The methods and compositions described herein relate to producing, expanding, enriching, and/or maintaining hematopoietic stem cells ex vivo by treating the cells with an agent(s) that exhibits two or more activities selected from modulation of histone methylation; inhibition of TGFβ signaling; inhibition of p38 signaling; activation of canonical Wnt signaling; and modulation of histone acetylation. In some embodiments, the technology described herein relates to transplantation of hematopoietic stem cells.
本文所述的方法和组合物涉及用一种或多种药剂处理体内外造血干细胞,以产生、扩增、富集和/或维持造血干细胞,这些药剂具有两种或多种活性,选自组蛋白甲基化调节;TGFβ
信号转导抑制;p38
信号转导抑制;典型Wnt
信号转导激活;组蛋白乙酰化调节。在某些实施方案中,本文所述技术涉及造血干细胞的移植。