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Measuring Composition of CD95 Death-Inducing Signaling Complex and Processing of Procaspase-8 in this Complex
07:17

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

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The multilevel regulation of CD95 signaling outcome

M Yurchenko1, L M Shlapatska, S P Sidorenko

  • 1Department of Cell Regulation, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of NAS of Ukraine, Kyiv 03022, Ukraine.

Experimental Oncology
|October 17, 2012
PubMed

Insights

CD95 (Fas/APO-1) receptor signaling governs cell fate through multiple regulatory levels, influencing both cell death and survival pathways. Understanding these molecular switches is key to comprehending apoptosis.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Immunology

Background:

  • CD95 (Fas/APO-1) is a pivotal death receptor (DR) identified early in apoptosis research.
  • DR signaling principles for cell fate regulation have been elucidated through CD95 studies.
  • Cell death and survival are governed by complex molecular networks under multilevel control.

Purpose of the Study:

  • To review the regulation of CD95 signaling pathways.
  • To analyze the molecular switches dictating CD95's pro- and anti-apoptotic functions.
  • To explore the five key levels of CD95-mediated life-death cell regulation.

Main Methods:

  • Literature review focusing on CD95 signaling.
  • Analysis of molecular mechanisms controlling apoptosis and survival.
  • Identification of regulatory levels: extracellular, membrane, DISC, mitochondrial, and miRNA.

Main Results:

  • CD95 signaling exhibits versatile principles in cell fate regulation.
  • DRs can induce both pro-apoptotic and anti-apoptotic effects.
  • Five distinct levels of CD95-mediated life-death regulation were identified.

Conclusions:

  • The cellular outcome of DR signaling is contingent on extracellular signals and intracellular components.
  • Multilevel control via CD95 integrates various signals to determine cell fate.
  • This review provides insights into the intricate regulation of apoptosis by CD95.

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