Cited by 154Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsTGF-β signaling in diseases

Plasminogen activator inhibitor 1—insulin-like growth factor binding protein 3 cascade regulates stress-induced senescence

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Elzi, David J., Lai, Yanlai, Song, Meihua, Hakala, Kevin, Weintraub, Susan T., Shiio, Yuzuru·2012·Proceedings of the National Academy of Sciences

Abstract

Cellular senescence is widely believed to play a key role in tumor suppression, but the molecular pathways that regulate senescence are only incompletely understood. By using a secretome proteomics approach, we identified insulin-like growth factor binding protein 3 (IGFBP3) as a secreted mediator of breast cancer senescence upon chemotherapeutic drug treatment. The senescence-inducing activity of IGFBP3 is inhibited by tissue-type plasminogen activator-mediated proteolysis, which is counteracted by plasminogen activator inhibitor 1 (PAI-1), another secreted mediator of senescence. We demonstrate that IGFBP3 is a critical downstream target of PAI-1-induced senescence. These results suggest a role for an extracellular cascade of secreted proteins in the regulation of cellular senescence.

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Authors
Elzi, D. J., Lai, Y., Song, M., Hakala, K., Weintraub, S. T., & Shiio, Y.
Affiliations
The University of Texas at San Antonio Health Science Center (US)
Venue
Proceedings of the National Academy of Sciences
Published
2012-07-09
Volume
109
Issue
30
Pages
12052-12057
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2074103997
Cited by
154
References
34
Citations by year
2026: 6 · 2025: 12 · 2024: 17 · 2023: 11 · 2022: 11 · 2021: 11 · 2020: 11 · 2019: 11 · 2018: 10 · 2017: 13 · 2016: 15 · 2015: 13 · 2014: 8 · 2013: 5
FWCI
5.58
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (CA054174)
  • University of Texas Health Science Center at San Antonio
  • National Institute on Aging (R21AG029587, AG029587)
  • National Cancer Institute (CA-054174, P30CA054174, R01CA125020, CA125020, CA137568, R21CA137568)
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 › TGF-β signaling in diseases
Keywords
cellular senescence, insulin-like growth factor binding protein-3, plasminogen activator inhibitor-1, tissue plasminogen activator, breast cancer, chemotherapy-induced senescence, secretome, tumor suppression, proteolysis
MeSH terms
Analysis of Variance, beta-Galactosidase, Culture Media, Doxorubicin, Enzyme-Linked Immunosorbent Assay, Fluorescent Antibody Technique, Humans, Immunohistochemistry, Neoplasms, Tissue Plasminogen Activator, Stress, Physiological, Tumor Cells, Cultured, Immunoblotting, Cellular Senescence, Plasminogen Activator Inhibitor 1, DNA Primers, Insulin-Like Growth Factor Binding Protein 3, Reverse Transcriptase Polymerase Chain Reaction, RNA, Small Interfering, Proteomics, Cell Line, Tumor, Proteolysis

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