Paracrine Interactions within the Pancreatic Islet Determine the Glycemic Set Point.
Paracrine Interactions within the Pancreatic Islet Determine the Glycemic Set Point.
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DOI:
10.1016/j.cmet.2018.01.015
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发表时间:
2018-03-06
期刊:
影响因子:
29
通讯作者:
Berggren PO
中科院分区:
文献类型:
--
作者:
Rodriguez-Diaz R;Molano RD;Weitz JR;Abdulreda MH;Berman DM;Leibiger B;Leibiger IB;Kenyon NS;Ricordi C;Pileggi A;Caicedo A;Berggren PO
Every animal species has a signature blood glucose level or glycemic set point. These set points are different and the normal glycemic levels (normoglycemia) of one species would be life threatening for other species. Mouse normoglycemia can be considered diabetic for humans. The biological determinants of the glycemic set point remain unclear. Here we show that the pancreatic islet imposes its glycemic set point on the organism, making it the bona fide glucostat in the body. Moreover, and in contrast to rodent islets, glucagon input from the alpha cell to the insulin secreting beta cell is necessary to fine-tune the distinctive human set point. These findings impact transplantation and regenerative approaches to treat diabetes because restoring normoglycemia may require more than replacing only the beta cells. Furthermore, therapeutic strategies using glucagon receptor antagonists as hypoglycemic agents need to be reassessed as they may reset the overall glucostat in the organism. By transplanting human, monkey and mice pancreatic islets into diabetic mice, XXX et al show that islet grafts transfer the glycemic set point of the donor species, independent of transplanted islet mass. Human islet grafts sense glucose levels and adjust their insulin secretion accordingly, with help from adjacent alpha cells.
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影响因子:
8.8
作者:
Diez JA;Arrojo E Drigo R;Zheng X;Stelmashenko OV;Chua M;Rodriguez-Diaz R;Fukuda M;Köhler M;Leibiger I;Tun SBB;Ali Y;Augustine GJ;Barathi VA;Berggren PO
通讯作者:
Berggren PO
影响因子:
2.2
作者:
Dolenšek J;Rupnik MS;Stožer A
通讯作者:
Stožer A
DOI:
10.1073/pnas.1105002108
发表时间:
2011-08-02
影响因子:
11.1
作者:
Abdulreda, Midhat H.;Faleo, Gaetano;Berggren, Per-Olof
通讯作者:
Berggren, Per-Olof
影响因子:
2.7
作者:
de Laszlo, SE;Hacker, C;Hagmann, WK
通讯作者:
Hagmann, WK
影响因子:
7.7
作者:
Hansen, LH;Abrahamsen, N;Nishimura, E
通讯作者:
Nishimura, E