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    • 7. 发明申请
    • HANGING DROP PLATE
    • 吊挂板
    • WO2010031194A1
    • 2010-03-25
    • PCT/CH2008/000391
    • 2008-09-22
    • UNIVERSITÄT ZÜRICH PROREKTORAT FORSCHUNGMORITZ, WolfgangKELM, JensCLAVIEN, Pierre-AlainHOERSTRUP, Simon Philip
    • MORITZ, WolfgangKELM, JensCLAVIEN, Pierre-AlainHOERSTRUP, Simon Philip
    • C12M3/00B01L3/00
    • B01L3/5085B01L2300/0829B01L2300/0858C12M25/01
    • The present invention relates to a hanging drop plate (1) and a method of cultivating cells or of producing molecular aggregates in at least one liquid volume (6) that adheres to a drop contact area (5) of such a hanging drop plate (1). The hanging drop plate (1) comprises a body (2) with a first surface (3) and a second surface (4) that is essentially coplanar to the first surface (3). The second surface (4) comprises at least one drop contact area (5) for adherently receiving a liquid volume (6) for cultivating cells or for producing molecular aggregates therein. The at least one drop contact area (5) is distinguished from a surrounding area (7) by a relief structure (8) that prevents spreading of the liquid volume (6) on the second surface (4) of the body (2). The hanging drop plate (1) according to the present invention is characterized in that the body (2) further comprises at least one conduit (9) that mouths into the at least one drop contact area (5) from the direction of the first surface (3) of the body (2). In the method according to the present invention, a liquid volume (6) is applied to a drop contact area (5) through a conduit (9) that mouths into the drop contact area (5) from the direction of the first surface (3) of the body (2). Cells and/or molecules can be introduced into this liquid volume (6) and parts of this liquid volume (6) can be replaced via the respective conduit (9) of the hanging drop plate (1) that is dedicated to the drop contact area (5).
    • 本发明涉及悬挂液滴板(1)和在至少一个液体体积(6)中培养细胞或生产分子聚集体的方法,所述至少一个液体体积(6)粘附到这种悬挂液滴板(1)的液滴接触区域(5) )。 悬挂液滴板(1)包括具有第一表面(3)的本体(2)和与第一表面(3)基本上共面的第二表面(4)。 第二表面(4)包括至少一个用于粘附用于培养细胞或用于在其中产生分子聚集体的液体体积(6)的滴接触区域(5)。 所述至少一个液滴接触区域(5)通过避免结构(8)与周围区域(7)区分开来,所述浮雕结构防止液体体积(6)在所述主体(2)的第二表面(4)上扩散。 根据本发明的悬挂液滴板(1)的特征在于,主体(2)还包括至少一个从第一表面的方向进入至少一个液滴接触区域(5)的导管(9) (3)。 在根据本发明的方法中,通过从第一表面(3)的方向进入到液滴接触区域(5)的导管(9)将液体体积(6)施加到液滴接触区域(5) )的身体(2)。 可以将细胞和/或分子引入该液体体积(6)中,并且该液体体积(6)的部分可以通过专用于滴液接触区域的悬滴滴板(1)的相应导管(9)来代替 (5)。
    • 10. 发明申请
    • A BIOPROCESS FOR THE GENERATION OF CELLS DERIVED FROM SPHEROID-FORMING CELLS
    • 用于产生从细胞形成细胞产生的细胞的生物学方法
    • WO2003004626A1
    • 2003-01-16
    • PCT/CA2002/001022
    • 2002-07-04
    • CARDION AGZANDSTRA, Peter, W.DANG, Stephen
    • ZANDSTRA, Peter, W.DANG, Stephen
    • C12N5/06
    • C12N5/0603C12M23/08C12M23/10C12M25/01C12M27/02C12N5/0012C12N5/0606C12N2533/76
    • The present inventors identified aggregation of embryonic stem cells and embryoid bodies (EBs) as the cause of the difficulty in generating large numbers of the embryonic stem cells (ES) cell-derived tissues. To counter this, the invention provides a novel bioprocess where aggregation of spheroid-forming cells, such as embryonic stem cells and spheroids, such as EBs is controlled, such as by encapsulation of within a matrix. As a result, EBs can be generated with high efficiency and cultured in high cell density, well-mixed systems. Well-mixed conditions facilitate measurement and control of the bulk media conditions and allow for the use of scalable bioreactor systems for clinical production of tissue. Therefore, the invention enables generation of ES cell-derived tissue on a clinical scale. The invention is also applicable to any spheroid-forming cells and other types of pluripotent cells.
    • 本发明人鉴定了胚胎干细胞和胚状体(EB)的聚集作为难以产生大量胚胎干细胞(ES)细胞衍生组织的原因。 为了解决这个问题,本发明提供了一种新颖的生物过程,其中诸如通过包封在基质内来控制球形细胞如胚胎干细胞和球体如EB的聚集。 结果,可以高效率地生成EB,并在高细胞密度,良好混合的系统中培养。 良好混合的条件有助于测量和控制大量介质条件,并允许使用可扩展的生物反应器系统来临时生产组织。 因此,本发明能够在临床规模上产生ES细胞衍生的组织。 本发明也适用于任何球形细胞和其他类型的多能细胞。