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    • 4. 发明专利
    • Stimulation of hematopoietic cells in vitro
    • 刺激血管生成细胞
    • JP2006081554A
    • 2006-03-30
    • JP2005329518
    • 2005-11-14
    • Point Therapeutics Incポイント セラピューティクス, インコーポレイテッド
    • BACHOVCHIN WILLIAMWALLNER BARBARA
    • C12M1/00A61K35/12A61K35/14A61K35/26A61K35/28A61K39/00A61P7/00C12N5/02C12N5/0789
    • C12N5/0647A61K39/0011A61K2039/5158A61K2039/6031A61K2039/627C12N2501/70
    • PROBLEM TO BE SOLVED: To provide a new method for stimulating hematopoietic cells in vitro in the absence of exogenously provided cytokines supporting cell proliferation and differentiation. SOLUTION: A method for stimulating hematopoietic cells in vitro comprising the following steps of : (1) contacting the hematopoietic cells with a sufficient amount of an inhibitor of a dipeptidylpeptidase type IV to increase the number of the hematopoietic cells and/or the differentiation state of the hematopoietic cells relative to the number and differentiation of hematopoietic cells that are present in a control culture that is not contacted with the inhibitor but is otherwise subjected to the same culture conditions as the hematopoietic cells which are cultured in the presence of the inhibitor; and (2) culturing the hematopoietic cells in the presence of the inhibitor and in the absence of exogenous cytokine under conditions and for a time sufficient to increase the number of hematopoietic cells and/or the differentiation of the hematopoietic cells relative to the number of hematopoietic cells that were present in the control culture. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种在不存在外源性提供的支持细胞增殖和分化的细胞因子的情况下在体外刺激造血细胞的新方法。 解决方案:体外刺激造血细胞的方法,包括以下步骤:(1)使造血细胞与足够量的IV型二肽基肽酶抑制剂接触以增加造血细胞的数量和/或 造血细胞的分化状态相对于存在于不与抑制剂接触的对照培养物中的造血细胞的数量和分化,否则与造血细胞接触的培养条件相同,所述培养条件是在存在 抑制剂; 和(2)在抑制剂存在下和在不存在外源性细胞因子的情况下,在足以增加造血细胞数量和/或造血细胞分化相对于造血细胞数量的条件下培养造血细胞 存在于对照培养物中的细胞。 版权所有(C)2006,JPO&NCIPI