Cited by 789Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingNeuroinflammation and Neurodegeneration Mechanisms

Minocycline Prevents Nigrostriatal Dopaminergic Neurodegeneration in the MPTP Model of Parkinson’s Disease

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Du, Yansheng, Ma, Zhizhong, Lin, Suizhen, Dodel, Richard C., Gao, Feng, Bales, Kelly R., Triarhou, Lazarose C., Chernet, Eyassu +6 more·2001·Proceedings of the National Academy of Sciences

Abstract

Parkinson's disease is a chronic neurodegenerative disorder characterized by the loss of dopamine neurons in the substantia nigra, decreased striatal dopamine levels, and consequent extrapyramidal motor dysfunction. We now report that minocycline, a semisynthetic tetracycline, recently shown to have neuroprotective effects in animal models of stroke/ischemic injury and Huntington's disease, prevents nigrostriatal dopaminergic neurodegeneration in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of Parkinson's disease. Minocycline treatment also blocked dopamine depletion in the striatum as well as in the nucleus accumbens after MPTP administration. The neuroprotective effect of minocycline is associated with marked reductions in inducible NO synthase (iNOS) and caspase 1 expression. In vitro studies using primary cultures of mesencephalic and cerebellar granule neurons (CGN) and/or glia demonstrate that minocycline inhibits both 1-methyl-4-phenylpyridinium (MPP(+))-mediated iNOS expression and NO-induced neurotoxicity, but MPP(+)-induced neurotoxicity is inhibited only in the presence of glia. Further, minocycline also inhibits NO-induced phosphorylation of p38 mitogen-activated protein kinase (MAPK) in CGN and the p38 MAPK inhibitor, SB203580, blocks NO toxicity of CGN. Our results suggest that minocycline blocks MPTP neurotoxicity in vivo by indirectly inhibiting MPTP/MPP(+)-induced glial iNOS expression and/or directly inhibiting NO-induced neurotoxicity, most likely by inhibiting the phosphorylation of p38 MAPK. Thus, NO appears to play an important role in MPTP neurotoxicity. Neuroprotective tetracyclines may be effective in preventing or slowing the progression of Parkinson's and other neurodegenerative diseases.

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Crossref · 10.1073/pnas.251341998

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Authors
Du, Y., Ma, Z., Lin, S., Dodel, R. C., Gao, F., Bales, K. R., Triarhou, L. C., Chernet, E., Perry, K. W., Nelson, D. L. G., Luecke, S., Phebus, L. A., Bymaster, F. P., & Paul, S. M.
Affiliations
  • Philipps University of Marburg (DE)
  • Departments of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202; Department of Neurology, Philipps-University, Marburg, 35033 Germany; Neuroscience Discovery Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285; and Department of Pathology, Indiana University, Indianapolis, IN 46202
Venue
Proceedings of the National Academy of Sciences
Published
2001-11-27
Volume
98
Issue
25
Pages
14669-14674
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2103738800
Cited by
789
References
40
Citations by year
2026: 6 · 2025: 12 · 2024: 22 · 2023: 17 · 2022: 28 · 2021: 21 · 2020: 23 · 2019: 29 · 2018: 20 · 2017: 29 · 2016: 25 · 2015: 29 · 2014: 23 · 2013: 35 · 2012: 46
FWCI
24.82
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
minocycline, Parkinson's disease, MPTP-induced neurotoxicity, nigrostriatal dopaminergic neurons, neuroprotection, inducible nitric oxide synthase, caspase-1, nitric oxide, p38 MAPK, MPP+, cerebellar granule cells, striatal dopamine depletion, nucleus accumbens
MeSH terms
Animals, Cells, Cultured, Dopamine, Humans, Imidazoles, Male, Mice, Inbred C57BL, Minocycline, Monoamine Oxidase, Nerve Degeneration, Neurons, Nitric Oxide, Phosphorylation, Pyridines, Visual Cortex, Neuroprotective Agents, Nitric Oxide Synthase, Caspase 1, MPTP Poisoning, Parkinsonian Disorders, Mitogen-Activated Protein Kinases, p38 Mitogen-Activated Protein Kinases, Mice, Nitric Oxide Synthase Type II

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