotarod, pole test and beam-traversing tasks. The histopathological outcome demonstrated that minocycline-treated mice presented significantly more severe neuronal cell loss in the dorsal striatum. The effect of minocycline vs. 3-NP was also investigated on hippocampal and cortical cell cultures. minocycline blocked 3-NP-induced neurotoxicity at certain doses (1 mm cortical neurons) but not at higher doses (10 mm). Thus, minocycline may have variable and even deleterious effects in different species and models according to the mode of administration and dose.

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Authors
Diguet, E., Fernagut, P., Wei, X., Du, Y., Rouland, R., Gross, C., Bezard, E., & Tison, F.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Indiana University School of Medicine (US)
Corresponding author
Tison, François
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2004-06
Volume
19
Issue
12
Pages
3266-3276
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W1954166865
Cited by
189
References
67
Citations by year
2026: 2 · 2025: 5 · 2024: 3 · 2023: 2 · 2022: 6 · 2021: 18 · 2020: 8 · 2019: 9 · 2018: 7 · 2017: 5 · 2016: 7 · 2015: 7 · 2014: 5 · 2013: 12 · 2012: 14
FWCI
10.06
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Association France Parkinson
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
minocycline, Parkinson's disease, Huntington's disease, MPTP-induced neurotoxicity, 3-nitropropionic acid, neuroprotection, neurotoxicity, parkinsonism, dopaminergic neuron loss, dorsal striatum, neuronal loss, hippocampal neurons, cortical neurons, dose-dependent effects, species differences, anti-inflammatory activity
MeSH terms
Animals, Cells, Cultured, Convulsants, Corpus Striatum, Disease Models, Animal, Female, Huntington Disease, Immunohistochemistry, Macaca fascicularis, Male, Minocycline, Nerve Degeneration, Neurons, Nitro Compounds, Propionates, Neuroprotective Agents, Parkinsonian Disorders, Mice

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