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CD95 ligand--death factor and costimulatory molecule?
O Janssen1, J Qian, A Linkermann
1Institute for Immunology, Medical Center Schleswig-Holstein, Campus Kiel, Michaelisstrasse 5, D-24105 Kiel, Germany. ojanssen@email.uni-kiel.de
Cell Death and Differentiation
|August 2, 2003
Summary
The CD95 ligand (CD95L) regulates cell death and survival, impacting immunity and cancer. Understanding CD95L
Area of Science:
- Immunology
- Molecular Biology
- Cell Biology
Background:
- The CD95 ligand (CD95L) is a key regulator of apoptosis, immune privilege, and tumor cell survival.
- CD95L also functions as a costimulatory molecule in T-cell activation.
- Dysregulation of CD95L expression and shedding is linked to various diseases, highlighting the CD95/CD95L system's pathophysiological importance.
Purpose of the Study:
- To review current knowledge, hypotheses, and controversies surrounding CD95L.
- To explore the distinct roles of membrane-bound and soluble CD95L.
- To examine the intracellular dynamics and signaling capabilities of CD95L.
Main Methods:
- Literature review of existing research on CD95L.
- Analysis of molecular interactions and protein trafficking pathways.
- Synthesis of data on CD95L's multifunctional roles.
Main Results:
- CD95L is a multifunctional ligand with diverse roles in cell death, survival, and immune responses.
- Both membrane-bound and soluble forms of CD95L exert distinct biological effects.
- Intracellular trafficking and signaling networks significantly influence CD95L function.
Conclusions:
- The CD95/CD95L system is critical in numerous biological processes and diseases.
- Further research into CD95L's complex regulatory mechanisms is essential for clinical applications.
- Understanding CD95L's molecular interactions offers therapeutic potential.