Cited by 967Cancer, Hypoxia, and MetabolismAngiogenesis and VEGF in CancerCancer-related Molecular Pathways

The DOI matches its Crossref record; 63 of the 70 references it cites were found in a registry or an index.

Regulation of tumor angiogenesis by p53-induced degradation of hypoxia-inducible factor 1α

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Abstract

The switch to an angiogenic phenotype is a fundamental determinant of neoplastic growth and tumor progression. We demonstrate that homozygous deletion of the p53 tumor suppressor gene via homologous recombination in a human cancer cell line promotes the neovascularization and growth of tumor xenografts in nude mice. We find that p53 promotes Mdm2-mediated ubiquitination and proteasomal degradation of the HIF-1α subunit of hypoxia-inducible factor 1 (HIF-1), a heterodimeric transcription factor that regulates cellular energy metabolism and angiogenesis in response to oxygen deprivation. Loss of p53 in tumor cells enhances HIF-1α levels and augments HIF-1-dependent transcriptional activation of the vascular endothelial growth factor (VEGF) gene in response to hypoxia. Forced expression of HIF-1α in p53-expressing tumor cells increases hypoxia-induced VEGF expression and augments neovascularization and growth of tumor xenografts. These results indicate that amplification of normal HIF-1-dependent responses to hypoxia via loss of p53 function contributes to the angiogenic switch during tumorigenesis.

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Crossref · 10.1101/gad.14.1.34

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Research works printed but not linked: 3

  1. Kubbutat, 1997, Regulation of p53 stability by Mdm2., Nature, 387, 299, 10.1038/387299a0 · DOI · Paper page
  2. Ravi, 1998, p53-mediated repression of nuclear factor κ-B RelA via the transcriptional integrator p 300., Cancer Res., 58, 4531
  3. Zhong, 1999, Overexpression of hypoxia-inducible factor 1α in common human cancers and their metastases., Cancer Res., 59, 5830

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Metadata

Authors
Ravi, R., Mookerjee, B., Bhujwalla, Z. M., Sutter, C. H., Artemov, D., Zeng, Q., Dillehay, L. E., Madan, A., Semenza, G. L., & Bedi, A.
Affiliations
Johns Hopkins University (US)
Venue
Genes & Development
Published
2000-01-01
Volume
14
Issue
1
Pages
34-44
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W4294718043
Cited by
967
References
70
Citations by year
2026: 19 · 2025: 23 · 2024: 35 · 2023: 28 · 2022: 35 · 2021: 35 · 2020: 33 · 2019: 25 · 2018: 30 · 2017: 25 · 2016: 35 · 2015: 41 · 2014: 36 · 2013: 34 · 2012: 32
Type
posted content
Language
en
Open access
Locations
Genes & Development (publishedVersion)
Funders
  • U.S. Department of Defense
  • American Cancer Society
  • National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
tumor angiogenesis, p53, hypoxia-inducible factor-1α, MDM2, ubiquitination, proteasomal degradation, vascular endothelial growth factor, hypoxia, neovascularization, tumor xenografts, angiogenic switch, tumor suppressor

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