The basement membrane of hair follicle stem cells is a muscle cell niche.
The basement membrane of hair follicle stem cells is a muscle cell niche.
复制标题
DOI:
10.1016/j.cell.2011.01.014
复制
发表时间:
2011-02-18
期刊:
影响因子:
64.5
通讯作者:
Watt FM
中科院分区:
文献类型:
--
作者:
Fujiwara H;Ferreira M;Donati G;Marciano DK;Linton JM;Sato Y;Hartner A;Sekiguchi K;Reichardt LF;Watt FM
The hair follicle bulge in the epidermis associates with the arrector pili muscle (APM) that is responsible for piloerection (commonly called "goosebumps"). We show that deposition of nephronectin into the basement membrane by bulge stem cells mediates selective adhesion of α8β1 integrin-expressing mesenchymal cells, including APM progenitors. Nephronectin induces α8 integrin-positive cells to upregulate smooth muscle markers. In nephronectin-null skin, the number of APM is reduced and those that form insert above the bulge, where there is compensatory upregulation of the nephronectin family member EGFL6. Deletion of α8 integrin also abolishes the selectivity of APM anchorage to the bulge. Nephronectin is a Wnt target gene; epidermal β-catenin activation upregulates epidermal nephronectin and dermal α8 integrin expression. We conclude that by expressing nephronectin bulge stem cells provide a smooth muscle cell niche and act as tendon cells for the APM. The results also reveal a functional role for basement membrane heterogeneity in tissue patterning.
登录
查看更多内容
影响因子:
46.9
作者:
Morris, RJ;Liu, YP;Cotsarelis, G
通讯作者:
Cotsarelis, G
影响因子:
10.5
作者:
Gao, Jing;DeRouen, Mindy C.;Marinkovich, M. Peter
通讯作者:
Marinkovich, M. Peter
影响因子:
30.8
作者:
Nguyen, Hoang;Merrill, Bradley J.;Polak, Lisa;Nikolova, Maria;Rendl, Michael;Shaver, Timothy M.;Pasolli, H. Amalia;Fuchs, Elaine
通讯作者:
Fuchs, Elaine
影响因子:
6.5
作者:
AKIYAMA, M;DALE, BA;HOLBROOK, KA
通讯作者:
HOLBROOK, KA
影响因子:
50.3
作者:
Erez, Neta;Truitt, Morgan;Hanahan, Douglas
通讯作者:
Hanahan, Douglas