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    • 4. 发明授权
    • dsRNA for treating viral infection
    • 用于治疗病毒感染的dsRNA
    • US09133462B2
    • 2015-09-15
    • US14069642
    • 2013-11-01
    • Arrowhead Research Corporation
    • Mark Aron LabowLarry Alexander GaitherJason Borawski
    • C12N15/113A61K31/713
    • C12N15/1137A61K31/713C12N2310/14C12N2310/314C12N2310/315C12N2310/321C12N2310/322C12N2310/3233C12N2310/3515C12N2310/531Y02A50/385C12N2310/3521
    • The invention relates to double-stranded ribonucleic acids (dsRNAs) targeting gene expression of phosphatidylinositol 4-kinase (PI4K), in particular human phosphatidylinositol 4-kinase, catalytic, beta polypeptide (PIK4CB) or human phosphatidylinositol 4-kinase, catalytic, alpha polypeptide (PIK4CA), and their use for treating infection by positive stranded RNA viruses such as hepatitis C virus (HCV). Each dsRNA comprises an antisense strand having a nucleotide sequence which is less that 30 nucleotides in length, generally 19-25 nucleotides in length, and which is substantially complementary to at least a part of the PIK4CB or PIK4CA target mRNA. A plurality of such dsRNA may be employed to provide therapeutic benefit. The invention also relates to a pharmaceutical composition comprising the dsRNA together with a pharmaceutically acceptable carrier, and including a delivery modality such as fully encapsulated liposomes or lipid complexes. The invention further includes methods for treating diseases caused by positive stranded RNA virus infection using the pharmaceutical compositions; and methods for inhibiting the propogation of positive stranded RNA viruses in and between cells.
    • 本发明涉及靶向磷脂酰肌醇4-激酶(PI4K)的基因表达的双链核糖核酸(dsRNA),特别是人磷脂酰肌醇4-激酶,催化的β多肽(PIK4CB)或人磷脂酰肌醇4-激酶,催化的α多肽 (PIK4CA),以及它们用于治疗由正链RNA病毒如丙型肝炎病毒(HCV)感染的用途。 每个dsRNA包含具有长度小于30个核苷酸的核苷酸序列的反义链,其长度通常为19-25个核苷酸,并且其与至少一部分PIK4CB或PIK4CA靶mRNA基本上互补。 可以使用多种这样的dsRNA来提供治疗益处。 本发明还涉及包含dsRNA与药学上可接受的载体的药物组合物,并且包括递送方式如完全包封的脂质体或脂质复合物。 本发明还包括使用药物组合物治疗由正链RNA病毒感染引起的疾病的方法; 以及用于抑制细胞内和细胞内的正链RNA病毒传播的方法。