Cited by 73Telomeres, Telomerase, and SenescenceCancer-related Molecular PathwaysGenetics, Aging, and Longevity in Model Organisms

YPEL3, a p53-Regulated Gene that Induces Cellular Senescence

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Kelley, Kevin D., Miller, Kelly R., Todd, Amber, Kelley, Amy R., Tuttle, Rebecca, Berberich, Steven J.·2010·Cancer Research

Published version of a preprint

Abstract

Cellular senescence, the limited ability of cultured normal cells to divide, can result from cellular damage triggered through oncogene activation (premature senescence) or the loss of telomeres following successive rounds of DNA replication (replicative senescence). Although both processes require a functional p53 signaling pathway, relevant downstream p53 targets have been difficult to identify. Discovery of senescence activators is important because induction of tumor cell senescence may represent a therapeutic approach for the treatment of cancer. In microarray studies in which p53 was reactivated in MCF7 cells, we discovered that Yippee-like-3 (YPEL3), a member of a recently discovered family of putative zinc finger motif coding genes consisting of YPEL1-5, is a p53-regulated gene. YPEL3 expression induced by DNA damage leads to p53 recruitment to a cis-acting DNA response element located near the human YPEL3 promoter. Physiologic induction of YPEL3 results in a substantial decrease in cell viability associated with an increase in cellular senescence. Through the use of RNAi and H-ras induction of cellular senescence, we show that YPEL3 activates cellular senescence downstream of p53. Consistent with its growth suppressive activity, YPEL3 gene expression is repressed in ovarian tumor samples. One mechanism of YPEL3 downregulation in ovarian tumor cell lines seems to be hypermethylation of a CpG island upstream of the YPEL3 promoter. We believe these findings point to YPEL3 being a novel tumor suppressor, which upon induction triggers a permanent growth arrest in human tumor and normal cells. Cancer Res; 70(9); 3566–75. ©2010 AACR.

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  • Transcripts for senescence associated genes including YPEL3, IQGAP2, IL15, AXL, PIK3R1, CDK6, PECAM1 and CXCL16 were significantly upregulated in microglia with increasing β-amyloid load.

    “Transcripts for senescence associated genes including YPEL3, which encodes a protein downstream of p53 in the senescence pathway induced by DNA damage [36], IQGAP2, IL15, AXL, PIK3R1, CDK6, PECAM1 and CXCL16 were significantly upregulated in microglia with increasing β-amyloid load (Fig. 4c, d) [61].”

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Authors
Kelley, K. D., Miller, K. R., Todd, A., Kelley, A. R., Tuttle, R., & Berberich, S. J.
Affiliations
Wright State University (US)
Corresponding author
Berberich, Steven J.
Venue
Cancer Research
Published
2010-04-28
Volume
70
Issue
9
Pages
3566-3575
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2017387751
Cited by
73
References
21
Citations by year
2026: 8 · 2025: 9 · 2024: 9 · 2023: 7 · 2022: 3 · 2021: 5 · 2020: 5 · 2019: 2 · 2018: 3 · 2017: 2 · 2016: 1 · 2015: 3 · 2014: 3 · 2013: 3 · 2012: 3
FWCI
2.60
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • CORE Scholar (Wright State University) (submittedVersion)
  • Journal of Bioresource Management (submittedVersion, cc-by)
Funders
National Cancer Institute (CA-64430, R01CA064430, R29CA064430)
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, p53, tumor suppressor, zinc finger genes, DNA damage response, premature senescence, replicative senescence, H-Ras, CpG island hypermethylation, ovarian neoplasms, MCF-7 cells, growth arrest
MeSH terms
Humans, Neoplasms, Gene Expression Regulation, Neoplastic, Tumor Suppressor Protein p53, Cellular Senescence, CpG Islands, DNA Methylation, Tumor Suppressor Proteins, HCT116 Cells, Cell Line, Tumor, Hep G2 Cells

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