Cited by 35Fibroblast Growth Factor ResearchPancreatic function and diabetesRegulation of Appetite and Obesity

A Genetic Screen Identifies Hypothalamic Fgf15 as a Regulator of Glucagon Secretion

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Picard, Alexandre, Soyer, Josselin, Berney, Xavier, Tarussio, David, Quenneville, Simon, Jan, Maxime, Grouzmann, Eric, Burdet, Frédéric +2 more·2016·Cell Reports

Abstract

The counterregulatory response to hypoglycemia, which restores normal blood glucose levels to ensure sufficient provision of glucose to the brain, is critical for survival. To discover underlying brain regulatory systems, we performed a genetic screen in recombinant inbred mice for quantitative trait loci (QTL) controlling glucagon secretion in response to neuroglucopenia. We identified a QTL on the distal part of chromosome 7 and combined this genetic information with transcriptomic analysis of hypothalami. This revealed Fgf15 as the strongest candidate to control the glucagon response. Fgf15 was expressed by neurons of the dorsomedial hypothalamus and the perifornical area. Intracerebroventricular injection of FGF19, the human ortholog of Fgf15, reduced activation by neuroglucopenia of dorsal vagal complex neurons, of the parasympathetic nerve, and lowered glucagon secretion. In contrast, silencing Fgf15 in the dorsomedial hypothalamus increased neuroglucopenia-induced glucagon secretion. These data identify hypothalamic Fgf15 as a regulator of glucagon secretion.

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  • Fgf15 can signal through the brain to modulate glucose homeostasis and glucagon secretion.

    “Importantly, Fgf15 can also signal through the brain to modulate glucose homeostasis 45 and glucagon secretion 46.”

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Authors
Picard, A., Soyer, J., Berney, X., Tarussio, D., Quenneville, S., Jan, M., Grouzmann, E., Burdet, F., Ibberson, M., & Thorens, B.
Affiliations
  • University of Lausanne (CH)
  • SIB Swiss Institute of Bioinformatics (CH)
  • Centre Hospitalier Universitaire Vaudois (CH)
Corresponding author
Thorens, Bernard
Venue
Cell Reports
Publisher
Elsevier BV
Published
2016-11
Volume
17
Issue
7
Pages
1795-1806
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2556766149
Cited by
35
References
54
Citations by year
2026: 3 · 2025: 3 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 3 · 2018: 4 · 2017: 1
FWCI
1.39
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • SERVAL (Université de Lausanne) (publishedVersion, other-oa)
  • IRIS (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Swiss National Science Foundation (3100A0B-128657, CRSII3-136201)
  • European Research Council (268946)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fibroblast Growth Factor Research
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
FGF15, glucagon secretion, hypothalamus, dorsomedial hypothalamus, perifornical area, FGF19, dorsomedial medulla, parasympathetic neurons, quantitative trait loci, recombinant inbred mouse strains, chromosome 7, glucose homeostasis
MeSH terms
Aging, Animals, Deoxyglucose, Fibroblast Growth Factors, Genetic Testing, Glucagon, Hypothalamus, Mice, Inbred C57BL, Parasympathetic Nervous System, Genome, Gene Silencing, Chromosomes, Mammalian, Quantitative Trait Loci

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