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    • 4. 发明授权
    • Methods for microvesicle isolation and selective removal
    • 微泡分离和选择性去除方法
    • US09005888B2
    • 2015-04-14
    • US13918260
    • 2013-06-14
    • System Biosciences, LLC
    • Travis John AntesKevin KweiFangting Wu
    • C12Q1/00C12Q1/02G01N1/34C12Q1/68G01N33/50G01N33/52C12M1/00
    • G01N1/34C12M29/26C12Q1/6895C12Q2600/158C12Q2600/178G01N33/5002G01N33/52C12Q1/6806C12Q2523/32C12Q2563/161
    • The invention relates to compositions and methods for isolation of microvesicles produced by mammalian cells. These microvesicles, known as extracellular microvesicles or circulating microvesicles, are isolated from sample materials such as body fluids, or from cell culture media that has been used to culture and maintain mammalian cells in vitro. The isolation of microvesicles as described herein results in purification and concentration of the microvesicles.The invention also provides related methods for producing blood serum and/or blood plasma that is free of detectable microvesicles, largely depleted of microvesicles, or has reduced concentration of microvesicles compared to the blood serum or blood plasma starting material (collectively termed “microvesicle-depleted”). The generation of microvesicle-depleted blood serum or plasma is critical for use in experimental systems where it is desirable to use a cell culture media that does not contain endogenous microvesicles, or has been depleted of endogenous microvesicles, from the source material.
    • 本发明涉及用于分离由哺乳动物细胞产生的微泡的组合物和方法。 称为细胞外微泡或循环微泡的这些微泡从样品材料如体液中分离出来,或从用于在体外培养和维持哺乳动物细胞的细胞培养基中分离。 如本文所述分离微泡导致微泡的纯化和浓缩。 本发明还提供了相对于血清和/或血浆的相关方法,其不含可检测的微泡,大部分耗尽微泡,或者与血清或血浆起始物质(统称为“微泡消耗的 “)。 对于在实验系统中使用的微泡结蛋白血清或血浆的产生是至关重要的,其中期望使用不含有内源性微泡或已经从源材料中消耗内源性微泡的细胞培养基。