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Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death
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Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death

Published on: December 27, 2016

Molecular regulation of inflammation and cell death

Garabet Yeretssian1, Katherine Labbé, Maya Saleh

  • 1Department of Medicine, Division of Critical Care, and Centre for the Study of Host Resistance, McGill University, Montreal, Que., Canada.

Cytokine
|August 16, 2008
PubMed

Insights

Cell death and innate immunity involve ancient molecular pathways. Recent research highlights pattern recognition receptors and inflammasomes, revealing links between NLR innate immunity and mitochondrial apoptosis.

Area of Science:

  • Molecular Biology
  • Immunology
  • Cell Biology

Background:

  • Cell death and innate immunity are evolutionarily conserved processes.
  • Recent advancements focus on molecular mechanisms linking danger signal sensing to inflammation.
  • Pattern recognition receptors (PRRs), including Toll-like receptors (TLRs) and Nod-like receptors (NLRs), are key players.

Purpose of the Study:

  • To review molecular pathways of cell death and innate immunity.
  • To highlight recent advancements in these fields.
  • To emphasize analogies between NLR innate immunity and mitochondrial apoptosis.

Main Methods:

  • Literature review focusing on molecular mechanisms.
  • Analysis of signal transduction pathways, adaptors, and effectors.
  • Characterization of the inflammasome complex.

Main Results:

  • Identification of PRRs has revitalized innate immunity research.
  • The inflammasome, scaffolded by NLRs, activates inflammatory caspases.
  • Striking analogies exist between NLR innate immunity and mitochondrial apoptosis pathways.

Conclusions:

  • NLRs are central to innate immunity and inflammasome formation.
  • Inflammatory caspases are crucial effectors in inflammation and cell death.
  • Understanding these pathways offers insights into disease mechanisms and therapeutic targets.

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