Current Pharmaceutical Biotechnology

Zeno Foldes-Papp
Visiting Professor of Medical Biochemistry
HELIOS Clinical Center of Emergency Medicine
Department for Internal Medicine
Alte-Koelner-Strasse 9
D-51688 Koeln-Wipperfuerth


Targeted Gene Silencing by Small Interfering RNA-Based Knock-Down Technology

Author(s): Zhang J. and Hua Z.C.

Affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, 22 Hankou Road,Nanjing, 210093 China.

Keywords: dsrna, gene silencing, rnai, sirna, mirna, shrna, knockdown, antiviral response


RNA interference (RNAi) has emerged as a powerful tool for the silencing of gene expression in animals and plants. RNAi is mediated by approximately 21-nt small interfering RNAs (siRNAs), which are originally produced from larger double stranded RNAs (dsRNAs) in vivo through the action of Dicer. Recently, many groups have reported systems designed to express siRNAs in mammalian cells through transfection of either oligonucleotides or plasmids encoding siRNAs. Although the use of siRNAs to silence genes in vertebrate cells was only reported three years ago, the emerging literature indicates that most vertebrate genes can be studied with this technology. This review summarizes some approaches to generate siRNAs, the delivery and application of siRNAs to target cells and the utility of siRNAs as analytical and potential therapeutic tools.

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Article Details

Page: [1 - 7]
Pages: 7
DOI: 10.2174/1389201043489558