Home sweet home: skin stem cell niches.

Home sweet home: skin stem cell niches.
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DOI:
10.1007/s00018-012-0943-3
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发表时间:
2012-08
影响因子:
8
通讯作者:
Horsley, Valerie
Horsley, Valerie
中科院分区:
生物学1区
文献类型:
--
作者:
Goldstein, Jill;Horsley, Valerie

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由于常驻上皮干细胞(SCs)的活性,哺乳动物的表皮及其附属物,如毛囊(HF),在出生后的整个生命周期中不断地再生。卵泡SC生态位,或凸起,是由异质群体的自我更新的多能细胞组成的。多种内在分子机制促进卵泡sc从静止到激活的转变。此外,许多外源性细胞类型影响膨出细胞的活性和特征。最终,这些内在和外在机制之间的平衡影响了细胞在体内平衡和组织再生过程中的功能,并可能导致皮肤肿瘤的发生。在这里,我们回顾了促进皮肤SC生态位的内在和外在因素。
The epidermis and its appendages, such as the hair follicle (HF), continually regenerate throughout postnatal mammalian life due to the activity of resident epithelial stem cells (SCs). The follicular SC niche, or the bulge, is composed of a heterogeneous population of self-renewing multipotent cells. Multiple intrinsic molecular mechanisms promote the transition of follicular SCs from quiescence to activation. In addition, numerous extrinsic cell types influence the activity and characteristics of bulge cells. Ultimately, the balance between these intrinsic and extrinsic mechanisms influences the function of bulge cells during homeostasis and tissue regeneration and likely contributes to skin tumorigenesis. Here we review both the intrinsic and extrinsic factors that contribute to the skin SC niche.
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