RNA sequence-specific mediators of RNA interference
    4.
    发明授权
    RNA sequence-specific mediators of RNA interference 有权
    RNA干扰的RNA序列特异性介质

    公开(公告)号:US08790922B2

    公开(公告)日:2014-07-29

    申请号:US12897759

    申请日:2010-10-04

    摘要: The present invention relates to a Drosophila in vitro system which was used to demonstrate that dsRNA is processed to RNA segments 21-23 nucleotides (nt) in length. Furthermore, when these 21-23 nt fragments are purified and added back to Drosophila extracts, they mediate RNA interference in the absence of long dsRNA. Thus, these 21-23 nt fragments are the sequence-specific mediators of RNA degradation. A molecular signal, which may be their specific length, must be present in these 21-23 nt fragments to recruit cellular factors involved in RNAi. This present invention encompasses these 21-23 nt fragments and their use for specifically inactivating gene function. The use of these fragments (or chemically synthesized oligonucleotides of the same or similar nature) enables the targeting of specific mRNAs for degradation in mammalian cells, where the use of long dsRNAs to elicit RNAi is usually not practical, presumably because of the deleterious effects of the interferon response. This specific targeting of a particular gene function is useful in functional genomic and therapeutic applications.

    摘要翻译: 本发明涉及果蝇体外系统,其用于证明dsRNA被加工成长度为21-23个核苷酸(nt)的RNA片段。 此外,当这些21-23个片段被纯化并加回到果蝇提取物时,它们在不存在长dsRNA的情况下介导RNA干扰。 因此,这些21-23个片段是RNA降解的序列特异性介质。 必须在这21-23个片段中存在可能是其特异性长度的分子信号,以招募涉及RNAi的细胞因子。 本发明包括这些21-23个片段及其用于特异性失活基因功能的用途。 使用这些片段(或具有相同或相似性质的化学合成的寡核苷酸)使得能够靶向用于哺乳动物细胞降解的特异性mRNA,其中使用长dsRNA引发RNAi通常是不实际的,可能是因为有害影响 干扰素反应。 特定基因功能的特异性靶向在功能基因组和治疗应用中是有用的。

    Human microRNAs and methods for inhibiting same
    5.
    发明授权
    Human microRNAs and methods for inhibiting same 有权
    人类微小RNA及其抑制方法

    公开(公告)号:US08754203B2

    公开(公告)日:2014-06-17

    申请号:US13469689

    申请日:2012-05-11

    IPC分类号: C07H21/04 C07H21/02 C12N15/63

    摘要: The invention relates to isolated DNA or RNA molecules comprising at least ten contiguous bases having a sequence in a microRNA shown in SEQ ID NOs: 1-94; 281-374; 467-481; 497-522; or 549, except that up to thirty percent of the bases may be wobble bases, and up to 10% of the contiguous bases may be non-complementary. The invention further relates to modified single stranded microRNA molecules, isolated single stranded anti-microRNA molecules and isolated microRNP molecules. In another embodiment, the invention relates to a method for inhibiting microRNP activity in a cell.

    摘要翻译: 本发明涉及分离的DNA或RNA分子,其包含至少10个具有SEQ ID NO:1-94所示的微小RNA中的序列的连续碱基; 281-374; 467-481; 497-522; 或549,除了多达30%的碱基可以是摆动碱基,并且多达10%的连续碱基可以是非互补的。 本发明还涉及修饰的单链microRNA分子,分离的单链抗微RNA分子和分离的microRNP分子。 在另一个实施方案中,本发明涉及抑制细胞中microRNP活性的方法。