Cited by 102Telomeres, Telomerase, and SenescenceCancer-related Molecular PathwaysGenetics, Aging, and Longevity in Model Organisms

WNT16B Is a New Marker of Cellular Senescence That Regulates p53 Activity and the Phosphoinositide 3-Kinase/AKT Pathway

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Binet, Romuald, Ythier, Damien, Robles, Ana I., Collado, Manuel, Larrieu, Delphine, Fonti, Claire, Brambilla, Elisabeth, Brambilla, Christian +3 more·2009·Cancer Research

Published version of a preprint

Abstract

Senescence is a tumor suppression mechanism that is induced by several stimuli, including oncogenic signaling and telomere shortening, and controlled by the p53/p21WAF1 signaling pathway. Recently, a critical role for secreted factors has emerged, suggesting that extracellular signals are necessary for the onset and maintenance of senescence. Conversely, factors secreted by senescent cells may promote tumor growth. By using expression profiling techniques, we searched for secreted factors that were overexpressed in fibroblasts undergoing replicative senescence. We identified WNT16B, a member of the WNT family of secreted proteins. We found that WNT16B is overexpressed in cells undergoing stress-induced premature senescence and oncogene-induced senescence in both MRC5 cell line and the in vivo murine model of K-RasV12–induced senescence. By small interfering RNA experiments, we observed that both p53 and WNT16B are necessary for the onset of replicative senescence. WNT16B expression is required for the full transcriptional activation of p21WAF1. Moreover, WNT16B regulates activation of the phosphoinositide 3-kinase (PI3K)/AKT pathway. Overall, we identified WNT16B as a new marker of senescence that regulates p53 activity and the PI3K/AKT pathway and is necessary for the onset of replicative senescence. [Cancer Res 2009;69(24):9183–91]

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  • Secreted WNT16B is an important enforcer of the senescence growth arrest of human fibroblasts in culture and of mouse cells that senesce in vivo due to activated RAS.

    “Likewise, secreted WNT16B is an important enforcer of the senescence growth arrest of human fibroblasts in culture, as well as that of mouse cells that senesce in vivo owing to expression of an activated RAS oncogene (138).”

    From Aging, Cellular Senescence, and Cancer (2013) · cites this paper as [138]

    The Results section, “WNT16B is necessary for the onset of replicative senescence” (page unavailable), reports that WNT16B knockdown let cultured human fibroblasts bypass senescence and continue proliferating. The Results section, “WNT16 is activated in OIS in vitro and in vivo” (page unavailable), finds WNT16B overexpressed in activated-K-Ras mouse lung lesions, but identifies it there as a marker; it does not show that WNT16B enforces growth arrest in those mouse cells. (LLM, conf=0.90)

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Authors
Binet, R., Ythier, D., Robles, A. I., Collado, M., Larrieu, D., Fonti, C., Brambilla, E., Brambilla, C., Serrano, M., Harris, C. C., & Pedeux, R.
Affiliations
Inserm (FR)
Corresponding author
Pedeux, Rémy
Venue
Cancer Research
Published
2009-12-14
Volume
69
Issue
24
Pages
9183-9191
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2123104757
Cited by
101
References
43
Citations by year
2026: 1 · 2025: 5 · 2024: 5 · 2023: 3 · 2022: 3 · 2021: 4 · 2020: 7 · 2019: 6 · 2018: 3 · 2017: 5 · 2016: 9 · 2015: 9 · 2014: 10 · 2013: 8 · 2012: 6
FWCI
5.10
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (Z01BC005794)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
cellular senescence, replicative senescence, stress-induced premature senescence, oncogene-induced senescence, p53, p21, PI3K/Akt signaling, secreted factors, fibroblasts, tumor suppression, senescence-associated secretory phenotype
MeSH terms
Phosphoinositide-3 Kinase Inhibitors, Chromones, Enzyme Inhibitors, Fibroblasts, Humans, Morpholines, Transcription, Genetic, Transfection, Tumor Suppressor Protein p53, Cellular Senescence, Phosphatidylinositol 3-Kinases, Oligonucleotide Array Sequence Analysis, Gene Expression Profiling, RNA, Small Interfering, Cyclin-Dependent Kinase Inhibitor p21, Proto-Oncogene Proteins c-akt, Wnt Proteins

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