Inducing Cellular Senescence in Mouse Embryonic Fibroblasts (MEFs)

Italo Lorandi1,2,3, Han Li4,5

  • 1Cellular Plasticity in Age-related Pathologies, Department of Developmental and Stem Cell Biology, Institut Pasteur, Paris, France.

Insights

This study details a protocol for inducing cellular senescence in mouse embryonic fibroblasts (MEFs). It covers generating MEFs and using various methods to trigger senescence for research.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Aging Research

Background:

  • Cellular senescence is crucial for understanding aging and disease.
  • Mouse embryonic fibroblasts (MEFs) are a standard model for senescence studies.
  • Heterogeneity in senescence requires robust induction methods.

Purpose of the Study:

  • To provide a detailed protocol for generating mouse embryonic fibroblasts (MEFs).
  • To outline methods for routinely inducing cellular senescence in MEFs.
  • To cover both DNA damage-dependent and independent senescence induction.

Main Methods:

  • Generation of primary MEFs.
  • Induction of senescence via DNA damage (e.g., irradiation, chemotherapy).
  • Induction of senescence via non-DNA damage pathways (e.g., oncogene activation).

Main Results:

  • A reproducible protocol for MEF generation and senescence induction.
  • Demonstration of diverse senescence phenotypes.
  • Establishment of a foundation for studying senescence heterogeneity.

Conclusions:

  • This protocol facilitates the study of senescence mechanisms.
  • It enables research into the heterogeneity of cellular senescence.
  • Provides a valuable tool for aging and cancer research.