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FEBS Lett. 2003 Mar 27;539(1-3):111-4.

Gene silencing by adenovirus-delivered siRNA.

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  • 1Department of Nuclear Medicine, University of Ulm, Robert-Koch-Strasse 8, D-89070 Ulm, Germany.


RNA interference is the process that double-stranded RNA induces the homology-dependent degradation of cognate mRNA mediated by 21-23 nucleotide short interfering RNA (siRNA). Here, we describe a simple virus vector for efficient delivery of siRNA into mammalian cells utilizing the well-defined H1-RNA promoter and conventional adenovirus. In this pilot study, p53 was targeted by this vector. Our results demonstrate efficient and specific knock-down of p53 in breast cancer MCF-7 and lung carcinoma A549 cells and indicate a prospective application of this siRNA expressing recombinant adenovirus system in functional genomics, cancer gene therapy and virus inhibition.

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