Dll1+ secretory progenitor cells revert to stem cells upon crypt damage.
Dll1+ secretory progenitor cells revert to stem cells upon crypt damage.
复制标题
DOI:
10.1038/ncb2581
复制
发表时间:
2012-10
影响因子:
21.3
通讯作者:
中科院分区:
文献类型:
--
作者:
Lgr5 stem cells reside at small intestinal crypt bottoms, generating both the enterocyte and secretory lineage. Entry into the latter epithelial lineage requires silencing of Notch signaling. The Notch ligand Dll1 is strongly up-regulated in a small subset of immediate stem cell daughters. Lineage tracing utilizing a novel Dll1GFP-ires-CreERT2 knock-in mouse reveals that single Dll1high cells generate small, short-lived clones of all four secretory cell types. In culture, sorted Dll1high cells can form long-lived organoids when briefly exposed to Wnt3A. When Dll1 cells are genetically marked prior to tissue damage, significant numbers of stem cell tracing events occur. Lineage specification therefore occurs already in the earliest stem cell daughters through Notch lateral inhibition. Yet, specified secretory progenitors display plasticity and can regain stemness upon tissue damage.
登录
查看更多内容
影响因子:
30.8
作者:
Sangiorgi, Eugenio;Capecchi, Mario R.
通讯作者:
Capecchi, Mario R.
影响因子:
48
作者:
Raj, Arjun;van den Bogaard, Patrick;Rifkin, Scott A.;van Oudenaarden, Alexander;Tyagi, Sanjay
通讯作者:
Tyagi, Sanjay
影响因子:
2.6
作者:
Beckers, J;Clark, A;Gossler, A
通讯作者:
Gossler, A
影响因子:
11.4
作者:
Jenny, M;Uhl, C;Gradwohl, G
通讯作者:
Gradwohl, G
影响因子:
--
作者:
CHENG, H;LEBLOND, CP
通讯作者:
LEBLOND, CP