Cited by 166Neuroinflammation and Neurodegeneration MechanismsNeuroscience and Neuropharmacology ResearchPain Mechanisms and Treatments

Electrophysiological properties of microglial cells in normal and pathologic rat brain slices

Boucsein, Clemens, Kettenmann, Helmut, Nolte, Christiane·2000·European Journal of Neuroscience

Abstract

UNLABELLED: Microglial cells serve as pathologic sensors of the brain. They are highly abundant in all regions of the central nervous system (CNS) and are characterized by a ramified morphology within the normal tissue. In the present study, we have developed a procedure to study the membrane properties of identified, in situ microglia in acutely isolated brain slices from rat cortex, striatum and facial nucleus. Unlike the well characterized cultured microglial cells, ramified microglia of the slice are characterized by little, if any, voltage-gated membrane currents and a very low membrane potential. They are thus distinct from neurons, other glial cells and nonbrain macrophages. To study the consequences of microglial activation on the membrane channel pattern, we compared cells in the normal facial nucleus and at defined times after facial nerve axotomy. Within 12 h of axotomy, microglial cells expressed a prominent inward rectifier current and thus acquired the physiological properties of cultured microglia. Within 24 h of the lesion, the cells expressed an additional outward current, which is typical for lipopolysaccharide (LPS)-activated microglia in vitro. Seven days after the lesion, at a time of major regenerative processes in the facial nucleus, the physiological properties of microglial cells had reverted to those present prior to the pathological event. IN CONCLUSION: (i) ramified microglial cells represent a physiologically unique population of cells in the brain; (ii) are distinct from their cultured counterparts; and (iii), undergo a defined pattern of physiological states in the course of pathologic events.

Integrity signals

Registry

Crossref · 10.1046/j.1460-9568.2000.00100.x

Cites

34 of 34 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

Cited by

Sorted by citations

Authors
Boucsein, C., Kettenmann, H., & Nolte, C.
Affiliations
Max Delbrück Center (DE)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2000-06
Volume
12
Issue
6
Pages
2049-2058
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W1992967280
Cited by
166
References
34
Citations by year
2026: 2 · 2025: 2 · 2024: 4 · 2023: 7 · 2022: 6 · 2021: 13 · 2020: 7 · 2019: 8 · 2018: 8 · 2017: 10 · 2016: 5 · 2015: 5 · 2014: 10 · 2013: 4 · 2012: 8
FWCI
5.34
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
Keywords
microglia, voltage-gated currents, inward rectifier potassium current, lipopolysaccharide stimulation, facial nerve axotomy, facial nucleus, microglial activation, rat brain slices, cortical microglia, membrane potential
MeSH terms
Animals, Animals, Newborn, Cells, Cultured, Cerebral Cortex, Facial Nerve, Female, Lipopolysaccharides, Membrane Potentials, Potassium Channels, Rats, Wistar, Microglia, Patch-Clamp Techniques, Axotomy, Lectins, Plant Lectins, Cell Size, 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