Cited by 30Genetics, Aging, and Longevity in Model OrganismsMetabolism, Diabetes, and CancerTelomeres, Telomerase, and Senescence

Impairment of insulin signalling in peripheral tissue fails to extend murine lifespan

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Merry, Troy L., Kuhlow, Doreen, Laube, Beate, Pöhlmann, Doris, Pfeiffer, Andreas F. H., Kahn, C. Ronald, Ristow, Michael, Zarse, Kim·2017·Aging Cell

Abstract

Summary: Impaired insulin/ IGF 1 signalling has been shown to extend lifespan in model organisms ranging from yeast to mammals. Here we sought to determine the effect of targeted disruption of the insulin receptor ( IR ) in non‐neuronal tissues of adult mice on the lifespan. We induced hemizygous (Per IRKO +/− ) or homozygous (Per IRKO −/− ) disruption of the IR in peripheral tissue of 15‐weeks‐old mice using a tamoxifen‐inducible Cre transgenic mouse with only peripheral tissue expression, and subsequently monitored glucose metabolism, insulin signalling and spontaneous death rates over 4 years. Complete peripheral IR disruption resulted in a diabetic phenotype with increased blood glucose and plasma insulin levels in young mice. Although blood glucose levels returned to normal, and fat mass was reduced in aged Per IRKO −/− mice, their lifespan was reduced. By contrast, heterozygous disruption had no effect on lifespan. This was despite young male Per IRKO +/− mice showing reduced fat mass and mild increase in hepatic insulin sensitivity. In conflict with findings in metazoans like Caenorhabditis elegans and Drosophila melanogaster , our results suggest that heterozygous impairment of the insulin signalling limited to peripheral tissues of adult mice fails to extend lifespan despite increased systemic insulin sensitivity, while homozygous impairment shortens lifespan.

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  • The same metabolic phenotype was not observed when the insulin receptor was disrupted in liver, adipose, and muscle tissues of adult mice.

    “Interestingly, the same phenotype was not observed when the insulin receptor was disrupted in liver, adipose and muscle tissues in adult mice29, denoting the complex role of the mammalian IIS pathway.”

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Authors
Merry, T. L., Kuhlow, D., Laube, B., Pöhlmann, D., Pfeiffer, A. F. H., Kahn, C. R., Ristow, M., & Zarse, K.
Affiliations
  • University of Auckland (NZ)
  • German Institute of Human Nutrition (DE)
  • ETH Zurich (CH)
  • Joslin Diabetes Center (US)
Corresponding author
Ristow, Michael
Venue
Aging Cell
Publisher
Wiley
Published
2017-05-22
Volume
16
Issue
4
Pages
761-772
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2618151420
Cited by
30
References
50
Citations by year
2026: 1 · 2024: 2 · 2023: 9 · 2022: 6 · 2021: 3 · 2020: 3 · 2019: 4 · 2017: 1
FWCI
0.93
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • ResearchSpace (University of Auckland) (submittedVersion, cc-by)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by)
  • ETH Zürich Research Collection (cc-by)
Funders
  • Bundesministerium für Bildung und Forschung (BMBF 0315581)
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (SNF 31003A_156031)
  • Novartis Foundation (14C149)
  • National Institutes of Health (NIH R01 DK031036)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
insulin signaling, insulin receptor, lifespan extension, diabetes mellitus, glucose metabolism, fat mass, hepatic insulin sensitivity, aging
MeSH terms
Adipose Tissue, Animals, Blood Glucose, Heterozygote, Homozygote, Insulin, Longevity, Male, Mutation, Receptor, Insulin, Signal Transduction, Gene Expression, Mice, Knockout, Integrases, Mice

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