Yoichi R Fuji

Nagoya City University, Nagoya, Aichi, Japan

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Publications (1)1.55 Total impact

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    ABSTRACT: RNA interference (RNAi) has been reported to be post-transcriptional gene silencing (PTGS) by approximately 500 nucleotide-(nt)-long double-stranded (ds) RNA that specifically targets homologous sequences of messenger RNA. In this report, we describe inhibition of HIV-1 transcription by synthetic dsRNAs constructed with mutated nef genes (nef dsRNAs) derived from long-term non-progressors (LTNPs) using cotransfection of the target gene-expressing plasmid and dsRNA. The effects of nef dsRNAs were examined with luciferase (Luc) reporter which is combined with the HIV-1 (SF2) LTR in persistently HIV-1-infected T cell and macrophage cell lines. At 48 hr, a defective nef dsRNA (556 nt) suppressed Luc activity more potently than did SF2 full-length nef dsRNA (744 nt), suggesting that approximately 500 nt-long nef dsRNA could interfere with the HIV-1 transcription.
    Microbiology and Immunology 02/2002; 46(11):809-17. · 1.55 Impact Factor