Gfp Glial Extensions
Gfp Glial Extensions - Related Videos
10:53
Visualizing the Live Drosophila Glial-neuromuscular Junction with Fluorescent Dyes
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Cited by 5 •
2009
We described structural features of the Glia-neuromuscular synapses in a novel Inside-out tissue preparation of live fly larvae using fluorescent dyes with confocal microscopy. We labeled live neuron terminals with fluorescent primary antibodies to HRP, and also visualized the perisynaptic space with fluorescent Dextrans.
09:12
Live Imaging of Glial Cell Migration in the Drosophila Eye Imaginal Disc
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Cited by 6 •
2009
Here we describe a protocol to examine the migration of glial cells into the developing Drosophila eye using live microscopic analysis paired with GFP tagged glial cells.
01:04
Glial Cells
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2025
Overview Glial cells are one of the two main types of cells in the nervous system. Glia cells comprise astrocytes, oligodendrocytes, microglia, and ependymal cells in the central nervous system, and satellite and Schwann cells in the peripheral nervous system. These cells do not communicate via electrical signals like neurons do, but they contribute to virtually every other aspect of nervous system function. In humans, the number of glial cells is roughly equal to the number of neurons in the...
28:40
Proboscis Extension Response (PER) Assay in Drosophila
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Cited by 120 •
2007
Proboscis extension response or PER is a taste behavior assay that has been used in flies as well as in honeybees. When the proboscis makes contact with an attractive substance, the fly extends its proboscis to consume the substance. Solutions of various sugars are very attractive to the fly.
03:32
Using a Macrophage Conditioned Medium to Promote Neuron Extensions
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2025
This video demonstrates an assay for promoting the growth of neuron projections known as neurite outgrowth using the macrophage-conditioned medium. Co-culture neurons and macrophages with cAMP and harvest the macrophage-derived conditioned medium. Growing the neurons with the conditioned medium promotes neurite outgrowths. These outgrowths are fluorescently labeled and visualized using a fluorescence microscope.
FAQs
Visibility depends on both GFP production in glial cells and optical excitation of the resulting chromophore. Once excited, the chromophore emits green light that fluorescence microscopy records, making small processes and branching patterns distinguishable from surrounding cellular structures. This optical sequence links molecular labeling to measurable features of glial architecture.
The fluorescent chromophore is the signal-generating component within GFP. Its formation allows excitation to produce green emission, supplying the contrast needed to follow fine extensions and branching. As a result, investigators can examine changes in cellular structure directly through fluorescence images instead of relying only on whether glial cells are present.
Branching patterns provide a morphological readout of glial organization and its relationship with neurons. If a compound, receptor activity, or disease-related condition changes extension structure, microscopy can reveal that effect at the level of cellular architecture. This connects pharmacological or pathological influences with neuroglial function rather than considering neuronal signaling in isolation.
Researchers can examine fluorescent glial morphology under conditions involving particular compounds or receptor activity. Extension and branching patterns provide evidence of whether those conditions are associated with altered glial architecture or interactions with neurons. This application supports pharmacological studies of how signaling-related interventions affect the cellular environment surrounding neural cells.
A practical workflow begins by obtaining GFP expression in the glial cells of interest, followed by excitation that produces chromophore emission. Fluorescence microscopy then captures the resulting signal and permits inspection of fine extensions and branching patterns. The images can be used to assess glial architecture and its relationship with nearby neuronal structures.
The resulting fluorescent patterns can show whether experimental conditions are associated with changes in glial morphology or interactions with neurons. In pharmacology, those observations help assess effects linked to compounds or receptor activity, while disease-related conditions provide another context for comparison. The outcome is a cellular view of altered neuroglial function, not only a general measure of neural signaling.