Rna Interference Gene Silencing
Rna Interference Gene Silencing - Related Videos
01:23
RNA Interference
0 Views •
2019
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated. This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
07:27
CRISPR Interference-Based Gene Silencing: A Technique for Targeted Repression of Gene Function in Pathogenic Leptospira
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2025
This video demonstrates a CRISPR interference-based gene silencing in pathogenic Leptospira. Targeted repression of gene expression using a CRISPR/Cas system that blocks mRNA formation helps identify candidate genes for pathological and pharmacological studies.
09:06
RNA Interference in Ticks
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Cited by 49 •
2011
A method for RNA interference (RNAi) by injection of dsRNA into unfed ticks is described. RNAi is the most widely used gene-silencing technique in ticks where the use of other methods of genetic manipulation has been limited.
08:47
Gene Silencing with Morpholinos
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2023
Morpholino-mediated gene silencing is a common technique used to study roles of specific genes during development. Morpholinos inhibit gene expression by hybridizing to complementary mRNAs. Due to their unique chemistry, morpholinos are easy to produce and store, which makes them remarkably cost effective compared to other gene silencing methods. This video reviews proper experimental design when using these oligonucleotides. Following that, an explanation of morpholino microinjection...
13:10
DNA Vector-based RNA Interference to Study Gene Function in Cancer
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Cited by 26 •
2012
RNA interference (RNAi) possesses many advantages over gene knockout and has been broadly used as a tool in gene functional studies. The invention of DNA vector-based RNAi technology has made long term and inducible gene knockdown possible, and also increased the feasibility of gene silencing in vivo.
FAQs
Processing determines which RNA-guided signal enters the silencing pathway. Double-stranded RNA is converted into either small interfering RNAs or microRNAs, and these molecules direct the RNA-induced silencing complex toward messenger RNA with a complementary sequence. This molecular handoff connects the original RNA trigger to a targeted change in gene expression.
Complementarity provides the targeting logic for the pathway. Small interfering RNAs or microRNAs guide the RNA-induced silencing complex toward messenger RNA carrying a matching sequence, allowing the system to act on particular genetic messages rather than affecting gene expression indiscriminately. This sequence-specific behavior makes the mechanism useful for studying individual genes and their cellular roles.
A targeted messenger RNA can be affected in two principal ways described for this pathway. The RNA-induced silencing complex may promote its degradation, or it may block translation, preventing the message from directing protein production. These alternative outcomes both reduce expression of the associated gene, while illustrating that silencing can occur at different stages of gene use.
By reducing expression from selected genes, RNA interference can influence cellular activity without requiring broad, nonspecific changes across the genome. Its effects depend on which complementary messenger RNA is targeted and whether degradation or translation blocking occurs. This makes the pathway relevant to biological regulation and to investigations of how particular genes contribute to cell behavior.
Researchers use the sequence-specific pathway to reduce expression of a gene of interest and examine the biological consequences associated with that reduction. Because the silencing signal is directed toward complementary messenger RNA, experiments can connect changes in cellular activity with a selected genetic target. This approach helps clarify gene function in biological research.
RNA interference supports disease studies in two related ways. Researchers can use gene silencing to model diseases by reducing expression of selected genes, and they can use the resulting information to identify potential therapeutic targets. The same targeted mechanism makes it possible to examine how altered expression contributes to disease-related biological processes.
The pathway provides a way to examine how selected genes influence development and how gene regulation participates in host-pathogen interactions. Researchers can focus on sequence-specific changes in expression while studying these biological contexts, rather than treating gene regulation as a uniform cellular process. Its use therefore extends from basic development research to investigations of interactions between organisms and infectious agents.