Journal
CELL REPORTS
Volume 22, Issue 3, Pages 832-847Publisher
CELL PRESS
DOI: 10.1016/j.celrep.2017.12.066
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Funding
- National Institute of Neurological Disorders and Stroke [U24 NS072026]
- National Institute on Aging [P30 AG19610]
- Arizona Department of Health Services [211002]
- Arizona Biomedical Research Commission [4001, 0011, 05-901, 1001]
- Michael J. Fox Foundation for Parkinson's Research
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Microglia, the CNS-resident immune cells, play important roles in disease, but the spectrum of their possible activation states is not well understood. We derived co-regulated gene modules from transcriptional profiles of CNS myeloid cells of diverse mouse models, including new tauopathy model datasets. Using these modules to interpret single-cell data from an Alzheimer's disease (AD) model, we identified microglial subsets-distinct from previously reported disease-associated microglia''-expressing interferon-related or proliferation modules. We then analyzed whole-tissue RNA profiles from human neurodegenerative diseases, including a new AD dataset. Correcting for altered cellular composition of AD tissue, we observed elevated expression of the neurodegeneration-related modules, but also modules not implicated using expression profiles from mouse models alone. We provide a searchable, interactive database for exploring gene expression in all these datasets (http://research-pub.gene.com/BrainMyeloidLandscape). Understanding the dimensions of CNS myeloid cell activation in human disease may reveal opportunities for therapeutic intervention.
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