Short hairpin RNAs (shRNAs) induce sequence-specific silencing in mammalian cells

Patrick J. Paddison, Amy A. Caudy, Emily Bernstein, Gregory J. Hannon, Douglas S. Conklin

Research output: Contribution to journalArticlepeer-review

1335 Scopus citations


RNA interference (RNAi) was first recognized in Caenorhabditis elegans as a biological response to exogenous double-stranded RNA (dsRNA), which induces sequence-specific gene silencing. RNAi represents a conserved regulatory motif, which is present in a wide range of eukaryotic organisms. Recently, we and others have shown that endogenously encoded triggers of gene silencing act through elements of the RNAi machinery to regulate the expression of protein-coding genes. These small temporal RNAs (stRNAs) are transcribed as short hairpin precursors (∼70 nt), processed into active, 21-nt RNAs by Dicer, and recognize target mRNAs via base-pairing interactions. Here, we show that short hairpin RNAs (shRNAs) can be engineered to suppress the expression of desired genes in cultured Drosophila and mammalian cells. shRNAs can be synthesized exogenously or can be transcribed from RNA polymerase III promoters in vivo, thus permitting the construction of continuous cell lines or transgenic animals in which RNAi enforces stable and heritable gene silencing.

Original languageEnglish
Pages (from-to)948-958
Number of pages11
JournalGenes and Development
Issue number8
StatePublished - 15 Apr 2002
Externally publishedYes


  • Gene silencing
  • RNAi
  • miRNA
  • shRNA
  • siRNA


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