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Related Experiment Videos

The p53 tumour suppressor gene.

A J Levine1, J Momand, C A Finlay

  • 1Department of Molecular Biology, Lewis Thomas Laboratory, Princeton University, New Jersey 08544-1014.

Nature
|June 6, 1991
PubMed
Summary

The p53 protein is a key negative regulator of the cell cycle. Its inactivation through mutation or viral interaction is frequently linked to human cancer development, highlighting its critical role in preventing tumors.

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Cell death and differentiation·2015

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Oncology

Background:

  • The cell cycle is a tightly regulated process essential for cell division.
  • Various factors, including proteins, modulate cell cycle progression.
  • The p53 protein is recognized as a significant negative regulator.

Purpose of the Study:

  • To highlight the role of the p53 protein in cell cycle regulation.
  • To underscore the implications of p53 inactivation in cancer pathogenesis.
  • To emphasize the prevalence of p53 alterations in human cancers.

Main Methods:

  • Literature review on cell cycle regulation.
  • Analysis of p53 protein function as a tumor suppressor.
  • Examination of genetic alterations in human cancers.

Main Results:

  • p53 acts as a critical negative regulator of the cell cycle.
  • Inactivation of p53 by mutation or viral oncoproteins disrupts normal cell cycle control.
  • p53 mutations are the most frequent genetic changes observed in human cancers.

Conclusions:

  • The p53 protein is crucial for preventing uncontrolled cell proliferation.
  • Disruption of p53 function is a common mechanism underlying cancer development.
  • Understanding p53's role is vital for cancer research and therapy.

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