Microglial Synaptic Pruning
Microglial Synaptic Pruning - Related Videos
07:41
Quantification of Microglial Engulfment of Synaptic Material Using Flow Cytometry
0 Views •
Cited by 1 •
2024
Here we present two protocols to quantify microglial engulfment of vGLUT1-positive synapses and pHRodo Red-labeled crude synaptosomes using flow cytometry.
08:46
Studying Synaptic Vesicle Pools using Photoconversion of Styryl Dyes
0 Views •
Cited by 18 •
2010
FM dyes have been of invaluable help in the understanding of synaptic dynamics. FMs are normally followed under the fluorescent microscope during different stimulation conditions. However, photoconversion of FM dyes combined with electron microscopy allows the visualization of distinct synaptic vesicle pools, among other ultrastructure components, in synaptic boutons.
02:42
In Vivo Two-Photon Imaging of Microglial Dynamics in the Mouse Hippocampus
0 Views •
2025
Source: Kamei, R., et. al., In Vivo Chronic Two-Photon Imaging of Microglia in the Mouse Hippocampus. J. Vis. Exp. (2022)The video demonstrates the setup and imaging process for in vivo two-photon microscopy of microglial dynamics in the hippocampal CA1 (Cornu ammonis 1) and dentate gyrus, ensuring optimal optical alignment and structural integrity assessment.
01:31
Magnetic Hyperthermia-Induced Cell Damage in Murine Microglial Cells
0 Views •
2025
Take adhered murine microglial cells in a multiwell plate.Add polyacrylic acid-coated magnetic nanoparticles (MNPs) to the test well, leaving another well untreated as a control.Incubate the cells to allow MNP uptake via endocytosis, enabling their internalization.Wash with buffer to remove unbound MNPs.Add an enzyme solution to detach the cells.Transfer the detached cells to tubes and centrifuge to pellet them.Discard the supernatant, resuspend the pellet in basal media, and transfer the...
04:28
Two-Photon Microscopy for Studying Microglial Process Attraction Toward a Compound in a Mouse Brain Slice
0 Views •
2025
Source: Etienne, F. et al. Two-photon Imaging of Microglial Processes' Attraction Toward ATP or Serotonin in Acute Brain Slices. J. Vis. Exp. (2019)This video demonstrates the use of two-photon microscopy to study the attraction of microglial processes toward an injected compound in brain slices. It provides an overview of preparing mouse brain slices, injecting a chemoattractant test compound, and imaging fluorescently labeled microglia to visualize their responses.
FAQs
Microglia can use neuronal activity and complement proteins as cues when deciding which synaptic elements to target. C1q and C3 are specifically identified as participating in this recognition and remodeling process, helping distinguish connections that may be weak, excess, or damaged. This selectivity supports circuit refinement rather than indiscriminate loss.
The balance of pruning is critical. If removal is excessive, neural circuits may lose important connectivity; if it is insufficient, excess or damaged synaptic elements may remain. Either imbalance can disrupt brain function, which makes pruning regulation a central question in neuroscience research rather than treating synapse removal as inherently beneficial.
During development, pruning contributes to circuit maturation and efficient connectivity, while in adulthood it helps maintain established networks. This developmental-to-maintenance distinction matters because the same cellular process may be studied in different contexts: researchers can ask how circuits are refined early in life and how their stability is preserved later.
Research on Microglial Synaptic Pruning can examine how microglia, neuronal activity, and complement proteins interact during synaptic remodeling. It can also compare conditions associated with excessive or insufficient removal. These lines of investigation connect cellular mechanisms with circuit-level consequences, providing a framework for studying how altered pruning may affect brain function.
In neuroscience, this topic is especially relevant to neurodevelopmental and neurodegenerative disorders because abnormal pruning may help explain disrupted neural networks. Studying the process does not only ask whether synapses are removed; it also examines whether the amount or selectivity of remodeling is compatible with efficient connectivity, learning, and long-term circuit maintenance.
The research value extends to potential network-restoration strategies. By clarifying how microglia recognize and remove synaptic elements, investigators may identify ways to support healthier remodeling when pruning is excessive or insufficient. The intended outcome is not simply more or less pruning, but restoration of neural networks that function with appropriate connectivity and stability.