Cited by 48Neuroinflammation and Neurodegeneration MechanismsNeurogenesis and neuroplasticity mechanismsMultiple Sclerosis Research Studies

Isolation and Phenotyping of Adult Mouse Microglial Cells

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Grabert, Kathleen, McColl, Barry W.·2018·Methods in Molecular Biology

Abstract

Microglia are the resident macrophages of the central nervous system parenchyma and fulfill crucial roles in brain development, homeostasis, and inflammation. The isolation of a pure microglia population from brain tissue enables the examination of microglial phenotypes without the interference of other cell populations. Microglial extractions from the neonatal brain have been described in various protocols, yet the more established and complex adult mouse brain poses a greater challenge. Here we describe a refined protocol including enzymatic and mechanical dissociation of adult mouse brain tissue and removal of myelin by Percoll density gradient. Microglial cells were subsequently extracted by an immunomagnetic approach. This isolation procedure enables the use of functionally viable cells for various applications such as cell culture, flow cytometry, functional assays including bacteria- or bead-based phagocytosis, stimulation assays, and transcriptome profiling techniques such as qRT-PCR and microarray/RNA sequencing.

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Crossref · 10.1007/978-1-4939-7837-3_7

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  • Many widely used protocols for microglial isolation continue to include enzymatic digestion, likely because some experimental conditions require greater yield.

    “Some experimental conditions may dictate the need for greater yield, especially for older or less-sensitive approaches (including many older bulk RNA-sequencing (RNA-seq) studies or protein-based analyses), which is likely why many widely used and widely cited protocols for microglial isolation continue to include enzymatic digestion4,63,64.”

    From Dissection of artifactual and confounding glial signatures by single-cell sequencing of mouse and human brain (2022) · cites this paper as [63]

    The Introduction describes a microglial-isolation protocol that uses enzymatic dissociation, and Notes (Note 3) reports that digestion improved microglial yield. Our copy does not establish that many widely used protocols include digestion, or that a need for greater yield explains their use of it, particularly for older RNA-seq or protein-based analyses. (LLM, conf=0.83)

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Authors
Grabert, K., & McColl, B. W.
Affiliations
Roslin Institute (GB)
Corresponding author
Grabert, Kathleen
Venue
Methods in Molecular Biology
Published
2018
Volume
1784
Pages
77-86
ISSN
  • 1064-3745 (ISSN-L)
  • 1940-6029
OpenAlex
W2804367279
Cited by
48
References
32
Citations by year
2026: 2 · 2025: 2 · 2024: 7 · 2023: 13 · 2022: 9 · 2021: 11 · 2020: 3 · 2018: 1
FWCI
8.46
Type
book chapter
Language
en
Open access
Locations
  • Methods in molecular biology (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
Funders
  • Directorate for Biological Sciences
  • Medical Research Council (MR/L003384/1, MR/K001744/1)
  • Biotechnology and Biological Sciences Research Council (BBS/E/D/10002071, BB/J4243/1, BB /J004332/1)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
microglia, adult mouse brain, Percoll density gradient, magnetic cell separation, phagocytosis
MeSH terms
Animals, Brain, Cell Separation, Flow Cytometry, Myelin Sheath, Phagocytosis, Povidone, Silicon Dioxide, Microglia, Cell Culture Techniques, Mice

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