A peptidomimetic siRNA transfection reagent for highly effective gene silencing Journal Article


Authors: Utku, Y.; Dehan, E.; Ouerfelli, O.; Piano, F.; Zuckermann, R. N.; Pagano, M.; Kirshenbaum, K.
Article Title: A peptidomimetic siRNA transfection reagent for highly effective gene silencing
Abstract: RNA interference (RNAi) techniques hold forth great promise for therapeutic silencing of deleterious genes. However, clinical applications of RNAi require the development of safe and efficient methods for intracellular delivery of small interfering RNA (siRNA) oligonucleotides specific to targeted genes. We describe the use of a lipitoid, a cationic oligopeptoid-phospholipid conjugate, for non-viral transfection of synthetic siRNA oligos in cell culture. This peptidomimetic delivery vehicle allows for efficient siRNA transfection in a variety of human cell lines with negligible toxicity and promotes extensive downregulation of the targeted genes at both the protein and the mRNA level. We compare the lipitoid reagent to a standard commercial transfection reagent. The lipitoid is highly efficient even in primary IMR-90 human lung fibroblasts in which other commercial reagents are typically ineffective. © The Royal Society of Chemistry 2006.
Keywords: genetics; comparative study; methodology; metabolism; cells, cultured; lipid; small interfering rna; rna, small interfering; rna interference; hela cell; cell line, tumor; hela cells; transfection; physiology; drug delivery systems; gene expression regulation; chemistry; genetic transfection; cell culture; tumor cell line; fibroblast; fibroblasts; lipids; gene silencing; phosphatidylethanolamine; phosphatidylethanolamines; oligopeptides; liposome; drug delivery system; liposomes; cation; oligopeptide; cations; lipofectamine
Journal Title: Molecular BioSystems
Volume: 2
Issue: 6
ISSN: 1742-206X
Publisher: Royal Society of Chemistry  
Date Published: 2006-06-01
Start Page: 312
End Page: 317
Language: English
DOI: 10.1039/b603229j
PUBMED: 16880950
PROVIDER: scopus
DOI/URL:
Notes: --- - "Cited By (since 1996): 19" - "Export Date: 4 June 2012" - "Source: Scopus"
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  1. Ouathek Ouerfelli
    100 Ouerfelli