Nature Communications (Feb 2018)

α-cell glucokinase suppresses glucose-regulated glucagon secretion

  • Davide Basco,
  • Quan Zhang,
  • Albert Salehi,
  • Andrei Tarasov,
  • Wanda Dolci,
  • Pedro Herrera,
  • Ioannis Spiliotis,
  • Xavier Berney,
  • David Tarussio,
  • Patrik Rorsman,
  • Bernard Thorens

DOI
https://doi.org/10.1038/s41467-018-03034-0
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 9

Abstract

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Glucagon secretion is promoted during hypoglycemia and inhibited by increased glucose levels. Here, Basco et al. show that glucokinase suppresses glucose-regulated glucagon secretion by modulating the intracellular ATP/ADP ratio and the closure of KATP channels in α-cells.