Astrocyte Specific Dyes
Astrocyte Specific Dyes - 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...
02:33
Spontaneous Calcium Imaging for Compartment-Specific Dynamics in Astrocytes
0 Views •
2025
Source: Bannai, H., et. al., Dissection of Local Ca2+ Signals in Cultured Cells by Membrane-targeted Ca2+ Indicators. J. Vis. Exp. (2019)The video demonstrates fluorescence imaging to observe compartment-specific spontaneous calcium dynamics in astrocytes by sequentially monitoring calcium-sensitive proteins localized on the plasma membrane and endoplasmic reticulum.
11:19
Correlating Gene-specific DNA Methylation Changes with Expression and Transcriptional Activity of Astrocytic KCNJ10 (Kir4.1)
0 Views •
Cited by 9 •
2015
DNA methylation is capable of maintaining stable levels of gene expression as well as allowing for dynamic changes in gene expression in response to a variety of stimuli. We detail techniques that allow the study of gene-specific changes in DNA methylation and the effect of these changes on gene expression.
06:41
Astrocyte Isolation: A Method to Obtain Pure Preparation of Mouse Cortical Astrocytes
0 Views •
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
0 Views •
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.
FAQs
These dyes enter or bind cellular components that are enriched in astrocytes. Because those components are more associated with astrocytes than with neighboring neurons or other cell types, the resulting fluorescence preferentially marks astrocyte locations. This selectivity helps researchers interpret cellular organization in samples containing several nervous-system cell populations without relying only on cell shape.
After a dye associates with its cellular target, excitation causes it to emit detectable light. Imaging systems can then record where the fluorescent signal appears within cultured cells, tissue sections, or live nervous-system preparations. The signal provides a visual readout of labeled astrocyte position and structure, allowing investigators to examine patterns that are not apparent from unstained samples.
The spatial pattern of fluorescence can show where astrocytes are located and how their forms are arranged within a preparation. Researchers can examine astrocyte morphology, meaning cellular shape and structural appearance, alongside distribution across the sample. These observations support analysis of cellular organization and provide context for studying how astrocytes relate to nearby neurons.
Preferential astrocyte labeling allows investigators to compare astrocyte appearance and location with changes occurring in nervous-system preparations. The approach can support studies of development, injury, and neurological disease by making astrocyte morphology, distribution, or responses visible. It also helps place astrocyte observations within broader investigations of neuron-glia interactions and nervous-system organization.
A basic workflow begins with a suitable preparation, such as cultured cells, a tissue section, or a live nervous-system sample. The labeling reagent is then allowed to enter or bind relevant cellular components, after which the preparation is exposed to excitation and examined for emitted fluorescence. Researchers can use the resulting images to assess astrocyte structure and location.
In cultured cells and tissue sections, labeled astrocytes can be examined for morphology and distribution within the experimental sample. These measurements help investigate how astrocytes are organized relative to neurons and other cells, and they can contribute to studies of neuron-glia interactions. The same visual information also supports comparisons of nervous-system organization across biological conditions.
In live nervous-system preparations, Astrocyte Specific Dyes provide a way to visualize astrocytes while the biological sample remains a living system. Detectable fluorescence can reveal cellular placement, morphology, and observable responses in that context. This makes the approach relevant when researchers need to connect astrocyte behavior with ongoing nervous-system organization rather than examining only fixed tissue.