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Neuronal Loss after Stroke Due to Microglial Phagocytosis of Stressed Neurons.

cam.depositDate2021-12-10
cam.issuedOnline2021-12-14
cam.orpheus.successTue Feb 01 19:02:27 GMT 2022 - Embargo updated*
cam.orpheus.successVoR added.
dc.contributor.authorBrown, Guy
dc.contributor.orcidBrown, Guy [0000-0002-3610-1730]
dc.date.accessioned2021-12-14T00:30:40Z
dc.date.available2021-12-14T00:30:40Z
dc.date.issued2021-12-14
dc.date.updated2021-12-10T10:24:05Z
dc.description.abstractAfter stroke, there is a rapid necrosis of all cells in the infarct, followed by a delayed loss of neurons both in brain areas surrounding the infarct, known as 'selective neuronal loss', and in brain areas remote from, but connected to, the infarct, known as 'secondary neurodegeneration'. Here we review evidence indicating that this delayed loss of neurons after stroke is mediated by the microglial phagocytosis of stressed neurons. After a stroke, neurons are stressed by ongoing ischemia, excitotoxicity and/or inflammation and are known to: (i) release "find-me" signals such as ATP, (ii) expose "eat-me" signals such as phosphatidylserine, and (iii) bind to opsonins, such as complement components C1q and C3b, inducing microglia to phagocytose such neurons. Blocking these factors on neurons, or their phagocytic receptors on microglia, can prevent delayed neuronal loss and behavioral deficits in rodent models of ischemic stroke. Phagocytic receptors on microglia may be attractive treatment targets to prevent delayed neuronal loss after stroke due to the microglial phagocytosis of stressed neurons.
dc.identifier.doi10.17863/CAM.78822
dc.identifier.eissn1422-0067
dc.identifier.issn1661-6596
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/331371
dc.language.isoeng
dc.publisherMDPI AG
dc.publisher.departmentDepartment of Biochemistry
dc.rightsAttribution 4.0 International (CC BY)
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleNeuronal Loss after Stroke Due to Microglial Phagocytosis of Stressed Neurons.
dc.typeArticle
dcterms.dateAccepted2021-12-10
prism.publicationNameInt J Mol Sci
pubs.funder-project-idMedical Research Council (MR/L010593/1)
pubs.licence-display-nameApollo Repository Deposit Licence Agreement
pubs.licence-identifierapollo-deposit-licence-2-1
rioxxterms.typeJournal Article/Review
rioxxterms.versionVoR
rioxxterms.versionofrecord10.3390/ijms222413442

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