Cell death-mediated cytokine release and its therapeutic implications

David E Place1, Thirumala-Devi Kanneganti2

  • 1Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN.

Insights

Regulated cell death pathways like pyroptosis and necroptosis, distinct from apoptosis, release immune signals. Understanding these pathways and their key molecules, GSDMD and MLKL, offers new therapeutic targets for inflammatory diseases.

Area of Science:

  • Cellular Biology
  • Immunology
  • Pathology

Background:

  • Apoptosis targeting has advanced disease treatment.
  • Alternative regulated cell death forms, pyroptosis and necroptosis, are increasingly recognized.
  • These lytic cell death pathways differ from apoptosis, characterized by cell lysis and release of immune-modulating components.

Purpose of the Study:

  • To review the molecular mechanisms of pyroptosis and necroptosis.
  • To explore the role of these pathways in disease pathogenesis.
  • To identify potential therapeutic targets within these cell death cascades.

Main Methods:

  • Literature review focusing on pyroptosis and necroptosis.
  • Analysis of molecular executioners GSDMD and MLKL.
  • Examination of cytokine release (IL-1, IL-18) and immune responses.

Main Results:

  • Pyroptosis and necroptosis involve distinct molecular cascades.
  • These pathways release potent immune cytokines (IL-1, IL-18).
  • GSDMD and MLKL are key executioners in inflammatory disease progression.

Conclusions:

  • Understanding pyroptosis and necroptosis provides novel therapeutic targets.
  • Targeting GSDMD and MLKL shows potential for managing inflammatory diseases.
  • Interplay between cell death pathways is physiologically significant.

Related Concept Videos

Overview of Cell Death01:30

Overview of Cell Death

Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
9.6K
Autophagic Cell Death01:18

Autophagic Cell Death

Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
4.4K
Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein01:20

Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein

Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
852
Receptor-mediated Endocytosis01:39

Receptor-mediated Endocytosis

Overview
110.7K
Therapeutic Index01:13

Therapeutic Index

The therapeutic index of a drug is a key parameter in pharmacology that quantifies the relative safety of a drug by calculating the ratio between the dose that causes toxicity in half the population (50%) to the dose that proves to be effective for half the population (50%). It provides a spectrum of doses for a particular drug ranging from effective to potentially toxic. To illustrate, consider an anticoagulant agent like warfarin. It possesses a narrow window within its therapeutic index to...
6.7K
Energy-releasing Steps of Glycolysis01:28

Energy-releasing Steps of Glycolysis

Glycolysis is divided into two phases based on whether energy is utilized or released. While the first phase consumes ATP, the second phase produces energy in the form of ATP and NADH. The energy is released over a sequence of reactions that turns G3P into pyruvate. The energy-releasing phase—steps 6-10 of glycolysis—occurs twice, once for each of the two 3-carbon sugars produced during steps 1-5 of the first phase.
The first energy-releasing step—the 6th step of glycolysis...
146.5K