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    • 3. 发明申请
    • Stem cell libraries
    • 干细胞库
    • US20060035373A1
    • 2006-02-16
    • US11003840
    • 2004-12-06
    • Hongbing ZhangLewis WilliamsKeting ChuFred Cohen
    • Hongbing ZhangLewis WilliamsKeting ChuFred Cohen
    • C12N5/08C12N15/87C40B40/02
    • C12N5/0606
    • A stem cell library is created by genetically modifying stem cells with nucleic acids encoding polypeptides which can promote stem cell differentiation into specific cell types. Alternatively, the stem cell library is exposed to an externally added factor that promotes stem cell differentiation into a desired cell line, e.g., neuronal or muscle. The library is used to determine the effect of the encoded protein on the differentiation process. The library is also used to produce nucleic acids for insertion into embryonic stem cells to produce transfected embryonic stem cells. The nucleic acids are inserted into a locus that permits widespread expression of the encoded polypeptide in animals produced from blastocysts that incorporate the transfected cells. Non-human chimeric animals produced by combining blastocysts derived from animal models of human disease and embryonic stem cells transfected with molecules from the library provide an in vivo system for therapeutic design.
    • 通过用能够促进干细胞分化成特定细胞类型的多肽的核酸对遗传修饰干细胞产生干细胞文库。 或者,干细胞文库暴露于促进干细胞分化成所需细胞系(例如神经元或肌肉)的外部添加因子。 该文库用于确定编码的蛋白质对分化过程的影响。 该文库还用于生产用于插入胚胎干细胞以产生转染的胚胎干细胞的核酸。 将核酸插入到允许编码的多肽在掺入转染细胞的囊胚产生的动物中广泛表达的基因座。 通过将源自人类疾病的动物模型的胚泡和来自文库的分子转染的胚胎干细胞组合产生的非人类嵌合动物提供用于治疗设计的体内系统。