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[Cytokines in clinical and experimental ischemic stroke]
1Zakład Neuroimmunologii Klinicznej, Katedra Neurologii, Akademia Medyczna, Instytut Centrum Medycyny Doświadczalnej i Klinicznej PAN im. M. Mossakowskiego w Poznaniu.
Neurologia I Neurochirurgia Polska
|March 30, 2004
Summary
Cytokines, signaling proteins, worsen stroke damage by promoting inflammation. However, these molecules may also offer neuroprotection, impacting stroke outcomes.
Area of Science:
- Neuroscience
- Immunology
- Pathology
Context:
- Acute cerebral ischemia triggers inflammatory responses, increasing infarct size and neurological deficits.
- Brain-resident cells synthesize cytokines, crucial for cell communication and inflammatory cell infiltration into ischemic regions.
- Proinflammatory cytokines like tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta) initiate and amplify the inflammatory cascade.
Purpose:
- To review the role of cytokines in both clinical and experimental stroke models.
- To document the dual nature of cytokines, highlighting their detrimental and potentially neuroprotective effects in ischemic brain injury.
Summary:
- Cytokines are key mediators in the inflammatory response following cerebral ischemia, influencing endothelial-leukocyte interactions and inflammatory cell influx.
- Studies show that suppressing proinflammatory cytokine expression reduces infarct size in animal stroke models.
- Elevated cytokine levels in cerebrospinal fluid and serum correlate with stroke severity and infarct volume, suggesting predictive value for patient outcomes.
Impact:
- Understanding cytokine roles is vital for developing targeted stroke therapies.
- Cytokine modulation presents a potential therapeutic strategy to mitigate ischemic brain damage.
- This review underscores the complex, dual role of cytokines in stroke, offering insights for future research and clinical applications.