Methods for introducing nucleic acids into mammalian cells using imidazolium lipids
    13.
    发明授权
    Methods for introducing nucleic acids into mammalian cells using imidazolium lipids 有权
    使用咪唑类脂质将核酸引入哺乳动物细胞的方法

    公开(公告)号:US06245520B1

    公开(公告)日:2001-06-12

    申请号:US09626268

    申请日:2000-07-25

    IPC分类号: A61K314164

    CPC分类号: C07D233/22 C07D233/24

    摘要: Methods for introducing nucleic acids into mammalian cells are provided which use imidazolium lipids. The imidazolium lipids have the formula: wherein R1 and R2 each independently represent a C8-C24 saturated or unsaturated hydrocarbon chain, uninterrupted or interrupted by from 1 to 3 heteroatom moieties selected from —O—, —S—, —NH— and —NR—; X represents —CH2—, —O—, —S—, —NH— or —NR—; wherein R is a lower alkyl group having from 1 to 4 carbon atoms; n is an integer of from 1 to 2; and A− is an anion.

    摘要翻译: 提供了使用咪唑鎓脂质将核酸引入哺乳动物细胞的方法。 咪唑类脂质具有下式:其中R 1和R 2各自独立地代表C 8 -C 24饱和或不饱和的烃链,不间断或被1-3个选自-O - , - S - , - NH-和-NR - ; X表示-CH 2 - , - O - , - S - , - NH-或-NR-; 其中R是具有1至4个碳原子的低级烷基; n为1〜2的整数, 而A-是阴离子。

    Methods of delivery using cationic lipids and helper lipids
    14.
    发明授权
    Methods of delivery using cationic lipids and helper lipids 失效
    使用阳离子脂质和辅助脂质的递送方法

    公开(公告)号:US06235310B1

    公开(公告)日:2001-05-22

    申请号:US09054769

    申请日:1998-04-03

    IPC分类号: A61K9127

    CPC分类号: A61K9/1272

    摘要: Methods and compositions are provided for the introduction of polyanionic molecules, in particular, nucleic acids, into mammalian cells using certain phosphatidyl ethanolamines as helper lipids in conjunction with various cationic lipids. In particular, cationic lipid-mediated transfection of mammalian cells is improved by the use of lipid carriers comprising DLPE or DiPPE and cationic lipids.

    摘要翻译: 提供了使用某些磷脂酰乙醇胺作为辅助脂质与各种阳离子脂质结合使用聚阴离子分子,特别是核酸引入哺乳动物细胞的方法和组合物。 特别地,通过使用包含DLPE或DiPPE和阳离子脂质的脂质载体来改善哺乳动物细胞的阳离子脂质介导的转染。