Viral Transfection
Viral Transfection - Related Videos
08:04
Neuronal Transfection Methods
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2023
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...
07:28
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...
02:44
Generation of Recombinant Adeno-Associated Virus Through Plasmid Transfection
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2026
Source: Ding, J., et al. Preparation of rAAV9 to Overexpress or Knockdown Genes in Mouse Hearts. J. Vis. Exp. (2016)This video demonstrates the production of recombinant adeno-associated virus particles through plasmid transfection in mammalian cells. It highlights the coordinated expression of Rep, Cap, and helper proteins that drive viral genome replication and capsid assembly within the nucleus.
02:06
Harvesting Adeno-Associated Virus from Transfected Mammalian Cells
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2026
Source: Rghei, A. D., et al. Production of Adeno-Associated Virus Vectors in Cell Stacks for Preclinical Studies in Large Animal Models. J. Vis. Exp. (2021)This video demonstrates the recovery of crude adeno-associated virus from transfected mammalian cells using chemical lysis and centrifugation, enabling high-yield AAV production for downstream purification and preclinical gene therapy applications.
04:21
Protein Transfection of Mouse Lung
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Cited by 1 •
2013
Transgenic mice or viral vectors have been used to increase protein expression within the lung. However, these techniques are time-consuming, technically challenging and have off-target effects that can confound results. Our protein transfection protocol uses a lipid based transfection reagent and an ultrafine microsprayer to uniformly deliver active protein to lung cells.
FAQs
The process begins when a viral vector binds receptors on the target cell surface. This interaction supports entry into the neuron, after which the vector releases its engineered nucleic-acid cargo. Receptor engagement therefore influences which cells can be reached, while intracellular processing determines whether the delivered genetic material can drive the intended expression.
Expression duration depends on the vector design and how the host cell processes the delivered genetic cargo. Some designs support temporary production, whereas others enable more sustained expression in the target cell. This distinction matters when an experiment requires short-term manipulation, prolonged labeling, or continuing control of neuronal function.
Cell-type-specific delivery allows researchers to manipulate selected neuronal populations rather than treating all cells in a preparation or brain region identically. That selectivity helps connect a genetic change with a particular neural population, supporting investigations of circuit organization, development, and disease-related processes in cultured neurons or living brain tissue.
Neurons can be challenging to manipulate with conventional approaches, so viral delivery provides a route for introducing engineered genetic material into these cells. Once delivered, the cargo can support labeling, activity measurement, functional control, or disease-related gene studies. This expands experiments from general cellular observation to targeted investigation of neural systems.
The same general delivery strategy can be used in cultured neurons and in living brain tissue, but the research question determines the desired target and genetic cargo. In culture, it can support controlled studies of neuronal properties. In living tissue, it enables examination of neural circuits, development, and neurological disease within their biological context.
Engineered genetic cargo can be selected to produce fluorescent signals or to support neuronal activity recording. Fluorescent labeling makes targeted cells distinguishable, while activity-related expression helps researchers examine neuronal function. Together, these applications connect the identity of manipulated cells with observations of their structure or activity during neuroscience experiments.
In optogenetics, delivered genetic cargo enables targeted expression used for controlling neuronal activity with light-based approaches. Other cargo can support studies of therapeutic or disease-related genes. These applications let investigators relate specific genetic manipulations to circuit behavior, disease mechanisms, or potential therapeutic strategies in neural systems.