Abstract:
:RNA interference is a powerful tool for studying gene function and for drug target discovery in diverse organisms and cell types. In mammalian systems, small interfering RNAs (siRNAs), or DNA plasmids expressing these siRNAs, have been used to down-modulate gene expression. However, inefficient transfection protocols, in particular, for primary cell types, have hampered the use of these tools in disease-relevant cellular assays. To be able to use this technology for genome-wide function screening, a more robust transduction protocol, resulting in a longer duration of the knock-down effect, is required. Here, we describe the validation of adenoviral vectors that express hairpin RNAs that are further processed to siRNAs. Infection of cell lines, or primary human cells, with these viruses leads to an efficient, sequence-specific, and prolonged reduction of the corresponding target mRNA, resulting in a reduction of the encoded protein level in the cell. For knock-down of one of the targets, GalphaS, we have measured inhibition of ligand-dependent, G-protein-coupled signaling. It is expected that this technology will prove to be of great value in target validation and target discovery efforts.
journal_name
Genome Resjournal_title
Genome researchauthors
Arts GJ,Langemeijer E,Tissingh R,Ma L,Pavliska H,Dokic K,Dooijes R,Mesić E,Clasen R,Michiels F,van der Schueren J,Lambrecht M,Herman S,Brys R,Thys K,Hoffmann M,Tomme P,van Es Hdoi
10.1101/gr.1332603subject
Has Abstractpub_date
2003-10-01 00:00:00pages
2325-32issue
10eissn
1088-9051issn
1549-5469pii
1332603journal_volume
13pub_type
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