Cited by 202Pharmacogenetics and Drug MetabolismAlcohol Consumption and Health EffectsBarrier Structure and Function Studies

Regional distribution of ethanol-inducible cytochrome P450 IIE1 in the rat central nervous system

Hansson, T., Tindberg, N., Ingelman-Sundberg, M., Ko¨hler, C.·1990·Neuroscience

Abstract

A specific form of cytochrome P450, P450 IIE1, active in ethanol oxidation, is known to be induced about 10-fold in rat liver following ethanol treatment. This isozyme of P450 participates effectively in the metabolic activation of precarcinogens, such as N-dimethylnitrosamines, and of solvents such as carbon tetrachloride and benzene. In the present investigation, two different polyclonal antisera against P450 IIE1 were used in order to map the regional distribution of this P450 form in the rat central nervous system. The presence of P450 IIE1 in various brain regions was confirmed by Western blot analysis. The P450 IIE1-immunoreactivity was heterogeneously distributed between brain areas. Neuronal cell bodies and glial cells of presumed astroglial as well as oligodendroglial identity contained immunoreactivity. All fiber tracts harbored P450 IIE1-immunoreactive glial cells as did the ependymal lining of the ventricular wall as well as small and large vessels throughout the brain. P450 IIE1-immunoreactive glial cells were present in all areas of the neocortex, in the olfactory bulb, in the piriform cortex and in several different thalamic nuclei. In the cerebellum, P450 IIE-immunoreactivity was found in all cell layers and was exclusively localized to glial cells and their processes. Staining of blood vessels was prominent in the white matter where P450 IIE1-immunoreactive glial cells were seen to have end-feet on the vessels. A subgroup of pyramidal cells of the frontal cortex showed strong P450 IIE1-immunoreactivity, as did a component of the olfactory nerve which innervates the accessory bulb. In the hippocampal region, the pyramidal cells of all subfields were P450 IIE1-immunoreactive. Some polymorphic cells of the hilus and subfield CA stained intensely with the P450 IIE1 antibodies. A high density of P450 IIE1-immunoreactivity was detected throughout the striatal complex. The immunoreactivity was localized to neuronal cell bodies as well as the neurophil. Fibers of the nigrostriatal system were strongly P450 IIE1-immunoreactive. Mechanical lesions of this pathway showed an accumulation of P450 IIE1-immunoreactivity proximal to the lesion relative to the striatum and a depletion in the reticular part of the substantia nigra, suggesting that the antigen may be transported from the striatum to the substantia nigra. In the brain stem a high density of P450 IIE-immunoreactive neurons was detected in the substantia nigra, the pontine nucleus, lateral superior olive and the nucleus of the trigeminal nerve and facial nucleus. A great number of large- to medium-sized immunoreactive neurons were situated in the central gray and in the reticular formation.(ABSTRACT TRUNCATED AT 400 WORDS)

Integrity signals

Registry

Crossref · 10.1016/0306-4522(90)90154-v

Cites

33 of 33 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?

Cites

Flagged first, then by citations

5 of the 38 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Hansson, T., Tindberg, N., Ingelman-Sundberg, M., & Ko¨hler, C.
Affiliations
  • Karolinska Institutet (SE)
  • AstraZeneca (Sweden) (SE)
Corresponding author
Hansson, T.
Venue
Neuroscience
Publisher
Elsevier BV
Published
1990-01
Volume
34
Issue
2
Pages
451-463
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2042778689
Cited by
202
References
38
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 2 · 2022: 6 · 2021: 2 · 2020: 2 · 2019: 4 · 2018: 4 · 2017: 4 · 2016: 4 · 2015: 2 · 2014: 7 · 2013: 4 · 2012: 5
FWCI
9.47
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
central nervous system, regional distribution, glial cells, astrocytes, oligodendrocytes, hippocampus, striatum, nigrostriatal pathway, neurofilaments, neurofilament light chain, neurofilament heavy chain
MeSH terms
Ethanol, Animals, Brain, Cytochrome P-450 Enzyme System, Enzyme Induction, Immunohistochemistry, Male, Rats, Inbred Strains, Rats

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