Msi2 Maintains Quiescent State of Hair Follicle Stem Cells by Directly Repressing the Hh Signaling Pathway.
Msi2 Maintains Quiescent State of Hair Follicle Stem Cells by Directly Repressing the Hh Signaling Pathway.
复制标题
Msi2 通过直接抑制 Hh 信号通路维持毛囊干细胞的静态状态
DOI:
10.1016/j.jid.2017.01.012
复制
发表时间:
2017-05
期刊:
影响因子:
--
通讯作者:
Yu Z
中科院分区:
文献类型:
--
作者:
Ma X;Tian Y;Song Y;Shi J;Xu J;Xiong K;Li J;Xu W;Zhao Y;Shuai J;Chen L;Plikus MV;Lengner CJ;Ren F;Xue L;Yu Z
Hair follicles (HFs) undergo precisely regulated cycles of active regeneration consisting of (anagen), involution (catagen), and relative quiescence (telogen) phases. HF stem cells (HFSCs) play important roles in regenerative cycling. Elucidating mechanisms that governs HFSC behavior can help uncover the underlying principles of hair development, hair growth disorders and skin cancers. RNA-binding proteins of the Musashi (Msi) have been implicated in the biology of different stem cell types, yet they have not been studied in HFSCs. Here we utilized gain- and loss-of-function mouse models to demonstrate that forced MSI2 expression retards anagen entry and consequently, delays hair growth, while loss of Msi2 enhances hair regrowth. Further, our findings show that Msi2 maintains quiescent state of HFSCs in the process of telogen-to-anagen transition. At the molecular level, our unbiased transcriptome profiling shows that Msi2 represses Hh signaling activity and that Shh is its direct target in the HF. Taken together, our findings reveal the importance of Msi2 in suppressing hair regeneration and maintaining HFSC quiescence. Previously unreported Msi2-Shh-Gli1 pathway adds to the growing understanding of the complex network governing cyclic hair growth.
登录
查看更多内容
影响因子:
23.9
作者:
Folgueras AR;Guo X;Pasolli HA;Stokes N;Polak L;Zheng D;Fuchs E
通讯作者:
Fuchs E
影响因子:
7.7
作者:
Katz Y;Li F;Lambert NJ;Sokol ES;Tam WL;Cheng AW;Airoldi EM;Lengner CJ;Gupta PB;Yu Z;Jaenisch R;Burge CB
通讯作者:
Burge CB
影响因子:
7.3
作者:
Lee, Jayhun;Tumbar, Tudorita
通讯作者:
Tumbar, Tudorita
影响因子:
64.5
作者:
Horsley, Valerie;Aliprantis, Antonios O.;Fuchs, Elaine
通讯作者:
Fuchs, Elaine
DOI:
10.1073/pnas.1320301110
发表时间:
2013-12-17
影响因子:
11.1
作者:
Keyes, Brice E.;Segal, Jeremy P.;Fuchs, Elaine
通讯作者:
Fuchs, Elaine