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Metabolic Reprogramming of the Liver by IL-33: A Protective Response to Acute Injury
Ying Wu1, Weinan Gao1, Mengrui He1
1Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China.
Cells
|August 13, 2026
Summary
Interleukin-33 (IL-33) regulates liver metabolism and promotes hepatocyte oxidative phosphorylation. This alarm hormone also protects against carbon tetrachloride-induced acute liver injury.
Area of Science:
- Hepatology
- Immunology
- Metabolic research
Background:
- Liver diseases, including alcoholic hepatitis, viral hepatitis, and fatty liver, are significant health concerns.
- Interleukin-33 (IL-33), an IL-1 family cytokine and alarmin, plays diverse roles in liver physiology and pathology.
Purpose of the Study:
- To investigate the role of IL-33 in regulating hepatocyte fate and liver metabolism.
- To identify IL-33 as a novel metabolic regulatory factor.
Main Methods:
- Integration of transcriptomic data analysis.
- In vitro and in vivo experimental validation.
Main Results:
- IL-33 influences hepatocyte fate through metabolic reprogramming.
- IL-33 promotes oxidative phosphorylation in hepatocytes.
- IL-33 antagonizes carbon tetrachloride (CCl4)-induced acute liver injury.
Conclusions:
- IL-33 functions as a critical checkpoint in liver metabolism.
- Beyond its alarm hormone function, IL-33 actively regulates metabolic processes.
- IL-33 demonstrates protective effects against acute liver injury.
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