Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage

Early brain injury is a series of pathophysiological changes and direct damage of brain tissue within 72 h after subarachnoid hemorrhage before cerebral vasospasm occurs. Early brain injury is a key factor affecting the prognosis of subarachnoid hemorrhage, and its possible pathological mechanisms i...

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Main Authors: Xiao-Yi Wang, Fan Wu, Ren-Ya Zhan, Heng-Jun Zhou
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-12-01
Series:Frontiers in Cellular Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fncel.2022.956185/full
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author Xiao-Yi Wang
Fan Wu
Ren-Ya Zhan
Heng-Jun Zhou
author_facet Xiao-Yi Wang
Fan Wu
Ren-Ya Zhan
Heng-Jun Zhou
author_sort Xiao-Yi Wang
collection DOAJ
description Early brain injury is a series of pathophysiological changes and direct damage of brain tissue within 72 h after subarachnoid hemorrhage before cerebral vasospasm occurs. Early brain injury is a key factor affecting the prognosis of subarachnoid hemorrhage, and its possible pathological mechanisms include oxidative stress, cell apoptosis, autophagy, and immune inflammation. Microglia are important immune cells of the central nervous system. Microglia play a dual role in protection and injury. Microglia are involved in the occurrence of brain edema, the processes of neuronal apoptosis, and the blood–brain barrier disruption after subarachnoid hemorrhage (SAH) through the signaling pathways mediated by receptors such as Toll-like receptor 4 (TLR4), calcium-sensing receptor (CaSR), and triggering receptor expressed on myeloid cells-1 (TREM-1), which secrete pro-inflammatory cytokines such as interleukins and tumor necrosis factor α. Conversely, they exert their anti-inflammatory and protective effects by expressing substances such as neuroglobin and heme oxygenase-1. This article reviews the latest developments in single-cell transcriptomics for microglia in early brain injury after subarachnoid hemorrhage and its inflammatory role.
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spelling doaj.art-5ce56e5ed5874138a772cf371dccedd32022-12-22T02:48:57ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022022-12-011610.3389/fncel.2022.956185956185Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhageXiao-Yi WangFan WuRen-Ya ZhanHeng-Jun ZhouEarly brain injury is a series of pathophysiological changes and direct damage of brain tissue within 72 h after subarachnoid hemorrhage before cerebral vasospasm occurs. Early brain injury is a key factor affecting the prognosis of subarachnoid hemorrhage, and its possible pathological mechanisms include oxidative stress, cell apoptosis, autophagy, and immune inflammation. Microglia are important immune cells of the central nervous system. Microglia play a dual role in protection and injury. Microglia are involved in the occurrence of brain edema, the processes of neuronal apoptosis, and the blood–brain barrier disruption after subarachnoid hemorrhage (SAH) through the signaling pathways mediated by receptors such as Toll-like receptor 4 (TLR4), calcium-sensing receptor (CaSR), and triggering receptor expressed on myeloid cells-1 (TREM-1), which secrete pro-inflammatory cytokines such as interleukins and tumor necrosis factor α. Conversely, they exert their anti-inflammatory and protective effects by expressing substances such as neuroglobin and heme oxygenase-1. This article reviews the latest developments in single-cell transcriptomics for microglia in early brain injury after subarachnoid hemorrhage and its inflammatory role.https://www.frontiersin.org/articles/10.3389/fncel.2022.956185/fullearly brain injuryinflammationmicroglianeuroinflammationpolarizationrole
spellingShingle Xiao-Yi Wang
Fan Wu
Ren-Ya Zhan
Heng-Jun Zhou
Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage
Frontiers in Cellular Neuroscience
early brain injury
inflammation
microglia
neuroinflammation
polarization
role
title Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage
title_full Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage
title_fullStr Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage
title_full_unstemmed Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage
title_short Inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage
title_sort inflammatory role of microglia in brain injury caused by subarachnoid hemorrhage
topic early brain injury
inflammation
microglia
neuroinflammation
polarization
role
url https://www.frontiersin.org/articles/10.3389/fncel.2022.956185/full
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AT fanwu inflammatoryroleofmicrogliainbraininjurycausedbysubarachnoidhemorrhage
AT renyazhan inflammatoryroleofmicrogliainbraininjurycausedbysubarachnoidhemorrhage
AT hengjunzhou inflammatoryroleofmicrogliainbraininjurycausedbysubarachnoidhemorrhage