Nerve-derived sonic hedgehog defines a niche for hair follicle stem cells capable of becoming epidermal stem cells.
Nerve-derived sonic hedgehog defines a niche for hair follicle stem cells capable of becoming epidermal stem cells.
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DOI:
10.1016/j.stem.2011.02.021
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发表时间:
2011-05-06
期刊:
影响因子:
23.9
通讯作者:
Joyner, Alexandra L.
中科院分区:
文献类型:
--
作者:
Brownell, Isaac;Guevara, Elizabeth;Bai, C. Brian;Loomis, Cynthia A.;Joyner, Alexandra L.
In adult skin, stem cells in the hair follicle bulge cyclically regenerate the follicle, whereas a distinct stem cell population maintains the epidermis. The degree to which all bulge cells have equal regenerative potential is not known. We found that Sonic hedgehog (Shh) from neurons signals to a novel population of cells in the telogen bulge marked by the Hedgehog response gene Gli1. Gli1-expressing bulge cells function as multipotent stem cells in their native environment and repeatedly regenerate the anagen follicle. Shh-responding perineural bulge cells incorporate into healing skin wounds where, notably, they can change their lineage into epidermal stem cells. The perineural niche (including Shh) is dispensable for follicle contributions to acute wound healing and skin homeostasis, but is necessary to maintain bulge cells capable of becoming epidermal stem cells. Thus nerves cultivate a microenvironment where Shh creates a molecularly and phenotypically distinct population of hair follicle stem cells.
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影响因子:
2.7
作者:
Chiang, C;Swan, RZ;Dlugosz, AA
通讯作者:
Dlugosz, AA
影响因子:
4.6
作者:
Greco, Valentina;Guo, Shangqin
通讯作者:
Guo, Shangqin
影响因子:
4.6
作者:
Legué, E;Nicolas, JF
通讯作者:
Nicolas, JF
DOI:
10.1083/jcb.147.1.71
发表时间:
1999-10-04
期刊:
The Journal of cell biology
影响因子:
--
作者:
Fan H;Khavari PA
通讯作者:
Khavari PA
影响因子:
11.8
作者:
Jiang J;Hui CC
通讯作者:
Hui CC