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Cinnabarinic Acid-Induced Stanniocalcin 2 Confers Cytoprotection against Alcohol-Induced Liver Injury
Aditya D Joshi1, Gopal Thinakaran2, Cornelis Elferink2
1Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma (A.D.J.); Byrd Alzheimer's Center and Research Institute and Department of Molecular Medicine, University of South Florida, Tampa, Florida (G.T.); and Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (C.E.) aditya-joshi@ouhsc.edu.
Cinnabarinic acid (CA) upregulates stanniocalcin 2 (STC2), protecting liver cells from ethanol-induced injury. STC2 is essential for this cytoprotection, offering therapeutic potential for liver diseases.
Area of Science:
- Biochemistry
- Molecular Biology
- Hepatology
Background:
- Stanniocalcin 2 (STC2) is a secreted glycoprotein involved in cellular processes.
- The aryl hydrocarbon receptor (AhR) pathway regulates gene expression.
- Cinnabarinic acid (CA) is an endogenous AhR agonist.
Purpose of the Study:
- To investigate the role of STC2 in cytoprotection against ethanol-induced liver injury.
- To confirm STC2 as a novel AhR target gene regulated by CA.
- To evaluate the therapeutic potential of CA in liver disease models.
Main Methods:
- Utilized mouse models of chronic and acute ethanol feeding.
- Employed STC2 knockout mice (STC2-/-).
- Performed in vivo gene delivery to re-express STC2 in the liver.
Main Results:
- CA-induced STC2 expression protected against ethanol-induced liver injury.
- CA failed to protect STC2 knockout mice from liver injury.
- Re-expression of STC2 restored cytoprotection in knockout mice.
- STC2 is critical for cell survival and protection against apoptosis and steatosis.
Conclusions:
- STC2 is a crucial mediator of CA-induced cytoprotection against liver injury.
- CA-mediated AhR signaling and STC2 upregulation have therapeutic implications for hepatic diseases.
- CA shows promise as a lead compound for developing treatments for liver diseases.
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