Basal lamina remodeling at the skeletal muscle stem cell niche mediates stem cell self-renewal.
Basal lamina remodeling at the skeletal muscle stem cell niche mediates stem cell self-renewal.
复制标题
DOI:
10.1038/s41467-018-03425-3
复制
发表时间:
2018-03-14
影响因子:
16.6
通讯作者:
Borycki AG
中科院分区:
文献类型:
--
作者:
Rayagiri SS;Ranaldi D;Raven A;Mohamad Azhar NIF;Lefebvre O;Zammit PS;Borycki AG
A central question in stem cell biology is the relationship between stem cells and their niche. Although previous reports have uncovered how signaling molecules released by niche cells support stem cell function, the role of the extra-cellular matrix (ECM) within the niche is unclear. Here, we show that upon activation, skeletal muscle stem cells (satellite cells) induce local remodeling of the ECM and the deposition of laminin-α1 and laminin-α5 into the basal lamina of the satellite cell niche. Genetic ablation of laminin-α1, disruption of integrin-α6 signaling or blocking matrix metalloproteinase activity impairs satellite cell expansion and self-renewal. Collectively, our findings establish that remodeling of the ECM is an integral process of stem cell activity to support propagation and self-renewal, and may explain the effect laminin-α1-containing supports have on embryonic and adult stem cells, as well as the regenerative activity of exogenous laminin-111 therapy. Extracellular matrix (ECM) remodelling is thought to have effects on muscle stem cells that support muscle homeostasis. Here the authors show ECM remodeling controls satellite cell self-renewal through deposition of laminin-α1 into the satellite cell niche.
登录
查看更多内容
影响因子:
1.5
作者:
Alpy, F;Jivkov, I;Lefebvre, O
通讯作者:
Lefebvre, O
影响因子:
4.6
作者:
Lepper, Christoph;Partridge, Terence A.;Fan, Chen-Ming
通讯作者:
Fan, Chen-Ming
影响因子:
3.5
作者:
Dahiya, Saurabh;Bhatnagar, Shephali;Kumar, Ashok
通讯作者:
Kumar, Ashok
影响因子:
2.6
作者:
Hayashi, Shigemi;Lewis, Paula;McMahon, Andrew P.
通讯作者:
McMahon, Andrew P.
影响因子:
23.9
作者:
Bentzinger, C. Florian;Wang, Yu Xin;von Maltzahn, Julia;Soleimani, Vahab D.;Yin, Hang;Rudnicki, Michael A.;Rudnicki, A.
通讯作者:
Rudnicki, A.