p73, the "Assistant" Guardian of the Genome?

Gerry Melino

Research output: Contribution to journalArticlepeer-review


Although p53 is clearly involved in the salvage pathway to DNA damage, its frequent mutations do not explain the efficacy of radiotherapy and chemotherapy. Indeed, around 50% of all human cancers show mutations in p53, and a further fraction show a functional inactivation of the protein. Nevertheless, patients seem to respond to therapy that would otherwise require a functional p53. At least in part, these responses could be explained by the pathway mediated by p73. This mechanism is parallel to, but independent of the p53 pathway. Several pieces of evidence show a significant interaction between these two proteins. Therefore, while p53 can be rightly defined as the guardian of the genome, we could think of p73 as the "assistant" guardian of the genome!

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalAnnals of the New York Academy of Sciences
Publication statusPublished - 2003


  • Apoptosis
  • Cell cycle
  • Cell death
  • DNA damage

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • History and Philosophy of Science


Dive into the research topics of 'p73, the "Assistant" Guardian of the Genome?'. Together they form a unique fingerprint.

Cite this