Abnormal hair development and apparent follicular transformation to mammary gland in the absence of hedgehog signaling.
Abnormal hair development and apparent follicular transformation to mammary gland in the absence of hedgehog signaling.
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在没有刺猬信号的情况下,头发发育异常和明显的卵泡转化向乳腺。
DOI:
10.1016/j.devcel.2006.12.006
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发表时间:
2007-01
影响因子:
11.8
通讯作者:
Linde, Anders
中科院分区:
文献类型:
--
作者:
Gritli-Linde, Amel;Hallberg, Kristina;Harfe, Brian D.;Reyahi, Azadeh;Kannius-Janson, Marie;Nilsson, Jeanette;Cobourne, Martyn T.;Sharpe, Paul T.;McMahon, Andrew P.;Linde, Anders
We show that removing the Shh signal tranducer Smoothened from skin epithelium secondarily results in excess Shh levels in the mesenchyme. Moreover, the phenotypes we observe reflect decreased epithelial Shh signaling, yet increased mesenchymal Shh signaling. For example, the latter contributes to exuberant hair follicle (HF) induction, while the former depletes the resulting follicular stem cell niches. This disruption of the niche apparently also allows the remaining stem cells to initiate hair formation at inappropriate times. Thus, the temporal structure of the hair cycle may depend on the physical structure of the niche. Finally, we find that the ablation of epithelial Shh signaling results in unexpected transformations: the follicular outer root sheath takes on an epidermal character, and certain HFs disappear altogether, having adopted a strikingly mammary gland-like fate. Overall, our study uncovers a multifaceted function for Shh in sculpting and maintaining the integrity and identity of the developing HF.
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影响因子:
2.7
作者:
Chiang, C;Swan, RZ;Dlugosz, AA
通讯作者:
Dlugosz, AA
DOI:
10.1073/pnas.95.22.13036
发表时间:
1998-10-27
影响因子:
11.1
作者:
Kim, SK;Melton, DA
通讯作者:
Melton, DA
影响因子:
6.5
作者:
JAHODA, CAB;REYNOLDS, AJ
通讯作者:
REYNOLDS, AJ
影响因子:
2.7
作者:
MacKenzie, MAF;Jordan, SA;Jackson, IJ
通讯作者:
Jackson, IJ
影响因子:
9.2
作者:
Andl, Thomas;Murchison, Elizabeth P.;Millar, Sarah E.
通讯作者:
Millar, Sarah E.