Ultrastructural Analyses of Microglial Interactions with Synapses
Open accessAbstract
Immunohistochemical electron microscopy (EM) allows the identification of microglial cell bodies and processes, which are otherwise difficult to recognize based on their ultrastructural features. The technique has been essential in defining, at high spatial resolution, microglial interactions with neurons and synapses, thus providing, among other discoveries, important insights into their roles in synaptic pruning and stripping. In this protocol, we describe the preparation of mouse brain tissue for EM, the immunocytochemical staining against ionized calcium binding adaptor molecule 1, the imaging of microglial cell bodies and processes, and the analysis of microglial relationships with the synaptic neuropil.
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Microglia are essential for brain development and play a crucial role in preserving CNS health and maintaining homeostatic balance when challenged by infectious or inflammatory cues.
“These cells are essential for brain development and play a crucial role in preserving the health of the CNS, maintaining its homeostatic balance when challenged by infectious or inflammatory cues [21, 22].”
From Sex chromosomes and sex hormones differently shape microglial properties during normal physiological conditions in the adult mouse hippocampus (2025) · cites this paper as [22]
The Introduction (page unavailable) discusses microglial behavior in normal brain development, and the Abstract describes their roles in synaptic pruning and stripping. The paper does not establish that microglia are essential for development or say that they preserve CNS health and maintain homeostasis in response to infectious or inflammatory cues. (LLM, conf=0.78)
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Microglial interactions with synapses are modulated by visual experience
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Self-citationMicroglial P2Y12 is necessary for synaptic plasticity in mouse visual cortex
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Effects of aging and sensory loss on glial cells in mouse visual and auditory cortices
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Bobotis, B. C., Khakpour, M., Braniff, O., de Andrade, E. G., Gargus, M., Allen, M., Carrier, M., Baillargeon, J., Rangachari, M., & Tremblay, M.-È. (2025) · Journal of Neuroinflammation · doi:10.1186/s12974-025-03341-6 · Cited by 17 · see citing works
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- Authors
- Tremblay, M.-È., & Majewska, A. K.
- Affiliations
- Université Laval (CA)
- University of Rochester Medicine (US)
- Corresponding author
- Majewska, Ania K.
- Venue
- Methods in Molecular Biology
- Publisher
- Springer New York
- Published
- 2019
- Volume
- 2034
- Pages
- 83-95
- ISSN
- 1064-3745 (ISSN-L)
- 1940-6029
- PMC
- PMC7368180
- OpenAlex
- W2966019474
- Cited by
- 20
- References
- 4
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 5 · 2023: 5 · 2022: 4 · 2020: 1
- FWCI
- 1.58
- Type
- book chapter
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Methods in molecular biology (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Alcohol Abuse and Alcoholism (R01AA027111)
- National Eye Institute (R01EY019277)
- National Institute of Neurological Disorders and Stroke (R01NS114480, R21NS099973)
- National Institute of Environmental Health Sciences (P30ES001247)
- Topics
- Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
- Keywords
- microglia, synapses, synaptic pruning, stripping, Iba1
- MeSH terms
- Animals, Immunohistochemistry, Neurons, Staining and Labeling, Synapses, Microglia, Neuropil, Mice
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