Cited by 228Genetics, Aging, and Longevity in Model OrganismsNeurobiology and Insect Physiology ResearchMetabolism, Diabetes, and Cancer

Insulin/IGF-like signalling, the central nervous system and aging

Broughton, Susan, Partridge, Linda·2009·Biochemical Journal

Abstract

Enormous strides in understanding aging have come from the discovery that mutations in single genes can extend healthy life-span in laboratory model organisms such as the yeast Saccharomyces, the fruit fly Drosophila melanogaster, the nematode worm Caenorhabditis elegans and the mouse. IIS [insulin/IGF (insulin-like growth factor)-like signalling] stands out as an important, evolutionarily conserved pathway involved in the determination of lifespan. The pathway has diverse functions in multicellular organisms, and mutations in IIS can affect growth, development, metabolic homoeostasis, fecundity and stress resistance, as well as lifespan. The pleiotropic nature of the pathway and the often negative effects of its disruption mean that the extent, tissue and timing of IIS manipulations are determinants of a positive effect on lifespan. One tissue of particular importance for lifespan extension in diverse organisms is the CNS (central nervous system). Although lowered IIS in the CNS can extend lifespan, IIS is also widely recognized as being neuroprotective and important for growth and survival of neurons. In the present review, we discuss our current understanding of the role of the nervous system in extension of lifespan by altered IIS, and the role of IIS in determination of neuronal function during aging. The nervous system can play both endocrine and cell-autonomous roles in extension of lifespan by IIS, and the effects of IIS on lifespan and neuronal function can be uncoupled to some extent. Tissue-specific manipulation of IIS and the cellular defence mechanisms that it regulates will better define the ways in which IIS affects neuronal and whole-organism function during aging.

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Crossref · 10.1042/bj20082102

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156 of 156 references verified0 citation errors · 0 not checkable

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  • Reduced signalling through the insulin/IGF-1 signalling (IIS) pathway is a strongly conserved mechanism of lifespan extension in worms, flies and mammals.

    “Reduced signalling through the insulin/IGF-1 signalling (IIS) pathway is a strongly conserved mechanism of lifespan extension in worms, flies and mammals (reviewed in ref. 61).”

    From Neural mechanisms of ageing and cognitive decline (2010) · cites this paper as [61]

  • Insulin and IGF-1 can also promote learning and memory in humans and animal models.

    “Insulin and IGF-1 can also promote learning and memory in humans and animal models (61,68).”

    From Neural mechanisms of ageing and cognitive decline (2010) · cites this paper as [61]

  • CNS insulin signaling is important for many aspects of neuronal survival and function.

    “it is now clear that CNS insulin signaling is important for many aspects of neuronal survival and function (Broughton and Partridge, 2009; de la Monte and Wands, 2005; Reagan, 2007; Zhao and Alkon, 2001; Zhao et al., 2004).”

    From The Aβ oligomer hypothesis for synapse failure and memory loss in Alzheimer’s disease (2011) · cites this paper as Broughton and Partridge, 2009

  • The decrease in Igf1 may not affect microglial survival because the IGF1 receptor is found largely on neurons, but it could contribute to neurodegeneration.

    “While this may not affect microglial survival as the IGF1 receptor is found largely on neurons, it could contribute to neurodegeneration, being an important factor in neuronal survival and lifespan across many species (67).”

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Authors
Broughton, S., & Partridge, L.
Affiliations
  • Max Planck Society (DE)
  • University College London (GB)
Venue
Biochemical Journal
Published
2009-01-28
Volume
418
Issue
1
Pages
1-12
ISSN
  • 0264-6021 (ISSN-L)
  • 1470-8728
OpenAlex
W2063014525
Cited by
228
References
156
Citations by year
2026: 2 · 2025: 3 · 2024: 9 · 2023: 1 · 2022: 8 · 2021: 9 · 2020: 12 · 2019: 8 · 2018: 6 · 2017: 9 · 2016: 15 · 2015: 18 · 2014: 20 · 2013: 25 · 2012: 20
FWCI
2.57
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical Journal (publishedVersion)
  • PubMed (publishedVersion)
  • Lancaster EPrints (Lancaster University) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Max Planck Digital Library (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
U.S. Public Health Service (066750/A/01/Z)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
aging, lifespan extension, central nervous system, neuroprotection, neuronal function, hormonal regulation, stress tolerance, metabolic homeostasis, growth and development
MeSH terms
Aging, Animals, Central Nervous System, Humans, Insulin, Models, Biological, Somatomedins, Signal Transduction

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