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Yeast As a Chassis for Developing Functional Assays to Study Human P53
14:57

Yeast As a Chassis for Developing Functional Assays to Study Human P53

Published on: August 4, 2019

p53, p63 and p73--solos, alliances and feuds among family members

U M Moll1, S Erster, A Zaika

  • 1Department of Pathology, State University of New York at Stony Brook, Stony Brook, NY 11794, USA. umoll@notes.cc.sunysb.edu

Biochimica Et Biophysica Acta
|February 5, 2002
PubMed

Insights

The p53 gene family, including p53, p63, and p73, plays a critical role in cancer prevention and development. These genes form a complex network influencing cellular responses and tumor biology.

Area of Science:

  • Molecular Biology
  • Oncology
  • Genetics

Background:

  • The p53 tumor suppressor is frequently inactivated in human cancers, highlighting its critical role in preventing malignant transformation.
  • The discovery of p63 and p73 has expanded our understanding of a gene family linking developmental and tumor biology.
  • These genes exhibit unique roles and intricate cross-talk, forming a functional network impacting various cellular processes.

Purpose of the Study:

  • To provide an overview of the current research status on the p53 gene family.
  • To explore the functional network and interactions among p53, p63, and p73.
  • To discuss the unique "two-genes-in-one" mechanism of p63 and p73, encoding both agonists and antagonists.

Main Methods:

  • Literature review of recent studies on the p53 gene family.
  • Analysis of biochemical interactions and functional cross-talk among family members.
  • Examination of the "two-genes-in-one" concept for p63 and p73 gene products.

Main Results:

  • p53 inactivation is a common genetic defect in human cancer.
  • p63 and p73 are structural homologs of p53 with distinct and overlapping functions.
  • The p63 and p73 genes encode both activating and inhibiting proteins from the same open reading frame, adding complexity to their function.

Conclusions:

  • The p53 gene family represents a crucial network in both development and cancer.
  • Understanding the intricate interactions within this family is key to unraveling their roles in tumor suppression and progression.
  • The dual agonist/antagonist nature of p63 and p73 offers novel insights into gene regulation and therapeutic strategies.

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