Cited by 43Parkinson's Disease Mechanisms and TreatmentsNeurological diseases and metabolismMetal-Catalyzed Oxygenation Mechanisms

Iron-mediated bioactivation of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in glial cultures

Di Monte, Donato A., Schipper, Hyman M., Hetts, Steven, Langston, J. William·1995·Glia

Abstract

Primary cultures of mouse astrocytes were treated with both the monoamine oxidase (MAO) A inhibitor, clorgyline, and the MAO B inhibitor, deprenyl, prior to the addition of the neurotoxicant 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Production of the 1-methyl-4-phenylpyridinium (MPP+) toxic metabolite was reduced to 11%, but not completely blocked, by MAO inhibition. This residual MPP+ production appeared to be iron-dependent since it was decreased (30 to 50%) by iron chelators, i.e., deferoxamine or phenanthroline, and was enhanced (by approximately 40%) in the presence of ADP-Fe3+. ADP-Fe3+ also enhanced the oxidation of MPTP to MPP+ which occurs in medium without cells. MPP+ formation, however, was significantly slower in plain culture medium than in astrocyte incubations pretreated with MAO inhibitors, suggesting the involvement of cells in these iron-mediated reactions. The data indicate that oxidation via MAO is the primary but not the only pathway of MPTP bioactivation and that transition metals may contribute to the generation of the toxic MPP+ metabolite in biological systems.

Integrity signals

Registry

Crossref · 10.1002/glia.440150213

Cites

19 of 19 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Ferric iron has been shown to participate in the conversion of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine into the toxic metabolite 1-methyl-4-phenylpyridinium ion.

    “Ferric iron has been shown to participate in the conversion of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (a neurotoxin known to induce Parkinson’s disease-like symptoms) into the toxic metabolite 1-methyl-4-phenylpyridinium ion.68”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Di Monte, D. A., Schipper, H. M., Hetts, S., & Langston, J. W.
Affiliations
  • Jewish General Hospital (CA)
  • Parkinson's Institute and Clinical Center (US)
Venue
Glia
Publisher
Wiley
Published
1995-10
Volume
15
Issue
2
Pages
203-206
ISSN
  • 0894-1491 (ISSN-L)
  • 1098-1136
OpenAlex
W2170860545
Cited by
43
References
19
Citations by year
2022: 3 · 2021: 2 · 2020: 2 · 2018: 2 · 2017: 1 · 2015: 2 · 2014: 2 · 2013: 1 · 2012: 1
FWCI
1.20
Type
journal article
Language
en
Open access
closed
Locations
  • Glia (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
  • Physical Sciences › Chemistry › Inorganic Chemistry › Metal-Catalyzed Oxygenation Mechanisms
Keywords
MPTP, MPP+, iron-mediated oxidation, astrocytes, monoamine oxidase inhibition, clorgyline, selegiline, iron chelators, deferoxamine, phenanthroline, neurotoxicity, transition metals, metabolic activation, Parkinson's disease
MeSH terms
Animals, Biotransformation, Cells, Cultured, Iron, Iron Chelating Agents, Monoamine Oxidase Inhibitors, Neuroglia, Dopamine Agents, 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine, 1-Methyl-4-phenylpyridinium, Prosencephalon, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review