Cited by 71Pancreatic function and diabetesDiabetes and associated disordersDiabetes Treatment and Management

Nervous glucose sensing regulates postnatal β cell proliferation and glucose homeostasis

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Tarussio, David, Metref, Salima, Seyer, Pascal, Mounien, Lourdes, Vallois, David, Magnan, Christophe, Foretz, Marc, Thorens, Bernard·2014·Journal of Clinical Investigation

Abstract

How glucose sensing by the nervous system impacts the regulation of β cell mass and function during postnatal development and throughout adulthood is incompletely understood. Here, we studied mice with inactivation of glucose transporter 2 (Glut2) in the nervous system (NG2KO mice). These mice displayed normal energy homeostasis but developed late-onset glucose intolerance due to reduced insulin secretion, which was precipitated by high-fat diet feeding. The β cell mass of adult NG2KO mice was reduced compared with that of WT mice due to lower β cell proliferation rates in NG2KO mice during the early postnatal period. The difference in proliferation between NG2KO and control islets was abolished by ganglionic blockade or by weaning the mice on a carbohydrate-free diet. In adult NG2KO mice, first-phase insulin secretion was lost, and these glucose-intolerant mice developed impaired glucagon secretion when fed a high-fat diet. Electrophysiological recordings showed reduced parasympathetic nerve activity in the basal state and no stimulation by glucose. Furthermore, sympathetic activity was also insensitive to glucose. Collectively, our data show that GLUT2-dependent control of parasympathetic activity defines a nervous system/endocrine pancreas axis that is critical for β cell mass establishment in the postnatal period and for long-term maintenance of β cell function.

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  • GLUT2 neuronal knockout mice exhibit impaired GSIS, hyperglucagonemia, and decreased beta-cell proliferation and mass compared to controls.

    “One study clearly demonstrated the importance of the nervous system’s ability to regulate islet beta-cell number and function: GLUT2 neuronal knockout mice exhibited impaired glucose-stimulated insulin secretion (GSIS), hyperglucagonemia, and decreased beta-cell proliferation and mass in comparison to controls.166”
  • Treatment of control mice with ganglionic blocker chlorisondamine reduced beta-cell proliferation rate by 50%, but in GLUT2 neuronal knockout mice, chlorisondamine did not further reduce proliferation rate.

    “Importantly, treatment of the control mice with the ganglionic blocker chlorisondamine reduced the proliferation rate of beta-cells by 50%, but in GLUT2 neuronal knockout mice, chlorisondamine did not further reduce the proliferation rate.”
  • Dysfunctional neuronal regulation of pancreatic islets may contribute to impaired GSIS, hyperglucagonemia, and decreased beta-cell proliferation and mass in T2D.

    “T2D patients do not exhibit the cephalic phase of insulin secretion and based on the findings from studies it is possible that dysfunctional neuronal regulation of pancreatic islets contributes to the impaired GSIS, hyperglucagonemia, and decreased beta-cell proliferation and mass observed in this disease.”

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  1. Buijs RM, Chun SJ, Niijima A, Romijn HJ, Nagai K. Parasympathetic and sympathetic control of the pancreas: a role for the suprachiasmatic nucleus and other hypothalamic centers that are involved in the regulation of food intake. J Comp Neurol. 2001; 431(4):405-423.

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Authors
Tarussio, D., Metref, S., Seyer, P., Mounien, L., Vallois, D., Magnan, C., Foretz, M., & Thorens, B.
Affiliations
  • University of Lausanne (CH)
  • Institut de Génomique Fonctionnelle (FR)
  • Aix-Marseille Université (FR)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Thorens, Bernard
Venue
Journal of Clinical Investigation
Published
2013-12-16
Volume
124
Issue
1
Pages
413-424
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2107581350
Cited by
71
References
61
Citations by year
2025: 5 · 2024: 2 · 2023: 3 · 2022: 7 · 2021: 8 · 2020: 6 · 2019: 3 · 2018: 6 · 2017: 9 · 2016: 8 · 2015: 5 · 2014: 9
FWCI
7.23
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
Funders
  • National Science Foundation
  • European Commission
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (113525, 31003A, 128657)
  • Université de Lausanne
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
GLUT2, beta-cell proliferation, beta-cell mass, glucose homeostasis, parasympathetic nerve activity, sympathetic activity, insulin secretion, glucagon secretion, impaired glucose tolerance, high-fat diet, postnatal development, ganglionic blockade, carbohydrate-free diet
MeSH terms
Insulin Secretion, Action Potentials, Animals, Autonomic Fibers, Preganglionic, Energy Metabolism, Female, Ganglia, Parasympathetic, Glucose, Homeostasis, Insulin, Male, Mice, Inbred C57BL, Pancreas, Glucose Intolerance, Mice, Knockout, Cell Proliferation, Insulin-Secreting Cells, Glucose Transporter Type 2, Mice, Mice, 129 Strain

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