Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegeneration

Microglial phagocytosis of dead or dying neurons can be beneficial by preventing secondary necrosis and release of pro-inflammatory intracellular components. However, there is now evidence that under certain conditions microglia can also phagocytose viable neurons, thus executing their death. In par...

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Main Authors: Jonas J Neher, Urte eNeniskyte, Guy C Brown
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-02-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fphar.2012.00027/full
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author Jonas J Neher
Urte eNeniskyte
Guy C Brown
author_facet Jonas J Neher
Urte eNeniskyte
Guy C Brown
author_sort Jonas J Neher
collection DOAJ
description Microglial phagocytosis of dead or dying neurons can be beneficial by preventing secondary necrosis and release of pro-inflammatory intracellular components. However, there is now evidence that under certain conditions microglia can also phagocytose viable neurons, thus executing their death. In particular, microglia eliminate synapses and neurons during development, but they also kill neurons through phagocytosis during neuroinflammation in the mature brain. Neuroinflammation accompanies many neurodegenerative diseases, such as Alzheimer’s Disease, Parkinson’s Disease, Frontotemporal Dementia and Multiple Sclerosis. In this review, we discuss the evidence supporting a role for primary phagocytosis in neurodegeneration and outline the mechanisms of this process.
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spelling doaj.art-b18f3e4f6d9a4722aeed59e96f0be8812022-12-22T01:42:37ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122012-02-01310.3389/fphar.2012.0002719364Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegenerationJonas J Neher0Urte eNeniskyte1Guy C Brown2University of CambridgeUniversity of CambridgeUniversity of CambridgeMicroglial phagocytosis of dead or dying neurons can be beneficial by preventing secondary necrosis and release of pro-inflammatory intracellular components. However, there is now evidence that under certain conditions microglia can also phagocytose viable neurons, thus executing their death. In particular, microglia eliminate synapses and neurons during development, but they also kill neurons through phagocytosis during neuroinflammation in the mature brain. Neuroinflammation accompanies many neurodegenerative diseases, such as Alzheimer’s Disease, Parkinson’s Disease, Frontotemporal Dementia and Multiple Sclerosis. In this review, we discuss the evidence supporting a role for primary phagocytosis in neurodegeneration and outline the mechanisms of this process.http://journal.frontiersin.org/Journal/10.3389/fphar.2012.00027/fullInflammationMicrogliaPhagocytosisneurodegenerationlactadherinMFG-E8
spellingShingle Jonas J Neher
Urte eNeniskyte
Guy C Brown
Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegeneration
Frontiers in Pharmacology
Inflammation
Microglia
Phagocytosis
neurodegeneration
lactadherin
MFG-E8
title Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegeneration
title_full Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegeneration
title_fullStr Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegeneration
title_full_unstemmed Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegeneration
title_short Primary phagocytosis of neurons by inflamed microglia: potential roles in neurodegeneration
title_sort primary phagocytosis of neurons by inflamed microglia potential roles in neurodegeneration
topic Inflammation
Microglia
Phagocytosis
neurodegeneration
lactadherin
MFG-E8
url http://journal.frontiersin.org/Journal/10.3389/fphar.2012.00027/full
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AT urteeneniskyte primaryphagocytosisofneuronsbyinflamedmicrogliapotentialrolesinneurodegeneration
AT guycbrown primaryphagocytosisofneuronsbyinflamedmicrogliapotentialrolesinneurodegeneration