Cited by 109Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsNuclear Structure and Function

Antagonistic effects of telomerase on cancer and aging in K5-mTert transgenic mice

González-Suárez, Eva, Geserick, Christoph, Flores, Juana M, Blasco, María A·2005·Oncogene

Abstract

Many degenerative diseases that occur with aging, as well as premature aging syndromes, are characterized by presenting cells with critically short telomeres. Telomerase reintroduction is envisioned as a putative therapy for diseases characterized by telomere exhaustion. K5-mTert transgenic mice overexpress telomerase in a wide spectrum of tissues. These mice have a higher incidence of both induced and spontaneous tumors, resulting in increased mortality during the first year of life. Here, we show that in spite of this elevated tumor incidence and the initial lower survival, K5-mTert mice show an extension of the maximum lifespan from 1.5 to 3 months, depending on the transgenic line, which represents up to a 10% increase in the mean lifespan compared to wild-type littermates. This longer lifespan is coincidental with a lower incidence of certain age-related degenerative diseases, mainly those related to kidney function and germline integrity. Importantly, these effects of telomerase overexpression cannot be attributed to dramatic differences in telomere length in aged K5-Tert mice compared to wild-type mice, as shown by quantitative telomeric FISH. These findings indicate that telomerase overexpression extends the maximum lifespan of mice.

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Crossref · 10.1038/sj.onc.1208413

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  • Tert transgenic mice with increased telomerase showed improved tissue regeneration and a slight increase in maximum lifespan despite increased cancer mortality.

    “In spite of their increased mortality due to cancer, these transgenic mice did show evidence of improved tissue regeneration as well as a slight increase in maximum life span 68 .”

    From The common biology of cancer and ageing (2007) · cites this paper as [68]

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Authors
González-Suárez, E., Geserick, C., Flores, J. M., & Blasco, M. A.
Affiliations
  • Spanish National Cancer Research Centre (ES)
  • Universidad Complutense de Madrid (ES)
Venue
Oncogene
Published
2005-01-31
Volume
24
Issue
13
Pages
2256-2270
ISSN
  • 0950-9232 (ISSN-L)
  • 1476-5594
OpenAlex
W1983298684
Cited by
109
References
30
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 5 · 2022: 1 · 2021: 3 · 2020: 5 · 2019: 4 · 2018: 4 · 2017: 3 · 2016: 6 · 2015: 1 · 2014: 6 · 2013: 9 · 2012: 11
FWCI
3.80
Type
journal article
Language
en
Open access
closed
Locations
  • Oncogene (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
Keywords
telomerase, lifespan extension, aging, cancer incidence, telomere length, age-related degenerative diseases, renal function
MeSH terms
Aging, Animals, DNA-Binding Proteins, Female, Humans, Hyperplasia, Hypertrophy, Kidney, Longevity, Male, Mice, Inbred C57BL, Mice, Inbred DBA, Mice, Transgenic, RNA, Messenger, Skin, Polymerase Chain Reaction, DNA Primers, Telomerase, Mice

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