Coupled proliferation and apoptosis maintain the rapid turnover of microglia in the adult brain
Coupled proliferation and apoptosis maintain the rapid turnover of microglia in the adult brain
Summary
Microglia play key roles in brain development, homeostasis, and function, and it is widely assumed that the adult population is long lived and maintained by self-renewal. However, the precise temporal and spatial dynamics of the microglial population are unknown. We show in mice and humans that the turnover of microglia is remarkably fast, allowing the whole population to be renewed several times during a lifetime. The number of microglial cells remains steady from late postnatal stages until aging and is maintained by the spatial and temporal coupling of proliferation and apoptosis, as shown by pulse-chase studies, chronic in vivo imaging of microglia, and the use of mouse models of dysregulated apoptosis. Our results reveal that the microglial population is constantly and rapidly remodeled, expanding our understanding of its role in the maintenance of brain homeostasis.
391-405
Askew, Katharine
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Li, Kaizhen
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Olmos-Alonso, Adrian
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Garcia-Moreno, Fernando
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Liang, Yajie
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Richardson, Philippa
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Tipton, Thomas
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Chapman, Mark
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Riecken, Kristoffer
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Beccari, Sol
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Sierra, Amanda
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Molnar, Zoltan
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Cragg, Mark S.
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Garaschuk, Olga
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Perry, V. Hugh
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Gomez-Nicola, Diego
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10 January 2017
Askew, Katharine
ffc96fb4-f94c-4cb7-8479-e9f0b2dae0c7
Li, Kaizhen
49fd8b31-e763-4b28-946f-e78fcd74fd7a
Olmos-Alonso, Adrian
c52c3bd9-2cf0-4b55-9214-cb549449db75
Garcia-Moreno, Fernando
ecd62243-4db3-48f6-94c3-f8d0d636319e
Liang, Yajie
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Richardson, Philippa
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Tipton, Thomas
a0a94b14-7d09-4411-b988-84c9d39eb0d6
Chapman, Mark
8bac4a92-bfa7-4c3c-af29-9af852ef6383
Riecken, Kristoffer
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Beccari, Sol
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Sierra, Amanda
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Molnar, Zoltan
9b15b8da-6939-43c6-946f-6c7f213baaf7
Cragg, Mark S.
ec97f80e-f3c8-49b7-a960-20dff648b78c
Garaschuk, Olga
f751209b-b876-41b8-9d83-b999f3ce1f82
Perry, V. Hugh
8f29d36a-8e1f-4082-8700-09483bbaeae4
Gomez-Nicola, Diego
0680aa66-9dee-47cf-a8d3-e39c988f85b5
Askew, Katharine, Li, Kaizhen, Olmos-Alonso, Adrian, Garcia-Moreno, Fernando, Liang, Yajie, Richardson, Philippa, Tipton, Thomas, Chapman, Mark, Riecken, Kristoffer, Beccari, Sol, Sierra, Amanda, Molnar, Zoltan, Cragg, Mark S., Garaschuk, Olga, Perry, V. Hugh and Gomez-Nicola, Diego
(2017)
Coupled proliferation and apoptosis maintain the rapid turnover of microglia in the adult brain.
Cell Reports, 18 (2), .
(doi:10.1016/j.celrep.2016.12.041).
Abstract
Summary
Microglia play key roles in brain development, homeostasis, and function, and it is widely assumed that the adult population is long lived and maintained by self-renewal. However, the precise temporal and spatial dynamics of the microglial population are unknown. We show in mice and humans that the turnover of microglia is remarkably fast, allowing the whole population to be renewed several times during a lifetime. The number of microglial cells remains steady from late postnatal stages until aging and is maintained by the spatial and temporal coupling of proliferation and apoptosis, as shown by pulse-chase studies, chronic in vivo imaging of microglia, and the use of mouse models of dysregulated apoptosis. Our results reveal that the microglial population is constantly and rapidly remodeled, expanding our understanding of its role in the maintenance of brain homeostasis.
Text
Askew et al Cell Rep 2016.pdf
- Accepted Manuscript
Text
PIIS2211124716317466.pdf
- Version of Record
More information
Accepted/In Press date: 13 December 2016
e-pub ahead of print date: 10 January 2017
Published date: 10 January 2017
Organisations:
Cancer Sciences, Biomedicine
Identifiers
Local EPrints ID: 403985
URI: http://eprints.soton.ac.uk/id/eprint/403985
ISSN: 2211-1247
PURE UUID: a3159248-6623-464d-b247-4993fcdceb5d
Catalogue record
Date deposited: 19 Dec 2016 12:06
Last modified: 16 Mar 2024 04:14
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Contributors
Author:
Katharine Askew
Author:
Kaizhen Li
Author:
Adrian Olmos-Alonso
Author:
Fernando Garcia-Moreno
Author:
Yajie Liang
Author:
Philippa Richardson
Author:
Thomas Tipton
Author:
Kristoffer Riecken
Author:
Sol Beccari
Author:
Amanda Sierra
Author:
Zoltan Molnar
Author:
Olga Garaschuk
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