Immunohistochemical study of hair follicle stem cells in regenerated hair follicles induced by Wnt10b.

Immunohistochemical study of hair follicle stem cells in regenerated hair follicles induced by Wnt10b.
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Wnt10b诱导再生毛囊中毛囊干细胞的免疫组织化学研究

DOI:
10.7150/ijms.16118
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发表时间:
2016
影响因子:
3.6
通讯作者:
Li Y
Li Y
中科院分区:
医学4区
文献类型:
--
作者:
Zhang Y;Xing Y;Guo H;Ma X;Li Y

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毛囊周期性再生的调节是复杂的。虽然已有报道Wnt10b可以诱导毛囊再生,但诱导毛囊的特性,特别是Wnt10b的靶细胞,尚未明确阐明。因此,我们系统地评估了Wnt10b诱导的毛囊的表达和增殖模式。我们发现Wnt10b在注射AdWnt10b后24小时起促进毛囊干细胞的增殖。注射AdWnt10b后72h,隆突区以外的细胞开始增殖。当诱导的毛囊进入完全生长期时,虽然毛囊干细胞是正常的,但典型的Wnt信号在毛前皮质细胞中维持。我们的研究结果表明,过表达Wnt10b的靶细胞包括毛囊干细胞、毛前皮质细胞和基质细胞。
The regulation of the periodic regeneration of hair follicles is complicated. Although Wnt10b has been reported to induce hair follicle regeneration, the characteristics of induced hair follicles, especially the target cells of Wnt10b, have not yet been clearly elucidated. Thus, we systematically evaluated the expression and proliferation patterns of Wnt10b-induced hair follicles. We found that Wnt10b promoted the proliferation of hair follicle stem cells from 24 hours after AdWnt10b injection. Seventy-two hours after AdWnt10b injection, cells outside of bulge area began to proliferate. When the induced hair follicle entered full anagen, although the hair follicle stem cells were normal, canonical Wnt signaling was maintained in the hair precortex cells. Our results reveal that the target cells that overexpressed Wnt10b included hair follicle stem cells, hair precortex cells, and matrix cells.
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