Modular Functional Peptides for the Intracellular Delivery of Nanoparticles
    8.
    发明申请
    Modular Functional Peptides for the Intracellular Delivery of Nanoparticles 有权
    用于纳米颗粒细胞内递送的模块化功能肽

    公开(公告)号:US20110097797A1

    公开(公告)日:2011-04-28

    申请号:US12908601

    申请日:2010-10-20

    摘要: Described are peptides for delivery of a nanoparticle to the cytosol, the peptide comprising: (a) a nanoparticle association domain; (b) a proline-rich spacer domain; (c) an uptake domain; and (d) a vesicle escape domain comprising a non-hydrolyzable lipid moiety, wherein the spacer domain is between the nanoparticle association domain and the uptake and vesicle escape domains, and wherein the peptide, when attached to an extracellular nanoparticle, is effective to induce uptake of the nanoparticle by a cell and delivery of the nanoparticle to the cytosol of the cell. Also described are methods of delivery of a nanoparticle to the cytosol of a cell, the method comprising providing to a cell a nanoparticle attached to such a peptide. Exemplary nanoparticles include quantum dots.

    摘要翻译: 描述了用于将纳米颗粒递送到细胞溶质的肽,所述肽包含:(a)纳米颗粒缔合结构域; (b)富含脯氨酸的间隔区; (c)摄取域; 和(d)包含不可水解脂质部分的囊泡逃逸结构域,其中所述间隔区位于纳米颗粒缔合结构域和吸收和囊泡逃逸结构域之间,并且其中当连接到细胞外纳米颗粒时,该肽有效诱导 通过细胞摄取纳米颗粒并将纳米颗粒递送到细胞的胞质溶胶。 还描述了将纳米颗粒递送到细胞的细胞溶质的方法,该方法包括向细胞提供与这种肽连接的纳米颗粒。 示例性纳米颗粒包括量子点。