Gfp-transfected Neurons
Gfp-transfected Neurons - Related Videos
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Neuronal Transfection Methods
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Transfection - the process of transferring genetic material into cells - is a powerful tool for the rapid and efficient manipulation of gene expression in cells. Because this method can be used to silence the expression of specific proteins or to drive the expression of foreign or modified proteins, transfection is an extremely useful tool in the study of the cellular and molecular processes that govern neuron function. However, mature neurons have a number of properties that make them...
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Antibody Transfection into Neurons as a Tool to Study Disease Pathogenesis
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A rapid approach to investigate interactions and effects on molecular mechanisms related to the presence of antibodies in an intracellular environment is described. The method involves transfection of antibodies into live cells using a non-covalent complex formation based on a lipid formulation. The technique is adaptable to immortalized cell lines and primary cells.
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Imaging Calcium Responses in GFP-tagged Neurons of Hypothalamic Mouse Brain Slices
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In this protocol, we update recent progress in imaging Ca2+ signals of GFP-tagged neurons in brain tissue slices using a red fluorescent Ca2+ indicator dye.
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Preparation of Gene Gun Bullets and Biolistic Transfection of Neurons in Slice Culture
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We describe a method for preparing DNA coated gold bullets and demonstrate the use of such bullets to biolistically transfect neurons in cultured hippocampal slices.
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An Introduction to Transfection
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2023
Transfection is the process of inserting genetic material, such as DNA and double stranded RNA, into mammalian cells. The insertion of DNA into a cell enables the expression, or production, of proteins using the cells own machinery, whereas insertion of RNA into a cell is used to down-regulate the production of a specific protein by stopping translation. While the site of action for transfected RNA is the cytoplasm, DNA must be transported to the nucleus for effective transfection. There, the...
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After DNA encoding GFP enters a neuron, the cell’s machinery transcribes that gene into RNA and translates the resulting message into GFP protein. When the cell is illuminated with appropriate excitation light, the protein produces green fluorescence. This sequence connects the molecular event of gene expression with the visible signal used for neuronal observation.
Green fluorescence identifies neurons in which the introduced GFP sequence has produced detectable protein. This allows researchers to distinguish labeled cells from other cells in a culture or tissue sample. The signal therefore serves as a practical marker for locating transfected neurons before examining their neurites, overall morphology, or responses to experimental treatments.
GFP labeling makes neuronal morphology visible, including the shape of the cell and the extension of neurites. Because labeled structures can be observed through their fluorescence, researchers can examine how neuronal form and connectivity-related features appear within cultures or tissue. This provides a visual basis for studying structural aspects of neuronal development.
A fluorescent label allows the same experimentally identified neuronal population to be followed while researchers assess the effects of a treatment. Observations can focus on changes related to neuronal development and connectivity, using the visible GFP signal to locate and examine the relevant cells. The approach links treatment conditions with observable neuronal structure and behavior.
The workflow begins by introducing DNA encoding GFP into neurons. The cells then use their own machinery to transcribe and translate the introduced gene, producing GFP protein. Researchers illuminate the cells with appropriate excitation light and examine the resulting green signal to identify labeled neurons, observe their morphology, and follow them in culture or tissue.
The essential components are neurons, DNA encoding GFP, the cellular machinery needed for gene expression, and illumination with appropriate excitation light. The DNA provides the labeling information, while transcription and translation generate the fluorescent protein. Suitable illumination then makes the protein’s green signal visible for neuronal identification and structural analysis.
These labeled neurons can be examined in neuronal cultures or within tissue, allowing researchers to follow fluorescently marked populations in different experimental settings. In either context, the signal supports identification of transfected cells and visualization of neurites and morphology. Researchers can also use the labeled population when evaluating neuronal development, connectivity, or treatment effects.
By making neuronal morphology and neurites visible, GFP labeling provides structural information relevant to how neurons develop and connect. Researchers can follow labeled populations and compare their observable features under experimental conditions. This makes the approach useful for investigating connectivity-related changes alongside broader questions about neuronal development and behavior.