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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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Analysis of Nonhomologous End Joining and Homologous Recombination Efficiency in HEK-293T Cells Using GFP-Based Reporter Systems

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RNA interference in mammalian cell systems.

Patrick J Paddison¹

¹Cold Spring Harbor Fellows Program, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11771, USA. paddison@cshl.edu

Current Topics in Microbiology and Immunology

|February 14, 2008

Summary

This summary is machine-generated.

RNA interference (RNAi) is a common lab technique for gene silencing in mammals. Advances in double-stranded RNA (dsRNA) and genome-scale libraries enable large-scale loss-of-function screens.

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Area of Science:

Molecular Biology
Genetics
Biotechnology

Background:

RNA interference (RNAi) is a conserved biological process in which RNA molecules inhibit gene expression or translation.
RNAi has become a standard tool in molecular biology laboratories for gene silencing in various organisms.
The development of efficient RNAi triggers and screening platforms has accelerated its application in mammalian systems.

Purpose of the Study:

To review the key features and applications of RNA interference (RNAi) in mammalian systems.
To highlight the advancements in RNAi technology, including dsRNA triggers and genome-scale libraries.
To discuss the implications of RNAi for large-scale loss-of-function screens in mammals.

Main Methods:

Review of existing literature on RNA interference in mammalian cells.
Discussion of the design and application of double-stranded RNA (dsRNA) molecules as RNAi triggers.
Analysis of the development and use of genome-scale libraries for RNAi screening.

Main Results:

RNA interference is a robust method for gene silencing in mammalian cells.
Refined dsRNA triggers and genome-scale libraries have enabled comprehensive loss-of-function screens.
These advancements facilitate the study of gene function on a genome-wide scale in mammals.

Conclusions:

RNA interference is a powerful and increasingly routine technique for functional genomics in mammalian systems.
The evolution of RNAi tools has paved the way for large-scale genetic screens, advancing our understanding of mammalian biology.
Continued refinement of RNAi technologies promises further breakthroughs in gene function analysis.