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Updated: Aug 30, 2026

Measuring Composition of CD95 Death-Inducing Signaling Complex and Processing of Procaspase-8 in this Complex
Published on: August 2, 2021
Function and regulation of the CD95 (APO-1/Fas) ligand in the immune system
Min Li-Weber1, Peter H Krammer
1Tumor Immunology Program G0300, German Cancer Research Center (DKFZ), INF 280, D-69120 Heidelberg, Germany. m.li-weber@dkfz-heidelberg.de
Insights
The CD95/CD95L system regulates immune homeostasis and tolerance. Understanding its molecular mechanisms and transcription factors is key to developing therapies for related diseases.
Area of Science:
- Immunology
- Molecular Biology
Background:
- The CD95/CD95L pathway is crucial for immune homeostasis and peripheral tolerance.
- Dysregulation of this system is linked to severe diseases.
Purpose of the Study:
- To review the role of the CD95/CD95L system in immunity.
- To focus on the signals and transcription factors regulating CD95L expression.
Main Methods:
- Literature review of CD95/CD95L system functions.
- Analysis of transcription factors (NF-AT, Egr, NF-kappaB, AP-1, c-Myc, Nur77, IRFs, SP-1, ALG-4, ROR(gamma)t, CIITA) involved in CD95L expression.
Main Results:
- The CD95/CD95L system plays a vital role in terminating immune responses.
- Identified multiple transcription factors that regulate CD95L expression.
Conclusions:
- A deep understanding of CD95L molecular mechanisms can guide therapeutic strategies.
- Targeting the CD95/CD95L pathway offers potential for treating related diseases.
Abstract:
CD95/CD95L mediated apoptosis is an important mechanism of immune homeostasis. It is instrumental for termination of an immune response and mainly be involved in peripheral tolerance. Dysregulation of the CD95/CD95L system leads to severe diseases. In this review, we present a survey of the role of the CD95/CD95L system in the immune system and, particularly, focus on the signals and transcription factors (NF-AT, Egr, NF-kappaB, AP-1, c-Myc, Nur77, IRFs, SP-1, ALG-4, ROR(gamma)t, and CIITA) involved in CD95L expression. It should also be evident from this review that a profound insight into the molecular mechanisms of CD95L activation should allow to explore potential therapeutic means to treat CD95/CD95L-dependent diseases.
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