Enhanced biologically active conjugates
    21.
    发明申请
    Enhanced biologically active conjugates 审中-公开
    增强的生物活性缀合物

    公开(公告)号:US20050260651A1

    公开(公告)日:2005-11-24

    申请号:US11105279

    申请日:2005-04-13

    摘要: The invention provides compositions and methods for making and using sterically enhanced antagonist aptamer conjugates that include a nucleic acid sequence having a specific affinity for a target molecule and a soluble, high molecular weight steric group that augments or facilitates the inhibition of binding to, or interaction with, the target molecule binding partner by the target molecule when bound to the aptamer conjugate. The present invention also provides methods and formulations for ocular delivery of a biologically active molecule by attaching a charged moiety to the biologically active molecule and delivering the biologically active molecule by iontophoresis. Iontophoresis of a biologically active molecule that is conjugated to a high molecular weight neutral moiety, in enhanced by substituting the high molecular weight neutral moiety with a charged molecule of comparable size.

    摘要翻译: 本发明提供了制备和使用空间增强的拮抗剂适体缀合物的组合物和方法,其包括对靶分子具有特异性亲和力的核酸序列和增加或促进抑制结合或相互作用的可溶性高分子量空间基团 当靶分子与适配体缀合物结合时,靶分子结合配偶体。 本发明还提供了通过将带电部分附着到生物活性分子并通过离子电渗递送生物活性分子来生物活性分子的眼部递送的方法和制剂。 通过与具有相当大小的带电分子取代高分子量中性部分来增强与高分子量中性部分缀合的生物活性分子的离子电渗疗法。

    Controlled release microparticles
    24.
    发明申请
    Controlled release microparticles 有权
    控制释放微粒

    公开(公告)号:US20070292475A1

    公开(公告)日:2007-12-20

    申请号:US11607382

    申请日:2006-12-01

    IPC分类号: A61K9/52 A61P27/02

    摘要: Formulations for controlled, sustained release of biologically active agents for the treatment of ocular disorders have been developed. These formulations are based on solid microparticles formed of the combination of biodegradable, synthetic polymers such as poly(lactic acid) (PLA), poly(glycolic acid) (PGA), and copolymers thereof. The microparticles are characterized by low burst levels and efficient drug loading and sustained release.

    摘要翻译: 已经开发了用于治疗眼部疾病的生物活性剂的受控持续释放的制剂。 这些制剂基于由可生物降解的合成聚合物如聚(乳酸)(PLA),聚(乙醇酸)(PGA)及其共聚物的组合形成的固体微粒。 微粒的特征在于低爆发水平和有效的药物负载和持续释放。

    Modification of biopolymers for improved drug delivery
    25.
    发明授权
    Modification of biopolymers for improved drug delivery 有权
    用于改善药物递送的生物聚合物的改性

    公开(公告)号:US06749865B2

    公开(公告)日:2004-06-15

    申请号:US09784402

    申请日:2001-02-15

    IPC分类号: A61K900

    摘要: A biologically active conjugate is disclosed comprising a biopolymer and a therapeutic agent joined by a disulfide bond. The conjugate, when formulated in a pharmaceutical composition with a suitable carrier, has improved in vivo stability and activity, and can be targeted to a variety of cells, tissues and organs.

    摘要翻译: 公开了包含通过二硫键连接的生物聚合物和治疗剂的生物活性缀合物。 当配制在具有合适载体的药物组合物中时,缀合物具有改善的体内稳定性和活性,并且可以靶向各种细胞,组织和器官。