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Yeast As a Chassis for Developing Functional Assays to Study Human P53
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p53 and Development: Shedding Light on an Evolutionary Enigma

James J Manfredi1

  • 1Department of Oncological Sciences and the Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.

Developmental Cell
|July 24, 2019
PubMed

Insights

Targeting p53 hyperactivity in specific cellular locations in vivo causes varied, cell-type-specific effects. This research highlights p53

Area of Science:

  • Cellular biology
  • Developmental biology
  • Genetics

Background:

  • The tumor suppressor protein p53 plays a critical role in cellular responses to stress.
  • Dysregulation of p53 is implicated in various human diseases, including developmental syndromes.

Purpose of the Study:

  • To investigate the in vivo consequences of compartmentalized p53 hyperactivity.
  • To determine if p53's role in development is conserved across species.

Main Methods:

  • Utilized genetic manipulation to induce p53 hyperactivity in specific subcellular compartments in vivo.
  • Observed and analyzed resulting cell-type-specific phenotypes.

Main Results:

  • Compartmentalization of p53 hyperactivity led to diverse and distinct phenotypes.
  • Phenotypes were specific to the cell type in which p53 hyperactivity was targeted.

Conclusions:

  • p53's function in development is context-dependent and influenced by its subcellular localization.
  • Findings support a role for p53 in human developmental syndromes and suggest evolutionary conservation.

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