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    • 24. 发明申请
    • CONVERSION OF VASCULAR ENDOTHELIAL CELLS INTO MULTIPOTENT STEM-LIKE CELLS
    • 血管内皮细胞转化为多个干细胞样细胞
    • US20130078718A1
    • 2013-03-28
    • US13583294
    • 2011-03-09
    • Damian MediciBjorn Olsen
    • Damian MediciBjorn Olsen
    • C12N5/071
    • C12N5/0696C07K14/495C07K14/51C12N5/0668C12N2501/15C12N2501/155C12N2506/28
    • Disclosed herein is a method of producing multipotent cells, comprising, activating ALK2 of isolated endothelial cells in a serum starved environment, to thereby produce isolated multipotent cells. Activation can be following a threshold period of serum starvation. Activating ALK2 is by contacting the isolated endothelial cells with TGFβ-2 and/or BMP4. The isolated endothelial cells may be human, such as primary vascular, primary microvascular endothelial cells, primary human umbilical vein endothelial cells (HUVEC) or primary human cutaneous microvascular endothelial cells (HCMEC). The activation of ALK2 significantly decreases expression of VE-cadherein of the cells and/or significantly increases expression of one or more of STRO-1, FSP-1, α-SMA, N-cadherin, fibronectin (FN1), Snail (SNAI1), Slug (SNAI2), ZEB-1, SIP-1, LEF-1, Twist, CD10, CD13, CD44, CD73, CD90, CD120A, and CD124. The multipotent cells may further be used to generate other cell types such as osteoblast-like cells, chondrocyte-like cells, adipocyte-like cells, neural-like cells, and myocyte-like cells, by incubating the isolated multipotent cells in the appropriate culture conditions for a period sufficient to induce differentiation. The induced cells express TIE-2.
    • 本文公开了一种产生多能细胞的方法,包括在血清饥饿的环境中激活分离的内皮细胞的ALK2,从而产生分离的多能细胞。 激活可能在血清饥饿的阈值期后。 激活ALK2是通过使分离的内皮细胞与TGF和bgr-2和/或BMP4接触。 分离的内皮细胞可能是人类,如原发性血管,原发性微血管内皮细胞,原代人脐静脉内皮细胞(HUVEC)或原发性人皮肤微血管内皮细胞(HCMEC)。 ALK2的激活显着降低细胞的VE-钙粘蛋白的表达,和/或显着增加STRO-1,FSP-1,α-SMA,N-钙粘蛋白,纤连蛋白(FN1),蜗牛(SNAI1)的一种或多种的表达。 ,Slug(SNAI2),ZEB-1,SIP-1,LEF-1,Twist,CD10,CD13,CD44,CD73,CD90,CD120A和CD124。 通过将分离的多能细胞孵育到合适的培养物中,多潜能细胞还可用于产生其它细胞类型,例如成骨细胞样细胞,软骨细胞样细胞,脂肪细胞样细胞,神经样细胞和肌细胞样细胞 条件足以诱导分化的时间。 诱导细胞表达TIE-2。