Abscisic acid is an endogenous stimulator of insulin release from human pancreatic islets with cyclic ADP ribose as second messenger

Santina Bruzzone, Nicoletta Bodrato, Cesare Usai, Lucrezia Guida, Iliana Moreschi, Rita Nano, Barbara Antonioli, Floriana Fruscione, Mirko Magnone, Sonia Scarfì, Antonio De Flora, Elena Zocchi

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Abstract

Abscisic acid (ABA) is a plant stress hormone recently identified as an endogenous pro-inflammatory cytokine in human granulocytes. Because paracrine signaling between pancreatic β cells and inflammatory cells is increasingly recognized as a pathogenetic mechanism in the metabolic syndrome and type II diabetes, we investigated the effect of ABA on insulin secretion. Nanomolar ABA increases glucose-stimulated insulin secretion from RIN-m and INS-1 cells and from murine and human pancreatic islets. The signaling cascade triggered by ABA in insulin-releasing cells sequentially involves a pertussis toxin-sensitive G protein, cAMP overproduction, protein kinase A-mediated activation of the ADP-ribosyl cyclase CD38, and cyclic ADP-ribose overproduction. ABA is rapidly produced and released from human islets, RIN-m, and INS-1 cells stimulated with high glucose concentrations. In conclusion, ABA is an endogenous stimulator of insulin secretion in human and murine pancreatic β cells. Autocrine release of ABA by glucose-stimulated pancreatic β cells, and the paracrine production of the hormone by activated granulocytes and monocytes suggest that ABA may be involved in the physiology of insulin release as well as in its dysregulation under conditions of inflammation.

Original languageEnglish
Pages (from-to)32188-32197
Number of pages10
JournalJournal of Biological Chemistry
Volume283
Issue number47
DOIs
Publication statusPublished - Nov 21 2008

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Cyclic ADP-Ribose
Abscisic Acid
Second Messenger Systems
Islets of Langerhans
Insulin
Granulocytes
Glucose
ADP-ribosyl Cyclase
Paracrine Communication
Hormones
Plant Growth Regulators
Pertussis Toxin
Physiology
Medical problems
Cyclic AMP-Dependent Protein Kinases
GTP-Binding Proteins
Type 2 Diabetes Mellitus
Monocytes
Chemical activation
Cytokines

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Molecular Biology

Cite this

Abscisic acid is an endogenous stimulator of insulin release from human pancreatic islets with cyclic ADP ribose as second messenger. / Bruzzone, Santina; Bodrato, Nicoletta; Usai, Cesare; Guida, Lucrezia; Moreschi, Iliana; Nano, Rita; Antonioli, Barbara; Fruscione, Floriana; Magnone, Mirko; Scarfì, Sonia; De Flora, Antonio; Zocchi, Elena.

In: Journal of Biological Chemistry, Vol. 283, No. 47, 21.11.2008, p. 32188-32197.

Research output: Contribution to journalArticle

Bruzzone, S, Bodrato, N, Usai, C, Guida, L, Moreschi, I, Nano, R, Antonioli, B, Fruscione, F, Magnone, M, Scarfì, S, De Flora, A & Zocchi, E 2008, 'Abscisic acid is an endogenous stimulator of insulin release from human pancreatic islets with cyclic ADP ribose as second messenger', Journal of Biological Chemistry, vol. 283, no. 47, pp. 32188-32197. https://doi.org/10.1074/jbc.M802603200
Bruzzone, Santina ; Bodrato, Nicoletta ; Usai, Cesare ; Guida, Lucrezia ; Moreschi, Iliana ; Nano, Rita ; Antonioli, Barbara ; Fruscione, Floriana ; Magnone, Mirko ; Scarfì, Sonia ; De Flora, Antonio ; Zocchi, Elena. / Abscisic acid is an endogenous stimulator of insulin release from human pancreatic islets with cyclic ADP ribose as second messenger. In: Journal of Biological Chemistry. 2008 ; Vol. 283, No. 47. pp. 32188-32197.
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