Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilities

Abstract Neonatal arterial ischemic stroke (NAIS) and neonatal hypoxic‐ischemic encephalopathy (HIE) are common causes of neurological impairments in infants, for which treatment options are very limited. NAIS and HIE induce an innate immune response that involves the recruitment of peripheral immun...

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Main Author: Pedro M. Pimentel‐Coelho
Format: Article
Language:English
Published: Wiley 2023-09-01
Series:Neuroprotection
Subjects:
Online Access:https://doi.org/10.1002/nep3.22
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author Pedro M. Pimentel‐Coelho
author_facet Pedro M. Pimentel‐Coelho
author_sort Pedro M. Pimentel‐Coelho
collection DOAJ
description Abstract Neonatal arterial ischemic stroke (NAIS) and neonatal hypoxic‐ischemic encephalopathy (HIE) are common causes of neurological impairments in infants, for which treatment options are very limited. NAIS and HIE induce an innate immune response that involves the recruitment of peripheral immune cells, including monocytes, into the brain. Monocytes and monocyte‐derived cells have the potential to contribute to both harmful and beneficial pathophysiological processes, such as neuroinflammation and brain repair, but their roles in NAIS and HIE remain poorly understood. Furthermore, recent evidence indicates that monocyte‐derived macrophages can persist in the brain for several months following NAIS and HIE in mice, with possible long‐lasting consequences that are still unknown. This review provides a comprehensive overview of the mechanisms of monocyte infiltration and their potential functions in the ischemic brain, focusing on HIE and NAIS. Therapeutic strategies targeting monocytes and the possibility of using monocytes for cell‐based therapies are also discussed.
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spelling doaj-art-a47dbea6cfd8427c93c9229d5f1b17ec2025-08-20T03:13:12ZengWileyNeuroprotection2770-72962770-730X2023-09-0111667910.1002/nep3.22Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilitiesPedro M. Pimentel‐Coelho0Carlos Chagas Filho Biophysics Institute Federal University of Rio de Janeiro Rio de Janeiro BrazilAbstract Neonatal arterial ischemic stroke (NAIS) and neonatal hypoxic‐ischemic encephalopathy (HIE) are common causes of neurological impairments in infants, for which treatment options are very limited. NAIS and HIE induce an innate immune response that involves the recruitment of peripheral immune cells, including monocytes, into the brain. Monocytes and monocyte‐derived cells have the potential to contribute to both harmful and beneficial pathophysiological processes, such as neuroinflammation and brain repair, but their roles in NAIS and HIE remain poorly understood. Furthermore, recent evidence indicates that monocyte‐derived macrophages can persist in the brain for several months following NAIS and HIE in mice, with possible long‐lasting consequences that are still unknown. This review provides a comprehensive overview of the mechanisms of monocyte infiltration and their potential functions in the ischemic brain, focusing on HIE and NAIS. Therapeutic strategies targeting monocytes and the possibility of using monocytes for cell‐based therapies are also discussed.https://doi.org/10.1002/nep3.22bone marrowcerebral ischemiamicrogliamonocyte‐derived macrophagesmonocytesneonatal brain injury
spellingShingle Pedro M. Pimentel‐Coelho
Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilities
Neuroprotection
bone marrow
cerebral ischemia
microglia
monocyte‐derived macrophages
monocytes
neonatal brain injury
title Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilities
title_full Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilities
title_fullStr Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilities
title_full_unstemmed Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilities
title_short Monocytes in neonatal stroke and hypoxic‐ischemic encephalopathy: Pathophysiological mechanisms and therapeutic possibilities
title_sort monocytes in neonatal stroke and hypoxic ischemic encephalopathy pathophysiological mechanisms and therapeutic possibilities
topic bone marrow
cerebral ischemia
microglia
monocyte‐derived macrophages
monocytes
neonatal brain injury
url https://doi.org/10.1002/nep3.22
work_keys_str_mv AT pedrompimentelcoelho monocytesinneonatalstrokeandhypoxicischemicencephalopathypathophysiologicalmechanismsandtherapeuticpossibilities