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Updated: Jan 21, 2026

Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells
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Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells

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Cardamonin from a medicinal herb protects against LPS-induced septic shock by suppressing NLRP3 inflammasome

Zhilei Wang1, Guang Xu2, Yuan Gao3

  • 1School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.

Acta Pharmaceutica Sinica. B
|August 7, 2019
PubMed

Insights

Cardamonin (CDN) inhibits NLRP3 inflammasome activation, a key factor in inflammatory diseases. This natural compound shows therapeutic potential for treating NLRP3-driven conditions.

Area of Science:

  • Immunology
  • Pharmacology
  • Traditional Chinese Medicine

Background:

  • NLRP3 inflammasome activation is central to inflammation-related diseases.
  • Identifying NLRP3 inhibitors is crucial for therapeutic development.
  • Cardamonin (CDN), from *Alpinia katsumadai*, exhibits anti-inflammatory effects with an unclear mechanism.

Purpose of the Study:

  • To elucidate the mechanism of Cardamonin's anti-inflammatory activity.
  • To investigate Cardamonin's effect on NLRP3 inflammasome activation.
  • To evaluate Cardamonin as a potential therapeutic agent for NLRP3-driven diseases.

Main Methods:

  • Assessed Cardamonin's effect on canonical and noncanonical NLRP3 inflammasome activation.
  • Determined specificity against NLRC4 and AIM2 inflammasomes.
  • Investigated the role of NF-κB signaling.
  • Analyzed ASC oligomerization and speckle formation.
  • Evaluated Cardamonin's efficacy in a mouse model of septic shock.

Main Results:

  • Cardamonin specifically inhibits NLRP3 inflammasome activation by multiple stimuli.
  • Inhibition is independent of NF-κB pathway activation.
  • Cardamonin blocks ASC oligomerization and speckle formation dose-dependently.
  • Cardamonin enhances survival in septic shock models and reduces IL-1β production.

Conclusions:

  • Cardamonin is a specific, broad-spectrum NLRP3 inflammasome inhibitor.
  • Cardamonin acts by preventing ASC oligomerization.
  • Cardamonin demonstrates therapeutic potential for NLRP3 inflammasome-mediated diseases.

Keywords:
CardamoninCaspase-1IL-1βNLRP3 inflammasomeSeptic shock

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