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    • 87. 发明申请
    • Hyaluronidase and a Low Density Second PEG Layer on the Surface of Therapeutic-Encapsulated Nanoparticles to Enhance Nanoparticle Diffusion and Circulation
    • 透明质酸酶和治疗性包封纳米颗粒表面上的低密度第二PEG层以增强纳米颗粒扩散和循环
    • US20150342883A1
    • 2015-12-03
    • US14726770
    • 2015-06-01
    • Drexel University
    • Hao ChengHao Zhou
    • A61K9/127A61K9/50A61K31/704
    • A61K31/704A61K9/5153A61K47/6911Y10T428/2982
    • A delivery system comprising an organic nanoparticle, a hyaluronidase anchored or conjugated to the organic nanoparticle. The organic nanoparticle may be selected from a polymer-based nanoparticle, a lipid-based nanoparticle and nanoparticle formed by lipid-like molecules. In some embodiments, the hyaluronidase is covalently bound to a linker or spacer which, in turn, is anchored or covalently bound to the organic nanoparticle. The delivery system may also comprise an active pharmaceutical agent, a diagnostic agent, and/or a cellular membrane. The organic nanoparticle may further have a low density poly(ethylene glycol) layer on the surface. Methods for using the delivery system including for treating or diagnosing a disease are also provided. The organic nanoparticle provides enhanced diffusion/penetration through the extracellular matrix found in tumors, as well as increased circulation time in a human or animal body.
    • 包含有机纳米颗粒,锚定或与有机纳米颗粒缀合的透明质酸酶的递送系统。 有机纳米颗粒可以选自基于聚合物的纳米颗粒,基于脂质的纳米颗粒和由类脂分子形成的纳米颗粒。 在一些实施方案中,透明质酸酶共价结合到接头或间隔物上,接头或间隔物又被锚定或共价结合到有机纳米颗粒上。 递送系统还可以包含活性药剂,诊断剂和/或细胞膜。 有机纳米颗粒在表面上还可以具有低密度聚(乙二醇)层。 还提供了包括用于治疗或诊断疾病的递送系统的使用方法。 有机纳米粒子通过在肿瘤中发现的细胞外基质提供增强的扩散/穿透,以及增加人或动物体内的循环时间。