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Updated: Sep 20, 2025

Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development
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At the Crossroads of Life and Death: The Proteins That Influence Cell Fate Decisions

Vinesh Dhokia1, John A Y Moss2, Salvador Macip1,3

  • 1Mechanisms of Cancer and Ageing Laboratory, Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, UK.

Cancers
|June 10, 2022
PubMed

Insights

Cellular damage triggers responses like senescence or apoptosis, controlled by tumor suppressor protein p53. Understanding p53

Area of Science:

  • Cellular biology
  • Molecular oncology
  • Biochemistry

Background:

  • Cells respond to damage through programmed cell death (apoptosis) or senescence (proliferative arrest).
  • The tumor suppressor protein p53 and its effectors regulate these cellular fate decisions.
  • The precise mechanisms governing p53's choice between apoptosis and senescence remain unclear.

Purpose of the Study:

  • To review key proteins regulating apoptosis and senescence.
  • To examine critical events determining cell fate after damage.
  • To explore alterations in these proteins during chronic diseases like cancer.

Main Methods:

  • Literature review of key proteins in apoptosis and senescence.
  • Analysis of regulatory networks controlled by tumor suppressor protein p53.
  • Examination of protein activity changes in chronic disease progression.

Main Results:

  • Identified key proteins involved in the induction and regulation of apoptosis and senescence.
  • Highlighted critical molecular events that dictate a cell's fate following damage.
  • Discussed how dysregulation of these proteins contributes to diseases such as cancer.

Conclusions:

  • The decision between apoptosis and senescence is a complex process involving p53.
  • Understanding these pathways is crucial for comprehending disease progression.
  • Further research into p53-mediated cell fate determination could yield therapeutic strategies.
Keywords:
BCL-2apoptosisp53senescence

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