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    • 70. 发明申请
    • HORMONE RESPONSIVE TISSUE CULTURE SYSTEM AND USES THEREOF
    • HORMONE反应组织文化系统及其用途
    • US20130055417A1
    • 2013-02-28
    • US13555968
    • 2012-07-23
    • Tan A. InceRobert A. Weinberg
    • Tan A. InceRobert A. Weinberg
    • C12N5/095C12Q1/02G01N33/574A61K49/00C12Q1/68C07H19/16C07K9/00C12N5/071C12N15/85
    • C12N5/0631C12N15/85C12N2500/05C12N2500/24C12N2500/36C12N2500/42C12N2500/60C12N2501/01C12N2501/11C12N2501/33C12N2501/39C12N2501/392C12N2501/395
    • The invention provides tissue culture system for primary cells (e.g. normal mammalian primary epithelial progenitors). This system includes: a) a serum-free, chemically defined cell culture media; and, b) methods for isolation and in vitro long-term propagation of primary cells (e.g. primary epithelial cells). Primary cells so isolated and cultured can be kept undifferentiated and proliferate for many weeks (>15 weeks) or population doubling (>35 PD) without senescence, or any detectable genetic alterations. Upon changing media/culture conditions, these cells can be induced to differentiate.The invention also provides methods to transform normal primary cells so cultured into “cancer stem cells.” The genetically defined cancer stem cell tumor model mimics the behavior of the disease closely, e.g., the cells are invasive, hormone responsive and metastatic when injected into mice. The tumor cells express genes that are specific to cancer stem cells identified in patient samples.
    • 本发明提供了用于原代细胞的组织培养系统(例如,正常的哺乳动物原代上皮祖细胞)。 该系统包括:a)无血清,化学定义的细胞培养基; 和b)原代细胞(例如原发性上皮细胞)的分离和体外长期繁殖的方法。 如此分离和培养的原代细胞可以保持未分化和增殖多个星期(> 15周)或增殖倍数(> 35PD)而不衰老或任何可检测的遗传改变。 改变培养基/培养条件后,可诱导这些细胞分化。 本发明还提供了将如此培养成癌干细胞的正常原代细胞转化的方法。 遗传定义的癌症干细胞肿瘤模型密切地模拟疾病的行为,例如,当注射入小鼠时,细胞是侵入性的,激素反应性的和转移的。 肿瘤细胞表达在患者样品中鉴定的癌干细胞特异的基因。