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Updated: Jul 6, 2026

09:57
Rearing and Double-stranded RNA-mediated Gene Knockdown in the Hide Beetle, Dermestes maculatus
Published on: December 28, 2016
hTERT knockdown in human embryonic kidney cells using double-stranded RNA.
Serene R Lai1, Lucy G Andrews, Trygve O Tollefsbol
1Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA.
Methods in Molecular Biology (Clifton, N.J.)
|March 29, 2008
Summary
RNA interference (RNAi) offers a quick method for gene knockdown by targeting messenger RNA (mRNA). This study demonstrates using double-stranded RNA (dsRNA) to reduce human telomerase reverse transcriptase (hTERT) expression in cells.
Area of Science:
- Molecular Biology
- Genetics
Background:
- RNA interference (RNAi) is a natural gene silencing process.
- Generating knockout mutants can be time-consuming and difficult.
- RNAi targets specific messenger RNA (mRNA) for degradation.
Purpose of the Study:
- To describe the use of double-stranded RNA (dsRNA) for gene knockdown.
- To investigate the knockdown of human telomerase reverse transcriptase (hTERT).
Main Methods:
- Utilizing RNA interference (RNAi) with double-stranded RNA (dsRNA).
- Targeting the mRNA of human telomerase reverse transcriptase (hTERT).
- Employing dsRNA in human embryonic kidney (HEK) cells.
Main Results:
- Successfully demonstrated the RNAi effect using dsRNA.
- Achieved knockdown of human telomerase reverse transcriptase (hTERT).
Conclusions:
- RNA interference (RNAi) provides an efficient alternative to gene knockout.
- dsRNA is effective for transient gene knockdown, useful for studying short-term gene effects.
- This method allows for the study of hTERT function via gene knockdown.
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RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
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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.
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To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.

