De novo formation of insulin-producing "neo-β cell islets" from intestinal crypts.
De novo formation of insulin-producing "neo-β cell islets" from intestinal crypts.
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DOI:
10.1016/j.celrep.2014.02.013
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发表时间:
2014-03-27
期刊:
影响因子:
8.8
通讯作者:
Stanger BZ
中科院分区:
文献类型:
--
作者:
Chen YJ;Finkbeiner SR;Weinblatt D;Emmett MJ;Tameire F;Yousefi M;Yang C;Maehr R;Zhou Q;Shemer R;Dor Y;Li C;Spence JR;Stanger BZ
The ability to interconvert terminally differentiated cells could serve as a powerful tool for cell-based treatment of degenerative diseases, including diabetes mellitus. To determine which, if any, adult tissues are competent to activate an islet β cell program, we performed an in vivo screen by expressing three β cell “reprogramming factors” in a wide spectrum of tissues. We report that transient intestinal expression of these factors—Pdx1, MafA, and Ngn3 (PMN)—promotes rapid conversion of intestinal crypt cells into endocrine cells, which coalesce into “neoislets” below the crypt base. Neoislet cells express insulin and show ultrastructural features of β cells. Importantly, intestinal neoislets are glucose-responsive and able to ameliorate hyperglycemia in diabetic mice. Moreover, PMN expression in human intestinal “organoids” stimulates the conversion of intestinal epithelial cells into β-like cells. Our results thus demonstrate that the intestine is an accessible and abundant source of functional insulin-producing cells.
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DOI:
10.1038/nrg3473
发表时间:
2013-06
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
影响因子:
11.4
作者:
Jenny, M;Uhl, C;Gradwohl, G
通讯作者:
Gradwohl, G
影响因子:
14.8
作者:
通讯作者:
--
影响因子:
46.9
作者:
Kroon, Evert;Martinson, Laura A.;Baetge, Emmanuel E.
通讯作者:
Baetge, Emmanuel E.
影响因子:
64.5
作者:
Lee J;Sayed N;Hunter A;Au KF;Wong WH;Mocarski ES;Pera RR;Yakubov E;Cooke JP
通讯作者:
Cooke JP