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    • 92. 发明授权
    • Compositions and methods to prevent AAV vector aggregation
    • 防止AAV载体聚集的组成和方法
    • US07704721B2
    • 2010-04-27
    • US11141996
    • 2005-06-01
    • John Fraser WrightGuang Qu
    • John Fraser WrightGuang Qu
    • C12N7/02
    • C12N7/00C12N2750/14111C12N2750/14151
    • Compositions and methods are provided for preparation of concentrated stock solutions of AAV virions without aggregation. Formulations for AAV preparation and storage are high ionic strength solutions (e.g. μ˜500 mM) that are nonetheless isotonic with the intended target tissue. This combination of high ionic strength and modest osmolarity is achieved using salts of high valency, such as sodium citrate. AAV stock solutions up to 6.4×1013 vg/mL are possible using the formulations of the invention, with no aggregation being observed even after ten freeze-thaw cycles. The surfactant Pluronic® F68 may be added at 0.001% to prevent losses of virions to surfaces during handling. Virion preparations can also be treated with nucleases to eliminate small nucleic acid strands on virions surfaces that exacerbate aggregation.
    • 提供组合物和方法用于制备没有聚集的AAV病毒体的浓缩储备溶液。 用于AAV制备和储存的制剂是与目的组织等渗的高离子强度溶液(例如μ〜500mM)。 高离子强度和适度渗透压的这种组合使用高价盐,例如柠檬酸钠。 使用本发明的制剂可达到6.4×1013vg / mL的AAV储备溶液,即使在十次冻融循环后也没有观察到聚集。 表面活性剂Pluronic®F68可以以0.001%添加,以防止在处理过程中损伤表面的病毒粒子。 病毒颗粒制剂也可用核酸酶处理,以消除加重聚集的病毒粒子表面上的小核酸链。
    • 99. 发明授权
    • Method for treating multi-drug resistant tumors
    • 多药耐药肿瘤治疗方法
    • US07303760B2
    • 2007-12-04
    • US10714085
    • 2003-11-14
    • Samuel ZalipskyAlberto Gabizon
    • Samuel ZalipskyAlberto Gabizon
    • A61K9/127C07F9/02C07F53/00C07F321/00
    • A61K31/407A61K47/543A61K47/6911
    • Methods for administering mitomycin C to a multi-drug resistant cell and for reducing the toxicity of the compound are described. In the methods, mitoymic C is provided in the form of a prodrug conjugate, where the drug is linked to a hydrophobic moiety, such as a lipid, through a cleavable dithiobenzyl linkage. The dithiobenzyl linkage is susceptible to cleavage by mild thiolysis, resulting in release of mitomycin C in its original form. The linkage is stable under nonreducing conditions. The prodrug conjugate can be incorporated into liposomes for administration in vivo and release of mitomycin C in response to endogenous in vivo reducing conditions or in response to administration of an exogenous reducing agent.
    • 描述了向多药耐药细胞施用丝裂霉素C并降低化合物的毒性的方法。 在该方法中,丝裂蛋白C以前体药物缀合物的形式提供,其中药物通过可裂解的二硫代苄基键连接到疏水部分,例如脂质。 二硫代苄基键易受到轻度硫解的裂解,导致丝裂霉素C以其原始形式释放。 在非还原条件下,连接是稳定的。 可以将前体药物缀合物掺入用于体内施用的体内脂质体中,并响应内源性体内还原条件或响应外源性还原剂的施用而释放丝裂霉素C.