Blood:BET抑制剂CPI203可促进脐血HSC和巨噬细胞扩增

2020-07-04 QQY MedSci原创

CPI203-处理的脐带血细胞保持骨髓再生能力;CPI203能促进人巨核细胞的体外发育。

虽然细胞因子介导的人造血干细胞(HSCs)扩增可导致造血祖细胞高产出,但这通常是以降低骨髓造血干细胞的再生能力为代价的,因此限制了潜在的治疗应用价值。

鉴于含溴区结构域(Bromodomain)的蛋白(BCPs)已被证实可调节小鼠HSC的自我更新和静息状态,Peng Hua等人筛选了靶向各种BCPs的小分子作为人造血干细胞体外扩增的潜在试剂。

在10种检测的复合物中,只有溴区结构域和BET(Extra-terminal模体)抑制剂CPI203可增强人脐带血HSC在体外扩增,且不丧失细胞活力。在系列移植试验中,扩增细胞也被证实改善了移植和再生。

转录组和功能研究显示,长期再生HSC的扩增伴随着巨核细胞的同步扩增和成熟,这与CPI203介导的脐血造血干/祖细胞(HSPCs)重编程一致。

总而言之,该方法可能有助于体外基因编辑、增强血小板生成以及改善脐带血在移植研究和治疗中的使用。

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    2021-01-16 zhouqu_8
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    2020-09-23 jklm09
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    2020-08-06 ms8000001011319284

    题目里应该是巨核细胞,巨噬是macrophage

    0

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    2021-06-08 sjq035

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