Stereotactic Viral Injection
Stereotactic Viral Injection - Related Videos
08:33
Development of an Alpha-synuclein Based Rat Model for Parkinson's Disease via Stereotactic Injection of a Recombinant Adeno-associated Viral Vector
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Cited by 12 •
2016
This manuscript describes how viral vector-mediated local gene delivery provides an attractive way to express transgenes in the central nervous system. The protocol outlines all crucial steps to perform a viral vector injection in the substantia nigra of the rat to develop a viral vector-based animal model for Parkinson's disease.
07:54
Applying Stereotactic Injection Technique to Study Genetic Effects on Animal Behaviors
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Cited by 15 •
2015
Stereotactic injection of lentiviruses expressing cDNAs or shRNAs can modulate gene expression in specific brain areas of mice. Here, we present a protocol to combine stereotactic injections with behavioral tasks, such as the Open Field Test (OFT) and the Forced Swim Test (FST).
08:47
Intracranial Injection of Adeno-associated Viral Vectors
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Cited by 56 •
2010
Here we present the intracranial injection of AAV vectors for fluorescent labeling of neurons and glia in the visual cortex.
03:58
Stereotaxic Injection of Viral Vectors for Glial Cell Reprogramming in a Mouse Model
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2025
Source: Pereira, M. et. al., In Vivo Direct Reprogramming of Resident Glial Cells into Interneurons by Intracerebral Injection of Viral Vectors. J. Vis. Exp. (2019)This video demonstrates stereotaxic injection of an adeno-associated virus into the cerebral cortex of a transgenic mouse to deliver Cre-dependent neuronal reprogramming and fluorescent reporter genes into glial cells.
04:15
Stereotactic Microinjection of a Viral Vector for Gene Manipulation in a Mouse Pup Striatum
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2025
Source: Chen, S., et al., Stereotaxic Surgery for Genetic Manipulation in Striatal Cells of Neonatal Mouse Brains. J. Vis. Exp. (2018)This video demonstrates the stereotaxic injection of a viral vector encoding Cre recombinase and green fluorescence protein or GFP into the striatum of a genetically modified mouse pup to achieve gene manipulation by excising a loxP-flanked STOP cassette, activating red fluorescence protein or RFP as a reporter.
FAQs
Three-dimensional coordinates identify the intended anatomical site by specifying its position within the brain. Their accuracy determines whether the vector suspension reaches the region needed for a circuit or gene-function experiment. Even when the injection is technically successful, coordinate errors can shift expression away from the intended structure, complicating anatomical interpretation and reducing the precision of conclusions.
After deposition, viral vectors enter nearby cells and drive expression of an introduced genetic sequence. The resulting expression can make cells fluorescent for anatomical analysis or support targeted manipulation of neuronal activity. Because expression occurs near the deposition site, the relationship between vector placement, affected cells, and observed neural effects must be considered when interpreting experimental results.
Injection volume influences how much vector suspension is deposited at the target, while tissue damage can alter the local neural environment and affect experimental interpretation. Controlling both variables helps distinguish effects associated with the introduced genetic sequence from effects caused by the delivery procedure itself. Consistent control also improves reproducibility when comparing animals or experimental groups.
A typical workflow establishes the target using a stereotactic frame or apparatus, aligns the delivery system with three-dimensional coordinates, and uses a fine needle to deposit a measured vector suspension. The procedure then requires attention to placement, volume, and tissue disruption so that the resulting expression remains anatomically interpretable and comparable across experiments.
This approach supports several complementary neuroscience applications. Viral vectors can produce fluorescent labeling for locating targeted cells, enable circuit tracing to examine anatomical connections, or support targeted manipulation of neuronal activity. The same precision also allows researchers to create models of neurological disease, linking region-specific genetic expression with circuit organization or disease-related investigation.
The method links genetic intervention to anatomy by restricting vector delivery to a defined brain region. Expression of the introduced sequence can then be examined alongside fluorescent labeling, circuit tracing, or changes in neuronal activity. This regional specificity helps researchers interpret gene function within organized neural circuits rather than treating the brain as a uniform system.