Cited by 238Neuroinflammation and Neurodegeneration MechanismsAcute Ischemic Stroke ManagementTraumatic Brain Injury and Neurovascular Disturbances

Inflammation in Ischemic Brain Injury: Timing Is Important

Kriz, Jasna·2006·Critical Reviews™ in Neurobiology

Abstract

Inflammation is a defense reaction against diverse insults that serves to remove noxious agents and to limit their detrimental effects. There is increasing evidence that post-ischemic inflammation plays an important role in brain ischemia. However, whether inflammatory processes are deleterious or beneficial to recovery is presently a matter of debate and controversy. Experimentally and clinically, stroke is followed by an acute and a prolonged inflammatory response characterized by the production of inflammatory cytokines, leukocyte and monocyte infiltration in the brain, and the activation of resident glial cells. These events may contribute to ischemic brain injury. Several groups report conflicting results regarding the role of inflammation and effects of anti-inflammatory treatments in cerebral ischemia. Experimental studies employing knockout mice for different cytokines and chemokines provide only partial answers. This highlights the importance of clarifying the role of the immune response in pathological changes at the site of ischemic lesions in the brain. Here, we describe dual effects of the brain's inflammatory response and new evidence for a neuroprotective role of proliferating microglial cells in ischemia. In addition, we discuss a potential role of post-ischemic inflammation in brain regeneration and modulation of synaptic plasticity.

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Crossref · 10.1615/critrevneurobiol.v18.i1-2.150

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  • Resident macrophages and invading myelomonocytic cells release cytokines, chemokines, ROS, NETs, and MMP-9, which lead to further disruption of the BBB, brain edema, neuronal death, and hemorrhagic transformation.

    “Resident macrophages and invading myelomonocytic cells release cytokines (such as TNFα and IL-1β), chemokines, reactive oxygen species (ROS), neutrophil extracellular traps (NETs), and MMP-9, which lead to further disruption of the BBB, brain edema, neuronal death, and hemorrhagic transformation (Fig. 4) (136).”
  • The acute phase after ischemia is characterized by rapid release of DAMPs, which are sensed by endothelial cells as well as resident and circulating immune cells.

    “The acute phase after ischemia is characterized by the rapid-release DAMPs, which are sensed by endothelial cells as well as resident and circulating immune cells.”

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Authors
Kriz, J.
Venue
Critical Reviews™ in Neurobiology
Publisher
Begell House
Published
2006
Volume
18
Issue
1-2
Pages
145-157
ISSN
0892-0915 (ISSN-L)
OpenAlex
W1982308497
Cited by
238
References
0
Citations by year
2026: 3 · 2025: 3 · 2024: 13 · 2023: 12 · 2022: 11 · 2021: 8 · 2020: 7 · 2019: 21 · 2018: 10 · 2017: 8 · 2016: 13 · 2015: 13 · 2014: 21 · 2013: 23 · 2012: 18
FWCI
3.92
Type
journal article
Language
en
Open access
closed
Locations
  • Critical Reviews in Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
Keywords
post-ischemic inflammation, cerebral ischemia, stroke, neuroinflammation, inflammatory cytokines, leukocyte infiltration, monocyte infiltration, glial activation, microglia, neuroprotection, anti-inflammatory therapy, cytokine knockout mice, brain regeneration, synaptic plasticity
MeSH terms
Animals, Brain Ischemia, Chemotaxis, Leukocyte, Encephalitis, Gliosis, Humans, Cytokines, Microglia, Cytoprotection, Brain Infarction, Cell Proliferation

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