Cited by 280Neuroinflammation and Neurodegeneration MechanismsAcute Ischemic Stroke ManagementNeurological Disease Mechanisms and Treatments

Contribution of microglia/macrophages to expansion of infarction and response of oligodendrocytes after focal cerebral ischemia in rats

Mabuchi, Takuma, Kitagawa, Kazuo, Ohtsuki, Toshiho, Kuwabara, Keisuke, Yagita, Yoshiki, Yanagihara, Takehiko, Hori, Masatsugu, Matsumoto, Masayasu·2000·Stroke

Abstract

BACKGROUND AND PURPOSE: The purpose of this study was (1) to examine the contribution of microglia and macrophages with their interleukin-1beta production and (2) to assess the vulnerability and response of oligodendrocytes in cerebral infarction. METHODS: Male Wistar rats were subjected to permanent occlusion of the left middle cerebral artery. Expansion of ischemic infarction and response of oligodendrocytes were investigated together with accumulation of inflammatory cells, production of interleukin-1beta, and disruption of the blood-brain barrier. Apoptotic cell death was inferred from fragmented DNA and the expression of proapoptotic Bax protein. RESULTS: During expansion of infarction, amoeboid microglia and extravasation of serum albumin were observed not only in the infarcted area but also in the adjacent surviving area, whereas macrophages accumulated along the boundary and granulocytes migrated into the center of the infarction. Both amoeboid microglia and macrophages produced interleukin-1beta, an inflammatory cytokine, during an early ischemic period. Furthermore, macrophages within the infarcted tissue expressed Bax protein and subsequently showed fragmented nuclear DNA. Oligodendrocytes were detected in the infarcted area even after 24 hours following middle cerebral artery occlusion, but they subsequently developed fragmented DNA. A week after onset of ischemia, oligodendrocytes were found to be accumulated in the intact area bordered with the infarct together with reactive astrocytes. CONCLUSIONS: Our results suggest the importance of amoeboid microglia, macrophages, and their interleukin-1beta production in gradual expansion of cerebral infarction. Resident oligodendrocytes may be resistant to ischemic insults, and oligodendrocytes accumulated at the border of the infarction may participate in tissue repair after cerebral infarction.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1161/01.str.31.7.1735

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 9

  1. Garcia JH, Yoshida Y, Chen H, Li Y, Zhang ZG, Lian J, Chen S, Chopp M. Progression from ischemic injury to infarct following middle cerebral artery occlusion in the rat. Am J Pathol. 1993;1993:142:623-635.
  2. Iadecola C, Zhang F, Xu X. Inhibition of inducible nitric oxide synthase ameliorates cerebral ischemic damage. Am J Physiol. 1995;268: R286 -R292.
  3. Bruck W, Schmied M, Suchanek G, Bruck Y, Breitshopf H, Poser S, Piddlesden S, Lassmann H. Oligodendrocytes in the early course of multiple sclerosis. Ann Neurol. 1994;36:65-73.
  4. Mitrovic B, Martin FC, Charled AC, Ignarro LJ, Anton PA, Shanahan F, Merrill JE. Neurotransmitters and cytokines in CNS pathology. Prog Brain Res. 1994;103:319 -330.
  5. Brierley JB, Graham DI. Hypoxia and vascular disorders of the central nervous system. In: Adams JH, Corsellis JAN, Duchen LW, eds. Green- field's Neuropathology. 4th ed. London, England: Edward Arnold; 1984: 125-207.
  6. Lehrmann E, Christensen T, Zimmer J, Diemer NH, Finsen B. Microglial and macrophage reactions mark progressive changes and define the penumbra in the rat neocortex and striatum after transient middle cerebral artery occlusion. J Comp Neurol. 1997;386:461-476.
  7. del Zoppo GJ, Schmid-Scho ¨nbein GW, Mori E, Copeland BR, Chang C-M. Polymorphonuclear leukocytes occlude capillaries following middle cerebral artery occlusion and reperfusion in baboons. Stroke. 1991;22:1276 -1283.
  8. Wang XK, Yue T-L, Barone FC, White RF, Gagnon RC, Feuerstein GZ. Concommitant cortical expression of TNF-a ´and IL-1a ˆmRNA following transient focal ischemia. Mol Chem Neuropathol. 1994;23:103-114.
  9. Lehrmann E, Kiefer R, Christensen T, Tovka KV, Zimmer J, Diemer NH, Hartung H, Finsen B. Microglia and macrophages are major sources of locally produced transforming growth factor-a ˆ1 after transient middle cerebral artery occlusion in rats. Glia. 1998;24:437-448.

Cited by

Sorted by citations

Authors
Mabuchi, T., Kitagawa, K., Ohtsuki, T., Kuwabara, K., Yagita, Y., Yanagihara, T., Hori, M., & Matsumoto, M.
Affiliations
The University of Osaka (JP)
Venue
Stroke
Published
2000-07
Volume
31
Issue
7
Pages
1735-1743
ISSN
  • 0039-2499 (ISSN-L)
  • 1524-4628
OpenAlex
W2146198846
Cited by
280
References
51
Citations by year
2026: 1 · 2025: 2 · 2024: 8 · 2023: 7 · 2022: 10 · 2021: 11 · 2020: 7 · 2019: 6 · 2018: 9 · 2017: 9 · 2016: 11 · 2015: 8 · 2014: 17 · 2013: 13 · 2012: 28
FWCI
7.31
Type
journal article
Language
en
Open access
closed
Locations
  • Stroke (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
microglia, macrophages, focal cerebral ischemia, oligodendrocytes, IL-1β, blood-brain barrier disruption, Bax, apoptosis, reactive astrocytes, middle cerebral artery occlusion, tissue repair, neuroinflammation
MeSH terms
Animals, Brain Ischemia, Interleukin-1, Macrophages, Male, Oligodendroglia, RNA, Messenger, Rats, Wistar, Apoptosis, In Situ Hybridization, Microglia, Myelin Proteolipid Protein, Infarction, Middle Cerebral Artery, In Situ Nick-End Labeling, Rats, DNA Fragmentation

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