Pancreatic α and β cells are globally phase-locked.
Pancreatic α and β cells are globally phase-locked.
复制标题
胰腺α和β细胞全局锁相
DOI:
10.1038/s41467-022-31373-6
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发表时间:
2022-06-28
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
The Ca2+ modulated pulsatile glucagon and insulin secretions by pancreatic α and β cells play a crucial role in glucose homeostasis. However, how α and β cells coordinate to produce various Ca2+ oscillation patterns is still elusive. Using a microfluidic device and transgenic mice, we recorded Ca2+ signals from islet α and β cells, and observed heterogeneous Ca2+ oscillation patterns intrinsic to each islet. After a brief period of glucose stimulation, α and β cells’ oscillations were globally phase-locked. While the activation of α cells displayed a fixed time delay of ~20 s to that of β cells, β cells activated with a tunable period. Moreover, islet α cell number correlated with oscillation frequency. We built a mathematical model of islet Ca2+ oscillation incorporating paracrine interactions, which quantitatively agreed with the experimental data. Our study highlights the importance of cell-cell interaction in generating stable but tunable islet oscillation patterns. The Ca2+ modulated pulsatile glucagon and insulin secretions by pancreatic α and β cells are critical in glucose homeostasis. Here the authors show that the Ca2+ oscillations of α and β cells are phase-locked, and that the oscillation pattern is tuned by paracrine interactions between α and β cells.
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影响因子:
4.8
作者:
Gilon, P;Arredouani, A;Henquin, JC
通讯作者:
Henquin, JC
影响因子:
10.9
作者:
Benninger, Richard K. P.;Piston, David W.
通讯作者:
Piston, David W.
影响因子:
56.9
作者:
GOODNER, CJ;WALIKE, BC;KALNASY, L
通讯作者:
KALNASY, L
影响因子:
3.4
作者:
Bertram, R;Satin, L;Sherman, A
通讯作者:
Sherman, A
DOI:
10.1113/jp274581
发表时间:
2018-01-15
期刊:
The Journal of physiology
影响因子:
--
作者:
Briant LJB;Reinbothe TM;Spiliotis I;Miranda C;Rodriguez B;Rorsman P
通讯作者:
Rorsman P