Cited by 371Neuroinflammation and Neurodegeneration MechanismsSingle-cell and spatial transcriptomicsMultiple Sclerosis Research Studies

Dual ontogeny of disease-associated microglia and disease inflammatory macrophages in aging and neurodegeneration

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Silvin, Aymeric, Uderhardt, Stefan, Piot, Cecile, Da Mesquita, Sandro, Yang, Katharine, Geirsdottir, Laufey, Mulder, Kevin, Eyal, David +22 more·2022·Immunity

Abstract

Brain macrophage populations include parenchymal microglia, border-associated macrophages, and recruited monocyte-derived cells; together, they control brain development and homeostasis but are also implicated in aging pathogenesis and neurodegeneration. The phenotypes, localization, and functions of each population in different contexts have yet to be resolved. We generated a murine brain myeloid scRNA-seq integration to systematically delineate brain macrophage populations. We show that the previously identified disease-associated microglia (DAM) population detected in murine Alzheimer's disease models actually comprises two ontogenetically and functionally distinct cell lineages: embryonically derived triggering receptor expressed on myeloid cells 2 (TREM2)-dependent DAM expressing a neuroprotective signature and monocyte-derived TREM2-expressing disease inflammatory macrophages (DIMs) accumulating in the brain during aging. These two distinct populations appear to also be conserved in the human brain. Herein, we generate an ontogeny-resolved model of brain myeloid cell heterogeneity in development, homeostasis, and disease and identify cellular targets for the treatment of neurodegeneration.

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Crossref · 10.1016/j.immuni.2022.07.004

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Authors
Silvin, A., Uderhardt, S., Piot, C., Da Mesquita, S., Yang, K., Geirsdottir, L., Mulder, K., Eyal, D., Liu, Z., Bridlance, C., Thion, M. S., Zhang, X. M., Kong, W. T., Deloger, M., Fontes, V., Weiner, A., Ee, R., Dress, R., Hang, J. W., Balachander, A., Chakarov, S., Malleret, B., Dunsmore, G., Cexus, O., Chen, J., Garel, S., Dutertre, C. A., Amit, I., Kipnis, J., & Ginhoux, F.
Affiliations
  • Agency for Science, Technology and Research (SG)
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
  • Inserm (FR)
  • Shanghai Jiao Tong University (CN)
  • Centre National de la Recherche Scientifique (FR)
  • Weizmann Institute of Science (IL)
  • National University of Singapore (SG)
  • Washington University in St. Louis (US)
Corresponding author
Ginhoux, Florent
Venue
Immunity
Publisher
Elsevier BV
Published
2022-08
Volume
55
Issue
8
Pages
1448-1465.e6
ISSN
1074-7613 (ISSN-L)
OpenAlex
W4289794258
Cited by
368
References
69
Citations by year
2026: 80 · 2025: 99 · 2024: 100 · 2023: 77 · 2022: 10 · 2012: 2
FWCI
25.27
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
disease-associated microglia, brain macrophages, TREM2, monocyte-derived macrophages, border-associated macrophages, aging, neurodegeneration, Alzheimer's disease, neuroprotection, single-cell transcriptomics
MeSH terms
Aging, Alzheimer Disease, Animals, Brain, Humans, Macrophages, Membrane Glycoproteins, Receptors, Immunologic, Microglia, Mice

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