Cited by 826Genetics, Aging, and Longevity in Model OrganismsGrowth Hormone and Insulin-like Growth FactorsTelomeres, Telomerase, and Senescence

Lifespan extension and delayed immune and collagen aging in mutant mice with defects in growth hormone production

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Flurkey, Kevin, Papaconstantinou, John, Miller, Richard A., Harrison, David E.·2001·Proceedings of the National Academy of Sciences

Abstract

Single-gene mutations that extend lifespan provide valuable tools for the exploration of the molecular basis for age-related changes in cell and tissue function and for the pathophysiology of age-dependent diseases. We show here that mice homozygous for loss-of-function mutations at the Pit1 (Snell dwarf) locus show a >40% increase in mean and maximal longevity on the relatively long-lived (C3H/HeJ × DW/J)F 1 background. Mutant dw J /dw animals show delays in age-dependent collagen cross-linking and in six age-sensitive indices of immune system status. These findings thus demonstrate that a single gene can control maximum lifespan and the timing of both cellular and extracellular senescence in a mammal. Pituitary transplantation into dwarf mice does not reverse the lifespan effect, suggesting that the effect is not due to lowered prolactin levels. In contrast, homozygosity for the Ghrhr lit mutation, which like the Pit1 dw mutation lowers plasma growth hormone levels, does lead to a significant increase in longevity. Male Snell dwarf mice, unlike calorically restricted mice, become obese and exhibit proportionately high leptin levels in old age, showing that their exceptional longevity is not simply due to alterations in adiposity per se . Further studies of the Pit1 dw mutant, and the closely related, long-lived Prop-1 df (Ames dwarf) mutant, should provide new insights into the hormonal regulation of senescence, longevity, and late life disease.

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  • In mice, reducing growth hormone signalling from the hypothalamic-pituitary axis extends lifespan.

    “In mice, reducing the growth hormone signalling from the hypothalamic–pituitary axis extends lifespan (93).”

    From Neural mechanisms of ageing and cognitive decline (2010) · cites this paper as [93]

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  1. [15]Witkowski J M, Miller R A. J Immunol. 1993;150:1296–1306. [PubMed] [Google Scholar]
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Authors
Flurkey, K., Papaconstantinou, J., Miller, R. A., & Harrison, D. E.
Affiliations
University of Michigan (US)
Venue
Proceedings of the National Academy of Sciences
Published
2001-05-22
Volume
98
Issue
12
Pages
6736-6741
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2159979637
Cited by
826
References
34
Citations by year
2026: 8 · 2025: 13 · 2024: 17 · 2023: 24 · 2022: 21 · 2021: 23 · 2020: 25 · 2019: 24 · 2018: 23 · 2017: 28 · 2016: 22 · 2015: 37 · 2014: 28 · 2013: 32 · 2012: 30
FWCI
16.13
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • The Mouseion at the JAXlibrary (Jackson Laboratory) (submittedVersion)
Funders
  • National Institutes of Health (5r01ag011643-05, 1f32ag005429-01)
  • National Institute on Aging (P60AG008808, AG05429, AG-11643, AG 16622, AG-08808, R01AG016622, P30AG024832)
  • National Cancer Institute (CA34190)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
lifespan extension, growth hormone deficiency, immunosenescence, collagen cross-linking, cellular senescence, pituitary transplantation, prolactin, leptin, obesity, longevity, single-gene mutations
MeSH terms
Aging, Animals, Body Weight, Collagen, DNA-Binding Proteins, Female, Insulin-Like Growth Factor I, Longevity, Male, Mice, Inbred C3H, Mice, Mutant Strains, Pituitary Gland, Growth Hormone, T-Lymphocytes, Transcription Factors, T-Lymphocyte Subsets, Leptin, Transcription Factor Pit-1, Mice

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