NEURITE OUTGROWTH PROMOTION KIT AND USE THEREFOR

    公开(公告)号:EP4349970A1

    公开(公告)日:2024-04-10

    申请号:EP22811395.7

    申请日:2022-05-27

    申请人: Keio University

    摘要: There are provided a neurite outgrowth promotion kit containing a γ-secretase inhibitor or a GADD45G expression vector, in which the neurite outgrowth promotion kit is used for significantly promoting neurite outgrowth of nerve cells as compared with a control, by acting on a neurosphere to induce differentiation of the neurosphere into nerve cells; a method for producing a neurosphere for treatment of spinal cord injury, which includes a step of using the above-described neurite outgrowth promotion kit on a neurosphere derived from a pluripotent stem cell; a neurosphere for treatment of spinal cord injury; and a method for selecting a neurosphere for treatment of spinal cord injury and a method for screening a neurite outgrowth-promoting agent.

    METHOD FOR PRODUCING NAÏVE PLURIPOTENT STEM CELLS
    4.
    发明公开
    METHOD FOR PRODUCING NAÏVE PLURIPOTENT STEM CELLS 审中-公开
    生产NAVEVE PLURIPOTENT STEM细胞的方法

    公开(公告)号:EP3272858A1

    公开(公告)日:2018-01-24

    申请号:EP16765082.9

    申请日:2016-03-17

    IPC分类号: C12N5/10 C12N5/0735 C12N15/09

    摘要: To produce and/or maintain naive pluripotent stem cells capable of highly expressing genes important for maintaining an undifferentiated state, which could not be achieved by known methods for producing pluripotent stem cells. The present invention can produce naive pluripotent stem cells capable of maintaining an undifferentiated state by introducing and allowing transient expression of six genes (Oct3/4, Klf4, c-Myc, Sox2, Nanog, and Klf2) among the so-called initializing factors, and further performing culturing in a medium containing LIF, an MEK inhibitor, a GSK3 inhibitor, a cAMP production promoter, a TGF-β inhibitor and a PKC inhibitor. Thus, the problem of the present invention can be solved.

    摘要翻译: 为了产生和/或维持能够高度表达对维持未分化状态重要的基因的幼稚多能干细胞,这是通过用于产生多能干细胞的已知方法不能实现的。 本发明可通过在所谓的初始化因子中导入并允许六种基因(Oct3 / 4,Klf4,c-Myc,Sox2,Nanog和Klf2)的瞬时表达来产生能够维持未分化状态的幼稚多能干细胞, 并进一步在含有LIF,MEK抑制剂,GSK3抑制剂,cAMP产生促进剂,TGF-β抑制剂和PKC抑制剂的培养基中进行培养。 因此,可以解决本发明的问题。

    METHOD FOR PRODUCING BRAIN ORGANOID INCLUDING AGGREGATED TAU PROTEIN

    公开(公告)号:EP4310178A1

    公开(公告)日:2024-01-24

    申请号:EP22771538.0

    申请日:2022-03-18

    申请人: Keio University

    摘要: A method for producing a brain organoid having an aggregated tau protein including a step (a) of culturing pluripotent stem cells in the presence of a SMAD inhibitor to form an embryoid body, a step (b) of embedding the embryoid body in an extracellular matrix and three-dimensionally culturing the embryoid body in the presence of a SMAD inhibitor and a GSK3β inhibitor to form an organoid that includes neural precursor cells, a step (c) of extracting the organoid from the extracellular matrix and suspension-culturing the organoid in the presence of LIF to form a brain organoid, a step (d) of forcing the brain organoid to express a mutant MAPT gene, and a step (e) of further suspension-culturing the brain organoid after step (d) to obtain a brain organoid having an aggregated tau protein.

    PRODUCTION METHOD FOR CEREBRAL ORGANOID
    9.
    发明公开

    公开(公告)号:EP4001401A1

    公开(公告)日:2022-05-25

    申请号:EP20836508.0

    申请日:2020-06-30

    申请人: Keio University

    IPC分类号: C12N5/079 C12N5/10 C12Q1/06

    摘要: A production method for a cerebral organoid having amyloid plaques is provided, the method including a step (a) of forming, in the presence of a SMAD inhibitor, an embryoid body from a pluripotent stem cell having a mutation in an Alzheimer's disease-related gene; a step (b) of embedding the embryoid body after the step (a) in an extracellular matrix and three-dimensionally culturing the embedded embryoid body in the presence of a SMAD inhibitor and a glycogen synthase kinase 3β (GSK3β) inhibitor to form an organoid; and a step (c) of removing the organoid after the step (b) from the extracellular matrix and subjecting the removed organoid to stirring culture in a medium, where at least a part of the step (c) is carried out in the presence of leukemia inhibitory factor (LIF).