Genetic Knockdown Analysis
Genetic Knockdown Analysis - Related Videos
10:04
An Overview of Genetic Analysis
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2023
An organism’s physical traits, or phenotype, are a product of its genotype, which is the combination of alleles (gene variants) inherited from its parents. To varying degrees, genes interact with each other and environmental factors to generate traits. The distribution of alleles and traits within a population is influenced by a number of factors, including natural selection, migration, and random genetic drift.In this video, JoVE introduces some of the foundational discoveries in genetics,...
11:11
Preparation of rAAV9 to Overexpress or Knockdown Genes in Mouse Hearts
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Cited by 10 •
2016
In this manuscript, a method to prepare recombinant adeno-associated virus 9 (rAAV9) vectors to manipulate gene expression in the mouse heart is described.
08:50
Genetic Screens
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2023
Genetic screens are critical tools for defining gene function and understanding gene interactions. Screens typically involve mutating genes and then assessing the affected organisms for phenotypes of interest. The process can be “forward”, where mutations are generated randomly to identify unknown genes responsible for the phenotypes, or it can be “reverse”, where specific genes are targeted for mutation to observe what phenotypes are produced.Here, JoVE reviews various types of genetic...
13:54
Preparation of Cell-lines for Conditional Knockdown of Gene Expression and Measurement of the Knockdown Effects on E4orf4-Induced Cell Death
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Cited by 3 •
2012
Contribution of the ACF chromatin remodeling factor to E4orf4-induced cell death was measured. The protocol includes selection of cell clones in which doxycycline treatment induces conditional knockdown of the ACF subunits Acf1 and SNF2h, and use of the DAPI assay to measure E4orf4-induced cell death in the inducible cell lines.
10:09
Rapid Genetic Analysis of Epithelial-Mesenchymal Signaling During Hair Regeneration
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Cited by 10 •
2013
Tissue-specific analysis of a hair follicle regeneration model using lentivirus to mediate gain- or loss-of-function.
FAQs
These reagents act at the messenger RNA stage, but their effects can be assessed through two related outcomes: promoting target RNA degradation or preventing its translation. Reduced messenger RNA activity should lower production of the corresponding protein. Comparing these molecular consequences with neuronal or cellular changes helps connect the targeted gene to its functional role.
A reduced, rather than absent, gene signal allows researchers to examine partial effects and time-limited consequences. This distinction can be important when complete gene loss would obscure graded biological responses. In neuroscience, preserving some gene activity supports analysis of how different expression levels influence neuronal development, synaptic signaling, network activity, or disease-related pathways.
Targeting messenger RNA creates a connection between gene expression and protein availability without requiring a permanent change to the gene itself. If lowering the transcript also changes a neuronal phenotype, such as development, synaptic signaling, or network activity, the result supports a functional relationship between the gene and that process.
Researchers compare treated cells or animals with appropriate controls and then examine differences in the selected biological outcomes. Measurements can address neuronal development, synaptic signaling, network activity, or disease-related pathways, while changes in the corresponding protein provide molecular context. This comparison helps distinguish effects associated with reducing the target gene from baseline observations.
The method is useful for functional gene studies and target validation across cellular or animal neuroscience models. Researchers can reduce expression and evaluate consequences for neuronal development, synaptic communication, network activity, or disease-related pathways. These applications help determine whether a gene contributes to a process and whether it merits further investigation as a therapeutic target.
Knockdown experiments can test whether reducing a gene-associated pathway produces a relevant biological effect in cells or animals. Because the approach supports partial and time-limited changes, researchers can examine outcomes without committing to permanent gene elimination. Evidence from these comparisons may assist target validation and the evaluation of therapeutic strategies linked to disease-related pathways.