Astrocyte Morphology
Astrocyte Morphology - Related Videos
04:19
Visualizing Astrocyte Morphology Using Fluorescent Dye Iontophoresis in a Fixed Mouse Brain Slice
0 Views •
2025
Source: Moye, S. L., et.al. Visualizing Astrocyte Morphology Using Lucifer Yellow Iontophoresis. J. Vis. Exp. (2019). This video demonstrates the use of fluorescent dye iontophoresis to study astrocyte morphology in fixed brain slices. It details the piercing of the astrocyte soma with an electrode to deliver an anionic, hydrophilic dye into the cytoplasm under a low-voltage current, enabling the dye to diffuse and label the soma and branches. Confocal microscopy is then used to visualize the...
07:38
Visualizing Astrocyte Morphology Using Lucifer Yellow Iontophoresis
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Cited by 23 •
2019
Astrocytes are morphologically complex cells, exemplified by their multiple processes and bushy territories. To analyze their elaborate morphology, we present a reliable protocol to perform intracellular Lucifer yellow iontophoresis in lightly fixed tissue.
06:41
Astrocyte Isolation: A Method to Obtain Pure Preparation of Mouse Cortical Astrocytes
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2023
In this video, we describe the method to obtain a pure preparation of astrocytes from newly born mice.
11:25
Isolation and Culture of Mouse Cortical Astrocytes
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Cited by 460 •
2013
Astrocytes have been recognized to be versatile cells participating in fundamental biological processes that are essential for normal brain development and function, and central nervous system repair. Here we present a rapid procedure to obtain pure mouse astrocyte cultures to study the biology of this major class of central nervous system cells.
11:08
The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions
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Cited by 26 •
2016
This protocol describes the indirect neuron-astrocyte coculture for compartmentalized analysis of neuron-glia interactions.
FAQs
Actin and intermediate-filament networks provide the structural framework for astrocyte processes. Their organization supports the formation and maintenance of fine peripheral branches and perivascular endfeet, allowing cellular architecture to adapt as astrocytes respond to developmental signals, neuronal activity, or tissue injury. Examining these structural elements therefore links visible morphology with changing cellular roles.
Process complexity, territory, and cell-body distribution offer complementary structural readouts. Complexity captures how elaborately branches are organized, territory describes the space associated with a cell, and body distribution shows how astrocytes are positioned within tissue. Together, these measurements can help distinguish astrocyte subtypes and evaluate maturation or reactive gliosis without relying on one shape feature alone.
Spatial organization is important because astrocytes occupy relationships with neurons, blood vessels, and the extracellular environment. Features such as territory, branching, and perivascular endfeet show how cellular architecture is arranged across these interfaces. Mapping those relationships helps investigators interpret how structural variation may accompany differences in synaptic regulation, blood-brain barrier support, or neuroinflammatory context.
An imaging-based analysis can record astrocyte size, shape, branching, process complexity, territory, and cell-body distribution. Investigators can then use quantitative morphometry to compare these features across cells, developmental states, or injury-related conditions. The resulting measurements turn cellular architecture into data that can be related to maturation, reactive gliosis, and brain function or disease.
It is especially informative when a study asks whether astrocytes have matured, entered a reactive gliosis state, or changed their structural relationships during tissue injury. Morphometric results can also support investigations of synaptic regulation, blood-brain barrier support, and neuroinflammation, making morphology a bridge between cell structure and disease-relevant processes.
By relating measured architecture to the interfaces astrocytes maintain, investigators can move from descriptive images to functional questions. Branching and territory provide structural context for synaptic regulation, while perivascular endfeet provide context for blood-brain barrier support. This framework also helps place injury-associated or inflammatory changes within broader models of brain dysfunction and disease.