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Updated: Dec 21, 2025

Measuring Composition of CD95 Death-Inducing Signaling Complex and Processing of Procaspase-8 in this Complex
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Measuring Composition of CD95 Death-Inducing Signaling Complex and Processing of Procaspase-8 in this Complex

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CD95 Structure, Aggregation and Cell Signaling.

Nicolas Levoin1, Mickael Jean2, Patrick Legembre3

  • 1Bioprojet Biotech, Saint-Grégoire, France.

Frontiers in Cell and Developmental Biology
|May 21, 2020
PubMed
Summary
This summary is machine-generated.

The CD95 receptor and its ligand CD95L mediate diverse cell signaling, from death to proliferation. Understanding CD95 aggregation and post-translational modifications is key for novel therapies in inflammation and cancer.

Keywords:
Fasaggregationapoptosisinflammationmigrationstoichiometry

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Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • CD95 (APO-1/Fas) is a transmembrane receptor crucial for regulating cell fate.
  • Ligand binding to CD95 initiates signaling cascades impacting cell motility, differentiation, and apoptosis.
  • The receptor's diverse biological roles, despite lacking enzymatic activity, necessitate further investigation into its regulatory mechanisms.

Purpose of the Study:

  • To review the mechanisms governing CD95 receptor aggregation and signaling.
  • To explore the role of CD95 domains, post-translational modifications, and ligand forms in cellular responses.
  • To highlight the therapeutic potential of understanding CD95 signaling in inflammatory diseases and cancers.

Main Methods:

  • Literature review of studies on CD95 structure, function, and signaling pathways.
  • Analysis of research on CD95 post-translational modifications and membrane localization.
  • Examination of studies investigating different CD95 ligand (CD95L) forms and their effects.

Main Results:

  • CD95 aggregation and conformation are critical for initiating downstream signaling.
  • Post-translational modifications and membrane sub-domain localization fine-tune CD95-mediated responses.
  • Different forms of CD95L can elicit distinct signaling outcomes, influencing cell fate.
  • The CD95 pathway's dual role in promoting cell death and proliferation/motility is highlighted.

Conclusions:

  • CD95 signaling complexity arises from intricate receptor-ligand interactions, post-translational modifications, and cellular context.
  • Targeting CD95 aggregation and signaling pathways offers promising therapeutic strategies for chronic inflammatory disorders and cancers.
  • Further research into CD95 biology is essential for developing effective treatments.