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Published on: February 16, 2015
Mechanisms of CD95 (APO-1/Fas)-mediated apoptosis
1Tumor Immunology Program, German Cancer Research Center, Im NeuenheimerFeld 280, D-69120, Heidelberg, Germany. m.peter@dkfz-heidelberg.de
Current Opinion in Immunology
|October 31, 1998
Abstract:
This review covers recent advances of CD95 signaling. It focuses on CD95-interacting molecules, formation of the death inducing signaling complex and the role of caspases, particularly caspase-8, and their death substrates. We also discuss the relevance of mitochondria in the CD95-mediated apoptotic process and how viral proteins interfere with crucial steps of this signaling pathway.
Insights
This review explores CD95 signaling, detailing its interacting molecules, the death-inducing signaling complex, and caspase roles in apoptosis. It also examines mitochondrial involvement and viral interference with this pathway.
Area of Science:
- Cell biology
- Molecular biology
- Immunology
Background:
- CD95 (also known as Fas or APO-1) is a crucial receptor involved in regulating apoptosis.
- Dysregulation of CD95 signaling is implicated in various diseases, including cancer and autoimmune disorders.
- Understanding CD95 signaling is vital for developing targeted therapies.
Purpose of the Study:
- To provide a comprehensive overview of recent advancements in CD95 signaling.
- To elucidate the molecular mechanisms underlying CD95-mediated apoptosis.
- To highlight the interplay between CD95, caspases, mitochondria, and viral proteins.
Main Methods:
- Literature review of recent research on CD95 signaling pathways.
- Analysis of studies focusing on CD95-interacting proteins and complex formation.
- Examination of research on caspase activation and function in CD95-induced cell death.
- Review of studies investigating mitochondrial involvement and viral modulation of CD95 signaling.
Main Results:
- Detailed description of CD95-interacting molecules and their roles.
- Explanation of the formation and components of the death-inducing signaling complex (DISC).
- Elucidation of the critical role of caspase-8 and its substrates in executing apoptosis.
- Highlighting the significant contribution of mitochondria to CD95-mediated cell death.
- Summarizing mechanisms by which viral proteins disrupt CD95 signaling.
Conclusions:
- CD95 signaling is a complex pathway involving intricate molecular interactions.
- Mitochondria play a pivotal role in amplifying the apoptotic signal initiated by CD95.
- Viral proteins have evolved sophisticated strategies to evade or manipulate CD95-induced apoptosis.
- Further research into CD95 signaling could lead to novel therapeutic strategies for various diseases.
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