Cited by 109Neuroinflammation and Neurodegeneration MechanismsPhagocytosis and Immune RegulationNeuroscience and Neuropharmacology Research

An Engulfment Assay: A Protocol to Assess Interactions Between CNS Phagocytes and Neurons

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Schafer, Dorothy P., Lehrman, Emily K., Heller, Christopher T., Stevens, Beth·2014·Journal of Visualized Experiments

Abstract

Phagocytosis is a process in which a cell engulfs material (entire cell, parts of a cell, debris, etc.) in its surrounding extracellular environment and subsequently digests this material, commonly through lysosomal degradation. Microglia are the resident immune cells of the central nervous system (CNS) whose phagocytic function has been described in a broad range of conditions from neurodegenerative disease (e.g., beta-amyloid clearance in Alzheimer's disease) to development of the healthy brain (e.g., synaptic pruning)(1-6). The following protocol is an engulfment assay developed to visualize and quantify microglia-mediated engulfment of presynaptic inputs in the developing mouse retinogeniculate system(7). While this assay was used to assess microglia function in this particular context, a similar approach may be used to assess other phagocytes throughout the brain (e.g., astrocytes) and the rest of the body (e.g., peripheral macrophages) as well as other contexts in which synaptic remodeling occurs (e.g. ,brain injury/disease).

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Authors
Schafer, D. P., Lehrman, E. K., Heller, C. T., & Stevens, B.
Affiliations
Boston Children's Hospital (US)
Venue
Journal of Visualized Experiments
Published
2014-06-08
Issue
88
ISSN
1940-087X (ISSN-L)
OpenAlex
W1977005041
Cited by
108
References
29
Citations by year
2026: 5 · 2025: 14 · 2024: 11 · 2023: 23 · 2022: 15 · 2021: 10 · 2020: 11 · 2019: 8 · 2018: 5 · 2017: 2 · 2016: 3 · 2015: 1
FWCI
1.04
Type
journal article
Language
en
Open access
Locations
  • Journal of Visualized Experiments (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Richard and Susan Smith Family Foundation
  • National Institutes of Health (1f32ns066698-01a1)
  • National Institute of Neurological Disorders and Stroke (R01-NS-07100801, R01NS071008, F32-NS-066698, R01NS092578)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P30HD018655, P30HD-18655)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
microglia, phagocytosis, microglia-neuron interaction, synaptic pruning, retinal development, astrocytes, macrophages, synaptic remodeling, central nervous system
MeSH terms
Animals, Cell Communication, Central Nervous System, Neurons, Phagocytes, Synapses, Microglia, Microscopy, Confocal, Mice

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