Abstract
Stroke is characterized by high incidence, disability, mortality, recurrence, which poses a heavy
burden on individuals and society. Acute ischemic stroke (AIS) is particularly common in clinical practice, and
inflammatory response plays a crucial role in its pathological process. After the onset of AIS, neutrophils are the
first activated peripheral immune cells to migrate to the ischemic parenchyma. These activated neutrophils
exhibit a longer lifespan and trigger persistent inflammation that can lead to blood-brain barrier disruption,
cerebral edema, and neurological deficits. Recent studies have found that intracranial neutrophils can undergo
several manner of death: NETosis, apoptosis and pyroptosis. Neutrophils can be phagocytosed and cleared by
macrophages/microglia. Moreover, they can also leave the local inflammatory tissue through reverse
transendothelial migration. Thus, it is of great significance to elucidate the death and clearance mechanism of
intracranial neutrophils for improving the prognosis of AIS.
Key words
acute ischemic stroke; neutrophils; NETosis; apoptosis; efferocytosis; pyroptosis; reverse
transendothelial migration; cell death
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Death and Clearance of Intracranial Neutrophils in Acute Ischemic Stroke[J]. Neural Injury and Functional Reconstruction. 2025, 20(7): 414-419
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