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. 1998 Apr 15;26(8):1934–1938. doi: 10.1093/nar/26.8.1934

Additive antisense effects of different PNAs on the in vitro translation of the PML/RARalpha gene.

L Mologni 1, P leCoutre 1, P E Nielsen 1, C Gambacorti-Passerini 1
PMCID: PMC147505  PMID: 9518485

Abstract

The potential use of peptide nucleic acid (PNA) as a sequence-specific inhibitor of RNA translation is investigated in this report. Three different regions of the PML/RARalpha oncogene, including two AUG potential start codons, were studied as targets of translation inhibition by antisense PNA in a cell-free system. A PNA targeted to the second AUG start codon, which was shown previously to be able to suppress in vitro translation from that site completely, was used alone or in combination with another PNA directed to the first AUG, and a third PNA within the 5'-untranslated region (5'-UTR) of mRNA. When used alone, no PNA was able to completely block the synthesis of the PML/RARalpha protein. The 5'-UTR PNA was the most potent translation inhibitor when used as single agent. However, a near complete (>/=90%) specific inhibition of the PML/RARalpha gene was obtained when the three PNAs were used in combination, thus obtaining an additive antisense effect.

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Selected References

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