Cited by 1,151Neuroinflammation and Neurodegeneration MechanismsSingle-cell and spatial transcriptomicsNeurogenesis and neuroplasticity mechanisms

Microglial brain region-dependent diversity and selective regional sensitivities to aging

Open access
Grabert, Kathleen, Michoel, Tom, Karavolos, Michail H, Clohisey, Sara, Baillie, J Kenneth, Stevens, Mark P, Freeman, Tom C, Summers, Kim M +1 more·2016·Nature Neuroscience

Abstract

Microglia have critical roles in neural development, homeostasis and neuroinflammation and are increasingly implicated in age-related neurological dysfunction. Neurodegeneration often occurs in disease-specific, spatially restricted patterns, the origins of which are unknown. We performed to our knowledge the first genome-wide analysis of microglia from discrete brain regions across the adult lifespan of the mouse, and found that microglia have distinct region-dependent transcriptional identities and age in a regionally variable manner. In the young adult brain, differences in bioenergetic and immunoregulatory pathways were the major sources of heterogeneity and suggested that cerebellar and hippocampal microglia exist in a more immune-vigilant state. Immune function correlated with regional transcriptional patterns. Augmentation of the distinct cerebellar immunophenotype and a contrasting loss in distinction of the hippocampal phenotype among forebrain regions were key features during aging. Microglial diversity may enable regionally localized homeostatic functions but could also underlie region-specific sensitivities to microglial dysregulation and involvement in age-related neurodegeneration.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/nn.4222

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Presence of a type I IFN signature in brain cells, in particular microglia, is increasingly associated with ageing and neurodegenerative disease in various species.

    “The presence of a type I IFN signature in brain cells, in particular in microglia, is increasingly being associated with ageing and neurodegenerative disease in various species13,15,39,44–50.”

    From cGAS–STING drives ageing-related inflammation and neurodegeneration (2023) · cites this paper as [48]

    The Results section, “Pathways underpinning region-specific microglial ageing profiles” (page unavailable), reports that interferon-pathway genes increased with age, predominantly in cerebellar microglia. Another Results passage identifies the type I interferon receptor as a predicted upstream regulator. The paper does not establish an interferon signature associated with neurodegenerative disease across various species. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Heterogeneity of microglia between different brain areas and between different sexes is increasingly recognized.

    “Heterogeneity of microglia between different brain areas (Grabert et al., 2016) and between different sexes (Villa et al., 2018) is increasingly recognized.”
  • Microglia also show alterations in gene expression in the aging brain, and these changes vary by brain region, with cerebellar microglia showing the most changes with age, the same result found for astrocytes.

    “Microglia also show alterations in gene expression in the aging brain, and, as with astrocytes, these changes vary by brain region, with cerebellar microglia showing the most changes with age, the same result we found for astrocytes (Grabert et al., 2016).”

    From The aging astrocyte transcriptome from multiple regions of the mouse brain. (2018) · cites this paper as Grabert et al., 2016

  • Transcriptional analysis of microglia from different regions of the healthy adult brain revealed remarkable regional diversity beyond a core transcriptome.

    “Recent transcriptional analysis of microglia from different regions of the healthy adult brain has revealed remarkable regional diversity of microglia beyond a core transcriptome (45).”
  • There was surprisingly limited overlap in microglial genes regulated by aging in human versus mouse.

    “There was surprisingly limited overlap, however, in microglial genes regulated by aging in human versus mouse (Grabert et al., 2016; Galatro et al., 2017)”

    From Microglia in Alzheimer’s disease (2018) · cites this paper as Grabert et al., 2016

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Grabert, K., Michoel, T., Karavolos, M. H., Clohisey, S., Baillie, J. K., Stevens, M. P., Freeman, T. C., Summers, K. M., & McColl, B. W.
Affiliations
Roslin Institute (GB)
Corresponding author
McColl, Barry W
Venue
Nature Neuroscience
Published
2016-01-18
Volume
19
Issue
3
Pages
504-516
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2261364877
Cited by
1,151
References
55
Citations by year
2026: 84 · 2025: 82 · 2024: 99 · 2023: 108 · 2022: 139 · 2021: 139 · 2020: 122 · 2019: 142 · 2018: 102 · 2017: 88 · 2016: 44
FWCI
68.65
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, other-oa)
Funders
  • Wellcome Trust (103258/Z/13/Z)
  • University of Edinburgh
  • Darwin Trust of Edinburgh
  • Medical Research Council (MR/L003384/1, MR/K001744/1)
  • Biotechnology and Biological Sciences Research Council (BBS/E/D/05191131, BBS/E/D/20251969, BBS/E/D/20211552, BBS/E/D/20241864, BBS/E/D/20211551, BBS/E/D/20241863, BB/ J004243/1, BB/I001107/1, BB /J004332/1, BBS/E/D/20310000)
  • Natural Environment Research Council (NBAF010003, R8/H10/56)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
microglia, regional heterogeneity, brain aging, age-related neurodegeneration, cerebellum, hippocampus, bioenergetics, immune regulation, neuroinflammation, mouse brain
MeSH terms
Aging, Animals, Brain, Phenotype, Microglia, Mice, Transcriptome

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review