Repopulating microglia promote brain repair in an IL-6-dependent manner

Cognitive dysfunction and reactive microglia are hallmarks of traumatic brain injury (TBI), yet whether these cells contribute to cognitive deficits and secondary inflammatory pathology remains poorly understood. Here, we show that removal of microglia from the mouse brain has little effect on the o...

詳細記述

書誌詳細
主要な著者: Willis, EF, MacDonald, KPA, Nguyen, QH, Garrido, AL, Gillespie, ER, Harley, SBR, Bartlett, PF, Schroder, WA, Yates, AG, Anthony, DC, Rose-John, S, Ruitenberg, MJ, Vukovic, J
フォーマット: Journal article
言語:English
出版事項: Cell Press 2020
_version_ 1826280957861167104
author Willis, EF
MacDonald, KPA
Nguyen, QH
Garrido, AL
Gillespie, ER
Harley, SBR
Bartlett, PF
Schroder, WA
Yates, AG
Anthony, DC
Rose-John, S
Ruitenberg, MJ
Vukovic, J
author_facet Willis, EF
MacDonald, KPA
Nguyen, QH
Garrido, AL
Gillespie, ER
Harley, SBR
Bartlett, PF
Schroder, WA
Yates, AG
Anthony, DC
Rose-John, S
Ruitenberg, MJ
Vukovic, J
author_sort Willis, EF
collection OXFORD
description Cognitive dysfunction and reactive microglia are hallmarks of traumatic brain injury (TBI), yet whether these cells contribute to cognitive deficits and secondary inflammatory pathology remains poorly understood. Here, we show that removal of microglia from the mouse brain has little effect on the outcome of TBI, but inducing the turnover of these cells through either pharmacologic or genetic approaches can yield a neuroprotective microglial phenotype that profoundly aids recovery. The beneficial effects of these repopulating microglia are critically dependent on interleukin-6 (IL-6) trans-signaling via the soluble IL-6 receptor (IL-6R) and robustly support adult neurogenesis, specifically by augmenting the survival of newborn neurons that directly support cognitive function. We conclude that microglia in the mammalian brain can be manipulated to adopt a neuroprotective and pro-regenerative phenotype that can aid repair and alleviate the cognitive deficits arising from brain injury.
first_indexed 2024-03-07T00:21:33Z
format Journal article
id oxford-uuid:7cb681fb-30e7-4915-a2d3-5e39f53f18be
institution University of Oxford
language English
last_indexed 2024-03-07T00:21:33Z
publishDate 2020
publisher Cell Press
record_format dspace
spelling oxford-uuid:7cb681fb-30e7-4915-a2d3-5e39f53f18be2022-03-26T20:58:55ZRepopulating microglia promote brain repair in an IL-6-dependent mannerJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7cb681fb-30e7-4915-a2d3-5e39f53f18beEnglishSymplectic ElementsCell Press2020Willis, EFMacDonald, KPANguyen, QHGarrido, ALGillespie, ERHarley, SBRBartlett, PFSchroder, WAYates, AGAnthony, DCRose-John, SRuitenberg, MJVukovic, JCognitive dysfunction and reactive microglia are hallmarks of traumatic brain injury (TBI), yet whether these cells contribute to cognitive deficits and secondary inflammatory pathology remains poorly understood. Here, we show that removal of microglia from the mouse brain has little effect on the outcome of TBI, but inducing the turnover of these cells through either pharmacologic or genetic approaches can yield a neuroprotective microglial phenotype that profoundly aids recovery. The beneficial effects of these repopulating microglia are critically dependent on interleukin-6 (IL-6) trans-signaling via the soluble IL-6 receptor (IL-6R) and robustly support adult neurogenesis, specifically by augmenting the survival of newborn neurons that directly support cognitive function. We conclude that microglia in the mammalian brain can be manipulated to adopt a neuroprotective and pro-regenerative phenotype that can aid repair and alleviate the cognitive deficits arising from brain injury.
spellingShingle Willis, EF
MacDonald, KPA
Nguyen, QH
Garrido, AL
Gillespie, ER
Harley, SBR
Bartlett, PF
Schroder, WA
Yates, AG
Anthony, DC
Rose-John, S
Ruitenberg, MJ
Vukovic, J
Repopulating microglia promote brain repair in an IL-6-dependent manner
title Repopulating microglia promote brain repair in an IL-6-dependent manner
title_full Repopulating microglia promote brain repair in an IL-6-dependent manner
title_fullStr Repopulating microglia promote brain repair in an IL-6-dependent manner
title_full_unstemmed Repopulating microglia promote brain repair in an IL-6-dependent manner
title_short Repopulating microglia promote brain repair in an IL-6-dependent manner
title_sort repopulating microglia promote brain repair in an il 6 dependent manner
work_keys_str_mv AT willisef repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT macdonaldkpa repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT nguyenqh repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT garridoal repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT gillespieer repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT harleysbr repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT bartlettpf repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT schroderwa repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT yatesag repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT anthonydc repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT rosejohns repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT ruitenbergmj repopulatingmicrogliapromotebrainrepairinanil6dependentmanner
AT vukovicj repopulatingmicrogliapromotebrainrepairinanil6dependentmanner