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    • 84. 发明申请
    • MEDIUM FOR GROWING HUMAN EMBRYONIC STEM CELLS
    • 培养人胚胎干细胞
    • WO2006017370A2
    • 2006-02-16
    • PCT/US2005025179
    • 2005-07-13
    • GERON CORPXU CHUNHUILI YANMANDALAM RAMKUMARLEBKOWSKI JANE S
    • XU CHUNHUILI YANMANDALAM RAMKUMARLEBKOWSKI JANE S
    • C12N5/02C12N5/0735
    • C12N5/0606C12N2500/90C12N2500/98C12N2501/115C12N2501/125C12N2501/15C12N2501/26C12N2533/90
    • This disclosure provides an improved system for deriving culturing human pluripotent stem cells. Traditionally, pluripotent stem cells are cultured on a layer of mouse embryonic fibroblast feeder cells to prevent them from differentiating. In the system described here, the role of feeder cells is replaced by defined components added to the culture environment that support rapid proliferation without differentiation. The medium contains an isotonic buffer, a blend of essential nutrients such as protein and lipids, and an effective growth factor or combination of factors that promote proliferation while inhibiting differentiation. Culturing human embryonic stem cells in fresh medium on an extracellular matrix according to this invention causes the cells to expand surprisingly rapidly, while retaining the ability to differentiate into cells representing all three embryonic germ layers. This new culture system allows for bulk proliferation of pPS cells for commercial production of important products for use in drug screening and human therapy.
    • 本公开提供了用于衍生培养人多能干细胞的改进的系统。 传统上,多能干细胞在一层小鼠胚胎成纤维细胞饲养细胞上培养以防止它们分化。 在这里描述的系统中,饲养细胞的作用被添加到支持快速增殖而不分化的培养环境中的限定成分所取代。 培养基含有等渗缓冲液,蛋白质和脂质等必需营养素的混合物,以及促进增殖同时抑制分化的有效生长因子或因子组合。 在根据本发明的细胞外基质上的新鲜培养基中培养人胚胎干细胞导致细胞惊人地快速扩张,同时保持分化成代表所有三个胚胎胚层的细胞的能力。 这种新的培养系统允许pPS细胞的大量增殖用于商业生产用于药物筛选和人类治疗的重要产品。