Cited by 106Genetics, Aging, and Longevity in Model OrganismsGDF15 and Related BiomarkersTelomeres, Telomerase, and Senescence

hNAG-1 increases lifespan by regulating energy metabolism and insulin/IGF-1/mTOR signaling

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Wang, Xingya, Chrysovergis, Kali, Kosak, Justin, Kissling, Grace, Streicker, Mike, Moser, Glenda, Li, Ruifang, Eling, Thomas E.·2014·Aging

Abstract

Nonsteroidal anti-inflammatory drug-activated gene (NAG-1) or GDF15 is a divergent member of the transforming growth factor beta (TGF-β) superfamily and mice expressing hNAG-1/hGDF15 have been shown to be resistant to HFD-induced obesity and inflammation. This study investigated if hNAG-1 increases lifespan in mice and its potential mechanisms. Here we report that female hNAG-1 mice had significantly increased both mean and median life spans in two transgenic lines, with a larger difference in life spans in mice on a HFD than on low fat diet. hNAG-1 mice displayed significantly reduced body and adipose tissue weight, lowered serum IGF-1, insulin and glucose levels, improved insulin sensitivity, and increased oxygen utilization, oxidative metabolism and energy expenditure. Gene expression analysis revealed significant differences in conserved gene pathways that are important regulators of longevity, including IGF-1, p70S6K, and PI3K/Akt signaling cascades. Phosphorylation of major components of IGF-1/mTOR signaling pathway was significantly lower in hNAG-1mice. Collectively, hNAG-1 is an important regulator of mammalian longevity and may act as a survival factor. Our study suggests that hNAG-1 has potential therapeutic uses in obesity-related diseases where life span is frequently shorter.

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Authors
Wang, X., Chrysovergis, K., Kosak, J., Kissling, G., Streicker, M., Moser, G., Li, R., & Eling, T. E.
Affiliations
  • Zhejiang Chinese Medical University (CN)
  • National Institute of Environmental Health Sciences (US)
  • Integrated Laboratory Systems, Inc. (US)
Corresponding author
Eling, Thomas E.
Venue
Aging
Published
2014-08-28
Volume
6
Issue
8
Pages
690-704
ISSN
1945-4589 (ISSN-L)
OpenAlex
W2166617870
Cited by
106
References
36
Citations by year
2026: 3 · 2025: 5 · 2024: 5 · 2023: 9 · 2022: 9 · 2021: 14 · 2020: 19 · 2019: 10 · 2018: 10 · 2017: 6 · 2016: 8 · 2015: 7 · 2014: 1
FWCI
2.51
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Aging (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Environmental Health Sciences (Z01ES010016, Z01-ES010016-14)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Rheumatology › GDF15 and Related Biomarkers
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
GDF15, lifespan extension, longevity, energy metabolism, high-fat diet, obesity, insulin sensitivity, oxidative metabolism, energy expenditure, PI3K/Akt signaling, p70S6K, adipose tissue, transgenic mice
MeSH terms
Animals, Body Weight, Energy Metabolism, Female, Insulin, Insulin Resistance, Insulin-Like Growth Factor I, Longevity, Phosphorylation, Signal Transduction, Mice, Growth Differentiation Factor 15, TOR Serine-Threonine Kinases

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