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    • 7. 发明公开
    • EXPANSION AND ENGRAFTMENT OF STEM CELLS USING NOTCH 1 AND/OR NOTCH 2 AGONISTS
    • 扩大转基因维生素MIT NOTCH-1- UND / ODER NOTCH-2-AGONISTEN
    • EP3152301A1
    • 2017-04-12
    • EP15729698.9
    • 2015-06-03
    • Fred Hutchinson Cancer Research Center
    • BERNSTEIN, Irwin, D.
    • C12N5/0789
    • C12N5/0647C12N2501/42
    • The present disclosure provides methods for immortalizing precursor cells that are non-terminally differentiated cells such as stem cells, the methods comprising culturing the precursor cells in the presence of a Notch 1 agonist, Notch 2 agonist or Notch 1 agonist and Notch 2 agonist (and, in particular embodiments, one or more growth factors) that support the proliferation but not differentiation of the non-terminally differentiated cells. The present disclosure further provides methods to induce the differentiation of immortalized cells, comprising growing the cells in the presence of a Notch 1 agonist, Notch 2 agonist or Notch 1 agonist and Notch 2 agonist and at least one growth factor which supports the differentiation of the cell into a more specialized cell type. The immortalized and/or differentiated cells of the disclosure can be used to repopulate cell populations that have been diminished, for example as a result of infection or exposure to certain drugs. The disclosure further provides a cell culture comprising a population of non-terminally differentiated cells immortalized by the methods of the present disclosure and kits comprising reagents that promote the immortalization of precursor cells.
    • 本公开提供了用于永生化非终末分化细胞例如干细胞的前体细胞的方法,所述方法包括在Notch1激动剂Notch2激动剂或Notch1激动剂和Notch2激动剂存在下培养前体细胞(和 ,在具体实施方案中,一种或多种生长因子),其支持非终末分化细胞的增殖但不分化。 本公开进一步提供了诱导永生化细胞分化的方法,包括在Notch1激动剂Notch2激动剂或Notch1激动剂和Notch2激动剂存在下培养细胞,以及至少一种支持分化的生长因子 细胞变成更特殊的细胞类型。 本公开的永生化和/或分化的细胞可以用于重建已经减少的细胞群体,例如作为感染或暴露于某些药物的结果。 本公开进一步提供了包含通过本公开的方法永生化的非终末分化细胞群的细胞培养物和包含促进前体细胞永生化的试剂的试剂盒。