p73 is transcriptionally regulated by DNA damage, p53, and p73

Xinbin Chen, Y. Zheng, J. Zhu, J. Jiang, J. Wang

Research output: Contribution to journalArticle

79 Scopus citations

Abstract

p73 is a member of the p53 family. Recent studies have shown that DNA damage can stabilize p73 protein and enhance p73-mediated apoptosis in a c-Abl dependent manner. To determine what regulates p73 transcriptionally, we analysed the expression of p73 in several cell lines following genotoxic stresses. We found that p73 is induced in certain cell lines when treated with therapeutic DNA damaging agents. We also found that p53 and p73, but not mutant p53(R249S) and p73β292, directly induce the expression of the p73 gene. In addition, we found one potential p53-binding site in the promoter of the p73 gene. This binding site is responsive to p53, p73, and DNA damage. Taken together, these data suggest that p73 is transcriptionally regulated by DNA damage and p53, and is autoregulated.

Original languageEnglish (US)
Pages (from-to)769-774
Number of pages6
JournalOncogene
Volume20
Issue number6
DOIs
StatePublished - Feb 8 2001
Externally publishedYes

Keywords

  • DNA damage
  • p53
  • p73
  • Transcriptional regulation

ASJC Scopus subject areas

  • Molecular Biology
  • Cancer Research
  • Genetics

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