Pancreatic islet-autonomous insulin and smoothened-mediated signalling modulate identity changes of glucagon(+) α-cells.
Pancreatic islet-autonomous insulin and smoothened-mediated signalling modulate identity changes of glucagon(+) α-cells.
复制标题
DOI:
10.1038/s41556-018-0216-y
复制
发表时间:
2018-11
影响因子:
21.3
通讯作者:
Herrera PL
中科院分区:
文献类型:
--
作者:
Cigliola V;Ghila L;Thorel F;van Gurp L;Baronnier D;Oropeza D;Gupta S;Miyatsuka T;Kaneto H;Magnuson MA;Osipovich AB;Sander M;Wright CEV;Thomas MK;Furuyama K;Chera S;Herrera PL
The mechanisms restricting regeneration and maintaining cell identity following injury are poorly characterized in higher vertebrates. Upon β-cell loss, 1–2% of the glucagon-producing α-cells spontaneously engage in insulin production in mice. Here we explore the mechanisms inhibiting α-cell plasticity. We show that the adaptive α-cell identity changes are constrained by intra-islet Insulin- and Smoothened-mediated signaling, among others. The combination of β-cell loss, or insulin signaling inhibition, with Smoothened inactivation in α- or δ-cells, stimulates insulin production in more α-cells. These findings suggest that removing constitutive “brake signals” is crucial for neutralizing the refractoriness to adaptive cell-fate changes. It appears that cell identity maintenance is an active process mediated by repressive signals, released by neighbor cells, curbing an intrinsic trend of differentiated cells to change.
登录
查看更多内容
影响因子:
29
作者:
Chakravarthy H;Gu X;Enge M;Dai X;Wang Y;Damond N;Downie C;Liu K;Wang J;Xing Y;Chera S;Thorel F;Quake S;Oberholzer J;MacDonald PE;Herrera PL;Kim SK
通讯作者:
Kim SK
影响因子:
8
作者:
Grieco, F. A.;Moretti, M.;Dotta, F.
通讯作者:
Dotta, F.
影响因子:
8.2
作者:
Butler, A. E.;Cao-Minh, L.;Galasso, R.;Rizza, R. A.;Corradin, A.;Cobelli, C.;Butler, P. C.
通讯作者:
Butler, P. C.
DOI:
10.1111/dom.12726
发表时间:
2016-09
期刊:
Diabetes, obesity & metabolism
影响因子:
--
作者:
Cigliola V;Thorel F;Chera S;Herrera PL
通讯作者:
Herrera PL
影响因子:
16
作者:
Bruning, JC;Michael, MD;Kahn, CR
通讯作者:
Kahn, CR