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首页> 外文期刊>Development >Runx1 modulates developmental, but not injury-driven, hair follicle stem cell activation.
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Runx1 modulates developmental, but not injury-driven, hair follicle stem cell activation.

机译:Runx1调节发育,而不是损伤驱动的毛囊干细胞活化。

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摘要

Aml1/Runx1 controls developmental aspects of several tissues, is a master regulator of blood stem cells, and plays a role in leukemia. However, it is unclear whether it functions in tissue stem cells other than blood. Here, we have investigated the role of Runx1 in mouse hair follicle stem cells by conditional ablation in epithelial cells. Runx1 disruption affects hair follicle stem cell activation, but not their maintenance, proliferation or differentiation potential. Adult mutant mice exhibit impaired de novo production of hair shafts and all temporary hair cell lineages, owing to a prolonged quiescent phase of the first hair cycle. The lag of stem cell activity is reversed by skin injury. Our work suggests a degree of functional overlap in Runx1 regulation of blood and hair follicle stem cells at an equivalent time point in the development of these two tissues.
机译:Aml1 / Runx1控制几种组织的发育,是血液干细胞的主要调节剂,并在白血病中发挥作用。但是,尚不清楚它是否在血液以外的组织干细胞中起作用。在这里,我们通过有条件的消融上皮细胞研究了Runx1在小鼠毛囊干细胞中的作用。 Runx1破坏影响毛囊干细胞活化,但不影响其维持,增殖或分化潜能。由于第一个毛发循环的静止期延长,成年突变小鼠的毛干和所有临时毛细胞谱系的从头产生受损。皮肤损伤可以逆转干细胞活性的滞后。我们的工作表明,在这两个组织发育的相同时间点,血液和毛囊干细胞的Runx1调节在功能上有一定程度的重叠。

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