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    • 7. 发明申请
    • IMPROVED METHODS OF SCREENING EMBRYONIC PROGENITOR CELL LINES
    • 筛选胚胎细胞细胞系的改进方法
    • WO2011150105A2
    • 2011-12-01
    • PCT/US2011/037969
    • 2011-05-25
    • BIOTIME INC.WEST, Michael D.STERNBERG, HalCHAPMAN, Karen B.
    • WEST, Michael D.STERNBERG, HalCHAPMAN, Karen B.
    • C12P21/06
    • C07K14/51
    • Aspects of the present invention include methods and compositions related to the production and use of numerous clonal lineages of embryonic progenitor cell lines derived from differentiating cultures of primordial stem cells with diverse molecular markers and having been cultured for > 21 doublings of clonal expansion. The robustness of these clonally-purified lines, their ability to expand for >40 passages while maintaining their pattern of gene expression, lack of tumorigenicity, and their embryonic pattern of gene expression offers novel compositions and methods for modeling numerous differentiation pathways for the first time in vitro, and for the manufacture of purified product not existing in such a purified state in nature or using other manufacturing modalities. Representative progenitor cell lines described herein are capable of development into cutaneous adipocytes, blood-brain barrier cells, neuronal cells, or smooth muscle cells each with therapeutic potential.
    • 本发明的方面包括与衍生自具有不同分子标记的原始干细胞的分化培养物的胚胎祖细胞系的许多克隆谱系的生产和使用相关的方法和组合物,并且已经培养了> 21倍的克隆扩增。 这些克隆纯化品系的稳健性,其扩展40代的能力,同时保持其基因表达模式,缺乏致瘤性,并且其胚胎基因表达模式提供了新的组合物和方法,用于首次建模多种分化途径 并且用于制造在本质上不存在于纯化状态的纯化产物或使用其它制造方式。 本文描述的代表性祖细胞系能够发展成具有治疗潜力的皮肤脂肪细胞,血脑屏障细胞,神经元细胞或平滑肌细胞。