Related Experiment Video
Updated: Aug 14, 2026

Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells
Published on: May 22, 2014
Naringenin Ameliorates Acute Inflammation by Regulating Intracellular Cytokine Degradation
Lingtao Jin1,2, Wenfeng Zeng1, Fayun Zhang1
1Protein and Peptide Pharmaceutical Laboratory, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; and.
Abstract:
Ungoverned activation of innate and adaptive immunity results in acute inflammatory disease, such as bacteria-induced endotoxemia and fulminant hepatitis by virus infection. Thus, therapeutic control of inflammation is crucial for clinical management of many human diseases. In murine models of LPS- and Con A-induced liver injury, we found that naringenin, a natural predominant flavanone, is capable of protecting against lethality induced by LPS and preventing inflammation-induced organ injury. The protective effect of naringenin is mediated by reducing the levels of several inflammatory cytokines. Unexpectedly, naringenin inhibits TNF-α and IL-6 secretion in macrophages and T cells without interfering with the TLR signaling cascade, cytokine mRNA stability, or protein translation. These results indicate the existence of a posttranslational control mechanism. Further studies show that naringenin enhances intracellular cytokine degradation through lysosome- and TFEB-dependent mechanisms. This study provides evidence that naringenin has the capacity to dampen cytokine production by regulating lysosome function. Thus, naringenin may represent a potential therapeutic agent for controlling inflammation-related diseases.
Insights
Naringenin, a natural flavanone, protects against lethal inflammation by enhancing the degradation of inflammatory cytokines. This discovery offers a new therapeutic strategy for managing inflammatory diseases.
Area of Science:
- Immunology
- Pharmacology
- Cell Biology
Background:
- Acute inflammatory diseases arise from uncontrolled immune responses.
- Therapeutic control of inflammation is vital for treating numerous human conditions.
- Liver injury models, such as LPS- and Con A-induced, are used to study inflammation.
Purpose of the Study:
- To investigate the protective effects of naringenin against inflammation-induced liver injury.
- To elucidate the mechanism by which naringenin modulates inflammatory cytokine production.
Main Methods:
- Murine models of LPS- and Con A-induced liver injury.
- Analysis of inflammatory cytokine levels (e.g., TNF-α, IL-6).
- Investigation of intracellular cytokine degradation pathways involving lysosomes and TFEB.
Main Results:
- Naringenin demonstrated protection against lethality and organ injury in murine models.
- Naringenin reduced inflammatory cytokine levels without affecting TLR signaling, mRNA stability, or protein translation.
- Naringenin was found to enhance intracellular cytokine degradation via lysosome- and TFEB-dependent pathways.
Conclusions:
- Naringenin effectively dampens cytokine production by regulating lysosome function.
- Naringenin represents a potential therapeutic agent for inflammation-related diseases.
- The study highlights a posttranslational control mechanism for cytokine regulation by naringenin.
Related Concept Videos
NF-κB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
Inflammatory Response
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Acute Inflammation I: Inflammatory Response
Acute Inflammation II: Cellular Phase
Acute Inflammation III: Local and Systemic Effects
Chronic Inflammation: Introduction

