Send to

Choose Destination
See comment in PubMed Commons below
Trends Pharmacol Sci. 2007 Apr;28(4):149-51. Epub 2007 Mar 9.

Off-target effects associated with long dsRNAs in Drosophila RNAi screens.

Author information

  • 1Whitehead Institute, 9 Cambridge Center, Cambridge, MA 02142, USA.


Evidence of off-target effects (OTEs) associated with small interfering (si)RNAs (19-29bp) in mammalian cells has existed for several years. Two recent articles demonstrate that short sequences within long double-stranded (ds)RNAs frequently cause undesirable OTEs in cultured Drosophila cells. These results reveal the potential for high false-positive rates in RNA interference (RNAi) screens using long dsRNAs and highlight the need for screening with multiple, non-overlapping long dsRNAs or siRNAs. Discovering multiple potent siRNAs with minimal off-target profiles for each target transcript will be invaluable for genome-based studies of gene function and for personalized RNAi therapeutics.

[PubMed - indexed for MEDLINE]

LinkOut - more resources

Full Text Sources

Other Literature Sources

Molecular Biology Databases

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center