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    • 8. 发明申请
    • LINEAR DOUBLE-STRANDED RNA MOLECULE INTERFERING WITH DIFFERENT TARGET GENES
    • 线性双链RNA分子与不同目标基因的干扰
    • WO2009008645A2
    • 2009-01-15
    • PCT/KR2008003982
    • 2008-07-07
    • MOGAM BIOTECH RES INSTKIM MEEHYEINSHIN DUCKHYANGLEE HYEONKIM SOO INYOON YEUP
    • KIM MEEHYEINSHIN DUCKHYANGLEE HYEONKIM SOO INYOON YEUP
    • C12N15/09C12P19/34
    • C12N15/111C12N2310/111C12N2310/14C12N2310/51
    • A linear double-stranded RNA molecule, which comprises two or more consecutively or convergently linked short interfering RNAs (siRNAs) each reducing the expression of one of different target genes, and a recombinant expression vector comprising double-stranded DNA sequence expressing the linear double-stranded RNA molecule are provided. The linear double-stranded RNA molecule or the recombinant expression vector is useful for a method of reducing expression of target genes in a cell, the method comprising introducing the linear double-stranded RNA molecule or the recombinant expression vector into the cell, whereby the encoded siRNAs target different genes and reduce expression of the target genes. It was also proved that effective gene silencing activity can be induced when each siRNA unit within the linear double-stranded RNA molecule has 18 to 24 nucleotides and, additionally, the gene silencing activity is not affected by inverted orientation of an siRNA.
    • 线性双链RNA分子,其包含两个或更多个连续或趋向连接的短干扰RNA(siRNA),每个短干扰RNA减少一个不同靶基因的表达;以及重组表达载体,其包含表达线性双链RNA的双链DNA序列, 提供了双链RNA分子。 线性双链RNA分子或重组表达载体可用于减少细胞中靶基因表达的方法,该方法包括将线性双链RNA分子或重组表达载体引入细胞,由此编码 siRNA靶向不同的基因并减少靶基因的表达。 还证明当线性双链RNA分子内的每个siRNA单元具有18至24个核苷酸时,可以诱导有效的基因沉默活性,此外,基因沉默活性不受siRNA反向取向的影响。